Four-axis linkage automatic spot welding machine

A four-axis linkage automatic spot welding machine is used for welding of welding spots at various spatial positions in automobile body welding production, and solves the problems of high equipment cost and high labor intensity of manual operation. The four-axis linkage automatic spot welding machine comprises a parallel moving mechanism, a rotating mechanism, a welding clamp suspension mechanism, a welding clamp and a base, wherein the base is of a frame structure, the parallel moving mechanism is mounted on the base, the rotating mechanism is connected with the parallel moving mechanism through a connecting support, the welding clamp suspension mechanism is fixedly connected with the rotating mechanism, and the welding clamp is mounted on the welding clamp suspension mechanism. The four-axis linkage automatic spot welding machine has the advantages of simplicity in operation, safety and reliability, is applied to an automobile body part welding production line, and on the premise of ensuring the welding quality of a workpiece, the labor intensity of operators can be remarkably reduced, and equipment cost input is reduced.