Device for detecting fracture defect of copper rod

The utility model relates to the technical field of copper bar inspection devices, in particular to a copper bar fracture defect inspection device which comprises a base, a first limiting piece, a second limiting piece, a cutting piece and an extrusion piece, the first limiting piece and the second limiting piece are both arranged on the base, a copper bar is located between the first limiting piece and the second limiting piece, and the extrusion piece is arranged on the base. The cutting-off piece is located at the end, away from the second limiting piece, of the first limiting piece, and the extrusion piece is located between the cutting-off device and the second limiting piece and located on the side, away from the first limiting piece, of the copper rod. Before the cutting-off piece is in contact with the copper bar, the extrusion piece extrudes the dent or the notch on the copper bar, and then the copper bar at the notch is extruded by the cutting-off piece, so that the copper bar is provided with the n