基于双处理器的超声波焊接电源设计
2020-08-03刘晓光蒋晓明黄丹曹立超王攀
刘晓光 蒋晓明 黄丹 曹立超 王攀
摘 要： 文中设计一种基于DSP和ARM9双处理器控制的超声波焊接电源并介绍了双处理超声波焊接电源的硬件组成和软件设计流程。采用DSP控制器对超声波焊接电源外设工作状态以及焊接工艺过程控制。采用ARM9控制器设计了基于Linux系统的人机界面控制系统。采用双口RAM技术实现双处理器的数据共享，确保超声波焊接电源工艺参数、状态信息等数据的快速、实时、可靠传输，以适应用户对超声波焊接电源远程监控和故障诊断等大量数据处理的需要。搭建超声波金属焊接试验平台进行焊接测试，实验结果表明，研制的超声波电源具有良好的人机交互性并能得到较好的焊接效果。
关键词： 超声波电源设计; 金属焊接; 过程控制; 数据共享; 数据传输; 焊接测试
中图分类号： TN752.6?34 文献标识码： A 文章编号： 1004?373X（2020）08?0109?04
Design of ultrasonic welding power supply based on dual processor
LIU Xiaoguang1， JIANG Xiaoming1，2， HUANG Dan1， CAO Lichao1， WANG Pan1
（1. Guangdong Key Laboratory of Modern Control Technology， Guangdong Institute of Intelligent Manufacturing， Guangzhou 510070， China;
2. Guangdong Institute of Ocean Engineering Equipment & Technology， Zhuhai 519055， China）
Abstract： An ultrasonic welding power supply based on dual processor control of DSP and ARM9 is designed in this paper， whose hardware composition and software design process are introduced. The peripheral working state and welding procedure process of the ultrasonic welding power supply are controlled with the DSP controller. The human?machine interface control system based on Linux system is designed by means of ARM9 controller. The data sharing of dual processors is realized by means of the dual?port RAM technology， which ensures the fast， real?time and reliable transmission of data such as process parameters and status information of the ultrasonic welding power supply， so as to meet the needs of users for large amount of data processing such as remote monitoring and fault diagnosis of the ultrasonic welding power supply. The testing platform of ultrasonic metal welding was built for welding test. The experiment results show that the developed ultrasonic power supply has a good human?computer interaction performance and welding effect.
Keywords： ultrasonic power supply design; metal welding; process control; data sharing; data transmission; welding test
0 引 言
随着社会数字化程度越来越高，人们对工业产品功能和性能的需求也越来越高，嵌入式系统设备逐渐成为工业领域的主角。超声波金属焊接电源作为动力电池制造行业中的重要设备，为适应焊接生产线的需要，超声波焊接电源本身具有易操作性、智能化监测和故障诊断功能、可靠性等特征。目前，工业应用中的超声波焊接电源主要为以下两种：
1） 以模拟电路为主控制器件的超声波焊接电源[1?2]。这种电源控制结构单一，控制电路较复雜，控制精度较低，参数整定不方便[3]，电源的稳定性和可靠性不高，适合于较小功率且工艺简单的手工或半自动焊生产，对焊接工具头负载的适应性较差，不易进行升级改造。……
