Automatic screw locking machine for handle of tow bar box

The utility model relates to an automatic screw locking machine for a handle of a tow bar box. The device comprises a rack, a rotating disc, a positioning assembly, a long bolt feeding assembly, a short bolt feeding assembly and a tightening mechanism. The long bolt feeding assembly comprises a vibration disc, a guide groove connected with the vibration disc, a clamping hand assembly and a feeding mechanism, and two elastic baffles used for blocking long bolts are arranged at the tail end of the guide groove. A handle is installed on the positioning assembly, then the rotating disc moves the positioning assembly to the tightening mechanism, the long bolt feeding assembly and the short bolt feeding assembly convey corresponding bolts to the tightening mechanism, the tightening mechanism screws the bolts into corresponding hole positions of the handle, the rotating disc moves the positioning assembly to the manual position again, and the handle is manually taken down. According to the automatic screwing machine