高频微进给镗削机构的设计优化

2018 IEEE 9th International Conference on Mechanical and Intelligent Manufacturing Technologies (ICMIMT) Pub Date : 2018-02-01 DOI:10.1109/ICMIMT.2018.8340415

Long Qiang, Zhang Ge, Zhai Peng, L. Miao, Q. Lei, Wang Feng

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引用次数: 0

摘要

轴向截面为圆柱形，截面为椭圆的非圆柱形销孔结构复杂，一般数控镗床难以加工。本文设计了一种新型高频微进给镗削机构。该机构的基本思想是刚度的不对称，在相同的应力条件下，刚度的不对称会使两侧的位移不同。它将导致刀杆振荡，实现径向位移。在SolidWorks中完成结构设计，并基于ANSYS Workbench对结构的静刚度、动刚度、疲劳强度和谐波响应进行分析，对设计进行评估并进行优化改进。最后对优化结果进行了加工实验，结果表明优化后的机构可以加工非圆柱销孔。

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Design optimization of high frequency microfeed boring mechanism

Non-cylinder pin hole whose axial section is trumpt and cross section is ellipse, which is very complicated, is difficult to machine with a general NC boring machine. In this paper a new type of high frequency microfeed boring mechanism is designed. Basic idea of this mechanism is asymmetry of stiffness, which will make displacement different of both sides under same stress conditions. It will lead tool rod to oscillate and realize radial displacement. Structure design is completed in SolidWorks and static stiffness, dynamic stiffness, fatigue strength and harmonic response are analyzed based on ANSYS Workbench to assess the design and make optimization improvement. Finally, a processing experiment is done with optimized result, the result shows that optimized mechanism can process non-cylinder pin hole.

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来源期刊

2018 IEEE 9th International Conference on Mechanical and Intelligent Manufacturing Technologies (ICMIMT)

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