The neck of a robotic air-cooled welding torch

Abstract

This utility model relates to the technical field of gun necks for robotic air-cooled welding guns, and discloses a gun neck for a robotic air-cooled welding gun, including an inner gun neck tube. A nozzle is fixedly connected to the front end of the inner gun neck tube, and an outer gun neck tube is fixedly connected to the outer wall of the inner gun neck tube. An anti-spatter assembly is provided on the outside of the nozzle. The anti-spatter assembly includes a sleeve, a connecting block, and a fixing cylinder. A slider is fixedly connected to the outer wall of the nozzle. Through the anti-spatter assembly, the inner wall of the sleeve fits against the outer wall of the nozzle, blocking welding spatter and preventing it from adhering to the nozzle surface and causing blockage. This ensures the stability of the welding arc and shielding gas, improves welding quality, and allows for quick disassembly of the sleeve along the slider and slide rail. This facilitates cleaning and replacement, reduces maintenance time and downtime.

Description

Technical Field

[0001] This utility model relates to the technical field of gun neck for robotic air-cooled welding guns, and particularly to a gun neck for a robotic air-cooled welding gun. Background Technology

[0002] In modern manufacturing, robotic welding technology is widely used in automobile manufacturing, aerospace, and machining due to its high efficiency and precision. As the core component for welding operations, the performance of the robotic air-cooled welding torch directly affects welding quality and production efficiency. However, there are many problems with the existing air-cooled welding torch neck that urgently need to be solved.

[0003] The applicant discovered through a search that a Chinese patent discloses "a gun neck for a robotic air-cooled welding gun," with publication (announcement) number "CN217316339U." This patent mainly features a modular design with a locking fastener fixedly connected to the outer tube of the gun neck at the rear end and a locking nut installed on the fastener and connected to the cable. The nut can be loosened to separate the gun neck from the cable, allowing for individual replacement. It belongs to the same product family as the TBI series and is more convenient when used with TBI cables and other peripheral products such as anti-collision devices. However, this patent cannot effectively block the spatter generated during welding, prevent spatter from adhering to the nozzle surface, or facilitate quick disassembly of the sleeve. In actual use, spatter will continuously adhere to the nozzle surface, reducing the cross-sectional area of ​​the shielding gas outlet, resulting in a sudden increase in airflow velocity and turbulence that interferes with arc stability. If the sleeve uses a traditional threaded connection, it needs to be screwed on during disassembly, and the spatter slag can easily jam the threads. Therefore, we propose a gun neck for a robotic air-cooled welding gun. Utility Model Content

[0004] The purpose of this utility model is to provide a gun neck for a robotic air-cooled welding gun to solve the problems mentioned in the background art, such as the inability to effectively block spatter generated during welding, prevent spatter from adhering to the surface of the nozzle, and facilitate quick disassembly of the sleeve. In actual use, spatter will continuously adhere to the nozzle surface, which will reduce the cross-sectional area of ​​the shielding gas outlet, thereby causing a sudden increase in airflow velocity and forming turbulence that interferes with arc stability. If the sleeve adopts a traditional threaded connection, it needs to be screwed during disassembly, and the spatter slag is prone to jamming the threads.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a gun neck for a robotic air-cooled welding gun, comprising an inner gun neck tube, a nozzle fixedly connected to the front end of the inner gun neck tube, an outer gun neck tube fixedly connected to the outer wall of the inner gun neck tube, an anti-spatter assembly provided on the outside of the nozzle, the anti-spatter assembly comprising a sleeve, a connecting block, and a fixing cylinder, a slider fixedly connected to the outer wall of the nozzle, a sliding groove provided on the inner wall of the sleeve, the slider slidably connected to the sliding groove, and a limit block and a pull block connected to the fixing cylinder through an elastic element.

[0006] As a preferred embodiment, the inner wall of the sleeve is fitted to the outer wall of the nozzle, the connecting block is fixedly connected to the outer wall of the sleeve, a limit hole is provided on the outer wall of the connecting block, and the fixing cylinder is fixedly installed on the outer wall of the nozzle towards the rear.

[0007] As a preferred embodiment, one end of the elastic element is fixedly connected to the inner bottom wall of the fixed cylinder, the other end of the elastic element is fixedly connected to the surface of the limiting block, and the outer wall of the limiting block is slidably connected to the inner wall of the fixed cylinder.

[0008] As a preferred embodiment, a groove is provided on the outer wall of the fixed cylinder, the pull block is fixedly connected to the lower surface of the limiting block, the pull block is slidably connected to the inner wall of the groove, and the limiting block is adapted to the limiting hole.

[0009] As a preferred embodiment, the outer side of the gun neck tube is provided with an anti-collision buffer assembly, which includes a silicone rubber sleeve, a spring steel sheet and bolts. The silicone rubber sleeve is fixedly installed in the center of the outer wall of the gun neck tube, and multiple sets of circumferentially distributed mounting grooves are formed on the inner wall of the silicone rubber sleeve.

[0010] As a preferred embodiment, multiple sets of spring steel sheets are provided, and the multiple sets of spring steel sheets are respectively fixedly installed inside the multiple sets of mounting grooves. Two sets of fixing rings are provided on the outer wall of the silicone rubber sheath. Both sets of fixing rings are in contact with the outer wall of the silicone rubber sheath, and the two sets of fixing rings are connected by bolt threads.

[0011] The technical effects and advantages of this utility model are as follows:

[0012] 1. With the anti-spatter component, the inner wall of the sleeve fits tightly against the outer wall of the nozzle, effectively blocking the spatter generated during welding and preventing it from adhering to the nozzle surface, reducing the risk of clogging. This ensures the stability of the welding arc and the uniform flow of shielding gas, improving welding quality. When a large amount of spatter adheres to the sleeve surface and needs to be cleaned, the operator only needs to pull the pull block. The pull block drives the limit block to compress the elastic element, causing the limit block to disengage from the limit hole on the connecting block. At this time, the sleeve is unlocked and can be quickly disassembled along the sliding track of the slider and the groove for cleaning or replacement. This design does not require complicated tools, greatly shortens maintenance time, improves the efficiency of the robot welding gun, reduces downtime, and takes into account both spatter protection and quick disassembly.

[0013] 2. Through the designed anti-collision buffer component, when the silicone rubber sleeve comes into direct contact with the impacting object, it deforms first due to its own elasticity to absorb part of the impact force. Multiple sets of spring steel plates are embedded in the mounting groove and bend synchronously when the silicone rubber sleeve is compressed, converting the remaining impact force into elastic potential energy. The two work together to reduce the impact force and prevent the gun neck outer tube from being directly deformed by force. At the same time, two sets of fixing rings are tightly fixed to the silicone rubber sleeve by bolts, which can ensure that the anti-collision buffer component does not shift or fall off. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a schematic diagram showing the overall structure of this utility model broken down.

[0016] Figure 3 This is a schematic diagram of the overall partial structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the anti-splash component of this utility model.

[0018] Figure 5 for Figure 3 A partial structural breakdown diagram;

[0019] Figure 6 This is a schematic diagram of the anti-collision buffer component of this utility model.

[0020] In the diagram: 1. Inner tube of the gun neck; 2. Nozzle; 3. Outer tube of the gun neck; 4. Anti-splash assembly; 401. Slider; 402. Sleeve; 403. Slide groove; 404. Connecting block; 405. Limiting hole; 406. Fixing cylinder; 407. Elastic element; 408. Limiting block; 409. Pulling block; 410. Groove; 5. Anti-collision buffer assembly; 501. Silicone rubber sleeve; 502. Spring steel sheet; 503. Fixing ring; 504. Bolt. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see the appendix Figure 1 Appendix Figure 3 - Appendix Figure 5A robotic air-cooled welding torch neck includes an inner neck tube 1, with a nozzle 2 fixedly connected to the front end of the inner neck tube 1. An outer neck tube 3 is fixedly connected to the outer wall of the inner neck tube 1. An anti-spatter assembly 4 is provided on the outside of the nozzle 2. The anti-spatter assembly 4 includes a sleeve 402, a connecting block 404, and a fixing cylinder 406. A slider 401 is fixedly connected to the outer wall of the nozzle 2. A groove 403 is formed on the inner wall of the sleeve 402, and the slider 401 is slidably connected to the groove 403. The fixing cylinder 406 is connected to a limit block 408 and a pull block 409 through an elastic element 407. The inner wall of the sleeve 402 fits against the outer wall of the nozzle 2. 404 is fixedly connected to the outer wall of sleeve 402. A limiting hole 405 is opened on the outer wall of connecting block 404. Fixed cylinder 406 is fixedly installed on the outer wall of nozzle 2 at the rear. One end of elastic member 407 is fixedly connected to the inner bottom wall of fixed cylinder 406. The other end of elastic member 407 is fixedly connected to the surface of limiting block 408. The outer wall of limiting block 408 is slidably connected to the inner wall of fixed cylinder 406. A groove 410 is opened on the outer wall of fixed cylinder 406. Pull block 409 is fixedly connected to the lower surface of limiting block 408. Pull block 409 is slidably connected to the inner wall of groove 410. Limiting block 408 is adapted to limiting hole 405.

[0023] Sleeve 402 is a protective layer that directly contacts the splashes. It is usually made of high-temperature resistant and wear-resistant tungsten carbide. Slider 401 and slide groove 403 work together to ensure that sleeve 402 is coaxial with nozzle 2 during installation, avoiding misalignment that could disrupt the protective gas layer. This sliding fit design can shorten the disassembly time of sleeve 402.

[0024] Specifically, through the anti-spatter component 4, the inner wall of the sleeve 402 and the outer wall of the nozzle 2 are fitted together to form a protective layer, blocking welding spatter and preventing it from adhering to the nozzle 2, thus reducing the risk of blockage. This structure ensures stable welding arc and uniform shielding gas flow, improving welding quality. When spatter accumulates on the surface of the sleeve 402 and needs to be cleaned, the pull block 409 is pulled, which drives the limit block 408 to compress the elastic element 407, causing the limit block 408 to disengage from the limit hole 405 of the connecting block 404, releasing the sleeve 402 from locking. The sleeve 402 can then slide along the slider 401 and the groove 403 for disassembly, cleaning, or replacement. This design requires no tools, shortens maintenance time, improves the efficiency of welding torch use, reduces downtime, and achieves spatter protection and quick disassembly functions.

[0025] Please see the appendix Figure 1 and appendix Figure 6The outer tube 3 of the gun neck is provided with an anti-collision buffer assembly 5. The anti-collision buffer assembly 5 includes a silicone rubber sleeve 501, a spring steel plate 502, and a bolt 504. The silicone rubber sleeve 501 is fixedly installed in the center of the outer wall of the gun neck 3. Multiple sets of circumferentially distributed mounting grooves are opened on the inner wall of the silicone rubber sleeve 501. Multiple sets of spring steel plates 502 are also provided. The multiple sets of spring steel plates 502 are fixedly installed in the interior of the multiple sets of mounting grooves. Two sets of fixing rings 503 are provided on the outer wall of the silicone rubber sleeve 501. Both sets of fixing rings 503 fit against the outer wall of the silicone rubber sleeve 501. The two sets of fixing rings 503 are connected by bolts 504.

[0026] During a collision, the silicone rubber sleeve 501 absorbs energy through its own deformation, which reduces the transmission of impact force to the gun neck outer tube 3. Its smooth and wear-resistant outer surface can prevent scratches on the gun neck outer tube 3 during a collision.

[0027] Specifically, through the anti-collision buffer component 5, the silicone rubber sleeve 501 undergoes elastic deformation when it comes into contact with the colliding object, absorbing part of the impact force. The internal spring steel sheet 502 is embedded in the mounting groove and bends synchronously when the silicone rubber sleeve 501 is compressed, converting the remaining impact force into elastic potential energy. The two work together to reduce the collision force and prevent the gun neck outer tube 3 from being deformed by force. Two sets of fixing rings 503 fix the silicone rubber sleeve 501 with bolts 504 to ensure that the anti-collision buffer component 5 does not shift or fall off during the collision.

[0028] The working principle of this utility model is as follows: This utility model is a gun neck for a robotic air-cooled welding gun. First, the operator can slide the groove 403 on the inner wall of the sleeve 402 axially along the slider 401 on the outer wall of the nozzle 2. When it slides to the position of the limiting block 408, the operator can manually pull the pull block 409. The limiting block 408 and the elastic element 407 will move inward inside the fixed cylinder 406. Then, the operator continues to push the sleeve 402. When the sleeve 402 is in place, the limiting hole 405 on the connecting block 404 aligns with the limiting block 408 inside the fixed cylinder 406. The operator then releases the pulling force. At this time, the elastic element 407 pushes the limiting block 405 into the limiting hole 408, forming a mechanical lock. The sleeve 402 needs to be moved from the nozzle. 2. When disassembling the upper part, the staff pulls the pull block 409 again, which drives the limit block 408 to compress the elastic element 407 and disengage it from the limit hole 405. This releases the locking state of the sleeve 402. Then, the sleeve 402 is pulled out along the track axis of the slider 401 and the slide groove 403. Secondly, during the collision, the silicone rubber sleeve 501 will first be elastically compressed. Its internal spring steel sheet 502 is embedded in the mounting groove and bends synchronously. The two reduce the impact force through the mechanism of flexible buffering and rigid rebound. At the same time, the staff can manually press the two sets of fixing rings 503 tightly against the outer wall of the silicone rubber sleeve 501, and then clamp the two sets of fixing rings 503 on the outer wall of the silicone rubber sleeve 501 with bolts 504 to prevent the components from shifting during the collision.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A neck of a robotic air-cooled welding torch, comprising a neck inner tube (1), wherein a nozzle (2) is fixedly connected to the front end of the neck inner tube (1), and a neck outer tube (3) is fixedly connected to the outer wall of the neck inner tube (1), characterized in that: The nozzle (2) is provided with an anti-splash assembly (4) on its exterior. The anti-splash assembly (4) includes a sleeve (402), a connecting block (404), and a fixing cylinder (406). A slider (401) is fixedly connected to the outer wall of the nozzle (2). A groove (403) is provided on the inner wall of the sleeve (402). The slider (401) is slidably connected to the groove (403). The fixing cylinder (406) is connected to a limit block (408) and a pull block (409) through an elastic element (407).

2. The neck of a robotic air-cooled welding torch according to claim 1, characterized in that: The inner wall of the sleeve (402) is in contact with the outer wall of the nozzle (2), the connecting block (404) is fixedly connected to the outer wall of the sleeve (402), a limit hole (405) is opened on the outer wall of the connecting block (404), and the fixing cylinder (406) is fixedly installed on the rear of the outer wall of the nozzle (2).

3. The neck of a robotic air-cooled welding torch according to claim 2, characterized in that: One end of the elastic element (407) is fixedly connected to the inner bottom wall of the fixed cylinder (406), and the other end of the elastic element (407) is fixedly connected to the surface of the limiting block (408). The outer wall of the limiting block (408) is slidably connected to the inner wall of the fixed cylinder (406).

4. The neck of a robotic air-cooled welding torch according to claim 3, characterized in that: The outer wall of the fixed cylinder (406) is provided with a groove (410), the pull block (409) is fixedly connected to the lower surface of the limiting block (408), the pull block (409) is slidably connected to the inner wall of the groove (410), and the limiting block (408) is adapted to the limiting hole (405).

5. The neck of a robotic air-cooled welding torch according to claim 4, characterized in that: The gun neck outer tube (3) is provided with an anti-collision buffer assembly (5). The anti-collision buffer assembly (5) includes a silicone rubber sleeve (501), a spring steel sheet (502), and a bolt (504). The silicone rubber sleeve (501) is fixedly installed in the center of the outer wall of the gun neck outer tube (3). Multiple sets of circumferentially distributed mounting grooves are opened on the inner wall of the silicone rubber sleeve (501).

6. The neck of a robotic air-cooled welding torch according to claim 5, characterized in that: Multiple sets of spring steel sheets (502) are provided, and multiple sets of spring steel sheets (502) are fixedly installed inside multiple sets of mounting grooves. Two sets of fixing rings (503) are provided on the outer wall of the silicone rubber sheath (501). Both sets of fixing rings (503) are in contact with the outer wall of the silicone rubber sheath (501), and the two sets of fixing rings (503) are connected by bolts (504) threaded connection.

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