QY-5B is a three-column frame, and 5NBb is a welded body. The pneumatic press/pneumatic punch/pneumatic riveting machine uses compressed air as the power to amplify the input ordinary air pressure to the required output force. During the pressing process, any position senses that the workpiece starts to pressurize, and realizes "soft stamping" to reduce the processing time. Impact, improve stamping accuracy, ensure damage-free stamping, and achieve low energy consumption, no pollution, and high-