当前位置: 首页 > 文章 > 双丝杠与直线导轨结合部静刚度分析 农业机械学报 2012,43 (6) 202-206
Position: Home > Articles > Static Stiffness Analysis of Joint of Double Screw and Linear Guides Transactions of the Chinese Society for Agricultural Machinery 2012,43 (6) 202-206

双丝杠与直线导轨结合部静刚度分析

作  者:
尹宜勇;祝莉平;贾志新;赵彤
单  位:
北京科技大学机械工程学院;南通科技投资集团股份有限公司通科研究院;清华大学精密仪器与机械学系
关键词:
机床;滚珠丝杠;直线导轨结合部;静刚度
摘  要:
基于弹性力学赫兹接触理论,对主轴箱在z轴不同位置时双滚珠丝杠副轴向刚度、角接触球轴承轴向刚度和直线导轨副线刚度进行分析,建立了静刚度模型。基于此模型,结合有限元仿真,得出永磁直线同步电动机法向力对机床刀具点的变形。仿真结果与实验结果对比表明,两者吻合很好,验证了静刚度模型的有效性。
译  名:
Static Stiffness Analysis of Joint of Double Screw and Linear Guides
作  者:
Yin Yiyong1 Zhu Liping2 Jia Zhixin1 Zhao Tong3(1.School of Mechanical Engineering,University of Science and Technology Beijing,Beijing 100083,China 2.Institute of Tontec,Tontec Technology Investment Group Co.,Ltd.,Nantong 226400,China 3.Department of Precision Instruments and Mechanology,Tsinghua University,Beijing 100084,China)
关键词:
Machine tool,Ball screw,Joint of linear guides,Static stiffness
摘  要:
Based on the Hertz contact theory of elastic mechanics,a static stiffness model of double ball screw's joint was built by analyzing the linear stiffness of double linear guide rails and the axial stiffness of double ball screw and ball bearing.The permanent magnet linear synchronous motor's normal force affected the deformation of the feeding system.Based on the static stiffness model,deformation of the tool point was analyzed by finite element method and compared with the experimental results.The simulation results were in good agreement with measured data and indicated the accuracy of the static stiffness model.

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