微喷孔七轴电火花加工机床数控系统研发  

Development of CNC system of 7-axis EDM machine tool for drilling micro nozzles

作　　者：佟浩[1] 李勇[1] 胡满红[1] 徐明刚[1] 贾维溥[1] 

机构地区：[1]清华大学制造工程研究所摩擦学国家重点实验室,北京100084

出　　处：《现代制造工程》2010年第8期1-7,共7页Modern Manufacturing Engineering

基　　金：国家863计划课题项目(2007AA04Z346);中国博士后科学基金资助项目(20080440278)

摘　　要：为满足国3(欧Ⅲ)标准的高端喷油嘴微喷孔加工需求,研发七轴微细电火花加工机床的开放式数控系统。探讨数控系统的软/硬件结构、功能模块划分、数控界面设计,以及整体联调等关键技术;重点研究批量加工多个微喷孔高一致性精度保证方法,以及加工过程协调智能控制策略;按照用户图样要求,进行批量化产品加工验证。研究结果表明:可实现具有变焦距的喷油嘴多个微喷孔的全自动化加工,加工精度、加工效率、可靠性和操作方便性均达到工业应用要求。In order to drill the micro nozzles of diesel engine with Europe Ⅲ emission standard,an open CNC system for 7-axis micro-EDM machine tools was developed.Discussed the key technologies including hardware and software structures,function module division,human-machine interface design,and system debugging process.The studied emphasis was laid on the control method to ensure high consistency in machining multi-nozzles.The particular attention was also given to an intelligent control strategy for the coordinated control of complex machining process.According to the technical requirements of Europe Ⅲ standard,the batch production of nozzle was carried out by using the developed CNC system.The studied results show that a fully automated process is achieved in machining the multi-focus nozzles with Europe Ⅲ standard.Moreover,the performances of machining accuracy and efficiency,reliability and easy operation can meet industrial application requirements.

关 键 词：微细电火花加工机床 喷油嘴微喷孔 数控系统 过程控制 PMAC控制器 

分 类 号：TH16[机械工程—机械制造及自动化]