Conductive nozzle seat and weld gun

Abstract

The embodiment of the invention provides a conductive nozzle seat. A ceramic layer is applied to the outer wall and/or the inner wall of the conductive nozzle seat. The conductive nozzle seat can effectively prevent conductivity of splash between a nozzle and the conductive nozzle seat and meanwhile, an insulating cost is lowered. The embodiment of the invention further correspondingly provides a weld gun comprising the conductive nozzle seat. A separating material is arranged between the conductive nozzle seat and the nozzle, so that the distance therebetween is increased to a certain extent, electric conductivity can be prevented, and the manufacturing cost, as a result of increase of insulation, is further saved. When a worker manages the weld gun, a material needs not to be managed, so that a lot of management cost is lowered. The ceramic material is applied to the outer surface of the conductive nozzle seat, so that the conductive nozzle seat is of very good insulating action, and the splash is unlikely to stick to the surface, and therefore, the conductive probability is further reduced; as a ceramic insulating air sifter is no longer used, the probability that the air sifter is fragile is avoided, and the nozzle is further more conveniently detached.

Description

technical field [0001] The application relates to the technical field of welding and cutting equipment and consumable parts, in particular to a contact tip seat and a welding torch. Background technique [0002] The gap between the traditional contact tip holder and the nozzle often needs to be disassembled, but because welding spatter often enters the gap between the contact tip and the nozzle, the gap between the contact tip holder and the nozzle is often ignited, and the welding torch is burned out. [0003] Therefore, in order to avoid the above problems, the existing technology adopts some solutions, mainly as follows: one is the European structure, the European structure generally adds an insulating sleeve between the contact tip seat and the nozzle, and the insulating sleeve is generally made of heat-resistant PVC or special It is made of Teflon material. After using the insulating sleeve, it can effectively prevent the splash and make the conduction between the conta...

AI Technical Summary

Problems solved by technology

However, the above two schemes still have major disadvantages. Both the European structure and the Japanese structure add a material, which increases the overall cost of the welding torch to a certain extent, and also increases the management cost of materials.

On the other hand, the insulating sleeve of European structure will age after being baked by sparks after long-term use, which will affect the service life; the ceramic air screen of Japanese structure, although it avoids the conduction between the contact tip seat and the nozzle, it is still inevitable. The spatter sticks between the ceramic air screen and the nozzle, and when it is disassembled and unscrewed by force, it will often cause the ceramic air screen to break

Or broken due to temperature fluctuations

So the above two schemes still have many defects

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