Automatic welding machine

The utility model relates to the technical field of automatic welding machines, and discloses an automatic welding machine which comprises a workbench, the workbench is provided with two baffles, the bottoms of the two baffles are fixedly connected to the left side and the right side of the top of the workbench respectively, and each baffle is provided with four rod grooves; according to the clamping mechanism, a first hydraulic rod is fixedly installed on the inner wall of a rod groove above the front end of a left baffle, the left side of a first push arm is fixedly connected to the right end of an inner rod of the first hydraulic rod, an arc clamp is fixedly installed on the right side of the first push arm, and a second hydraulic rod is fixedly installed on the inner wall of the rod groove below the front end of the left baffle. A second hydraulic rod is adjusted to enable an inner rod of the second hydraulic rod to drive a second push arm to move, a clamping plate is pushed to clamp a battery protection