Aluminum brazing nozzle device adopting natural gas

Abstract

The utility model relates to the technical field of brazing, in particular to an aluminum brazing welding nozzle device adopting natural gas. Comprising a welding nozzle connector and an auxiliary assembly, the welding nozzle connector is provided with a main guide hole and a flow dividing hole, the auxiliary assembly comprises a limiting table and a sleeve, the sleeve is provided with an auxiliary guide hole and a guide hole, the auxiliary guide hole is communicated with the main guide hole and is coaxial with the main guide hole, the diameter of the auxiliary guide hole is smaller than that of the main guide hole, and meanwhile linear jet flames are formed through the main guide hole and the auxiliary guide hole. Part of flames enter the guide holes through the flow dividing holes and then are sprayed out, flame spraying output point positions can be increased, multiple flames are formed, the heating area of a part is increased, rapid and uniform heating is facilitated, and the problems that due to the fact that only one flame spraying hole is located in the center, flames are excessively concentrated in the using process, and the using cost is low are solved. And during machining, parts are heated unevenly, the whole heating speed of the parts is low, and brazing machining and using are not facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of brazing, in particular to an aluminum brazing torch device using natural gas. Background Technique

[0002] Brazing is a material connection method. After heating the brazing filler metal with a melting point lower than that of the welded part and the welded part to the melting temperature of the brazing filler metal at the same time, the liquid brazing filler metal is used to fill the gaps of the solid workpiece to connect the metals. During brazing, first, the oxide film and oil stain on the contact surface of the base material should be removed to facilitate the capillary action after the brazing filler metal melts, and increase the wettability and capillary fluidity of the brazing filler metal. According to the different melting points of the brazing filler metal, brazing is divided into hard brazing and soft brazing.

[0003] The brazing heating temperature is relatively low, and the influence on the structure and properties of the base material is small. The brazed joint is flat and smooth, with a beautiful appearance, and the deformation of the welded part is small. Especially when using the brazing method of uniform heating, the deformation of the welded part can be reduced to the lowest level, and it is easy to ensure the dimensional accuracy of the welded part. Some brazing methods can weld dozens or hundreds of brazing seams at a time, with high productivity.

[0004] At present, for the ordinary aluminum brazing torch using natural gas, since there is only one flame spray hole in the central position, the flame is too concentrated during use, which easily causes uneven heating of the parts during processing, and the overall heating speed of the parts is also slow, which is not conducive to brazing processing. Content of the Utility Model

[0005] The purpose of the utility model is to provide an aluminum brazing torch device using natural gas, which solves the problem that for the existing aluminum brazing torch using natural gas, since there is only one flame spray hole in the central position, the flame is too concentrated during use, which easily causes uneven heating of the parts during processing, and the overall heating speed of the parts is slow, which is not conducive to brazing processing.

[0006] To achieve the above purpose, the utility model provides an aluminum brazing torch device using natural gas, including a torch connector, the torch connector has a main hole, the main hole penetrates through the torch connector, and further includes an auxiliary component;

[0007] The auxiliary component includes a limiting platform and a sleeve. The limiting platform is integrally formed with the torch connector and is located on the front side of the torch connector. The sleeve is welded to the rear side of the torch connector. The sleeve has a guiding hole and a leading hole. The guiding hole is communicated with the main hole, the guiding hole is coaxial with the main hole, and the diameter is smaller than that of the main hole. The leading holes are annularly arranged on the sleeve and are not communicated with the guiding hole;

[0008] The tip connector further has shunt holes, which are singly connected to each other with the guiding holes and are annularly arrayed on the tip connector.

[0009] Among them, the guiding holes and the shunt holes form an angle of 120°.

[0010] Among them, the sleeve further has a shunt groove, which is connected to the guiding hole and is located on the side of the sleeve away from the tip connector.

[0011] Among them, six guiding holes and six shunt holes are respectively provided.

[0012] Among them, a wear-resistant layer is provided on the outer surface of the mounting and mating portion of the tip connector.

[0013] An aluminum brazing tip device using natural gas according to the present utility model has a main guiding hole and shunt holes provided on the tip connector. The shunt holes are singly connected to each other with the guiding holes. The limiting platform is integrally formed with the tip connector and is provided with a mounting hole. The sleeve has an auxiliary guiding hole and a guiding hole. The auxiliary guiding hole is connected to the main guiding hole and is coaxial with the main guiding hole, and its diameter is smaller than that of the main guiding hole. The guiding holes are annularly arrayed on the sleeve and are not connected to the auxiliary guiding hole. During operation, a linear jet flame is formed through the main guiding hole and the auxiliary guiding hole. At the same time, part of the flame enters the guiding hole after passing through the shunt hole and then sprays out, which can increase the flame jet output points and form multiple flames, increasing the heat-receiving area of the part, facilitating rapid and uniform heating, and thus solving the problem that the existing aluminum brazing tip using natural gas has only one flame spray hole at the center position, resulting in overly concentrated flame during use, uneven heating of the part during processing, slow overall heating speed of the part, and being not conducive to brazing processing. Description of the Drawings

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art.

[0015] Figure 1 is the overall structural schematic diagram of the aluminum brazing tip device using natural gas according to the first embodiment of the present utility model.

[0016] Figure 2 is the cross-sectional view of the sleeve according to the first embodiment of the present utility model.

[0017] Figure 3 is the overall structural schematic diagram of the aluminum brazing tip device using natural gas according to the second embodiment of the present utility model.

[0018] In the figure: 101 - welding tip connector, 102 - main hole, 103 - limiting platform, 104 - sleeve, 105 - auxiliary hole, 106 - guiding hole, 107 - shunt hole, 108 - shunt groove, 201 - wear-resistant layer. Detailed implementation mode

[0019] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the accompanying drawings. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present invention and should not be construed as a limitation to the present invention.

[0020] Embodiment 1:

[0021] As Figure 1 and Figure 2 shown, wherein Figure 1 is a schematic diagram of the overall structure of an aluminum brazing welding tip device using natural gas, Figure 2 is a cross-sectional view of the sleeve 104. The present invention provides an aluminum brazing welding tip device using natural gas: including a welding tip connector 101 and an auxiliary component. The welding tip connector 101 has a main hole 102 and a shunt hole 107. The auxiliary component includes a limiting platform 103 and a sleeve 104. The sleeve 104 has an auxiliary hole 105 and a guiding hole 106. The auxiliary hole 105 communicates with the main hole 102. The auxiliary hole 105 and the main hole 102 are coaxial, and the diameter is smaller than that of the main hole 102. Through the foregoing solution, the problem that the existing aluminum brazing welding tip using natural gas has only one flame injection hole in the center position, resulting in too concentrated flame during use, easy uneven heating of parts during processing, slow overall heating speed of parts, and being not conducive to brazing processing and use can be solved. It can be understood that the foregoing solution can facilitate the rapid and uniform heating of parts during brazing processing and is more conducive to processing and use.

[0022] In this embodiment, the welding tip connector 101 has a main hole 102. The main hole 102 penetrates through the welding tip connector 101. The main hole 102 is used for the main injection of the flame.

[0023] Among them, the limiting platform 103 is integrally formed with the welding nozzle connector 101 and is located on the front side of the welding nozzle connector 101. The sleeve 104 is welded to the rear side of the welding nozzle connector 101. The sleeve 104 has a guiding hole 105 and a leading hole 106. The guiding hole 105 communicates with the main guiding hole 102. The guiding hole 105 and the main guiding hole 102 are coaxial, and the diameter is smaller than that of the main guiding hole 102. The leading holes 106 are annularly arrayed on the sleeve 104 and do not communicate with the guiding hole 105. The limiting platform 103 is integrally formed with the welding nozzle connector 101. An installation hole is provided on the limiting platform 103 to facilitate the fixed connection of the welding nozzle connector 101. After the sleeve 104 is sleeved on the rear side of the welding nozzle connector 101, it is welded and fixed. The guiding hole 105 is provided on the sleeve 104, is coaxial with the main guiding hole 102, but the diameter is smaller than that of the main guiding hole 102, aiming to make the flame more concentrated when spraying out. The leading holes 106 are annularly arranged on the sleeve 104 and do not communicate with the guiding hole 105.

[0024] The welding nozzle connector 101 further has a shunt hole 107. The shunt hole 107 is individually connected to the leading hole 106 and is annularly arrayed on the welding nozzle connector 101. The shunt hole 107 is used to shunt the flame output from the main guiding hole 102, introduce the shunted flame into the leading hole 106, and finally spray out through the leading hole 106 to form multiple flames.

[0025] Secondly, the leading hole 106 and the shunt hole 107 form an included angle of 120°. After the multiple leading holes 106 and the shunt hole 107 are welded and installed on the sleeve 104, they are matched one by one and individually connected, and are mutually at 120°. When the sleeve 104 is welded, alignment marking lines are respectively provided on the welding nozzle connector 101 and the sleeve 104 in advance to facilitate quick alignment welding. During welding, after the marking lines are aligned, welding can be carried out. At this time, the leading hole 106 and the shunt hole 107 can be in a connected position, and the connection state is maintained after welding.

[0026] Then, the sleeve 104 further has a shunt groove 108. The shunt groove 108 communicates with the leading hole 106 and is located on the side of the sleeve 104 away from the welding nozzle connector 101. The shunt groove 108 is provided on the outlet side of the leading hole 106, and after being provided, it will facilitate the expansion of the flame when spraying out.

[0027] Finally, six leading holes 106 and six shunt holes 107 are respectively provided. Six leading holes 106 and six shunt holes 107 are respectively provided, so as to increase the number of flame lines.

[0028] When using the utility model to solve the problem of the existing aluminum brazing nozzle for natural gas, because there is only one flame spray hole in the central position, the flame is too concentrated during use, which easily causes uneven heating of parts during processing, slow overall heating speed of parts, and is not conducive to brazing processing. During operation, first, the nozzle connector 101 can be connected and fixed to the pipeline through multiple mounting holes provided on the limiting table 103 to form a flame spraying channel. Then, the flame enters from the main hole 102. A part of the flame is directly transported and ejected through the auxiliary hole 105. At the same time, another part of the flame can enter the six guiding holes 106 respectively after passing through the six shunt holes 107, and finally is discharged through the guiding holes 106 and the shunt groove 108. Thus, the number of flame spraying output points can be increased to form multiple flames, increasing the heat receiving area of the parts, facilitating rapid and uniform heating, and further solving the problem of the existing aluminum brazing nozzle for natural gas, because there is only one flame spray hole in the central position, the flame is too concentrated during use, which easily causes uneven heating of parts during processing, slow overall heating speed of parts, and is not conducive to brazing processing.

[0029] Embodiment 2:

[0030] As Figure 3 shown, wherein Figure 3 is a schematic diagram of the overall structure of an aluminum brazing nozzle device using natural gas. On the basis of the first embodiment, the utility model provides an aluminum brazing nozzle device using natural gas, and a wear-resistant layer 201 is arranged on the outer surface of the installation and matching part of the nozzle connector 101.

[0031] In this embodiment, by arranging the wear-resistant layer 201 on the outer surface of the installation and matching part of the nozzle connector 101, when it is matched with the installation cavity of the connection installation head on the pipeline, it can improve its wear resistance, extend its replacement time, improve stability and reduce the use cost at the same time, and further facilitate use.

[0032] The above-disclosed are only one or more preferred embodiments of the present application, and the scope of rights of the present application cannot be limited thereby. Those of ordinary skill in the art can understand all or part of the processes of implementing the above embodiments, and the equivalent changes made according to the claims of the present application still fall within the scope covered by the present application.

Claims

1. A natural gas aluminum brazing nozzle device, comprising a nozzle connector, the nozzle connector having a main guide hole, the main guide hole passing through the nozzle connector, characterized in that: Also included are auxiliary components; The auxiliary component includes a limit platform and a sleeve, the limit platform is integrally formed with the welding tip connector and is located at the front side of the welding tip connector, the sleeve is welded at the rear side of the welding tip connector, the sleeve has a coaching hole and a guide hole, the coaching hole is connected to the main guide hole, the coaching hole is coaxial with the main guide hole, and the diameter is smaller than the main guide hole, the guide hole annular array is on the sleeve, and is not connected to the coaching hole; The welding tip connector also has a diversion hole, which is connected to the guide hole in a single manner and arranged in a circular array on the welding tip connector.

2. The aluminum brazing nozzle device using natural gas as claimed in claim 1, characterized in that: The guide hole and the diversion hole form an angle of 120°.

3. The aluminum brazing nozzle device using natural gas as claimed in claim 1, characterized in that: The sleeve is also provided with a diverter groove, which is communicated with the guide hole and is located at a side of the sleeve away from the welding nozzle connector.

4. The aluminum brazing tip device using natural gas as claimed in claim 1, characterized in that: The guide holes and the diversion holes are each provided in six.

5. The aluminum brazing nozzle device using natural gas as claimed in claim 1, characterized in that: The outer surface of the mounting fitting portion of the welding tip connector is provided with a wear-resistant layer.

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