Improved fixing structure of makeup and breakout machine

The utility model discloses an improved screw-on machine fixing structure, which belongs to the technical field of screw-on machines and is technically characterized by comprising a platform, a first supporting frame and a second supporting frame are welded above the platform, the second supporting frame is positioned on the left side of the first supporting frame, a back-up wrench is connected above the first supporting frame through a bolt, and a screw-on screw-off wrench is arranged on the back-up wrench. The upper portion of the second bearing frame is in bolted connection with main pliers, the back-up pliers are internally and detachably connected with open mouth pliers, an elastic pad is bonded to one side of the open mouth pliers, a connecting plate is bonded to the side, away from the open mouth pliers, of the elastic pad, a spring is welded to one side of the connecting plate, and a rubber pad is detachably connected to the inner side of the connecting plate. And by installing a spring, a rubber pad,