Slide error measurement of a large-scale ultra-precision lathe

Jung Chul Lee; Wei Gao; Young Jin Noh; Joo Ho Hwang; Jeoung Seok Oh; Chun Hong Park

doi:10.1117/12.885661

28 December 2010 Slide error measurement of a large-scale ultra-precision lathe

Jung Chul Lee, Wei Gao, Young Jin Noh, Joo Ho Hwang, Jeoung Seok Oh, Chun Hong Park

Proceedings Volume 7544, Sixth International Symposium on Precision Engineering Measurements and Instrumentation; 75440P (2010) https://doi.org/10.1117/12.885661
Event: Sixth International Symposium on Precision Engineering Measurements and Instrumentation, 2010, Hangzhou, China

Abstract

This paper presents the measurement of the slide error of a large-scale ultra-precision lathe with an effective fabricating length of 2000 mm. A cylinder workpiece with a diameter of 320 mm and a length of 1500 mm was mounted on the spindle of the lathe with its rotational axis along the Z-direction. Two capacitive displacement probes with a measurement range of 100 μm were mounted on the slide of lathe with its moving axis along the Z-direction. The displacement probes were placed on the two sides of the cylinder workpiece over the horizontal plane (XZ-plane). The cylinder workpiece, which was rotated by the spindle, was scanned by the displacement probes moved by the slide. The X-directional horizontal slide error can be accurately evaluated from the probe outputs by using a proposed rotatingreversal method through separating the influences of the form error of the cylinder workpiece and the rotational error of the spindle. In addition to the out-of-straightness error component, the parallelism error component with respect to the spindle axis, can also be evaluated. The out-of-straightness error component and the parallelism error component of the slide error were measured to be 3.3 μm and 1.68 arc-seconds over a slide travel range of 1450.08 mm, respectively.

Citation Download Citation

Jung Chul Lee, Wei Gao, Young Jin Noh, Joo Ho Hwang, Jeoung Seok Oh, and Chun Hong Park "Slide error measurement of a large-scale ultra-precision lathe", Proc. SPIE 7544, Sixth International Symposium on Precision Engineering Measurements and Instrumentation, 75440P (28 December 2010); https://doi.org/10.1117/12.885661

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