Automatic surface polishing device

The utility model discloses an automatic surface polishing device, belongs to the field of workpiece polishing machining, and aims to solve the problems that in the workpiece polishing process, a polishing device and a workpiece are exposed in the environment, metal filings generated in the workpiece polishing process splash, workers are prone to being hurt, and potential safety hazards exist. A motor is started to work, a lead screw is promoted to rotate, tempered glass can be driven to move up and down through a sliding block, so that an opening can be opened, a workpiece can be put in at the moment, otherwise, the opening can be closed through the tempered glass, and through cooperation of an electric push rod, a limiting block, a machine box and a polishing piece, the polishing effect is improved. And a workpiece can be polished, so that scraps are prevented from splashing out through an opening, and the injury to an operator is avoided. 本实用新型公开了一种自动表面打磨装置，属于工件打磨加工领域，为了解决在对工件打磨过程中，打磨装置和工件均裸露在环境中，对工件打磨时产生的