High-strength bridge steel structure welding device

The utility model discloses a high-strength bridge steel structure welding device, and relates to the technical field of bridge steel processing, the high-strength bridge steel structure welding device comprises a placing rack, the top of the placing rack is fixedly connected with a placing plate, one side of the top of the placing plate is fixedly connected with an L-shaped plate, the L-shaped plate is fixedly connected with a machine body, the bottom of the machine body is fixedly connected with a welding head, and the welding head is fixedly connected with the welding head. A protective plate is fixedly connected to the outer wall of the placing frame, a top plate is fixedly connected to the top of the protective plate, two mounting openings are formed in the top of the top plate, cross rods are fixedly connected to the interiors of the mounting openings, the cross rods are rotationally sleeved with guide plates, and guide plates are slidably connected to the interiors of the guide plates; the outer walls