Opening covering machine for forming and processing opening of steel cylinder

The utility model relates to the technical field of steel cylinder processing and manufacturing, and discloses an opening covering machine for forming and processing a steel cylinder opening, which comprises a working table, a first supporting seat is arranged on one side of the outer wall of the working table, a sliding groove is formed in the middle of the upper surface of the working table, and a driving motor is fixedly connected to the upper surface of the first supporting seat. The output end of the driving motor is fixedly connected with a lead screw, and one end of the lead screw is rotationally connected to one side of the inner wall of the workbench. According to the steel cylinder necking device, necking dies can be clamped and fixed through the clamping disc and the clamping jaws, meanwhile, necking dies of different models can be clamped, steel cylinder necking can be more diversified, the steel cylinder necking device is suitable for necking of different specifications, the driving motor is star