Device for automatically detecting axial and radial run-out of motor shaft

The invention discloses a device for automatically detecting axial and radial run-out of a motor shaft. The device comprises a main box body; a conveying cavity with a leftward opening and a rightwardopening is formed in the main box body; the front side of the conveying cavity is communicated with an axial detection cavity; a wide gear cavity is communicated with the tail end of the rear side ofthe upper end surface of the axial detection cavity; the upper end face of the conveying cavity is communicated with a radial detection cavity located on the rear side of the wide gear cavity. An axial run-out detector and a radial run-out detector of the device are respectively abutted against an end face bus and a side bus of a motor shaft at the same time; the motor shaft is driven to rotate through the hollow shaft; and axial run-out and radial run-out of the motor shaft are detected at the same time. Therefore, the working efficiency is improved, the whole detection process is automatically executed by a machine, the work of detection personnel is reduced, the detection accuracy and stability are improved, and for unqualified products, the device can perform dotting and marking through a marking pen, so that the unqualified products are convenient to distinguish.