US 12,459,045 B2
Welding device for non-circular plate and producing method for non-circular plate structure
Keisuke Yamada, Tokyo (JP); Tetsuji Terada, Tokyo (JP); Daisuke Miyazaki, Tokyo (JP); and Hideki Shudai, Tokyo (JP)
Assigned to MAYEKAWA MFG. CO., LTD., Tokyo (JP)
Appl. No. 17/612,455
Filed by MAYEKAWA MFG. CO., LTD., Tokyo (JP)
PCT Filed Jun. 11, 2019, PCT No. PCT/JP2019/023031
§ 371(c)(1), (2) Date Nov. 18, 2021,
PCT Pub. No. WO2020/250295, PCT Pub. Date Dec. 17, 2020.
Prior Publication US 2022/0234127 A1, Jul. 28, 2022
Int. Cl. B23K 9/00 (2006.01); B23K 9/167 (2006.01); B23K 101/14 (2006.01)
CPC B23K 9/0026 (2013.01) [B23K 9/167 (2013.01); B23K 2101/14 (2018.08)] 18 Claims
OG exemplary drawing
 
1. A welding device for a non-circular plate, comprising:
a chuck for gripping and rotatably supporting a plurality of laminated non-circular plates;
a welding torch for welding outer peripheral edges of adjacent non-circular plates among the plurality of laminated non-circular plates;
a stationary shield box; and
a movable shield box which is position-adjustable with respect to the welding torch so as to form a shield space surrounding the welding torch with the stationary shield box,
wherein the movable shield box is mounted on the stationary shield box to be rotatable around a support shaft such that an interior space of the stationary shield box and an interior space of the movable shield box form a continuous space, and a part of the movable shield box is located inside the interior space of the stationary shield box, and
wherein the support shaft is disposed on a portion of the stationary shield box overlapping with the part of the movable shield box located inside the interior space of the stationary shield box, the part of the movable shield box located inside the interior space of the stationary shield box being movable within the interior space along an arc centered on the support shaft.