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. 07, 2015
Filed:
Nov. 25, 2011
Yoshikoto Yanase, Tokyo, JP;
Masashi Ochi, Tokyo, JP;
Yasuhiro Nakamichi, Tokyo, JP;
Mitsubishi Heavy Industries, Ltd., Tokyo, JP;
Abstract
Provided is a gear grinding method capable of improving processing accuracy and easily adjusting the crowning shape by simplifying a processing operation. To this end, a work piece (W) is ground by a gear-shaped grinding stone () having a drum shape such that crowning along a tooth trace direction is applied to the work piece (W) by applying a relative feed in a feed direction (D) that intersects a work piece rotation axis (C) at a predetermined first diagonal angle (θ1) between the work piece (W) and the gear-shaped grinding stone () while the work piece (W) and the gear-shaped grinding stone () are synchronously rotated in the state of being engaged so as to have a predetermined crossed axes angle (Σ), and the curvature in a grinding stone width direction, which defines the drum shape of the gear-shaped grinding stone (), and the first diagonal angle (θ1) are set according to the crowning shape of the work piece (W).