Title:
CONTROL DEVICE, MACHINE TOOL, CALCULATION METHOD, AND PROGRAM
Document Type and Number:
WIPO Patent Application WO/2021/044491
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a device for automatically performing thermal displacement correction in a machine tool. Therefore, the present invention comprises: a machining data collection unit 67 for collecting machining data including the date and time at which at least one machining portion set as a learning object on a workpiece was machined by a machine tool; a temperature collection unit 29 for collecting, at prescribed time intervals, temperature data for a plurality of positions on the machine tool; a dimension data input unit 75 for inputting dimension measurement data obtained by measuring the post-machining dimensions of at least one machining portion; a learning data generation unit 85 for generating learning data including the machining data and the dimension measurement data; and a machine learning execution unit 95 for executing machine learning on the basis of the temperature data and the learning data and calculating a correction coefficient of a thermal displacement correction formula for correcting displacement due to temperature change in the machine tool.
Inventors:
OKUDA TOSHIHITO (JP)
YOSHIDA RYO (JP)
ISEKI AKIRA (JP)
SUZUKI YASUHIKO (JP)
YOSHIDA RYO (JP)
ISEKI AKIRA (JP)
SUZUKI YASUHIKO (JP)
Application Number:
PCT/JP2019/034450
Publication Date:
March 11, 2021
Filing Date:
September 02, 2019
Export Citation:
Assignee:
YAMAZAKI MAZAK CORP (JP)
International Classes:
G05B19/404; B23Q15/18; G05B19/4155
Domestic Patent References:
| WO2016067874A1 | 2016-05-06 |
Foreign References:
| JPH03208540A | 1991-09-11 | |||
| JP2005052917A | 2005-03-03 | |||
| JPH068107A | 1994-01-18 | |||
| JP2018111145A | 2018-07-19 | |||
| US20190018391A1 | 2019-01-17 |
Other References:
See also references of EP 4012520A4
Attorney, Agent or Firm:
PATENT CORPORATE BODY DAI-ICHI KOKUSAI TOKKYO JIMUSHO (JP)
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