Welding electrode device of steel bar framework seam welder

Abstract

The invention relates to a steel bar framework seam welder, and in particular relates to a welding electrode device of the steel bar framework seam welder. The welding electrode device comprises an electrode holder, a welding electrode arm, an electric conduction electrode arm, a water-cooling welding electrode plate, a water-cooling conducting electrode plate, a welding electrode plate and an electric conduction electrode plate, wherein the welding electrode arm and the electric conduction electrode arm are arranged on the electrode holder by rotating shafts; the water-cooling welding electrode plate and the water-cooling electric conduction electrode plate are respectively fixed at the upper parts of the welding electrode arm and the electric conduction electrode arm by an insulating padding plate; the lower ends of the welding electrode arm and the electric conduction electrode arm are respectively articulated with a pressure application mechanism; the upper ends of the water-cooling welding electrode plate and the water-cooling electric conduction electrode plate are respectively provided with a locating plate, and the lower ends of the water-cooling welding electrode plate and the water-cooling electric conduction electrode plate are respectively provided with a locating sleeve; and the welding electrode plate and the electric conduction electrode plate are respectively pressed on the water-cooling welding electrode plate and the water-cooling electric conduction electrode plate by the locating plates and the locating sleeves. The welding electrode device is capable of optimizing the stress direction of an electrode, and enables the electrode to be flexible in follow-up, thus solving the problem that a bolt is damaged due to the overheating of the original bolt fixing electrode plate or the electric conduction of the bolt.

Description

technical field [0001] The invention relates to a steel frame rolling welder, in particular to a welding electrode device for a steel frame rolling welder. During welding, the current is transmitted to the longitudinal ribs and circumferential ribs of the steel frame through the welding electrode, and the resistance heat generated by the joint surface of the two steel bars is used to weld the two steel bars together to produce a steel frame. Background technique [0002] The early steel frame roll welding machines mostly used wheel-type welding electrodes, which had problems such as poor electrical conductivity, severe heat generation, high loss, weak welding, and polygonal-shaped frames. The improved steel frame roll welding machines used plate-type welding electrodes. Because of its low loss, strong solder joints, and no polygonal phenomenon in the skeleton, it is widely used. Although the plate-type electrode structure has certain advantages compared with the previous wh...

AI Technical Summary

Problems solved by technology

[0002] The early steel frame roll welding machines mostly used wheel-type welding electrodes, which had problems such as poor electrical conductivity, severe heat generation, high loss, weak welding, and polygonal-shaped frames. The improved steel frame roll welding machines used plate-type welding electrodes. It is widely used because of its low loss, firm solder joints, and no polygonal phenomenon in the skeleton.

Although the plate-type electrode structure has certain advantages compared with the previous wheel-type electrodes, there are still problems such as poor electrode followability, serious electrode wear, difficulty in fast welding, and the bolts are easily burned when the bolt-fixed electrode plate conducts electricity.

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