Abstract
This paper describes a new grinding system that incorporates a measurement unit to enable autonomous high-precision grinding control. The valve seat diameter, which is the dimension of intersection of two cones with a small angular difference, is difficult to be produced at high accuracy with any of conventional technologies. We developed the new grinding system contains the grinding unit that can process two different cones without unloading the workpiece, the seat diameter measurement unit utilizing an image processing system, and a different control algorithm for each fluctuation factor in grinding. All these features have realized the new grinding system that has three times as high precision as that of conventional systems.
