Pneumatic-hydraulic self-piercing riveting machine

The utility model discloses a pneumatic-hydraulic self-piercing riveting machine. The pneumatic-hydraulic self-piercing riveting machine comprises a pneumatic-hydraulic control system, a self-piercing riveting mechanism, a supporting seat and a circuit control system, wherein the pneumatic-hydraulic control system comprises a pneumatic-hydraulic cylinder, a compressed air pump and various control valves; the self-piercing riveting mechanism comprises a boosting cylinder bracket, an upper punch, a lower punch, a C-shaped framework and a mold; the pneumatic-hydraulic control system is connected with the self-piercing riveting mechanism through the pneumatic-hydraulic cylinder; the whole device is arranged on the supporting seat. The pneumatic-hydraulic self-piercing riveting machine has the advantages of simple structure, low production cost, small structural space occupation area, safety, reliability and the like; the circuit control system is simple, is easy to implement, and is convenient to operate; a full-automatic riveting process is adopted, so that high riveting speed and high efficiency are achieved, and continuous operation can be realized; the pneumatic-hydraulic self-piercing riveting machine can be applied to riveting of tubular rivets, tubular rivets with flanges, oval tubular rivets, rivet-free structures and the like by replacement of punches and molds.