Automatic workpiece grinding device

The utility model provides an automatic workpiece polishing device, which belongs to the technical field of workpiece processing and comprises a base, a slewing bearing, a support plate, a workbench, a support frame, a connecting block, a lead screw, a moving seat, an electric push rod, a connecting seat and a polishing mechanism. In order to solve the problems that the workpiece polishing effect is poor, the quality of finished products is affected, and the working efficiency needs to be improved, the device adopts a rotating lead screw to enable the lead screw to rotate forwards or reversely, and drives a moving seat to move left and right along the lead screw, so that the position of a polishing mechanism is adjusted, and the surface of a workpiece is polished; and the outer ring of the slewing bearing is controlled to rotate, the workpiece is driven to rotate, the outer surface of the workpiece is conveniently polished, the electric push rod stretches out and draws back, the polishing mechanism is driven