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:
Jul. 10, 2018
Filed:
Oct. 22, 2014
Kyokutoh Co., Ltd., Aichi, JP;
Kotaro Nakajima, Aichi, JP;
KYOKUTOH CO., LTD, Nagoya, JP;
Abstract
Provided is a method for grinding electrode tips such that the method is capable of detecting irregular grinding when the maximum torque does not occur. Specifically, a tip dresser includes a holder holding a cutter, a servo motor unit allowing the holder to rotate, and a controller controlling the operation of the servo motor unit. The servo motor unit outputs a torque occurrence signal to the controller when a load torque reaches a predetermined value in regular grinding of a pair of electrode tips. The controller detects irregular grinding when not receiving the torque occurrence signal within a time that corresponds to an elapsed time in the regular grinding.