Connecting plate assembly welding clamp

A connecting plate assembly welding clamp comprises a main base, and the upper side of the main base is fixedly connected with a pressing piece base and a clamp base. The top of the pressing piece base is connected with a pressing rod through a transmission assembly, pressing pieces are arranged at the end, extending to the upper side of the clamp, of the pressing rod, and the pressing pieces comprise the fixed pressing piece and the movable pressing piece arranged in the middle of the fixed pressing piece. The upper side of the clamp base is fixedly connected with a workpiece clamp; a positioning hole is formed in the top of the clamp base; two stations are arranged on the workpiece clamp, a left limiting hole and a right limiting hole corresponding to the positioning holes are formed in the positions corresponding to the two stations respectively, and the left limiting hole and the right limiting hole are internally connected with the positioning holes through fixing pieces. Two welding stations are arrange