Single-point riveting device

The utility model discloses a single-point riveting device. Wherein the male die structure and the female die structure are arranged on the two sides of the riveting die frame. A female die pressing plate is arranged at the riveting position of the female die. The male die structure is provided with a riveting oil cylinder and a single-point riveting compression material returning device connectedwith the riveting oil cylinder through a riveting telescopic shaft arranged at the front end of the riveting oil cylinder, and the single-point riveting compression material returning device comprises a guide sleeve arranged on the riveting telescopic shaft in a sleeving mode, a male die pressing sleeve arranged at the front end of the riveting telescopic shaft, a riveting punch and a compressionmaterial returning spring. According to the utility model, the design structure of material returning of the compression spring is adopted; compared with the traditional integral spring material returning, the use flexibility