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:
Jun. 04, 2019
Filed:
May. 26, 2014
Applicant:
Mitsubishi Heavy Industries Machine Tool Co., Ltd., Ritto-shi, Shiga, JP;
Inventors:
Assignee:
MITSUBISHI HEAVY INDUSTRIES MACHINE TOOL CO., LTD., Ritto-Shi, Shiga, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23F 5/04 (2006.01); B23F 5/02 (2006.01); B24B 53/075 (2006.01); B23F 23/12 (2006.01);
U.S. Cl.
CPC ...
B23F 5/04 (2013.01); B23F 5/02 (2013.01); B23F 23/1225 (2013.01); B24B 53/075 (2013.01);
Abstract
Provided is an internal gear grinding method that makes it possible to grind an internal gear having arc-shaped teeth in a short amount of time. To this end, an internal gear having arc-shaped teeth and a threaded grindstone with a barrel shape having blades with a shape corresponding to the arc shape of the teeth are engaged at a predetermined axis intersection angle, and the internal gear and the threaded grindstone are made to rotate in synchronization with each other so that the tooth surface of the internal gear is ground by the blade surface of the threaded grindstone.