期刊
出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.precisioneng.2012.08.001
关键词
Ultra-high-speed spindles; Hybrid ceramic bearing spindles; Spindle metrology; Micro-manufacturing; Runout; Micromachining
类别
资金
- National Science Foundation [CMMI-0728157]
This paper presents a laser Doppler vibrometry-based methodology for measurement of axial and radial error motions when using miniature ultra-high-speed (UHS) spindles used for micromachining applications. The new methodology measures three-dimensional displacements from the surface of a custom-fabricated sphere-on-stem precision artifact using three mutually orthogonal laser beams. A precision alignment technique is developed to configure the three laser beams mutually orthogonal to one another. An infra-red sensor is used to provide a reference for the rotational angle of the spindle. The axial and radial motion data measured at operational speeds is then post-processed to obtain the synchronous and asynchronous components of the error motions in both directions. The presented approach enables obtaining error motions along both fixed-sensitive and rotating-sensitive directions. The methodology is then demonstrated by measuring axial and radial error motions when using a miniature ultra-high-speed spindle at four different speeds. Analysis of the measured data indicated the significant effect of spindle speed on the error motions along both fixed-sensitive and the rotating-sensitive directions. Finally, an uncertainty analysis is presented to quantify the overall combined uncertainty on the error measurements when using the new methodology. (c) 2012 Elsevier Inc. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据