A12 テーパコーン加工動作の軌跡誤差を用いた5軸制御工作機械の幾何誤差同定方法(OS-1 最新工作機械(3))

概要

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Cone frustum machining with simultaneous five-axis control, which is prescribed in NAS979, is one of the most general method for the accuracy test of five-axis controlled machine tool. And instead of the machining, the measurement with double ball bar device has been proposed. In our previous work, we showed that the geometric errors between feed axes in five-axis controlled machine tool influence the accuracy of machined cone frustum, and it depends on the location, apex angle, tilt angle or diameter of the cone frustum. It indicates that all geometric errors might be identified with the profiles of cone frustum. In this paper, we suggest a method to identify the geometric errors in five-axis controlled machine tool with tilting table using the multiple motion trajectories of cone frustum machining measured by double ball bar device.
2008-11-21