Optimal design of the dynamic performance of the ultra-precision fly cutting machine tool

被引:9
作者
Ding, Yuanyuan [1 ]
Rui, Xiaoting [1 ]
Chang, Yu [2 ]
Lu, Hanjing [1 ]
Chen, Yiheng [1 ]
Ding, Jianguo [2 ]
Shehzad, Adeel [1 ]
Chen, Gangli [1 ]
Gu, Junjie [1 ]
机构
[1] Nanjing Univ Sci & Technol, Inst Launch Dynam, Nanjing 210094, Peoples R China
[2] Nanjing Univ Sci & Technol, Sch Sci, Nanjing 210094, Peoples R China
基金
中国国家自然科学基金;
关键词
Dynamic performance; Structural optimization; Ultra-precision fly cutting machine tool; SURFACE GENERATION; VIBRATION;
D O I
10.1007/s00170-022-10502-x
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
The relative vibration displacement between the tool tip and workpiece will inevitably affect the machined surface topography during the machining process of the ultra-precision fly cutting machine tool. The dynamic performance of the rotational component consisting of the spindle, the fly cutting head, and tool holders needs to be comprehensively investigated because of its significant influences on the waviness generation on the workpiece surface. In this paper, the finite element method is adopted to establish the dynamics model of the rotational component, and then the dynamics analysis proves that the deformation of the fly cutting head and tool holders significantly affects the tool tip displacement, which is validated by a modal test and a machining test. Subsequently, three optimization schemes of the fly cutting head and three optimization schemes of the tool holder are proposed and analyzed. According to the analysis and comparison results of the dynamics response, the optimization scheme of the fly cutting head 2 and the tool holder 3 is selected as the final optimization scheme, which effectively decreases the tool tip displacement by 16.97%. The simulation results of the optimization scheme are validated by the modal test.
引用
收藏
页码:567 / 585
页数:19
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