Pneumatic riveting machine

The utility model discloses a pneumatic riveting machine which comprises a base, supporting plates are fixedly connected to the two sides of the surface of the top of the base, supporting grooves are formed in the surfaces of the inner sides of the supporting plates, a lifting notch is vertically formed in the center of the left side of an inner cavity of the left supporting groove, and elastic rubber rings are embedded in inner cavities of the supporting grooves and inner cavities of the lifting notches. Supporting springs are fixedly connected to the four corners of the top surface of the base and located on the inner sides of the supporting plates. According to the pneumatic riveting machine, the processed materials and the material placing platform can be subjected to limiting and buffering protection, so that the working quality of the pneumatic riveting machine is higher, and the problem that the processed materials and the material placing platform cannot be subjected to limiting and buffering protecti