Automatic mig welding head and automatic mig welding apparatus

Abstract

The application discloses an automatic MIG welding head, which comprises a shell, a C gear and a circuit structure capable of conducting electricity on the C gear; an annular track strip is arranged on the cavity wall of a C gear mounting cavity at the front part of the shell, and the C gear driven by a driving device is mounted on the annular track strip through an annular groove; a rectangular channel and a round hole channel are sequentially arranged inward on the front side end face of the shell; a C-shaped groove is arranged on the outer circumferential wall of the C gear, a plurality of air holes penetrating the inner side wall of the C gear and a welding wire channel are arranged on the groove bottom of the C-shaped groove, and the welding wire channel is communicated with the inner channel of a conductive nozzle fixed on the inner side wall of the C gear; an opening is arranged on the side wall of the shell, a guide structure is arranged between the C gear and the opening, and an anti-falling structure is arranged in the welding wire channel. The automatic MIG welding head has the advantages of uniform heat input, stable and reliable welding quality, good consistency, real-time adjustable welding speed, flexible and convenient application, wide application scene and the like.

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