Perforating device for steel structure production and machining

The utility model relates to the technical field of steel structure production and processing, and discloses a punching device for steel structure production and processing, which comprises a mounting table, the top of the mounting table is provided with a mounting frame, and the inner top wall of the mounting frame is provided with a punching assembly in sliding connection with the left side and the right side of the inner wall of the mounting frame. A fixing mechanism which extends to the top of the mounting table and is located in the mounting frame is arranged in the mounting table. According to the punching device for steel structure production and machining, a servo motor is started to drive a cam to rotate, a strip-shaped plate is pushed to move under supporting of a stand column, a telescopic spring is matched to make the strip-shaped plate move up and down in a reciprocating mode, a movable plate is extruded to move through a pulley, the movable plate moves more stably through supporting of a support