Crossbeam structure aluminum formwork

The invention discloses a crossbeam structure aluminum formwork, which comprises a fixed plate. Mounting grooves are formed in the positions, close to the two sides, of the fixed plate correspondingly, movable plates are arranged in the mounting grooves, sliding blocks are mounted at the tops and the bottoms of the movable plates, and sliding grooves matched with the sliding blocks are formed in the tops and the bottoms of inner cavities of the mounting grooves; and the two sides of the movable plates extend out of the mounting grooves to be fixedly connected with U-shaped plates, openings ofthe U-shaped plates face the two sides, mounting plates are arranged on the sides, away from the movable plates, of the U-shaped plates, the tops and the bottoms of the mounting plates are movably connected with the inner walls of the U-shaped plates through rotating shafts and bearings, a plurality of evenly-distributed first screw holes are formed in the mounting plates, and plug pin openings are formed in the top of th