Automatic welding gun cleaning device

The invention discloses an automatic welding gun cleaning device which comprises a box body, a shredding assembly, a material receiving assembly and an oil spraying assembly, a to-be-machined and cleaned welding gun is arranged above the box body, sliding rails are fixedly arranged on the two sides of the box body, sliding blocks are slidably arranged in the sliding rails, notches are formed in sides of the sliding rails, one side of each sliding block is fixedly connected with an end of a U-shaped frame, and one side of the lower portion of the U-shaped frame is fixedly connected with a first hydraulic rod. By additionally arranging the shredding assembly, the material receiving assembly and the oil spraying assembly, shredding, material receiving and cleaning can be carried out in the same vertical direction, and the device is simple in structure, the shredding assembly, the material receiving assembly and the oil spraying assembly can be located in the same vertical direction, the welding gun is prevented