Narrow-gap TIG welding gun

Abstract

The invention discloses a narrow-gap TIG welding gun. The narrow-gap TIG welding gun is different from the traditional welding gun, a left air cover and a right air cover are arranged on the two sidesof a welding gun main body correspondingly, due to the fact that the direction is perpendicular to the width direction, the size limit is small, and a large protection space can be achieved; and thedouble-air-cover design is adopted, so that the argon protection effect is also improved. The welding gun main body is internally provided with a cooling structure; and two insulating blocks for separating the welding gun main body from the left air cover and separating the welding gun main body from the right air cover correspondingly are arranged, so that the air covers can be prevented from being electrified, an electrified area can be reduced to the minimum, a ceramic insulation layer does not need to be sprayed on the surface of the whole welding gun, and the situation that the width of the welding gun is increased is avoided. In general, the welding gun has the advantages that the high stability of a traditional TIG welding arc is maintained, the layout is compact, the welding gun and the water cooling are integrated into a whole, the welding gun can be integrally installed on an automatic welding machine, a groove gap can be greatly reduced, so that a lot of welding materials and electric energy consumption are saved, and the welding productivity is improved.

Description

technical field [0001] The invention relates to a welding torch, especially a TIG welding torch. Background technique [0002] Tungsten Inert Gas Welding (TIG) welding torch (hereinafter referred to as TIG welding torch) is used to clamp the tungsten electrode, conduct welding current and transport and spray shielding gas. The structure of the existing water-cooled TIG welding torch is as follows: figure 1 shown. The structure is mainly composed of tungsten electrode 1, ceramic nozzle 2, gas guide sleeve 3, electrode chuck 4, gun body 5, electrode cap 6, air intake pipe 7, cooling water pipe 8, control switch 9, and welding torch handle 10. When welding, in the middle of the argon atmosphere, when the current exceeds 150A, the cooling water pipe 8 is used to cool the gun body, and the air inlet pipe 7 transmits the gas to the ceramic nozzle 2 to spray the protective gas, which plays the role of isolating the air and protecting the molten pool during the welding process ef...

AI Technical Summary

Problems solved by technology

In order to ensure that the welding torch has good heat dissipation and achieve the accessibility of the welding torch, a Y-shaped groove must be opened for welding. The angle of the groove needs to be 70°, and the weld seam is wide and deep. Not only the amount of filler metal increases, but also the welding materials and energy consumption. increase, and the welding efficiency decreases, and at the same time, there will be a phenomenon that the side wall is not fused, which will affect the quality of the weld

Obviously, traditional welding methods can no longer meet the needs of these components

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