CN220388205U - TIG inner wall welding gun suitable for surfacing and welding of inner wall of small-diameter pipe - Google Patents
TIG inner wall welding gun suitable for surfacing and welding of inner wall of small-diameter pipe Download PDFInfo
- Publication number
- CN220388205U CN220388205U CN202320650285.8U CN202320650285U CN220388205U CN 220388205 U CN220388205 U CN 220388205U CN 202320650285 U CN202320650285 U CN 202320650285U CN 220388205 U CN220388205 U CN 220388205U
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- Prior art keywords
- welding
- wall
- welding gun
- gun
- heat
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- 238000003466 welding Methods 0.000 title claims abstract description 106
- 239000000498 cooling water Substances 0.000 claims abstract description 21
- 238000001816 cooling Methods 0.000 claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000000463 material Substances 0.000 claims abstract description 8
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims abstract description 6
- 238000005219 brazing Methods 0.000 claims abstract description 6
- 229910052709 silver Inorganic materials 0.000 claims abstract description 6
- 239000004332 silver Substances 0.000 claims abstract description 6
- 229910052802 copper Inorganic materials 0.000 claims abstract description 5
- 239000010949 copper Substances 0.000 claims abstract description 5
- 229910052721 tungsten Inorganic materials 0.000 claims description 18
- 239000010937 tungsten Substances 0.000 claims description 18
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 17
- 230000008719 thickening Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 7
- 238000007789 sealing Methods 0.000 abstract description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- IADRPEYPEFONML-UHFFFAOYSA-N [Ce].[W] Chemical compound [Ce].[W] IADRPEYPEFONML-UHFFFAOYSA-N 0.000 description 1
- OSJAVLJEMGYHGN-UHFFFAOYSA-N [Zr].[W] Chemical compound [Zr].[W] OSJAVLJEMGYHGN-UHFFFAOYSA-N 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052790 beryllium Inorganic materials 0.000 description 1
- ATBAMAFKBVZNFJ-UHFFFAOYSA-N beryllium atom Chemical compound [Be] ATBAMAFKBVZNFJ-UHFFFAOYSA-N 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- XTYUEDCPRIMJNG-UHFFFAOYSA-N copper zirconium Chemical compound [Cu].[Zr] XTYUEDCPRIMJNG-UHFFFAOYSA-N 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- FAYUQEZUGGXARF-UHFFFAOYSA-N lanthanum tungsten Chemical compound [La].[W] FAYUQEZUGGXARF-UHFFFAOYSA-N 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- WLTSUBTXQJEURO-UHFFFAOYSA-N thorium tungsten Chemical compound [W].[Th] WLTSUBTXQJEURO-UHFFFAOYSA-N 0.000 description 1
- 150000003657 tungsten Chemical class 0.000 description 1
Abstract
The utility model discloses a TIG inner wall welding gun suitable for surfacing and welding of the inner wall of a small-diameter pipe, which comprises a heat-resistant gun body, a circulating water cooling system, a wire feeding structure and a welding gun head, wherein the heat-resistant gun body is made of beryllium-zirconium-copper materials; the tail end of the heat-resistant gun body is connected with a cooling water pipe through silver brazing, and the cooling water pipe is communicated with the circulating water cooling system; one end of the wire feeding structure is arranged below the gun body in parallel, the other section of the wire feeding structure is bent and extends to the lower inner side of the welding gun head, and the wire feeding structure is fixedly connected with the gun body through an insulating heat-resistant connecting block. The high temperature of the welding gun can also maintain the rigidity of the gun body, so that the stability of welding is improved; the sealing grade of the welding gun is improved, and simultaneously, higher system pressure can be resisted; the welding process can ensure that the welding wire can be stably and smoothly sent to the welding point, and the whole TIG inner wall welding gun is still long-strip-shaped, and the welding gun is extremely suitable for surfacing and welding of the inner wall of a small-diameter pipe.
Description
Technical Field
The utility model relates to the technical field of welding tools, in particular to a TIG inner wall welding gun suitable for surfacing and welding of the inner wall of a small-diameter pipe.
Background
TIG welding is tungsten inert gas welding, commonly referred to as non-consumable electrode gas shielded welding. Pure tungsten or activated tungsten (thorium tungsten, cerium tungsten, zirconium tungsten and lanthanum tungsten) is used as inert gas shielded arc welding of an unmelted electrode, and an arc between the tungsten electrode and a workpiece is used as a heat source to melt an added welding wire so as to form a welding line; the tungsten electrode is not melted in the welding process, only plays the role of an electrode, and is simultaneously protected by argon or helium fed by a nozzle of a welding torch, and metal can be additionally added according to requirements.
The internal wall TIG welding mode is limited by the electrode and the welding gun structure for a long time, so that high efficiency is required to use high current in the working process, the welding gun is fast in temperature rise, particularly, the welding gun works for a long time in the high-temperature workpiece, the high-temperature resistance requirement on the welding gun is higher, the internal wall welding is required to work in a narrow space in the workpiece, the volume of the welding gun is only as small as possible, and the heat dissipation problem is more remarkable when the volume of the welding gun is smaller.
Therefore, a TIG inner wall welding gun which is high-temperature resistant and suitable for surfacing and welding of the inner wall of a small-diameter pipe is provided.
Disclosure of Invention
The utility model provides a TIG inner wall welding gun suitable for surfacing and welding of the inner wall of a small-diameter pipe.
The utility model discloses a TIG inner wall welding gun suitable for surfacing and welding of the inner wall of a small-diameter pipe, which comprises a heat-resistant gun body, a circulating water cooling system, a wire feeding structure and a welding gun head, wherein the heat-resistant gun body is made of beryllium-zirconium-copper materials; the tail end of the heat-resistant gun body is connected with a cooling water pipe through silver brazing, and the cooling water pipe is communicated with the circulating water cooling system; one end of the wire feeding structure is arranged below the gun body in parallel, the other section of the wire feeding structure is bent and extends to the lower inner side of the welding gun head, and the wire feeding structure is fixedly connected with the gun body through an insulating heat-resistant connecting block.
The circulating water cooling system comprises a cooling water channel and a circulating water channel, wherein the circulating water channel is arranged around the tungsten electrode of the welding gun head, and the diameter of the cooling water channel is 5mm.
The welding gun head comprises a fixing frame for installing and fixing the tungsten electrode, and fixing holes with the size of 5mm for thickening the tungsten electrode are formed in the fixing frame.
In summary, the technical scheme of the utility model has at least the following beneficial effects:
in the utility model, the heat-resistant gun body is made of a beryllium-zirconium-copper material with good heat resistance and red hardness, and the rigidity of the gun body can be maintained even if the temperature of the welding gun is high in the welding process, so that the welding stability is improved; meanwhile, the silver brazing adopted by the heat-resistant gun body and the cooling water pipe is more reliable than the threaded connection in the prior art, and the sealing grade of the welding gun is improved and higher system pressure can be resisted; and thirdly, the wire feeding structure is arranged below the heat-resistant gun body, so that the welding wire can be stably and smoothly fed to the welding point in the welding process, the thickness of the TIG inner wall welding gun is prevented from being increased, the whole TIG inner wall welding gun is still long, and the welding gun is extremely suitable for surfacing, welding and the like of the inner wall of the small-diameter tube.
Additional features and advantages of the utility model will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic perspective view of a TIG inner wall welding gun of the present utility model;
FIG. 2 is a schematic cross-sectional view of a TIG inner wall welding gun of the present utility model.
Reference numerals illustrate:
1-heat-resistant gun body, 2-cooling water channel, 3-circulating water channel, 4-tungsten electrode, 5-wire feeding structure and 6-insulating heat-resistant connecting block; 7-cooling water pipe.
Detailed Description
The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
As shown in fig. 1 and 2, the utility model discloses a TIG inner wall welding gun suitable for surfacing and welding of the inner wall of a small-diameter pipe, which comprises a heat-resistant gun body 1, a circulating water cooling system, a wire feeding structure 5 and a welding gun head, wherein the heat-resistant gun body 1 is made of beryllium zirconium copper material; the tail end of the heat-resistant gun body 1 is connected with a cooling water pipe 7 through silver brazing, and the cooling water pipe 7 is communicated with the circulating water cooling system; one end of the wire feeding structure 5 is arranged below the gun body in parallel, the other section of the wire feeding structure 5 is bent and extends to the lower inner side of the welding gun head, and the wire feeding structure 5 is fixedly connected with the gun body through an insulating heat-resistant connecting block 6.
In this embodiment, the heat-resistant gun body 1 is made of a beryllium-zirconium-copper material with good heat-resistant red hardness, and can maintain the rigidity of the gun body even if the temperature of the welding gun is high in the welding process, so that the welding stability is improved. Meanwhile, the silver brazing adopted by the heat-resistant gun body 1 and the cooling water pipe 7 is more reliable than the threaded connection in the prior art, the sealing grade of the welding gun is improved, the higher system pressure can be resisted, and the flow speed of cooling water can be increased by improving the water pressure during cooling, so that the cooling efficiency is further improved.
And the wire feeding structure 5 is arranged below the heat-resistant gun body 1, so that the welding wire can be stably and smoothly fed to the welding point in the welding process, the thickness of the TIG inner wall welding gun is prevented from being increased, the whole TIG inner wall welding gun is still long, and the welding gun is extremely suitable for surfacing, welding and the like of the inner wall of the small-diameter tube. Through inspection, through selecting the barrel of different specifications, the welding length of the inner wall of the pipe of this welder can reach 2000mm.
As shown in fig. 2, the wire feeding structure 5 is preferably a wire feeding pipe, and welding wires with different materials can be fed into the wire feeding structure to meet the requirements of welding and overlaying different materials. In particular, during operation, the welding gun head is charged and is one electrode of the welding, which forms a loop with the workpiece to be welded; meanwhile, the welding gun can also heat the welding wire, namely hot wire TIG welding is performed, the welding wire is provided with one pole of a hot wire power supply, a loop is formed between the welding wire and a workpiece to be welded, and then the welding wire is heated by using a resistor; therefore, it is known that the welding and the wire heating have different power parameters, so that the welding gun head and the two poles of the welding wire need to be isolated, and because the position is in a high temperature area, the wire feeding structure 5 is fixed below the heat-resistant gun body 1 by adopting an insulating heat-resistant connecting block 6.
Specifically, the circulating water cooling system comprises a cooling water channel 2 and a circulating water channel 3, wherein the circulating water channel 3 is arranged around a tungsten electrode 4 of the welding gun head, the diameter of the cooling water channel 2 is 5mm, and the common inner diameter in the prior art is 4mm. In this embodiment, compared with the prior art, the internal size of the cooling water channel 2 in the heat-resistant gun body 1 is increased as much as possible, so that the amount of cooling water passing through the heat-resistant gun body is increased, more heat can be taken away to reduce the temperature of the welding gun, the welding gun can be cooled without dead angle through a circulating water cooling system, and the cooling efficiency of the welding gun is further improved. Through inspection, the welding gun can work for a long time in a workpiece at 600 ℃.
Further, the welding gun head comprises a fixing frame for installing and fixing the tungsten electrode 4, the fixing frame is perpendicular to the length direction of the heat-resistant gun body 1, a fixing hole for fixing the tungsten electrode 4 is formed in the fixing frame, the diameter is 5mm, namely, the tungsten electrode 4 is a thickened tungsten electrode, and the diameter of a common tungsten electrode in the prior art is 3.2mm. Compared with the prior art, the welding gun adopts the thickened tungsten electrode 4, and the welding current can reach 500A during welding.
In conclusion, the TIG inner wall welding gun suitable for surfacing and welding of the inner wall of the small-diameter pipe has an exquisite structure, meets the requirement of using the inside of a small space, can work for a long time under the high-current and high-temperature surrounding environment, and is particularly suitable for surfacing and welding of the inner wall of the small-diameter pipe.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the utility model.
Claims (1)
1. The TIG inner wall welding gun suitable for surfacing and welding of the inner wall of the small-diameter pipe comprises a heat-resistant gun body (1), a circulating water cooling system, a wire feeding structure (5) and a welding gun head, and is characterized in that the heat-resistant gun body (1) is made of beryllium-zirconium-copper materials; the tail end of the heat-resistant gun body (1) is connected with a cooling water pipe (7) through silver brazing, and the cooling water pipe (7) is communicated with the circulating water cooling system; one end of the wire feeding structure (5) is arranged below the gun body in parallel, the other section of the wire feeding structure (5) is bent and extends to the lower inner side of the welding gun head, and the wire feeding structure (5) is fixedly connected with the gun body through an insulating heat-resistant connecting block (6); the circulating water cooling system comprises a cooling water channel (2) and a circulating water channel (3), wherein the circulating water channel (3) is arranged around a tungsten electrode (4) of the welding gun head, and the diameter of the cooling water channel (2) is 5mm; the welding gun head comprises a fixing frame for installing and fixing the tungsten electrode (4), and a fixing hole with the size of 5mm for thickening the tungsten electrode is formed in the fixing frame; wherein the fixing frame is perpendicular to the length direction of the heat-resistant gun body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320650285.8U CN220388205U (en) | 2023-03-29 | 2023-03-29 | TIG inner wall welding gun suitable for surfacing and welding of inner wall of small-diameter pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320650285.8U CN220388205U (en) | 2023-03-29 | 2023-03-29 | TIG inner wall welding gun suitable for surfacing and welding of inner wall of small-diameter pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220388205U true CN220388205U (en) | 2024-01-26 |
Family
ID=89602498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320650285.8U Active CN220388205U (en) | 2023-03-29 | 2023-03-29 | TIG inner wall welding gun suitable for surfacing and welding of inner wall of small-diameter pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220388205U (en) |
-
2023
- 2023-03-29 CN CN202320650285.8U patent/CN220388205U/en active Active
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| GR01 | Patent grant |