Protection device for argon arc welding

Abstract

The utility model belongs to the technical field of argon arc welding gun accessories, and particularly relates to an argon arc welding protection device which comprises an argon arc welding gun and an air injection piece installed on the argon arc welding gun, a welding wire guide nozzle is arranged at the head of the argon arc welding gun, the air injection piece is provided with an air inlet end and an air outlet end, the air inlet end is connected with an air supply unit, and the air outlet end is connected with an air outlet. According to the argon arc welding gun, the air injection part is additionally arranged on the argon arc welding gun, and the air injection part and the welding wire guide nozzle are arranged in a single-point focusing mode, so that inert gas (such as argon) is sprayed out through the air injection part and then exists on the welding face of argon arc welding, the requirement of non-ferrous metal for the inert gas is met, and the welding quality is ensured; oxidation of the welding surface is prevented.

Description

Technical Field

[0001] The utility model belongs to the technical field of argon arc welding gun accessories, in particular to a protective device for argon arc welding. Background Art

[0002] TIG welding is an efficient and widely used welding technology in metal processing. With its high quality, high efficiency and precise welding effects, TIG welding has gradually become an indispensable welding process in industrial manufacturing, aerospace, shipbuilding and automobile manufacturing.

[0003] The basic principle of argon arc welding is to use inert gas (usually argon) as a protective medium to form a closed space around the arc and molten pool, thereby excluding oxygen and other harmful gases in the air. This protection method can prevent metal oxidation during welding, reduce the formation of welding defects such as pores and cracks, and ensure the purity and strength of the weld.

[0004] TIG welding equipment usually includes welding gun, power supply, argon gas supply system and control system. The welding gun is the core tool of TIG welding. It includes an electrode (usually a tungsten electrode) and a wire guide nozzle to guide and control the arc and welding wire. The power supply provides stable current and voltage to maintain stable burning of the arc. The argon gas supply system is responsible for providing sufficient inert gas to protect the welding area, and the control system can accurately control the welding process to ensure welding quality and efficiency.

[0005] The traditional argon gas supply system for argon arc welding is usually installed inside the welding gun. In actual use, different types of metals have different requirements for inert gases. For example, non-ferrous metals are more susceptible to adverse effects such as oxidation and nitridation during welding, which makes the traditional argon gas supply system for argon arc welding unable to meet the requirements, affecting the welding quality. Utility Model Content

[0006] The purpose of the utility model is to provide a protective device for argon arc welding in view of the above-mentioned technical problems, so as to achieve the effect of increasing the protection range and concentration of argon gas and improving the welding quality of non-ferrous metals when welding non-ferrous metals.

[0007] In view of this, the utility model provides a protective device for argon arc welding, including an argon arc welding gun, a welding wire guide nozzle is provided at the head of the argon arc welding gun, and further includes:

[0008] The jet component is installed on the argon arc welding torch and is provided with an air inlet end and an air outlet end;

[0009] The air inlet end is connected to an air supply unit, and the air outlet end and the welding wire guide nozzle are arranged in a single-point focusing manner.

[0010] In the above technical solution, further:

[0011] The gas injection component comprises a nozzle, a connecting component used for installing the nozzle on a argon arc welding torch, and a distribution component used for uniform gas outlet from the nozzle.

[0012] In the above technical solution, further, the nozzle includes:

[0013] The main body has an annular groove inside for installing the distribution parts;

[0014] The air inlet nozzle is arranged at one end of the main body and is used to introduce air into the main body and then lead the air out of the nozzle after passing through the distribution member.

[0015] In the above technical solution, further:

[0016] The distribution piece is a wire mesh.

[0017] In the above technical solution, further:

[0018] The two ends of the connecting piece are respectively detachably connected to the nozzle and the argon arc welding gun.

[0019] In the above technical solution, further:

[0020] A mounting platform for connecting the connecting parts is provided on the surface of the nozzle.

[0021] In the above technical solution, further:

[0022] The mounting platform is provided with threaded holes, and both ends of the connecting piece are provided with mounting holes, and the connecting piece is threadedly connected with the main body through the mounting holes.

[0023] The beneficial effects of the utility model are:

[0024] 1. By adding a jet component to the argon arc welding gun and setting the jet component and the wire guide nozzle to single-point focus, the inert gas (such as argon) is ejected from the jet component and exists on the welding surface of the argon arc welding, ensuring the requirements of non-ferrous metals for inert gas, ensuring the quality of welding, and preventing oxidation of the welding surface.

[0025] 2. By setting a wire mesh in the nozzle, the inert gas can be evenly distributed, so that the inert gas is evenly distributed on the welding surface, ensuring that the welding surface is within the protection range of the inert gas; at the same time, the evenly distributed gas outlet effect can also reduce the amount of inert gas used.

[0026] 3. By adopting a detachable connection for the nozzle, the installation and disassembly of the nozzle is improved, the convenience of use is improved, and the bolt connection can adjust the angle of the nozzle within a certain range, thereby improving the protective effect of the inert gas sprayed by the nozzle on the welding surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1It is a structural schematic diagram of the utility model;

[0028] Figure 2 It is an exploded view of the utility model;

[0029] Figure 3 It is a structural schematic diagram of the nozzle of the utility model;

[0030] Figure 4 This utility model Figure 3 Sectional view at AA in the middle;

[0031] The markings in the figure are as follows: 1, argon arc welding gun; 2, welding wire guide nozzle; 3, jet part; 30, nozzle; 300, main body; 301, annular groove; 302, air inlet nozzle; 31, connecting part; 32, distribution part; 33, mounting platform; 34, threaded hole; 35, mounting hole; 4, air inlet end; 5, air outlet end. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0033] In the description of the present application, it should be noted that the terms used herein are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0034] Embodiment 1:

[0035] This embodiment provides a protective device for argon arc welding, including an argon arc welding torch 1, a welding wire guide nozzle 2 is provided at the head of the argon arc welding torch 1, and further includes:

[0036] The jet component 3 is installed on the argon arc welding torch 1 and is provided with an air inlet end and an air outlet end;

[0037] The air inlet end is connected to the air supply unit, and the air outlet end is arranged with a single-point focusing on the welding wire guide nozzle 2;

[0038] Moreover, the focus of the single-point focus setting corresponds to the welding surface;

[0039] At the same time, the gas supply unit can adopt an argon cylinder, a pressure reducer, a flow meter and a delivery pipeline. The argon cylinder is used to store compressed argon gas, the pressure reducer is used to reduce the high-pressure argon gas in the argon cylinder to a low pressure suitable for welding operations, the flow meter is used to adjust and control the flow of argon gas, and the delivery pipeline is used to deliver the decompressed argon gas to the jet component 3. The specific structures of the argon cylinder, the pressure reducer, the flow meter and the delivery pipeline are all existing mature technologies. The specific models shall be based on actual use and will not be repeated here.

[0040] It can be seen from this embodiment that by adding a jet component 3 to the argon arc welding gun 1 and setting the jet component 3 and the wire guide nozzle 2 to a single point focus, the inert gas (such as argon) is ejected through the jet component 3 and exists on the welding surface of the argon arc welding, thereby ensuring the requirements of non-ferrous metals for inert gases, ensuring the quality of welding, and preventing oxidation of the welding surface.

[0041] Embodiment 2:

[0042] This embodiment provides a protective device for argon arc welding, which, in addition to the technical solutions of the above embodiments, also has the following technical features:

[0043] The gas injection member 3 comprises a nozzle 30 , a connecting member 31 for mounting the nozzle 30 on the argon arc welding torch 1 , and a distribution member 32 for uniform gas discharge from the nozzle 30 .

[0044] It can be seen from this embodiment that the inert gas sprayed from the nozzle 30 is evenly distributed through the distribution member 32, and thus the inert gas is evenly distributed on the welding surface, ensuring that the welding surface is within the protection range of the inert gas; at the same time, the evenly distributed gas outlet effect can also reduce the amount of inert gas used.

[0045] Embodiment 3:

[0046] This embodiment provides a protective device for argon arc welding, which, in addition to the technical solutions of the above embodiments, also has the following technical features. The nozzle 30 includes:

[0047] The main body 300 has an annular groove 301 formed inside for mounting the distribution member 32;

[0048] The air inlet nozzle 302 is disposed at one end of the main body 300 and is used to introduce air into the main body 300 and then pass through the distribution member 32 and out of the nozzle 30 .

[0049] It can be seen from this embodiment that the annular groove 301 is provided to ensure the installation and positioning of the distribution member 32 and the uniformity of the gas outlet, and the provision of the air inlet nozzle 302 facilitates the installation of the delivery pipeline, wherein the delivery pipeline can be a rubber tube.

[0050] Embodiment 4:

[0051] This embodiment provides a protective device for argon arc welding, which, in addition to the technical solutions of the above embodiments, also has the following technical features:

[0052] The distribution member 32 is a wire mesh;

[0053] Among them, the wire mesh can be made of metal material.

[0054] It can be seen from this embodiment that by using a metal mesh for the distribution member 32, it is easy to control the cost on the one hand, and on the other hand, the metal material has a certain structural strength, which can prevent the mesh from being deformed due to the outgassing of the inert gas and affect the uniformity of the outgassing of the inert gas.

[0055] Embodiment 5:

[0056] This embodiment provides a protective device for argon arc welding, which, in addition to the technical solutions of the above embodiments, also has the following technical features:

[0057] The two ends of the connecting member 31 are detachably connected to the nozzle 30 and the argon arc welding torch 1 respectively;

[0058] The detachable connection may be a bolt connection, and the connecting member 31 may be a steel sheet or a steel bar, etc., which may be appropriate for actual use.

[0059] It can be seen from this embodiment that the detachable connection facilitates the installation and disassembly of the nozzle 30, improves the replacement and maintenance of the nozzle 30, and can also facilitate the improvement of the existing argon arc welding gun 1, control costs, and ensure the welding needs of non-ferrous metals.

[0060] Embodiment 6:

[0061] This embodiment provides a protective device for argon arc welding, which, in addition to the technical solutions of the above embodiments, also has the following technical features:

[0062] A mounting platform 33 for connecting the connecting member 31 is provided on the surface of the nozzle 30 .

[0063] It can be seen from this embodiment that by providing the mounting platform 33, the connection strength between the connecting member 31 and the mounting platform 33 is improved, so that the connection fit between the connecting member 31 and the main body 300 of the nozzle 30 is improved, thereby ensuring the connection strength.

[0064] Embodiment 7:

[0065] This embodiment provides a protective device for argon arc welding, which, in addition to the technical solutions of the above embodiments, also has the following technical features:

[0066] The mounting platform 33 is provided with a threaded hole 34 , and both ends of the connecting member 31 are provided with mounting holes 35 , and the connecting member 31 is connected to the main body 300 through bolts through the mounting holes 35 .

[0067] It can be seen from the present embodiment that by opening a threaded hole 34 on the mounting platform 33, the connecting member 31 and the main body 300 of the nozzle 30 are connected by bolts, and the bolt connection facilitates the adjustment of the mounting angle of the main body 300 of the nozzle 30 within a certain range, thereby ensuring a single-point focusing setting between the gas outlet end of the jet member 3 and the welding wire guide nozzle 2, ensuring protection on the welding surface, ensuring that it is always within the protection range of the inert gas, and ensuring the welding quality.

[0068] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A protective device for argon arc welding, comprising an argon arc welding gun (1), wherein the head of the argon arc welding gun (1) is provided with a welding wire guide nozzle (2), characterized in that: Also includes: An air jet component (3) is mounted on the argon arc welding torch (1) and is provided with an air inlet end (4) and an air outlet end (5); The air inlet end (4) is connected to an air supply unit, and the air outlet end (5) and the welding wire guide nozzle (2) are arranged in a single-point focusing manner.

2. The protective device for argon arc welding according to claim 1, characterized in that: The gas injection component (3) comprises a nozzle (30), a connecting component (31) used for installing the nozzle (30) on the argon arc welding torch (1), and a distribution component (32) used for uniform gas discharge from the nozzle (30).

3. The protective device for argon arc welding according to claim 2, characterized in that: The nozzle (30) comprises: The main body (300) is provided with an annular groove (301) for installing the distribution member (32); The air inlet nozzle (302) is arranged at one end of the main body (300) and is used to introduce air into the main body (300) and then guide air out of the nozzle (30) through the distribution member (32).

4. The protective device for argon arc welding according to claim 3, characterized in that: The distribution member (32) is a wire mesh.

5. The protective device for argon arc welding according to claim 2, characterized in that: The two ends of the connecting piece (31) are respectively detachably connected to the nozzle (30) and the argon arc welding torch (1).

6. The protective device for argon arc welding according to claim 5, characterized in that: A mounting platform (33) for connecting the connecting piece (31) is provided on the surface of the spray head (30).

7. The protective device for argon arc welding according to claim 6, characterized in that: The mounting platform (33) is provided with a threaded hole (34), and both ends of the connecting member (31) are provided with mounting holes (35), and the connecting member (31) is connected to the main body (300) by bolts through the mounting holes (35).

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