Self-positioning bolt heading machine

The utility model discloses a self-positioning bolt heading machine which comprises a bottom plate, a supporting plate is fixedly connected to the bottom plate, a workbench is fixedly connected to the supporting plate, a plurality of storage grooves are formed in the workbench, the workbench is fixedly connected with the bottom plate, a connecting plate is fixedly connected to the supporting plate, and the connecting plate is fixedly connected to the supporting plate. The connecting plate is fixedly connected with an air cylinder, a driving rod of the air cylinder is in sliding connection with the connecting plate, the outer side of the driving rod is sleeved with a connecting base, the interior of the connecting base is connected with a limiting screw through threads, and the tail end of the limiting screw is connected with the driving rod in a clamped mode. By designing the positioning block, when a bolt is subjected to stamping and heading, the air cylinder drives the positioning block to move, the positio