Arc voltage induction wire feeder

Abstract

The invention discloses an arc voltage induction wire feeder, comprising a wire feeding mechanism and a control system; the wire feeding mechanism comprises a printed winding motor; the control system comprises a voltage control module, a motor speed regulation and welding sequence control module and a secondary current on-off control module; the voltage control module converts an input high-voltage direct-current power supply into a stabilized low-voltage direct-current power supply, and outputs the stabilized low-voltage direct-current power supply to supply power to the wire feeding mechanism; the motor speed regulation and welding sequence control module controls the voltage control module, converts an armature voltage which is supplied to the printed winding motor of the wire feedingmechanism to regulate changes of rotating speeds of the printed winding motor, so as to regulate an electric arc length within a normal working range by changing a wire feeding speed or a welding wire melting speed; the secondary current on-off control module controls the wire feeding mechanism powering on to work or powering off through a single-pole direct-current contactor. The invention stably feeds the wires, provides the stabilized power voltages, has a controllable wire feeding speed and electric arc length, and further improves the welding quality.

Description

[technical field] [0001] The invention relates to the field of welding equipment machinery, in particular to an arc voltage induction wire feeder. [Background technique] [0002] With the increasing influence of welding technology in today's industrial production, especially in my country's automobile and aerospace enterprises, the requirements for welding efficiency and welding quality are getting higher and higher, and the automation of welding equipment is also imminent. In welding equipment, it is extremely important to have a wire feeder mechanism with excellent performance. The stability of wire feeding, the accuracy of wire feeding and the cooperation between wire feeding and welding arc greatly affect the performance of the weld. In metal arc welding, unstable wire feeding will cause fluctuations in welding parameters, and the frequency of defects is high in the arc state and the melting and transition process of welding wire metal; in metal arc welding, unstable wir...

AI Technical Summary

Problems solved by technology

This mode of wire feeder mainly uses the power supply characteristics (constant voltage characteristics) to meet the stability of the welding short circuit process, and the extended cable has poor adaptability, which cannot well solve the spatter and transition process stability of the gas shielded welding under various current specifications. In addition, due to the existence of the control cable between the power supply and the wire feeder, it is easy to break the line and the reliability is poor

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