盘式刀库及机械手可靠性增长试验方法研究  

Study on Reliability Growth Test Method for Disc Tool Magazine

作　　者：葛甜[1] 李春梅[1] 冯虎田[1] 董维新 刘亚峰 

机构地区：[1]南京理工大学机械工程学院,南京210094 [2]陕西秦川机床工具集团有限公司秦川发展研究院,陕西宝鸡721009

出　　处：《组合机床与自动化加工技术》2012年第11期12-14,共3页Modular Machine Tool & Automatic Manufacturing Technique

基　　金：国家科技重大专项(2010ZX04014-013)

摘　　要：车铣复合加工中心用盘式刀库及机械手是大型复杂的机电产品。针对该盘式刀库及机械手的结构特点,进行了可靠性增长的研究。搭建了便于可靠性分析和性能检测的可靠性试验台,分析了其可靠性试验系统的组成,随后总结了盘式刀库的早期故障模式及影响,找出其薄弱环节。且针对这些故障制定了一套基于Duane模型的可靠性增长试验方案,绘制了可靠性增长计划曲线,并提出了后期试验跟踪及控制的方法和要点。该可靠性增长试验方法对同类刀库机械手的可靠性研究具有重要意义。A study on reliability growth was put forward for disc tool magazine of turningmilling machi ning centre, which is classified as a largescale complex product. A testtable which could be used to ana lyze reliability as well as to test performance parameters was designed and manufactured. Based on initial failure of disc tool magazine, a reliability growth test program which adopted Duane model was established and the planning curve was drawn. The key points of tracking and controlling in the later test were also given. This method can be applied in wider field for the reliability analysis of relevant tool magazines.

关 键 词：盘式刀库 试验台 早期故障 杜安模型 可靠性增长试验 

分 类 号：TH121[机械工程—机械设计及理论] TB114.3[理学—概率论与数理统计]