This machining program generation device is provided with: a storage unit that stores machining conditions for respective tool regions determined on the basis of the number of effective edges in a multi-blade tool; a contact region calculation unit that calculates a tool region which comes into contact with a workpiece during machining on the basis of the shapes of the workpiece and the edge portion of the tool and of a tool path; and a machining program generation unit that generates a machining program on the basis of the tool path and the machining conditions stored in the storage unit in association with the tool region coming into contact with the workpiece.

This machining program generation device is provided with: a storage unit that stores machining conditions for respective tool regions determined on the basis of the number of effective edges in a multi-blade tool; a contact region calculation unit that calculates a tool region which comes into contact with a workpiece during machining on the basis of the shapes of the workpiece and the edge portion of the tool and of a tool path; and a machining program generation unit that generates a machining program on the basis of the tool path and the machining conditions stored in the storage unit in association with the tool region coming into contact with the workpiece.

Processing data during polygon processing is stored in the processing data storage unit 17. The position detection unit 18 detects a cut-start position A and a cut-end position B of a workpiece based on a change in the processing data. The position detection unit 18 detects a processing surface based on the cut-start position A and the cut-end position B.

Processing data during polygon processing is stored in the processing data storage unit 17. The position detection unit 18 detects a cut-start position A and a cut-end position B of a workpiece based on a change in the processing data. The position detection unit 18 detects a processing surface based on the cut-start position A and the cut-end position B.

A method of machining an elongate workpiece extending along a longitudinal axis and shaped to be supported rotationally instably about the longitudinal axis includes sensing a rotation of the workpiece about the longitudinal axis, thereby yielding a sensing result; and machining the workpiece at the machining station at least partly in dependence of the sensing result.

A method of machining an elongate workpiece extending along a longitudinal axis and shaped to be supported rotationally instably about the longitudinal axis includes sensing a rotation of the workpiece about the longitudinal axis, thereby yielding a sensing result; and machining the workpiece at the machining station at least partly in dependence of the sensing result.

A workpiece processing device includes a workpiece supporting unit configured to support a workpiece so that the workpiece is rotatable around a first axis parallel to a central axis of the workpiece, a cutting unit having a blade configured to cut a surface of the workpiece, a detecting unit configured to calculate a position of a vertex of the surface in a direction along a second axis which is perpendicular to the first axis and parallel to the blade, and a control unit configured to control the workpiece supporting unit so that a cutting position on the surface is located at a vertex in the direction along the second axis, and relatively move the workpiece supporting unit and the cutting unit so that an incision direction of the blade is on a plane defined by the central axis and the cutting position, thereby forming a groove at the cutting position.

A workpiece processing device includes a workpiece supporting unit configured to support a workpiece so that the workpiece is rotatable around a first axis parallel to a central axis of the workpiece, a cutting unit having a blade configured to cut a surface of the workpiece, a detecting unit configured to calculate a position of a vertex of the surface in a direction along a second axis which is perpendicular to the first axis and parallel to the blade, and a control unit configured to control the workpiece supporting unit so that a cutting position on the surface is located at a vertex in the direction along the second axis, and relatively move the workpiece supporting unit and the cutting unit so that an incision direction of the blade is on a plane defined by the central axis and the cutting position, thereby forming a groove at the cutting position.

A first speed and a second speed slower than the first speed are set as a contact speed when a work w and a detection jig t attached to a tool post are brought into contact with each other to detect a position or a posture of the work w, the work and the detection jig are brought into contact with each other at the first speed, the detection jig and the work contacting each other are separated from each other by a predetermined distance, the work and the detection jig which are separated from each other are brought into contact with each other at the same position at the second speed, and a correction value δ is obtained based on a tool post position or a spindle angle during the second contact.

A first speed and a second speed slower than the first speed are set as a contact speed when a work w and a detection jig t attached to a tool post are brought into contact with each other to detect a position or a posture of the work w, the work and the detection jig are brought into contact with each other at the first speed, the detection jig and the work contacting each other are separated from each other by a predetermined distance, the work and the detection jig which are separated from each other are brought into contact with each other at the same position at the second speed, and a correction value δ is obtained based on a tool post position or a spindle angle during the second contact.