Patent ID: 7950981

Claim:
A precision machining apparatus comprising: a first rotating device that rotates a grinding target body and a first mount that supports the first rotating device; a second rotating device that rotates a wheel and a second mount that supports the second rotating device; a moving device that selectively moves the first mount and the second mount closer to one another or farther away from one another; a controller that controls the amount that the first and second mounts are moved by the moving device; and a measuring device that measures thickness and evenness of the grinding target body, and a posture control device that controls a posture of the first or second rotating devices, which is interposed between the first rotating device and the first mount or between the second rotating device and the second mount; wherein the moving device includes a first moving portion formed of a feed-screw mechanism and a second moving portion formed of an actuator that is based on pressure control, the moving device moving the first mount and the second mount relative to one another by selectively using the first moving portion and the second moving portion, and the controller is structured to adjust the amount that the first and second mounts are moved and/or the posture of the posture control device to obtain a predetermined thickness and evenness of the grinding target body based on measurement results obtained by the measuring device.