Patent ID: 6780091
Filing Date: 2004-08-24
Classification: B24B

Abstract:
A machining strain removal apparatus for removing machining strain present on a treated surface of a workpiece by polishing the treated surface, comprising:chuck means for holding the workpiece while exposing the treated surface; workpiece admission/delivery means for admitting the workpiece, in which the machining strain should be removed from the treated surface, onto the chuck means and delivering the workpiece, in which the machining strain has been removed from the treated surface, from a position on the chuck means; and polishing means for polishing the treated surface of the workpiece held on the chuck means, wherein the chuck means is selectively positioned in a workpiece admission/delivery area and a polishing area, and when the chuck means is located in the workpiece admission/delivery area, the workpiece having the machining strain to be removed from the treated surface is admitted onto the chuck means, then the chuck means is moved to the polishing area, and the treated surface of the workpiece held on the chuck means is polished by the polishing means to have the machining strain removed from the treated surface, whereafter the chuck means is returned to the workpiece admission/delivery area, and the workpiece is delivered from the position on the chuck means, wherein the polishing means includes a rotating shaft and a polishing tool mounted on the rotating shaft, and the polishing tool being rotated is pressed against the treated surface of the workpiece, whereby the treated surface is polished, and wherein when the treated surface of the workpiece is polished by the polishing means, the chuck means is rotated about a central axis of rotation extending parallel to the rotating shaft of the polishing means, and is also reciprocated in directions substantially perpendicular to the rotating shaft of the polishing means.