机床滑动导轨副加速磨损退化试验建模与分析

发布时间：2018-01-18 01:19

本文关键词：机床滑动导轨副加速磨损退化试验建模与分析　出处：《北京工业大学学报》2015年04期 　论文类型：期刊论文

【摘要】：为了分析机床滑动导轨副加速退化试验中的磨损机理,建立了滑动导轨副在实际工况下的受力变形模型并计算得到导轨接触面间的接触力.设计了加速磨损退化试验,并基于Archard模型建立了机床滑动导轨副实际工况下磨损计算模型,主要建立了床身导轨接触面磨损模型.基于理论模型,采用加大滑动导轨负载力水平的方法,对加速磨损退化试验中的滑动导轨床身导轨接触面的磨损量和磨损曲线进行预测.结果表明:该模型可较好地指导实际的加速磨损退化试验参数设计和根据高负载下试验获得的床身导轨磨损量预测工作负载下的磨损.
[Abstract]:In order to analyze the wear mechanism of the sliding guideway pair in the accelerated degradation test of machine tool. The stress deformation model of sliding guideway pair under actual working condition is established and the contact force between the contact surfaces of the guide rail is calculated. The accelerated wear degradation test is designed. Based on the Archard model, the wear calculation model of the sliding guideway pair is established, and the wear model of the contact surface of the bed guideway is established based on the theoretical model. The method of increasing the load level of sliding guide rail is adopted. The wear quantity and wear curve of sliding guideway bedside contact surface in accelerated wear degradation test are predicted. The results show that:. The model can guide the parameter design of accelerated wear degradation test and predict the wear of bed guideway under high load.
【作者单位】：北京工业大学先进制造技术北京市重点实验室;
【基金】：国家科技重大专项资助项目(2012ZX04010021-001-004) 北京市自然科学基金资助项目(KZ20140005010);北京市自然科学基金资助项目(3122005)
【分类号】：TG502.3
【正文快照】： 导轨导向精度和接触刚度随导轨接触面磨损逐渐退化,导致机床运动精度和抗振性能降低,并进而影响被加工零件的加工精度和加工质量.为了检测滑动导轨的精度寿命,一般都需经过长时间的滑动导轨副在有效负载情况下连续运行试验才能获得.因为滑动导轨副的磨损和精度退化是个缓慢的

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