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:
Aug. 21, 2001
Filed:
Oct. 08, 1999
Shigeru Shimogama, Kawanishi, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
A welding apparatus, wherein the robot controller of the teaching playback type robot thereof is combined with the control portion of the welding power source thereof, each of the control portions of the robot controller and the welding power source is a digital-control type and provided with a digital communication control portion, and welding condition commands including at least a welding current command value are transmitted by using digital data through the communication control portions from the robot controller to the control portion of the welding power source. The present invention can thus provide a welding apparatus excluding conversion errors because of the existence of analog circuits.