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:
Oct. 06, 2020
Filed:
Oct. 07, 2016
Mayekawa Mfg. Co., Ltd., Tokyo, JP;
Hisashi Kitagawa, Tokyo, JP;
Yoshiyuki Oomasa, Tokyo, JP;
Hideki Shudai, Tokyo, JP;
Yoshihiko Ueno, Tokyo, JP;
Daisuke Miyazaki, Tokyo, JP;
Masato Takeda, Tokyo, JP;
Toshinori Ohtomo, Tokyo, JP;
Toshikazu Kamae, Tokyo, JP;
MAYEKAWA MFG. CO., LTD., Tokyo, JP;
Abstract
A welding device according to some embodiments includes a rotary table fixing two irregular shaped plates which are overlapped, a torch unit including a welding torch positioned to face outer peripheral edges of the two irregular shaped plates fixed to the rotary table, a torch actuator configured to move the welding torch toward and away from the outer peripheral edges, an after-shielding part mounted to the welding torch on downstream side in a rotational direction of the rotary table and having nozzles arranged along the rotational direction, configured to jet shielding gas to the outer peripheral edges, and including a first nozzle positioned upstream and a second nozzle positioned downstream of the first nozzle in the rotational direction, and a controller configured to control an orientation of the nozzle in a direction of decreasing a shielding-gas-jetting distance between the second nozzle and the outer peripheral edges welded by the welding torch.