Title:
CONTROL DEVICE AND CONTROL METHOD FOR MACHINE TOOL, AND SLAVE SHAFT CONTROL DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/009822
Kind Code:
A1
Abstract:
The present invention increases synchronization accuracy through improvement of followability of a slave shaft with respect to a master shaft. A control device according to the present invention is provided with: a master shaft control unit that controls rotational operation of a master shaft; a slave shaft control unit that controls a feeding operation of a slave shaft; and a numerical value control unit including a master shaft command unit that outputs a first inversion command to the master shaft control unit, a slave shaft command unit that, on the basis of feedback information from the master shaft, outputs a second inversion command that follows the feedback information to the slave shaft control unit, and a prior inversion command unit that outputs a prior inversion command to the slave shaft control unit prior to the output of the first inversion command. The slave shaft control unit stores the second inversion command and a follow result and an inversion correction amount in response to the second inversion command in association with each other, and obtains an inversion correction amount in response to the second inversion command being output after the output of the prior inversion command, from the follow result and the inversion correction amount associated with the stored second inversion command identified on the basis of the prior inversion command.
Inventors:
TAJIMA DAISUKE (JP)
Application Number:
PCT/JP2021/025250
Publication Date:
January 13, 2022
Filing Date:
July 05, 2021
Export Citation:
Assignee:
FANUC CORP (JP)
International Classes:
B23G1/16; B23Q15/12; G05B19/404
Domestic Patent References:
| WO2017221380A1 | 2017-12-28 |
Foreign References:
| JP2013035095A | 2013-02-21 | |||
| JP2007042068A | 2007-02-15 | |||
| JP2003181722A | 2003-07-02 | |||
| JPS63245325A | 1988-10-12 |
Attorney, Agent or Firm:
SHOBAYASHI Masayuki et al. (JP)
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