CONTROL DEVICE FOR MACHINE TOOL AND MACHINE TOOL INCLUDING THE CONTROL DEVICE

摘要

To provide a machine tool and a control device for the machine tool that can smoothly cut a workpiece while segmenting chips by feeding a cutting tool in a feed direction while reciprocally vibrating the cutting tool along the feed direction on the basis of a condition set by a user. The machine tool (100) or the control device (C) includes: a setting unit (C1, C2) for utilizing a number of rotations of relative rotation of a workpiece (W) and the cutting tool, a number of reciprocal vibrations of the cutting tool per rotation of the relative rotation, and a vibration frequency dependent on a period in which the control device (C) can execute an operating instruction when the workpiece W is machined as parameters and for setting values of two of the parameters to a control section (C1); and a correcting unit (C1) for setting the remaining one of the parameters to a predetermined value and correcting the values of the two of the parameters set by the setting unit on the basis of the value of the remaining one of the parameters.

主权项

1. A control device for a machine tool provided in a machine tool having a cutting tool for cutting a workpiece, a rotating unit for relatively rotating the cutting tool and the workpiece, a feeding unit for feeding the cutting tool and the workpiece in a predetermined feed direction, and a vibration unit for relatively reciprocally vibrating the cutting tool and the workpiece,
the control device having a control to make the machine tool machine the workpiece via the relative rotation of the cutting tool and the workpiece and via the feeding of the cutting tool to the workpiece with the reciprocal vibration, wherein the control device comprises: a setting unit for utilizing a number of rotations of the relative rotation, a number of vibrations of the reciprocal vibration per rotation of the relative rotation, and a vibration frequency dependent on a period in which the control device can execute an operating instruction when the workpiece is machined as parameters and for setting values of two of the parameters to the control section, and a correcting unit for setting the remaining one of the parameters to a predetermined value and correcting the values of the two of the parameters set by the setting unit to predetermined values on the basis of the value of the remaining one of the parameters.