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. 24, 2014
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 internal gear grinding machine achieves space savings and reduction in size of a machine, as well as prevents the tools from being damaged even when an abnormal situation such as a blackout occurs, by a simplifying dressing operation. The internal gear grinding machine for 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 (). When dressing, the threaded grinding wheel () and the disc dresser () are operated in accordance with the helix angle and barrel shape of the threaded grinding wheel (), and the brake mechanism () applies a braking force to a dresser turn drive motor () to enable the disc dresser () to be maintained at a turned position thereof.