基于双闭环结构的线切割机自动分度加工控制系统研究与设计  

Research and Design on Control System of WEDM Automatic Indexing and Machining Based on Structure of Double Closed-loop

作　　者：杨继森[1] 张静[1] 万文略[1] 郑方燕[1] 

机构地区：[1]重庆理工大学机械检测技术与装备教育部工程研究中心,重庆400050

出　　处：《组合机床与自动化加工技术》2010年第7期40-43,共4页Modular Machine Tool & Automatic Manufacturing Technique

基　　金：国家自然科学基金项目(50575235);国家自然科学基金项目(50975304)

摘　　要：针对时栅产品化过程中普通线切割机加工回转分度精度不足,人工操作效率低的问题,提出了利用自制的时栅分度转台结合嵌入式系统技术,研究并开发了一套线切割机自动分度加工控制系统。该系统以双微控制器为基础,形成双闭环控制结构。局部闭环实现加工系统的自动分度定位,而系统闭环实现整个系统按工序自动分度和自动加工。实际应用表明,该控制系统不仅能够完成高精度分度加工,而且能够实现无人值守自动加工,大大提高生产效率,降低生产成本。To improve the problem of the low indexing precision of WEDM and inefficiency for hand operation, One control system of WEDM automatic indexing and machining is proposed based on time grating indexing table and embedded technology. Double MCU is used to form double closed-loop structure in the control system. The work of automatic indexing is complemented in the local closed-loop, and the work of indexing and machining is complemented in the system closed-loop. The applications conform that high precision indexing and machining is achieved, and the process is unattended. The production efficiency is greatly improved and the cost of production is greatly reduced.

关 键 词：闭环 时栅 分度转台 线切割机 嵌入式 

分 类 号：TG65[金属学及工艺—金属切削加工及机床] TP393[自动化与计算机技术—计算机应用技术]