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:
Oct. 24, 2023
Filed:
Aug. 09, 2019
Applicant:
Howa Machinery, Ltd., Kiyosu, JP;
Inventor:
Hiroshi Nagaosa, Kiyosu, JP;
Assignee:
HOWA MACHINERY, LTD., Kiyosu, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23Q 17/22 (2006.01); B23B 31/02 (2006.01); B23Q 3/06 (2006.01); G01L 5/00 (2006.01); G01L 5/16 (2020.01);
U.S. Cl.
CPC ...
B23Q 17/2291 (2013.01); B23B 31/02 (2013.01); B23Q 3/06 (2013.01); G01L 5/0028 (2013.01); G01L 5/16 (2013.01);
Abstract
A chuck grip accuracy checking method includes a gripping in which the measurement target is gripped on the claws, a moving step, and a measuring step. In the moving step, a movable member provided with a measurement instrument capable of measuring a run-out of the measurement target is moved by driving a movable-member driver to a position at which the measurement instrument can measure a run-out of the measurement target. In the measuring step, a run-out of the measurement target is measured by the measurement instrument, while the chuck is being rotated by driving a rotation driver.