A concentricity processing apparatus and method employ a vision system to achieve precision-machining of products, even those having minute, tapered or complex-shaped inner diameters. The concentricity processing apparatus includes: a loading unit for loading the product or subject to be processed; a photographing unit for photographing the section of the subject to be processed as loaded into the loading unit; a display unit for displaying a section of the subject to be processed as photographed by the photographing unit; a controller for obtaining a concentricity value using at least two inside diameter values calculated by the display unit and at least two rotation angle values of the servo motor, and for calculating a machined amount in units of rotation angle with reference to the concentricity and the rotation angle corresponding thereto; a servo motor on which the loading unit is installed for rotating the loading unit by a rotation angle .theta. input from the controller; a processing tool for machining a subject to be processed as rotated by the servo motor; and an X-Y stage on which the processing tool is loaded for moving the processing tool in a horizontal direction according to the machined amount D calculated by the controller. According to the present invention, it is possible to overcome the requirements for precision processing of the product and to remove marginal numerical value requirements when a tail stock and a circular bar are used by directly fixing the outer diameter to a chuck without using the tail stock and the circular bar in fixing the product.
CLAIM OF PRIORITY
This application makes reference to, incorporates the same herein, and claims all benefits accruing under 35 U.S.C. .sctn.119 from an application for CONCENTRICITY PROCESSING APPARATUS USING VISION SYSTEM AND METHOD THEREFOR earlier filed in the Korean Industrial Property Office on the Dec. 31, 1997 and there duly assigned Ser. No. 82128/1997.
