Welding machine for steel structure material production

The welding machine for steel structure material production comprises a base, a fixing frame is fixedly connected to one side of the top of the base, and a fixing assembly used for positioning steel is arranged on the outer side of the fixing frame; a first annular frame is arranged at the top of the base, a first inner gear ring is fixedly connected into the first annular frame, the other steel wire rope is guided through a second guide roller, a first guide roller, a limiting frame and a supporting rod, the steel wire rope pulls a limiting seat to be close to the circle center of a rotating disc, and then the amplitude of a swing plate is adjusted; if the welding gun head moves away from the steel, a limiting seat is pulled to move through a second guide roller, so that the welding swing amplitude of the welding gun head is increased, the welding lines are increased, the welding gun head is driven to move through a mounting plate, the swing amplitude is automatically adjusted, and the welding quality is imp