基于磁控电弧传感的焊缝偏差信息检测与实时跟踪系统

将磁场控制电弧技术应用于焊缝跟踪,利用磁场作用电弧使电弧摆动来扫描焊缝,通过检测焊接电流的变化规律来检测焊缝的偏差信息,设计了一套焊缝跟踪系统,该焊接系统即为跟踪系统,大大提高了跟踪的实时性.在信号处理方面,采用硬件滤波和软件处理相结合的方式,取得了较好的效果.在跟踪策略上,分别分析了横向和高低偏差的处理方法.通过实际的焊缝跟踪试验,验证了磁控电弧传感具有良好的工作特性和整个跟踪系统的有效性.

Deviation Detection and Real-time Seam Tracking System Based on Magnetic-Control Arc Sensor

The technology of magnetic-control arc being applied to seam-tracking,using magnetic field to swing arc to scan the welding seam,getting the deviation information by detecting changes of the welding current,this paper designed a set of seam tracking system,in which the welding system together with the tracking system can greatly improve the real-time tracking of the system.In the aspect of signal processing,the methods of hardware and software were both used,which achieved good results.To the tracking rules,the processing methods of levels and horizontal deviation were analyzed.At last,the effectiveness of the system was verified by a practical seam tracking experiment.