Small steel cylinder welding and grinding fixing clamp

The utility model relates to the technical field of welding systems, and discloses a small steel cylinder welding and polishing fixing clamp which comprises a machining table, sliding grooves are formed in the two sides of the upper surface of the machining table, a double-head motor is fixedly connected to the middle of the inner bottom wall of each sliding groove, and the output end of each double-head motor is fixedly connected with a lead screw. And the outer surfaces of the lead screws are in threaded connection with sliding blocks, the upper surfaces of the sliding blocks are fixedly connected with moving plates, the outer surfaces of the adjacent sides of the moving plates are rotationally connected with rotating discs, one ends of the rotating discs are fixedly connected with connecting rods, and hydraulic cylinders are fixedly connected to the interiors of the connecting rods. According to the welding and polishing device, the hydraulic cylinder and the rotating plate are arranged, so that the clampi