| 摘要 |
PURPOSE:To keep the tooth surface shape of a cutter in the target tooth surface shape by measuring the tooth surface after grinding with cutting edge grooves avoided, converting thereafter each measurement into the value of reference point to be stored previously, and by performing the grinding upon comparison of the measurement after conversion with the value of target tooth surface shape at the corresponding reference point. CONSTITUTION:When worn, a shaving cutter is ground to get the target tooth surface shape. As a number of cutting edge grooves A1,... of each tooth have different positions in the tooth width direction tooth by tooth at the time when the tooth surface after grinding is to be measured, measurement is performed at a plurality of points in the tooth width direction tooth by tooth while the tooth surface after grinding avoids the cutting edge grooves A1,.... Then each measurement is converted into the value at a plurality of reference points stored previously, and the tooth surface shape of each tooth is estimatedly measured as the value at each reference point. When thereafter the estimated measurement at each reference point is compared with the value of the target tooth surface shape at each reference point, therefore, it is known whether each tooth surface has been ground to target tooth surface shape, regardless of different positions of the cutting edge grooves A1,... tooth by tooth. |
