Tooth Surface Measurement of Involute Pinion-Type Cutter by CNC Gear-Measuring Machine.

The measurement of an involute pinion-type cutter by CNC gear-measuring machine is newly developed. In this method, a pinion-type cutter is regarded as a conical involute gear. The conical involute gear can be measured as a helical involute gear by introducing "equivalent helical gear" concept. Thus, the tooth surface of the involute pinion-type cutter can be measured as the tooth surface of the helical involute gear by CNC gear-measuring machine. Experiments demonstrate that this method gives accurate results and has practical utillity. Finally, tooth surface analysis of the pinion-type cutter is also presented.