The intermediate frequency inverter spot projection welding machine is a set of advanced welding equipment. It is widely used, and the welding transformer is small in size and large in output energy. It is more advantageous when used in the one-piece transformer quick welding tongs in the automobile industry. And its superior performance is because the frequency of its welding transformer is increased from the current 50/60Hz of the mains power to 1000Hz, which greatly reduces the weight of the iron core material, and the rectifier diode in the transformer secondary circuit converts the electrical energy into a DC power supply. Welding use.