Hexagon nut internal thread damage detection device

The utility model discloses a hexagon nut internal thread damage detection device in the technical field of hexagon nut factory detection, which comprises an operation frame, a sliding groove is arranged at the top end inside the operation frame, the structure is reasonable, the hexagon nut internal thread damage detection device is provided with a damage detection assembly, and the damage detection assembly is arranged at the output end of an air cylinder on a supporting frame. The support frame is installed on the outer wall of the threaded rod through the moving block in a threaded connection mode, the motor drives the threaded rod to rotate so as to drive the damage detection assembly to move to the needed position, the damage detection assembly has the rotating effect, a plurality of hexagon nuts needing to be detected are placed in the hexagon placing grooves in the operation table, and the damage detection efficiency is improved. The damage detection assembly is lowered by the air cylinder, and damage