The spot welding machine system of general welding equipment is composed of three parts: mechanical device, power supply device, and control device. The normal state is that the welding tongs are opened for a short stroke. When the control button is switched to the "power on" position, the handle switch is pressed to clamp and pressurize the welding tongs. At the same time, the current returns to the short stroke after completing a welding cycle under the control of the control system. Open state.

The main power circuit is composed of resistance welding transformer, thyristor unit, main power switch, welding circuit, etc. The strength, rigidity, and heat generation of the welding tongs must meet certain requirements, and it must have good electrical and thermal conductivity. At the same time, the welding tongs are required to be cooled by water. Therefore, a new type of welding tongs that can withstand a pressure of 400kg is selected for the electrode arm of the welding tongs.

The control device mainly provides signals to control the action of the resistance welding machine to turn on and off the welding current, control the value of the welding current, and perform fault monitoring and handling.

The above is the structural characteristics of the general welding equipment introduced by Shandong CNC welding equipment. I hope that the above introduction can give you some substantial help. If you want to know more information, you can directly follow our company website.