NC平面研削盤の運動精度に関する研究

静的精度と円運動精度

抄録

The authors previously developed the CBP method to precisely measure the circular motion errors of a high precision CNC grinding machine, and investigated the effects of the move-ment conditions and NC parameters on the error trajectory. In the present study, the static accuracy tests are performed to assess the characteristics in motion of the test machine. The obtained data, such as straight motion errors and squareness errors, change with the measured position where a. measurement device is fixed. Then, a new method for transforming the data obtained at the measured position to that at the end of the wheel spindle is proposed. The error trajectory under the circular motion is computed by using the obtained data and the proposed transforming method. The estimated results are similar to the measured error trajectories. This implies that the proposed method is properly used for the transformation of the error vector and the prediction of the motion errors.