The deburring and rounding function is completed by the sanding wheel on the universal roller brush mechanism. The two pairs of sanding wheels of the universal roller brush mechanism are horizontally opposed, rotating in reverse at high speed, and rotating horizontally together under the action of the equipment revolution mechanism. The high-speed rotation of the sanding wheel generates centrifugal force to scrape and rub the contour edges of the workpiece. Combined with the overall revolution, the workpiece can achieve a universal and uniform chamfer at any position on the conveyor belt, making all contour edges of the product smooth and round, and obtaining a consistent R-angle.