摘要:
A welding tool (4) is inserted into an object (3) in a rotation-stopped state, and the welding tool (4) is rotated after insertion, thereby the object (3) is stirred by frictional heat. The welding tool (4) is inserted into the object (3) free of whirling. The welding tool (4) can be prevented from inserting in a position shifted from the target welding position. Namely, the welding tool (4) is precisely inserted in the target welding position and members (1,2) of the object (3) can be welded in the target welding position free of shifting.
摘要:
A spot joining device comprises a joining tool, an induction motor for rotating the joining tool, a servo motor for vertically moving the joining tool along an axis of the joining tool, and a receiving member placed opposite to the joining tool. The joining tool includes a short-column shaped shoulder and a pin protruded downwardly along the axis from a central portion of a lower face of the shoulder at a tip end portion thereof. Two works such as aluminum alloy plates are lapped and placed on a receiving member. When the joining tool is rotated and moved downwardly, a joint spot of the works is heated and softened due to friction heat generated by the rotating pin. Thereby, plastic flow occurs in the vicinity of the joint spot. The vicinity of the joint spot is stirred and the works are fused at the joint spot. Thus, the works are spot-joined.
摘要:
A spot joining device comprises a joining tool (2), an induction motor (3) for rotating the joining tool, a servo motor (4) for vertically moving the joining tool (2) along an axis of the joining tool (2), and a receiving member (7) placed opposite to the joining tool (2). The joining tool includes a short-column shaped shoulder (20) and a pin (21) protruded downwardly along the axis from a central portion of a lower face of the shoulder at a tip end portion thereof. Two works (30,31) such as aluminum alloy plates are lapped and placed on a receiving member. When the joining tool is rotated and moved downwardly, a joint spot of the works is heated and softened due to friction heat generated by the rotating pin. Thereby, plastic flow occurs in the vicinity of the joint spot. The vicinity of the joint spot is stirred and the works are fused at the joint spot. Thus, the works are spot-joined.