Wire harness defective product detection device

The utility model relates to the technical field of mechanical equipment, in particular to a defective wiring harness detection device, which comprises a supporting bracket, a carrier detection conveying mechanism for transporting and detecting wiring harnesses, and a wiring harness removing and mounting gripper structure for removing defective wiring harnesses on carriers and supplementing the carriers with insufficient number of wiring harnesses during displacement in specified carriers, when the lifting module ascends, the first backflow conveying line is complemented, and after the lifting module descends, the empty disc carrier is conveyed and flows back to the carrier backflow lifting platform of the carrier backflow speed multiplication chain through the wire harness removing, installing and processing mechanism; and the carrier shifting manipulator shifts the carrier with the detected wire harness from the carrier detection conveying mechanism to the carrier shifting mechanism on the first backflow co