连接CNC系统和套料软件的中间件设计与实现

Design and implementation of middleware for connecting CNC system and nesting software

摘要:

针对目前工业自动化用户的个性化需求,设计了一种连接CNC系统和套料软件的中间件系统。首先设计了一种适合普通工程师理解与使用的人机界面,并基于过程控制系统的PVI通信方式,实现CNC系统数据的实时显示与跟踪；通过FTP协议,将标准套料软件生成的G代码传输到CNC系统,并采用消息机制的进程通信方式,实时回传CNC系统自动解析并执行G代码时的运行参数,保证CNC系统执行路径与套料软件规划路径的一致性。最后,以某公司套料软件与B&R激光切割机CNC系统为对象,设计并实现了该中间件。经过工业现场测试表明,该中间件能够连接到B&R公司目前所有的硬件系统上,稳定性良好,并能满足用户个性化的开发,具有一定推广价值。

Abstract:

Aiming at the personalized need of current industrial automation users, a middleware system is designed to connect CNC system and nesting software. Firstly, a man-machine interface suitable for ordinary engineers to understand and use is designed, and based on the PVI communication mode of process control system, the data of CNC system can be displayed and tracked in real time; The G code generated by the standard nesting software is transmitted to the CNC system through the FTP protocol, and the process communication mode of the message mechanism is adopted to send back the operation parameters of the CNC system when it automatically analyzes and executes the G code in real time, so as to ensure the consistency between the execution path of the CNC system and the programming path of the nesting software. Finally, the middleware was designed and implemented with a company’s nesting software and the CNC system of B&R laser cutting machine. After industrial field tests, the middleware can connect to all the current hardware systems of B&R company, with good stability and can meet the personalized development of users, which is worth promoting.