Title:
MACHINE TOOL CONTROL DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/071209
Kind Code:
A1
Abstract:
The present invention provides a machine tool control device that makes it possible to optimally adjust a variation condition and obtain a stable chattering suppression effect. The machine tool control device is provided with: a variation command calculation unit that calculates a variation command on the basis of a speed command for a spindle motor in a machine tool and a variation condition for varying the rotation speed of the spindle motor, and generates a speed control command for controlling the speed of the spindle motor on the basis of the speed command and the variation command; a speed deviation determination unit that determines whether or not a speed deviation indicating the difference between the speed command and the actual speed of the spindle motor in a prescribed period is within a first permissible range; and a condition change unit that changes the variation condition when the speed deviation is out of the first permissible range.
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Inventors:
OIKAWA KOUKI (JP)
Application Number:
PCT/JP2021/035332
Publication Date:
April 07, 2022
Filing Date:
September 27, 2021
Export Citation:
Assignee:
FANUC CORP (JP)
International Classes:
G05B19/404; B23Q15/12
Foreign References:
| JP5727572B2 | 2015-06-03 | |||
| JP2020069621A | 2020-05-07 |
Attorney, Agent or Firm:
SHOBAYASHI Masayuki et al. (JP)
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