Positioning device for fastener assembly

The utility model discloses a positioning device for fastener assembly, which comprises a working table, a plurality of groups of positioning components are arranged on the side edge of the working table, and each positioning component comprises a support frame, a pressing mechanism and a pop-up mechanism; the supporting frame is provided with a sliding cavity, the sliding cavity is arranged in the length direction of the supporting frame, and the end, away from the workbench, of the sliding cavity is of a plane structure and provided with a through hole. The abutting mechanism is located in the sliding cavity and comprises an electric telescopic rod and an abutting plate, the abutting plate is arranged at the end of the electric telescopic rod and right faces the plane structure, the pop-up mechanism comprises a supporting cylinder, a guide rod, a spring and a push plate, the end of the supporting cylinder is inserted into the through hole, and one end of the guide rod penetrates through the end wall of the