摘要
以气门镦粗加工工艺为研究对象,分析了加工过程中的加热电流、镦粗压力、镦粗缸和砧子缸运动速度、加工材料这几个重要参数的过程控制对气门成形的具体影响,提出了每个参数的控制环的设计,以消除折叠、过热、过烧和"失肉"等缺陷。针对传统加工工艺重要参数过程不可调节,参数值不能保存等缺陷和不足,以及工艺参数较多,部分参数之间相关性强,调整一个参数,另外的参数也须改变的难以匹配问题,采用了迭代学习的算法实现控制模块。开发了基于VxWorks嵌入式的控制系统硬件和软件。改变了传统的依靠现场工人操作水平和经验的控制模式,提高了气门镦件的质量和生产效率。系统具有较强鲁棒性,符合工业综合控制向智能化发展的方向。
Taking the air valve upsetting processing technique as the research object, a control loop design method was presented base on analyzing the concrete effect of processing key parameters, such as the heat current, the system pressure, the speed and the rough materials to the valve during the process control in order to avoid the traditional processing craft＇s flaws including the valve pucker, over-heated, over-burned, and ＂lost-materials＂, and design the key parameters loop control system. The iteractive learning arithmetic was adopted to realize the module. The hardware and software based on the VxWorks operating system, were developed. The system has changed the traditional control mode which adjusts the process parameters with manual hand, and raiseds the productivity and the valve quality. The system has a strong robotic capability, which is in accordance with the development direction of intelligentized industrial integrated control.
出处
《锻压技术》
CAS
CSCD
北大核心
2007年第4期69-72,共4页
Forging & Stamping Technology
基金
广东省自然科学基金资助项目(990035)
关键词
电镦机
控制系统
迭代学习法
嵌入式
VXWORKS
upsetting machine
control system
iterative learning control
embedded system
VxWorks
