21 August 2014 The dynamic analysis of drum roll lathe for machining of rollers
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Abstract
An ultra-precision machine tool for machining of the roller has been designed and assembled, and due to the obvious impact which dynamic characteristic of machine tool has on the quality of microstructures on the roller surface, the dynamic characteristic of the existing machine tool is analyzed in this paper, so is the influence of circumstance that a large scale and slender roller is fixed in the machine on dynamic characteristic of the machine tool. At first, finite element model of the machine tool is built and simplified, and based on that, the paper carries on with the finite element mode analysis and gets the natural frequency and shaking type of four steps of the machine tool. According to the above model analysis results, the weak stiffness systems of machine tool can be further improved and the reasonable bandwidth of control system of the machine tool can be designed. In the end, considering the shock which is caused by Z axis as a result of fast positioning frequently to feeding system and cutting tool, transient analysis is conducted by means of ANSYS analysis in this paper. Based on the results of transient analysis, the vibration regularity of key components of machine tool and its impact on cutting process are explored respectively.
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Zheng Qiao, Zheng Qiao, Dongxu Wu, Dongxu Wu, Bo Wang, Bo Wang, Guo Li, Guo Li, Huiming Wang, Huiming Wang, Fei Ding, Fei Ding, } "The dynamic analysis of drum roll lathe for machining of rollers", 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, 92830J (21 August 2014); doi: 10.1117/12.2069966; https://doi.org/10.1117/12.2069966
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