Polishing tool for hydraulic cylinder production

The polishing tool for hydraulic cylinder production comprises a workbench, a rotating roller and two buffering mechanisms arranged side by side, the two buffering mechanisms are arranged on the two sides of the rotating roller in the axial direction respectively, each buffering mechanism comprises a fixed right-angle plate and a movable right-angle plate, the fixed right-angle plates are vertically and fixedly installed on the upper end face of the workbench, and the movable right-angle plates are vertically and fixedly installed on the lower end face of the workbench. The fixed right-angle plate is perpendicular to the central axis of the rotating roller, the movable right-angle plate is movably and vertically installed on the upper end face of the workbench, the movable right-angle plate is parallel to the fixed right-angle plate, the bevel edge of the movable right-angle plate and the bevel edge of the fixed right-angle plate are oppositely arranged, and a buffer groove used for containing a hydraulic cyl