Welding alignment device for steel skeleton light plate

The utility model discloses a steel skeleton light plate welding alignment device which comprises a bottom plate, a first L-shaped plate is fixedly connected to the upper surface of the bottom plate, a first vertical plate is fixedly connected to the side, located on the first L-shaped plate, of the bottom plate, a groove is formed in the upper surface of the bottom plate, and a sliding plate is slidably connected to the interior of the groove. A second L-shaped plate is fixedly connected to the upper surface of the sliding plate, a limiting block is fixedly connected to the side, opposite to the first L-shaped plate, of the second L-shaped plate, a limiting rod is sleeved with the limiting block, a third spring is sleeved with the surface of the limiting rod, and the two ends of the third spring are fixedly connected with the outer wall of the limiting block and the outer wall of the limiting rod correspondingly; a fixing plate is fixedly connected to the upper surface of the sliding plate, a first spring is