数控磨床可靠性模型优选与分析

doi:10.16731/j.cnki.1671-3133.2018.11.021

现代制造工程 ›› 2018, Vol. 458 ›› Issue (11): 119-125.doi: 10.16731/j.cnki.1671-3133.2018.11.021

• 设备设计/诊断维修/再制造 • 上一篇下一篇

数控磨床可靠性模型优选与分析

罗静^1,2, 陈一凡^1,2, 张根保³, 段述明¹

1 重庆理工大学机械工程学院,重庆 400054;
2 重庆理工大学汽车零部件先进制造技术教育部重点实验室,重庆 400054;
3 重庆大学机械工程学院,重庆 400044

收稿日期:2017-12-07 出版日期:2018-11-20 发布日期:2019-01-07
作者简介:罗静,教授,主要研究方向为先进制造技术及装备等。张根保,博士,教授,博士生导师,主要研究方向为先进制造技术、计算机集成制造系统、数控机床可靠性、现代质量工程和企业信息化等。E-mail:luojing@cqut.edu.cn; gen.bao.zhang@263.net
基金资助:
国家自然科学基金资助项目(51575070);国家“高档数控机床与基础制造装备”科技重大专项项目(2013ZX04005-012,2015ZX04003-003,2016ZX04004-005)

Optimum reliability model and analysis for CNC grinding machine

Luo Jing^1,2, Chen Yifan^1,2, Zhang Genbao³, Duan Shuming¹

1 College of Mechanical Engineering,Chongqing University of Technology,Chongqing 400054,China;
2 Ministry of Education Key Laboratory of Advanced Manufacturing Technology for Automobile Parts, Chongqing University of Technology,Chongqing 400054,China;
3 College of Mechanical Engineering,Chongqing University,Chongqing 400044,China

Received:2017-12-07 Online:2018-11-20 Published:2019-01-07

摘要/Abstract

摘要： 可靠性评估是可靠性工作的首要任务,为了避免在可靠性建模过程中的主观性,并取代繁琐的计算过程,首先采用四分位距法对故障数据进行离群值判定,进而使用MINITAB软件实现对有效故障数据的可靠性模型优选,最后通过线性相关性和K-S检验来验证该方法的准确性;同时,为了提高数控磨床可靠性水平,采用失效模式与影响分析、故障树分析方法对机床进行可靠性分析,并对关键故障因素提出有效的可靠性改善措施;以上方法在项目中均得到有效应用,对提升该机床可靠性水平及今后的可靠性设计改进有着重要作用。

关键词: 数控磨床, 可靠性建模, 四分位距, MINITAB软件, 可靠性分析

Abstract: Reliability evaluation is the primary task of reliability work,in order to avoid the subjectivity in the process of reliability modeling and replace the cumbersome calculation process,firstly,the Inter-Quartile Range(IQR) method is used to determine the outliers of the fault data,and then the MINITAB software is used to optimize the reliability model of the effective data,finally,the linear correlation and K-S test are put forward to verify the accuracy of the method.Meanwhile,in order to improve the reliability level of CNC grinder,the Failure Mode and Effects Analysis(FMEA) and Fault Tree Analysis(FTA) methods are used to analyze the reliability of the machine tools,and effective reliability improvement measures for key failure factors are put forward.The above methods are effectively applied in the project,which play important roles in improving the reliability level of the machine tool and improving the reliability design in the future.

Key words: CNC grinding machine, reliability modeling, Inter-Quartile Range(IQR), MINITAB software, reliability analysis

中图分类号:

TG586

罗静, 陈一凡, 张根保, 段述明. 数控磨床可靠性模型优选与分析[J]. 现代制造工程, 2018, 458(11): 119-125.

Luo Jing, Chen Yifan, Zhang Genbao, Duan Shuming. Optimum reliability model and analysis for CNC grinding machine[J]. Modern Manufacturing Engineering, 2018, 458(11): 119-125.

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数控磨床可靠性模型优选与分析

Optimum reliability model and analysis for CNC grinding machine

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