US 12,325,084 B2
Friction stir welding attachment, friction stir welding head, and friction stir welding device
Kouichi Katoh, Shizuoka (JP); Hirohiko Matsuzaki, Shizuoka (JP); and Toshinao Aoki, Shizuoka (JP)
Assigned to SHIBAURA MACHINE CO., LTD., Tokyo (JP)
Appl. No. 18/272,000
Filed by SHIBAURA MACHINE CO., LTD., Tokyo (JP)
PCT Filed Dec. 24, 2021, PCT No. PCT/JP2021/048435
§ 371(c)(1), (2) Date Jul. 12, 2023,
PCT Pub. No. WO2022/153851, PCT Pub. Date Jul. 21, 2022.
Claims priority of application No. 2021-005049 (JP), filed on Jan. 15, 2021.
Prior Publication US 2024/0066622 A1, Feb. 29, 2024
Int. Cl. B23K 20/00 (2006.01); B23K 20/12 (2006.01); B23Q 5/04 (2006.01)
CPC B23K 20/121 (2013.01) [B23K 20/125 (2013.01); B23Q 5/04 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A friction stir welding attachment comprising:
a body configured to be attached to a spindle supported by a spindle head of a machine tool;
a metalworking shaft rotatably supported by the body, wherein a welding tool is attachable to the metalworking shaft;
a plurality of air motors provided in the body; and
a transmission mechanism configured to transmit a rotation of each of the plurality of air motors to the metalworking shaft.