无心车床空心主轴系统振动特性分析及结构优化
发布时间:2018-04-25 01:33
本文选题:无心车床 + 空心主轴单元 ; 参考:《机械科学与技术》2017年09期
【摘要】:利用Pro/E建立了空心主轴单元的三维模型,采用ANSYS对空心主轴单元进行了振动特性分析。通过在空心主轴上选取的6个关键节点,并取前轴承不同位置,对比分析不同前轴承位置时的固有频率及相应6节点处的振动特性,得到如下结论:刀具和调刀套节点处的振动对棒材加工精度影响最大,并在此基础上对空心主轴结构进行优化,提高了加工精度。
[Abstract]:The three-dimensional model of hollow spindle unit is established by Pro/E, and the vibration characteristic of hollow spindle unit is analyzed by ANSYS. By selecting six key nodes on the hollow spindle and taking the different positions of the front bearing, the natural frequencies and the vibration characteristics of the corresponding 6 nodes are compared and analyzed. The conclusions are as follows: the vibration at the joint of cutter and cutter sleeve has the greatest influence on the precision of bar machining. On this basis, the hollow spindle structure is optimized and the machining accuracy is improved.
【作者单位】: 西安建筑科技大学机电工程学院;西安永电电气有限责任公司;西部超导材料科技股份有限公司;
【基金】:国家自然科学基金青年项目(51105292)资助
【分类号】:TG51
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本文编号:1799186
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