Split nozzle cap tube of welding gun for gas metal arc welding process

Abstract

The invention discloses a split nozzle cap tube of a welding gun for a gas metal arc welding process, and belongs to the technical field of welding gun structures for the gas metal arc welding process. The split nozzle cap tube comprises a reducing cap tube end and a transition sleeve, wherein the reducing cap tube end comprises a conical nozzle opening and a cap tube connecting part which are integrally formed; the transition sleeve is of a vertical tube structure; a first connecting segment is arranged at the upper segment of the inner side wall of the transition tube; a second connecting segment is arranged at the lower segment of the inner side wall of the transition tube; a ring-shaped groove is formed in the middle segment of the outer side wall of the transition sleeve; and the cap tube connecting part is coaxially embedded in and fixedly connected with the first connecting segment. The split nozzle cap tube provided by the invention can be compatible and matched with the inner core of a conventional standard welding gun nozzle, so that the utilization ratio of used parts is improved; a novel welding gun nozzle end part defined by the split nozzle cap tube and the conventional standard welding gun nozzle can enter and reach a weld position in a narrow gap more easily; and furthermore, the turning radius is smaller, an inclination angle between the welding gun and the weld position can always be kept in the optimum welding posture easily, and the freedom degree and the flexibility of welding operation can be improved remarkably.

Description

technical field [0001] The invention belongs to the technical field of welding torch structure for metal gas shielded arc welding technology, and in particular relates to a split nozzle cap barrel of a welding torch for metal gas shielded arc welding technology. Background technique [0002] MIG arc welding uses inert gas such as argon or non-inert gas such as argon-oxygen and argon-carbon dioxide as the protective gas medium, and uses the arc that continuously feeds the meltable welding wire and burns between the welding wire and the workpiece as the heat source. weld. [0003] like Figure 1 to Figure 2 As shown, the nozzle part of an existing gas nozzle cap cylinder with an outer diameter of 25 mm for gas metal arc welding usually includes a 25 mm type standard welding torch injection nozzle inner core 1 and a gas nozzle cap cylinder 2, and the 25 mm type standard welding torch sprays The nozzle inner core 1 includes a nozzle seat 1-2 with an insulating sleeve and a cond...

AI Technical Summary

Problems solved by technology

[0007] In order to solve the problem of being unable to produce a new type of small-caliber melting electrode gas-shielded welding torch nozzle cap barrel compatible with the old standard welding torch nozzle inner core due to the lack of similar design reference solutions, it is impossible to use the conventional 25mm standard welding torch nozzle to achieve alignment. To solve the technical problem of high-standard welding operations on weld seams in narrow spaces, the invention provides a split nozzle cap tube for a welding torch used in a gas metal arc welding process

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