Automatic stopping system for part falling of polishing machine

The automatic stopping system comprises a device body, the device body comprises an induction device, a first motor, a second motor, a connecting ring and a first spring, the induction device is fixedly mounted at the top of the device body, and the top of the induction device and the bottom of the first motor are fixedly mounted; the top of the sensing device is welded to the bottom of the side fixing block, the side face of the side fixing block is slidably connected with one end of the box body, three cabin doors are formed in the surface of the box body, the other end of the box body is welded to the side face of the rotating disc, the rotating disc is connected with the output end of a second motor, and the bottom of the second motor is welded to the top of the device body. The side face of the connecting ring is welded to the first sliding block, when a part falls in the polishing process, the part can make contact with the induction main shaft and the induction auxiliary shaft, so that the induction ma