Duplex spot welding electrode

Abstract

The invention relates to a duplex spot welding electrode. Improvements are made on the basis of an electrode holder, a first electrode, a second electrode, a first guide pillar and a second guide pillar, namely an auxiliary block is fixed on the bottom surface of the electrode holder; two through holes are arranged in the auxiliary block; a sunken groove is arranged on the upper part of the auxiliary block, and is communicated with the two through holes; a sliding block is positioned in the sunken groove; each of the two lateral surfaces of the sliding block is provided with a downwardly inclined surface; a groove matched with the corresponding downwardly inclined surface of the sliding block is arranged on the lateral surface of each of the first and second guide pillars; a spring is arranged in each of mounting holes, and makes each of the first and second electrodes always tend to be exposed out of the electrode holder; and each spring is in a natural state, the sliding block is pressed against the grooves on the first and second guide pillars, and a gap is formed between the downwardly inclined surface on each of the two sides of the sliding block and each groove. The two electrodes can float and be automatically leveled, so that the two electrodes contact a workpiece with the same force, a pseudo soldering phenomenon is avoided, the number of overhauling times of the abraded electrode is decreased, the use cost is decreased, and the welding efficiency is improved.

Description

technical field [0001] The invention relates to an electrode, in particular to a double spot welding electrode of a spot welding machine. Background technique [0002] Spot welding is a common connection between metal and metal, and the usual spot welding operation is performed by a spot welding machine with a fixed workbench. The spot welding connections carried out on the spot welding machine are mostly single-point welding, that is, welding the next point after welding one. Although this welding method can ensure the normal welding of most spot welding parts, the welding efficiency is low, and after the lower electrode of the spot welding machine wears out, the phenomenon of virtual welding will occur during the spot welding process, which will directly affect the quality of the welded product . [0003] In order to overcome the virtual welding phenomenon, at present, existing spot welders with floating workbenches, such as the structure disclosed in CN202006336U "A Spo...

AI Technical Summary

Problems solved by technology

However, since the two upper electrodes all adopt a fixed structure, that is, the double spot welding tool is installed on a spot welding machine with a floating workbench. Due to the different wear amounts of the two electrodes, the fixed electrode is relatively weak. Short electrodes still have virtual welding phenomenon

And when an electrode wears out, it needs to be removed for repair, which will still affect the production efficiency to a certain extent

Images