A welding gun

Abstract

The present application provides a welding gun, comprising a first water-cooling assembly and at least one barrel connected to the first water-cooling assembly; a second water-cooling assembly for cooling the barrel and a conductive nozzle connected to the barrel; the barrel is internally provided with a wire channel for introducing welding wire and at least one gas channel for introducing shielding gas; the conductive nozzle is disposed within the first water-cooling assembly and is cooled by the first water-cooling assembly; the wire channel and the gas channel are separated and arranged within the barrel. In the above technical solution, by separately providing at least one gas channel for introducing shielding gas within the barrel, the resistance to the shielding gas is reduced, thereby improving the gas shielding effect. By providing a first water-cooling assembly for cooling the conductive nozzle, the conductive nozzle can be cooled more quickly, further reducing the consumption of the conductive nozzle and extending the service life of the conductive nozzle.

Description

Technical Field

[0001] The present application relates to the technical field of welding equipment, and in particular to a welding gun. Background Art

[0002] Welding technology is widely used to connect a wide variety of materials. Whether in the construction, automotive, machinery, or medical equipment industries, welding technology is essential. In recent years, the economic growth has driven the development of the manufacturing industry, and welding technology has also made significant progress, resulting in increasingly efficient welded products.

[0003] A welding gun is a tool used to perform welding operations. Welding guns are flexible, convenient, and simple to use. However, traditional welding guns can produce unsatisfactory welding results, impacting product performance. Summary of the Invention

[0004] The embodiments of the present application provide a welding gun for improving the cooling effect and gas shielding effect of the welding gun, thereby improving the performance of the welded product.

[0005] The present application provides a welding gun, which includes a first water-cooling component and at least one gun barrel connected to the first water-cooling component; also includes a second water-cooling component for cooling the gun barrel and a conductive nozzle connected to the gun barrel; the gun barrel is provided with a wire channel for passing a welding wire and at least one gas channel for passing a shielding gas; wherein the conductive nozzle is placed inside the first water-cooling component and the conductive nozzle is cooled by the first water-cooling component; the welding wire channel and the gas channel are separated and arranged inside the gun barrel.

[0006] In the above technical solution, by separately setting at least one gas path for introducing shielding gas inside the gun barrel, the resistance to transporting shielding gas is reduced, thereby improving the effect of gas protection; by setting a first water cooling component for cooling the conductive nozzle, the conductive nozzle can be cooled more quickly, further reducing the consumption of the conductive nozzle and extending the service life of the conductive nozzle.

[0007] In a specific possible implementation scheme, the first water-cooling component includes a water-cooling nozzle housing and an inner cavity for circulating cooling liquid; wherein, the inner cavity is arranged inside the side wall of the water-cooling nozzle housing; the water-cooling nozzle housing is connected to the gun barrel; and the conductive nozzle is placed inside the water-cooling nozzle housing.

[0008] In the above technical solution, an inner cavity for circulating coolant is provided inside the side wall of the water-cooled nozzle housing, and the conductive nozzle is placed inside the water-cooled nozzle housing, so that the coolant inside the inner cavity takes away the heat around the conductive nozzle when circulating, thereby cooling the conductive nozzle.

[0009] In a specific embodiment, it further includes a nozzle joint; the nozzle joint abuts against the water-cooled nozzle housing; and the nozzle joint is threadedly connected to the gun barrel.

[0010] In a specific possible implementation scheme, the nozzle joint is further provided with a first locking structure; and the water-cooling nozzle housing is provided with a second locking structure that cooperates with the first locking structure.

[0011] In the above technical solution, by setting a first snap-fit ​​structure on the nozzle joint and setting a second snap-fit ​​structure on the water-cooled nozzle housing to match the first snap-fit ​​structure, a detachable connection between the nozzle joint and the water-cooled nozzle housing can be achieved, which facilitates loading and unloading or replacement of some parts.

[0012] In a specific embodiment, the first engaging structure is a nozzle buckle; the second engaging structure is a slot that matches the nozzle buckle;

[0013] Wherein, the nozzle buckle is buckled and connected with the clamping slot; the nozzle buckle is rotatably connected with the nozzle joint.

[0014] In a specific embodiment, the invention further comprises an insulating component for electrically isolating the gun barrel from the nozzle joint; the insulating component is sleeved between the gun barrel and the nozzle joint.

[0015] In the above technical solution, since the gun barrel is a conductive component, providing an insulating component between the gun barrel and the nozzle joint can achieve an insulating effect between the gun barrel and the nozzle joint.

[0016] In a specific feasible implementation scheme, the insulating assembly includes a first retaining ring, a second retaining ring and a third retaining ring; wherein, one end of the first retaining ring abuts against the nozzle joint; the second retaining ring is threadedly connected to the barrel; one end of the second retaining ring abuts against the first retaining ring; the other end of the second retaining ring abuts against the third retaining ring; and the third retaining ring is connected to the nozzle joint.

[0017] In a specific embodiment, the second water cooling assembly includes two interconnected water channels; the two water channels are arranged inside the gun barrel.

[0018] In the above technical solution, by setting two interconnected water channels inside the barrel, a circulating cooling water system is formed inside the barrel. Under the action of the circulating cooling water, the heat around the barrel and the welding wire can be taken away, thereby improving the welding effect of the welding wire.

[0019] In a specific possible implementation scheme, a diverter is further included; the diverter is communicated with the gas path; the diverter is provided with a plurality of gas holes for spraying protective gas.

[0020] In the above technical solution, by providing a diverter connected to the gas channel, the shielding gas flowing out of the gas channel can be evenly sprayed around the welding area, thereby improving the gas shielding effect of the welding gun during the welding process.

[0021] In a specific possible implementation manner, the gun barrel is provided with an air outlet at one end close to the conductive nozzle; the air outlet is placed inside the diverter. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of the three-dimensional structure of a welding gun provided in an embodiment of the present application;

[0023] Figure 2 for Figure 1 Cross-section in the EE direction;

[0024] Figure 3 A front view of a first water-cooling assembly in a welding gun provided in an embodiment of the present application;

[0025] Figure 4 for Figure 3 A partial enlarged view of point A in the middle;

[0026] Figure 5 A schematic diagram of the gun barrel structure provided in an embodiment of the present application;

[0027] Figure 6 This is a rear view of a welding gun provided in an embodiment of the present application.

[0028] In the figure: 1. gun barrel; 11. welding wire channel; 12. gas channel; 121. gas outlet; 2. first water-cooling assembly; 21. water inlet of water-cooling nozzle; 22. water outlet of water-cooling nozzle; 23. water-cooling nozzle housing; 231. inner cavity; 232. second clamping structure; 3. second water-cooling assembly; 31. water channel; 32. water channel inlet; 33. water channel outlet; 4. conductive nozzle; 5. welding junction box; 6. joint nozzle; 61. first clamping structure; 7. insulating assembly; 71. first retaining ring; 72. second retaining ring; 73. third retaining ring; 8. connecting bracket; 9. diverter; 10. air hole. DETAILED DESCRIPTION

[0029] The present application will be further described in detail below through the accompanying drawings and examples, through which the features and advantages of the present application will become more clear and distinct.

[0030] The word "exemplary" is used exclusively herein to mean "serving as an example, example, or illustration." Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments. Although various aspects of the embodiments are shown in the drawings, the drawings are not necessarily drawn to scale unless otherwise indicated.

[0031] In addition, the technical features involved in different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0032] To facilitate understanding of the welding gun provided in the embodiments of the present application, its application scenarios are first described. The welding gun provided in the embodiments of the present application is used in welding processes and serves as a welding tool. Conventional welding guns currently suffer from unsatisfactory welding results, which can affect product performance. To address this issue, the embodiments of the present application provide a welding gun that improves the gas shielding and cooling effects of the welding gun, thereby enhancing the performance of the welded product. This is described in detail below with reference to specific figures and embodiments.

[0033] For reference Figure 1 and Figure 2 , Figure 1 A schematic diagram of the three-dimensional structure of a welding gun provided in an embodiment of the present application is shown; Figure 2 Shown Figure 1 Cross-section in the EE direction.

[0034] In a specific implementation of an embodiment of the present application, a welding gun is illustrated as including a first water-cooling component 2, at least one gun barrel 1 connected to the first water-cooling component 2, a second water-cooling component 3 for cooling the gun barrel 1, and a conductive nozzle 4 connected to the gun barrel 1.

[0035] Specifically, the barrel 1 is internally provided with a wire channel 11 for passing the welding wire and at least one gas channel 12 for passing shielding gas. The barrel 1 and the wire channel 11 and gas channel 12 therein are integrally formed using 3D printing technology. The contact tip 4 is positioned within the first water-cooling assembly 2, where it is cooled. The wire channel 11 and gas channel 12 are separated within the barrel 1.

[0036] In this embodiment of the present application, the barrel 1 specifically refers to a tubular structure into which a welding wire, coolant, and shielding gas can pass. The conductive tip 4 specifically refers to a metal structure used to conduct current to the welding wire and also guide the welding wire. The conductive tip 4 is a consumable item. It should be noted that shielding gas refers to a gas used to protect the molten metal droplets, the molten pool, and the weld area during the welding process. Shielding gas protects the high-temperature metal from damage by external gases. Types of shielding gas include, but are not limited to, helium and argon.

[0037] In the above structure, at least one gun barrel in this embodiment specifically refers to one or more gun barrels, such as one, two, or three gun barrels. The number of corresponding contact tips 4 is equal to the number of gun barrels 1. When both the number of gun barrels 1 and the number of contact tips 4 are multiple, the multiple gun barrels 1 are connected to the multiple contact tips 4 in a one-to-one correspondence. For example, if there are two gun barrels 1 and two contact tips 4, the two gun barrels 1 are each connected to a corresponding contact tip 4.

[0038] As an optional solution, the welding gun includes two gun barrels 1 and a connecting bracket 8 for fixing and supporting the two gun barrels 1 .

[0039] Specifically, the connecting brackets 8 are two interlocking structures, and when engaged, they form two through-holes for passing the gun barrels 1. It should be understood that the number of through-holes formed by the connecting brackets 8 can be multiple, such as two or three. The number of through-holes formed by the connecting brackets 8 is consistent with the number of gun barrels 1, and the multiple gun barrels 1 correspond one-to-one to the multiple through-holes formed by the connecting brackets 8 when engaged.

[0040] By providing a connecting bracket 8 that forms multiple through holes after buckling, and multiple gun barrels 1 passing through the corresponding through holes, it is achieved that when the number of gun barrels 1 is set to multiple, the positions of the multiple gun barrels 1 can be relatively fixed, thereby improving the stability of the multiple gun barrels 1 in the welding gun.

[0041] The welding wire channel 11 is connected to the conductive tip 4. It should be noted that the welding wire in this embodiment specifically refers to a metal wire welding material used as a filler metal or as a conductive material. The welding wire passes through the welding wire channel 11 and enters the conductive tip 4.

[0042] In the above technical solution, by providing at least one shielding gas passage 12 within the barrel 1, the resistance to shielding gas delivery is reduced, thereby improving the gas shielding effect. The provision of a first water-cooling assembly 2 for cooling the contact tip 4 allows for faster cooling of the contact tip 4, further reducing tip consumption, extending its service life, and reducing the frequency of tip replacement, thereby enhancing the stability of the welding gun during the welding process.

[0043] For reference Figure 3 and Figure 4 , Figure 3 A front view of a first water-cooling assembly in a welding gun provided in an embodiment of the present application is shown; Figure 4 Shown Figure 3 A partial enlarged view of point A in the middle.

[0044] In a specific implementation of the embodiment of the present application, the first water-cooling assembly 2 includes a water-cooling nozzle housing 23 and an inner cavity 231 for circulating cooling water.

[0045] Specifically, the inner cavity 231 is disposed within the sidewall of the water-cooling nozzle housing 23. The specific structure of the inner cavity 231 is not specifically limited in the embodiments of this application; it can be a cavity structure capable of circulating cooling water, such as an annular cavity structure or an arc-shaped cavity structure. This embodiment of the application illustrates the inner cavity 231 as an annular cavity structure. The water-cooling nozzle housing 23 is connected to the gun barrel 1, and the contact nozzle 4 is positioned within the water-cooling nozzle housing 23. The water-cooling nozzle housing 23 and the inner cavity 231 for circulating cooling water are integrally formed using 3D printing technology.

[0046] As an optional solution, a water-cooling nozzle inlet 21 and a water-cooling nozzle outlet 22 are provided on the exterior of the water-cooling nozzle housing 23. Both the water-cooling nozzle inlet 21 and the water-cooling nozzle outlet 22 are in communication with the inner cavity 231. The water-cooling nozzle inlet 21 is connected to a water inlet pipe, while the water-cooling nozzle outlet 22 is connected to a water outlet pipe.

[0047] When the first water-cooling assembly 2 is operating, cooling water flows from the external water inlet pipe through the water-cooling nozzle inlet 21 into the inner cavity 231. As the cooling water continues to flow into the inner cavity 231, the cooling water in the inner cavity 231 becomes saturated and is squeezed out through the water-cooling nozzle outlet 22 to flow into the outlet pipe. This continuous flow of cooling water into and out of the inner cavity 231 creates a repetitive cycle that cools the contact tip 4, thereby reducing energy consumption and extending its service life.

[0048] In a specific implementation of the embodiment of the present application, the welding gun further includes a nozzle joint 6 .

[0049] Specifically, the nozzle joint 6 abuts against the water-cooling nozzle housing 23 , and the nozzle joint 6 is threadedly connected to the gun barrel 1 .

[0050] As an optional solution, the outer wall of the nozzle joint 6 abuts the inner wall of the water-cooled nozzle housing 23, and the inner wall of the nozzle joint 6 is threadedly connected to the outer wall of the barrel 1. By providing the nozzle joint 6, an indirect connection between the barrel 1 and the water-cooled nozzle housing 23 is achieved, so that the end of the barrel 1 closest to the contact nozzle 4 is placed inside the water-cooled nozzle housing 23.

[0051] In another specific implementation of the embodiment of the present application, a first engaging structure 61 is provided on the nozzle joint 6 , and a second engaging structure 232 that cooperates with the first engaging structure 61 is provided on the water-cooling nozzle housing 23 .

[0052] In the above structure, the first locking structure 61 and the second locking structure 232 are not specifically limited in the embodiment of the present application. The first locking structure 61 and the second locking structure 232 can be structures that can cooperate with each other, such as: mutually engaged locking columns and slots, mutually engaged plug-in plates and slots, etc. In the embodiment of the present application, the first locking structure 61 is described as a nozzle clip, and the second locking structure 232 is described as a slot that cooperates with the nozzle clip.

[0053] Specifically, the nozzle clip is snap-fitted with the slot, and the nozzle clip is rotationally connected to the nozzle joint 6. There are multiple ways to rotationally connect the nozzle clip and the nozzle joint 6, such as: a rotating shaft is provided on the nozzle clip, and a through hole is provided on the nozzle joint 6, and the rotating shaft rotates in the through hole to achieve the rotational connection between the nozzle clip and the nozzle joint 6, or through holes are provided on both the nozzle clip and the nozzle joint 6, and a pin is sequentially passed through the through holes on the nozzle clip and the nozzle joint 6 to achieve the rotational connection between the nozzle clip and the nozzle joint 6. In the embodiment of the present application, the rotational connection between the nozzle clip and the nozzle joint 6 is achieved by providing through holes on both the nozzle clip and the nozzle joint 6, and a pin is sequentially passed through the through holes on the nozzle clip and the nozzle joint 6.

[0054] After the nozzle connector 6 is inserted into the water-cooling nozzle housing 23, the nozzle clip is rotated so that a portion of the nozzle clip is inserted into the slot provided on the water-cooling nozzle housing 23, thereby achieving a detachable connection between the nozzle connector 6 and the water-cooling nozzle housing 23. Since the contact nozzle 4 is a consumable part, the detachable connection between the nozzle connector 6 and the water-cooling nozzle housing 23 facilitates replacement of the contact nozzle 4 or other components.

[0055] It should be understood that the present embodiment is described with the first engaging structure 61 being a nozzle buckle and the second engaging structure 232 being a slot that cooperates with the nozzle buckle. In other specific implementations of the present embodiment, the first engaging structure 61 can be a slot and the second engaging structure 232 can be a nozzle buckle that cooperates with the slot.

[0056] In a specific implementation of the embodiment of the present application, the welding gun further includes an insulating component 7 for electrically isolating the barrel 1 from the nozzle joint 6. The insulating component 7 is sleeved between the barrel 1 and the nozzle joint 6.

[0057] Specifically, the insulating assembly 7 includes a first retaining ring 71, a second retaining ring 72, and a third retaining ring 73. One end of the first retaining ring 71 abuts the nozzle connector 6. The second retaining ring 72 is threadedly connected to the barrel 1, with one end of the second retaining ring 72 abutting the first retaining ring 71 and the other end of the second retaining ring 72 abutting the third retaining ring 73. The third retaining ring 73 is connected to the nozzle connector 6.

[0058] Since the gun barrel 1 is a conductive component, providing the insulating component 7 between the gun barrel 1 and the nozzle joint 6 can achieve an insulating effect between the gun barrel 1 and the nozzle joint 6 .

[0059] In another specific implementation of the embodiment of the present application, the second water cooling assembly 3 includes two interconnected water channels 31 .

[0060] Specifically, two water channels 31 are disposed within the barrel 1 and interconnect at the end near the contact tip 4. The two water channels 31 and the wire channel 11 can be arranged in various configurations, such as: the two water channels 31 are disposed in a spiral arrangement along the axial direction of the wire channel 11, or the two water channels 31 are arranged side by side with the wire channel 11. In this embodiment, the two water channels 31 are disposed in a spiral arrangement along the axial direction of the wire channel 11 to provide cooling for the welding wire and the barrel. The barrel 1 and the wire channel 11, gas channel 12, and water channels 31 disposed within the barrel 1 are integrally formed using 3D printing technology.

[0061] In one specific embodiment of the present application, the welding gun further includes a flow diverter 9. The specific structure of the flow diverter 9 is not limited in this application; it can be any structure capable of evenly dispersing the airflow, such as a plurality of guide plates for dispersing the airflow or a hollow chamber that buffers the airflow. In the present embodiment, the specific structure of the flow diverter 9 is a hollow chamber that buffers the airflow.

[0062] Specifically, the diverter 9 is in communication with the gas passage 12. The diverter 9 is provided with a plurality of gas holes 10 for spraying the protective gas.

[0063] refer to Figure 5 , Figure 5 A schematic diagram of the gun barrel structure provided in an embodiment of the present application is shown.

[0064] An air outlet 121 is provided at one end of the gun barrel 1 close to the conductive nozzle 4 ; the air outlet 121 is placed inside the diverter 9 .

[0065] During the operation of the welding gun, the shielding gas enters the chamber of the diverter 9 from the gas path channel 12 through the gas path outlet 121. As the shielding gas in the chamber becomes more and more, and as shielding gas continuously enters the chamber, the shielding gas is squeezed and ejected from multiple air holes 10, achieving uniform and dispersed spraying of the shielding gas and improving the gas shielding effect of the welding gun during welding.

[0066] refer to Figure 6 , Figure 6 A rear view of a welding gun provided in an embodiment of the present application is shown.

[0067] In another specific embodiment of the present application, the welding gun further includes a welding junction box 5. The welding junction box 5 is composed of two structures that can be interlocked, and the end of the barrel 1 away from the conductive tip 4 is placed inside the welding junction box 5.

[0068] The end of the barrel 1 inside the welding junction box 5 is provided with a water channel inlet 32 ​​and a water channel outlet 33. Wherein, the water channel inlet 32 ​​is connected to an external water inlet pipe, and the water channel outlet 33 is connected to an external water outlet pipe.

[0069] When the second water-cooling assembly 3 is operating, cooling water flows from the water inlet pipe through the water channel inlet 32 ​​into the water channel 31. As more cooling water enters the water channel 31, it reaches saturation and flows out of the water channel outlet 33 into the water outlet pipe. This repeated circulation of cooling water removes heat from the wire channel 11 and the surrounding area of ​​the barrel 1, improving the welding gun's continuous performance.

[0070] In the description of this application, it should be noted that the terms "upper", "lower", "inside", "outside", "front", "back", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships in the working state of this application. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on this application.

[0071] In the description of this application, it should be noted that, unless otherwise specified or limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0072] The present application has been described above in conjunction with preferred embodiments, but these embodiments are merely exemplary and serve only as an illustrative example. On this basis, various replacements and improvements can be made to the present application, all of which fall within the scope of protection of the present application.

Claims

1. A welding gun, characterized in that: It includes a first water-cooling assembly and at least one gun barrel connected to the first water-cooling assembly; The gun barrel further comprises a second water cooling assembly for cooling the gun barrel and a conductive nozzle connected to the gun barrel; the gun barrel is provided with a wire channel for introducing welding wire and at least one gas channel for introducing shielding gas; The conductive nozzle is placed inside the first water-cooling assembly, and the conductive nozzle is cooled by the first water-cooling assembly; the welding wire channel and the gas channel are separated and arranged inside the barrel; The second water cooling assembly includes two interconnected water channels, both of which are arranged inside the barrel, and the two water channels are connected at ends close to the conductive nozzle, and the two water channels are arranged spirally around the welding wire channel along the axial direction of the welding wire channel; Wherein, the gun barrel, the welding wire channel, the gas channel and the water channel are integrally formed.

2. The welding gun according to claim 1, characterized in that The first water-cooling assembly includes a water-cooling nozzle housing and an inner cavity for circulating cooling liquid; Wherein, the inner cavity is arranged inside the side wall of the water-cooling nozzle housing; The water-cooling nozzle housing is connected to the gun barrel; the conductive nozzle is placed inside the water-cooling nozzle housing.

3. The welding gun according to claim 1, characterized in that It also includes a nozzle joint; the nozzle joint abuts against the water-cooling nozzle housing; and the nozzle joint is threadedly connected to the gun barrel.

4. The welding gun according to claim 3, characterized in that The nozzle joint is further provided with a first clamping structure; the water-cooling nozzle housing is provided with a second clamping structure that matches the first clamping structure.

5. The welding gun according to claim 4, characterized in that The first engaging structure is a nozzle buckle; the second engaging structure is a slot matched with the nozzle buckle; Wherein, the nozzle buckle is buckled and connected with the clamping slot; the nozzle buckle is rotatably connected with the nozzle joint.

6. The welding gun according to claim 4, characterized in that It also includes an insulating component for electrically isolating the gun barrel from the nozzle joint; the insulating component is sleeved between the gun barrel and the nozzle joint.

7. The welding gun according to claim 6, characterized in that The insulating assembly includes a first retaining ring, a second retaining ring and a third retaining ring; Wherein, one end of the first retaining ring abuts against the nozzle joint; The second retaining ring is threadedly connected to the gun barrel; one end of the second retaining ring abuts against the first retaining ring; the other end of the second retaining ring abuts against the third retaining ring; The third retaining ring is connected to the nozzle joint.

8. The welding gun according to claim 1, characterized in that It also includes a diverter; the diverter is communicated with the gas path; the diverter is provided with a plurality of air holes for spraying protective gas.

9. The welding gun according to claim 8, characterized in that An air outlet is provided at one end of the gun barrel close to the conductive nozzle; the air outlet is placed inside the diverter.

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