高压舱水下焊接系统设计及电信号采集  

Design of high pressure cylinder underwater welding system and its signal acquisition

作　　者：黄晋[1] 石永华[1] 

机构地区：[1]华南理工大学机械工程学院,广东广州510640

出　　处：《电焊机》2011年第7期10-14,29,共6页Electric Welding Machine

基　　金：国家自然科学基金资助项目(50705030);广东省自然科学基金资助项目(91510080190000018);中央高校基本科研业务费专项资金资助项目(2009ZM0318)

摘　　要：基于陆上焊接电源、高压舱、工控机、运动控制卡、两个具有编码器反馈信号的速度控制模式的直流伺服电动机、一个步进电机以及电动机驱动器、工作台、霍尔电流传感器、数据采集卡等,设计并实现了一种高压舱水下焊接系统。在该系统中,通过工控机上的人机交互界面发出的信号使电机驱动工作台三轴的运动控制带动焊枪在高压舱内进行模拟不同水深的水下焊接。编写了针对双路电压信号采集的Labview数据采集程序,且通过不断调试系统,在Labview程序中进行了各种软件滤波的对比,最终采用Inv Chebyshev滤波并进行了误差修正,完善了系统数据采集的Labview程序。同时还初步采集了一组水下焊接数据,该系统运行良好,可以进行下一步试验。Based on land-based welding power source,high-pressure cylinder,industrial controlling computer,motion control card,two DC servo motors which has encoder feedback signal mode speed control,a stepper motor and the motor driver,table,Hall current sensors,data acquisition card,a high-pressure cylinder underwater welding system is designed and implemented in this article.In the system,through the interactive interface on the computer,signals are sent to the motor driving the table＇s three-axis motion which take the welding gun weilding in the high-pressure cylinder which can simulate different water depths of underwater welding.In this article,the dual voltage signal acquisition labview data acquisition program is also made,and through continuous debugging system and a variety of labview software filter program contrast,the eventual adoption is the Inv Chebyshev filter and plus the error correction,the system labview data acquisition program has been improved,and also a set of preliminary underwater welding data is collected,the test indicating that the system is running well,so next experiment can be done.

关 键 词：焊接电源 水下焊接 运动控制 数据采集 

分 类 号：TG409[金属学及工艺—焊接]