Automatic bolt screwing device

The utility model discloses an automatic bolt screwing device which comprises a pushing air cylinder and a workpiece conveying and positioning module. The material pushing air cylinder is arranged above the workpiece conveying and positioning module, and the end of the material pushing air cylinder is provided with a profiling support used for placing the bolt assembling position of the workpiece to be installed. The bolt tightening module comprises a positioning mechanism with the three axes adjustable in position, a Z-axis movable seat on the positioning mechanism is provided with a bolt mounting mechanism, the industrial camera is mounted on the outer side of the Z axis of the positioning mechanism, and the automatic bolt feeding module is arranged below the positioning mechanism and used for automatically feeding bolts. The automatic bolt feeding module comprises a bolt vibration disc and a bolt vibration disc mounting support, a bolt jacking air cylinder is arranged on the second frame, a first pneumatic