CN219402753U - Right-angle type rotary arc welding gun - Google Patents
Right-angle type rotary arc welding gun Download PDFInfo
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- CN219402753U CN219402753U CN202320629704.XU CN202320629704U CN219402753U CN 219402753 U CN219402753 U CN 219402753U CN 202320629704 U CN202320629704 U CN 202320629704U CN 219402753 U CN219402753 U CN 219402753U
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- main shaft
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- gun
- gun barrel
- arc welding
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The utility model relates to a right-angle type rotary arc welding gun, belonging to the technical field of welding equipment, wherein a main shaft is arranged in the gun barrel, a horizontal barrel is arranged above the gun barrel and perpendicular to the gun barrel, a motor is transversely arranged in the horizontal barrel, an inclined tooth surface is arranged at the upper part of the main shaft, the end part of an output shaft of the motor is connected with the tooth surface of the main shaft through a gear pair, the rotation of the motor in the horizontal direction drives the main shaft to rotate in the vertical direction through the gear pair, the top end of the main shaft is connected with a carbon brush, a protective cover is arranged outside the carbon brush, a partition plate is arranged between the protective cover and the horizontal barrel, and a through hole is formed in the center of the protective cover; a bearing is arranged between the main shaft and the gun barrel, the main shaft rotates in the gun barrel under the drive of the motor, a tungsten electrode is arranged at the bottom of the main shaft, the bottom of the gun barrel is connected with a gas hood, a gas inlet is arranged on the side face of the gas hood, a water cooling device is arranged in the middle of the gun barrel, and the water cooling device comprises a water inlet and a water outlet. The automatic welding device can be matched with an automatic advancing device to automatically weld, can be manually held, is wide in application and high in practicability.
Description
Technical Field
The utility model relates to a right-angle type rotary arc welding gun, and belongs to the technical field of welding equipment.
Background
Tungsten argon arc welding is often called TIG welding, and is an arc welding mode for generating heat between a non-consumable electrode and a workpiece, unlike consumable electrode welding, tungsten electrode is not consumed in the welding process, inert gas is continuously sprayed out from a nozzle of a welding gun during welding, and a protective layer is formed around the arc to isolate air so as to prevent oxidation of the tungsten electrode, a molten pool and adjacent heat affected zones, thereby obtaining a high-quality welding seam. The filler wire may or may not be added during the welding process depending on the specific requirements of the workpiece. The argon tungsten-arc welding operation method can be divided into manual argon tungsten-arc welding and mechanical welding. For straight welds and regular curved welds, mechanized welding may be employed. Whereas for irregular or shorter welds, manual argon tungsten-arc welding is used.
The existing argon tungsten-arc welding gun is mainly of a fixed tungsten electrode structure, and adopts axisymmetric tungsten electrodes and tip discharge, and is used for automatic equipment or handheld use. The arc influence area is small, the bearing current is not large, and high-current efficient welding is difficult to realize.
The arc is rotated, so that a molten pool can be effectively stirred, the mechanical property of a welding seam is improved, grains are refined, and occasions with high requirements on nuclear power, military industry and the like are met. After the tungsten electrode rotates, the arc affected area increases, and the metal material in the molten pool flows in a specific direction. By adopting the non-axisymmetric rotating tungsten electrode, the tip discharge area is greatly increased compared with the tip, and the heavy-current wireless conductive module is added, so that the loadable current of the welding gun can be improved, and the production efficiency is improved.
The rotating tungsten electrode welding gun is heavy and is generally mechanical automatic equipment compared with a common manual argon arc welding gun due to the addition of a rotating device, a transmission part, a water cooling part and the like. So the existing hand-held welding guns are all common gas metal arc welding guns, and no rotary argon tungsten-arc welding device suitable for manual hand holding exists.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model provides a right-angle type rotary arc welding gun which is mainly used for handheld welding.
The technical scheme of the utility model is as follows:
the right-angle type rotary arc welding gun comprises a gun barrel, wherein a main shaft is arranged in the gun barrel, a horizontal barrel is arranged above the gun barrel and perpendicular to the gun barrel, a motor is transversely arranged in the horizontal barrel, an inclined tooth surface is arranged at the upper part of the main shaft, the end part of an output shaft of the motor is connected with the tooth surface of the main shaft through a gear pair, the rotation of the motor in the horizontal direction drives the main shaft to rotate in the vertical direction through the gear pair, the top end of the main shaft is connected with a carbon brush, a protective cover is arranged outside the carbon brush, a partition plate is arranged between the protective cover and the horizontal barrel, a through hole is formed in the center of the protective cover, and the protective cover is connected with an external power line through the carbon brush with the through hole to electrify the main shaft; a bearing is arranged between the main shaft and the gun barrel, the main shaft rotates in the gun barrel under the drive of the motor, a tungsten electrode is arranged at the bottom of the main shaft, the bottom of the gun barrel is connected with a gas hood, a gas inlet is arranged on the side face of the gas hood, a water cooling device is arranged in the middle of the gun barrel, and the water cooling device comprises a water inlet and a water outlet.
When the welding gun is used, the horizontal cylinder can be fixed on the travelling device, or the horizontal cylinder is manually held, an external welding power supply is connected, the horizontal cylinder motor rotates to drive the main shaft and the tungsten electrode to rotate, water cooling and protective gas are introduced, the water cooling is circularly cooled at the middle part of the gun barrel, the protective gas is introduced from an inlet at the side face of the gas hood, the protective gas is sprayed out from the bottom of the gas hood, and the welding gun is utilized to strike an arc between the tungsten electrode and a workpiece to perform welding work of the rotating tungsten electrode.
Preferably, the tungsten electrode is fixedly connected with the bottom of the main shaft through a locking nut. The main shaft drives the tungsten electrode to rotate when rotating.
Preferably, the tungsten electrode extends through and under the gas shield. So that the protective gas blown out from the gas hood after the arc between the tungsten electrode and the workpiece can effectively compress and protect the arc.
Preferably, a sealing ring is arranged between the main shaft and the gun barrel and is positioned above and below the water cooling device. A closed chamber with a water inlet and a water outlet is formed between the upper sealing ring and the lower sealing ring, cooling water enters through the water inlet and is discharged through the water outlet.
Preferably, the gas cap is threadably connected to the bottom of the barrel. The gas hood is screwed at the bottom of the gun barrel, so that the gun barrel is convenient to assemble and replace.
Preferably, the number of the bearings is two, and the bearings are arranged at the upper end and the lower end of the main shaft. The main shaft rotation process is more stable, and the rotation offset is reduced.
Preferably, the bottom of the tungsten electrode is provided with an inclined plane. Tungsten is a tungsten electrode which is not axisymmetric, and in the rotating process, an arc rotates along with the inclined plane at the bottom of the tungsten electrode, so that the arc can be more easily diffused to the side wall, and a molten pool can be better fused with the side wall. The requirement on the personal skill level of workers can be reduced, the existing argon arc welder has higher requirement on the personal skill, and the labor intensity of the workers during operation can be reduced.
Preferably, the number of the carbon brushes is four, the carbon brushes are uniformly distributed outside the circumference of the main shaft, and the adjacent two carbon brushes are spaced by 90 degrees.
The utility model has the beneficial effects that:
the device can be matched with an automatic advancing device for automatic welding, can be manually held, is not applicable to welding automatic machines, is an irregular welding line or a shorter welding line, and is manually welded by using a hand-held rotary argon tungsten-arc welding gun. The rotary arc can effectively stir the molten pool, improve the mechanical property of the welding seam, facilitate grain refinement, and meet the occasions with higher requirements of nuclear power, military industry and the like. After the tungsten electrode rotates, the arc affected area increases, and the metal material in the molten pool flows in a specific direction. By adopting the non-axisymmetric rotating tungsten electrode, the tip discharge area is greatly increased compared with the tip, and the heavy-current wireless conductive module is added, so that the loadable current of the welding gun can be improved, and the production efficiency is improved. Rotating the arc allows the melt pool to better fuse the side walls. The requirement on the personal skill level of workers can be reduced during manual operation, the labor intensity of the workers during operation can be reduced, and the device is wide in application and high in practicability.
Drawings
FIG. 1 is a schematic diagram of a front view of a welding gun according to the present utility model;
FIG. 2 is a schematic top view of a welding gun according to the present utility model;
wherein: 1. the device comprises a protective cover, 2, a carbon brush, 3, a partition plate, 4, a horizontal cylinder, 5, a motor, 6, a gear pair, 7, a main shaft, 8, a bearing, 9, a gun cylinder, 10, a sealing ring, 11, a gas hood, 12, a locking nut, 13, a tungsten electrode, 14, a tooth surface, 15, an air inlet, 16 and a water cooling device.
Detailed Description
The utility model will now be further illustrated by way of example, but not by way of limitation, with reference to the accompanying drawings.
Example 1:
the right-angle type rotary arc welding gun is shown in fig. 1, and comprises a gun barrel 9, wherein a main shaft 7 is arranged in the gun barrel, a horizontal barrel 4 is arranged above the gun barrel and perpendicular to the gun barrel, a motor 5 is transversely arranged in the horizontal barrel, an inclined tooth surface 14 is arranged at the upper part of the main shaft, the end part of an output shaft of the motor is connected with the tooth surface of the main shaft through a gear pair 6, the rotation of the motor in the horizontal direction drives the main shaft to rotate in the vertical direction through the gear pair, the top end of the main shaft is connected with four carbon brushes 2, the number of the carbon brushes is four, the circumference of the main shaft is uniformly distributed, the two adjacent carbon brushes are spaced by 90 degrees as shown in fig. 2, a protective cover 1 is arranged outside the carbon brushes, a partition plate 3 is arranged between the protective cover 1 and the horizontal barrel 4, the center of the protective cover 1 is provided with a through hole, and the carbon brushes are connected with an external power line through the through hole for electrifying the main shaft; a bearing 8 is arranged between the main shaft and the gun barrel, the main shaft rotates in the gun barrel under the drive of a motor, a tungsten electrode 13 is arranged at the bottom of the main shaft, a gas hood 11 is connected to the bottom of the gun barrel 9, the gas hood is connected with the bottom of the gun barrel through threads, an air inlet 15 is arranged on the side face of the gas hood, a water cooling device 16 is arranged in the middle of the gun barrel, and the water cooling device comprises a water inlet and a water outlet.
When the welding gun is used, the horizontal cylinder can be fixed on the travelling device, or the horizontal cylinder is manually held, an external welding power supply is connected, the horizontal cylinder motor rotates to drive the main shaft and the tungsten electrode to rotate, water cooling and protective gas are introduced, the water cooling is circularly cooled at the middle part of the gun barrel, the protective gas is introduced from an inlet at the side face of the gas hood, the protective gas is sprayed out from the bottom of the gas hood, and the welding gun is utilized to strike an arc between the tungsten electrode and a workpiece to perform welding work of the rotating tungsten electrode.
Example 2:
a right angle type rotary arc welding gun is constructed as in example 1, except that a tungsten electrode 13 is fixedly connected to the bottom of a main shaft 7 by a lock nut 12. The main shaft drives the tungsten electrode to rotate when rotating.
Example 3:
a right angle rotary arc welding gun constructed as described in example 1, except that tungsten electrode 13 extends through and below gas shield 11. So that the protective gas blown out from the gas hood after the arc between the tungsten electrode and the workpiece can effectively compress and protect the arc.
Example 4:
a right angle rotary arc welding gun constructed as described in example 1, except that a seal ring 10 was provided between the main shaft and the gun barrel above and below the water cooling device. A closed chamber with a water inlet and a water outlet is formed between the upper sealing ring and the lower sealing ring, cooling water enters through the water inlet and is discharged through the water outlet.
Example 5:
a right-angle rotary arc welding gun is constructed as in example 1, except that two bearings are provided at both upper and lower ends of a main shaft. The main shaft rotation process is more stable, and the rotation offset is reduced.
Example 6:
a right angle type rotary arc welding gun is constructed as described in example 1, except that the bottom of the tungsten electrode is provided with a bevel.
Claims (8)
1. The right-angle type rotary arc welding gun is characterized by comprising a gun barrel, wherein a main shaft is arranged in the gun barrel, a horizontal barrel is arranged above the gun barrel and perpendicular to the gun barrel, a motor is transversely arranged in the horizontal barrel, an inclined tooth surface is arranged at the upper part of the main shaft, the end part of an output shaft of the motor is connected with the tooth surface of the main shaft through a gear pair, the top end of the main shaft is connected with a carbon brush, a protective cover is arranged outside the carbon brush, a partition plate is arranged between the protective cover and the horizontal barrel, and a through hole is formed in the center of the protective cover; a bearing is arranged between the main shaft and the gun barrel, a tungsten electrode is arranged at the bottom of the main shaft, a gas hood is connected at the bottom of the gun barrel, a gas inlet is arranged on the side face of the gas hood, a water cooling device is arranged in the middle of the gun barrel, and the water cooling device comprises a water inlet and a water outlet.
2. The right angle rotary arc welding gun of claim 1 wherein the tungsten electrode is fixedly connected to the bottom of the main shaft by a lock nut.
3. The right angle rotary arc welding gun of claim 1 wherein the tungsten electrode extends through and below the gas shield.
4. The right angle rotary arc welding gun of claim 1 wherein sealing rings are provided between the main shaft and the barrel above and below the water cooling means.
5. The right angle rotary arc welding gun of claim 1 wherein the gas cap is threadably connected to the bottom of the barrel.
6. The right angle type rotary arc welding gun according to claim 1, wherein the number of bearings is two, and the bearings are provided at upper and lower ends of the main shaft.
7. The right angle rotary arc welding gun of claim 1 wherein the tungsten electrode base is beveled.
8. The right angle type rotary arc welding gun according to claim 1, wherein the number of carbon brushes is four, the carbon brushes are uniformly distributed outside the circumference of the main shaft, and two adjacent carbon brushes are spaced by 90 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320629704.XU CN219402753U (en) | 2023-03-28 | 2023-03-28 | Right-angle type rotary arc welding gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320629704.XU CN219402753U (en) | 2023-03-28 | 2023-03-28 | Right-angle type rotary arc welding gun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219402753U true CN219402753U (en) | 2023-07-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320629704.XU Active CN219402753U (en) | 2023-03-28 | 2023-03-28 | Right-angle type rotary arc welding gun |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219402753U (en) |
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2023
- 2023-03-28 CN CN202320629704.XU patent/CN219402753U/en active Active
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