CN219520797U - Argon arc welding gun - Google Patents
Argon arc welding gun Download PDFInfo
- Publication number
- CN219520797U CN219520797U CN202320227627.5U CN202320227627U CN219520797U CN 219520797 U CN219520797 U CN 219520797U CN 202320227627 U CN202320227627 U CN 202320227627U CN 219520797 U CN219520797 U CN 219520797U
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- China
- Prior art keywords
- cooling
- welding gun
- cavity
- arc welding
- argon arc
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000003466 welding Methods 0.000 title claims abstract description 58
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 title claims abstract description 54
- 229910052786 argon Inorganic materials 0.000 title claims abstract description 27
- 238000001816 cooling Methods 0.000 claims abstract description 107
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims abstract description 51
- 229910052721 tungsten Inorganic materials 0.000 claims abstract description 51
- 239000010937 tungsten Substances 0.000 claims abstract description 51
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 27
- 238000007789 sealing Methods 0.000 claims abstract description 23
- 239000000110 cooling liquid Substances 0.000 claims description 30
- 239000007789 gas Substances 0.000 claims description 20
- 239000000919 ceramic Substances 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 238000004891 communication Methods 0.000 claims description 8
- 238000009434 installation Methods 0.000 claims description 8
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 239000010949 copper Substances 0.000 claims description 5
- 230000001681 protective effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 5
- 239000000498 cooling water Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 239000012212 insulator Substances 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 238000002679 ablation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010891 electric arc 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
- 239000011261 inert gas Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Landscapes
- Arc Welding In General (AREA)
Abstract
The utility model relates to the technical field of arc welding equipment, in particular to an argon arc welding gun, which comprises a welding gun body and a tungsten electrode arranged on the welding gun body, wherein the end part of the welding gun body is provided with a gun head body, a cooling channel and an air channel are arranged in the welding gun body, a cooling cylinder is arranged in the gun body, a cooling cavity is arranged in the cooling cylinder, the cooling channel is communicated with the cooling cavity, the air channel is communicated with the gun head body, and one end of the tungsten electrode is arranged in the cooling cavity; the cooling cylinder is characterized in that a shaft neck is arranged at the end part of the cooling cylinder, a mounting taper hole and a mounting threaded hole are formed in the position, located at the shaft neck, of the cooling cylinder, the mounting taper hole and the mounting threaded hole penetrate through the wall of the cooling cylinder, a sealing copper ring is connected in an internal fit mode, a locking pressure head is connected in the threaded hole in a threaded mode, the locking pressure head is abutted to the sealing copper ring, the sealing copper ring is abutted to the mounting taper hole, and one end of the tungsten electrode penetrates through the locking pressure head and the sealing copper ring and extends into the cooling cavity.
Description
Technical Field
The utility model relates to the technical field of arc welding equipment, in particular to an argon arc welding gun.
Background
The argon arc welding gun is characterized in that inert gas (argon and helium) is used as shielding gas, a high-melting-point tungsten rod is used as an electrode, and electric arc is ignited by the tungsten rod to perform welding; because the chuck is too small in size and cannot accommodate enough cooling water, the cooling water is required to be supplied uninterruptedly in the use process, but in the actual operation process, an operator can easily close the cooling water supply system and the power supply system at the same time, the tungsten electrode rod is still in a high-temperature state, but the cooling water is consumed completely, so that the tungsten electrode rod is ablated, and the machining efficiency and the service life are affected.
In order to solve the technical problems, chinese patent CN114147326A discloses a tungsten electrode argon arc welding gun, which comprises an upper gun body, an intermediate insulator and a lower gun body, wherein the upper gun body, the intermediate insulator and the lower gun body are arranged up, down and installed into a complete welding gun, the middle part of the lower gun body is fixedly provided with a chuck, and a liquid cooling cavity is arranged in the chuck. The water cooling device for the cooling chuck is used for directly acting on the tungsten electrode rod, and can effectively prevent the tungsten electrode rod from being ablated compared with the original indirect action, but the liquid cooling cavity of the device is too small in size, power supply is stopped when water is stopped, and residual high temperature on the tungsten electrode rod is enough to consume cooling liquid in the liquid cooling cavity, so that the tungsten electrode rod cannot be prevented from being ablated.
Therefore, the argon arc welding gun is provided, the ablation of high temperature to the tungsten electrode rod is reduced, the service life and the processing efficiency of the welding gun are improved, and the argon arc welding gun is required by a person skilled in the art.
Disclosure of Invention
The utility model aims to provide an argon arc welding gun, which solves the technical problems that in the prior art, the cooling of the welding gun is usually indirect cooling, the intermittent supply is easy, the tungsten electrode is ablated, and the using effect of the welding gun is affected.
The technical scheme adopted for solving the technical problems is as follows: the argon arc welding gun comprises a welding gun body and a tungsten electrode arranged on the welding gun body, wherein the end part of the welding gun body is provided with a gun head body, a cooling channel and an air channel are arranged in the welding gun body, a cooling cylinder is arranged in the gun body, a cooling cavity is arranged in the cooling cylinder, the cooling channel is communicated with the cooling cavity, the air channel is communicated with the gun head body, and one end of the tungsten electrode is arranged in the cooling cavity; the cooling cylinder is characterized in that a shaft neck is arranged at the end part of the cooling cylinder, a mounting taper hole and a mounting threaded hole are formed in the position, located at the shaft neck, of the cooling cylinder, the mounting taper hole and the mounting threaded hole penetrate through the wall of the cooling cylinder, a sealing copper ring is connected in an internal fit mode, a locking pressure head is connected in the threaded hole in a threaded mode, the locking pressure head is abutted to the sealing copper ring, the sealing copper ring is abutted to the mounting taper hole, and one end of the tungsten electrode penetrates through the locking pressure head and the sealing copper ring and extends into the cooling cavity.
Further, the gun head body is of a hollow cylindrical structure with one surface open, and one end, far away from the shaft neck, of the cooling cylinder is connected in the gun head body in a plugging manner and is abutted against the top wall of the gun head body.
Further, a fixing frame is connected to the opening surface of the gun head body in a threaded mode, the fixing frame is located outside the gun head body, one end of the fixing frame is abutted to the shaft shoulder of the cooling cylinder, and the other end of the fixing frame is connected with a ceramic nozzle in a threaded mode.
Further, a gas cavity is formed between the outer wall of the shaft neck and the inner wall of the fixing frame on the cooling cylinder, and the air passage penetrates through the wall body of the fixing frame and is communicated with the gas cavity.
Further, the outer wall of the cooling cylinder is matched with the inner wall of the gun head body; the outer wall of the shaft neck is matched with the inner wall of the fixing frame.
Further, a working cavity is formed in the inner wall of the ceramic nozzle, the working cavity is communicated with the air passage, and the end part of the tungsten electrode penetrates through the working cavity and extends to the outside of the ceramic nozzle.
Further, a communication hole is arranged on the end face of the shaft neck, and the communication hole is communicated with the gas cavity and the working cavity.
Further, a first matching hole is formed in the sealing copper ring, a second matching hole is formed in the locking pressure head, and the tungsten electrode is connected in the first matching hole and the second matching hole in a matching mode.
Further, the cooling channel is communicated with a cooling liquid, and the air passage is communicated with a protective gas.
Further, the cooling liquid is water, and the shielding gas is argon.
The beneficial effects of the utility model are as follows:
according to the utility model, the cooling liquid is introduced into the cooling cavity from the cooling channel, so that the cooling liquid is in direct contact with the tungsten electrode to cool the tungsten electrode, and the tungsten electrode is effectively prevented from being ablated; meanwhile, the cooling cavity is directly communicated with the cooling channel, and the cooling channel is communicated with cooling liquid, so that the capacity of the cooling cavity is increased, when the welding gun is closed, the cooling liquid stops being supplied, the cooling liquid in the cooling channel still flows into the cooling cavity, the supply of the cooling liquid is further ensured, the tungsten electrode is prevented from being ablated by residual heat, and the service life of the cooling cavity is prolonged.
Drawings
Fig. 1 is a front cross-sectional view of an argon arc welding gun of the present utility model.
Fig. 2 is an exploded schematic view of fig. 1.
Fig. 3 is an enlarged schematic view of the portion a in fig. 1.
Fig. 4 is an enlarged schematic view of the portion B in fig. 2.
The components in the drawings are marked as follows: 10. a gun head body; 11. a cooling cylinder; 111. cooling the cavity; 112. a journal; 113. a communication hole; 114. installing a taper hole; 115. installing a threaded hole; 12. sealing the copper ring; 13. locking the pressure head; 14. a ceramic nozzle; 15. a gas cavity; 16. a fixing frame; 17. a working cavity; 20. a welding gun body; 21. a cooling channel; 22. an airway; 30. a tungsten electrode; 31. a cooling liquid; 32. and (3) protecting gas.
Description of the embodiments
The present utility model will now be described in detail with reference to the accompanying drawings. The figure is a simplified schematic diagram illustrating the basic structure of the utility model only by way of illustration, and therefore it shows only the constitution related to the utility model.
Referring to fig. 1 and 3, the utility model provides an argon arc welding gun, which comprises a welding gun body 20 and a tungsten electrode 30 arranged on the welding gun body 20, wherein the end part of the welding gun body 20 is provided with a gun head body 10, a cooling channel 21 and an air channel 22 are arranged in the welding gun body 20, the gun head body 10 is of a hollow cylindrical structure with one surface open, a cooling cylinder 11 is arranged in the gun body 10, a cooling cavity 111 is arranged in the cooling cylinder 11, the cooling channel 21 is communicated with the cooling cavity 111, the air channel 22 is communicated with the gun head body 10, and one end of the tungsten electrode 30 is arranged in the cooling cavity 111.
In this embodiment, the cooling channel 21 is connected to a cooling liquid 31, and the air passage 22 is connected to a shielding gas 32. Preferably, the cooling liquid 31 includes, but is not limited to, water, and the shielding gas 32 includes, but is not limited to, argon. When in use, the protective gas 32 is introduced into the gun head body 10 from the air passage 22 to isolate air outside the welding area, thereby ensuring the working stability of the tungsten electrode 30; introducing cooling liquid 31 into the cooling cavity 111 from the cooling channel 21, so that the cooling liquid 31 is in direct contact with the tungsten electrode 30 to cool the tungsten electrode 30, and effectively preventing the tungsten electrode 30 from being ablated; meanwhile, the cooling cavity 111 is directly communicated with the cooling channel 21, and the cooling channel 21 is communicated with the cooling liquid 30, so that the capacity of the cooling cavity 111 is increased, when the welding gun is closed, the cooling liquid 30 stops being supplied, the cooling liquid 30 in the cooling channel 21 still flows into the cooling cavity 111, the supply of the cooling liquid 30 is further ensured, the tungsten electrode 30 is prevented from being ablated by residual heat, and the service life of the welding gun is prolonged.
As can be appreciated, the gun body 20 is further provided with a water outlet channel (not shown), the water outlet channel is communicated with the cooling cavity 111, and when the welding gun works, the cooling liquid 30 is introduced into the cooling cavity 111 from the cooling channel 21 and then discharged from the water outlet channel, so as to ensure the cooling effect of the cooling liquid 30; when the welding gun is closed, the water outlet channel is also closed, so that the cooling liquid 30 can be supplied sufficiently.
Further, the end of the cooling cylinder 11 is provided with a shaft neck 112, one end of the cooling cylinder 11 far away from the shaft neck 112 is connected in the gun head body 10 in a plugging manner and is abutted to the top wall of the gun head body 10, a fixing frame 16 is connected to the opening surface of the gun head body 10 in a threaded manner, the fixing frame 16 is of a cylindrical structure with two open ends, the fixing frame 16 is partially positioned outside the gun head body 10, one end of the fixing frame 16 is abutted to the shaft shoulder of the cooling cylinder 11, the other end of the fixing frame 16 is connected with a ceramic nozzle 14 in a threaded manner, a working cavity 17 is formed in the inner wall of the ceramic nozzle 14, and the working cavity 17 is communicated with the air passage 22.
Specifically, the outer wall of the journal 112 mates with the inner wall of the mount 16. The cooling cylinder 11 is provided with a gas cavity 15 between the outer wall of the shaft neck 112 and the inner wall of the fixing frame 16, and the air passage 22 penetrates through the wall of the fixing frame 16 and is communicated with the gas cavity 15. The end surface of the journal 112 is provided with a communication hole 113, and the communication hole 113 communicates the gas cavity 15 and the working cavity 17.
When in use, the cooling cylinder 11 is installed in the gun head body 10, and then the fixing frame 16 is connected into the gun head body 10 in a threaded manner, so that the end part of the fixing frame 16 is abutted against and tightly presses the cooling cylinder 11, the use stability is ensured, and the disassembly and the replacement are convenient; the ceramic nozzle 14 is connected to the fixing frame 16 in a threaded manner, and the shielding gas 32 is sprayed out from the communication hole 113 and is converged on the welding area under the guidance of the ceramic nozzle 14, so that the air is effectively isolated, and the stability of the utility model in the working process is improved.
Preferably, the outer wall of the cooling cylinder 11 is matched with the inner wall of the gun head body 10.
Referring to fig. 2, 3 and 4, the cooling cylinder 11 is provided with a mounting taper hole 114 and a mounting threaded hole 115 at the journal 112, the mounting taper hole 114 and the mounting threaded hole 115 penetrate through the wall of the cooling cylinder 11, the mounting taper hole 114 is internally connected with a sealing copper ring 12 in a matching manner, the mounting threaded hole 115 is internally connected with a locking pressure head 13 in a threaded manner, the locking pressure head 13 is abutted against the sealing copper ring 12, the sealing copper ring 12 is abutted against the mounting taper hole 114, one end of the tungsten electrode 30 penetrates through the locking pressure head 13 and the sealing copper ring 12 and extends into the cooling cavity 111, and the other end of the tungsten electrode 30 penetrates through the working cavity 17 and extends to the outside of the ceramic nozzle 14.
Further, the end of the sealing copper ring 12 is provided with a conical surface, and the conical degree of the conical surface on the sealing copper ring 12 is consistent with the conical degree of the mounting conical hole 114; when the sealing copper ring is used, the conical surface of the sealing copper ring 12 is abutted into the mounting conical hole 114, so that the cooling cavity 111 is sealed, the cooling liquid 31 is prevented from leaking, meanwhile, the sealing copper ring 12 adopts oxygen-free copper, the good conductive effect is achieved, the current density can be greatly improved, the arc stiffness is improved, and the welding effect of a welding gun is effectively improved.
Further, the sealing copper ring 12 is provided with a first matching hole 121, the locking pressure head 13 is provided with a second matching hole 131, the tungsten electrode 30 is connected in the first matching hole 121 and the second matching hole 131 in a matching way, and preferably, a gap between the tungsten electrode 30 and the first matching hole 121 is 0.03-0.05 mm. The utility model improves the sealing effect by reducing the clearance, reduces the mounting parts and reduces the production cost.
In this embodiment, a chuck (not shown) is disposed on the locking ram 13 at the second mating hole 131, so as to clamp the tungsten electrode 30, and when the locking ram 13 is screwed into the mounting threaded hole 115, the chuck is tightened, so that the tungsten electrode 30 is not dropped off during use, and the use stability is improved.
In another embodiment, the locking ram 13 is provided with a tungsten needle clip at the second mating hole 131, and the tungsten needle clip is one of the conventional clamping heads in the market, so as to clamp and fix the tungsten electrode 30.
The specific operation mode of the utility model is as follows: the cooling cylinder 11 is installed in the gun head body 10, the fixing frame 16 is connected into the gun head body 10 in a threaded mode, the end portion of the fixing frame 16 abuts against and presses the cooling cylinder 11, the tungsten electrode 30 passes through the sealing copper ring 12 and the locking pressure head 13 and is inserted into the cooling cavity 111, the locking pressure head 13 is connected onto the cooling cylinder 11 in a threaded mode, and finally the ceramic nozzle 14 is sleeved outside the tungsten electrode 30 and is connected onto the fixing frame 16 in a threaded mode, and therefore installation is completed.
According to the utility model, the cooling liquid 31 is introduced into the cooling cavity 111 from the cooling channel 21, so that the cooling liquid 31 is in direct contact with the tungsten electrode 30 to cool the tungsten electrode 30, and the tungsten electrode 30 is effectively prevented from being ablated; meanwhile, the cooling cavity 111 is directly communicated with the cooling channel 21, and the cooling channel 21 is communicated with the cooling liquid 30, so that the capacity of the cooling cavity 111 is increased, when the welding gun is closed, the cooling liquid 30 stops being supplied, the cooling liquid 30 in the cooling channel 21 still flows into the cooling cavity 111, the supply of the cooling liquid 30 is further ensured, the tungsten electrode 30 is prevented from being ablated by residual heat, and the service life of the welding gun is prolonged.
It will be understood that the utility model has been described in terms of several embodiments, and that various changes and equivalents may be made to these features and embodiments by those skilled in the art without departing from the spirit and scope of the utility model. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the utility model without departing from the essential scope thereof. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.
Claims (10)
1. The argon arc welding gun comprises a welding gun body (20) and a tungsten electrode (30) arranged on the welding gun body (20), wherein the end part of the welding gun body (20) is provided with a gun head body (10), a cooling channel (21) and an air channel (22) are arranged in the welding gun body (20), and the argon arc welding gun is characterized in that a cooling cylinder (11) is arranged in the gun head body (10), a cooling cavity (111) is arranged in the cooling cylinder (11), the cooling channel (21) is communicated with the cooling cavity (111), the air channel (22) is communicated with the gun head body (10), and one end of the tungsten electrode (30) is arranged in the cooling cavity (111);
the cooling cylinder (11) tip is equipped with journal (112), is located journal (112) department on cooling cylinder (11) and is equipped with installation taper hole (114) and installation screw hole (115), and installation taper hole (114) and installation screw hole (115) run through cooling cylinder (11) wall, installation taper hole (114) internal fit is connected with sealed copper circle (12), installation screw hole (115) internal thread is connected with locking pressure head (13), locking pressure head (13) butt sealed copper circle (12), sealed copper circle (12) butt installation taper hole (114), tungsten utmost point (30) one end passes locking pressure head (13) and sealed copper circle (12) and extends into cooling cavity (111).
2. Argon arc welding gun according to claim 1, characterized in that the gun head body (10) is of a hollow cylindrical structure with one surface open, and one end of the cooling cylinder (11) far away from the shaft neck (112) is connected in the gun head body (10) in a plugging manner and is abutted against the top wall of the gun head body (10).
3. Argon arc welding gun according to claim 2, characterized in that a fixing frame (16) is connected to the opening surface of the gun head body (10) in a threaded manner, part of the fixing frame (16) is positioned outside the gun head body (10), one end of the fixing frame (16) is abutted against the shaft shoulder of the cooling cylinder (11), and the other end of the fixing frame (16) is connected with a ceramic nozzle (14) in a threaded manner.
4. An argon arc welding gun according to claim 3, wherein a gas cavity (15) is formed on the cooling cylinder (11) between the outer wall of the shaft neck (112) and the inner wall of the fixing frame (16), and the air passage (22) penetrates through the wall of the fixing frame (16) and is communicated with the gas cavity (15).
5. Argon arc welding gun according to claim 4, characterized in that the outer wall of the cooling cylinder (11) is matched with the inner wall of the gun head body (10); the outer wall of the shaft neck (112) is matched with the inner wall of the fixing frame (16).
6. An argon arc welding gun according to claim 3, wherein a working cavity (17) is formed in the inner wall of the ceramic nozzle (14), the working cavity (17) is communicated with the air passage (22), and the end part of the tungsten electrode (30) penetrates through the working cavity (17) and extends to the outside of the ceramic nozzle (14).
7. Argon arc welding gun according to claim 6, characterized in that a communication hole (113) is arranged on the end face of the shaft neck (112), and the communication hole (113) is communicated with the gas cavity (15) and the working cavity (17).
8. Argon arc welding gun according to claim 1, characterized in that the sealing copper ring (12) is provided with a first matching hole (121), the locking pressure head (13) is provided with a second matching hole (131), and the tungsten electrode (30) is connected in the first matching hole (121) and the second matching hole (131) in a matching way.
9. Argon arc welding gun according to claim 1, characterized in that the cooling channel (21) is connected with a cooling liquid (31) and the air channel (22) is connected with a protective gas (32).
10. Argon arc welding gun according to claim 9, characterized in that the cooling liquid (31) is water and the shielding gas (32) is argon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320227627.5U CN219520797U (en) | 2023-02-16 | 2023-02-16 | Argon arc welding gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320227627.5U CN219520797U (en) | 2023-02-16 | 2023-02-16 | Argon arc welding gun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219520797U true CN219520797U (en) | 2023-08-15 |
Family
ID=87629888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320227627.5U Active CN219520797U (en) | 2023-02-16 | 2023-02-16 | Argon arc welding gun |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219520797U (en) |
-
2023
- 2023-02-16 CN CN202320227627.5U patent/CN219520797U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A type of argon arc welding gun Granted publication date: 20230815 Pledgee: China Construction Bank Corporation Changzhou Wujin sub branch Pledgor: CHANGZHOU HUARUI WELDING & CUTTING MACHINERY CO.,LTD. Registration number: Y2024980005968 |