Renishaw plc

United Kingdom

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IPC Class
B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor 55
G01B 21/04 - Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness by measuring coordinates of points 55
B33Y 10/00 - Processes of additive manufacturing 48
B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting 43
B33Y 50/02 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes 40
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Registered / In Force 241
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1.

NEUROSURGICAL APPARATUS AND METHODS

      
Application Number 18430389
Status Pending
Filing Date 2024-02-01
First Publication Date 2024-06-06
Owner RENISHAW PLC (United Kingdom)
Inventor
  • Gill, Steven Streatfield
  • Woolley, Maxwell Roy
  • Gill, Thomas

Abstract

A neurosurgical kit includes a catheter and a guide tube. The catheter includes a distal section of tubing having a distal end with a port or ports for delivering fluid to a target site within the brain. The distal section of tubing has an outer diameter that is smaller than an internal diameter of the guide tube. The catheter and guide tube are arranged such that, when the catheter is inserted into the guide tube to locate the port or ports at the target site, a recess is provided in a distal end section of the guide tube between the guide tube and the distal section of tubing of the catheter.

IPC Classes  ?

  • A61M 25/06 - Body-piercing guide needles or the like
  • A61B 17/34 - Trocars; Puncturing needles
  • A61B 90/00 - Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups , e.g. for luxation treatment or for protecting wound edges
  • A61B 90/10 - Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups , e.g. for luxation treatment or for protecting wound edges for stereotaxic surgery, e.g. frame-based stereotaxis
  • A61B 90/11 - Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups , e.g. for luxation treatment or for protecting wound edges for stereotaxic surgery, e.g. frame-based stereotaxis with guides for needles or instruments, e.g. arcuate slides or ball joints
  • A61M 25/00 - Catheters; Hollow probes

2.

A METROLOGY RADIO COMMUNICATIONS SYSTEM

      
Application Number 18283250
Status Pending
Filing Date 2022-04-06
First Publication Date 2024-05-30
Owner RENISHAW PLC (United Kingdom)
Inventor
  • Styles, John Anthony
  • Taylor, Paul Anthony

Abstract

A frequency hopping radio communications system includes a measurement station having a first clock and an interface station having a second clock. The measurement station transmits measurement information from a measurement event. The measurement information includes timing information relating the measurement event to the first clock. The interface station receives the measurement information and generates a measurement output including timing information relative to the second clock. One of the first and second clocks is designated as a master clock and a periodic clock adjustment of the other is performed to maintain synchronisation with the designated master clock. The timing information of the measurement output generated by the interface station takes into account any of the periodic clock adjustments that are applied between the occurrence of the measurement event and the generation of the measurement output. In this manner, jitter is reduced and metrology performance is improved.

IPC Classes  ?

  • H04B 1/7156 - Arrangements for sequence synchronisation

3.

A MEASUREMENT DEVICE AND A MEASUREMENT INTERFACE HAVING A RADIO COMMUNICATIONS MODULE

      
Application Number 18283065
Status Pending
Filing Date 2022-04-06
First Publication Date 2024-05-23
Owner RENISHAW PLC (United Kingdom)
Inventor
  • Styles, John Anthony
  • Taylor, Paul Anthony

Abstract

A frequency hopping radio communications module includes a clock and a memory for storing a hopping pattern. The communications module is switchable between first, second, and third modes. The first and second modes respectively transmit and/or receive data using a series of frames having first and second frame times. The first frame time is equal to, or an integer multiple of, the base time interval. The second frame time is an integer multiple of the first frame time. Operation in the third mode includes transmitting and/or receiving data using a series of frames having a third frame time, the third frame time being an integer multiple of the second frame time. Each successive base time interval is associated with a successive frequency channel of the hopping pattern sequence and each frame uses the frequency channel associated with the base time interval that occurs at the start of that frame.

IPC Classes  ?

  • H04B 1/7156 - Arrangements for sequence synchronisation
  • G01B 5/008 - Measuring arrangements characterised by the use of mechanical techniques for measuring coordinates of points using coordinate measuring machines

4.

RADIO COMMUNICATIONS APPARATUS FOR A MEASUREMENT SYSTEM

      
Application Number 18283279
Status Pending
Filing Date 2022-04-06
First Publication Date 2024-05-23
Owner RENISHAW PLC (United Kingdom)
Inventor
  • Styles, John Anthony
  • Taylor, Paul Anthony

Abstract

A frequency hopping radio communications module for a measurement system, including a measurement probe and an interface for a machine tool. The communications module is configured to transmit and/or receive radio signals using at least ten frequency channels and can operate in at least a metrology mode for communicating measurement data and a standby mode. Operation in the standby mode includes hopping between fewer frequency channels than operation in the metrology mode. In particular, operation in standby mode includes hopping between three of the at least ten frequency channels in accordance with a second hopping pattern, the three frequency channels being from different thirds of the frequency band. This allows faster frequency hopping synchronisation to be achieved and improves battery life.

IPC Classes  ?

  • H04B 1/7143 - Arrangements for generation of hop patterns

5.

METROLOGY APPARATUS

      
Application Number 18277661
Status Pending
Filing Date 2022-02-16
First Publication Date 2024-05-16
Owner RENISHAW PLC (United Kingdom)
Inventor
  • Butter, Andrew Geoffrey
  • Hoy, Benjamin George

Abstract

A metrology apparatus includes an indexed articulated joint including: first and second relatively reorientable bodies, respectively having mutually engageable engagement elements, which can be locked together in different angular orientations about a first axis to provide a plurality of angularly indexed positions of the bodies; at least one verification sensor configured to provide a measure of the relative spatial configuration of bodies when in their locked state; and wherein the apparatus is configured such that when the bodies lock together at an indexed position, the sensor measures the relative spatial configuration of the bodies, and wherein information obtained from the measure is compared to calibration information obtained from at least one other measure of the relative spatial configuration of the bodies when the bodies were locked at said indexed position at an earlier point in time, in order to establish information about the state of engagement of the bodies.

IPC Classes  ?

  • G01B 5/14 - Measuring arrangements characterised by the use of mechanical techniques for measuring distance or clearance between spaced objects or spaced apertures
  • G01B 11/00 - Measuring arrangements characterised by the use of optical techniques
  • G01B 11/14 - Measuring arrangements characterised by the use of optical techniques for measuring distance or clearance between spaced objects or spaced apertures
  • G01B 21/04 - Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness by measuring coordinates of points

6.

MEASUREMENT PROBE

      
Application Number 18279930
Status Pending
Filing Date 2022-03-01
First Publication Date 2024-05-02
Owner RENISHAW PLC (United Kingdom)
Inventor
  • Buckingham, Jamie John
  • Marshall, Derek
  • Ould, John Charles

Abstract

A method of communicating information to a measurement probe mounted on a coordinate positioning machine includes encoding the information as one or more of a plurality of characteristic movements of the probe, controlling the machine to impart the movement(s) to the probe, detecting the movement(s) at the probe, and decoding the information at the probe from the detected movement(s). A measurement probe for use in such a method is mountable to the machine and includes at least one movement sensor for sensing movement imparted to the measurement probe by the machine, and a controller for determining whether the sensed movement includes one or more of the plurality of characteristic movements of the probe and for performing an operation at or controlling operation of the probe in dependence on the determination.

IPC Classes  ?

  • G01B 21/04 - Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness by measuring coordinates of points
  • G01B 5/008 - Measuring arrangements characterised by the use of mechanical techniques for measuring coordinates of points using coordinate measuring machines

7.

ARTICULATED MEMBER

      
Application Number 18277628
Status Pending
Filing Date 2022-02-16
First Publication Date 2024-04-25
Owner RENISHAW PLC (United Kingdom)
Inventor
  • Butter, Andrew Geoffrey
  • Hoy, Benjamin George

Abstract

A metrology apparatus including an articulated joint having: first and second bodies which can be locked together in a plurality of different angular orientations about a first axis; the first body including a prop which is actuatable by a motor between a retracted configuration at which the first and second bodies are in their locked state, and an extended configuration at which the first and second bodies are held apart by the prop along the first axis such that the first and second bodies are unlocked thereby permitting relative rotation of the first and second bodies, the prop and the second body being magnetically biased toward each other so as to magnetically retain the first and second bodies; and further including at least one supplemental bias member configured to bias the prop towards its retracted configuration.

IPC Classes  ?

  • G01B 21/04 - Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness by measuring coordinates of points
  • G01D 11/30 - Supports specially adapted for an instrument; Supports specially adapted for a set of instruments

8.

DISC SCALE MEMBER OFFSET DETERMINATION

      
Application Number 18272847
Status Pending
Filing Date 2022-02-08
First Publication Date 2024-03-14
Owner RENISHAW PLC (United Kingdom)
Inventor
  • Henshaw, James Reynolds
  • Harrison, Matthew Damian
  • Summers, Ivor John

Abstract

A method of determining any offset between: a scale axis of a disc scale member having a planar surface on which is provided a series of scale features defining a scale that extends and is centred around the scale axis, the scale axis extending normal to the planar surface; and the axis of rotation of a machine part on which the disc scale member is mounted, wherein the axis of rotation and the scale axis of the disc scale member are substantially parallel. The method includes: determining any offset between the scale axis and the axis of rotation via inspection of an axially-extending surface provided with the disc scale member.

IPC Classes  ?

  • G01D 5/347 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using optical means, i.e. using infrared, visible or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells using displacement encoding scales

9.

ROTARY ENCODER

      
Application Number 18273058
Status Pending
Filing Date 2022-02-08
First Publication Date 2024-03-14
Owner RENISHAW PLC (United Kingdom)
Inventor
  • Carruthers-Watt, Benjamin Nigel
  • Evans, Finlay Jonathan
  • Harrison, Matthew Damian

Abstract

A method of mounting rotary scale member on machine part includes: locating rotary scale member on machine part such that scale axis and axis of rotation are substantially parallel, and subsequently arranging at least a first radial adjustment device to contact both machine part and rotary scale member, and manipulating the at least first radial adjustment device to radially displace body of rotary scale member. At least the majority of any radial reaction force, generated as a result of the interaction of at least one of the flexures with a radial stop member against which it is radially pressed, and which is imparted on the at least first radial adjustment device by rotary scale member in opposition to the radial displacement of the rotary scale member, is directed into, and reacted by, the machine part via the contact between the at least first radial adjustment device and the machine part.

IPC Classes  ?

  • G01D 5/244 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means generating pulses or pulse trains
  • G01D 5/347 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using optical means, i.e. using infrared, visible or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells using displacement encoding scales

10.

SELECTIVE SOLIDIFICATION APPARATUS AND METHODS

      
Application Number 18512305
Status Pending
Filing Date 2023-11-17
First Publication Date 2024-03-14
Owner RENISHAW PLC (United Kingdom)
Inventor
  • Brown, Ceri
  • Mcfarland, Geoffrey

Abstract

A selective solidification apparatus includes a build chamber, a build platform lowerable in the build chamber, a wiper for spreading powder material across the build platform to form successive powder layers of a powder bed, an energy beam unit for generating an energy beam for consolidating the powder material, a scanner for directing and focussing the energy beam onto each powder layer and a processor for controlling the scanner. The processor is arranged to control the scanner to scan the energy beam across the powder bed to consolidate powder material either side of the wiper when the wiper is moving across the powder bed and to scan the energy beam across at least one of the powder layers during two or more strokes of the wiper across the powder bed.

IPC Classes  ?

  • B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
  • B22F 10/00 - Additive manufacturing of workpieces or articles from metallic powder
  • B22F 10/28 - Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
  • B22F 10/366 - Scanning parameters, e.g. hatch distance or scanning strategy
  • B22F 12/49 - Scanners
  • B22F 12/67 - Blades

11.

LASER POWDER BED FUSION ADDITIVE MANUFACTURING METHODS

      
Application Number 18269914
Status Pending
Filing Date 2022-01-24
First Publication Date 2024-02-08
Owner RENISHAW PLC (United Kingdom)
Inventor
  • Brochu, Mathieu
  • Wang, Xianglong

Abstract

A laser powder bed fusion additive manufacturing method including performing laser melting of layers of a powder bed of steel powder in a protective atmosphere including nitrogen, wherein a temperature of the powder bed is below 220° C. A composition of the steel powder may include, by weight: 3% to 7% Cr, 2-5% Mo, 0.2% to 0.7% V, max 0.7% Si, max 1% Mn, max 1.5% C, and a balance of Fe.

IPC Classes  ?

  • B22F 10/28 - Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
  • B22F 10/32 - Process control of the atmosphere, e.g. composition or pressure in a building chamber
  • B22F 10/362 - Process control of energy beam parameters for preheating

12.

MANUFACTURING METHOD

      
Application Number 18265785
Status Pending
Filing Date 2021-12-08
First Publication Date 2024-02-01
Owner RENISHAW PLC (United Kingdom)
Inventor
  • Brochu, Mathieu
  • Ramakrishnan, Tejas
  • Kwon, Sunyong

Abstract

A method produces a workpiece including molybdenum, or tungsten, or chromium, or molybdenum alloy, or tungsten alloy, or chromium alloy by selective consolidation of successive layers of powder by an energy beam. The method includes performing the selective consolidation of the powder layer in a protective atmosphere including nitrogen.

IPC Classes  ?

  • B22F 10/28 - Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
  • B22F 10/50 - Treatment of workpieces or articles during build-up, e.g. treatments applied to fused layers during build-up
  • B33Y 10/00 - Processes of additive manufacturing
  • B33Y 40/10 - Pre-treatment
  • C22C 27/04 - Alloys based on tungsten or molybdenum
  • B33Y 70/00 - Materials specially adapted for additive manufacturing

13.

ROTARY ENCODER

      
Application Number 18027407
Status Pending
Filing Date 2021-10-04
First Publication Date 2024-01-25
Owner RENISHAW PLC (United Kingdom)
Inventor
  • Henshaw, James Reynolds
  • Harrison, Matthew Damian
  • Evans, Finlay Jonathan

Abstract

A method of mounting a rotary scale member on a part, the rotary scale member including a body on which a series of position features defining a scale is provided, and at least one mounting flexure configured to engage the part, the method including: force-fitting the rotary scale member and the part together, whereby the at least one flexure is displaced by the part and thereby urged via a radial reaction force into engagement with the part so as to form a friction fit with the part such that the body of the rotary scale member self-locates at an initial default radial location with respect to the part; and tweaking the radial location of the body relative to the part away from its initial default radial location to a new radial location.

IPC Classes  ?

  • G01D 5/347 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using optical means, i.e. using infrared, visible or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells using displacement encoding scales

14.

APPARATUS AND METHOD FOR DISTANCE METROLOGY

      
Application Number 18039864
Status Pending
Filing Date 2021-12-01
First Publication Date 2024-01-11
Owner RENISHAW PLC (United Kingdom)
Inventor
  • Weston, Nicholas John
  • Reid, Derryck Telford
  • Wright, Hollie

Abstract

An optical distance measurement or ranging apparatus, the apparatus including at least one optical pulse generator for generating a train of gating pulses and a train of probe pulses, the train of gating pulses having a different repetition rate than the train of probe pulses. The gating and probe pulses may be ultrashort laser pulses generated by different free-running, mode-locked lasers. An optical probing arrangement for directing the train of probe pulses to one or more objects and for collecting returned probe pulses returned from the one or more objects. The objects may include a target object and a reference object. The apparatus includes a multi-photon effect detector and is configured to direct both the train of gating pulses and the returned probe pulses to the multi-photon effect detector. The apparatus may be used for industrial inspection, machine calibration, position measurement or the like.

IPC Classes  ?

  • G01S 17/10 - Systems determining position data of a target for measuring distance only using transmission of interrupted, pulse-modulated waves
  • G01S 7/481 - Constructional features, e.g. arrangements of optical elements
  • G01S 7/4865 - Time delay measurement, e.g. time-of-flight measurement, time of arrival measurement or determining the exact position of a peak
  • G01S 7/4861 - Circuits for detection, sampling, integration or read-out

15.

POWDER BED FUSION APPARATUS AND METHODS

      
Application Number 18254832
Status Pending
Filing Date 2021-11-30
First Publication Date 2024-01-04
Owner RENISHAW PLC (United Kingdom)
Inventor
  • Mcmurtry, David Roberts
  • Derrick, Hugo George
  • Kemakolam, Nneji

Abstract

A powder bed fusion apparatus for building an object, including a processing chamber having a processing chamber aperture, scanner arranged to direct an energy beam to locations in a plane of the aperture and debuilding chamber having a debuilding chamber aperture. The apparatus includes a build chamber including a build sleeve and platform movable therein for supporting powder, the platform including a seal for engaging with the sleeve walls to prevent flow of powder past the platform; and at least one drive mechanism for driving movement of the platform. A translation mechanism moves the chamber between a building position, wherein the sleeve aligns with the processing aperture so an energy beam can be delivered to consolidate powder to build the object, and debuilding position, wherein the sleeve aligns with the debuilding aperture so the object and powder can be inserted into the debuilding chamber through movement of the platform.

IPC Classes  ?

  • B22F 12/33 - Platforms or substrates translatory in the deposition plane
  • B22F 12/49 - Scanners
  • B22F 12/00 - Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
  • B22F 12/70 - Gas flow means
  • B22F 10/28 - Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
  • B22F 10/73 - Recycling of powder
  • B22F 10/68 - Cleaning or washing
  • B22F 10/32 - Process control of the atmosphere, e.g. composition or pressure in a building chamber
  • B33Y 40/20 - Post-treatment, e.g. curing, coating or polishing
  • B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
  • B33Y 10/00 - Processes of additive manufacturing

16.

POWDER BED FUSION METHODS AND RELATED APPARATUS

      
Application Number 18038508
Status Pending
Filing Date 2021-12-07
First Publication Date 2023-12-21
Owner RENISHAW PLC (United Kingdom)
Inventor
  • Brown, Ceri
  • Brochu, Mathieu
  • Shandiz, Mohammad Attarian
  • Kumar, Amit

Abstract

A method of determining instructions to be executed by a powder bed fusion apparatus, in which an object is built in a layer-by-layer manner by selectively irradiating regions of successively formed powder layers with an energy beam. The method includes determining an exposure parameter for each location within a layer to be irradiated with the energy beam from a primary exposure parameter, the exposure parameters varying with location. An amount each exposure parameter varies from the primary exposure parameter is determined, at least in part, from a geometric quantity of the object derived from the location of the irradiation.

IPC Classes  ?

  • B22F 10/38 - Process control to achieve specific product aspects, e.g. surface smoothness, density, porosity or hollow structures
  • B22F 10/366 - Scanning parameters, e.g. hatch distance or scanning strategy
  • B22F 10/85 - Data acquisition or data processing for controlling or regulating additive manufacturing processes
  • B33Y 50/02 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
  • B22F 10/28 - Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
  • B33Y 10/00 - Processes of additive manufacturing
  • B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
  • B22F 12/90 - Means for process control, e.g. cameras or sensors
  • B22F 12/41 - Radiation means characterised by the type, e.g. laser or electron beam
  • B22F 12/45 - Two or more
  • B22F 12/49 - Scanners

17.

COORDINATE POSITIONING MACHINE

      
Application Number 17763483
Status Pending
Filing Date 2020-10-15
First Publication Date 2023-11-23
Owner RENISHAW PLC (United Kingdom)
Inventor
  • Mcmurtry, David Roberts
  • Angood, Stephen Mark

Abstract

A coordinate positioning machine includes a plurality of drive axes, each being a rotary or linear drive axis, for positioning a platform within a working volume of the machine, and a separate linear counterbalance axis for counterbalancing the platform. With this arrangement the counterbalance axis can be substantially invariant to changes in orientation of the drive axes and can be counterbalanced by a simple counterweight. Also, an arrangement wherein the counterbalance axes and force generator are arranged so horizontal movement of the platform causes substantially no net movement of and/or no work to be done on the generator. Also, an arrangement wherein a series of counterbalance axes has at least one rotary counterbalance axis, and the generator is arranged behind or at a predetermined distance from the counterbalance axis. Also, an arrangement having a series of counterbalance axes with at most one rotary counterbalance axis between the generator and ground.

IPC Classes  ?

  • G01B 5/00 - Measuring arrangements characterised by the use of mechanical techniques
  • G01B 5/008 - Measuring arrangements characterised by the use of mechanical techniques for measuring coordinates of points using coordinate measuring machines

18.

POWDER BED FUSION ADDITIVE MANUFACTURING METHODS AND APPARATUS

      
Application Number 17777511
Status Pending
Filing Date 2020-12-14
First Publication Date 2023-11-09
Owner RENISHAW PLC (United Kingdom)
Inventor Aswathanarayanaswamy, Ravi Guttamindapalli

Abstract

A powder bed fusion additive manufacturing method in which an object is built in a layer-by-layer manner. The method includes, for each layer of a plurality of successively fused layers, melting material of the layer by irradiating the layer with one or more energy beams a first time using a first set of irradiation parameters and allowing the melted material to solidify to define a fused region of the layer and reheating the fused region by irradiating the layer a subsequent time with one or more of energy beams using a second set of irradiation parameters. The first set of irradiation parameters includes at least one different irradiation parameter to the second set of irradiation parameters.

IPC Classes  ?

  • B22F 10/50 - Treatment of workpieces or articles during build-up, e.g. treatments applied to fused layers during build-up
  • B22F 10/28 - Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
  • B33Y 10/00 - Processes of additive manufacturing
  • B33Y 40/20 - Post-treatment, e.g. curing, coating or polishing
  • B22F 10/364 - Process control of energy beam parameters for post-heating, e.g. remelting
  • B22F 12/45 - Two or more

19.

COORDINATE POSITIONING MACHINE

      
Application Number 18130948
Status Pending
Filing Date 2023-04-05
First Publication Date 2023-10-26
Owner RENISHAW PLC (United Kingdom)
Inventor Duprez, Julius

Abstract

A method of calibrating a coordinate positioning machine is described. The machine is controlled into a pivot pose in which a target point associated with a moveable part of the machine and a pivot point associated with a fixed part of the machine are separated from one another by a known separation. An error value for that pose is determined based on the known separation and a separation expected for that pose from the existing model parameters of the machine. The machine is controlled into a plurality of different target poses, and for each target pose a separation between the target point and the pivot point is measured and an error value for that pose is determined based on the measured separation and a separation expected for that pose from the existing model parameters.

IPC Classes  ?

  • G05B 19/402 - Numerical control (NC), i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by control arrangements for positioning, e.g. centring a tool relative to a hole in the workpiece, additional detection means to correct position
  • B25J 9/16 - Programme controls

20.

IMPROVEMENTS IN OR RELATING TO AN OPTICAL SCANNER FOR DIRECTING ELECTROMAGNETIC RADIATION TO DIFFERENT LOCATIONS WITHIN A SCAN FIELD

      
Application Number 18008601
Status Pending
Filing Date 2021-07-05
First Publication Date 2023-09-28
Owner RENISHAW PLC (United Kingdom)
Inventor
  • Mcmurtry, David Roberts
  • Dardis, John

Abstract

A method and apparatus for determining an alignment of an optical scanner for directing an electromagnetic beam to locations within a scan field. The method may include locating a reference element within the scan field of the optical scanner and controlling the optical scanner to cause the electromagnetic beam to be directed to a plurality of different points in the scan field, including at least one point on the reference element. Reflected electromagnetic radiation is detected. The method may include determining when the electromagnetic beam is directed to a reference position in the scan field given by the reference element from a comparison of an intensity of the detected electromagnetic radiation for the different points and determining a corresponding demand signal that causes the optical scanner to direct the electromagnetic beam to the reference position.

IPC Classes  ?

  • B22F 10/31 - Calibration of process steps or apparatus settings, e.g. before or during manufacturing
  • B22F 10/28 - Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
  • B22F 12/45 - Two or more
  • B29C 64/268 - Arrangements for irradiation using electron beams [EB]
  • B29C 64/386 - Data acquisition or data processing for additive manufacturing

21.

METHOD FOR MEASURING NON-TOOTHED TOOLS USING A NON-CONTACT TOOL SETTER

      
Application Number 18246776
Status Pending
Filing Date 2021-10-06
First Publication Date 2023-09-14
Owner RENISHAW PLC (United Kingdom)
Inventor
  • Hoyle, Samuel David
  • Merrifield, Benjamin Jason
  • Tocknell, Stephen Lindsey
  • Andrews, Paul

Abstract

An improved method is described for measuring a dimension (e.g. diameter) of a non-toothed tool, for example a grinding tool such as a diamond coated burr. The method may be implemented on a machine tool, such as a lathe, machining centre or the like. The method comprises passing a beam of light from a transmitter to a receiver. The receiver produces a received intensity signal related to the intensity of received light. Analysis of variations in the received intensity signal is performed when a rotating tool is moved relative to the light beam to enable a dimension of the tool to be measured. In particular, it may be determined when the received intensity signal has crossed a threshold for at least a defined duration, the defined duration being less than the time taken for one complete rotation of the tool.

IPC Classes  ?

  • B23Q 17/24 - Arrangements for indicating or measuring on machine tools using optics
  • B24B 49/12 - Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation involving optical means
  • G01B 11/02 - Measuring arrangements characterised by the use of optical techniques for measuring length, width, or thickness

22.

PRODUCTION AND MEASUREMENT OF WORKPIECES

      
Application Number 18200684
Status Pending
Filing Date 2023-05-23
First Publication Date 2023-09-14
Owner RENISHAW PLC (United Kingdom)
Inventor
  • Jonas, Kevyn Barry
  • Wisher-Davies, Stephen

Abstract

In a workpiece production method a plurality of nominally similar workpieces are produced in a production process on one production machine. The order or time of production of some of the workpieces on the production machine is recorded. Some of the workpieces recorded are measured at two or more inspection stations. Dimensions or points of one workpiece are measured at one of the inspection stations, and corresponding dimensions or points of another of the workpieces are measured at another of the inspection stations. The results of the measurements of corresponding dimensions or points made at the two or more inspection stations are analysed together, taking account of the order or time of production of the workpieces. An output signal is produced based on the analysing of the results together. The output signal indicates performance of the production machine or of one or more of the inspection stations.

IPC Classes  ?

  • G05B 19/048 - Monitoring; Safety
  • G01B 21/04 - Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness by measuring coordinates of points

23.

MEASUREMENT METHOD

      
Application Number 18016726
Status Pending
Filing Date 2021-07-19
First Publication Date 2023-09-07
Owner RENISHAW PLC (United Kingdom)
Inventor
  • Turner, Rhys David
  • Butter, Andrew Geoffrey

Abstract

A method of inspecting at least one feature of a part having a predetermined nominal shape, including: i) loading a contact probe onto a probe mount of a coordinate positioning apparatus which facilitates exchanging of probes thereon and relative movement of the mount and a part in three orthogonal degrees of freedom, the contact probe includes a reference member for engaging the part, and a stylus relative to the reference member and having a tip for contacting the surface to be measured; ii) bringing the reference member and stylus into contact with the part on one side of the feature, and then causing the stylus to traverse collecting measurement data concerning the relative position of tip and the reference member; and iii) extracting feature dimension information from the measurement data, and comparing the extracted dimension information to nominal dimension information for the nominal shape of the feature of the part.

IPC Classes  ?

  • G01B 5/012 - Contact-making feeler heads therefor

24.

METHOD OF CALIBRATING A SURFACE SENSING DEVICE, CORRESPONDING CALIBRATING PROGRAM FOR A CONTROL COMPUTER AND CORRESPONDING CALIBRATION KIT

      
Application Number 18130447
Status Pending
Filing Date 2023-04-04
First Publication Date 2023-07-27
Owner RENISHAW PLC (United Kingdom)
Inventor
  • Rees, Martin Simon
  • Butter, Andrew Geoffrey
  • Wallace, David Sven

Abstract

A surface sensing device is mounted on an articulating probe head of a coordinate measuring machine. The device includes an elongate probe holder which is rotatable about an axis. An elongate sensing module includes a surface finish or surface roughness probe with a stylus tip. This is connected to the probe holder via an adjustable knuckle joint. To determine the geometry of the surface sensing device, including the tip normal and drag vector of the stylus tip, the orientations of the probe holder and the sensing module are determined by probing points which are spaced along their lengths, using a separate probe.

IPC Classes  ?

  • G01B 21/04 - Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness by measuring coordinates of points
  • G01B 5/012 - Contact-making feeler heads therefor
  • G01B 7/012 - Contact-making feeler heads therefor
  • G01B 11/00 - Measuring arrangements characterised by the use of optical techniques

25.

ADDITIVE MANUFACTURING METHODS AND APPARATUS FOR FORMING OBJECTS FROM A NICKEL-BASED SUPERALLOY IN A LAYER-BY-LAYER MANNER

      
Application Number 17924557
Status Pending
Filing Date 2021-05-18
First Publication Date 2023-06-15
Owner RENISHAW PLC (United Kingdom)
Inventor
  • Brochu, Mathieu
  • Atabay, Sila Ece
  • Mata, Oscar Sanchez
  • Wang, Xianglong
  • Lerma, Jose Alberto Muniz

Abstract

An additive manufacturing method wherein an object is formed by selectively solidifying layers of powder with at least one energy beam. The method includes forming the object from a nickel-based superalloy, wherein exposure parameters and an exposure pattern for the at least one energy beam result in the object having a directionally solidified microstructure with columnar grains aligned with a build direction, perpendicular to the layers. A composition of the nickel-based alloy by weight % may include: 9.3-9.7W, 9.0-9.5Co, 7.5-8.5Cr, 5.4-5.7Al, 3.1-3.3Ta, 1.4-1.6Hf, 0.6-0.9Ti, Mo 0.4-0.6, 007-0.015Zr, 0.01-0.02B with a carbon concentration of around 0.07-0.09 wt % and a balance of Ni.

IPC Classes  ?

  • B22F 10/366 - Scanning parameters, e.g. hatch distance or scanning strategy
  • B22F 10/28 - Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
  • B22F 10/38 - Process control to achieve specific product aspects, e.g. surface smoothness, density, porosity or hollow structures
  • C22C 19/05 - Alloys based on nickel or cobalt based on nickel with chromium

26.

MEASURING DEVICE AND METHOD

      
Application Number 17916759
Status Pending
Filing Date 2021-03-24
First Publication Date 2023-05-11
Owner RENISHAW PLC (United Kingdom)
Inventor Leafe, Harry Alan

Abstract

A protection member for an optical measurement device, such as a break-beam tool setting device for a machine tool. The protection member includes a conduit through which light and air can pass. The conduit is configured such that, in use, a beam of light is passed through the conduit along an optical axis and a stream of air is guided out of the conduit along an airflow axis. The optical axis is non-parallel to the airflow axis and the conduit has a varying cross-sectional profile along the airflow axis. Improved measurement repeatability is provided.

IPC Classes  ?

  • G01B 11/02 - Measuring arrangements characterised by the use of optical techniques for measuring length, width, or thickness
  • G01B 11/08 - Measuring arrangements characterised by the use of optical techniques for measuring diameters
  • B23Q 17/24 - Arrangements for indicating or measuring on machine tools using optics

27.

MODULE FOR ADDITIVE MANUFACTURING APPARATUS

      
Application Number 18074663
Status Pending
Filing Date 2022-12-05
First Publication Date 2023-04-20
Owner RENISHAW PLC (United Kingdom)
Inventor Ufton, Jake Samuel

Abstract

This invention concerns a module for insertion into an additive manufacturing apparatus. The module comprising a frame mountable in a fixed position in the additive manufacturing apparatus, the frame defining a build chamber and a dosing chamber. A build platform is movable in the build chamber for supporting a powder bed during additive manufacturing of a part. A dosing piston is movable in the dosing chamber to push powder from the dosing chamber. A mechanism mechanically links the build platform to the dosing piston such that downward movement of the build platform in the build chamber results in upward movement of the dosing piston in the dosing chamber.

IPC Classes  ?

  • B22F 12/00 - Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
  • B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
  • B29C 64/232 - Driving means for motion along the axis orthogonal to the plane of a layer
  • B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
  • B33Y 10/00 - Processes of additive manufacturing
  • B33Y 50/02 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
  • B23K 26/082 - Scanning systems, i.e. devices involving movement of the laser beam relative to the laser head
  • B23K 26/342 - Build-up welding
  • B23K 26/70 - Auxiliary operations or equipment
  • B23K 26/06 - Shaping the laser beam, e.g. by masks or multi-focusing
  • B23K 26/08 - Devices involving relative movement between laser beam and workpiece

28.

SELECTIVE LASER SOLIDIFICATION APPARATUS AND METHOD

      
Application Number 18084029
Status Pending
Filing Date 2022-12-19
First Publication Date 2023-04-20
Owner RENISHAW PLC (United Kingdom)
Inventor
  • Dimter, Marc Frank
  • Mayer, Ralph Markus
  • Hess, Thomas

Abstract

Selective laser solidification apparatus is described that includes a powder bed onto which a powder layer can be deposited and a gas flow unit for passing a flow of gas over the powder bed along a predefined gas flow direction. A laser scanning unit is provided for scanning a laser beam over the powder layer to selectively solidify at least part of the powder layer to form a required pattern. The required pattern is formed from a plurality of stripes or stripe segments that are formed by advancing the laser beam along the stripe or stripe segment in a stripe formation direction. The stripe formation direction is arranged so that it always at least partially opposes the predefined gas flow direction. A corresponding method is also described.

IPC Classes  ?

  • B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
  • B33Y 10/00 - Processes of additive manufacturing
  • B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
  • B33Y 50/02 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
  • B22F 10/28 - Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
  • B23K 26/142 - Working by laser beam, e.g. welding, cutting or boring using a fluid stream, e.g. a jet of gas, in conjunction with the laser beam; Nozzles therefor for the removal of by-products
  • B23K 26/342 - Build-up welding
  • B23K 26/08 - Devices involving relative movement between laser beam and workpiece

29.

ADDITIVE MANUFACTURING METHOD AND SYSTEM

      
Application Number 18075505
Status Pending
Filing Date 2022-12-06
First Publication Date 2023-03-30
Owner RENISHAW PLC (United Kingdom)
Inventor
  • Mcmurtry, David R.
  • Mcfarland, Geoffrey
  • Revanur, Ramkumar

Abstract

A method builds a workpiece using an additive manufacturing process, wherein the workpiece is built up by consolidating material in a layer-by-layer manner. The method includes receiving an initial geometric model defining surface geometry of the workpiece, determining workpiece slices to be consolidated as layers of the workpiece during the additive manufacturing process from the initial geometric model, determining adjusted positions of the workpiece slices adjusted from initial positions of the workpiece slices as determined from the initial geometric model, the determination of the adjusted positions based upon warping of the workpiece expected to occur during or after the additive manufacturing process, and building the workpiece using the additive manufacturing process, wherein the workpiece slices are formed in the adjusted positions.

IPC Classes  ?

  • B29C 64/393 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
  • G06T 19/20 - Editing of 3D images, e.g. changing shapes or colours, aligning objects or positioning parts
  • B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting

30.

Non-contact tool measurement apparatus

      
Application Number 17975254
Grant Number 11904426
Status In Force
Filing Date 2022-10-27
First Publication Date 2023-02-16
Grant Date 2024-02-20
Owner RENISHAW PLC (United Kingdom)
Inventor
  • Cluff, Julian Alexander
  • Ferguson, Graham Richard
  • Leafe, Harry Alan
  • Lee, William Ernest

Abstract

A non-contact tool measurement apparatus is used in a machine tool environment. The apparatus includes a transmitter including a first aperture and a laser for generating light that is emitted from the transmitter through the first aperture towards a tool-sensing region. A receiver includes an optical detector and is arranged to receive light from the tool-sensing region. A processor analyses the light detected by the optical detector to enable the measurement of tools in the tool-sensing region. The laser is capable of generating light having a wavelength of less than 590 nm thereby enabling the size of the first aperture to be reduced resulting in a reduction in contaminant ingress. In one embodiment, the laser generates blue light.

IPC Classes  ?

  • B23Q 17/24 - Arrangements for indicating or measuring on machine tools using optics
  • G01B 11/02 - Measuring arrangements characterised by the use of optical techniques for measuring length, width, or thickness
  • G01V 8/12 - Detecting, e.g. by using light barriers using one transmitter and one receiver

31.

POSITIONING APPARATUS WITH AN ASSOCIATED TRANSFER MECHANISM

      
Application Number 17783483
Status Pending
Filing Date 2020-12-14
First Publication Date 2023-02-16
Owner RENISHAW PLC (United Kingdom)
Inventor
  • Hunter, Stephen Paul
  • Wooldridge, Michael John
  • Derrick, Hugo George
  • Huntley, James Richard Philip

Abstract

An apparatus including an inspection apparatus for inspecting an artefact, and a transfer mechanism for moving a pallet on which an artefact is located relative to the inspection apparatus so as to move the pallet to and from an inspection location, and further including at least one pallet lifter which can be actuated between a retracted and an extended configuration, configured such that when a pallet is at the inspection location the at least one pallet lifter can be actuated to its extended configuration so as to engage with and lift the pallet and thereby decouple the pallet from the transfer mechanism.

IPC Classes  ?

  • G01B 5/012 - Contact-making feeler heads therefor
  • B66F 3/24 - Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
  • B66F 3/26 - Adaptations or arrangements of pistons

32.

MEASUREMENT METHOD

      
Application Number 17792182
Status Pending
Filing Date 2021-02-23
First Publication Date 2023-02-16
Owner RENISHAW PLC (United Kingdom)
Inventor
  • Ould, John Charles
  • Crossland, Rose

Abstract

A method of determining a form measurement for a curved feature of an artefact. The method includes a positioning apparatus relatively moving the artefact and a measurement device relative along a curved path in a first direction, to obtain a first set of data points along the surface of the curved feature, and the positioning apparatus relatively moving the artefact and the measurement device other along a curved path in a second direction, opposite to the first direction, to obtain a second set of data points along the surface of the curved feature. The method further includes using the first and second sets of data points to determine a form measurement for the artefact.

IPC Classes  ?

  • G01B 5/20 - Measuring arrangements characterised by the use of mechanical techniques for measuring contours or curvatures
  • G01B 5/00 - Measuring arrangements characterised by the use of mechanical techniques
  • G01B 21/04 - Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness by measuring coordinates of points

33.

ADDITIVE MANUFACTURING METHOD AND APPARATUS

      
Application Number 17970779
Status Pending
Filing Date 2022-10-21
First Publication Date 2023-02-09
Owner RENISHAW PLC (United Kingdom)
Inventor
  • Jones, Nicholas Henry Hannaford
  • Brown, Ceri
  • Revanur, Ramkumar
  • Mcfarland, Geoffrey

Abstract

A method of monitoring an additive manufacturing apparatus. The method includes receiving one or more sensor signals from the additive manufacturing apparatus during a build of a workpiece, comparing the one or more sensor signals to a corresponding acceptable process variation of a plurality of acceptable process variations and generating a log based upon the comparisons. Each acceptable process variation of the plurality of acceptable process variations is associated with at least one state of progression of the build of the workpiece and the corresponding acceptable process variation is the acceptable process variation associated with the state of progression of the build when the one or more sensor signals are generated.

IPC Classes  ?

  • B22F 10/30 - Process control
  • B33Y 50/02 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
  • G05B 19/4093 - Numerical control (NC), i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by part programming, e.g. entry of geometrical information as taken from a technical drawing, combining this with machining and material information to obtain control information, named part programme, for the NC machine
  • B22F 10/00 - Additive manufacturing of workpieces or articles from metallic powder
  • B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
  • B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
  • B29C 64/393 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
  • B29C 64/245 - Platforms or substrates
  • B29C 64/268 - Arrangements for irradiation using electron beams [EB]

34.

Coordinate positioning arm

      
Application Number 17784946
Grant Number 11768067
Status In Force
Filing Date 2020-12-10
First Publication Date 2023-01-12
Grant Date 2023-09-26
Owner RENISHAW PLC (United Kingdom)
Inventor Angood, Stephen Mark

Abstract

A coordinate positioning arm includes: a base end and a head end; a drive frame for moving the head end relative to the base end; and a metrology frame for measuring a position and orientation of the head end relative to the base end. The drive frame includes a plurality of drive axes arranged in series between the base end and the head end. The metrology frame includes a plurality of metrology axes arranged in series between the base end and the head end. The metrology frame is adapted and arranged to be substantially separate and/or independent from the drive frame, for example by supporting the metrology frame substantially only at the base end and head end and by providing the metrology frame with sufficient degrees of freedom (via the metrology axes) to avoid creating an additional constraint between the metrology frame and the drive frame.

IPC Classes  ?

  • G01B 5/008 - Measuring arrangements characterised by the use of mechanical techniques for measuring coordinates of points using coordinate measuring machines
  • B25J 9/04 - Programme-controlled manipulators characterised by movement of the arms, e.g. cartesian co-ordinate type by rotating at least one arm, excluding the head movement itself, e.g. cylindrical co-ordinate type or polar co-ordinate type
  • B25J 13/08 - Controls for manipulators by means of sensing devices, e.g. viewing or touching devices
  • B25J 18/00 - Arms
  • G01B 21/04 - Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness by measuring coordinates of points

35.

ROTARY ENCODER

      
Application Number 17778652
Status Pending
Filing Date 2020-12-02
First Publication Date 2023-01-05
Owner RENISHAW PLC (United Kingdom)
Inventor
  • Evans, Finlay Jonathan
  • Henshaw, James Reynolds

Abstract

A rotary scale apparatus for an encoder apparatus including a planar disc on which at least one track including scale features is provided, in which the planar disc includes a hole through its centre for receiving a cylindrical shaft, and in which the rotary scale member includes at least three cantilevered spring members which are provided substantially in plane with the planar disc and spaced around the edge of the hole, for engaging with, and radially locating the disc on, a cylindrical shaft inserted therethrough.

IPC Classes  ?

  • G01D 5/347 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using optical means, i.e. using infrared, visible or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells using displacement encoding scales

36.

POSITION MEASUREMENT DEVICE

      
Application Number 17774013
Status Pending
Filing Date 2020-11-12
First Publication Date 2022-12-15
Owner RENISHAW PLC (United Kingdom)
Inventor
  • Slack, Jason Kempton
  • Cluff, Julian Alexander

Abstract

An encoder apparatus including a reflective scale and a readhead. The readhead includes at least one light emitting element, at least one sensor and at least one optical device, which together with the scale form an optical system in which the optical device forms an image of an illuminated region of the reflective scale onto the sensor. The system's optical path, from the light emitting element to the sensor, passes through the optical device on its way toward and after reflection from the scale. and includes an unreflected optical path between the light emitting element and the optical device and an unreflected optical path between the optical device and the sensor.

IPC Classes  ?

  • G01D 5/347 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using optical means, i.e. using infrared, visible or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells using displacement encoding scales
  • G01B 11/04 - Measuring arrangements characterised by the use of optical techniques for measuring length, width, or thickness specially adapted for measuring length or width of objects while moving

37.

Additive manufacturing apparatus and methods

      
Application Number 17885839
Grant Number 11780161
Status In Force
Filing Date 2022-08-11
First Publication Date 2022-12-01
Grant Date 2023-10-10
Owner RENISHAW PLC (United Kingdom)
Inventor
  • Brown, Ceri
  • Jones, Nicholas H H
  • Ewing, David G J
  • Mcfarland, Geoffrey

Abstract

An additive manufacturing apparatus including a scanner for directing a laser beam on to layers of flowable material to selectively solidify the material to form an object in a layer-by-layer manner. The scanner includes an optical component operable under the control of a first actuator to reflect the laser beam over a first range of angles in a first dimension and the or a further optical component operable under the control of a second actuator to reflect the laser beam over a second range of angles in the first dimension, wherein the second actuator provides a faster dynamic response but a smaller range of movement of the laser beam than the first actuator.

IPC Classes  ?

  • B33Y 50/02 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
  • B29C 64/393 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
  • B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
  • B33Y 10/00 - Processes of additive manufacturing
  • B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
  • G02B 26/10 - Scanning systems
  • B29C 64/264 - Arrangements for irradiation
  • B29C 64/268 - Arrangements for irradiation using electron beams [EB]
  • B33Y 40/00 - Auxiliary operations or equipment, e.g. for material handling
  • B22F 10/28 - Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
  • B22F 12/44 - Radiation means characterised by the configuration of the radiation means
  • B22F 12/49 - Scanners
  • B22F 10/366 - Scanning parameters, e.g. hatch distance or scanning strategy
  • G02B 26/00 - Optical devices or arrangements for the control of light using movable or deformable optical elements

38.

ENCODER APPARATUS

      
Application Number 17773990
Status Pending
Filing Date 2020-11-12
First Publication Date 2022-11-24
Owner RENISHAW PLC (United Kingdom)
Inventor
  • Dyson, Josh Alexander
  • Cluff, Julian Alexander

Abstract

An encoder apparatus including a readhead for reading a reflective scale located adjacent the readhead. The readhead includes a circuit board on which a sensor including one or more photodiodes for detecting light reflected from a scale located adjacent the readhead is mounted, and at least one light emitting element. The light emitting element is mounted to the circuit board via a light emitting element support structure which holds the light emitting element away from the circuit board and the sensing plane of the sensor, and at least a part of which extends over the sensor.

IPC Classes  ?

  • G01D 5/347 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using optical means, i.e. using infrared, visible or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells using displacement encoding scales

39.

NON-CONTACT TOOL SETTING APPARATUS AND METHOD FOR MOVING TOOL ALONG TOOL INSPECTION PATH

      
Application Number 17836505
Status Pending
Filing Date 2022-06-09
First Publication Date 2022-10-06
Owner RENISHAW PLC (United Kingdom)
Inventor
  • Lee, William Ernest
  • Maxted, Paul

Abstract

A method for assessing the profile of a tool using a non-contact tool setting apparatus that includes a transmitter for emitting a light beam and a receiver for receiving the beam. The receiver generates a beam intensity signal describing the intensity of received light. The setting apparatus is mounted to a coordinate positioning apparatus that allows the tool to be moved relative to the setting apparatus. The method includes using the coordinate positioning apparatus to move the tool relative to the setting apparatus along a tool inspection path, the tool inspection path being selected so that the light beam is traced substantially along a periphery of the tool to be inspected. Beam intensity data is collected describing the beam intensity signal that is generated by the receiver as the tool inspection path is traversed and analysis of the collected beam intensity data is used to assess the tool profile.

IPC Classes  ?

  • G01B 11/02 - Measuring arrangements characterised by the use of optical techniques for measuring length, width, or thickness
  • G01B 11/24 - Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
  • G01B 11/04 - Measuring arrangements characterised by the use of optical techniques for measuring length, width, or thickness specially adapted for measuring length or width of objects while moving
  • B23Q 17/24 - Arrangements for indicating or measuring on machine tools using optics

40.

METAL POWDER BED ADDITIVE MANUFACTURING APPARATUS AND METHODS

      
Application Number 17615507
Status Pending
Filing Date 2020-05-28
First Publication Date 2022-09-29
Owner RENISHAW PLC (United Kingdom)
Inventor
  • Porch, Adrian
  • Cripps, Steven
  • Parker, Nyle

Abstract

A powder bed fusion apparatus includes a build platform movable in a build sleeve, the build platform for supporting a bed of metal powder, a powder layer formation device for forming layers of metal powder to form the bed, a scanner for directing an energy beam to selected regions of each layer to consolidate the metal powder and a radio-wave generator arranged to surround the metal powder and generate radio waves to heat the metal powder that forms the bed.

IPC Classes  ?

  • B22F 10/28 - Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
  • B22F 10/366 - Scanning parameters, e.g. hatch distance or scanning strategy
  • H05B 6/62 - Apparatus for specific applications
  • H05B 6/50 - Circuits for monitoring or control
  • B22F 12/52 - Hoppers
  • B22F 12/00 - Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
  • B22F 12/30 - Platforms or substrates
  • B33Y 10/00 - Processes of additive manufacturing
  • B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
  • B22F 12/49 - Scanners

41.

MANUFACTURING METHOD AND APPARATUS

      
Application Number 17615852
Status Pending
Filing Date 2020-06-05
First Publication Date 2022-09-29
Owner RENISHAW PLC (United Kingdom)
Inventor Bulled, Colin Ray

Abstract

A method of manufacturing an article, including using coordinate measuring machine both to obtain three-dimensional point coordinate measurements of first part of article in place and to position a second part of article in predetermined spatial relationship relative to first part in dependence upon measurements of first part. Predetermined spatial relationship is defined in more than three degrees of freedom. Positioning second part relative to first part includes controlling machine to move second part relative to first part in more than three degrees of freedom. Machine is controlled to hold first and second parts in predetermined spatial relationship while performing an operation to fix both parts in predetermined spatial relationship. Second part is not in direct contact with any other part of article when first and second parts are in predetermined spatial relationship, at least not in a manner which would interfere with or influence or affect predetermined spatial relationship.

IPC Classes  ?

  • G01B 5/016 - Constructional details of contacts
  • G01B 11/00 - Measuring arrangements characterised by the use of optical techniques
  • B25J 9/00 - Programme-controlled manipulators
  • B25J 9/16 - Programme controls
  • B25J 13/08 - Controls for manipulators by means of sensing devices, e.g. viewing or touching devices
  • B23P 21/00 - Machines for assembling a multiplicity of different parts to compose units, with or without preceding or subsequent working of such parts, e.g. with programme control

42.

LOADING APPARATUS

      
Application Number 17631703
Status Pending
Filing Date 2020-08-03
First Publication Date 2022-08-25
Owner RENISHAW PLC (United Kingdom)
Inventor
  • Derrick, Hugo George
  • Hunter, Stephen Paul
  • Huntley, James Richard Philip

Abstract

A pallet loader for a positioning apparatus, including at least two pallet bays and at least one intermediate member, arranged such that at least two pallet bays are located on different sides of the intermediate member, such that at least one pallet can be driven i) from one pallet bay to another, and ii) from one pallet bay to a positioning apparatus, in which the apparatus includes cooperating guide features on the underside of the at least one pallet and on one or more of the intermediate member and pallet bays for guiding the pallet along a predetermined path and/or for controlling the rotational orientation of the pallet about a vertical axis, as the pallet moves across the intermediate member/pallet bay.

IPC Classes  ?

  • B65G 13/10 - Switching arrangements
  • B65G 47/54 - Devices for transferring articles or materials between conveyors, i.e. discharging or feeding devices between conveyors which cross one another at least one of which is a roller-way

43.

POWDER BED FUSION ADDITIVE MANUFACTURING METHODS AND APPARATUS

      
Application Number 17617365
Status Pending
Filing Date 2020-06-08
First Publication Date 2022-08-11
Owner RENISHAW PLC (United Kingdom)
Inventor
  • Wang, Xianglong
  • Shandiz, Mohammad Attarian
  • Lerma, Jose Alberto Muniz
  • Mata, Oscar Sanchez
  • Brochu, Mathieu

Abstract

A powder bed fusion additive manufacturing method includes forming layers of powder of a powder bed and exposing the layers to one or more energy beams to melt the powder to form an object. The exposure of each layer to the or each energy beam forms melt pools in a conduction or transition mode with an exposure distance between adjacent exposures within the layer being 40% to 60% of a width of the melt pools generated by the exposures and an offset of exposures between successively melted layers in a direction in which the exposure distance is measured being 40% to 60% of the exposure distance.

IPC Classes  ?

  • B22F 10/28 - Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
  • B33Y 10/00 - Processes of additive manufacturing
  • B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
  • B23K 26/342 - Build-up welding

44.

SPECTROSCOPIC APPARATUS AND METHODS FOR DETERMINING COMPONENTS PRESENT IN A SAMPLE

      
Application Number 17630599
Status Pending
Filing Date 2020-09-01
First Publication Date 2022-08-11
Owner RENISHAW PLC (United Kingdom)
Inventor
  • Smith, Brian John Edward
  • Bell, Ian Mac

Abstract

A method of determining components present in a sample from spectral data obtained from the sample including resolving each of a plurality of models of the spectral data, the plurality of models including models having a different number of component reference spectra selected from a set of predetermined component reference spectra; selecting a one of the plurality of models based upon a model selection criterion and determining one or more components present in the sample based upon the selected model. The model selection criterion includes a measure for each model, which balances improvements in fit quality of the model to the spectral data against a complexity penalty determined from the number of component reference spectrum used in the model.

IPC Classes  ?

45.

MACHINE CONTROL FOR ADDITIVE MANUFACTURING PROCESS AND APPARATUS

      
Application Number 17695137
Status Pending
Filing Date 2022-03-15
First Publication Date 2022-06-30
Owner RENISHAW PLC (United Kingdom)
Inventor
  • Revanur, Ramkumar
  • Brown, Ceri

Abstract

A method controls an additive manufacturing apparatus, in which an object is built by consolidating material in a layer-by-layer manner. The method includes receiving commands to be executed by the additive manufacturing apparatus to cause the additive manufacturing apparatus to carry out a build of an object, wherein each command includes an identifier identifying a time during the build at which the command is to be executed, and executing each command on the additive manufacturing apparatus in accordance with the time identified by the associated identifier. Further, an apparatus and a data carrier carry out the method.

IPC Classes  ?

  • B22F 10/30 - Process control
  • B33Y 50/02 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
  • G05B 19/4093 - Numerical control (NC), i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by part programming, e.g. entry of geometrical information as taken from a technical drawing, combining this with machining and material information to obtain control information, named part programme, for the NC machine
  • B22F 10/00 - Additive manufacturing of workpieces or articles from metallic powder
  • B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
  • B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
  • B29C 64/393 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
  • B29C 64/245 - Platforms or substrates
  • B29C 64/268 - Arrangements for irradiation using electron beams [EB]

46.

Calibration method and method of obtaining workpiece information

      
Application Number 17441071
Grant Number 11794299
Status In Force
Filing Date 2020-03-11
First Publication Date 2022-06-16
Grant Date 2023-10-24
Owner RENISHAW PLC (United Kingdom)
Inventor
  • Maxted, Paul
  • Hartley, James Arthur

Abstract

A method including: a) causing a tool mounted on a machine tool to work on a workpiece, and at least one sensor, which is configured to measure one or more aspects of the tool and/or machine tool, collecting sensor data during said working; b) a measurement device inspecting the part of the workpiece that was worked on at step a) to obtain measurement data; and c) calculating sensor-to-workpiece data calibration information from the sensor data and the measurement data.

IPC Classes  ?

  • B23Q 15/12 - Adaptive control, i.e. adjusting itself to have a performance which is optimum according to a preassigned criterion
  • G01B 5/012 - Contact-making feeler heads therefor
  • G01B 5/20 - Measuring arrangements characterised by the use of mechanical techniques for measuring contours or curvatures
  • G01B 5/28 - Measuring arrangements characterised by the use of mechanical techniques for measuring roughness or irregularity of surfaces

47.

ADDITIVE MANUFACTURING POWDER RECIRCULATION SYSTEM

      
Application Number 17600615
Status Pending
Filing Date 2020-04-29
First Publication Date 2022-06-09
Owner RENISHAW PLC (United Kingdom)
Inventor
  • Beeby, David Edward
  • Whitton, David John

Abstract

An additive manufacturing powder recirculation apparatus including: a powder recirculation loop having: an inlet for receiving powder from an additive manufacture apparatus; an outlet for supplying powder to the additive manufacture apparatus; and a powder flow path extending between the inlet and outlet. A diverter valve in the powder flow path is configured to selectively place the powder flow in fluid communication with either the downstream powder recirculation loop or a hopper outside of the powder recirculation loop.

IPC Classes  ?

  • B22F 10/73 - Recycling of powder
  • B22F 12/52 - Hoppers
  • B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
  • B33Y 40/00 - Auxiliary operations or equipment, e.g. for material handling

48.

Coordinate positioning machine

      
Application Number 17603040
Grant Number 11624603
Status In Force
Filing Date 2020-03-20
First Publication Date 2022-06-09
Grant Date 2023-04-11
Owner RENISHAW PLC (United Kingdom)
Inventor Angood, Stephen Mark

Abstract

A coordinate positioning machine includes a drive frame and a metrology frame. The drive frame includes a drive arrangement for moving a structure around a working volume of the machine. The metrology frame includes a metrology arrangement for measuring the position of the structure within the working volume. The metrology arrangement is a hexapod metrology arrangement and the drive arrangement is a non-hexapod drive arrangement. The metrology frame has a coefficient of thermal expansion that is lower than that of the drive frame. The drive frame is coupled to the metrology frame via a coupling arrangement which prevents at least some distortion associated with any extra thermal expansion and contraction of the drive frame from being transferred to the metrology frame. The drive arrangement moves the structure around the working volume, and the metrology arrangement measures the position of the structure within the working volume.

IPC Classes  ?

  • G01B 5/008 - Measuring arrangements characterised by the use of mechanical techniques for measuring coordinates of points using coordinate measuring machines
  • G01B 5/00 - Measuring arrangements characterised by the use of mechanical techniques
  • B25J 9/16 - Programme controls

49.

Measurement probe

      
Application Number 17552037
Grant Number 11885771
Status In Force
Filing Date 2021-12-15
First Publication Date 2022-06-09
Grant Date 2024-01-30
Owner RENISHAW PLC (United Kingdom)
Inventor Hall, Liam

Abstract

An ultrasound probe is described that comprises a transducer for transmitting and receiving ultrasound. The probe also includes a coupling element, such as a spherical ball of self-lubricating or hydrogel material, for contacting and acoustically coupling to an object to be inspected. The ultrasound probe also includes an analyser that is arranged to analyse the ultrasound signal received by the transducer and thereby determine if there is contact between the coupling element, and the surface of an object. The probe can thus be used for internal (ultrasound) inspection of objects as well as measuring the position of points on the surface of the object. The probe may be mountable to a coordinate measuring machine or other moveable platforms.

IPC Classes  ?

  • G01N 29/34 - Generating the ultrasonic, sonic or infrasonic waves
  • G01B 5/012 - Contact-making feeler heads therefor
  • G01N 29/28 - Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object - Details providing acoustic coupling
  • G01N 29/11 - Analysing solids by measuring attenuation of acoustic waves
  • G01B 17/02 - Measuring arrangements characterised by the use of infrasonic, sonic, or ultrasonic vibrations for measuring thickness
  • G01B 21/04 - Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness by measuring coordinates of points
  • A61B 8/00 - Diagnosis using ultrasonic, sonic or infrasonic waves
  • A61B 8/08 - Detecting organic movements or changes, e.g. tumours, cysts, swellings

50.

IMPROVEMENTS IN OR RELATING TO ON-AXIS MELT POOL SENSORS IN AN ADDITIVE MANUFACTURING APPARATUS

      
Application Number 17434311
Status Pending
Filing Date 2020-02-26
First Publication Date 2022-06-02
Owner RENISHAW PLC (United Kingdom)
Inventor
  • Dardis, John
  • Brown, Ceri
  • Mansell, Jonathan

Abstract

A method of aligning an on-axis melt pool sensor in an additive manufacturing apparatus. The method includes scanning a first laser beam along a first scan path across a working surface using a first optical train to generate a melt pool along the first scan path and scanning a field of view of an on-axis sensor along a second scan path across the working surface using a second optical train for steering a second laser beam. The first and second scan paths intersect. An adjustment to be made to an alignment of the field of view of the on-axis sensor with an optical axis of the second optical train is determined from a variation in the signal generated by the on-axis sensor as the field of view is scanned along the second scan path.

IPC Classes  ?

  • B22F 10/366 - Scanning parameters, e.g. hatch distance or scanning strategy
  • B22F 10/28 - Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
  • B22F 12/49 - Scanners
  • B22F 12/45 - Two or more
  • B22F 12/47 - Radiation means with translatory movement parallel to the deposition plane
  • B22F 10/85 - Data acquisition or data processing for controlling or regulating additive manufacturing processes
  • B33Y 50/02 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
  • B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
  • B33Y 10/00 - Processes of additive manufacturing

51.

ULTRASOUND METHOD AND APPARATUS

      
Application Number 17431406
Status Pending
Filing Date 2020-02-17
First Publication Date 2022-05-05
Owner RENISHAW PLC (United Kingdom)
Inventor
  • Hall, Liam David
  • Ding, Yining

Abstract

A method of calibrating an ultrasound probe having a coupling element for engaging the surface of an object to be inspected, in which the ultrasound probe and a calibration artefact are provided on a positioning apparatus having at least one axis about which the relative orientation of the ultrasound probe and calibration artefact can be changed, the method including, in any suitable order: i) for a plurality of different relative orientations between the ultrasound probe and the calibration artefact about the at least one axis, measuring the signal received by the ultrasound probe; and ii) from the measurements, determining at least one calibration parameter which is indicative of at least one axis of optimum signal of the ultrasound probe, and recording the at least one calibration parameter for subsequent use.

IPC Classes  ?

  • G01N 29/30 - Arrangements for calibrating or comparing, e.g. with standard objects
  • G01N 29/04 - Analysing solids
  • G01N 29/28 - Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object - Details providing acoustic coupling

52.

ADDITIVE MANUFACTURE

      
Application Number 17433581
Status Pending
Filing Date 2020-03-10
First Publication Date 2022-05-05
Owner RENISHAW PLC (United Kingdom)
Inventor
  • Mcfarland, Geoffrey
  • Wescott, Andrew David

Abstract

A method of powder bed fusion additive manufacture includes forming a component in a powder bed in a layer-by-layer process. The method may include sintering, without melting, selected regions of powder with an energy beam to form at least one support adjacent to the component; and melting further selected regions of the powder bed with an energy beam to form a component by layer-by-layer melting of material. The method may include directing an energy beam at selected regions of powder to form a friable support, the friable support including bonded powder which act as a solid and provide compressive support; and melting further regions of the powder bed with an energy beam to form a component by layer-by-layer melting of material.

IPC Classes  ?

  • B22F 10/28 - Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
  • B33Y 10/00 - Processes of additive manufacturing
  • B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
  • B23K 26/06 - Shaping the laser beam, e.g. by masks or multi-focusing
  • B23K 26/03 - Observing, e.g. monitoring, the workpiece
  • B23K 26/342 - Build-up welding

53.

Machine tool apparatus

      
Application Number 17528572
Grant Number 11674789
Status In Force
Filing Date 2021-11-17
First Publication Date 2022-03-10
Grant Date 2023-06-13
Owner RENISHAW PLC (United Kingdom)
Inventor
  • Styles, John Anthony
  • Taylor, Paul Anthony
  • Marshall, Derek

Abstract

A touch trigger probe interface for a machine tool is described that includes a probe communication portion for receiving probe event information from a touch trigger probe. A machine tool communication portion is also provided for outputting probe event information to a numerical controller of the machine tool. The machine tool communication portion outputs the probe event information as digital data packets, for example over a digital data bus. The digital data packets may include a time stamp and/or the touch trigger probe interface may receive timing information from the machine tool. A touch trigger probing system and a machine tool system including the probe interface are also described.

IPC Classes  ?

  • G01B 5/008 - Measuring arrangements characterised by the use of mechanical techniques for measuring coordinates of points using coordinate measuring machines
  • G01B 21/04 - Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness by measuring coordinates of points
  • G05B 19/402 - Numerical control (NC), i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by control arrangements for positioning, e.g. centring a tool relative to a hole in the workpiece, additional detection means to correct position

54.

Measurement device for a machine tool

      
Application Number 17420211
Grant Number 11897067
Status In Force
Filing Date 2020-01-24
First Publication Date 2022-03-03
Grant Date 2024-02-13
Owner RENISHAW PLC (United Kingdom)
Inventor Marshall, Derek

Abstract

A hard-wired measurement device is mountable within an enclosure of a computer-controlled machine tool. The device includes a measurement sensor for measuring objects, such as tools, within the machine tool enclosure and a hard-wired interface module for providing an electrical connection via one or more wires with an associated external interface located outside of the machine tool enclosure. The device further includes a wireless communications module that enables wireless communication with an associated wireless device, such as a spindle probe, located within the machine tool enclosure.

IPC Classes  ?

  • B23Q 17/09 - Arrangements for indicating or measuring on machine tools for indicating or measuring cutting pressure or cutting-tool condition, e.g. cutting ability, load on tool

55.

MANUFACTURING SYSTEM AND METHOD

      
Application Number 17413251
Status Pending
Filing Date 2019-12-16
First Publication Date 2022-02-17
Owner RENISHAW PLC (United Kingdom)
Inventor Jonas, Kevyn Barry

Abstract

A manufacturing system includes: a coordinate positioning machine having a structure moveable within a working volume of the machine, a drive arrangement for moving the structure around the working volume, and a positioning arrangement for determining the position of the structure within the working volume with a first accuracy; and a metrology arrangement to which the machine is removably couplable, such that when the machine is coupled to the metrology arrangement, with the structure being moved by the drive arrangement, the metrology arrangement is able to measure the position of the structure with a second accuracy that is higher than the first accuracy.

IPC Classes  ?

  • B25J 11/00 - Manipulators not otherwise provided for
  • B25J 9/16 - Programme controls
  • B25J 9/06 - Programme-controlled manipulators characterised by multi-articulated arms
  • B25J 15/00 - Gripping heads
  • B25J 15/04 - Gripping heads with provision for the remote detachment or exchange of the head or parts thereof
  • B25J 13/08 - Controls for manipulators by means of sensing devices, e.g. viewing or touching devices

56.

Neurosurgical apparatus

      
Application Number 17509681
Grant Number 11559371
Status In Force
Filing Date 2021-10-25
First Publication Date 2022-02-10
Grant Date 2023-01-24
Owner RENISHAW PLC (United Kingdom)
Inventor
  • Gill, Steven Streatfield
  • Fielder, Paul
  • Woolley, Maxwell Roy

Abstract

Neurosurgical apparatus has a guidance device having a guide tube and a neurosurgical instrument for insertion into the guide tube. The inner surface of the guide tube is arranged, for example profiled, to at least partially engage the outer surface of the neurosurgical instrument when inserted therein. The guide tube thus guides the neurosurgical instrument along a predefined path through the guide tube. At least one of the guidance device and the outer surface of the neurosurgical instrument are configured to provide a fluid return path for carrying any fluid displaced from within the guide tube during insertion of the neurosurgical instrument into the guide tube. A seal may also be provided for sealing the fluid return path.

IPC Classes  ?

  • A61B 90/11 - Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups , e.g. for luxation treatment or for protecting wound edges for stereotaxic surgery, e.g. frame-based stereotaxis with guides for needles or instruments, e.g. arcuate slides or ball joints
  • A61M 25/06 - Body-piercing guide needles or the like
  • A61M 25/00 - Catheters; Hollow probes
  • A61M 39/02 - Access sites
  • A61B 17/34 - Trocars; Puncturing needles
  • A61B 90/10 - Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups , e.g. for luxation treatment or for protecting wound edges for stereotaxic surgery, e.g. frame-based stereotaxis
  • A61M 25/02 - Holding devices, e.g. on the body

57.

ENCODER APPARATUS

      
Application Number 17296933
Status Pending
Filing Date 2019-12-03
First Publication Date 2022-01-27
Owner RENISHAW PLC (United Kingdom)
Inventor
  • Howley, Colin Keith
  • Mcadam, Simon Eliot
  • Whiting, Adam Michael

Abstract

An incremental encoder apparatus including: a scale including a series of periodic features defining an optical incremental scale, and at least one magnetic reference mark; and a readhead. The readhead includes at least one incremental sensor configured to detect light from the optical incremental scale and to output at least one signal dependent thereon, and at least two analogue Hall sensors, each including at least two output terminal pairs, and each configured to switch repeatedly between each output terminal pair so as to reduce any inherent offset in the output of the analogue Hall sensor. The apparatus is configured to determine the presence of the reference mark from the outputs of the at least two analogue Hall sensors.

IPC Classes  ?

  • G01D 5/14 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
  • G01D 5/245 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means generating pulses or pulse trains using a variable number of pulses in a train

58.

ADDITIVE MANUFACTURING

      
Application Number 17289184
Status Pending
Filing Date 2019-11-12
First Publication Date 2021-12-23
Owner RENISHAW PLC (United Kingdom)
Inventor
  • Jones, Kiera Megan
  • Scully, Paul Martin

Abstract

A computer implemented method including receiving first sensor data from a first sensor monitoring an additive manufacturing process, the first sensor data including a plurality of first sensor values; receiving second sensor data from a second sensor monitoring the additive manufacturing process, the second sensor data including a plurality of second sensor values. Each first sensor value and each second sensor value is associated with a corresponding time during the additive manufacturing process at which the sensor value was generated. Analysing the first and second sensor data to identify a first and second anomalous event that occurred in the additive manufacturing process and a corresponding first and second anomalous event time. Identifying whether the first anomalous event is a potential cause of second anomalous event based upon the anomalous event times. Generating an output based upon identification that the first anomalous event is a potential cause of second anomalous event.

IPC Classes  ?

  • B22F 10/85 - Data acquisition or data processing for controlling or regulating additive manufacturing processes
  • B22F 12/90 - Means for process control, e.g. cameras or sensors
  • B33Y 10/00 - Processes of additive manufacturing
  • B33Y 50/02 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes

59.

Powder bed fusion apparatus and methods

      
Application Number 17407917
Grant Number 11691342
Status In Force
Filing Date 2021-08-20
First Publication Date 2021-12-09
Grant Date 2023-07-04
Owner RENISHAW PLC (United Kingdom)
Inventor
  • Mcmurtry, David Roberts
  • Sutcliffe, Christopher John
  • Weston, Robin Geoffrey
  • Campton, Paul
  • Whitton, David John
  • Beeby, David

Abstract

A powder bed fusion apparatus for building an object in a layer-by-layer manner includes a build platform movable within a build sleeve to define a build volume, a layer formation device for forming layers of powder across the build volume in a working plane and an irradiation device for irradiating powder in the working plane to selectively fuse the powder. The powder bed fusion apparatus further includes a mechanical manipulator arranged to engage with the object and/or a build substrate, to which the object is attached, to tilt the object in a raised position above the working plane such that powder is freed from the object and deposited at a location above the working plane and/or into the build volume.

IPC Classes  ?

  • B29C 64/209 - Heads; Nozzles
  • B29C 64/321 - Feeding
  • B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
  • B33Y 40/00 - Auxiliary operations or equipment, e.g. for material handling
  • B29C 64/245 - Platforms or substrates
  • B29C 64/241 - Driving means for rotary motion
  • B29C 64/268 - Arrangements for irradiation using electron beams [EB]
  • B29C 64/205 - Means for applying layers
  • B29C 64/371 - Conditioning of environment using an environment other than air, e.g. inert gas
  • B22F 10/28 - Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
  • B22F 10/73 - Recycling of powder
  • B22F 12/88 - Handling of additively manufactured products, e.g. by robots
  • B22F 10/68 - Cleaning or washing
  • B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
  • B22F 12/33 - Platforms or substrates translatory in the deposition plane
  • B22F 12/80 - Plants, production lines or modules
  • B22F 12/30 - Platforms or substrates
  • B22F 12/82 - Combination of additive manufacturing apparatus or devices with other processing apparatus or devices
  • B22F 12/37 - Rotatable
  • B22F 10/32 - Process control of the atmosphere, e.g. composition or pressure in a building chamber

60.

MEASUREMENT APPARATUS AND METHOD

      
Application Number 17431947
Status Pending
Filing Date 2020-03-11
First Publication Date 2021-12-09
Owner RENISHAW PLC (United Kingdom)
Inventor
  • Merrifield, Benjamin Jason
  • Ferguson, Graham Richard

Abstract

A measurement apparatus for mounting within an enclosure of a machine is described. The apparatus includes a measurement device and a protection means for protecting the measurement device from contaminants present within the machine enclosure. The protection means is switchable between at least a first mode that protects the measurement device from contaminants and a second mode that provides less protection of the measurement device from contaminants than the first mode. A contaminant sensor is used for sensing contamination within the machine enclosure and thereby determining when the protection means can adopt the second mode. A corresponding method is also described.

IPC Classes  ?

  • G01D 11/24 - Housings
  • G01N 21/94 - Investigating contamination, e.g. dust
  • G01N 21/15 - Preventing contamination of the components of the optical system or obstruction of the light path
  • G01D 11/26 - Windows; Cover glasses; Sealings therefor
  • G01N 21/954 - Inspecting the inner surface of hollow bodies, e.g. bores

61.

TOOL MEASUREMENT DEVICE FOR A MACHINE TOOL

      
Application Number 17432014
Status Pending
Filing Date 2020-03-11
First Publication Date 2021-12-09
Owner RENISHAW PLC (United Kingdom)
Inventor
  • Ferguson, Graham Richard
  • Tocknell, Stephen Lindsey

Abstract

An optical tool measurement device for a machine tool is described. The device includes a light source for directing light towards a tool-sensing region and a sensor for detecting light from the tool-sensing region. A shutter assembly for selectively protecting the sensor from contamination is also provided. The shutter assembly is to provide a closed configuration in which the sensor is covered by the shutter assembly thereby preventing contamination of the sensor and an open configuration in which light can pass to the sensor through a first aperture of the shutter assembly. Furthermore, the shutter assembly is configured to additionally provide a constricted configuration in which light can pass to the sensor through a second aperture of the shutter assembly, the second aperture being smaller than the first aperture. In this manner, the device has enhanced resistance to contaminants, such as swarf and coolant, present in the machine tool environment.

IPC Classes  ?

  • H04N 5/225 - Television cameras
  • B23Q 17/00 - Arrangements for indicating or measuring on machine tools
  • H04N 5/235 - Circuitry for compensating for variation in the brightness of the object

62.

Selective laser solidification apparatus and method

      
Application Number 17386695
Grant Number 11752694
Status In Force
Filing Date 2021-07-28
First Publication Date 2021-11-18
Grant Date 2023-09-12
Owner RENISHAW PLC (United Kingdom)
Inventor Ferrar, Ben Ian

Abstract

A method of selecting a scanning sequence of a laser beam in a selective laser solidification process, in which one or more objects are formed layer-by-layer by repeatedly depositing a layer of powder on a powder bed and scanning the laser beam over the deposited powder to selectively solidify at least part of the powder layers, includes determining an order in which areas should be scanned by: projecting a debris fallout zone that would be created when solidifying each area based on a gas flow direction of a gas flow passed over the powder bed; determining whether one or more other areas to be solidified fall within the debris fallout zone; and selecting to solidify the one or more other areas that fall within the debris fallout zone before solidifying the area from which the debris fallout zone has been projected.

IPC Classes  ?

  • B22F 3/10 - Sintering only
  • B29C 64/182 - Processes of additive manufacturing specially adapted for manufacturing multiple 3D objects in parallel batches
  • B33Y 10/00 - Processes of additive manufacturing
  • B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
  • B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
  • B29C 64/268 - Arrangements for irradiation using electron beams [EB]
  • B29C 64/364 - Conditioning of environment
  • B29C 64/20 - Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering - Details thereof or accessories therefor
  • B22F 10/28 - Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
  • B22F 10/322 - Process control of the atmosphere, e.g. composition or pressure in a building chamber of the gas flow, e.g. rate or direction
  • B33Y 50/02 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
  • B23K 26/342 - Build-up welding
  • B29C 64/386 - Data acquisition or data processing for additive manufacturing
  • B22F 10/32 - Process control of the atmosphere, e.g. composition or pressure in a building chamber
  • B22F 10/00 - Additive manufacturing of workpieces or articles from metallic powder
  • B22F 12/70 - Gas flow means
  • B22F 10/80 - Data acquisition or data processing
  • B22F 10/30 - Process control

63.

Non-contact tool measurement apparatus

      
Application Number 17274728
Grant Number 11511384
Status In Force
Filing Date 2019-10-07
First Publication Date 2021-11-11
Grant Date 2022-11-29
Owner RENISHAW PLC (United Kingdom)
Inventor
  • Cluff, Julian Alexander
  • Ferguson, Graham Richard
  • Leafe, Harry Alan
  • Lee, William Ernest

Abstract

A non-contact tool measurement apparatus is used in a machine tool environment. The apparatus includes a transmitter including a first aperture and a laser for generating light that is emitted from the transmitter through the first aperture towards a tool-sensing region. A receiver includes an optical detector and is arranged to receive light from the tool-sensing region. A processor analyses the light detected by the optical detector to enable the measurement of tools in the tool-sensing region. The laser is capable of generating light having a wavelength of less than 590 nm thereby enabling the size of the first aperture to be reduced resulting in a reduction in contaminant ingress. In one embodiment, the laser generates blue light.

IPC Classes  ?

  • G01V 8/12 - Detecting, e.g. by using light barriers using one transmitter and one receiver
  • B23Q 17/24 - Arrangements for indicating or measuring on machine tools using optics
  • G01B 11/02 - Measuring arrangements characterised by the use of optical techniques for measuring length, width, or thickness

64.

Spectroscopic apparatus and methods

      
Application Number 17277895
Grant Number 11927536
Status In Force
Filing Date 2019-10-17
First Publication Date 2021-11-11
Grant Date 2024-03-12
Owner RENISHAW PLC (United Kingdom)
Inventor Smith, Brian John Edward

Abstract

A method of smoothing spectral data recorded by a spectrometer including successively fitting a plurality of spline curves to the spectral data, each spline curve having a different number of knots. A knot position of each knot, other than end point knots, in each spline curve is determined based upon a measure of fit of points of a previously fitted one of the spline curves having fewer knots to the spectral data. The method further includes selecting one of the spline curves as a smoothed data curve of the spectral data based upon a model selection criterion.

IPC Classes  ?

65.

POWDER BED FUSION APPARATUS AND METHODS

      
Application Number 17263356
Status Pending
Filing Date 2019-09-10
First Publication Date 2021-10-07
Owner RENISHAW PLC (United Kingdom)
Inventor
  • Brown, Ceri
  • Curtis, Daniel John

Abstract

A method of filtering gas in a powder bed fusion apparatus, wherein an object is built layer-by-layer by selective solidification of a powder bed, and a powder bed fusion apparatus for executing the method. The apparatus includes a build chamber housing the powder bed, a gas circuit for recirculating the gas, including passing the gas over the powder bed within the build chamber, multiple filter assemblies in the gas circuit for filtering process emissions from the recirculated gas and a valve system regulating gas flow to each filter assembly. The method may include controlling the valve system to divide the gas flow between the filter assemblies. The method includes controlling the valve system such that a first one of the filter assemblies is connected with at least one second one of the filter assemblies such that the gas passes through the filter elements of both filter assemblies.

IPC Classes  ?

  • B22F 12/70 - Gas flow means
  • B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
  • B33Y 40/00 - Auxiliary operations or equipment, e.g. for material handling
  • B01D 46/00 - Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
  • B01D 46/44 - Auxiliary equipment or operation thereof controlling filtration
  • B01D 46/24 - Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
  • B01D 46/42 - Auxiliary equipment or operation thereof
  • B23K 26/342 - Build-up welding
  • B23K 26/144 - Working by laser beam, e.g. welding, cutting or boring using a fluid stream, e.g. a jet of gas, in conjunction with the laser beam; Nozzles therefor the fluid stream containing particles, e.g. powder

66.

SELECTIVE SOLIDIFICATION APPARATUS AND METHODS

      
Application Number 17227514
Status Pending
Filing Date 2021-04-12
First Publication Date 2021-09-30
Owner RENISHAW PLC (United Kingdom)
Inventor
  • Brown, Ceri
  • Mcfarland, Geoffrey

Abstract

A selective solidification apparatus includes a build chamber, a build platform lowerable in the build chamber, a wiper for spreading powder material across the build platform to form successive powder layers of a powder bed, an energy beam unit for generating an energy beam for consolidating the powder material, a scanner for directing and focussing the energy beam onto each powder layer and a processor for controlling the scanner. The processor is arranged to control the scanner to scan the energy beam across the powder bed to consolidate powder material either side of the wiper when the wiper is moving across the powder bed and to scan the energy beam across at least one of the powder layers during two or more strokes of the wiper across the powder bed.

IPC Classes  ?

  • B22F 12/00 - Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
  • B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
  • B22F 10/00 - Additive manufacturing of workpieces or articles from metallic powder

67.

Method and apparatus for measurement cycle generation

      
Application Number 17261906
Grant Number 11435180
Status In Force
Filing Date 2019-08-12
First Publication Date 2021-09-16
Grant Date 2022-09-06
Owner RENISHAW PLC (United Kingdom)
Inventor Summers, Martin Peter

Abstract

A method for generating a measurement cycle for inspecting an object using a measurement probe carried by a coordinate positioning apparatus, computer program and apparatus, wherein the measurement cycle includes a measurement path where the measurement probe moves relative to the object enabling inspection of the object using a series of touch trigger measurements. The method includes defining multiple touch trigger measurement points on the surface of the object. Each of the touch trigger measurement points has an associated stand-off position from which the measurement probe accelerates towards the touch trigger measurement point wherein the touch trigger measurement points separate from the associated stand-off position by a stand-off distance The method further includes defining different stand-off distances for at least some of the touch trigger measurement points and calculating a probing feed-rate for use when acquiring each touch trigger measurement point based on the stand-off distance associated therewith.

IPC Classes  ?

  • G01B 5/008 - Measuring arrangements characterised by the use of mechanical techniques for measuring coordinates of points using coordinate measuring machines
  • G01B 21/04 - Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness by measuring coordinates of points

68.

Position measurement encoder and method of operation

      
Application Number 17211983
Grant Number 11619521
Status In Force
Filing Date 2021-03-25
First Publication Date 2021-09-09
Grant Date 2023-04-04
Owner RENISHAW PLC (United Kingdom)
Inventor Gribble, Andrew Paul

Abstract

A method of operating a position encoder apparatus, including a scale having features defining position information and a readhead for reading the scale. The method includes: calculating extrapolated position information from at least one previous reading of the scale; comparing an extrapolated position with a position calculated from a reading of the scale to determine any discrepancy between them; using the extrapolated position information whether or not there is a discrepancy; and maintaining a record of any discrepancies.

IPC Classes  ?

  • G01D 5/244 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means generating pulses or pulse trains
  • G01D 5/347 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using optical means, i.e. using infrared, visible or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells using displacement encoding scales
  • G01D 5/245 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means generating pulses or pulse trains using a variable number of pulses in a train

69.

Acoustic emission sensing in powder bed additive manufacturing

      
Application Number 16973333
Grant Number 11867663
Status In Force
Filing Date 2019-06-26
First Publication Date 2021-08-12
Grant Date 2024-01-09
Owner RENISHAW PLC (United Kingdom)
Inventor
  • Northeast, Damon Mark
  • Mansell, Jonathan
  • Jones, Nicholas Henry Hannaford

Abstract

A powder bed additive manufacturing apparatus includes a build sleeve, a build platform for supporting a powder bed and object during a build, the build platform lowerable in the build sleeve, and at least one acoustic sensing system. The acoustic sensing system includes an acoustic emission sensor and an acoustic waveguide. The acoustic waveguide extends through the build platform such that a receiving end of the acoustic waveguide distal from the acoustic emission sensor abuts a surface of a build substrate removable mounted to the build platform to transmit structure-borne acoustic waves from the build substrate to the acoustic emission sensor.

IPC Classes  ?

  • G01N 29/14 - Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object using acoustic emission techniques
  • B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
  • B22F 10/28 - Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
  • B33Y 50/02 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
  • B22F 10/31 - Calibration of process steps or apparatus settings, e.g. before or during manufacturing
  • B22F 10/85 - Data acquisition or data processing for controlling or regulating additive manufacturing processes
  • B22F 12/00 - Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
  • B22F 12/30 - Platforms or substrates
  • B22F 12/70 - Gas flow means
  • B22F 10/40 - Structures for supporting workpieces or articles during manufacture and removed afterwards
  • B22F 12/90 - Means for process control, e.g. cameras or sensors
  • B22F 12/45 - Two or more

70.

LASER BEAM SCANNER

      
Application Number 17050630
Status Pending
Filing Date 2019-05-15
First Publication Date 2021-07-29
Owner RENISHAW PLC (United Kingdom)
Inventor
  • Weston, Nicholas John
  • Mcfarland, Geoffrey

Abstract

A laser beam scanner including a laser beams positioning optic, a plurality of optical fibres for delivering a plurality of laser beams and a fibre termination optic aligned to direct the laser beams from output ends of the plurality of optical fibres to the laser beams positioning optic. The laser beams positioning optic is movable relative to the fibre termination optic to scan the laser beams across a working surface.

IPC Classes  ?

  • B23K 26/082 - Scanning systems, i.e. devices involving movement of the laser beam relative to the laser head
  • B29C 64/135 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified characterised by the energy source therefor, e.g. by global irradiation combined with a mask the energy source being concentrated, e.g. scanning lasers or focused light sources
  • B23K 26/042 - Automatically aligning the laser beam

71.

POWDER BED FUSION APPARATUS

      
Application Number 16755870
Status Pending
Filing Date 2018-10-19
First Publication Date 2021-07-08
Owner RENISHAW PLC (United Kingdom)
Inventor
  • Beeby, David Edward
  • Whitton, David John
  • Critchley, Andrew Thomas

Abstract

A powder bed fusion apparatus including a build chamber, a build platform in the build chamber for supporting a powder bed, a layer formation device for forming layers of powder to form the powder bed, a scanner for scanning an energy beam across the powder bed to fuse the powder and a gas circuit for forming a gas flow across the powder bed. The gas circuit includes a separator for separating particles from gas in the gas circuit, a nozzle for propelling gas into the build chamber and an exhaust for extracting gas from the build chamber and delivering the gas to the separator. The exhaust includes an exhaust channel or opening located for receiving powder wiped from the powder bed and/or build platform.

IPC Classes  ?

  • B23K 26/342 - Build-up welding
  • B23K 26/04 - Automatically aligning, aiming or focusing the laser beam, e.g. using the back-scattered light
  • B23K 26/082 - Scanning systems, i.e. devices involving movement of the laser beam relative to the laser head
  • B23K 26/12 - Working by laser beam, e.g. welding, cutting or boring in a special environment or atmosphere, e.g. in an enclosure
  • B23K 26/144 - Working by laser beam, e.g. welding, cutting or boring using a fluid stream, e.g. a jet of gas, in conjunction with the laser beam; Nozzles therefor the fluid stream containing particles, e.g. powder
  • B23K 26/14 - Working by laser beam, e.g. welding, cutting or boring using a fluid stream, e.g. a jet of gas, in conjunction with the laser beam; Nozzles therefor
  • B23K 26/16 - Removal of by-products, e.g. particles or vapours produced during treatment of a workpiece
  • B23K 26/70 - Auxiliary operations or equipment
  • B22F 10/28 - Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
  • B22F 12/70 - Gas flow means
  • B22F 10/73 - Recycling of powder
  • B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
  • B33Y 40/00 - Auxiliary operations or equipment, e.g. for material handling

72.

Encoder

      
Application Number 17205505
Grant Number 11549828
Status In Force
Filing Date 2021-03-18
First Publication Date 2021-07-08
Grant Date 2023-01-10
Owner RENISHAW PLC (United Kingdom)
Inventor
  • Evans, Finlay Jonathan
  • Henshaw, James Reynolds
  • Tocknell, Stephen Lindsey
  • Gearing, Richard David James

Abstract

A sealed encoder module for mounting onto a machine so as to measure relative displacement of first and second parts of the machine. The sealed encoder module can comprise, a scale, a readhead comprising a scale signal receiver, and an integral protective housing which encapsulates at least the scale and said scale signal receiver. The sealed encoder module can be configured to determine and output diagnostic information regarding a scale signal detected by the readhead.

IPC Classes  ?

  • G01D 5/34 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using optical means, i.e. using infrared, visible or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
  • G01D 5/347 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using optical means, i.e. using infrared, visible or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells using displacement encoding scales

73.

Measurement method and apparatus

      
Application Number 17059780
Grant Number 11846497
Status In Force
Filing Date 2019-06-10
First Publication Date 2021-07-08
Grant Date 2023-12-19
Owner RENISHAW PLC (United Kingdom)
Inventor
  • Ould, John Charles
  • Handford, Thomas Phillip

Abstract

Method for measuring an object using a scanning probe carried by a machine tool having a probe holder for the scanning probe and a carrier for the object. The method includes (i) using the machine tool to move the probe holder relative to the carrier along a pre-programmed scan path, (ii) measuring acceleration whilst the pre-programmed scan path is traversed, (iii) collecting probe data whilst the pre-programmed scan path is traversed, and (iv) using the acceleration measured to identify at least one acceleration zone of the pre-programmed scan path and thereby determine one or more positions along the scan path at which the probe data of step (iii) were collected.

IPC Classes  ?

  • G01B 5/016 - Constructional details of contacts
  • G01P 15/18 - Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration in two or more dimensions
  • G01P 1/00 - MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION OR SHOCK; INDICATING PRESENCE OR ABSENCE OF MOVEMENT;  INDICATING DIRECTION OF MOVEMENT  - Details of instruments

74.

MEASUREMENT DEVICE

      
Application Number 17265877
Status Pending
Filing Date 2019-09-10
First Publication Date 2021-07-01
Owner RENISHAW PLC (United Kingdom)
Inventor Mckendrick, Alexander David

Abstract

An incremental measurement encoder including a scale and a readhead. The scale includes a periodic series of features forming an incremental track and at least one reference mark. The readhead including a structured light source and a reference mark photodetector array. The at least one reference mark can include at least one imaging element configured to form an image of the structured light source onto the reference mark photodetector array.

IPC Classes  ?

  • G01D 5/245 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means generating pulses or pulse trains using a variable number of pulses in a train
  • G01D 5/347 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using optical means, i.e. using infrared, visible or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells using displacement encoding scales

75.

Coordinate positioning machine

      
Application Number 17195158
Grant Number 11673256
Status In Force
Filing Date 2021-03-08
First Publication Date 2021-06-24
Grant Date 2023-06-13
Owner RENISHAW PLC (United Kingdom)
Inventor Angood, Stephen Mark

Abstract

A coordinate positioning machine that includes: a structure moveable within a working volume of the machine, a hexapod metrology arrangement for measuring the position of the structure within the working volume, and a non-hexapod drive arrangement for moving the structure around the working volume. Also, a coordinate positioning machine including a structure moveable within a working volume of the machine, a drive arrangement for moving the structure around the working volume in fewer than six degrees of freedom, and a metrology arrangement for measuring the position of the structure within the working volume in more degrees of freedom than the drive arrangement.

IPC Classes  ?

  • G01B 5/008 - Measuring arrangements characterised by the use of mechanical techniques for measuring coordinates of points using coordinate measuring machines
  • B25J 9/02 - Programme-controlled manipulators characterised by movement of the arms, e.g. cartesian co-ordinate type
  • B25J 9/00 - Programme-controlled manipulators
  • B25J 9/16 - Programme controls
  • B25J 17/02 - Wrist joints

76.

Laser processing

      
Application Number 16635808
Grant Number 11794281
Status In Force
Filing Date 2018-08-08
First Publication Date 2021-05-06
Grant Date 2023-10-24
Owner RENISHAW PLC (United Kingdom)
Inventor Thomson, Ian James

Abstract

A method of laser processing including generating a laser beam having, at different longitudinal positions in a propagation direction, first and second transverse beam profiles of energy density. The first transverse beam profile is different to the second transverse beam profile and is non-Gaussian. The method includes carrying out a scan of the laser beam across a working surface, wherein, during the scan, the laser beam and/or working surface is adjusted such that, for a first part of the scan, the first transverse beam profile is located at the working surface and, for a second part of the scan, the second transverse beam profile is located at the working surface.

IPC Classes  ?

  • B23K 26/342 - Build-up welding
  • B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
  • B23K 26/06 - Shaping the laser beam, e.g. by masks or multi-focusing
  • B23K 26/34 - Laser welding for purposes other than joining
  • B22F 10/28 - Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
  • B22F 12/49 - Scanners
  • B33Y 10/00 - Processes of additive manufacturing
  • B22F 10/36 - Process control of energy beam parameters
  • B22F 10/366 - Scanning parameters, e.g. hatch distance or scanning strategy
  • B23K 26/082 - Scanning systems, i.e. devices involving movement of the laser beam relative to the laser head
  • B29C 64/393 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
  • B29C 64/286 - Optical filters, e.g. masks
  • B29C 64/268 - Arrangements for irradiation using electron beams [EB]
  • B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
  • B33Y 50/02 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes

77.

Production and measurement of workpieces

      
Application Number 16768756
Grant Number 11385630
Status In Force
Filing Date 2018-12-12
First Publication Date 2021-04-22
Grant Date 2022-07-12
Owner RENISHAW PLC (United Kingdom)
Inventor Jonas, Kevyn Barry

Abstract

A method of producing a workpiece which is successively loaded onto two or more machine tools and one or more machining operations are performed to produce one or more features of the workpiece on each machine tool. After the machining operations on both or all of the machine tools, the workpiece is passed to a common dimensional inspection station. At the common dimensional inspection station, dimensions of the features of the workpiece produced by the machining operations on the two or more machine tools are measured. Based on the results of measuring the dimensions of the features, two or more output signals are produced which respectively relate to the performance of the two or more machine tools which performed the machining operations. Each of the output signals is fed back to the machine tool which performed the respective operation, to adjust the production process of each corresponding machine tool.

IPC Classes  ?

  • G05B 19/418 - Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control (DNC), flexible manufacturing systems (FMS), integrated manufacturing systems (IMS), computer integrated manufacturing (CIM)
  • G01B 21/00 - Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant

78.

ADDITIVE MANUFACTURING APPARATUS AND METHOD

      
Application Number 17079652
Status Pending
Filing Date 2020-10-26
First Publication Date 2021-02-11
Owner RENISHAW PLC (United Kingdom)
Inventor
  • Ashton, Ian Robert Thomas
  • Kloss, Stephan
  • Sutcliffe, Christopher
  • Ferrar, Ben Ian

Abstract

This invention concerns a laser solidification apparatus for building objects by layerwise solidification of powder material. The apparatus including a build chamber containing a build platform, a device for depositing layers of powder material on to the build platform, an optical unit for directing a laser beam to selectively solidify areas of each powder layer and a spectrometer for detecting characteristic radiation emitted by plasma formed during solidification of the powder by the laser beam. The invention also relates to a spectrometer for detecting characteristic radiation generated by interaction of the metal with the or a further laser beam. The spectra recorded using the spectrometer may be used for feedback control during the solidification process.

IPC Classes  ?

  • B22F 3/105 - Sintering only by using electric current, laser radiation or plasma
  • G01N 21/71 - Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light thermally excited
  • G01N 21/27 - Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands using photo-electric detection
  • G01J 3/28 - Investigating the spectrum
  • B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
  • B29C 64/268 - Arrangements for irradiation using electron beams [EB]

79.

Coordinate positioning machine

      
Application Number 16967043
Grant Number 11964394
Status In Force
Filing Date 2019-02-25
First Publication Date 2021-02-11
Grant Date 2024-04-23
Owner RENISHAW PLC (United Kingdom)
Inventor Duprez, Julius

Abstract

A method of calibrating a coordinate positioning machine is described. The machine is controlled into a pivot pose in which a target point associated with a moveable part of the machine and a pivot point associated with a fixed part of the machine are separated from one another by a known separation. An error value for that pose is determined based on the known separation and a separation expected for that pose from the existing model parameters of the machine. The machine is controlled into a plurality of different target poses, and for each target pose a separation between the target point and the pivot point is measured and an error value for that pose is determined based on the measured separation and a separation expected for that pose from the existing model parameters.

IPC Classes  ?

  • B25J 9/16 - Programme controls
  • G05B 19/402 - Numerical control (NC), i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by control arrangements for positioning, e.g. centring a tool relative to a hole in the workpiece, additional detection means to correct position

80.

Surface finish stylus

      
Application Number 17041864
Grant Number 11326869
Status In Force
Filing Date 2019-04-23
First Publication Date 2021-02-04
Grant Date 2022-05-10
Owner RENISHAW PLC (United Kingdom)
Inventor
  • Lummes, Stephen Edward
  • Holmes, Mark James Andrew

Abstract

A surface finish stylus and associated methods for a multi-directional scanning probe the stylus having an elongate stylus shaft having a longitudinal axis and one or more contact elements protruding from the elongate shaft for contacting a surface to be measured. The one or more contact elements are configured to enable measurement of surface finish during motion of the stylus shaft relative to a surface along a measurement direction that is non-parallel to the longitudinal axis. The multi-directional scanning probe may be carried by a coordinate measuring machine or machine tool.

IPC Classes  ?

  • G01B 7/34 - Measuring arrangements characterised by the use of electric or magnetic techniques for measuring roughness or irregularity of surfaces
  • G01B 21/04 - Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness by measuring coordinates of points

81.

Selective laser solidification apparatus and method

      
Application Number 17046537
Grant Number 11559941
Status In Force
Filing Date 2019-04-29
First Publication Date 2021-02-04
Grant Date 2023-01-24
Owner RENISHAW PLC (United Kingdom)
Inventor
  • Aswathanarayanaswamy, Ravi
  • Saunders, Marc Thomas Berkeley

Abstract

A method of selecting a scanning sequence of a laser beam in a selective laser solidification process, in which one or more objects are formed layer-by-layer by, repeatedly, depositing a layer of powder on a powder bed and scanning a plurality of laser beams over the deposited powder to selectively solidify the powder layers, wherein a gas flow is passed over the powder bed in a gas flow direction. The method including selecting a scanning sequence for the plurality of laser beams to include the simultaneous exposure of an upstream point together with a downstream point located downstream of a flow of debris carried from the upstream point by the gas flow, the downstream and upstream points selected for simultaneous exposure based upon the downstream point being within a maximum separation distance from the upstream point.

IPC Classes  ?

  • B29C 64/393 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
  • B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
  • B33Y 10/00 - Processes of additive manufacturing
  • B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
  • B33Y 50/02 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
  • B29C 64/255 - Enclosures for the building material, e.g. powder containers
  • B29C 64/268 - Arrangements for irradiation using electron beams [EB]

82.

Coordinate positioning machine

      
Application Number 17066054
Grant Number 11300396
Status In Force
Filing Date 2020-10-08
First Publication Date 2021-02-04
Grant Date 2022-04-12
Owner RENISHAW PLC (United Kingdom)
Inventor Angood, Stephen Mark

Abstract

A non-Cartesian coordinate positioning machine that includes an extendable leg assembly for positioning a component such as a measurement probe within a working volume of the machine. The extendable leg assembly includes a first member and a second member which move relative to one another when the extendable leg assembly changes length. The first member including an axial arrangement of magnets forming part of a linear motor for extending and retracting the extendable leg assembly, and at least one resilient member for absorbing at least some of any axial thermal expansion or contraction of the magnets in use.

IPC Classes  ?

  • G01B 5/008 - Measuring arrangements characterised by the use of mechanical techniques for measuring coordinates of points using coordinate measuring machines
  • G01B 5/00 - Measuring arrangements characterised by the use of mechanical techniques
  • B25J 9/00 - Programme-controlled manipulators
  • B25J 9/12 - Programme-controlled manipulators characterised by positioning means for manipulator elements electric
  • B25J 19/00 - Accessories fitted to manipulators, e.g. for monitoring, for viewing; Safety devices combined with or specially adapted for use in connection with manipulators

83.

SURFACE FINISH STYLUS

      
Application Number 17044356
Status Pending
Filing Date 2019-04-23
First Publication Date 2021-01-28
Owner RENISHAW PLC (United Kingdom)
Inventor
  • Lummes, Stephen Edward
  • Holmes, Mark James Andrew

Abstract

A surface finish stylus is described that includes an elongate stylus shaft and a contact element protruding from the elongate shaft for contacting a surface to be measured. The contact element is deformable and the stylus shaft includes a clamp for retaining the contact element, the contact element being deformed by the clamp. The contact element may comprise a metal, such as chromium steel or nitinol. The contact element includes one or more regions of weakness to cause a required deformation when retained by the clamp. The surface finish stylus may be used with a surface finish measurement probe or the like.

IPC Classes  ?

  • G01B 5/28 - Measuring arrangements characterised by the use of mechanical techniques for measuring roughness or irregularity of surfaces
  • G01B 1/00 - Measuring instruments characterised by the selection of material therefor

84.

Coordinate positioning machine

      
Application Number 17034524
Grant Number 11300408
Status In Force
Filing Date 2020-09-28
First Publication Date 2021-01-14
Grant Date 2022-04-12
Owner RENISHAW PLC (United Kingdom)
Inventor
  • Mcmurtry, David Roberts
  • Angood, Stephen Mark
  • Bulled, Colin Ray
  • Fook, David James
  • Eales, Marcus James
  • Kemp, Christopher

Abstract

A non-Cartesian coordinate positioning machine is provided that comprises an extendable leg assembly for positioning a component such as a measurement probe within a working volume of the machine, and a constraint member associated with the extendable leg assembly for providing a predetermined part of the extendable leg assembly with substantially a same orientation relative to gravity for a same position of the component within the working volume. In a preferred embodiment, the orientation relative to gravity is maintained substantially constant, so that a plane defined by the predetermined part is substantially aligned with gravity, as the component is moved around the working volume.

IPC Classes  ?

  • G01B 21/04 - Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness by measuring coordinates of points
  • G01B 5/00 - Measuring arrangements characterised by the use of mechanical techniques
  • B23Q 1/54 - Movable or adjustable work or tool supports using particular mechanisms with rotating pairs only two rotating pairs only

85.

Additive manufacturing apparatus and method

      
Application Number 16928593
Grant Number 11229954
Status In Force
Filing Date 2020-07-14
First Publication Date 2020-11-26
Grant Date 2022-01-25
Owner RENISHAW PLC (United Kingdom)
Inventor Hall, Liam David

Abstract

An additive manufacturing apparatus and corresponding method for building an object by layerwise consolidation of material, where the apparatus includes a build enclosure containing a build support for supporting the object during the build, a material source for providing material to selected locations for consolidation, a radiation device for generating and directing radiation to consolidate the material at the selected locations and an acoustic sensing system. The acoustic sensing system may be arranged to detect acoustic signals generated in the build enclosure by consolidation of the material with the radiation. The acoustic sensing system may be a passive acoustic sensing system arranged to detect acoustic signals generated in the build enclosure that are indicative of at least one condition of the building process and/or the object.

IPC Classes  ?

  • B22F 10/20 - Direct sintering or melting
  • B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
  • B33Y 50/02 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
  • B33Y 10/00 - Processes of additive manufacturing
  • B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
  • B29C 64/386 - Data acquisition or data processing for additive manufacturing
  • B23K 26/082 - Scanning systems, i.e. devices involving movement of the laser beam relative to the laser head
  • B23K 26/342 - Build-up welding
  • B23K 26/03 - Observing, e.g. monitoring, the workpiece
  • B23K 26/06 - Shaping the laser beam, e.g. by masks or multi-focusing
  • B23K 26/12 - Working by laser beam, e.g. welding, cutting or boring in a special environment or atmosphere, e.g. in an enclosure
  • B22F 10/30 - Process control

86.

Non-contact tool setting apparatus and method for moving tool along tool inspection path

      
Application Number 16635135
Grant Number 11371830
Status In Force
Filing Date 2018-08-31
First Publication Date 2020-10-01
Grant Date 2022-06-28
Owner RENISHAW PLC (United Kingdom)
Inventor
  • Lee, William Ernest
  • Maxted, Paul

Abstract

A method for assessing the profile of a tool using a non-contact tool setting apparatus that includes a transmitter for emitting a light beam and a receiver for receiving the beam. The receiver generates a beam intensity signal describing the intensity of received light. The setting apparatus is mounted to a coordinate positioning apparatus that allows the tool to be moved relative to the setting apparatus. The method includes using the coordinate positioning apparatus to move the tool relative to the setting apparatus along a tool inspection path, the tool inspection path being selected so that the light beam is traced substantially along a periphery of the tool to be inspected. Beam intensity data is collected describing the beam intensity signal that is generated by the receiver as the tool inspection path is traversed and analysis of the collected beam intensity data is used to assess the tool profile.

IPC Classes  ?

  • G01B 11/02 - Measuring arrangements characterised by the use of optical techniques for measuring length, width, or thickness
  • B23Q 17/24 - Arrangements for indicating or measuring on machine tools using optics
  • G01B 11/04 - Measuring arrangements characterised by the use of optical techniques for measuring length, width, or thickness specially adapted for measuring length or width of objects while moving
  • G01B 11/24 - Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures

87.

Load bearing structure

      
Application Number 16493968
Grant Number 11236987
Status In Force
Filing Date 2018-04-17
First Publication Date 2020-10-01
Grant Date 2022-02-01
Owner RENISHAW PLC (United Kingdom)
Inventor
  • Derrick, Hugo George
  • Hunter, Stephen Paul
  • Larkham, David Andrew
  • Mcmurtry, David Roberts

Abstract

A coordinate positioning apparatus having a load bearing structure. The load bearing structure has at least one elongate corner piece providing at least two bearing surfaces, one on each side of the corner, for a carriage moveable along the load bearing structure, and at least one piece of sheet material which extends along the at least one elongate corner piece and provides at least one load bearing facet.

IPC Classes  ?

  • G01B 11/00 - Measuring arrangements characterised by the use of optical techniques
  • G01B 5/00 - Measuring arrangements characterised by the use of mechanical techniques
  • G01B 21/04 - Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness by measuring coordinates of points
  • G01B 7/004 - Measuring arrangements characterised by the use of electric or magnetic techniques for measuring coordinates of points
  • G01B 5/008 - Measuring arrangements characterised by the use of mechanical techniques for measuring coordinates of points using coordinate measuring machines
  • G01B 5/004 - Measuring arrangements characterised by the use of mechanical techniques for measuring coordinates of points
  • G01B 5/012 - Contact-making feeler heads therefor

88.

SPATIAL MAPPING OF SENSOR DATA COLLECTED DURING ADDITIVE MANUFACTURING

      
Application Number 16759182
Status Pending
Filing Date 2018-11-07
First Publication Date 2020-09-03
Owner RENISHAW PLC (United Kingdom)
Inventor
  • Dardis, John
  • Jones, Kiera Megan
  • Brown, Ceri
  • Jones, Nicholas Henry Hannaford

Abstract

A method of generating a spatial map of sensor data collected during additive manufacturing, in which a plurality of layers of powder are selectively melted with an energy beam to form an object. The method includes receiving sensor data collected during additive manufacturing of an object, the sensor data including sensor values, the sensor values captured for different coordinate locations of the energy beam during the additive manufacturing of the object, and generating cell values for a corresponding cell-based spatial mapping of the sensor data. Each of the cell values is determined from a respective plurality of the sensor values extending over an area/volume comparable to an extent of the melt pool or the energy beam spot.

IPC Classes  ?

  • B23K 26/342 - Build-up welding
  • B33Y 10/00 - Processes of additive manufacturing
  • B33Y 50/00 - Data acquisition or data processing for additive manufacturing

89.

Coordinate positioning machine

      
Application Number 16649065
Grant Number 10967502
Status In Force
Filing Date 2018-10-12
First Publication Date 2020-08-20
Grant Date 2021-04-06
Owner RENISHAW PLC (United Kingdom)
Inventor Angood, Stephen Mark

Abstract

A coordinate positioning machine that includes: a structure moveable within a working volume of the machine, a hexapod metrology arrangement for measuring the position of the structure within the working volume, and a non-hexapod drive arrangement for moving the structure around the working volume. Also, a coordinate positioning machine including a structure moveable within a working volume of the machine, a drive arrangement for moving the structure around the working volume in fewer than six degrees of freedom, and a metrology arrangement for measuring the position of the structure within the working volume in more degrees of freedom than the drive arrangement.

IPC Classes  ?

  • B25J 9/16 - Programme controls
  • B25J 9/02 - Programme-controlled manipulators characterised by movement of the arms, e.g. cartesian co-ordinate type
  • B25J 9/00 - Programme-controlled manipulators
  • G01B 5/008 - Measuring arrangements characterised by the use of mechanical techniques for measuring coordinates of points using coordinate measuring machines
  • B25J 17/02 - Wrist joints

90.

Non-contact tool setting apparatus and method

      
Application Number 16635121
Grant Number 11110563
Status In Force
Filing Date 2018-08-31
First Publication Date 2020-07-30
Grant Date 2021-09-07
Owner RENISHAW PLC (United Kingdom)
Inventor
  • Merrifield, Benjamin Jason
  • Egglestone, Edward Benjamin
  • Holloway, Alan James

Abstract

A method for tool measurement using a non-contact tool setting apparatus mounted to a machine tool, which includes a transmitter for emitting a light beam having a beam width and a receiver for receiving the light beam. The receiver generates a beam intensity signal describing the intensity of received light. The method is for measuring a tool having a nominal tool diameter less than the beam width so fully inserting the tool feature into the light beam would only partially occlude the beam. The method includes moving the tool through the beam thereby causing a change in the intensity signal and generating a trigger signal when the intensity signal crosses a trigger threshold. The tool size is derived using the trigger signal generated. Also, a step of applying a tool length correction that accounts for the nominal tool diameter of the tool being less than the beam width.

IPC Classes  ?

  • B23Q 17/24 - Arrangements for indicating or measuring on machine tools using optics
  • G01B 11/08 - Measuring arrangements characterised by the use of optical techniques for measuring diameters
  • G01B 11/24 - Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures

91.

Selective laser solidification apparatus and method

      
Application Number 16838095
Grant Number 11104121
Status In Force
Filing Date 2020-04-02
First Publication Date 2020-07-23
Grant Date 2021-08-31
Owner RENISHAW PLC (United Kingdom)
Inventor Ferrar, Ben Ian

Abstract

A method of selecting a scanning sequence of a laser beam in a selective laser solidification process, in which one or more objects are formed layer-by-layer by repeatedly depositing a layer of powder on a powder bed and scanning the laser beam over the deposited powder to selectively solidify at least part of the powder layers, includes determining an order in which areas should be scanned by: projecting a debris fallout zone that would be created when solidifying each area based on a gas flow direction of a gas flow passed over the powder bed; determining whether one or more other areas to be solidified fall within the debris fallout zone; and selecting to solidify the one or more other areas that fall within the debris fallout zone before solidifying the area from which the debris fallout zone has been projected.

IPC Classes  ?

  • B22F 10/322 - Process control of the atmosphere, e.g. composition or pressure in a building chamber of the gas flow, e.g. rate or direction
  • B33Y 50/02 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
  • B33Y 10/00 - Processes of additive manufacturing
  • B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
  • B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
  • B29C 64/268 - Arrangements for irradiation using electron beams [EB]
  • B29C 64/364 - Conditioning of environment
  • B29C 64/20 - Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering - Details thereof or accessories therefor
  • B22F 10/20 - Direct sintering or melting
  • B23K 26/342 - Build-up welding
  • B22F 3/10 - Sintering only
  • B29C 64/386 - Data acquisition or data processing for additive manufacturing
  • B22F 10/30 - Process control
  • B22F 10/28 - Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
  • B22F 10/32 - Process control of the atmosphere, e.g. composition or pressure in a building chamber
  • B22F 10/00 - Additive manufacturing of workpieces or articles from metallic powder

92.

Production and measurement of workpieces

      
Application Number 16611988
Grant Number 11693384
Status In Force
Filing Date 2018-05-31
First Publication Date 2020-07-23
Grant Date 2023-07-04
Owner RENISHAW PLC (United Kingdom)
Inventor
  • Jonas, Kevyn Barry
  • Wisher-Davies, Stephen

Abstract

In a workpiece production method a plurality of nominally similar workpieces are produced in a production process on one production machine. The order or time of production of some of the workpieces on the production machine is recorded. Some of the workpieces recorded are measured at two or more inspection stations. Dimensions or points of one workpiece are measured at one of the inspection stations, and corresponding dimensions or points of another of the workpieces are measured at another of the inspection stations. The results of the measurements of corresponding dimensions or points made at the two or more inspection stations are analysed together, taking account of the order or time of production of the workpieces. An output signal is produced based on the analysing of the results together. The output signal indicates performance of the production machine or of one or more of the inspection stations.

IPC Classes  ?

  • G05B 19/048 - Monitoring; Safety
  • G01B 21/04 - Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness by measuring coordinates of points

93.

Fixturing apparatus

      
Application Number 16648892
Grant Number 11385041
Status In Force
Filing Date 2018-10-16
First Publication Date 2020-07-16
Grant Date 2022-07-12
Owner RENISHAW PLC (United Kingdom)
Inventor
  • Silvey, Thomas Nigel James
  • Stroud, Ian David

Abstract

A fixturing apparatus is described that can be used with metrology apparatus, such as coordinate measuring machines, flexible gauges and the like. The fixturing apparatus has a base and a plurality of supports extending from the base that are configured to retain an object. At least one of the plurality of supports comprises a floating support having a floating support element that is moveable relative to the base upon contact with an object being loaded into the fixture. A locking mechanism, such as a pneumatic locking mechanism, is provided that can be actuated to immobilise each floating support element relative to the base. The object may have a glass sheet. A corresponding method of fixturing an object is also described.

IPC Classes  ?

  • B23Q 16/00 - Equipment for precise positioning of tool or work into particular locations not otherwise provided for
  • G01B 5/00 - Measuring arrangements characterised by the use of mechanical techniques
  • B65G 49/06 - Conveying systems characterised by their application for specified purposes not otherwise provided for for fragile or damageable materials or articles for fragile sheets, e.g. glass
  • G01B 7/004 - Measuring arrangements characterised by the use of electric or magnetic techniques for measuring coordinates of points

94.

Apparatus and method for assessing the beam profile of a non-contact tool setting apparatus

      
Application Number 16637021
Grant Number 11229983
Status In Force
Filing Date 2018-08-31
First Publication Date 2020-06-25
Grant Date 2022-01-25
Owner RENISHAW PLC (United Kingdom)
Inventor
  • Holloway, Alan James
  • Merrifield, Benjamin Jason
  • Egglestone, Edward Benjamin

Abstract

A method assesses the beam profile of a light beam of a non-contact tool setting apparatus, the apparatus including a transmitter for emitting the light beam and a receiver for receiving the light beam. The receiver generates a beam intensity signal describing the intensity of received light. The apparatus is mounted to a machine tool having a spindle that is moveable relative to the non-contact tool setting apparatus. The method includes loading an object having an edge into the spindle of the machine tool and using the machine tool to move the spindle relative to the apparatus so that the edge of the object passes through the light beam. The beam profile of the light beam is then determined using the beam intensity signal generated at a plurality of positions during the step (ii) of moving the edge of the object through the light beam.

IPC Classes  ?

  • B23Q 17/24 - Arrangements for indicating or measuring on machine tools using optics
  • G01J 1/42 - Photometry, e.g. photographic exposure meter using electric radiation detectors
  • G02F 1/11 - Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on acousto-optical elements, e.g. using variable diffraction by sound or like mechanical waves

95.

Measurement probe apparatus and method

      
Application Number 16644048
Grant Number 11415412
Status In Force
Filing Date 2018-09-26
First Publication Date 2020-06-18
Grant Date 2022-08-16
Owner RENISHAW PLC (United Kingdom)
Inventor
  • Buckingham, Jamie John
  • Wooldridge, Michael John
  • Holden, Ben Richard
  • Ewen, Stephen Peter

Abstract

A measurement probe is described that includes a probe body, a stylus that is deflectable relative to the probe body, and a plurality of sensor elements for generating a sensor signal indicative of stylus deflection. An analyser is provided, optionally as part of a trigger unit, to analyse the sensor signals and issues a trigger signal to indicate the stylus has contacted an object. The analyser is arranged to combine a plurality of the sensor signals to generate a resultant deflection signal for comparison to a deflection threshold and is also arranged to detect oscillatory motion of the stylus by analysing at least one of the sensor signals. The analyser only issues a trigger signal when the resultant deflection signal crosses the deflection threshold and no oscillatory motion of the stylus is detected. The measurement probe may be used on a machine tool or other coordinate positioning apparatus.

IPC Classes  ?

  • G01B 21/04 - Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness by measuring coordinates of points
  • G01B 5/012 - Contact-making feeler heads therefor
  • G01B 7/012 - Contact-making feeler heads therefor

96.

Non-contact tool setting apparatus and method

      
Application Number 16637415
Grant Number 11224954
Status In Force
Filing Date 2018-09-13
First Publication Date 2020-06-11
Grant Date 2022-01-18
Owner RENISHAW PLC (United Kingdom)
Inventor
  • Egglestone, Edward Benjamin
  • Gribble, Andrew Paul

Abstract

A non-contact tool setting apparatus, suitable for use with machine tools and the like, is described in which a transmitter emits light that is received by a receiver. An analysis unit is provided for analysing the light received by the receiver and generating a trigger signal therefrom. The receiver includes an imaging sensor, such as a CMOS or CCD sensor, having a plurality of pixels. The analysis unit generates the trigger signal by analysing the light intensity measured by a first subset of the plurality of pixels. This analysis may involve, for example, determining a resultant received light intensity or performing edge detection. The non-contact tool setting apparatus can thus emulate the operation of a laser based non-contact tool setting apparatus whilst also permitting imaging of cutting tools.

IPC Classes  ?

  • B23Q 17/24 - Arrangements for indicating or measuring on machine tools using optics
  • G06T 7/13 - Edge detection
  • B23Q 17/09 - Arrangements for indicating or measuring on machine tools for indicating or measuring cutting pressure or cutting-tool condition, e.g. cutting ability, load on tool
  • G06T 1/00 - General purpose image data processing
  • G06T 7/20 - Analysis of motion

97.

Positioning apparatus

      
Application Number 16494333
Grant Number 11035658
Status In Force
Filing Date 2018-04-17
First Publication Date 2020-06-11
Grant Date 2021-06-15
Owner RENISHAW PLC (United Kingdom)
Inventor
  • Derrick, Hugo George
  • Hunter, Stephen Paul

Abstract

A positioning apparatus, having first and second members relatively moveable in a substantially vertical degree of freedom. At least one energy conduit is mounted to at least one of the first and second members, which imparts a load on at least one of the members it is mounted to that varies dependent on the relative position of the first and second members. A compensatory member is configured to apply a load that varies, dependent on the relative position of the first and second members, inversely to the variation in load applied by the at least one energy conduit, so as to at least partially counteract the variation in load applied by the at least one energy conduit on said at least one of the members.

IPC Classes  ?

  • G01B 5/008 - Measuring arrangements characterised by the use of mechanical techniques for measuring coordinates of points using coordinate measuring machines
  • G01B 5/00 - Measuring arrangements characterised by the use of mechanical techniques
  • G01B 5/012 - Contact-making feeler heads therefor
  • G01B 21/04 - Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness by measuring coordinates of points

98.

Method of calibrating a surface sensing device, corresponding calibrating program for a control computer and corresponding calibration kit

      
Application Number 16483692
Grant Number 11650050
Status In Force
Filing Date 2018-02-13
First Publication Date 2020-04-30
Grant Date 2023-05-16
Owner RENISHAW PLC (United Kingdom)
Inventor
  • Rees, Martin Simon
  • Butter, Andrew Geoffrey
  • Wallace, David Sven

Abstract

A surface sensing device is mounted on an articulating probe head of a coordinate measuring machine. The device includes an elongate probe holder which is rotatable about an axis. An elongate sensing module includes a surface finish or surface roughness probe with a stylus tip. This is connected to the probe holder via an adjustable knuckle joint. To determine the geometry of the surface sensing device, including the tip normal and drag vector of the stylus tip, the orientations of the probe holder and the sensing module are determined by probing points which are spaced along their lengths, using a separate probe.

IPC Classes  ?

  • G01B 21/04 - Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness by measuring coordinates of points
  • G01B 5/012 - Contact-making feeler heads therefor
  • G01B 7/012 - Contact-making feeler heads therefor
  • G01B 11/00 - Measuring arrangements characterised by the use of optical techniques

99.

Additive manufacturing apparatus and methods

      
Application Number 16655881
Grant Number 11446863
Status In Force
Filing Date 2019-10-17
First Publication Date 2020-03-26
Grant Date 2022-09-20
Owner RENISHAW PLC (United Kingdom)
Inventor
  • Brown, Ceri
  • Jones, Nicholas H H
  • Ewing, David G J
  • Mcfarland, Geoffrey

Abstract

An additive manufacturing apparatus including a scanner for directing a laser beam on to layers of flowable material to selectively solidify the material to form an object in a layer-by-layer manner. The scanner includes an optical component operable under the control of a first actuator to reflect the laser beam over a first range of angles in a first dimension and the or a further optical component operable under the control of a second actuator to reflect the laser beam over a second range of angles in the first dimension, wherein the second actuator provides a faster dynamic response but a smaller range of movement of the laser beam than the first actuator.

IPC Classes  ?

  • B33Y 50/02 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
  • B29C 64/393 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
  • B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
  • B33Y 10/00 - Processes of additive manufacturing
  • B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
  • G02B 26/10 - Scanning systems
  • B29C 64/264 - Arrangements for irradiation
  • B29C 64/268 - Arrangements for irradiation using electron beams [EB]
  • G02B 26/00 - Optical devices or arrangements for the control of light using movable or deformable optical elements
  • B33Y 40/00 - Auxiliary operations or equipment, e.g. for material handling

100.

Bearing arrangement

      
Application Number 16493929
Grant Number 11060836
Status In Force
Filing Date 2018-04-17
First Publication Date 2020-03-12
Grant Date 2021-07-13
Owner RENISHAW PLC (United Kingdom)
Inventor
  • Hunter, Stephen Paul
  • Larkham, David Andrew

Abstract

A positioning apparatus including a moveable member moveable along a bearing guideway in a first dimension, the moveable member including at a first end thereof at least first and second bearing members which are preloaded against corresponding first and second sides of a concave corner of the bearing guideway.

IPC Classes  ?

  • G01B 5/008 - Measuring arrangements characterised by the use of mechanical techniques for measuring coordinates of points using coordinate measuring machines
  • G01B 5/00 - Measuring arrangements characterised by the use of mechanical techniques
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