| CPC G05B 19/182 (2013.01) [G05B 2219/39241 (2013.01)] | 18 Claims |
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1. A numerical control device that outputs, to a drive shaft controller that provides feedback control on a motor connected to a drive shaft provided on at least one of a tool or a workpiece, a vibration cutting command to machine the workpiece while causing the tool and the workpiece to move relative to each other, the feedback control being provided using a detector for detecting location information of the motor, the numerical control device comprising:
a first waveform divider to perform a division of a waveform of a commanded oscillatory movement quantity specified by the vibration cutting command, into sections each corresponding to a unit time;
a second waveform divider to perform a division of a waveform of an actual position detected by the detector into sections each corresponding to the unit time; and
a display controller to display, on a display, an n-th commanded oscillation waveform, an (n+1)-th commanded oscillation waveform, an n-th actual position waveform, and an (n+1)-th actual position waveform being superimposed on one another along a time axis, n being a natural number, the n-th commanded oscillation waveform being an n-th waveform of the commanded oscillatory movement quantity produced by the division performed by the first waveform divider, the (n+1)-th commanded oscillation waveform being an (n+1)-th waveform of the commanded oscillatory movement quantity produced by the division performed by the first waveform divider, the n-th actual position waveform being an n-th waveform of the actual position produced by the division performed by the second waveform divider, the (n+1)-th actual position waveform being an (n+1)-th waveform of the actual position produced by the division performed by the second waveform divider.
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