基于LabVIEW的管材液压成形设备测控系统设计

Design of tube hydroforming technology equipment's measurement and control system based on LabVIEW

以LabVIEW为开发平台,结合管材液压成形的技术特点,设计管材液压成形设备的测控系统。以工控机作为上位机,PLC作为下位机,通过OPC服务完成上下位机的通信,完成测控系统设计,实现了对液压成形设备的数据采集与控制、成形工艺曲线控制与显示和数据存储。实验表明,测控系统能完成预期的目标,采集到的数据与设定基本一致,成形过程稳定,得到壁厚均匀的零件。该方法具有良好的软件交互界面,工作可靠,可扩展性强等特点。

Based on LabVIEW,combined with tube hydroforming technology characteristics,a measurement and control system for tube hydraulic forming was developed.Using industrial personal computer as upper computer,PLC as lower computer,the upper-lower computer’s communication was completed by OPC Servers,which realized data acquisition from forming equipment,process control for tube hydraulic forming,and also integrated curve display and data storage function.Experimental results show that the expected goals can achieve by this measurement and control system with acquisition data basically the same with the set date,stable process and uniform thickness parts.The method has merits of good software interface,reliability,expandability and so on.