
第5期 2017年5月
组合机床与自动化加工技术
Modular Machine Tool & Automatic Manufacturing Technique
文章编号:10012265(2017)05000905
DOI: 10. 13462/j. cenki. mmtamt. 2017. 05. 003
加载条件下滚珠丝杠副精度保持性试验研究
刘佳耀",尹曦',陶卫军',米继锋”
No.5 May2017
(1.南京理工大学机械工程学院,南京210094;2.陕西汉江机床有限公司液珠丝杠副研究室,陕西汉中723003)
摘要:针对国产精密滚珠丝杠副产品在精度保持性与耐磨性方面试验数据缺乏、性能研究不足的问题,提出了一种基于恒定加载的精密滚珠丝杠副精度保持性试验方法并进行了对比试验。与合作单位合作开发了配套的试验系统;给出了精密滚珠丝杠副各精度指标的求解方法、精度与摩擦力丧失
化的趋势,对比分析出它们的优劣势并推测原固,符合实际生产经验,验证了试验方法与试验装置的
有效性,为国产精密滚珠丝杠副精度保持性的提高提供了试验方法与有效试验数据,关键词:精密滚珠丝杠副;精度保持性;耐磨性;对比试验
中图分类号:TH161;TG65
文献标识码:A
Experimental Study of the Precision Retaining Ability of the
Precision Ball Screw Based on Loading Condition LIU Jia-yao', YIN Xi', TAO Wei-jun', MI Ji-feng
(1. School of Mechanical Engineering, Nanjing University of Science & Technology , Nanjing 210094 , China ; 2. Ball Screw Research Office, Hanjiang Machine Tool Co. , LTD, Hanzhong Shaanxi 723003, China)
Abstract : In view of the problem that the domestic precision ball screw lacks of experimental data and per-formance research about the precision retaining ability and abrasion resistance, a precision retaining ability experimental method for precision ball screw based on constant loading is presented and executed. Coopera-ting with the cooperation and designing a complete set of experimental system, the calculation principles of precision indexes, the loss judgements of accuracy and friction about the precision ball screw are introduced. Two models of precision ball screw participated in the experiment, the experiment results show the changing trend of their precision retaining ability and friction' s along the time, analyze their advantages and disadvan-tages by comparison, speculate the reasons, the results are consistent with the actual production experience, the validity of the experimental method and system is proved, the experimental method and theoretical basis
are provided for the improvement of the domestic precision ball screw' s precision retaining ability Key words: precision ball screw; precision retaining ability ; abrasion resistance; contrast experiment
0引言
精密滚珠丝杠副的优势在于传动性好、精度高、耐磨损和可承受重载等(-],在组合机床、航空装备、半导体元件、医疗器械及工业流水线等领域,精密滚珠丝杠副的应用率很高(4)。对于各类组合机床与加工中心而盲,精密滚珠丝杠副是一种基础性组件,其传动精度直接影响到设备总体性能与加工精度["],在选用精密滚珠丝杠副时,其精度和精度保持性指标非常重要
滚珠丝杠副精度保持性是指精密滚珠丝杠副保持其设备传动精度的特性可。现阶段,在精度保持性这一指标上,国产精密滚珠丝杠副和国外同类产品相比有一定差距[3%],国内滚珠丝杠副厂家缺乏有关试验手
段和方法,因而很少进行精度保持性试验,导致相关试验数据明显欠缺,甚至很难定量分析自身与国外产品在精度保持性上的差距及其原因,这也是国产精密滚珠丝杠副行业函待解决的核心技术问题之一[9]。针对上述问题,提出了一种基于恒定加载的精密滚珠丝杠副精度保持性试验方法,利用与合作单位共同开发的试验系统,对两种典型精密滚珠丝杠副进行试验,对比分析试验数据,验证了试验方法与试验装置的有效性,为国产精密滚珠丝杠副精度保持性的提高提供了试验方法与有效试验数据
基于恒定加载的滚珠丝杠副精度保持性试验方法
收稿日期:20160721
*基金项目:国家科技重大专项(2012ZX0400201102);国家自然科学基金资助项目(51275244)
作者简介:刘佳耀(1992一),男,山东威海人,制京理工大学士研究生,研究方向为滚动功能部件试验技术、智能机器人技术,(E-mail)
15062209211@163.com;通讯作者:陶卫军(1975一),男,南京人,南京理工大学副教投,博士,研究方向为智能机器人技术,精密仅器与测控工程,(E mail)taoreijun01@163.com
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