CN211072179U - Argon arc welding gun with high-fusion-depth lock hole - Google Patents
Argon arc welding gun with high-fusion-depth lock hole Download PDFInfo
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- CN211072179U CN211072179U CN201921714276.0U CN201921714276U CN211072179U CN 211072179 U CN211072179 U CN 211072179U CN 201921714276 U CN201921714276 U CN 201921714276U CN 211072179 U CN211072179 U CN 211072179U
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- tungsten electrode
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Abstract
The utility model discloses a high melt depth lockhole argon arc welds welder, include: the welding gun comprises a welding gun body, wherein a welding gun front seat and a welding gun rear seat are respectively arranged at two ends of the welding gun body; the welder front stall connects the tungsten utmost point mounting, the tungsten utmost point mounting includes: the tungsten electrode wire sleeve is provided with a through hole in the middle for accommodating a tungsten electrode, and the corresponding positions of the two opposite side surfaces of the tungsten electrode wire sleeve are respectively provided with a jackscrew screw hole communicated with the through hole. The utility model discloses the tungsten utmost point is pressed from both sides through the tungsten utmost point and is fixed locking with tungsten utmost point locking wire sleeve, and the tungsten utmost point is big with tungsten utmost point clamp area of contact, and the welder structure has the biggest cooling effect to the tungsten utmost point, can remain stable lockhole welding for a long time, can guarantee that the welding seam takes shape unanimously.
Description
Technical Field
The utility model relates to a water-cooling welder technical field especially relates to a high fused depth lockhole argon arc welds welder.
Background
The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.
At present, the following welding processes are mainly used for the metal materials with the thickness of 3mm to 12 mm:
(1) plasma welding process and laser welding process. The equipment price is expensive, the equipment maintenance cost is high, the workpiece assembly requirement is strict, and the operation is complex.
(2) And (4) submerged arc welding. The welding heat input is large, the quality of a welding seam is poorer than that of a tungsten argon arc welding process, and back gouging is needed after welding, so that time and labor are wasted.
(3) The common argon tungsten arc welding (TIG) welding process, also known as inert gas shielded welding, is a relatively common welding process and is mainly used for welding carbon steel, stainless steel and nonferrous metal materials.
The tungsten electrode clamp of the common argon arc welding gun only performs point contact cooling on the tungsten electrode clamp, so that the cooling area of the tungsten electrode is small, the cooling effect is poor, the temperature of the tungsten electrode is high, meanwhile, the tungsten electrode is thin (generally below 3 mm), the tungsten electrode is emitted in a heat mode, the higher the temperature is, the larger the emitting area is, and accordingly the arc climbing causes divergence.
Therefore, although the common argon tungsten-arc welding has good welding quality, the welding arc is seriously dispersed, the energy is not concentrated, the welding efficiency is low, and the thickness of a welding material is less than 3 mm; and the one-time penetration welding can not be realized for the metal plates with the thickness of more than 3 mm.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides a high melt depth lockhole argon arc welds welder carries out the face contact through tungsten utmost point clamp and tungsten utmost point, can reach the biggest cooling effect. When 4mm to 16mm medium plate materials are welded, the welding current can keep stable keyhole welding for a long time in the range of 300A to 1000A.
In some embodiments, the following technical scheme is adopted:
a high-depth keyhole argon arc welding gun comprises: the welding gun comprises a welding gun body, wherein a welding gun front seat and a welding gun rear seat are respectively arranged at two ends of the welding gun body; the welder front stall connects the tungsten utmost point mounting, the tungsten utmost point mounting includes: the tungsten electrode wire sleeve is provided with a through hole in the middle for accommodating a tungsten electrode, and the corresponding positions of the two opposite side surfaces of the tungsten electrode wire sleeve are respectively provided with a jackscrew screw hole communicated with the through hole.
The tungsten electrode is connected with the welding gun front seat through the tungsten electrode wire sleeve, and the tungsten electrode is in close contact with the tungsten electrode wire sleeve, so that the cooling area of the tungsten electrode can be increased, and the best cooling effect of the tungsten electrode can be achieved.
Furthermore, one end of the tungsten electrode wire sleeve is of a cylindrical structure with external threads, and the other end of the tungsten electrode wire sleeve is of a circular truncated cone-shaped structure with the same cone angle as the tungsten electrode.
Further, still include: and the jackscrew is matched with the jackscrew screw hole and can fix the tungsten electrode after being screwed into the jackscrew hole. The tungsten electrode can be clamped and fixed by the jackscrew, the length of the exposed part of the tungsten electrode can be adjusted, the tungsten electrode in the tungsten electrode fixing piece can be exposed for use by adjustment, and the utilization rate of the tungsten electrode is improved.
Further, still include: the welding gun comprises a water inlet pipeline connected with a water inlet and a water outlet pipeline connected with a water outlet, wherein the water inlet pipeline and the water outlet pipeline are communicated through a cooling cavity arranged inside a welding gun, the cooling cavity is respectively contacted with a front welding gun seat and a rear welding gun seat, and the water inlet pipeline extends to the bottom position of the cooling cavity.
Further, the water inlet and the water outlet are respectively arranged on the end face of the welding gun rear seat. The design of water inlet and outlet perpendicular to the end face of the welding gun rear seat is compared with the side face of the welding gun body, which is obliquely arranged with the water inlet cone nozzle and the water outlet cone nozzle in the prior art, so that the overflow of water in the water inlet and water outlet processes can be avoided.
Furthermore, an air inlet and a threaded hole for connecting the conducting rod are further formed in the end face of the welding gun rear seat.
Further, the taper angle of the tungsten electrode is within a range of 30-50 cone angle.
Further, the taper angle of the tungsten electrode wire sleeve is 5-35 degrees.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) for the plate with the thickness of less than 16mm, particularly for the metal material with the thickness of 3mm to 16mm, one-time high-efficiency high-quality quick welding can be realized, and the welding speed is in the range of 300mm/min to 1000 mm/min.
(2) The tungsten utmost point presss from both sides and fixes locking with tungsten utmost point locking wire sleeve through the tungsten utmost point, and tungsten utmost point press from both sides area of contact big, and the welder structure has the biggest cooling effect to the tungsten utmost point, and the lower launch area of temperature is little and concentrate on most advanced to electric arc is difficult for climbing, is difficult for dispersing, and welding current can remain stable lockhole welding in heavy current 300A to 1000A within range for a long time when being 300A to 1000A, can remain stable lockhole welding for a long time, can guarantee that the welding seam takes shape unanimously.
(3) The tungsten electrode is clamped through the threaded screw rod, so that the length of the exposed part of the tungsten electrode can be adjusted, the tungsten electrode in the tungsten electrode fixing piece can be exposed for use through adjustment, and the utilization rate of the tungsten electrode is improved.
(4) The method can realize the efficient and high-quality rapid welding of single-side welding and double-side forming under the condition that the middle and rear plates are not provided with grooves, improves the welding efficiency, saves manpower and material resources, and has great enterprise application value.
Drawings
FIG. 1 is a schematic cross-sectional view of a torch body according to an embodiment;
FIG. 2 is a schematic view of a tungsten wire sheath according to one embodiment;
FIG. 3 is a schematic diagram of the tungsten electrode sheath and tungsten electrode assembly according to one embodiment;
FIG. 4 is a schematic view of a torch backseat according to an embodiment;
FIG. 5 is a schematic view of a conductive rod according to an embodiment;
the welding gun comprises a water inlet pagoda nozzle 1, a welding gun shell 2, an air pipe 3, an air pipe 4, a water outlet pipe 5, a water inlet pipe 6, an air outlet channel 7, a welding gun nozzle 8, a tungsten electrode wire sleeve 9, a water outlet pagoda nozzle 10, a welding gun rear seat 11, a welding gun front seat 12, a jackscrew rod 13, a tungsten electrode 14, a jackscrew screw hole 15, an air inlet pagoda nozzle 16, a conducting rod screw hole 17 and a conducting rod.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
Example one
First, it should be explained that:
① high penetration lockhole, which means that the penetration of the welding test piece is very large, and the arc compression can realize the formation of the root of the welding line as the stable state of the shape of a key, thereby realizing the single-side welding and double-side formation of the medium plate and improving the welding efficiency;
② measures for realizing a high-penetration lockhole are that the inside of the welding gun is cooled by a water-cooling circulation system, and simultaneously, the tungsten electrode 13 is fixed and locked with the tungsten electrode 13 locking wire sleeve through the tungsten electrode 13 clamp to achieve the maximum cooling effect on the tungsten electrode 13, thereby inhibiting electric arc divergence caused by electric arc hot climbing, further realizing the electric arc cold compression effect and realizing the stable state of the high-penetration lockhole.
In one or more embodiments, disclosed is a high-penetration argon arc welding gun, which, with reference to fig. 1, includes: the welding gun body, the both ends of welding gun body are equipped with welder front stall 11 and welder back stall 10 respectively, and in this embodiment, the one end of being connected with tungsten electrode 13 is welder front stall 11, and the other end is welder back stall 10.
The welding gun front seat 11 is connected with the welding gun nozzle 7 through threads, a tungsten electrode 13 fixing piece is arranged in the welding gun nozzle 7, and the tungsten electrode 13 fixing piece is connected with the welding gun front seat 11 through threads. The tungsten electrode 13 extends out of the welding gun nozzle 7, and an air outlet channel 6 is arranged between the tungsten electrode 13 and the welding gun nozzle 7. The welding gun nozzle 7 is made of metal material or high-temperature-resistant insulating ceramic material with good heat conductivity.
Referring to fig. 2 and 3, the tungsten electrode 13 fixing member includes: one end of the tungsten electrode wire sleeve 8 is of a cylindrical structure with external threads, and the other end of the tungsten electrode wire sleeve 8 is of a circular truncated cone-shaped structure. The end with the thread of the tungsten electrode wire sleeve 8 is connected with the welding gun front seat 11 through the thread.
A through hole for accommodating a tungsten electrode 13 is formed in the middle of the tungsten electrode wire sleeve 8, the tungsten electrode 13 is inserted into the tungsten electrode wire sleeve 8 from the through hole, and the tungsten electrode 13 is tightly contacted with the inner wall of the tungsten electrode wire sleeve 8; the corresponding positions of two opposite side surfaces of the tungsten electrode wire sleeve 8 are respectively provided with a jackscrew screw hole 14 communicated with the through hole, and after the tungsten electrode 13 is inserted into the tungsten electrode wire sleeve 8, the jackscrew holes 14 at two sides are respectively screwed into jackscrew screws 12, so that the tungsten electrode 13 can be clamped and fixed.
The tungsten electrode 13 fixing piece of the embodiment enables the tungsten electrode 13 to be in surface contact with the tungsten electrode wire sleeve 8, the contact area of the tungsten electrode 13 and the tungsten electrode wire sleeve is increased, the cooling area of the tungsten electrode 13 can be increased, and the maximum cooling effect is achieved. In addition, the tungsten electrode 13 is clamped and fixed through the jackscrew 12, the length of the exposed part of the tungsten electrode 13 can be adjusted, so that the tungsten electrode 13 in the fixing part of the tungsten electrode 13 can be utilized through adjustment, and the utilization rate of the tungsten electrode 13 is improved.
Referring to fig. 4, be equipped with water inlet and delivery port on the welder back seat 10 terminal surface respectively, water inlet and delivery port are connected into water pagoda mouth 1 and play water pagoda mouth 9 respectively, with water inflow pagoda mouth 1, play water pagoda mouth 9 sets up on the terminal surface of welder back seat 10 for intake and play water all perpendicular to terminal surface, compare in prior art with water inflow pagoda mouth 1, play water pagoda mouth 9 slope setting in the side of welder body, can avoid intaking and the spilling over of play water in-process normal water. Of course, in order to facilitate the replacement of the damaged pagoda nozzle in the later period, a person skilled in the art may design the above mentioned pagoda nozzles to be detachably connected with the end surface of the tail portion of the welding gun, for example, the two are connected by a screw thread.
The inlet water pagoda mouth 1 is connected 5 ways of inlet tube, and the outlet water pagoda mouth 9 is connected 4 ways of outlet pipe, and inlet tube 5 ways and outlet pipe 4 ways are through setting up the cooling chamber intercommunication in welder inside, and the cooling chamber contacts respectively with welder front stall 11 and welder back seat 10, and inlet tube 5 ways extend to cooling chamber bottom position, and outlet pipe 4 ways stretch out from the cooling chamber top. In this embodiment, one end of the cooling cavity close to the tungsten electrode 13 is a bottom end, and the other end is a top end.
In the embodiment, the water inlet pipe 5 is positioned at the innermost side of the welding gun and is fixedly connected with the welding gun rear seat 10; the water outlet pipe 4 is positioned outside the water inlet pipe 5, and the water inlet pipe 5 is surrounded by the water outlet pipe 4; the water in the water inlet pipe 5 cools the front seat 11 of the welding gun, so that the tungsten electrode 13 is cooled, the water outlet pipe 4 has a water return effect, and the welding gun is cooled integrally.
In addition, an air inlet and a screw hole 16 of a conductive rod 17 for connection are respectively arranged on the end surface of the welding gun backseat 10, the structure of the conductive rod 17 is shown in fig. 5, and the conductive rod 17 is fixed on the end surface of the welding gun backseat 10 through threads. The welding gun rear seat 10, the air pipe 3, the water outlet pipe 4, the water inlet pipe 5, the welding gun front seat 11, the tungsten electrode wire sleeve 8 and the conducting rod 17 are all made of metal materials with good heat conduction and electric conduction performance. The welding gun body is externally provided with a welding gun shell 2, and the welding gun shell 2 is made of metal materials with better comprehensive performance.
The tungsten electrode 13 should have a taper angle, which is in the range of 30-50 ° in this embodiment, and 45 ° in this embodiment. The taper angle of the tungsten wire sheath 8 is in the range of 5-35 deg., in this example 45 deg..
When the welding gun works, water enters the water inlet pipe 5 from the water inlet and then flows into the water outlet pipe 4 from the water inlet pipe 5, the water in the water outlet pipe 4 has a cooling effect on the front welding gun seat 11, the tungsten electrode wire sleeve 8 and the tungsten electrode 13, the cooled water flows back upwards through the water outlet pipe 4 and flows to the upper water outlet of the rear welding gun seat 10 through the lower water outlet of the rear welding gun seat 10 to complete the water cooling circulation inside the welding gun, protective gas enters the gas pipe 3 from the gas inlet pagoda nozzle 15 on the rear welding gun seat 10, the protective gas in the gas pipe 3 enters the welding gun nozzle 7 through the gas outlet channel 6 uniformly distributed on the front welding gun seat 11, and the protective gas uniformly reaches the upper part of a welding workpiece through the welding gun nozzle 7.
Before welding starts, it is first checked whether the water cooling circuit cycle is working properly. The adopted water cooling circulation system is a standard product of a water cooler commonly used in the industry. After all the devices are checked, different welding process parameters are set according to different materials and different thicknesses, and welding is carried out after the setting is finished. When welding is finished or is interrupted due to failure, the water cooling circulation of the welding gun is kept for 2 minutes, so that the welding gun can be fully cooled, and the service life of the welding gun is prolonged. The matters needing attention when the welding process parameters are debugged are as follows: keeping the distance between the tungsten electrode 13 and the workpiece to be 3mm, keeping the distance between the tungsten electrode 13 and the workpiece to be less than 2mm, easily burning the tungsten electrode 13, and keeping the height between the tungsten electrode 13 and the workpiece to be 4mm, so that the formation of a welding seam is difficult to ensure; when the tip of the tungsten electrode 13 is seriously burnt, the tip is ground in time so as to keep the formation of the welding seam. Others have no special requirements for operation.
Although the present invention has been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without inventive work are still within the scope of the present invention.
Claims (8)
1. A high-depth keyhole argon arc welding gun comprises: the welding gun comprises a welding gun body, wherein a welding gun front seat and a welding gun rear seat are respectively arranged at two ends of the welding gun body; the welder front stall connects tungsten utmost point mounting, its characterized in that, tungsten utmost point mounting includes: the tungsten electrode wire sleeve is provided with a through hole in the middle for accommodating a tungsten electrode, and the corresponding positions of the two opposite side surfaces of the tungsten electrode wire sleeve are respectively provided with a jackscrew screw hole communicated with the through hole.
2. The argon arc welding gun for high-melting-depth lockholes according to claim 1, wherein one end of the tungsten electrode wire sleeve is of a cylindrical structure with an external thread, and the other end of the tungsten electrode wire sleeve is of a circular truncated cone structure.
3. The argon arc welding gun for the high-melting-depth keyhole as recited in claim 1, further comprising: and the jackscrew is matched with the jackscrew screw hole and can fix the tungsten electrode after being screwed into the jackscrew hole.
4. The argon arc welding gun for the high-melting-depth keyhole as recited in claim 1, further comprising: the welding gun comprises a water inlet pipeline connected with a water inlet and a water outlet pipeline connected with a water outlet, wherein the water inlet pipeline and the water outlet pipeline are communicated through a cooling cavity arranged inside a welding gun, the cooling cavity is respectively contacted with a front welding gun seat and a rear welding gun seat, and the water inlet pipeline extends to the bottom position of the cooling cavity.
5. The argon arc welding gun for the high-melting-depth keyhole as recited in claim 1 in which said water inlet and said water outlet are respectively disposed on the end face of the welding gun rear seat.
6. The argon arc welding gun for the high-melting-depth keyhole as claimed in claim 5, wherein an air inlet and a threaded hole for connecting a conductive rod are further formed in the end face of the welding gun backseat.
7. The argon arc welding gun for high-melting-depth keyhole as claimed in claim 1, wherein the taper angle of said tungsten electrode is in the range of 30-50 ° taper angle.
8. The argon arc welding gun for high-penetration keyhole as claimed in claim 1, wherein the taper angle of said tungsten electrode sheath is 5-35 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921714276.0U CN211072179U (en) | 2019-10-12 | 2019-10-12 | Argon arc welding gun with high-fusion-depth lock hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921714276.0U CN211072179U (en) | 2019-10-12 | 2019-10-12 | Argon arc welding gun with high-fusion-depth lock hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211072179U true CN211072179U (en) | 2020-07-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921714276.0U Active CN211072179U (en) | 2019-10-12 | 2019-10-12 | Argon arc welding gun with high-fusion-depth lock hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211072179U (en) |
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2019
- 2019-10-12 CN CN201921714276.0U patent/CN211072179U/en active Active
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