Title:
工作機械の熱変位補正方法、熱変位補正プログラム、熱変位補正装置
Document Type and Number:
Japanese Patent JP7210268
Kind Code:
B2
Abstract:
To make it possible to tune thermal displacement correction parameter for improving accuracy in intended processing while a risk such that thermal displacement correction operation becomes unstable when environmental temperature and processing content change.SOLUTION: At S1, data concerning temperature, displacement amount, thermal displacement correction amount is imported, and at S2, temperature change index Ai during adjustment is determined from data for thermal displacement adjustment. Next, at S3, assumption temperature index Bi is set on the basis of input information, and at S4, a maximum absolute value |C|max of coefficient of adjustment allowed is determined from two temperature change indexes. At S5, a value of regularized coefficient λ is determined while changing the regularized coefficient λ so that a magnitude of coefficient of adjustment becomes smaller than an allowable maximum value and λ becomes minimum. At S6, coefficient of adjusted heat displacement estimation formula is determined by use of determined λ. At S7, thermal displacement correction is executed by the thermal displacement estimation formula combining basic and adjustment.SELECTED DRAWING: Figure 3
Inventors:
Yuji Mizoguchi
Application Number:
JP2018241472A
Publication Date:
January 23, 2023
Filing Date:
December 25, 2018
Export Citation:
Assignee:
Okuma Corporation
International Classes:
B23Q15/18; G05B19/404
Domestic Patent References:
| JP2018153901A |
Foreign References:
| WO2016067874A1 |
Attorney, Agent or Firm:
Ishida Kiki
Kyoichi Ueda
Kyoichi Ueda