Motor abnormal sound detection device

The utility model relates to a motor abnormal sound detection device comprising a cabinet, a workbench horizontally arranged in the cabinet, a carrying platform assembly arranged on the workbench and used for placing a motor, and a detection assembly arranged on the workbench and used for detecting whether the motor makes abnormal sound. The carrying table assembly comprises a positioning base, a V-shaped positioning groove formed in the top of the positioning base, a groove formed in the bottom of the positioning base and communicated with the positioning groove, and a clamping jaw air cylinder arranged in the groove. Two clamping jaws of the clamping jaw air cylinder extend into the positioning groove and are located on the two sides of the positioning groove correspondingly. The detection assembly comprises a mounting base and a laser vibration sensor which is vertically arranged on the mounting base and located over the motor. The detection end of the laser vibration sensor points to the motor; according