Development and Testing of a Precision Built-in Hydrostatic Spindle System

• Main Authors: Bing-Tsung Tsai, 蔡秉璁
• Other Authors: Ming-Fei Chen
• Format: Others
• Language: zh-TW
• Published: 2009
• Online Access: http://ndltd.ncl.edu.tw/handle/89034569973873142615

碩士 === 國立彰化師範大學 === 機電工程學系 === 97 === The purpose of this thesis is to develop and test a precision built in hydrostatic spindle system for the machine tool. Firstly, according to the basic requirements the related sizes of the spindle were decided. And then, by using of the finite difference method the hydrostatic bearing performance will be analyzed. Secondly, the spindle mathematic model was established. The Campbell diagram, mode shapes and critical speed of the spindle was obtained by the finite element method. Finally, based on the experimentally extracted modal parameters, the FEM model could be verified. The presented spindle was measured by the noncontact displacement sensors ensuring run out accuracy of 3um and rotation accuracy less than 1um.