基于EtherCAT通信的双CPU总线型柔性折弯加工中心专用数控系统研发  

Research on dedicated CNC system for flexible bending machining center based on EtherCAT communication and dual-CPU bus type

作　　者：吴凤和[1,2] 王帅淇 孙迎兵 张会龙 王宇 连辉 柴海宁 WU Fenghe;WANG Shuaiqi;SUN Yingbing;ZHANG Huilong;WANG Yu;LIAN Hui;CHAI Haining(Mechanical College,Yanshan University,Qinhuangdao 066004,CHN;Heavy Intelligent Manufacturing Equipment Technology Innovation Center of Hebei Province,Qinhuangdao 066004,CHN;Genertec Qiqihar No.2 Machine Tool Co.,Ltd.,Qinhuangdao 066004,CHN)

机构地区：[1]燕山大学机械工程学院,河北秦皇岛066004 [2]河北省重型智能制造装备技术创新中心,河北秦皇岛066004 [3]通用技术齐齐哈尔二机床有限责任公司,河北秦皇岛066004

出　　处：《制造技术与机床》2023年第1期67-73,共7页Manufacturing Technology & Machine Tool

基　　金：河北省高等学校科学技术研究重点项目(ZD2020156)。

摘　　要：面向柔性折弯加工中心控制的低成本、便捷性、功能集成与定制化需求,提出并开发了一款基于EtherCAT通信的双CPU总线型柔性折弯加工中心专用数控系统。首先,通过分析十轴柔性折弯加工中心成型原理,基于EtherCAT通信协议,提出了一种“PC+运动控制卡”的双CPU总线型控制模式,确定了数控系统的硬件架构;然后,采用C#编程语言,完成了专用数控系统软件开发,重点解决了板材精确定位、考虑回弹的折弯控制、人机交互界面优化等关键问题;最后,开展了加工测试和实验验证。结果表明,开发的专用数控系统加工角度误差范围小于±4 5′,直线度间隙误差小于0.3 mm,符合钣金行业GB/T 33644-2017标准,且人机交互性友好、功能集成度高、运行稳定,能够很好地满足实际生产需要。Allowing for the low cost, convenience, functional integration and customization, this paper designs and develops a dedicated CNC system for flexible bending machining center based on EtherACT communication and dual-CPU bus type. Firstly, by analyzing the forming principle of the 10 axis flexible bending machining center, a control mode of "PC + motion controller" based on the Ether CAT communication and dual CPU bus type is proposed, and the hardware of the CNC system is determined;Then, based on C# programming language, the software of the dedicated CNC system is completed, and the key problems such as positioning accuracy of sheet metal, bending control with springback and human-computer interface optimization are mainly solved;Finally, the machining test and experimental verification are carried out. The results show that the machining angle error range of the special CNC system developed in this paper is less than, and straightness gap error is less than 0.3 mm, which meets GB/T 33644-2017 standard of sheet metal industry. Moreover, the human-computer interaction is friendly, the function integration is high, and the operation is stable, which can well meet the actual production needs.

关 键 词：钣金加工 柔性折弯 数控系统 运动控制卡 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]