六沟槽滚珠直线导轨副的接触刚度建模方法研究  

Research on Contact Stiffness Modeling Method of Six-Groove Ball Linear Guide Pair

作　　者：翟光钰 冯虎田[1] ZHAI Guangyu;FENG Hutian(School of Mechanical Engineering,Nanjing University of Science and Technology,Nanjing 210094,China)

机构地区：[1]南京理工大学机械工程学院,南京210094

出　　处：《组合机床与自动化加工技术》2025年第2期22-27,34,共7页Modular Machine Tool & Automatic Manufacturing Technique

基　　金：国家自然科学基金项目(51905274);中央高校基本科研业务专项项目(30923011011)。

摘　　要：精密零件的加工制造依赖于高刚度的支撑运行部件,以不同于传统结构的六沟槽滚珠直线导轨副为对象,并在考虑滑块裙部扩张变形的基础上,构建了垂直接触刚度模型。首先对新提出模型进行了弹性接触模型的建模,以接触变形和接触载荷之间的关系作为理论基础,考虑受载时滑块扩张微小变形、受载方向位移满足的变形、导轨副的受力平衡,建立的理论模型对未知参数进行求解。进行了垂直接触刚度和滑块裙部扩张变形的试验,并结合切片模型的有限元仿真,将试验结果与理论模型进行对比验证。The manufacturing of precision parts depends on the high stiffness of the supporting parts.In this paper,the vertical contact stiffness model is established based on the six-groove ball linear guide pair,which is different from the traditional structure,and considering the expansion deformation of the slide skirt.Based on the relationship between contact deformation and contact load,the theoretical model is established to solve the unknown parameters,taking into account the small expansion deformation of the slider under load,the deformation satisfied by the load direction displacement,and the force balance of the guide pair.The vertical contact stiffness and slip skirt expansion deformation tests are carried out,and the finite element simulation of slice model is combined to compare the test results with the theoretical model.

关 键 词：刚度建模 扩张变形 静力学接触特性 等效滚珠数 

分 类 号：TH16[机械工程—机械制造及自动化] TG66[金属学及工艺—金属切削加工及机床]