Patent ID: 6093088
Filing Date: 2000-07-25
Classification: B24B

Abstract:
A surface polishing machine, comprising:a polishing tool having an annular polishing tool face and adapted to be rotatively driven for polishing a workpiece placed on said polishing tool face, said workpiece having a predetermined circumcircle diameter, wherein an outer diameter of said polishing tool is larger than said circumcircle diameter of said workpiece and smaller than twice the circumcircle diameter of the workpiece;a disciform pressurizing member, placed on and movable in unison with the workpiece placed on said annular polishing tool face, for uniformly placing pressure on the workpiece such that said workpiece is pressed against the annular polishing tool face of said polishing tool; anda polishing-position retaining mechanism for holding the workpiece and said disciform pressurizing member at a predetermined polishing position on the annular polishing tool face, while permitting said workpiece and said disciform pressurizing member to rotate about a center of rotation in said polishing-position.