Punching machine for producing and processing glass door frame

The utility model discloses a punching machine for producing and processing glass door frames, which comprises a bottom plate, a concave plate and a limiting clamping mechanism, the concave plate is arranged at the top of the bottom plate, two cylinders are arranged at the top of the inner wall of the concave plate, the bottoms of the two cylinders are fixedly connected through a movable plate, the limiting clamping mechanism is arranged on the movable plate, and the limiting clamping mechanism is arranged on the concave plate. The limiting and clamping mechanism comprises two connecting blocks, the two connecting blocks are arranged on the left side and the right side of the top of the movable plate correspondingly, and moving blocks are installed at the bottoms of the connecting blocks. Through mutual cooperation of the connecting block, the moving block, the limiting plate, the rubber plate, the positioning rod and the elastic piece, the situation that the glass door frame needs to be clamped and fixed wit