Precision measurement of carriage slide motion error of a drum roll lathe
Precision measurement of carriage slide motion error of a drum roll lathe
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DOI：
10.1016/j.precisioneng.2011.10.005
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发表时间：
2012-04
影响因子：
3.6
通讯作者：
Jung Chul Lee;W. Gao;Y. Shimizu;J. Hwang;J. Oh;Chun-Hong Park
中科院分区：
文献类型：
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作者：
Jung Chul Lee;W. Gao;Y. Shimizu;J. Hwang;J. Oh;Chun-Hong Park
介绍了滚筒车床小车滑块运动误差的测量方法。利用放置在轧件两侧的两个电容探头测量滑块运动误差，该误差由滑块运动轴线与主轴旋转轴线之间的偏离直线度误差分量和轴线不对中误差分量组成。电容式探头首先由托架滑块移动，以在工作件绕主轴旋转轴旋转180°之前和之后，从托架滑块行程范围的开始位置到结束位置扫描固定辊工作件。基于反转法将偏直度的影响从误差分量中分离出来，可以准确地评估滑块的偏直度运动误差分量。然后，将两个电容式探头分别保持在托架滑动行程范围的开始位置和结束位置处不动，以在多次旋转中扫描旋转的轧辊工件。可以通过对电容式探头的探头输出在一转或多转上的平均运算来评估轴不对中误差分量，这消除了工件不圆度形成误差分量以及主轴运动误差的影响。试验是在滚筒车床上进行的，滑块行程为1700 mm。
This paper presents the measurement of carriage slide motion error of a drum roll lathe. The slide motion error, which is composed of the out-of-straightness error component and the axis misalignment error component between the axis of motion of the carriage slide and the axis of rotation of the spindle, is measured by using two capacitive probes placed on the two sides of a roll workpiece. The capacitive probes are first moved by the carriage slide to scan the stationary roll workpiece from the starting position to the end position of the carriage slide travel range before and after a 180° rotation of the workpiece about the axis of rotation of the spindle. The out-of-straightness motion error component of the carriage slide can be accurately evaluated by separating the influence of the workpiece out-of-straightness form error component based on the reversal method. The two capacitive probes are then kept stationary at the start position and the end position of the carriage slide travel range, respectively, to scan the rotating roll workpiece over multiple rotations. The axis misalignment error component can be evaluated from an averaging operation of the probe outputs of the capacitive probes over one rotation or multiple rotations, which removes the influence of the workpiece out-of-roundness form error component as well as the spindle motion error. Experiments were carried out on a drum roll lathe over a carriage slide travel range of 1700mm.