Pneumatic point projection welding machine for electrical cabinet plate production

The utility model discloses a pneumatic point projection welding machine for electrical cabinet plate production, and relates to the technical field of point projection welding machines. The welding device comprises a bottom plate and a welding device, the welding device is fixedly connected to one side of the top end of the bottom plate, a lifting plate is movably arranged at the top end of the middle of the bottom plate, a clamping device is fixedly arranged at the top end of the lifting plate, a lifting device is fixedly arranged at the bottom end of the lifting plate, and a containing box is fixedly installed at the top end of the middle of the lifting plate. Symmetrically distributed through holes are formed in the two sides of the placement box; by arranging a first gear, racks and a sliding plate, a fixing column is driven to rotate to drive the first gear to rotate, so that the two racks are close to each other, the racks drive the sliding plate to slide in a sliding groove rail, the two clamping plat