Accurate connecting device for plasma spray gun and manipulator

The utility model relates to the technical field of mechanical tool equipment, in particular to an accurate connecting device for a plasma spray gun and a manipulator, which comprises a plasma spray gun main body, one end of the plasma spray gun main body is connected with a first bolt through a thread groove, and a fixing plate is arranged on the outer side of the first bolt. A mounting seat is fixedly mounted at one end of the fixing plate, a sliding groove is formed in the base surface of the mounting seat, a fixing structure is fixedly mounted on the base surface of the sliding block through a through hole, a fixing frame is fixedly mounted on the side, close to the fixing structure, of the base surface of the sliding block, and a second bolt is arranged on the inner side of the fixing frame through a through hole; the outer side of the second bolt is connected with a mechanical arm through a threaded groove, and a first spring is arranged on the side, close to the fixing plate, of the outer side of the f