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:
Feb. 03, 2015
Filed:
Dec. 16, 2009
Masashi Ochi, Ritto, JP;
Yoshikoto Yanase, Ritto, JP;
Masashi Ochi, Ritto, JP;
Yoshikoto Yanase, Ritto, JP;
Mitsubishi Heavy Industries, Ltd., Tokyo, JP;
Abstract
An object is to provide an internal gear grinding machine and a dressing method for a barrel-shaped threaded tool which make it possible to achieve space savings and reduce the size of a machine by simplifying dressing operation. To achieve the object, an internal gear grinding machine for use in grinding a workpiece (W) by synchronously rotating the workpiece (W) and a barrel-shaped threaded grinding wheel () in mesh with each other includes a dressing device () for dressing the threaded tool () by meshing the threaded grinding wheel () with a disk dresser (). At the time of dressing, the threaded grinding wheel () and the disc dresser () are operated in accordance with the helix angle and the barrel shape of the threaded grinding wheel ().