Spot welding device applied to vehicle body door cover machining

The utility model belongs to the technical field of spot welding equipment, and discloses a spot welding device applied to car body door cover machining, which comprises a base, a machine body is fixedly mounted at the top of the base, a support plate is fixedly mounted at the right end of the machine body, and transverse blocks are fixedly mounted on two sides of the support plate. By arranging the pneumatic cylinder, the moving plate, the bottom block and the first flexible spring, the square block, the second round block and the second spot welding head can ascend and descend due to operation of the pneumatic cylinder, when the bottom block moves downwards and makes contact with a metal part, the first flexible spring is extruded upwards, and at the moment, due to the elastic force recovery effect of the first flexible spring, the metal part can be fixed. When the metal part is welded, downward force is applied to the bottom block, so that the metal part is pressed and fixed by the bottom block, the situat