MATEC Web Conf.
Volume 319, 20202020 8th Asia Conference on Mechanical and Materials Engineering (ACMME 2020)
|Number of page(s)||7|
|Section||Mechanical Design and Optimization|
|Published online||10 September 2020|
Design of Compound Machine Tool for Ultra-Precision Shaft Parts
College of Intelligent Science and Technology, National University of Defense Technology, Changsha 410073, China
2 Hunan Key Laboratory of Ultra-Precision Machining Technology, Changsha 410073, China
3 Laboratory of Science and Technology on Integrated Logistics Support, National University of Defense Technology, Changsha 410073, China
* Corresponding author: email@example.com
Ultra-precision shaft components are widely used, such as the shaft core of air-floating spindle, etc. At present, the final precision of such workpieces are difficult to reach through CNC machining tools, but often with the help of manual grinding, of which the machining precision and efficiency are greatly limited. Based on the deterministic figuring method, this paper uses an abrasive belt polishing machine to carry out ultra-precision figuring experiments on shaft parts. On this basis, an ultra-precision composite machine tool for shaft parts is designed with the functions of turning, grinding and abrasive belt polishing. The dynamic performance requirements of the machine tool are put forward by analyzing the precision index of the workpiece and the error control principle of deterministic figuring, and the structure of machine tool is designed and the performance parameters of each part are selected. combined with the finite element analysis, the key components are optimized to meet the machining requirements of 0.1μm roundness and 1μm cylindricity on the steel shaft.
© The Authors, published by EDP Sciences, 2020
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