| 摘要 |
PROBLEM TO BE SOLVED: To provide spot welding equipment capable of achieving the space saving of a welding line and the cost reduction in facilities, and further capable of simultaneous spot welding without interference by a robot even in the case where welding points are approached.SOLUTION: Two parts of welding points can be simultaneously spot-welded by a single welding robot 10 since two shot spot welding equipment 16 having a pair of spot welding guns 22, 24 are arranged at one articulated robot 12. Particularly, in the two shot spot welding equipment 16, a pair of the spot welding guns 22, 24 are arranged at a single supporting shaft 20, turning is performed around a shaft center S by a pitch changing apparatus 72 to change a pitch P between mutual pinching shaft lines O1 and O2, and further, the mutual level difference of the welding positions in the pinching shaft line directions O1, O2 can be changed by a level difference changing apparatus 100, thus the two parts of the welding points in various aspects with different pitches P or level differences can be simultaneously spot-welded. |
