Effects of Ball Screw Empty Rotating on Grinding Error Compensation Performance

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Abstract:

Size accuracy of cylindrical grinding can be improved considerably by using error compensation. However, empty rotating of ball screw resulting from its inverse gap is the most important factor influencing the error compensation performance. In this paper, three grinding experiments were carried out to probe the effects of pretightening force magnitude on diameter accuracy. The experimental results show that too high pretightening force may lead to an excessive frictional resistance and thus reduce the grinding accuracy. For any specific grinding error compensation system, there exists an optimum pretightening force value capable of reaching the minimum grinding error.

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1040-1044

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February 2012

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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