Automatic grinding system for exhaust fume collecting hood of range hood

The utility model provides an automatic polishing system for an exhaust fume collecting hood of a range hood. The automatic polishing system comprises a polishing device, a manipulator and a gripper, the grinding device comprises at least two abrasive belts with different particle sizes; the gripper is installed on the mechanical arm and moves along with the mechanical arm, the gripper is used for gripping the exhaust fume collecting hood, the mechanical arm and the gripper convey the exhaust fume collecting hood to the grinding device, and the exhaust fume collecting hood is ground through the two abrasive belts. Compared with the prior art, the automatic polishing system for the exhaust fume collecting hood of the range hood replaces manual polishing, not only solves the problem of potential safety hazards caused by dust in the polishing process, but also improves the polishing efficiency, the polishing quality and the smooth degree of the appearance surface of the exhaust fume collecting hood of the range