Traceless welding machine for improving traceless welding precision of aluminum veneer

The utility model discloses a traceless welding machine capable of improving traceless welding precision of aluminum veneers, relates to the technical field of aluminum veneer welding equipment, and provides the following scheme aiming at the problems that when the aluminum veneers are welded, the distance between a welding gun and the aluminum veneers is unstable and the welding effect is poor due to the fact that the aluminum veneers are welded in a handheld welding gun mode. The argon arc welding machine comprises a limiting frame, a screenshot of the limiting frame in the length direction is arranged in a square shape, a PLC is fixedly installed on the side wall of the limiting frame, an argon arc welding machine body is fixedly installed at the top end of the limiting frame, the argon arc welding machine body is connected with a welding gun through a wire, and two symmetrically-arranged rubber rollers are rotationally installed in the limiting frame. Driving assemblies are symmetrically installed in the