Resistance welding machine and gas circuit control system for same

The invention provides a resistance welding machine and a gas circuit control system for the resistance welding machine, and belongs to the field of gas circuit control systems.The resistance welding machine comprises a gas source assembly triplet, a main gas source pressure switch, a gas storage tank, a power-off protection valve, a gas cut-off protection valve, a welding cylinder, a third electromagnetic valve, a first exhaust electromagnetic valve, a second exhaust electromagnetic valve, a first flow limiting valve and a silencer; a first electromagnetic valve, a welding pressure switch, a pressure regulating valve, a one-way valve, a second electromagnetic valve and a second flow limiting valve. The first electromagnetic valve and the first exhaust electromagnetic valve promote the piston rod to move in an accelerated mode, and the welding efficiency is greatly improved. The pressure regulating valve, the second exhaust electromagnetic valve and the first flow limiting valve can reduce the speed of the pi