Automatic welding equipment for axle

The utility model discloses an automatic axle welding device which comprises a device box, a clamping part capable of clamping an axle and driving the axle to rotate, two welding guns and a moving part capable of enabling the two welding guns to move in a bilateral symmetry mode, and the device box comprises a platform, two vertical plates fixed to the left side and the right side of the platform and a cover plate arranged on the tops of the two vertical plates. Each welding gun is arranged on a moving part through a height adjusting part, and the moving part is connected with the equipment box; the clamping part capable of clamping the axle and driving the axle to rotate, the two welding guns and the moving part capable of enabling the two welding guns to move in a bilateral symmetry mode are arranged in the equipment box, welding work of all positions of the axle can be automatically completed by symmetrically moving the two welding guns and cooperating with rotation of the axle, the other two welding guns