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AssigneeMakino Milling Machine Co., Ltd.
InventorsNorio Mori, Tadashi Kasahara, Tadahiro Nishiguchi
Estimating the term…
A numerically controlled machine tool has a linear and rotational feed and has functions for measuring in advance, errors of a relative position and a relative attitude of a main spindle relative to a work table by positioning the linear and rotational feed axes to specified position and attitude, and correcting a movement command based on measured error data, the data being multi-dimensional data containing a position error and an attitude error. The machine tool includes a error data storage means which store an error map prepared by collecting a plurality of the error data corresponding to positions and rotation angles of the linear and rotational feed axes, and a correction data computing means which compute correction data for correcting movement command from a command position for the linear and rotational feed axes and the error data stored in the error data storage means.
A numerically controlled machine tool which has a linear feed axis and a rotational feed axis and which has functions of measuring in advance errors of a relative position and a relative attitude of a main spindle relative to a work table by positioning said linear feed axis and said rotational feed axis to specified position and attitude, and of correcting a movement command based on measured error data, said error data being multi-dimensional data containing a position error and an attitude error, said machine tool comprising:
A numerical control device which controls a machine tool having a linear feed axis and a rotational feed axis and which has a function of correcting movement command for feed axes based on error data that have been measured in advance, said device comprising:
Dependencies are inferred from the claim text.