A method for dynamically compensating angle errors when operating a machine tool that includes at least one fixture for a workpiece, in or on which a workpiece can be secured, at least one toolholder, in or on which a tool, in particular a drill, can be secured and can be rotationally driven by a rotational drive of the toolholder. The rotational drive including at least one horizontal drive by which the toolholder — for purposes of machining the workpiece —can execute movements in at least one horizontal plane of the machine tool. The machine tool further includes at least one vertical drive by which the toolholder can execute movements in a vertical direction of the machine tool, and at least one controller to which the rotational drive, the horizontal drive, and the vertical drive are functionally assigned.

A manufacturing method, a manufacturing apparatus, a computer readable recording medium, and a program for manufacturing a machine component having a rotation symmetry plane are provided. According to one embodiment, the manufacturing method includes positioning a linear cutting edge (2A) inclined at an angle greater than 0 and smaller than 90 with respect to a Z axis at a cutting start position displaced from a position on an X axis along a direction of a Y axis in a three-dimensional orthogonal coordinate system in which an axial line of rotation of a rotation symmetry plane (1A) is defined as the Z axis, an axis in a radial direction of the rotation symmetry plane is defined as the X axis, and an axis orthogonal to both of the Z axis and the X axis is defined as the Y axis and machining the rotation symmetry plane (1A) by feeding the cutting edge (2A) from the cutting start position along a track having an X axis component, a Y axis component, and a Z axis component while the cutting edge is in contact with a rotating machine component (1).

A method for calibrating a CNC machine including providing instructions for machining a surface of a distortion-free object, selecting a true axis of movement of a toolhead of the machine using the instructions, instructing the toolhead to travel on an object to be machined along the true axis of movement, but where the toolhead actually travels along an actual axis that is deviated from the true axis as a result of the surface distortions on the object to be machined, selecting multiple points along the actual axis traveled by the toolhead on the object to be machined, comparing the distance of the multiple points along the actual axis from the true axis to determine offset amounts from the true axis corresponding to a lack of straightness of the object to be machined, and modifying the instructions to compensate for the offset amounts before uploading the instructions to a CNC controller.

A manufacturing method, a manufacturing apparatus, a computer readable recording medium, and a program for manufacturing a machine component having a rotation symmetry plane are provided. According to one embodiment, the manufacturing method includes positioning a linear cutting edge (2A) inclined at an angle greater than 0 and smaller than 90 with respect to a Z axis at a cutting start position displaced from a position on an X axis along a direction of a Y axis in a three-dimensional orthogonal coordinate system in which an axial line of rotation of a rotation symmetry plane (1A) is defined as the Z axis, an axis in a radial direction of the rotation symmetry plane is defined as the X axis, and an axis orthogonal to both of the Z axis and the X axis is defined as the Y axis and machining the rotation symmetry plane (1A) by feeding the cutting edge (2A) from the cutting start position along a track having an X axis component, a Y axis component, and a Z axis component while the cutting edge is in contact with a rotating machine component (1).

A method includes positioning a linear cutting edge inclined at an angle greater than 0 and smaller than 90 with respect to a Z axis at a cutting start position displaced from a position on an X axis along a direction of a Y axis in a three-dimensional orthogonal coordinate system in which an axial line of rotation of a rotation symmetry plane is defined as the Z axis, an axis in a radial direction of the rotation symmetry plane is defined as the X axis, and an axis orthogonal to both of the Z axis and the X axis is defined as the Y axis and machining the rotation symmetry plane by feeding the cutting edge from the cutting start position along a track having an X axis component, a Y axis component, and a Z axis component while the cutting edge is in contact with a rotating machine component.

A method for calibrating a CNC machine including providing instructions for machining a surface of a distortion-free object, selecting a true axis of movement of a toolhead of the machine using the instructions, instructing the toolhead to travel on an object to be machined along the true axis of movement, but where the toolhead actually travels along an actual axis that is deviated from the true axis as a result of the surface distortions on the object to be machined, selecting multiple points along the actual axis traveled by the toolhead on the object to be machined, comparing the distance of the multiple points along the actual axis from the true axis to determine offset amounts from the true axis corresponding to a lack of straightness of the object to be machined, and modifying the instructions to compensate for the offset amounts before uploading the instructions to a CNC controller.

A method for virtually calibrating a CNC machine including the steps of selecting a true axis of movement of a toolhead of the CNC machine, instructing the toolhead to travel along the true axis of movement, selecting multiple points along an actual axis traveled by the toolhead, comparing the distance of the multiple points along the actual axis from the true axis to determine offset amounts from the true axis corresponding to a lack of straightness, and modifying g-code instructions to compensate for the offset amounts before uploading the g-codes to a CNC controller.

A method includes positioning a linear cutting edge inclined at an angle greater than 0 and smaller than 90 with respect to a Z axis at a cutting start position displaced from a position on an X axis along a direction of a Y axis in a three-dimensional orthogonal coordinate system in which an axial line of rotation of a rotation symmetry plane is defined as the Z axis, an axis in a radial direction of the rotation symmetry plane is defined as the X axis, and an axis orthogonal to both of the Z axis and the X axis is defined as the Y axis and machining the rotation symmetry plane by feeding the cutting edge from the cutting start position along a track having an X axis component, a Y axis component, and a Z axis component while the cutting edge is in contact with a rotating machine component.

A Cartesian numerically controlled machine tool for high-precision machining includes a footing, a first part with first movement elements for the movement of a second part with respect to a first controlled axis, a second part with second movement elements for the movement of a third part with respect to a second controlled axis, and a third part with third movement elements for the movement of a machining head with respect to a third controlled axis. The Cartesian machine tool further includes a machining head, and, on board, optical elements for detecting and monitoring the position of at least one reference nodal point for each of one or more of the controlled axes with respect to a reference that is integral with a part of the machine tool.

An error identification method of a machine tool includes an initial position measurement step of indexing a main spindle head rotation axis to an initial angle to measure an initial position of a measured jig, a table reference angle calculation step of calculating a reference angle of the table, a reference position measurement step of indexing the table rotation axis to the reference angle and indexing the main spindle head rotation axis to the initial angle, a relative position measurement step of respectively indexing the table rotation axis and the main spindle head rotation axis to a plurality of predetermined angles, an arc approximation step of approximating the plurality of measured position values into an arc, and an error calculation step of calculating an error of a center position of the rotation axis, a tilt error of the rotation axis, or a tilt error of the translational axis.