A machine tool has a substantially straight guide element (2) extending along a first axis (A1); two carriages (3, 4), which are arranged at a fixed distance (D) from one another along the guide element (2) and are capable of sliding together along the guide element (2); a slide (5), which is interposed between the two carriages (3, 4), is carried by the two carriages (3, 4) and can slide relative to them along a second axis (A2) perpendicular to the first axis (A1); and a milling head (6), which is carried by the slide (5) and is configured to carry a milling tool.
B23Q 1/01 - Bâtis, bancs, colonnes ou éléments similaires; Agencement des glissières de guidage
B23Q 1/62 - Supports mobiles ou réglables d'outils ou de pièces utilisant des mécanismes particuliers avec des guidages en translation uniquement avec deux guidages en translation uniquement à axes perpendiculaires, p.ex. chariots à mouvements transversaux
B23Q 5/38 - Avance par transmission mécanique des autres organes supportant les outils ou les pièces, p.ex. avance des traînards, des glissières d'outils à avance continue
The invention provides a method for checking positioning accuracy of a CNC machine with a machine tool head and a machine table, using an x, y, z coordinate system, wherein the z coordinate is the coordinate perpendicular to the machine table surface, the method comprising the steps: a) arranging a plurality of vessels on the machine table, wherein the vessels are in fluid connection with each other to form a system of communicating vessels, wherein the system of communicating vessels is filled with a liquid, b) mounting a distance sensor to the machine tool head, c) positioning the machine tool head to a position perpendicular above the surface of the liquid in one of the vessels, d) approaching the surface of the liquid with the distance sensor and determining the z coordinate for which the distance sensor touches the surface of the liquid, or. for a predetermined position of the machine tool head in z direction above the surface of the liquid, determining the distance between the distance sensor and the surface of the liquid, wherein steps c) and d) are repeated for each vessel to determine a respective z coordinate of the surface of the liquid.
G05B 19/401 - Commande numérique (CN), c.à d. machines fonctionnant automatiquement, en particulier machines-outils, p.ex. dans un milieu de fabrication industriel, afin d'effectuer un positionnement, un mouvement ou des actions coordonnées au moyen de données d'u caractérisée par des dispositions de commande pour la mesure, p.ex. étalonnage et initialisation, mesure de la pièce à usiner à des fins d'usinage
G01C 5/04 - Nivellement hydrostatique, c. à d. par des réservoirs à liquides interconnectés élastiquement, se trouvant en des points séparés
The tool carrying head (1) comprises a first fork-shaped carrying structure (2), having two branches or prongs (2a, 2b) facing each other; a second carrying structure (3), mounted rotatably between the branches (2a, 2b) of the fork-shaped structure (2) about a first axis (A-A) which is essentially orthogonal to the branches or prongs (2a, 2b), and defining an internal through opening (4); a third carrying structure (5) mounted rotatably in the through opening (4) of the second structure (3), about a second axis (B-B) which is orthogonal to the first axis (A-A); and a tool carrying spindle (6) mounted rotatably in the third carrying structure (5) about a third axis (C-C) which is orthogonal to the first and second axes (A-A, B-B).
B23Q 1/48 - Supports mobiles ou réglables d'outils ou de pièces utilisant des mécanismes particuliers avec des guidages en translation et des guidages en rotation
B23Q 1/54 - Supports mobiles ou réglables d'outils ou de pièces utilisant des mécanismes particuliers avec des guidages en rotation uniquement avec deux guidages en rotation uniquement
The system performs control and virtual display (1) for a machine tool (M) which comprises a tool-holder (2) for a tool (T), a carrier (3) for a workpiece (W) to be machined by means of the tool (T), and a plurality of actuator devices (Al,..., AN) which can be controlled by means of associated drivers (D1,..., DN) in order to bring about controlled relative displacements between the tool (T) and the workpiece (W) along respective axes. The control system (1) comprises: a numerical controller (NC) which is connected to the drivers (D1,..., DN) and is suitable for implementing a machining program that is predetermined according to the features of the workpiece (W) to be produced and the features of the tool (T); the numerical controller (NC) is suitable for calculating, on the basis of the machining program, target coordinates defining positions of the tool (T) along the axes, which positions are to be reached by the activation of the associated actuator devices (Al, AN); image display means (ID); and a processing system (P) which is incorporated in and/or connected to the numerical controller (NC) in order to receive the calculated target coordinate values, and which is arranged to generate, on the basis of the target coordinates and of stored mathematical models of the machine (M), of the workpiece and of the tool, image data suitable for producing on the image display means (ID) a predictive, virtual, two-dimensional representation of the positions adopted by the workpiece (W) and by the tool (T) up to a preselected future moment.
A precision measuring system (1) for industrial machines is disclosed, particularly for numerically-controlled machine tools, particularly for measuring the linear displacement transduction of an object (40) comprising at least one optical system (20) equipped with at least one CCD-type optical sensor (10) adapted to acquire images of the object (40) in time; and acquiring, processing and computing means (30) of video signals (80) generated by the CCD-type optical sensor (10) adapted to determine measure signals (90) representing an amount of a displacement of the object (40). A measuring process using the system (1) is further disclosed.
G01B 11/00 - Dispositions pour la mesure caractérisées par l'utilisation de techniques optiques
G01B 21/00 - Dispositions pour la mesure ou leurs détails, où la technique de mesure n'est pas couverte par les autres groupes de la présente sous-classe, est non spécifiée ou est non significative
G01D 5/26 - Moyens mécaniques pour le transfert de la grandeur de sortie d'un organe sensible; Moyens pour convertir la grandeur de sortie d'un organe sensible en une autre variable, lorsque la forme ou la nature de l'organe sensible n'imposent pas un moyen de conversion déterminé; Transducteurs non spécialement adaptés à une variable particulière utilisant des moyens optiques, c. à d. utilisant de la lumière infrarouge, visible ou ultraviolette
G05D 1/02 - Commande de la position ou du cap par référence à un système à deux dimensions
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