Spin riveting machine

The utility model discloses a spin riveting machine which comprises a vertically-arranged linear module, a riveting head arranged on the linear module and a tool assembly matched with a hub bearing, the hub bearing comprises an inner ring, an outer ring flange and a flange shaft, the end of the flange shaft extends out of the end face of the inner ring to form a hollow shaft, the hollow shaft is used for spin riveting to form a flange arranged on the inner ring in a pressing mode, and the tool assembly is matched with the hub bearing. The riveting head is obliquely arranged on the linear module through a driven shaft, the tool assembly comprises a lower die frame used for fixing a flange shaft of the hub bearing, the bottom of the lower die frame is connected with a rotating mechanism, and the rotating mechanism drives the flange shaft to rotate; according to the rotary riveting machine, the flange shaft is driven to rotate through the rotating mechanism, the riveting head is driven to rotate under the drivin