High-frequency long-service-life pneumatic leather punching machine head

The utility model discloses a high-frequency long-service-life pneumatic leather punching machine head which structurally comprises a lifting rod, and a punching knife is arranged at one end of the lifting rod. The guide sleeve is in sliding fit with the lifting rod in the punching direction and is in torque transmission connection with the lifting rod around a central axis extending in the punching direction; the driving end of the lifting driving device is in running fit with the lifting rod around the central axis and is relatively fixed in the punching direction; the driving end of the rotary driving device is in transmission connection with the guide sleeve so as to drive the lifting rod to rotate around the central axis. According to the stamping knife, the rotary cutting is formed due to rotation when the stamping knife is used for stamping, so that the rotary cutting is performed during stamping, the stress of the cutting edge of the stamping knife can be greatly reduced, the service life of the stamp