Welding robot

Abstract

The utility model provides a kind of welding robot, comprising: machine body, the position of machine body is movably arranged;Welding structure, it is arranged on machine body, and welding structure includes welding body, and cooling runner is arranged in welding body;Cooling assembly, cooling assembly includes transmission pipe fitting and connecting nipple, and intercommunication passage is arranged in connecting nipple, and connecting nipple is connected with transmission pipe fitting and welding body respectively, and cooling runner is communicated with transmission pipe fitting by intercommunication passage, to make cooling medium flow into cooling runner in order after transmission pipe fitting and intercommunication passage, and welding body is cooled;Wherein, at least part of connecting nipple is rotatably arranged along predetermined trajectory, and transmission pipe fitting is flexible piece.The present application solves the problem that the welding robot in the prior art changes constantly in the process of running, resulting in the problem of unsatisfactory cooling effect.

Description

Technical Field

[0001] This utility model relates to the field of welding robot technology, and more specifically, to a welding robot. Background Technology

[0002] In modern welding industry, welding robots are widely used in many fields such as automobile manufacturing, aerospace, and shipbuilding due to their high efficiency, high precision, and good stability. However, when welding robots perform high-load, continuous welding tasks, the cooling of the welding torch becomes one of the key factors affecting their performance and service life.

[0003] Because welding robots need to move constantly, the cooling system for the welding torch is difficult to adjust flexibly according to changes in the welding environment and welding speed. Most systems use air cooling or simple water cooling channels, which have limited cooling effect and cannot effectively handle the heat generated during high-intensity welding. This results in excessively high internal temperature of the welding torch, affecting the stability of the electrode and the quality of the weld. Utility Model Content

[0004] The main objective of this invention is to provide a welding robot that solves the problem of unsatisfactory cooling effect caused by the continuous change of position during operation in existing welding robots.

[0005] To achieve the above objectives, according to one aspect of the present invention, a welding robot is provided, comprising: a body, the body being movably positioned; a welding structure disposed on the body, the welding structure including a welding body, the welding body having a cooling channel disposed therein; and a cooling assembly including a transmission pipe and a connecting joint, the connecting joint having a communicating channel disposed therein, the connecting joint being connected to the transmission pipe and the welding body respectively, and the cooling channel communicating with the transmission pipe through the communicating channel, so that a cooling medium flows sequentially through the transmission pipe and the communicating channel and then flows into the cooling channel to cool the welding body; wherein at least a portion of the connecting joint is rotatably disposed along a predetermined trajectory, and the transmission pipe is a flexible component.

[0006] Furthermore, the connecting joint includes: a first connecting body connected to a welding body, wherein a rotating cavity is provided within the first connecting body, and at least a portion of the inner wall surface of the rotating cavity is a first arc-shaped surface; a second connecting body disposed within the rotating cavity, wherein at least a portion of the outer surface of the second connecting body is a second arc-shaped surface, and the second arc-shaped surface is in contact with the first arc-shaped surface, so that the second connecting body is rotatably disposed relative to the first connecting body, and a communicating channel is disposed within the second connecting body.

[0007] Furthermore, the connecting joint also includes: a first sealing component disposed between the first connecting body and the second connecting body, at least a portion of the first sealing component being elastically disposed, and the first connecting body and the second connecting body respectively fitting against the first sealing component.

[0008] Furthermore, the first connecting body is provided with a first through opening, and the connecting connector further includes: an extension body, which is disposed on the second connecting body, at least a portion of the extension body passes through the first through opening into the cooling channel, the extension body is clearance-fitted with the first through opening, and a transition channel communicating with the connecting channel is provided in the extension body.

[0009] Furthermore, the connecting joint also includes a second sealing component disposed between the first connecting body and the welding body, wherein the second sealing component is press-fitted with the first connecting body and the welding body respectively.

[0010] Furthermore, the welding body is provided with external threads, and the connecting joint also includes: a locking body, which is disposed on the first connecting body, the locking body is provided with internal threads, and the locking body is threadedly connected to the welding body.

[0011] Furthermore, the cooling assembly also includes a support member, which is inserted inside the transmission pipe and fits against the pipe wall of the transmission pipe. The support member is an elastic member.

[0012] Furthermore, the welding structure also includes a welding joint, which is inserted into the welding body. The cooling channel includes: a first channel, which is disposed in the welding body and located on the first side of the welding joint, and extends along the axial direction of the welding body; and a second channel, which is disposed in the welding body and extends along the axial direction of the welding body, located on the second side of the welding joint, and connected to the liquid outlet end of the first channel. The cooling medium flows through the first channel and the second channel in sequence and is then discharged from the welding body.

[0013] Furthermore, the connecting joint includes a first connecting joint and a second connecting joint, and the welding structure further includes: a first protruding body disposed on the welding body, the first protruding body having a liquid inlet channel communicating with a first flow channel, and the first connecting joint being connected to the first protruding body; a second protruding body disposed on the welding body, the second protruding body having a liquid outlet channel communicating with a second flow channel, and the second connecting joint being connected to the second protruding body; wherein, the first protruding body and the second protruding body are respectively located at the end of the welding body away from the welding end.

[0014] Furthermore, the welding structure also includes: a welding joint, which passes through the welding body; a clamping component, which is inserted into the welding body, the clamping component including multiple jaws, the multiple jaws being arranged around the welding joint; and a fixing member, which is sleeved on the clamping component and connected to the welding body, the fixing member causing each jaw to clamp onto the welding joint.

[0015] The welding robot provided in this application, utilizing the technical solution of this utility model, includes a body, a welding structure, and a cooling assembly. The welding structure is mounted on the body and includes a welding body with a cooling channel within it. The cooling assembly includes a transmission pipe and a connecting joint. The connecting joint has a communicating channel and is connected to both the transmission pipe and the welding body. The cooling channel communicates with the transmission pipe through the communicating channel, allowing the cooling medium to flow sequentially through the transmission pipe and the communicating channel before entering the cooling channel to cool the welding body. At least a portion of the connecting joint is rotatably mounted along a predetermined trajectory, and the transmission pipe is a flexible component. The transmission pipe and connecting joint in the cooling assembly are designed to be tightly connected to the welding body, ensuring that the cooling medium can flow rapidly and directly into the cooling channel for efficient cooling of the electrode portion. The optimized layout of the cooling channels enables the cooling medium to circulate rapidly within the welding body, quickly removing the heat generated during welding and significantly improving cooling efficiency. This prevents weld quality degradation and electrode wear caused by electrode overheating. Simultaneously, the rotatable nature of the connecting joints, combined with the flexible design of the transmission pipes, allows the cooling system to maintain a continuous supply of cooling medium even during multi-axis movements and posture changes by the welding robot, unaffected by the welding torch's posture. This design greatly enhances the flexibility and adaptability of the welding torch in complex welding tasks, allowing the operator or robot control system to freely adjust the torch angle without worrying about cooling system failure. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0017] Figure 1 A structural schematic diagram of an embodiment of the welding robot according to the present invention is shown;

[0018] Figure 2 A schematic diagram of the welding structure in the welding robot according to the present invention is shown;

[0019] Figure 3 A cross-sectional view of the welding structure in the welding robot according to the present invention is shown;

[0020] Figure 4 A schematic diagram of the welding body in the welding robot according to the present invention is shown;

[0021] Figure 5 It shows Figure 4 Sectional view of plane AA;

[0022] Figure 6 It shows Figure 5 Sectional view of the C-plane;

[0023] Figure 7 A schematic diagram of the structure of a first embodiment of the welding robot according to the present invention, showing the cooperation between the connecting joint and the welding body;

[0024] Figure 8 A schematic diagram of the structure of a first embodiment of the cooling assembly in a welding robot according to the present invention is shown;

[0025] Figure 9 A schematic diagram showing the cooperation of the first connecting body, the second connecting body, and the first sealing component in the welding robot according to the present invention is shown.

[0026] Figure 10 A schematic diagram of the structure of the first connecting body in the welding robot according to the present invention is shown;

[0027] Figure 11 A schematic diagram of a second embodiment of the welding robot according to the present invention, showing the connection joint cooperating with the welding body, is shown.

[0028] The above figures include the following reference numerals:

[0029] 100. Body; 200. Welded structure; 210. Welded body; 211. Cooling channel; 2110. First channel; 2111. Second channel; 2112. Third channel; 220. Welded joint; 230. First extended body; 231. Liquid inlet channel; 240. Second extended body; 241. Liquid outlet channel; 250. Clamping component; 251. Gripper; 252. Mounting body; 260. Fixing component;

[0030] 300, Cooling assembly; 310, Transmission pipe; 320, Connecting joint; 321, Connecting channel; 322, First connecting body; 3220, Rotating cavity; 323, Second connecting body; 324, First sealing component; 3221, First through opening; 325, Extension body; 3250, Transition channel; 326, Second sealing component; 327, Locking body; 330, Support member; 328, First connecting joint; 329, Second connecting joint; 3222, Second through opening; 3230, First limiting part; 3223, Second limiting part. Detailed Implementation

[0031] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0032] As mentioned in the background section, existing welding robots, due to the continuous movement of the robotic arm during the welding process, cause the cooling pipes to be constantly stretched by the robotic arm when cooling the welding torch, which makes the cooling pipes prone to rupture and the connection between the cooling pipes and the flow channel prone to sealing failure, resulting in unsatisfactory cooling effect. Therefore, to address the aforementioned technical problems, the welding robot provided in this application has a connecting joint 320 between the transmission pipe 310 and the cooling channel 211. The connecting joint 320 has a connecting channel 321, through which the cooling channel 211 communicates with the transmission pipe 310. At least a portion of the connecting joint 320 is rotatably arranged along a predetermined trajectory. The transmission pipe 310 is a flexible component. Thus, when the welding joint 220 moves with the position of the body 100, the connecting joint 320 can drive the transmission pipe 310 to move, avoiding bending or deformation at the connection point of the transmission pipe 310, which would lead to stress concentration in the transmission pipe 310. At the same time, by making the transmission pipe 310 a flexible component, it has a certain degree of extensibility, preventing breakage or rupture when pulled by the body 100. This effectively avoids the cooling failure problem of the welding structure 200 during the welding process and optimizes the cooling effect on the welding joint 220.

[0033] Please refer to Figures 1 to 11 This application provides a welding robot, comprising: a body 100, the body 100 being movably positioned; a welding structure 200, disposed on the body 100, the welding structure 200 including a welding body 210, the welding body 210 having a cooling channel 211 disposed therein; and a cooling assembly 300, the cooling assembly 300 including a transmission pipe 310 and a connecting joint 320, the connecting joint 320 having a connecting channel 321 disposed therein, the connecting joint 320 being connected to the transmission pipe 310 and the welding body 210 respectively, the cooling channel 211 being connected to the transmission pipe 310 through the connecting channel 321, so that the cooling medium flows sequentially through the transmission pipe 310 and the connecting channel 321 and then flows into the cooling channel 211 to cool the welding body 210; wherein, at least a portion of the connecting joint 320 is rotatably disposed along a predetermined trajectory, and the transmission pipe 310 is a flexible component.

[0034] The welding robot provided in this application includes a body 100, a welding structure 200, and a cooling assembly 300. The welding structure 200 is disposed on the body 100 and includes a welding body 210, within which a cooling channel 211 is provided. The cooling assembly 300 includes a transmission pipe 310 and a connecting joint 320, within which a connecting channel 321 is provided. The connecting joint 320 is connected to both the transmission pipe 310 and the welding body 210. The cooling channel 211 is connected to the transmission pipe 310 via the connecting channel 321, so that the cooling medium flows sequentially through the transmission pipe 310 and the connecting channel 321 before flowing into the cooling channel 211 to cool the welding body 210. At least a portion of the connecting joint 320 is rotatably disposed along a predetermined trajectory, and the transmission pipe 310 is a flexible component. The transmission pipe 310 and connecting joint 320 in the cooling assembly 300 are designed to be tightly connected to the welding body 210, ensuring that the cooling medium can flow rapidly and directly into the cooling channel 211 for efficient cooling of the electrode portion. The optimized layout of the cooling channel 211 enables the cooling medium to form a local high-speed circulation within the welding body 210, quickly removing the heat generated during welding, significantly improving cooling efficiency, and avoiding welding quality degradation and electrode wear caused by electrode overheating. Simultaneously, the rotatable nature of the connecting joint 320, combined with the flexible design of the transmission pipe 310, allows the cooling assembly to maintain a continuous supply of cooling medium even when the welding robot is performing multi-axis movements and posture changes, unaffected by the welding torch posture. This design greatly enhances the flexibility and adaptability of the welding torch in complex welding tasks; the operator or robot control system can freely adjust the welding torch angle without worrying about the cooling system failing as a result.

[0035] The use of flexible transmission fittings 310 replaces traditional rigid piping, reducing the risk of pipe damage from frequent bending and extending the service life of the cooling system. Meanwhile, the rotatable connector 320 simplifies the welding torch adjustment process, allowing operators to quickly adjust the torch position without complex tools, reducing welding defects caused by improper torch adjustment, and further lowering maintenance and operating costs.

[0036] By incorporating a connecting channel 321 within the connector 320, smooth flow of the cooling medium is ensured, preventing interruption or leakage of the cooling water path even during drastic changes in the welding torch angle, thus enhancing the stability and reliability of the cooling system. The design also considers the thermal expansion matching between the cooling components and the welding body, reducing mechanical stress caused by temperature variations and protecting critical components of the welding torch and cooling system.

[0037] Preferably, the transmission fitting 310 is made of one or more of thermoplastic polyurethane (TPU), silicone, fluororubber (FKM), polytetrafluoroethylene (PTFE) lining tube and vinyl chloride (PVC) plasticized hose.

[0038] Specifically, the connecting joint 320 includes: a first connecting body 322 connected to the welding body 210, wherein a rotating cavity 3220 is provided within the first connecting body 322, and at least a portion of the inner wall surface of the rotating cavity 3220 is a first arc-shaped surface; and a second connecting body 323 disposed within the rotating cavity 3220, wherein at least a portion of the outer surface of the second connecting body 323 is a second arc-shaped surface, which fits against the first arc-shaped surface, so that the second connecting body 323 is rotatably disposed relative to the first connecting body 322, and a connecting channel 321 is disposed within the second connecting body 323. The first connecting body 322 is fixedly connected to the welding body 210, while the second connecting body 323 achieves free rotation on a predetermined trajectory through the fit between the second arc-shaped surface and the first arc-shaped surface within the rotating cavity 3220. This design allows the cooling transfer pipe 310 to flexibly turn with the movement of the welding robot, ensuring that the cooling medium can flow smoothly to the cooling channel 211 regardless of the welding torch's posture, adapting to multi-angle changes during the welding process.

[0039] The fit between the first and second arc-shaped surfaces ensures that the connection between the connecting channel 321 and the cooling channel 211 remains tight and sealed during rotation of the connector 320. This prevents leakage of the cooling medium during transmission, maintaining the overall performance and efficiency of the cooling system. Designing the connector to include a rotating cavity 3220 and a second connecting body 323 not only achieves efficient transmission of the cooling medium but also optimizes the layout of the cooling system on the welding robot. This compact design helps reduce the overall volume of the cooling components, making them easier to integrate into the structure of the welding robot without affecting the robot's degrees of freedom of movement and operating space.

[0040] During welding, the welding torch may experience slight positional shifts or wobbling due to factors such as electromagnetic fields and vibrations. The connecting joint of this application, through the contact and rotation of its arc-shaped surface, effectively absorbs such interference, maintaining a stable connection between the cooling channel and the cooling medium transmission pipe, ensuring that the cooling effect is not affected, thereby improving the stability and quality of the welding operation.

[0041] In the embodiments provided in this application, a first limiting part 3230 is provided on the second connecting body 323, and a second limiting part 3223 is provided on the first connecting body 322. The first limiting part 3230 is a spherical protrusion structure, and the second limiting part 3223 is a groove structure with a spherical groove surface. The first limiting part 3230 and the second limiting part 3223 are interlocked, which can limit the rotation range of the second connecting body 323 during rotation. This design reduces the accumulation of mechanical stress, especially avoiding wear or breakage of the connecting parts due to excessive torsion. At the same time, it avoids the problem of sealing failure caused by excessive rotation of the second connecting body 323.

[0042] Furthermore, the connecting joint 320 also includes a first sealing member 324, disposed between the first connecting body 322 and the second connecting body 323. At least a portion of the first sealing member 324 is elastically disposed, and the first connecting body 322 and the second connecting body 323 respectively abut against the first sealing member 324. The elastic first sealing member 324 can fit tightly between the first connecting body 322 and the second connecting body 323, maintaining stable contact pressure even during severe vibration or operation of the welding torch, effectively preventing leakage of the cooling medium. The elastic sealing design of the connecting joint 320 can adapt to the posture changes generated by the welding torch during multi-axis motion, ensuring that the cooling system can still maintain a good sealing state even if the direction and angle of the welding torch are adjusted. This greatly improves the flexibility and adaptability of the welding robot in complex working environments, eliminating the need for frequent interruptions of the cooling system for posture adjustments.

[0043] Preferably, the first sealing component 324 is a rubber ring. The rubber ring, with its softness and elasticity, can tightly fit the gap between the connecting joint and the protruding body, maintaining a good sealing effect even when high-pressure cooling medium flows through, preventing coolant leakage. Simultaneously, due to the relatively low coefficient of thermal expansion of rubber, the rubber ring can adapt to thermal expansion and contraction when subjected to temperature changes in the cooling medium, maintaining the continuity and reliability of the seal. The installation of the rubber ring is usually quite simple; it only needs to be fitted onto the connecting part or groove to achieve a seal. This design reduces the complexity of assembling and maintaining the welding robot's cooling system.

[0044] In specific implementation, the first connecting body 322 is provided with a first through opening 3221. The connecting joint 320 also includes an extension body 325, which is disposed on the second connecting body 323. At least a portion of the extension body 325 passes through the first through opening 3221 into the cooling channel 211. The extension body 325 and the first through opening 3221 are in clearance fit. A transition channel 3250 communicating with the connecting channel 321 is provided inside the extension body 325. The provision of the extension body 325 ensures that the cooling medium can reach the core area of ​​the cooling channel 211 more directly and over a longer distance, especially around the electrodes. The clearance fit of the transition channel 3250 reduces the resistance during the flow of the cooling medium, improves the dynamic performance of the fluid, thereby accelerating the circulation speed of the cooling medium and enhancing the cooling effect. At the same time, when the second connecting body 323 rotates, the clearance fit provides a certain space for the movement of the extension body 325, preventing the cooling medium from flowing into the space between the first connecting body 322 and the second connecting body 323.

[0045] The first connecting body 322 is also provided with a second through opening 3222. The second through opening 3222 and the first through opening 3221 are arranged opposite to each other along the axial direction of the first connecting body 322. The transmission pipe 310 is connected to the second connecting body 323 through the second through opening 3222.

[0046] In the first embodiment provided in this application, such as Figure 11 As shown, the first connecting body 322 is directly embedded at the port of the cooling channel 211. The connecting joint 320 also includes a second sealing component 326, which is disposed between the first connecting body 322 and the welding body 210. The second sealing component 326 is interference-fitted with both the first connecting body 322 and the welding body 210. The direct embedding of the first connecting body 322 at the port of the cooling channel 211 reduces the transition links in the process of the cooling medium being transferred from the transmission pipe 310 to the cooling channel 211, thereby reducing the flow resistance and energy loss of the cooling water before entering the cooling channel, ensuring that the cooling medium can quickly and fully cover the area around the electrode, and improving the cooling rate and effect.

[0047] Preferably, the second sealing component 326 is a rubber ring. The rubber ring, with its softness and elasticity, can tightly fit the gap between the connecting joint and the protruding body, maintaining a good sealing effect even when high-pressure cooling medium flows through, preventing coolant leakage. Simultaneously, due to the relatively low coefficient of thermal expansion of rubber, the rubber ring can adapt to thermal expansion and contraction when subjected to temperature changes in the cooling medium, maintaining the continuity and reliability of the seal. The installation of the rubber ring is usually quite simple; it only needs to be fitted onto the connecting part or groove to achieve a seal. This design reduces the complexity of assembling and maintaining the welding robot's cooling system.

[0048] The interference fit between the second sealing component 326 and the first connecting body 322 and the welding body 210 provides a high-precision, high-strength sealing interface. This design effectively prevents leakage of the cooling medium at the connection point, especially when the welding robot performs multi-axis movements and the connecting joint 320 swings with the welding torch body, maintaining a stable seal and avoiding waste of the cooling medium. It also prevents electrical short circuits and safety hazards caused by cooling water leakage. The directly embedded first connecting body 322 and the interference-fit second sealing component 326 together form a robust connection point. Even under extreme welding conditions, such as high-intensity welding, high-temperature operations, or rapid torch movement, the connection point is not easily loosened or damaged, significantly enhancing the stability and reliability of the cooling system and the overall welding robot.

[0049] By integrating the first connecting body 322 and the second sealing component 326 into the cooling assembly, this application optimizes the overall layout and space occupation of the cooling assembly without sacrificing cooling performance. This compact and efficient integration reduces the constraints of the cooling assembly on the welding torch design, enabling the welding torch to be more flexibly applied to various welding scenarios.

[0050] In the second embodiment provided in this application, such as Figures 7 to 10 As shown, the welding body 210 is provided with external threads, and the connecting joint 320 further includes a locking body 327, which is disposed on the first connecting body 322. The locking body 327 is provided with internal threads, and the locking body 327 is threadedly connected to the welding body 210. The threaded connection provides reliable mechanical fixation. Compared with connection methods such as snap-fit ​​or adhesive, it can better resist the vibration and impact generated during welding, ensuring that the cooling component and the welding body always maintain close contact, and avoiding the decrease in cooling efficiency due to loose connection.

[0051] The threaded connection design between the locking body 327 and the welding body 210 allows for the addition of an adjustable connection joint between the cooling assembly 300 and the welding structure 200. The operator can fine-tune the welding torch posture by adjusting the tightness of the locking body 327 without affecting the flow path of the cooling medium, thus improving welding flexibility and positioning accuracy.

[0052] By adopting a threaded connection design, the welding robot of this application not only improves the stability and sealing of the connection between the cooling components and the welding body, but also simplifies the assembly and maintenance process, enhances the attitude adjustment capability and compatibility of the welding torch in multi-axis motion, and ultimately improves the stability and production efficiency of welding operations.

[0053] In practical implementation, the cooling assembly 300 also includes a support member 330, which is inserted inside the transmission pipe 310. The support member 330 is in contact with the pipe wall of the transmission pipe 310 and is an elastic member. The elastic support member 330, inserted inside the transmission pipe 310 and in close contact with the pipe wall, can effectively prevent the cooling pipe from deforming or twisting when subjected to external forces. Especially when the welding robot performs complex and variable welding paths, the support member can maintain the original shape of the transmission pipe and avoid a decrease in the flow rate of the cooling medium or blockage due to pipe deformation.

[0054] During welding, the cooling system is affected by high temperatures, and the pipe fittings may undergo thermal expansion. The addition of elastic supports can buffer this thermal expansion effect. Through their own elasticity and deformation, they reduce the internal pressure on the pipe wall caused by thermal expansion, thereby avoiding the risk of pipe fittings rupturing due to excessive expansion.

[0055] The flexible support 330 helps maintain the internal shape and diameter of the transmission pipe 310, ensuring a stable flow rate and volume of the cooling medium as it flows through the pipe. This helps improve the efficiency of the cooling system, ensuring rapid and effective cooling around the electrodes, improving welding quality, and extending equipment life. The use of the flexible support 330 can reduce cracks and damage to the cooling pipe due to fatigue during long-term use, extending the service life of the cooling pipe. In addition, because the flexible element can self-adjust its fit to the pipe wall, even if the pipe experiences slight wear during use, the support can still maintain the structural integrity and sealing of the pipeline.

[0056] Preferably, the support member 330 is made of spring steel, rubber, or silicone. It can be embedded in the inner wall of the cooling transmission pipe, and through its own elastic deformation, it fits tightly against the inner wall of the pipe, thereby providing additional stability during the flow of the cooling medium and reducing vibration and bending. The support member 330 can also be a mesh structure, which includes intersecting metal strips to provide radial and axial support for the transmission pipe 310.

[0057] The welding structure 200 also includes a welding joint 220, which is inserted into the welding body 210. The cooling channel 211 includes: a first channel 2110, disposed within the welding body 210 and located on the first side of the welding joint 220, extending along the axial direction of the welding body 210; and a second channel 2111, disposed within the welding body 210 and extending along the axial direction of the welding body 210, located on the second side of the welding joint 220, communicating with the outlet end of the first channel 2110. The cooling medium flows sequentially through the first channel 2110 and the second channel 2111 before exiting the welding body 210. By providing the first channel 2110 and the second channel 2111 on both sides of the welding joint 220, the cooling medium can flow around the electrode, rather than just flowing on one side. This method can distribute the cooling effect more evenly, avoid localized overheating of the electrode, thereby extending the electrode's service life and reducing welding interruptions caused by electrode damage.

[0058] The first flow channel 2110 and the second flow channel 2111 are connected by a third flow channel 2112, which extends radially along the welded body 210. The cooling medium first flows through the first flow channel 2110, and then changes its flow direction to continue the cooling process through the connection between the third flow channel 2112 and the second flow channel 2111. This orderly bidirectional flow path ensures maximum utilization efficiency of the cooling medium, while also reducing turbulence and dead zones during medium flow, preventing bubble formation, and improving the heat transfer performance of the medium.

[0059] In this application, the connecting joint 320 includes a first connecting joint 328 and a second connecting joint 329. The welding structure 200 further includes: a first protruding body 230 disposed on the welding body 210, with a liquid inlet channel 231 inside the first protruding body 230, communicating with a first flow channel 2110, and the first connecting joint 328 connected to the first protruding body 230; and a second protruding body 240 disposed on the welding body 210, with a liquid outlet channel 241 inside the second protruding body 240, communicating with a second flow channel 2111, and the second connecting joint 329 connected to the second protruding body 240. The first protruding body 230 and the second protruding body 240 are respectively located at the ends of the welding body 210 furthest from the welding end. In this design, the liquid inlet channel 231 is directly connected to the first flow channel 2110, while the liquid outlet channel 241 is directly connected to the second flow channel 2111, achieving efficient introduction and export of the cooling medium. This layout reduces ineffective bends and lengths in the cooling medium flow path, increases the medium circulation speed, and thus enhances the cooling effect.

[0060] The first connecting joint 328 and the second connecting joint 329 are respectively connected to the first protruding body 230 and the second protruding body 240. Through precise dimensional matching and possible additional sealing measures, such as O-rings and sealants, the cooling system can maintain a high degree of sealing and stability under high-load welding conditions, avoiding leakage of cooling medium and system failure.

[0061] The first protruding body 230 and the second protruding body 240 are located at the end of the welding body 210 away from the welding end. This design can effectively avoid direct interference from welding spatter, electric arc, etc. on the liquid inlet and outlet channels, protect the cooling system from the influence of the external environment, and extend the service life of the system.

[0062] The welding structure 200 further includes: a welding joint 220, which passes through the welding body 210; a clamping component 250, which is inserted into the welding body 210 and includes multiple jaws 251 arranged around the welding joint 220; and a fixing member 260, which is sleeved on the clamping component 250 and connected to the welding body 210, and which clamps the jaws 251 onto the welding joint 220. Specifically, the clamping component 250 includes a mounting body 252, which is inserted into the welding body 210. The multiple jaws 251 are spaced apart along the circumferential direction of the mounting body 252, and the mounting body 252 provides stable support for each jaw 251. The annular arrangement of the multiple jaws 251 can apply force evenly to the welding joint 220 from all directions, ensuring its accurate positioning and firm fixation during the welding process. The adjustable connection between the fixing member 260 and the welding body 210 allows the operator to adjust the relative position and angle of the welding joint 220 with respect to the electrode within a certain range to meet the needs of different welding applications. For example, when welding thicker or irregularly shaped workpieces, the operator can fine-tune the extension length and direction of the electrode to obtain the best welding effect.

[0063] With a uniformly distributed clamping force, the electrode experiences more balanced stress during welding, reducing electrode wear or damage caused by excessive local pressure. Furthermore, the locking mechanism of the fixing element 260 effectively prevents unnecessary movement of the electrode during welding, further extending its service life.

[0064] As can be seen from the above description, the embodiments of this utility model achieve the following technical effects:

[0065] The welding robot provided in this application includes a body 100, a welding structure 200, and a cooling assembly 300. The welding structure 200 is disposed on the body 100 and includes a welding body 210, within which a cooling channel 211 is provided. The cooling assembly 300 includes a transmission pipe 310 and a connecting joint 320, within which a connecting channel 321 is provided. The connecting joint 320 is connected to both the transmission pipe 310 and the welding body 210. The cooling channel 211 is connected to the transmission pipe 310 via the connecting channel 321, so that the cooling medium flows sequentially through the transmission pipe 310 and the connecting channel 321 before flowing into the cooling channel 211 to cool the welding body 210. At least a portion of the connecting joint 320 is rotatably disposed along a predetermined trajectory, and the transmission pipe 310 is a flexible component. The transmission pipe 310 and connecting joint 320 in the cooling assembly 300 are designed to be tightly connected to the welding body 210, ensuring that the cooling medium can flow rapidly and directly into the cooling channel 211 for efficient cooling of the electrode portion. The optimized layout of the cooling channel 211 enables the cooling medium to form a local high-speed circulation within the welding body 210, quickly removing the heat generated during welding, significantly improving cooling efficiency, and avoiding welding quality degradation and electrode wear caused by electrode overheating. Simultaneously, the rotatable nature of the connecting joint 320, combined with the flexible design of the transmission pipe 310, allows the cooling assembly to maintain a continuous supply of cooling medium even when the welding robot is performing multi-axis movements and posture changes, unaffected by the welding torch posture. This design greatly enhances the flexibility and adaptability of the welding torch in complex welding tasks; the operator or robot control system can freely adjust the welding torch angle without worrying about the cooling system failing as a result.

[0066] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0067] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0068] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0069] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0070] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0071] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A welding robot, characterized in that, include: The body (100) is movably positioned; A welding structure (200) is disposed on the body (100). The welding structure (200) includes a welding body (210) and a cooling channel (211) is disposed inside the welding body (210). A cooling assembly (300) includes a transmission pipe (310) and a connecting joint (320). The connecting joint (320) has a connecting channel (321) and is connected to the transmission pipe (310) and the welding body (210) respectively. The cooling channel (211) is connected to the transmission pipe (310) through the connecting channel (321) so that the cooling medium flows through the transmission pipe (310) and the connecting channel (321) in sequence and then flows into the cooling channel (211) to cool the welding body (210). The connecting joint (320) is rotatably disposed along a predetermined trajectory, and the transmission pipe (310) is a flexible component.

2. The welding robot according to claim 1, characterized in that, The connecting joint (320) includes: A first connecting body (322) is connected to the welding body (210). A rotating cavity (3220) is provided inside the first connecting body (322). At least a portion of the inner wall surface of the rotating cavity (3220) is a first arc-shaped surface. The second connecting body (323) is disposed in the rotating cavity (3220). At least a portion of the outer surface of the second connecting body (323) is a second arc-shaped surface. The second arc-shaped surface is in contact with the first arc-shaped surface so that the second connecting body (323) is rotatably disposed relative to the first connecting body (322). The communicating channel (321) is disposed in the second connecting body (323).

3. The welding robot according to claim 2, characterized in that, The connecting joint (320) also includes: A first sealing component (324) is disposed between the first connecting body (322) and the second connecting body (323). At least a portion of the first sealing component (324) is elastically disposed, and the first connecting body (322) and the second connecting body (323) respectively fit against the first sealing component (324).

4. The welding robot according to claim 2, characterized in that, The first connecting body (322) is provided with a first through opening (3221), and the connecting connector (320) further includes: An extension body (325) is disposed on the second connecting body (323). At least a portion of the extension body (325) passes through the first through opening (3221) into the cooling channel (211). The extension body (325) is clearance-fitted with the first through opening (3221). A transition channel (3250) communicating with the connecting channel (321) is provided inside the extension body (325).

5. The welding robot according to claim 2, characterized in that, The connecting joint (320) also includes: A second sealing component (326) is disposed between the first connecting body (322) and the welding body (210), and the second sealing component (326) is interference-fitted with the first connecting body (322) and the welding body (210) respectively.

6. The welding robot according to claim 2, characterized in that, The welding body (210) is provided with external threads, and the connecting joint (320) further includes: A locking body (327) is disposed on the first connecting body (322), the locking body (327) is provided with an internal thread, and the locking body (327) is threadedly connected to the welding body (210).

7. The welding robot according to claim 1, characterized in that, The cooling assembly (300) also includes: A support member (330) is inserted inside the transmission pipe (310). The support member (330) is in contact with the pipe wall of the transmission pipe (310). The support member (330) is an elastic member.

8. The welding robot according to claim 1, characterized in that, The welded structure (200) further includes a welded joint (220), which is inserted into the welded body (210). The cooling channel (211) includes: A first flow channel (2110) is disposed within the welding body (210) and located on the first side of the welding joint (220), the first flow channel (2110) extending along the axial direction of the welding body (210); The second flow channel (2111) is disposed inside the welding body (210) and extends along the axial direction of the welding body (210). The second flow channel (2111) is located on the second side of the welding joint (220). The second flow channel (2111) is connected to the liquid outlet end of the first flow channel (2110). The cooling medium flows through the first flow channel (2110) and the second flow channel (2111) in sequence and then exits the welding body (210).

9. The welding robot according to claim 8, characterized in that, The connecting joint (320) includes a first connecting joint (328) and a second connecting joint (329), and the welding structure (200) further includes: The first protruding body (230) is disposed on the welding body (210). The first protruding body (230) is provided with a liquid inlet channel (231), which is connected to the first flow channel (2110). The first connecting joint (328) is connected to the first protruding body (230). The second protruding body (240) is disposed on the welding body (210). The second protruding body (240) is provided with a liquid outlet channel (241), which is connected to the second flow channel (2111). The second connecting joint (329) is connected to the second protruding body (240). The first protruding body (230) and the second protruding body (240) are respectively located at the end of the welding body (210) away from the welding end.

10. The welding robot according to claim 1, characterized in that, The welded structure (200) also includes: The welding joint (220) is inserted inside the welding body (210); A clamping component (250) is inserted into the welding body (210). The clamping component (250) includes a plurality of jaws (251) arranged around the welding joint (220). The fixing member (260) is sleeved on the clamping member (250) and connected to the welding body (210). The fixing member (260) causes each of the jaws (251) to clamp onto the welding joint (220).

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