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:
Aug. 18, 2015
Filed:
Jan. 13, 2012
Akira Kimura, Nara, JP;
Koji Yamamoto, Nara, JP;
Katsuhiko Ono, Nara, JP;
Kimiyuki Nishimura, Nara, JP;
Kenichiro Ueno, Nara, JP;
Keiichi Nakamachi, Nara, JP;
Akira Kimura, Nara, JP;
Koji Yamamoto, Nara, JP;
Katsuhiko Ono, Nara, JP;
Kimiyuki Nishimura, Nara, JP;
Kenichiro Ueno, Nara, JP;
Keiichi Nakamachi, Nara, JP;
DMG Mori Seiki Co., Ltd., Nara, JP;
Abstract
A positioning control apparatus has a moving body, a feed device having a guide mechanism for guiding the moving body in the direction of its feed axis and a drive mechanism for moving the moving body, a structural body supporting the feed device and a controller for controlling a moving position of the moving body with respect to a reference position on a machine tool by controlling the operation of the drive mechanism, and further has a calculating section calculating displacement of the feed device in the feed-axis direction with respect to the reference position caused by displacement of the structural body and a compensating section receiving the displacement data measured by the calculating section and adding modification data for eliminating the displacement to a control signal in the controller.