窄间隙焊接摆动电弧传感试验系统的开发

Development of a Narrow Gap Welding Experiment System for Oscillating Arc Sensing

为了提高窄间隙焊接摆动电弧传感的精度和可靠性,研究电弧到窄间隙坡口侧壁的距离对电弧传感特征参数的影响规律,基于TMS320F2812和Labview软件,开发了一种能同步采集电弧图像、焊接电压、焊接电流和焊枪摆动位置四路信号的电弧传感试验系统。介绍了试验系统的主体结构设计和同步采集系统设计。采用P-GMAW的焊接方式对开发的试验系统进行测试。结果表明,该系统可靠有效,为深入研究窄间隙摆动电弧传感特征奠定了必要的基础。

In order to improve the precision and reliability of oscillating arc sensor in narrow gap welding, as well as to research the influence law of distance between arc and the narrow gap groove side wall on arc sensor characteristic parameters, an arc sensor experiment system which could simultaneously acquire arc image, welding voltage, welding current and welding torch swing position four signals was developed based on TMS320 F2812 and Labview. The main structure design and synchronous acquisition system design of the experimental system were introduced. The developed experiment system was tested by the welding method of P-GMAW. It is proved that the system is reliable and effective. This system has laid the necessary foundation for the further study of the arc sensing characteristics of the narrow gap oscillating arc.