CN213497097U - TIG welding gun for small space operation - Google Patents
TIG welding gun for small space operation Download PDFInfo
- Publication number
- CN213497097U CN213497097U CN202022325340.5U CN202022325340U CN213497097U CN 213497097 U CN213497097 U CN 213497097U CN 202022325340 U CN202022325340 U CN 202022325340U CN 213497097 U CN213497097 U CN 213497097U
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- China
- Prior art keywords
- welding gun
- gun head
- nozzle
- wall
- conductive nozzle
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- 238000003466 welding Methods 0.000 title claims abstract description 83
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims abstract description 37
- 229910052721 tungsten Inorganic materials 0.000 claims abstract description 37
- 239000010937 tungsten Substances 0.000 claims abstract description 37
- 238000001816 cooling Methods 0.000 claims abstract description 25
- 239000011810 insulating material Substances 0.000 claims abstract description 4
- 230000001681 protective Effects 0.000 claims description 10
- 239000000919 ceramic Substances 0.000 claims description 6
- 239000004809 Teflon Substances 0.000 claims description 5
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 5
- 210000003128 Head Anatomy 0.000 abstract description 26
- 239000007789 gas Substances 0.000 abstract description 21
- 238000009413 insulation Methods 0.000 abstract description 5
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 239000011261 inert gas Substances 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000007906 compression Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Abstract
The utility model discloses a TIG welder for little space operation, including handle, tungsten utmost point clamp, welding gun head and conductive nozzle to still include cooling structure and high temperature resistant insulation protection mouth, the one end plane of conductive nozzle on open and to have centre bore and a plurality of air vent, the centre bore that passes conductive nozzle of the lower extreme of tungsten utmost point clamp, the other one end and the welding gun head inner wall lower extreme of conductive nozzle can be dismantled and be connected, conductive nozzle can press from both sides the tight tungsten utmost point of tungsten utmost point clamp and fix, conductive nozzle outside cover has high temperature resistant insulation protection mouth, high temperature resistant insulation protection mouth can be dismantled with the outer wall lower extreme of welding gun head and be connected, cooling structure is located the welding gun head, surrounds in the gas outlet outer wall, the gap packing between welding gun head inner wall and gas outlet, the cooling structure has heat conduction, insulating material. The welding gun has the advantages of small volume and high water cooling efficiency, and simultaneously still has a good inert gas protection and transmission function, high welding efficiency and good welding stability.
Description
Technical Field
The utility model relates to a welding tool, concretely relates to TIG welder for little space operation.
Background
The existing welding technology for small space has many defects, such as welding of valve type, material of the welding technology, selection of welding process and non-automatic production all become the difficult problems of production of a plurality of enterprises nowadays. Because the welding position is inside the ball valve, the welding space is very narrow, and need continuously accomplish the welding, requires welder to have the heat input of high strength again and guarantees the penetration. Therefore, the size of the gun body must be reduced to improve the internal structure and the cooling system thereof, so as to solve the space difficulty and ensure that the heat accumulation for a long time during welding can not cause damage to the gun body.
Disclosure of Invention
Based on above weak point, the utility model provides a TIG welder for little space operation solves the problem of the welding difficulty on the little space operation.
The utility model discloses the technical scheme who adopts as follows: a TIG welding gun for small space operation comprises a handle, a tungsten electrode clamp, a welding gun head and a conductive nozzle, wherein the welding gun head is arranged at one end of the handle, a protective gas pipeline is arranged inside the welding gun head and the handle, a gas outlet of the protective gas pipeline is arranged inside the welding gun head, the upper end of the tungsten electrode clamp is inserted into the gas outlet and fixedly connected with the gas outlet, the tungsten electrode is inserted into the tungsten electrode clamp, the welding gun further comprises a cooling structure and a high-temperature-resistant insulating protection nozzle, a center hole and a plurality of vent holes are formed in the plane of one end of the conductive nozzle, the lower end of the tungsten electrode clamp penetrates through the center hole of the conductive nozzle, the other end of the conductive nozzle is detachably connected with the lower end of the inner wall of the welding gun head, the conductive nozzle can clamp and fix the tungsten electrode, the high-temperature-resistant insulating protection nozzle is sleeved outside the conductive nozzle and detachably connected with the lower end of the outer wall of, The welding gun head is arranged on the outer wall of the gas outlet in a surrounding mode, a cooling pipeline is arranged inside the holding handle and communicated with a cooling structure, and heat conducting and insulating materials are filled in gaps among the inner wall of the welding gun head, the gas outlet and the cooling structure.
The utility model discloses still have following technical characteristic:
1. the outer wall of the other end of the conductive nozzle is in threaded connection with the lower end of the inner wall of the welding gun head, the lower end of the tungsten electrode clamp is conical and provided with a plurality of gaps, and the conductive nozzle can clamp and fix the other end of the tungsten electrode clamp with the tungsten electrode through the matching of threads.
2. The inner wall of one end of the high-temperature-resistant insulating protection nozzle is in threaded connection with the lower end of the outer wall of the welding gun head.
3. The handle and/or the welding gun head are made of teflon.
4. The high-temperature resistant insulating protection nozzle is a ceramic protection nozzle.
The utility model has the advantages of as follows: the small-volume high-water-cooling-efficiency TIG welding gun has a good inert gas protection transmission function while having small volume and high water cooling efficiency, the handle is made of high-temperature-resistant polymer materials, the working stability of the small-space TIG welding gun under a high-temperature condition is improved on the basis of insulation and heat insulation, electric arcs are stable in the welding process, the forming of a welding seam melting pool is greatly improved, the stiffness and the compression effect of the electric arcs are improved, the welding gun has the advantages of high welding efficiency and good welding stability, and the welding effect of double-side forming continuous welding of single-side welding of a non-open groove of 10mm can be realized.
Drawings
Fig. 1 is a sectional view of a TIG welding gun for small space operation of example 1;
FIG. 2 is a schematic perspective view of a contact tip according to example 1;
fig. 3 is a schematic view of the lower end structure of the tungsten electrode clip of example 1.
Detailed Description
The invention is further described by way of example in the following description with reference to the accompanying drawings:
example 1
As shown in fig. 1-3, a TIG welding gun for small space operation includes a handle 1, a tungsten electrode 2, a tungsten electrode clamp 10, a welding gun head 3 and a conductive nozzle 6, the welding gun head 3 is located at one end of the handle 1, a protective gas pipeline 4 is arranged inside the welding gun head 3 and the handle, a gas outlet 5 of the protective gas pipeline 4 is located inside the welding gun head 3, the upper end of the tungsten electrode clamp 10 is inserted into the gas outlet 5 and fixedly connected with the gas outlet 5, the tungsten electrode 2 is inserted into the tungsten electrode clamp 10, the embodiment further includes a cooling structure 7 and a high temperature resistant insulating protective nozzle 8, the cooling structure 7 is located inside the welding gun head 3 and surrounds the outer wall of the gas outlet 5; the plane of one end of the conductive nozzle 6 is provided with a central hole 12 and 4 vent holes 11, the vent holes 11 are used for protective gas to pass through, the lower end of the tungsten electrode clamp 10 is conical and is provided with 3 gaps, so that the lower end of the tungsten electrode clamp 10 is in a three-petal separated shape, the lower end of the tungsten electrode clamp 10 penetrates through the central hole 12 of the conductive nozzle 6, the outer wall of the other end of the conductive nozzle 6 is in threaded connection with the lower end of the inner wall of the welding gun head 3, the conductive nozzle 6 moves towards the upper part of the welding gun head through the matching of threads, the conductive nozzle 6 is contacted with the lower end of the tungsten electrode clamp 10 and can contract the lower end of the tungsten electrode clamp 10 to clamp and fix the tungsten electrode 2, the conductive nozzle 6 is sleeved with a high-temperature-resistant insulating protection nozzle 8, the inner wall of the high-temperature-resistant insulating protection nozzle 8 is in threaded connection with the lower end of the outer wall of the welding gun head 3, the phenomena of sparking, avoid TIG welder to damage, holding 1 inside and being provided with cooling tube 9, cooling tube 9 and cooling structure 7 intercommunication, the gap between 3 inner walls of welding gun head and gas outlet 5, cooling structure 7 is filled with heat conduction, insulating material. The total length of the TIG welding gun is 240 mm, the diameter of the gun head is 28 mm, and the height is 48 mm. The grip is made of a teflon material, the teflon grip has the characteristics of acid resistance, alkali resistance and high temperature resistance, and the friction coefficient of the teflon grip is extremely low so as to play a role in insulating and protecting the welding gun head. The high-temperature resistant insulating protection nozzle is a ceramic protection nozzle. Contact tip 6 is made of H62 brass. In this embodiment, consider to adopt minor diameter ceramic protection mouth when designing muzzle size, can realize carrying out good gas protection effect to F316 stainless steel ball valve in the welding process, guarantee also that the welding process is even stable can not appear scraping valve inner wall or high temperature and long-time heavy current heat output in the welding process of being convenient for is carried out to the fracture that appears influences the condition of arc height. The welding gun is provided with a supporting structure, so that the stable wire filling of the wire feeding mechanism is ensured, and when cooling water in a built-in cooling pipeline flows through the water-cooling shell, the tungsten electrode can be directly cooled. Because the cooling effect is better, when the TIG welding gun is electrified with the current of more than 300A, the tungsten electrode 2 is not easy to burn, and the cathode spot can be effectively reduced. Under the conditions of high current and good cooling of the tungsten electrode 2, the stiffness and the compression effect of the electric arc can be improved, and the welding efficiency and the welding stability are improved. Can realize the double-sided molding of the single-sided welding of 10mm non-opening, and improve the welding efficiency. Since the amount of heat generated during welding is high when a current higher than 300A is applied to the TIG welding gun, the gas shield is a metal shield in order to improve the temperature resistance of the gas shield 1. Therefore, the cracking phenomenon of the ceramic protective cover adopted in the past when the ceramic protective cover runs at high temperature for a long time can be avoided, and the welding quality is improved by improving the gas protection effect in the welding process.
Claims (5)
1. The utility model provides a TIG welder for operation in little space, includes handle, tungsten utmost point clamp, welding gun head and conductive nozzle, and the welding gun head is located the one end of handle, and the inside protective gas pipeline that is provided with of welding gun head and handle, protective gas pipeline's gas outlet are located inside the welding gun head, and the upper end that the tungsten utmost point pressed from both sides inserts in the gas outlet rather than fixed connection, and the tungsten utmost point inserts in the tungsten utmost point presss from both sides its characterized in that: the welding gun further comprises a cooling structure and a high-temperature-resistant insulating protection nozzle, a center hole and a plurality of vent holes are formed in the plane of one end of the conductive nozzle, the lower end of a tungsten electrode clamp penetrates through the center hole of the conductive nozzle, the other end of the conductive nozzle is detachably connected with the lower end of the inner wall of the welding gun head, the conductive nozzle can clamp and fix the tungsten electrode clamp, the high-temperature-resistant insulating protection nozzle is sleeved outside the conductive nozzle, the high-temperature-resistant insulating protection nozzle is detachably connected with the lower end of the outer wall of the welding gun head, the cooling structure is located in the welding gun head and surrounds the outer wall of the gas outlet, a cooling pipeline is arranged inside the welding gun head, the cooling pipeline is communicated with the cooling structure, and heat conduction and insulating materials are filled.
2. A TIG welding gun for small space operation according to claim 1, characterized in that: the outer wall of the other end of the conductive nozzle is in threaded connection with the lower end of the inner wall of the welding gun head, the lower end of the tungsten electrode clamp is conical and provided with a plurality of gaps, and the conductive nozzle can clamp and fix the other end of the tungsten electrode clamp with the tungsten electrode through the matching of threads.
3. A TIG welding gun for small space operation according to claim 1, characterized in that: the inner wall of one end of the high-temperature-resistant insulating protection nozzle is in threaded connection with the lower end of the outer wall of the welding gun head.
4. A TIG welding gun for small space operation according to any one of claims 1-3, characterized in that: the handle is made of teflon.
5. A TIG welding gun for small space operation according to any one of claims 1-3, characterized in that: the high-temperature resistant insulating protection nozzle is a ceramic protection nozzle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022325340.5U CN213497097U (en) | 2020-10-19 | 2020-10-19 | TIG welding gun for small space operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022325340.5U CN213497097U (en) | 2020-10-19 | 2020-10-19 | TIG welding gun for small space operation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213497097U true CN213497097U (en) | 2021-06-22 |
Family
ID=76400213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022325340.5U Active CN213497097U (en) | 2020-10-19 | 2020-10-19 | TIG welding gun for small space operation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213497097U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113695718A (en) * | 2021-08-31 | 2021-11-26 | 华南理工大学 | Rotary TIG (tungsten inert gas) welding gun for welding and repairing inner wall of pipe with extremely small diameter |
| CN113814532A (en) * | 2021-09-27 | 2021-12-21 | 华南理工大学 | Rotary tungsten electrode TIG (tungsten inert gas) welding system for welding inner wall of pipe fitting with extremely small diameter |
-
2020
- 2020-10-19 CN CN202022325340.5U patent/CN213497097U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113695718A (en) * | 2021-08-31 | 2021-11-26 | 华南理工大学 | Rotary TIG (tungsten inert gas) welding gun for welding and repairing inner wall of pipe with extremely small diameter |
| CN113695718B (en) * | 2021-08-31 | 2022-07-26 | 华南理工大学 | Be used for welding of minimum diameter pipe inner wall and prosthetic rotatory TIG welder |
| CN113814532A (en) * | 2021-09-27 | 2021-12-21 | 华南理工大学 | Rotary tungsten electrode TIG (tungsten inert gas) welding system for welding inner wall of pipe fitting with extremely small diameter |
| CN113814532B (en) * | 2021-09-27 | 2022-07-26 | 华南理工大学 | Rotary tungsten electrode TIG (tungsten inert gas) welding system for welding inner wall of pipe fitting with extremely small diameter |
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