Yes, with the development of science and technology, the progress of society and the increase of labor cost, the old traditional mechanical rigid clutch punch will be gradually replaced and eliminated. Although the rigid clutch is cheap, it has some disadvantages, such as low reliability, poor safety (easy to produce continuous stamping), inability to manufacture large-tonnage punching machines, and high noise. The new pneumatic friction clutch punch has high reliability and safety (photoelectric protection, safety door and other protection measures can be configured), and at present it can realize a four-point (four-link) punch with a tonnage of more than several thousand tons. Moreover, at present, in the period of social transformation, there are more and more automatic production lines such as multi-station and wide-table continuous dies, and it is impossible to realize rigid clutch punch.