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Proceedings Paper

Design and analysis of drum lathe for manufacturing large-scale optical microstructured surface and load characteristics of aerostatic spindle
Author(s): Dongxu Wu; Zheng Qiao; Bo Wang; Huiming Wang; Guo Li
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Paper Abstract

In this paper, a four-axis ultra-precision lathe for machining large-scale drum mould with microstructured surface is presented. Firstly, because of the large dimension and weight of drum workpiece, as well as high requirement of machining accuracy, the design guidelines and component parts of this drum lathe is introduced in detail, including control system, moving and driving components, position feedback system and so on. Additionally, the weight of drum workpiece would result in the structural deformation of this lathe, therefore, this paper analyses the effect of structural deformation on machining accuracy by means of ANSYS. The position change is approximately 16.9nm in the X-direction(sensitive direction) which could be negligible. Finally, in order to study the impact of bearing parameters on the load characteristics of aerostatic journal bearing, one of the famous computational fluid dynamics(CFD) software, FLUENT, is adopted, and a series of simulations are carried out. The result shows that the aerostatic spindle has superior performance of carrying capacity and stiffness, it is possible for this lathe to bear the weight of drum workpiece up to 1000kg since there are two aerostatic spindles in the headstock and tailstock.

Paper Details

Date Published: 21 August 2014
PDF: 6 pages
Proc. SPIE 9283, 7th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Design, Manufacturing, and Testing of Micro- and Nano-Optical Devices and Systems, 92830I (21 August 2014); doi: 10.1117/12.2070005
Show Author Affiliations
Dongxu Wu, Harbin Institute of Technology (China)
Zheng Qiao, Harbin Institute of Technology (China)
Bo Wang, Harbin Institute of Technology (China)
Huiming Wang, Harbin Institute of Technology (China)
Guo Li, Harbin Institute of Technology (China)


Published in SPIE Proceedings Vol. 9283:
7th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Design, Manufacturing, and Testing of Micro- and Nano-Optical Devices and Systems
Tianchun Ye; A. G. Poleshchuk; Song Hu, Editor(s)

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