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. 23, 2011
Filed:
Jun. 29, 2009
Applicant:
Hiroshi Inagaki, Niwa-Gun, JP;
Inventor:
Hiroshi Inagaki, Niwa-Gun, JP;
Assignee:
Okuma Corporation, Niwa-Gun, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05B 21/00 (2006.01); G05B 13/00 (2006.01); G05B 15/00 (2006.01); G01M 1/38 (2006.01); G05D 23/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A stable rotation speed is acquired by finely changing a rotation speed of a rotary shaftbased on an expected stable rotation speed, and calculating an amount of change of a k' number, and the like. Therefore, a more accurate rotation speed can be acquired, and 'chatter vibration' generated during machining can be suppressed more effectively than a conventional method. As a result, a quality of a workpiece surface can be improved, and a tool wear and the like can be suppressed.