Frequency-convert feedingr control of flash butt welding

In this paper,a control system of frequ en cy-convert feeding adopted the frequency-converter in controlling cam flash bu tt welding machine is designed.The system is combined with Visual C ++ at the platform of industrial computer.By changing the frequency of the fr equency-converter,feeding speed of workpiece is controlled.Through the experi ments,it shows that the system realize the different offset curves with the s ame cam shape and we can control the all kinds of presetparameters of controlli ng system according to the material style and size of work-piece.The system re alize s the flexiable control to the flash butt welding machine.