摘要
数控机床的运行过程是一个人-机-环的复杂系统,实际运行过程中机床可靠性受众多因素影响。提出一种按致因因素分类的故障划分方法,采集来自于企业的实际故障数据进行统计分析,采用改进FMECA(Failure Mode,Effects and Criticality Analysis)方法,给出基于维修成本的危害度。通过计算不同故障对机床可靠性的影响大小,确定使用过程中对机床可靠性影响最大的因素,通过针对性的改进方法提升机床的运行可靠性。
The operation process of CNC machine tool is a complex system affected by personnel,machinery and environment,so the reliability of machine tool parts is affected by many factors in the process of operation. In this paper,a fault classification method based on cause factors is proposed,and the actual fault data from enterprises are collected for statistical analysis. The improved FMECA（ Failure Mode,Effects and Criticality Analysis） method is used to give the criticality based on the maintenance cost. By calculating the influence of different faults on the reliability of machine tools,the factors affecting the reliability of machine tools in the running process are determined,and the reliability of machine tools is improved through the targeted improvement method.
作者
邹安南
王红军
高杨杰
ZOU Annan;WANG Hongjun;GAO Yangjie(Mechanical Electrical Engineering School, Beijing Information Science ＆ Technology University, Beijing 100192, China;Key Laboratory of Modem Measurement ＆ Control Technology, Ministry of Education, Beijing Information Science ＆ Technology University, Beijing 100192, China)
出处
《北京信息科技大学学报（自然科学版）》
2018年第3期31-35,共5页
Journal of Beijing Information Science and Technology University
基金
"高档数控机床与基础制造装备"科技重大专项(2015ZX04001002)
关键词
可靠性提升
FMECA
故障分类
危害度
reliability enhancement
FMEAC
fault classification
criticality
