【摘要】 针对电火花数控加工特点,采用RTLinux解决数控系统的多线程和实时性问题,根据RTLinux特点,设计了电火花数控系统总体结构,采用分层设计和模块化的方法构造了软件插补的计算机数字控制(SoftCNC),提出了以SoftCNC为基础的电火花数控加工中心;利用Linux丰富的软件资源,构造了数控系统的外围软件,即基于Flex和Bison的数控代码解释器、基于客户机/服务器和浏览器/服务器架构的工艺数据库和图形用户界面,实现了可扩展、可配置、开放体系结构电火花数控加工系统。更多还原

【Abstract】 A new PC-based Electro-Discharge Machining (EDM) Computer Numerical Control (CNC) system was implemented based on a hard real-time kernel known as RTLinux. The RTLinux was used to achieve hard real-time capabilities for the EDM CNC real-time parts. Based on RTLinux characteristics, the structure of EDM CNC was designed and SoftCNC was fabricated. An EDM CNC center based on the SoftCNC was given. Linux was used to design EDM CNC peripheral software: NC decoder based on Flex & Bison,Client/Server(C/S) & Brower/Server(B/S)-based process database and Graphics User Interface (GUI). An open-architecture EMD CNC system was realized, which was configurable and combinable. It was indicated that the system was stable and reliable with low-latency.更多还原