基于EtherCAT的嵌入式多核电火花小孔机床数控系统研究  

Research on an Embedded Multi-core CNC System for Small Hole EDM Based on EtherCAT

作　　者：樊帅 蒋毅 江晨松 王昌喜 陆晓华[2] FAN Shuai;JIANG Yi;JIANG Chensong;WANG Changxi;LU Xiaohua(Key Laboratory of Advanced Manufacturing Equipment Technology of Jiangsu Province,School of Mechanical Engineering,Jiangnan University,Wuxi 214122,China;Suzhou Electrical Discharge Machining Research Institute Co.,Ltd.,Suzhou 215011,China)

机构地区：[1]江南大学机械工程学院,江苏省食品先进制造装备技术重点实验室,江苏无锡214122 [2]苏州电加工机床研究所有限公司,江苏苏州215011

出　　处：《电加工与模具》2025年第2期26-31,共6页Electromachining & Mould

基　　金：国家自然科学基金项目(51675233)。

摘　　要：针对当前电火花小孔加工数控系统存在系统老旧、实时性差、集成度低等方面的缺点,设计了一种基于嵌入式多核ARM+FPGA+EtherCAT架构的新型数控系统。通过将上位机的功能合理划分为多个独立模块,并设计成不同的软件进程来运行,优化了CPU资源分配,从而提升了系统的可靠性和实时性。利用该系统进行电火花群孔加工、键槽铣削及簸箕槽铣削实验测试,结果表明,在小孔加工时的入口和出口的锥度误差小于2%,铣削加工精度有显著提升,表面质量也得到改善,显示了该系统在复杂曲线加工中的稳定性和可靠性。To address the limitations of the existing electrical discharge machining(EDM)small hole processing CNC system,such as aging hardware,poor real-time performance,and low integration.A design of a novel CNC system based on an embedded multi-core ARM+FPGA+EtherCAT architecture was presented.The system optimizes CPU resource allocation and enhances system reliability and real-time performance by decomposing the host computer’s functions into independent modules,each implemented as separate software processes.Experimental tests on electrical discharge machining of small holes,keyway milling,and pocket milling show that the CNC system exhibits minimal taper errors during small-hole processing,significantly improved machining accuracy during milling,and enhanced surface quality.These results demonstrate the system’s stability and reliability in complex curve machining.

关 键 词：多核 电火花加工 工业以太网 数控系统 

分 类 号：TG661[金属学及工艺—金属切削加工及机床]