| 摘要 |
PROBLEM TO BE SOLVED: To provide a multiple welding gun structure which can be made small in size and light in weight. SOLUTION: In the multiple welding gun structure, a first welding gun 11 and a second welding gun 12 capable of simultaneously executing the welding are mounted on a robot arm 13 of one welding robot. The multiple welding gun structure has a pitch changing device 15 which is arranged between the first welding gun 11 and the second welding gun 12, and attaches/detaches these welding guns to/from each other by turning the second welding gun 12 with respect to the first welding gun 11, and changes the gun pitch P between the first welding gun 11 and the second welding gun 12. COPYRIGHT: (C)2011,JPO&INPIT
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