Gas guide assembly of TIG (Tungsten Inert Gas) gas shielded welding gun

Abstract

The embodiment of the invention provides a gas guide assembly of a TIG gas shielded welding gun, and relates to the field of welding. The gas guide assembly of the TIG gas protection welding gun comprises an upper water cooling block and a lower water cooling block which are symmetrically arranged, and the upper water cooling block and the lower water cooling block jointly form a ceramic gas hood. Wherein the bottom of the upper water cooling block is in threaded connection with a tungsten electrode clamp, a tungsten electrode piece is arranged in the tungsten electrode clamp in a penetrating mode, an air plug is screwed into the end, close to the bottom, of the outer surface of the tungsten electrode clamp in a threaded mode, and the tungsten electrode piece is locked and fixed through the cooperation of the air plug and the tungsten electrode clamp. According to the scheme, the problems that in the prior art, argon flow is blocked, the protection effect is poor, and the service life of the tungsten electrode and the tungsten electrode clamp is short can be effectively solved.

Description

Technical Field

[0001] This application relates to the field of welding technology, and more specifically, to a gas guiding assembly for a TIG gas shielded welding torch. Background Technology

[0002] TIG welding torches are the core tools for achieving tungsten inert gas (TIG) shielded arc welding. During welding, the welding wire is continuously fed to the tip of the torch. When the tungsten electrode is energized, a high-temperature arc is formed between it and the workpiece, melting the welding wire and completing the welding process. Argon, as the critical shielding gas, must stably cover the tip of the tungsten electrode and the molten metal area, effectively isolating it from air to prevent oxidation and ensuring the purity and structural strength of the weld. The gas guide assembly, as the core unit of the TIG welding torch head, consists of the tungsten electrode, tungsten electrode clamp, and gas plug. It plays a crucial role in precisely fixing the tungsten electrode position, guiding the argon flow, and achieving uniform gas distribution, directly affecting the welding protection effect and process stability.

[0003] However, existing gas-guided components face severe challenges in practical applications. The argon gas flow path design has inherent flaws; an unreasonable gas channel layout leads to localized accumulation or eddies in narrow areas, causing flow obstruction and uneven distribution. This uneven gas coverage exposes the welding area to air, preventing the formation of a continuous protective layer and resulting in problems such as tungsten electrode surface oxidation, increased weld porosity, and deterioration of mechanical properties. Simultaneously, the high heat generated by the tungsten electrode during welding is difficult to dissipate promptly. Due to the extremely narrow contact interface between the tungsten electrode holder and the water-cooling block, heat conduction efficiency is extremely low, causing continuous localized heat accumulation. This not only causes abnormally high temperatures in the tungsten electrode and holder, accelerating material aging and deformation, but also significantly increases the risk of component failure, drastically shortens service life, and affects welding continuity and equipment reliability. Summary of the Invention

[0004] This application aims to address at least one of the technical problems existing in the prior art. To this end, this application proposes a gas guiding assembly for a TIG gas shielded welding torch, which can effectively solve the problems of argon gas flow blockage, poor protection effect, and short service life of tungsten electrodes and tungsten electrode clamps in the prior art.

[0005] According to an embodiment of this application, the gas guiding assembly of the TIG gas shielded welding torch includes: an upper water cooling block and a lower water cooling block arranged symmetrically, the upper water cooling block and the lower water cooling block together forming a "ceramic gas shroud"; The bottom of the upper water-cooling block is threaded with a tungsten electrode clamp, and a tungsten electrode is installed through the tungsten electrode clamp. An air plug is screwed into the outer surface of the tungsten electrode clamp near the bottom, and the air plug is used in conjunction with the tungsten electrode clamp to lock and fix the tungsten electrode. Meanwhile, an inner groove is formed above the inner surface of the tungsten electrode clip, and multiple air inlets are symmetrically formed along the annular outer wall of the outer surface of the tungsten electrode clip. The air inlets and the inner groove cavity wall are interconnected. An anti-blocking component is formed through the surface of the gas plug. The anti-blocking component is used to uniformly distribute the gas.

[0006] According to some embodiments of this application, a sealing groove 2 is provided at the bottom of the upper water-cooling block, wherein a sealing element is fitted and installed in the sealing groove 2.

[0007] According to some embodiments of this application, the top of the upper water-cooled block is connected to a mounting base, which can be used to connect with the welding torch during welding operations, and an air inlet is provided through the top of the inner surface of the mounting base.

[0008] According to some embodiments of this application, a positioning groove is provided on the top of the inner surface of the upper water-cooled block and on the side of the air inlet, while an air outlet is provided on the bottom of the inner surface of the upper water-cooled block and at the bottom of the positioning groove.

[0009] According to some embodiments of this application, the top of the air plug is provided with an annular groove, which is ring-shaped.

[0010] According to some embodiments of this application, the anti-clogging component includes vertical holes, which are multiple holes uniformly formed through the inner surface of the air plug, and the air plug and the inner cavity of the annular groove are interconnected.

[0011] According to some embodiments of this application, the anti-clogging component includes a spiral hole, wherein the spiral hole is spirally opened on the inner surface of the air plug, and a plurality of upper holes are opened through the top of the air plug and at the bottom of the annular groove cavity, the bottom of the inner cavity of the upper holes being connected to the input end of the spiral hole.

[0012] According to some embodiments of this application, the anti-clogging component includes an annular hole, which is annularly opened on the surface of the air plug and located on one side of the annular groove, and the cross-sectional shape of the annular hole is conical.

[0013] According to some embodiments of this application, the surface of the air plug and the bottom of the annular hole are provided with elongated holes, which are vertical and there are multiple elongated holes.

[0014] According to some embodiments of this application, an arc-shaped groove is provided at the bottom of the inner surface of the air plug and at the bottom of the elongated hole, and the cross-section of the arc-shaped groove is fan-shaped.

[0015] The beneficial effects of this application are as follows: This solution can effectively solve the problems of argon flow blockage, poor protection effect, and short service life of tungsten electrodes and tungsten electrode clamps in the prior art. Specifically, the upper and lower water-cooling blocks are combined to form a "ceramic gas shield," which, together with the sealing components and the sealing rubber gasket in the sealing groove of the mounting base, can effectively seal all connections of the welding torch, preventing argon leakage. The air inlet of the mounting base, the air outlet of the upper water-cooling block, the inner groove and vent of the tungsten electrode clamp, and the annular groove of the gas plug form a smooth argon flow path. Combined with the anti-blocking components, this effectively avoids argon flow blockage, allowing argon to flow smoothly and uniformly. The argon gas covers the area where the tungsten electrode and welding wire have melted and solidified, fully utilizing the protective effect of argon gas to prevent oxidation of the tungsten electrode and degradation of weld quality. Meanwhile, the upper and lower water-cooling blocks, tungsten electrode clamps, and gas plugs are all made of copper, increasing the contact area between the tungsten electrode clamps and the upper water-cooling block, improving heat dissipation, effectively reducing the operating temperature of the tungsten electrode and clamps, preventing damage due to high temperatures, and significantly extending their service life. The positioning groove guides the tungsten electrode, and the tungsten electrode clamps, in conjunction with the gas plug, ensure a secure locking of the tungsten electrode, further guaranteeing welding stability and quality.

[0016] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments of this application will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a three-dimensional schematic diagram of the overall structure according to an embodiment of this application; Figure 2 This is one of the exploded views of the overall structure according to an embodiment of this application; Figure 3 This is the second exploded view of the overall structure according to an embodiment of this application; Figure 4 This is an exploded cross-sectional view of the overall structure according to an embodiment of this application; Figure 5 This is a schematic front sectional view of the overall structure according to an embodiment of this application; Figure 6 This is an exploded cross-sectional view of the structure of the lower water-cooling block, tungsten electrode, air plug, tungsten electrode clip, and upper water-cooling block according to an embodiment of this application. Figure 7This is a schematic diagram of the assembly of the upper water-cooling block and mounting base according to an embodiment of this application; Figure 8 This is a three-dimensional cross-sectional view of the structure of the lower water-cooling block, tungsten electrode, air plug, tungsten electrode clip, and upper water-cooling block according to an embodiment of this application. Figure 9 This is a front view schematic diagram of the structure of the lower water-cooling block, tungsten electrode, air plug, tungsten electrode clamp, and upper water-cooling block according to an embodiment of this application; Figure 10 This is a schematic diagram of the structural assembly of the second embodiment of the air plug and anti-blocking component according to the present application; Figure 11 This is a front view schematic diagram of the structure of the second embodiment of the air plug and anti-blocking assembly according to the present application; Figure 12 This is a cross-sectional view of the structure of the second embodiment of the air plug and anti-clogging component according to the present application; Figure 13 This is a schematic diagram of the structural assembly of the third embodiment of the air plug and anti-blocking assembly according to the present application; Figure 14 This is a front view schematic diagram of the structure of the third embodiment of the air plug and anti-blocking assembly according to the present application; Figure 15 This is a cross-sectional view of the structure of the third embodiment of the air plug and anti-blocking component according to the present application.

[0019] Icons: 100, Mounting base; 110, Upper water-cooling block; 120, Sealing groove one; 130, Air inlet; 140, Positioning groove; 150, Air outlet; 160, Seal; 170, Sealing groove two; 200, Tungsten electrode clip; 210, Inner groove; 220, Air vent; 300, Air plug; 310, Annular groove; 400, Tungsten electrode; 500, Lower water-cooling block; 600, Vertical hole; 700, Upper hole; 710, Spiral hole; 800, Annular hole; 810, Long hole; 820, Arc groove. Detailed Implementation

[0020] The technical solutions in the embodiments of this application will now be described with reference to the accompanying drawings.

[0021] Traditional TIG welding torches suffer from poorly designed argon gas flow paths during welding, leading to blockages and uneven coverage of the protected area. This results in ineffective protection, tungsten electrode oxidation, and reduced weld quality. Furthermore, the small contact area between the tungsten electrode holder and the water-cooling block hinders heat dissipation, causing excessively high temperatures in both the tungsten electrode and holder, leading to damage and a shortened lifespan.

[0022] In response, this application proposes a gas guiding assembly for a TIG gas shielded welding torch, such as... Figures 1 to 15As shown in the embodiment of this application, the gas guiding assembly of the TIG gas shielded welding torch includes an upper water-cooling block 110 and a lower water-cooling block 500 arranged symmetrically. The upper water-cooling block 110 and the lower water-cooling block 500 together form a "ceramic gas shield". This "ceramic gas shield" structure can be made of ceramic material, or its inner surface can be coated with a ceramic coating to provide insulation and high-temperature resistance, while providing gas protection for the welding area. The upper water-cooling block 110 and the lower water-cooling block 500 are the main structural components of the gas guiding assembly. They are configured symmetrically and together constitute a "ceramic gas shield" structure for guiding and protecting the welding area. This structure is designed to provide a stable gas protective environment for the welding process.

[0023] The upper water cooling block 110, the lower water cooling block 500, the tungsten electrode clip 200, and the air plug 300 are all made of copper. The upper water-cooling block 110 has a sealing groove 170 at its bottom, in which a sealing element 160 is fitted and installed. When the upper water-cooling block 110 and the lower water-cooling block 500 are assembled, the sealing element 160 at one end is sealed. The sealing element 160 is hollow and made of rubber.

[0024] Specifically, the sealing groove 170 is a recess or cavity formed at the bottom of the upper water-cooling block 110. Its main function is to provide a precise receiving space and support structure for the seal 160. The shape and size of the sealing groove 170 are typically matched to the selected seal 160 to ensure that the seal 160 can be correctly positioned and compressed. By placing the sealing groove 170 at the bottom of the upper water-cooling block 110, a controlled sealing interface can be effectively formed between the water-cooling block and the components connected below, thereby preventing gas from escaping from this interface. The design of the sealing groove 170 can adopt different cross-sectional shapes, such as rectangular, U-shaped, or V-shaped, to optimize the sealing effect and the installation stability of the seal 160.

[0025] Seal 160 is a component made of an elastic material that functions to form a tight contact between two mating surfaces to prevent leakage of gas or liquid. When seal 160 is fitted into sealing groove 170, it is subjected to appropriate compression, thereby generating a sealing force on the contact surface. This sealing force effectively fills any tiny gaps that may exist between the mating surfaces, thus establishing a continuous airtight barrier. The material selection for seal 160 is crucial; typically, high-temperature resistant, corrosion-resistant, and highly elastic materials are chosen, such as fluororubber, silicone rubber, or nitrile rubber, to meet the stringent requirements of the TIG welding environment. Through the fitted installation method, seal 160 is stably fixed within sealing groove 170, preventing it from easily falling off or shifting, thus ensuring long-term reliable sealing performance.

[0026] Through the above technical solution, a sealing groove 170 is opened at the bottom of the upper water-cooling block 110 and a sealing element 160 is fitted in place. This component can effectively prevent the protective gas from leaking from the connection interface between the upper water-cooling block 110 and the lower component during the welding process. Under the constraint of the sealing groove 170, the sealing element 160 can provide a stable sealing pressure, ensuring the integrity of the gas flow path. This not only ensures that the protective gas can be efficiently and accurately delivered to the welding area, avoiding weld oxidation problems caused by gas leakage, but also significantly improves welding quality and gas utilization efficiency, and extends the service life of the welding torch.

[0027] The top of the upper water-cooling block 110 is connected to the mounting base 100. The upper water-cooling block 110 and the mounting base 100 are integrally formed. A sealing groove 120 is die-cut into the surface of the mounting base 100. The mounting base 100 can be connected to the gun body during welding. When the mounting base 100 is connected to the gun body, a sealing rubber gasket is installed in the sealing groove 120 of its connection surface. The sealing rubber gasket can seal and block the connection between the gun body and the mounting base 100. An air inlet 130 is opened through the top of the inner surface of the mounting base 100. After the mounting base 100 is connected to the gun body, argon gas can enter into the air inlet 130.

[0028] Specifically, the mounting base 100 is a structural component whose main function is to provide a stable connection interface, enabling the gas guiding assembly to reliably connect mechanically to the welding gun body during welding operations. The mounting base 100 can adopt various structural forms, such as threaded connections, snap-fit ​​connections, pin connections, or welding, to be fixedly connected to the top of the upper water-cooling block 110, and further to achieve quick or permanent assembly with the welding gun body through corresponding connecting mechanisms. Its design should ensure that during the welding process, the gas guiding assembly can withstand certain mechanical stress and maintain precise positioning to maintain the effectiveness of gas protection.

[0029] The air inlet 130 is a through-hole located at the top of the inner surface of the mounting base 100. Its main function is to serve as the inlet for protective gas to enter the gas guiding assembly from the welding torch body. The size, shape, and position of the air inlet 130 should be designed to ensure that the gas can be smoothly introduced at an appropriate flow rate and pressure, avoiding obstruction or turbulence in gas flow. Typically, the air inlet 130 is connected to the gas delivery pipe inside the welding torch body, forming a continuous gas channel to provide the initial gas source for subsequent gas guiding and homogenization.

[0030] Through the aforementioned technical solution, the mounting base 100 provides a robust and reliable mechanical interface, enabling the gas guiding assembly to be securely connected to the welding torch during welding operations, thereby ensuring the structural integrity and operational stability of the entire welding system. Simultaneously, the through-hole 130 on the top inner surface of the mounting base 100 provides a direct and efficient channel for protective gas to enter the gas guiding assembly from the torch. This design effectively solves the problems of the stability of the connection between the gas guiding assembly and the torch, as well as the smoothness of protective gas introduction, ensuring a continuous and stable supply of protective gas to the welding area during welding, thus significantly improving welding quality and effectively preventing weld oxidation and defects.

[0031] Furthermore, a positioning groove 140 is provided on the top of the inner surface of the upper water-cooling block 110 and on one side of the air inlet 130. The positioning groove 140 can guide the tungsten electrode 400. An air outlet 150 is provided on the bottom of the inner surface of the upper water-cooling block 110 and at the bottom of the positioning groove 140. The inner cavity of the air outlet 150 is connected to the inner cavities of the positioning groove 140 and the air inlet 130, respectively. The air outlet 150, together with the positioning groove 140, is used to guide the assembly of the tungsten electrode 400. The air outlet 150, together with the air inlet 130, can deliver argon gas to protect the surface of the tungsten electrode 400 and prevent it from oxidizing.

[0032] Specifically, the shape of the positioning groove 140 can be designed as a ring, a semi-ring, or a long strip, depending on actual needs.

[0033] The bottom of the upper water-cooling block 110 is threadedly connected to a tungsten electrode clamp 200, which is a component used to fix the tungsten electrode 400. It is typically connected to the bottom of the upper water-cooling block 110 via a threaded connection and cooperates with the gas plug 300 to ensure the stability of the tungsten electrode 400's position during welding. The tungsten electrode 400, which is the electrode used in TIG welding, is disposed throughout the tungsten electrode clamp 200, generating an electric arc during welding to melt the welding wire and the workpiece.

[0034] The tungsten electrode clip 200 is configured to allow the tungsten electrode 400 to pass through it. The tungsten electrode 400 can be directly inserted into the central hole of the tungsten electrode clip 200. To ensure the positional stability of the tungsten electrode 400, the inner diameter of the tungsten electrode clip 200 can be slightly larger than the outer diameter of the tungsten electrode 400 to facilitate insertion and fixation by a subsequently fitted air plug 300.

[0035] Furthermore, a gas plug 300 is threaded into the outer surface of the tungsten electrode clamp 200 near the bottom end. The gas plug 300, in conjunction with the tungsten electrode clamp 200, locks and secures the tungsten electrode 400. The gas plug 300 is a component used to assist in securing the tungsten electrode 400 and guide gas flow. It is threaded into the outer surface of the tungsten electrode clamp 200, working together with the clamp to lock and secure the tungsten electrode 400.

[0036] The air plug 300 is designed to connect to the outer surface of the tungsten electrode clamp 200 near its bottom. Specifically, the air plug 300 may have internal threads, while the corresponding position on the outer surface of the tungsten electrode clamp 200 has external threads. The air plug 300 is fixed to the tungsten electrode clamp 200 by screwing it in. The cooperation between the air plug 300 and the tungsten electrode clamp 200 allows for the locking and fixing of the tungsten electrode 400. For example, when the air plug 300 is screwed into the tungsten electrode clamp 200, the inner wall of the air plug 300 can apply radial pressure to the outer wall of the tungsten electrode 400, or a conical structure can push the tungsten electrode 400 against the inner wall of the tungsten electrode clamp 200, thereby achieving stability in clamping the tungsten electrode 400.

[0037] Furthermore, the top of the gas plug 300 is provided with an annular groove 310. The annular groove 310 is ring-shaped and can allow argon gas that enters through the air inlet 130 to enter the inner groove 210 through the air outlet 150, and then flow out through the air vent 220 into the annular groove 310.

[0038] Specifically, the annular groove 310 serves as the first-stage buffer and distribution space for gas entering the gas plug 300. Specifically, the gas discharged from the outlet 150 of the upper water-cooling block 110 first collects in the annular groove 310. The annular structure of the groove 310 allows the gas to form a relatively uniform pressure and flow field at the top of the gas plug 300 before entering subsequent anti-clogging components. The depth and width of the annular groove 310 can be designed according to the required flow rate and pressure loss; for example, a rectangular, U-shaped, or semi-circular cross-section can be used to optimize the gas flow characteristics. The annular groove 310 is formed integrally on the top of the gas plug 300 or through machining, ensuring its structural stability and sealing performance.

[0039] Meanwhile, an inner groove 210 is formed above the inner surface of the tungsten electrode clip 200. This inner groove 210 can be an annular groove, the depth and width of which are designed to accommodate a certain amount of gas, serving as a buffer and initial distribution space for the gas after it enters from the vent hole 220. The inner groove 210 is a cavity formed above the inner surface of the tungsten electrode clip 200, serving as an intermediate area for gas flow and communicating with the vent hole 220 to achieve initial gas collection and distribution. Multiple vent holes 220 are symmetrically formed along the annular outer wall of the outer surface of the tungsten electrode clip 200. These vent holes 220 are holes that penetrate the annular outer wall of the outer surface of the tungsten electrode clip 200, used to introduce external gas into the inner groove 210, serving as a channel for gas to enter the interior of the assembly.

[0040] These air intake holes 220 can be circular, elliptical, or rectangular, and are evenly distributed on the annular outer wall of the tungsten electrode clamp 200. The number and diameter of the air intake holes 220 can be designed according to the required gas flow rate and the uniformity of distribution.

[0041] The vent 220 and the inner groove 210 are interconnected. This means that gas entering the vent 220 from the outside can flow directly into the inner groove 210. This connection ensures a smooth gas flow path from the outside of the tungsten electrode clamp 200 into its interior.

[0042] Specifically, such as Figures 2-15 As shown, an anti-clogging component is provided through the surface of the gas plug 300. The anti-clogging component is used to uniformly distribute the gas, replacing the traditional airflow that passes through the inner surface of the gas plug 300, thus preventing gas path blockage. The anti-clogging component is a structure set on the surface of the gas plug 300. Its main function is to optimize the gas flow path, prevent gas blockage during flow, and ensure uniform gas diffusion, thereby improving the gas protection effect.

[0043] Specifically, as one implementation, the anti-clogging component may include a series of micropores or mesh structures integrated on or inside the gas plug 300 to disperse the incoming gas into finer gas streams, thereby achieving a more uniform distribution when the gas leaves the gas plug 300. For example, the surface of the gas plug 300 may be processed into a structure with multiple microchannels, or a porous material layer may be embedded to force the gas through these channels or pores, thereby achieving the purpose of uniform gas distribution.

[0044] Ultimately, the gas guiding assembly of the TIG gas shielded welding torch proposed in this embodiment, through the symmetrical arrangement of the upper water-cooling block 110 and the lower water-cooling block 500 forming a "ceramic gas shield," and the threaded connection between the upper water-cooling block 110 and the tungsten electrode clamp 200, effectively increases the heat dissipation contact area, thereby reducing the operating temperature of the tungsten electrode and the tungsten electrode clamp 200 and extending the service life of the components. Simultaneously, the design connecting the inner groove 210 inside the tungsten electrode clamp 200 with multiple gas vents 220, combined with the anti-clogging component on the gas plug 300, optimizes the argon gas flow path, ensuring that the gas can smoothly and evenly cover the welding area, significantly improving the gas protection effect and avoiding problems such as tungsten electrode oxidation and weld quality degradation.

[0045] like Figures 1 to 9 As shown, this is the first embodiment of the anti-blocking component. Specifically, the specific structure of the first embodiment of the anti-blocking component includes vertical holes 600. The vertical holes 600 are multiple holes that are uniformly opened through the inner surface of the air plug 300, and the air plug 300 and the inner cavity of the annular groove 310 are interconnected. Specifically, multiple vertical holes 600 are arranged in a ring symmetrically and vertically on the surface of the gas plug 300, so that the argon gas entering the annular groove 310 eventually passes through the multiple vertical holes 600 and enters the lower water-cooling block 500, and is discharged through the bottom opening of the lower water-cooling block 500. The argon gas protects the surface of the tungsten electrode 400, and the argon gas discharged through the lower water-cooling block 500 can protect the welding wire from contact with oxygen during the melting and solidification process. In other words, during the solidification process, argon gas is used to protect it and isolate it from oxygen.

[0046] Specifically, the vertical holes 600 are key structures for homogenizing the gas as it passes through the gas plug 300. As independent, narrow channels, they divert and guide the gas entering the gas plug 300. By providing multiple vertical holes 600, the resistance to gas flow is increased, causing a more uniform pressure distribution within the gas plug 300 before the gas enters these channels, thus ensuring similar flow rate and velocity when the gas exits from each vertical hole 600. The diameter, length, and number of these vertical holes 600 can be designed according to the required flow rate and uniformity requirements. For example, micron-sized apertures can be used to achieve finer airflow control, or tapered channels can be used to reduce pressure drop and guide airflow. Meanwhile, "uniformly penetrating the inner surface of the plug 300" means that these vertical holes 600 are evenly spaced and symmetrically distributed on the inner surface of the plug 300, and completely penetrate the wall thickness of the plug 300. This uniform distribution is the basis for achieving gas homogenization, ensuring that the gas exits the plug 300 from multiple points under similar conditions, avoiding localized airflow concentration or deflection. For example, these vertical holes 600 can be arranged in a ring array along the inner wall of the plug 300.

[0047] Furthermore, the gas plug 300 and the annular groove 310 are interconnected. The inner cavity of the gas plug 300 is a collection space for gas after it enters through the vent 220, while the annular groove 310 is an annular collection or distribution channel. Vertical holes 600 connect the inner cavity of the gas plug 300 to the annular groove 310. This means that gas first enters the inner cavity of the gas plug 300, then enters the annular groove 310 through the evenly distributed vertical holes 600, and then flows from the annular groove 310 to the welding torch outlet. This connection ensures that after the gas undergoes homogenization through the vertical holes 600, it can collect in the annular groove 310, providing a buffer and redistribution space for subsequent stable output, further improving gas uniformity.

[0048] like Figures 10 to 12 As shown, this is a second embodiment of the anti-blocking component. Specifically, the structure of the second embodiment of the anti-blocking component includes a spiral hole 710, wherein the spiral hole 710 is spirally opened on the inner surface of the air plug 300, and multiple upper holes 700 are opened through the top of the air plug 300 and the bottom of the inner cavity of the annular groove 310. The bottom of the inner cavity of the upper hole 700 is connected to the input end of the spiral hole 710.

[0049] Specifically, the spiral orifice 710 is a channel with a specific spiral geometry, whose core function is to guide gas flow along a spiral path. This spiral path significantly increases the gas flow distance within the anti-clogging component and introduces continuous disturbance, thereby promoting thorough mixing and homogenization of the gas. In this way, the inertia of straight gas flow can be effectively broken, reducing local airflow velocity differences and thus improving the uniformity of the gas as it exits the anti-clogging component. The spiral orifice 710 can be manufactured using high-precision CNC machining techniques, such as milling or EDM, or 3D printed in conjunction with the gas plug 300, to ensure that its geometric dimensions and surface finish meet design requirements. Its spiral angle, pitch, and orifice diameter can be optimized according to the required gas flow rate, pressure, and desired homogenization effect; for example, it can be designed with structures having different spiral directions or multi-head spirals.

[0050] The spiral hole 710 is spirally formed on the inner surface of the gas plug 300, which clarifies its location and shape. Positioning it on the inner surface of the gas plug 300 allows gas to be directly guided and homogenized through the spiral hole 710 after entering the gas plug 300. This internal arrangement not only fully utilizes the internal space of the gas plug 300 but also effectively protects the spiral hole 710 from physical damage or contamination from the external environment. During processing, it is necessary to ensure that the inner wall of the spiral hole 710 is smooth to minimize gas flow resistance and prevent impurities from accumulating in the spiral channel, thereby ensuring smooth gas flow and homogenization.

[0051] Meanwhile, multiple upper holes 700 are provided at the top of the gas plug 300 and at the bottom of the annular groove 310. These upper holes 700 serve as inlet channels for gas to enter the spiral hole 710 from the annular groove 310. Positioning them at the top of the gas plug 300 and at the bottom of the annular groove 310 ensures that the gas undergoes initial buffering and diversion within the annular groove 310 before entering the spiral hole 710 of the anti-clogging component. The design of multiple upper holes 700 helps to uniformly introduce gas from the annular groove 310 into the spiral hole 710, avoiding airflow concentration or imbalance that might occur with a single inlet. The diameter, number, and distribution of the upper holes 700 can be precisely designed according to the overall gas flow rate and the required homogenization effect, typically achieved through drilling or laser perforation.

[0052] Specifically, the upper hole 700 is vertically formed on the surface of the air plug 300, and there are multiple upper holes 700. The multiple upper holes 700 are evenly distributed on the surface of the air plug 300 and located on one side of the annular groove 310.

[0053] In this way, argon gas enters the upper hole 700 through the annular groove 310 and flows into the lower water-cooled block 500 through the spiral hole 710, and finally exits downward from the opening of the lower water-cooled block 500. During this process, the argon gas entering the lower water-cooled block 500 can increase its flow rate under the action of the spiral groove cavity of the lower water-cooled block 500, so that it can be discharged quickly.

[0054] like Figures 13 to 15 As shown, this is a third embodiment of the anti-clogging component. Specifically, the structure of the third embodiment of the anti-clogging component includes an annular hole 800, which is annularly formed on the surface of the air plug 300 and located on one side of the annular groove 310. Specifically, as shown... Figure 14 As shown, the cross-sectional shape of the annular hole 800 is conical.

[0055] The annular orifice 800 is a continuous, ring-shaped opening located on the surface of the gas plug 300 and on one side of the annular groove 310. This annular structure ensures that the gas is uniformly processed along the entire circumference when entering or leaving the annular groove 310, avoiding localized airflow concentration or insufficiency. The cross-sectional shape of the annular orifice 800 is conical, meaning that its cross-sectional area gradually changes along its depth. The conical design can be used to accelerate or decelerate the gas flow rate and effectively guide and diffuse the airflow, depending on specific needs. For example, a converging cone can accelerate the airflow, while a diverging cone helps to expand and homogenize the airflow, thereby reducing turbulence and helping to balance the gas pressure in different areas, providing a more stable and uniform initial condition for subsequent gas distribution.

[0056] An elongated hole 810 is formed on the surface of the gas plug 300 at the bottom of the annular hole 800. Multiple elongated holes 810 are vertically oriented and evenly distributed on the inner surface of the gas plug 300. After initial guidance through the annular hole 800, gas further enters these elongated holes 810. The elongated holes 810 serve as secondary gas outlets, enabling more precise control of gas flow. These elongated holes 810 can be formed on the surface of the gas plug 300 using precision machining processes such as laser cutting or electrical discharge machining. Their specific dimensions and shapes can be optimized according to the required gas flow rate and distribution characteristics.

[0057] An arc-shaped groove 820 is formed at the bottom of the inner surface of the gas plug 300, located at the bottom of the elongated hole 810. The cross-section of the arc-shaped groove 820 is fan-shaped. The diameter of the elongated hole 810 is smaller than the diameter of the arc-shaped groove 820. The main function of the arc-shaped groove 820 is to serve as a transition structure for gas after it flows out of the elongated hole 810, guiding the gas to smoothly turn from the vertical direction and promoting uniform gas diffusion. The fan-shaped cross-section design helps reduce airflow resistance, avoids turbulence caused by sharp turns, and allows the gas to achieve a more uniform distribution before entering the welding area. The arc-shaped groove 820 can be formed at the bottom of the inner surface of the gas plug 300 through precision machining, such as CNC milling or EDM. Its fan-shaped cross-section can be designed with a specific radius of curvature and unfolding angle to optimize the hydrodynamic characteristics of the gas. For example, the center of the fan can be located on the central axis of the elongated hole 810, and the arc edge of the fan can face the direction of gas outflow to achieve the best guiding effect. The number of arc-shaped grooves 820 should correspond to the number of elongated holes 810, with one arc-shaped groove 820 corresponding to the bottom of each elongated hole 810.

[0058] This allows the inner cavities of the annular hole 800, the elongated hole 810, and the arc-shaped groove 820 to be interconnected. Argon gas entering the annular groove 310 flows into the annular hole 800, is pressurized through the elongated hole 810, and finally exits through the arc-shaped groove 820.

[0059] Specifically, in order to achieve the above objectives, the present invention employs the following technical steps for the structures including the tungsten electrode clip 200, the gas plug 300, the tungsten electrode 400, the upper water-cooling block 110, and the lower water-cooling block 500: S1, the tungsten electrode clip 200 is connected to the upper water cooling block 110 by means of a thread.

[0060] S2. The tungsten electrode 400 passes through the tungsten electrode clamp 200, and one end of it is inserted into the positioning groove 140.

[0061] S3. The air plug 300 is connected to the tungsten electrode clamp 200 by a thread, and the tungsten electrode 400 is clamped by the two cut surfaces of the air plug 300 and the tungsten electrode clamp 200.

[0062] S4. A sealing element 160 is installed on the upper water cooling block 110. The surface of the air plug 300 is connected to the lower water cooling block 500 by threads. The connection between the lower water cooling block 500 and the upper water cooling block 110 is sealed by the sealing element 160.

[0063] Specifically, the working principle of the gas guiding assembly of this TIG gas shielded welding torch is as follows: The mounting base 100 is connected to the torch body, and the sealing rubber gasket in its sealing groove 120 seals the connection. Argon gas enters through the air inlet 130 of the mounting base 100, flows into the inner groove 210 of the tungsten electrode clamp 200 through the air outlet 150 of the upper water-cooled block 110, and then enters the annular groove 310 of the gas plug 300 through the air guide hole 220. Subsequently, the gas is uniformly distributed by the anti-blocking component to prevent gas path blockage, and finally flows into the upper water-cooled block 110. The upper water-cooling block 110 and the lower water-cooling block 500 together form a "ceramic gas shield" and discharge the gas. The upper water-cooling block 110 and the lower water-cooling block 500 are sealed by the sealing element 160. The tungsten electrode clamp 200 and the gas plug 300 cooperate to lock and fix the tungsten electrode 400. The positioning groove 140 guides the assembly of the tungsten electrode 400. The copper material of the upper water-cooling block 110, the lower water-cooling block 500, the tungsten electrode clamp 200 and the gas plug 300 ensures heat dissipation. The discharged argon gas protects the tungsten electrode 400 and the welding wire during the melting and solidification process to avoid oxidation.

[0064] It should be noted that the specific models and specifications of the electrical components used in this solution need to be selected and determined based on the actual specifications of the device. The specific selection and calculation methods adopt existing technologies in this field, so they will not be elaborated in detail here.

[0065] The power supply and operating principles of the electrical components used in this solution are clear to those skilled in the art, and will not be described in detail here.

[0066] The above are merely embodiments of this application and are not intended to limit the scope of protection of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application. It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0067] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A gas guiding assembly for a TIG gas shielded welding torch, characterized in that, include: The upper water-cooling block (110) and the lower water-cooling block (500) are symmetrically arranged, and together they form a "ceramic air shroud". The bottom of the upper water-cooling block (110) is threaded with a tungsten electrode clamp (200), and a tungsten electrode (400) is installed through the tungsten electrode clamp (200). An air plug (300) is screwed into the outer surface of the tungsten electrode clamp (200) near the bottom. The air plug (300) and the tungsten electrode clamp (200) are used to lock and fix the tungsten electrode (400). Meanwhile, an inner groove (210) is provided above the inner surface of the tungsten electrode clip (200), and multiple air inlets (220) are symmetrically provided along the outer surface of the tungsten electrode clip (200) on its annular outer wall. The air inlets (220) and the inner groove (210) are connected to each other. An anti-blocking component is provided through the surface of the gas plug (300) for uniform gas distribution.

2. The gas guiding assembly of the TIG gas shielded welding torch according to claim 1, characterized in that, The bottom of the upper water-cooled block (110) is provided with a sealing groove (170), in which a sealing element (160) is fitted and installed.

3. The gas guiding assembly of the TIG gas shielded welding torch according to claim 2, characterized in that, The top of the upper water-cooled block (110) is connected to a mounting base (100), which can be used to connect to the gun body during welding work. An air inlet (130) is provided through the top of the inner surface of the mounting base (100).

4. The gas guiding assembly of the TIG gas shielded welding torch according to claim 3, characterized in that, A positioning groove (140) is provided on the top of the inner surface of the upper water-cooled block (110) and on one side of the air inlet (130), while an air outlet (150) is provided on the bottom of the inner surface of the upper water-cooled block (110) and at the bottom of the positioning groove (140).

5. The gas guiding assembly of the TIG gas shielded welding torch according to claim 4, characterized in that, The top of the air plug (300) is provided with an annular groove (310), which is ring-shaped.

6. The gas guiding assembly of the TIG gas shielded welding torch according to claim 5, characterized in that, The anti-clogging component includes vertical holes (600), which are multiple holes that are uniformly opened through the inner surface of the air plug (300), and the air plug (300) and the inner cavity of the annular groove (310) are interconnected.

7. The gas guiding assembly of the TIG gas shielded welding torch according to claim 5, characterized in that, The anti-clogging component includes a spiral hole (710), wherein the spiral hole (710) is spirally opened on the inner surface of the air plug (300), and multiple upper holes (700) are opened through the top of the air plug (300) and the bottom of the inner cavity of the annular groove (310), and the bottom of the inner cavity of the upper hole (700) is connected to the input end of the spiral hole (710).

8. The gas guiding assembly of the TIG gas shielded welding torch according to claim 5, characterized in that, The anti-clogging component includes an annular hole (800), which is annularly opened on the surface of the air plug (300) and located on one side of the annular groove (310). The cross-sectional shape of the annular hole (800) is conical.

9. The gas guiding assembly of the TIG gas shielded welding torch according to claim 8, characterized in that, The air plug (300) has an elongated hole (810) on its surface and at the bottom of the annular hole (800), and the elongated hole (810) is vertical and there are multiple elongated holes (810).

10. The gas guiding assembly of the TIG gas shielded welding torch according to claim 9, characterized in that, An arc-shaped groove (820) is provided at the bottom of the inner surface of the air plug (300) and at the bottom of the elongated hole (810), and the cross-section of the arc-shaped groove (820) is fan-shaped.

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