Abstract
Error compensation is a key to reach the geometric accuracies required for high precision machine tools. To prevent errors from affecting the machining process, compensation values for the feed axes can be used. However, conventional feed axes can only compensate deviations in their feed directions. By controlling its integrated hydraulic guiding system, the feed axis presented in this paper is capable of compensating errors in all other degrees of freedom as well. Using a specifically developed program, ideal parameters for the compensation of errors in a realistic 3D-axis-system were calculated. The axis’ characteristics were examined on a test rig for different types of controllers and compared to those parameters. It could be shown that the presented highly integrated hydraulic feed axis is capable of compensating typical errors resulting from such a 3D-setup.
Publisher
Trans Tech Publications, Ltd.
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