The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 19, 2016
Filed:
May. 16, 2012
Yuji Sasaki, Takahama, JP;
Hideki Iwai, Toyoake, JP;
Yasumasa Sakurai, Kariya, JP;
Kimihiro Onishi, Kasugai, JP;
Yoshio Wakazono, Nagoya, JP;
Yoshiji Yamamoto, Toyohashi, JP;
Yuji Sasaki, Takahama, JP;
Hideki Iwai, Toyoake, JP;
Yasumasa Sakurai, Kariya, JP;
Kimihiro Onishi, Kasugai, JP;
Yoshio Wakazono, Nagoya, JP;
Yoshiji Yamamoto, Toyohashi, JP;
JTEKT Corporation, Osaka-shi, JP;
Abstract
In a thermal displacement compensating device and a thermal displacement compensating method for a machine tool, a block temperature obtaining section obtains temperatures of respective blocks based on temperature information detected by temperature sensors wherein temperatures in each of the respective blocks into which a column is divided to be pluralized are defined as a uniform value. An FEM analysis section performs a structural analysis by a finite element method based on the temperatures of the respective blocks obtained by the block temperature obtaining section and infers thermal displacement amounts of the column. A compensation value calculation section calculates a compensation value for a machining command position based on the thermal displacement amounts of the column inferred by the FEM analysis section. A compensation section compensates the machining command position by the compensation value obtained by the compensation value calculation section.