Studies on the Contouring of Curved Surfaces utilizing Sensor Feedback Control.

This paper describes the manufacture of a prototype polishing apparatus for curved surfaces utilizing sensor feedback control with a noncontact-type laser sensor, and construction of the circumference system. With respect to the work shape measurement with a noncontact sensor, it was clearly shown that the contouring error was affected by sensing error, and it was possible to decrease the contouring error by correcting the sensing error. Concerning the tool attitude control in which the tool spindle usually rotates in the normal direction to the work surface during polishing, a new mechanism was designed. After the cutting experiment, improvement of machined surface and effectiveness of the new control mechanism were confirmed.