Welding robot

Abstract

The invention provides a welding robot which comprises a machine body, a welding robot body and a welding robot body. The welding structure is arranged on the machine body, the welding structure comprises a welding body, and a cooling flow channel is formed in the welding body; the cooling assembly comprises a conveying pipe fitting and a connecting joint, a communicating channel is formed in the connecting joint, the connecting joint is connected with the conveying pipe fitting and the welding body, and the cooling flow channel communicates with the conveying pipe fitting through the communicating channel; a cooling medium sequentially flows through the transmission pipe fitting and the communicating channel and then flows into the cooling flow channel to cool the welding body; wherein at least part of the connecting joint is rotatably arranged along a preset track, and the conveying pipe fitting is a flexible piece. The problem that in the prior art, the cooling effect is not ideal due to the fact that the position of a welding robot changes continuously in the running process is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of welding robots, and more particularly, to a welding robot. Background Art

[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 and continuous welding tasks, the cooling problem of the welding torch becomes one of the key factors affecting their performance and service life.

[0003] Limited by the need for continuous movement of the welding robot, the system for cooling the welding torch is difficult to be flexibly adjusted according to the changes in the welding environment and welding speed. Most of them use air cooling or simple water-cooling channels, and the cooling effect is limited. It cannot effectively handle the heat generated during high-intensity welding, resulting in too high temperature inside the welding torch, affecting the stability of the electrode and the quality of the weld seam. Summary of the Invention

[0004] The main object of the present invention is to provide a welding robot to solve the problem that the cooling effect of the existing welding robot is not ideal due to the continuous change of its position during operation.

[0005] To achieve the above object, according to one aspect of the present invention, there is provided a welding robot, including: a body, the position of the body is movably arranged; a welding structure, arranged on the body, the welding structure includes a welding body, and a cooling channel is arranged inside the welding body; a cooling assembly, the cooling assembly includes a transmission pipe fitting and a connection joint, a communication channel is arranged inside the connection joint, the connection joint is respectively connected to the transmission pipe fitting and the welding body, and the cooling channel is communicated with the transmission pipe fitting through the communication channel, so that the cooling medium flows through the transmission pipe fitting and the communication channel in sequence and then flows into the cooling channel to cool the welding body; wherein, at least part of the connection joint is rotatably arranged along a predetermined track, and the transmission pipe fitting is a flexible part.

[0006] Further, the connection joint includes: a first connection body, connected to the welding body, a rotating cavity is arranged inside the first connection body, and at least part of the inner wall surface of the rotating cavity is a first arc surface; a second connection body, arranged inside the rotating cavity, at least part of the outer surface of the second connection body is a second arc surface, and the second arc surface is attached to the first arc surface, so that the second connection body is rotatably arranged relative to the first connection body, and the communication channel is arranged inside the second connection body.

[0007] Further, the connection joint further includes: a first sealing member disposed between the first connection body and the second connection body, at least a part of the first sealing member being elastically disposed, and the first connection body and the second connection body being respectively in contact with the first sealing member.

[0008] Further, a first through-opening is provided on the first connection body, and the connection joint further includes: an extension body disposed on the second connection body, at least a part of the extension body passing through the first through-opening into the cooling flow channel, the extension body being in clearance fit with the first through-opening, and a transition channel communicating with the communication channel being provided in the extension body.

[0009] Further, the connection joint further includes: a second sealing member disposed between the first connection body and the welding body, the second sealing member being in interference fit with the first connection body and the welding body respectively.

[0010] Further, an external thread is provided on the welding body, and the connection joint further includes: a locking body disposed on the first connection body, an internal thread being provided on the locking body, and the locking body being threadedly connected to the welding body.

[0011] Further, the cooling assembly further includes: a support member inserted into the transmission pipe fitting, the support member being in contact with the pipe wall surface of the transmission pipe fitting, and the support member being an elastic member.

[0012] Further, the welding structure further includes a welding joint inserted into the welding body. The cooling flow channel includes: a first flow channel disposed in the welding body and located on a first side of the welding joint, the first flow channel extending along the axial direction of the welding body; a second flow channel disposed in the welding body and extending along the axial direction of the welding body, the second flow channel being located on a second side of the welding joint, the second flow channel communicating with the liquid outlet end of the first flow channel, and the cooling medium flowing through the first flow channel and the second flow channel in sequence and then discharging from the welding body.

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

[0014] Further, the welding structure further includes: a welding joint inserted into the welding body; a clamping member inserted into the welding body, the clamping member including a plurality of clamping jaws disposed around the welding joint; and a fixing member sleeved on the clamping member and connected to the welding body, and each clamping jaw being clamped on the welding joint by the fixing member.

[0015] The technical solution of the present invention is applied. According to the welding robot provided in the present application, it includes a body, a welding structure and a cooling assembly. The welding structure is arranged on the body. The welding structure includes a welding body, and a cooling channel is arranged in the welding body. The cooling assembly includes a transmission pipe and a connecting joint. A connecting channel is arranged in the connecting joint. The connecting joint is respectively connected to the transmission pipe and the welding body. The cooling channel is connected to the transmission pipe through the connecting channel, so that the cooling medium flows through the transmission pipe and the connecting channel in sequence and then flows into the cooling channel to cool the welding body. At least part of the connecting joint is rotatably arranged along a predetermined trajectory, and the transmission pipe is a flexible part. The transmission pipe and the connecting joint in the cooling assembly are designed to be closely connected to the welding body, ensuring that the cooling medium can flow into the cooling channel quickly and directly, and efficiently cool the electrode part. The optimized layout of the cooling channel allows the cooling medium to form a local high-speed circulation inside the welding body, quickly taking away the heat generated during the welding process, significantly improving the cooling efficiency and avoiding the degradation of welding quality and electrode loss caused by electrode overheating. At the same time, the rotatable characteristics of the connecting joint, combined with the flexible design of the transmission pipe, enable the cooling component to maintain a continuous supply of cooling medium when the welding robot performs multi-axis motion and posture changes, without being affected by the welding gun posture. This design greatly enhances the flexibility and adaptability of the welding gun in complex welding tasks. The operator or robot control system can freely adjust the welding gun angle without worrying about the failure of the cooling system. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

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

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

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

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

[0021] Figure 5 Shows Figure 4 Sectional view of the middle AA plane;

[0022] Figure 6 ShowsFigure 5 Cross-sectional view of the C-C plane;

[0023] Figure 7 Schematic structural diagram showing the first embodiment of the cooperation between the connection joint and the welding body in the welding robot according to the present invention;

[0024] Figure 8 Schematic structural diagram showing the first embodiment of the cooling component in the welding robot according to the present invention;

[0025] Figure 9 Schematic diagram showing the cooperation of the first connection body, the second connection body and the first sealing member in the welding robot according to the present invention;

[0026] Figure 10 Schematic structural diagram showing the first connection body in the welding robot according to the present invention;

[0027] Figure 11 Schematic structural diagram showing the second embodiment of the cooperation between the connection joint and the welding body in the welding robot according to the present invention.

[0028] Among them, the above-mentioned drawings include the following reference numerals:

[0029] 100, body; 200, welding structure; 210, welding body; 211, cooling channel; 2110, first channel; 2111, second channel; 2112, third channel; 220, welding joint; 230, first protruding body; 231, liquid inlet channel; 240, second protruding body; 241, liquid outlet channel; 250, clamping member; 251, jaw; 252, mounting body; 260, fixing member;

[0030] 300, cooling component; 310, transmission pipe fitting; 320, connection joint; 321, communication channel; 322, first connection body; 3220, rotation cavity; 323, second connection body; 324, first sealing member; 3221, first through opening; 325, extension body; 3250, transition channel; 326, second sealing member; 327, locking body; 330, support member; 328, first connection joint; 329, second connection joint; 3222, second through opening; 3230, first limiting portion; 3223, second limiting portion. Detailed Description of the Invention

[0031] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments may be combined with each other. The present invention will be described in detail below with reference to the drawings and in conjunction with the embodiments.

[0032] As mentioned in the background art, in the existing welding robots, since the robotic arm moves continuously during the welding process, when cooling the welding torch carried by it, the cooling pipeline will be continuously pulled along with the robotic arm, resulting in easy rupture of the cooling pipeline and easy sealing failure at the connection between the cooling pipeline and the flow channel, causing the problem of unsatisfactory cooling effect. Therefore, in view of the above technical problems, the welding robot provided in the present application is provided with a connection joint 320 between the transmission pipe fitting 310 and the cooling flow channel 211. A communication channel 321 is provided in the connection joint 320. The cooling flow channel 211 is communicated with the transmission pipe fitting 310 through the communication channel 321, and at least part of the connection joint 320 is rotatably arranged along a predetermined track. The transmission pipe fitting 310 is a flexible member. In this way, when the welding joint 220 moves with the position of the body 100, the connection joint 320 can be used to drive the transmission pipe fitting 310 to move, avoiding bending or deformation at the connection of the transmission pipe fitting 310, resulting in stress concentration of the transmission pipe fitting 310. At the same time, the transmission pipe fitting 310 is set as a flexible member, so that the transmission pipe fitting 310 has a certain ductility, avoiding breakage or rupture when being pulled by the body 100, and thus effectively avoiding the problem of cooling failure of the welding structure 200 during the welding process of the welding robot and optimizing the cooling effect on the welding joint 220.

[0033] Please refer to Figures 1 to 11 , the present application provides a welding robot, including: a body 100, which is movably arranged; a welding structure 200, arranged on the body 100, the welding structure 200 includes a welding body 210, and a cooling flow channel 211 is arranged in the welding body 210; a cooling assembly 300, the cooling assembly 300 includes a transmission pipe fitting 310 and a connection joint 320, a communication channel 321 is arranged in the connection joint 320, the connection joint 320 is respectively connected to the transmission pipe fitting 310 and the welding body 210, and the cooling flow channel 211 is communicated with the transmission pipe fitting 310 through the communication channel 321, so that the cooling medium flows through the transmission pipe fitting 310 and the communication channel 321 in sequence and then flows into the cooling flow channel 211 to cool the welding body 210; wherein, at least part of the connection joint 320 is rotatably arranged along a predetermined track, and the transmission pipe fitting 310 is a flexible member.

[0034] According to the welding robot provided by the present application, it includes a body 100, a welding structure 200, and a cooling component 300. The welding structure 200 is arranged on the body 100. The welding structure 200 includes a welding body 210, and a cooling flow channel 211 is arranged inside the welding body 210. The cooling component 300 includes a transmission pipe fitting 310 and a connection joint 320. A communication channel 321 is arranged inside the connection joint 320. The connection joint 320 is respectively connected to the transmission pipe fitting 310 and the welding body 210. The cooling flow channel 211 is communicated with the transmission pipe fitting 310 through the communication channel 321, so that the cooling medium flows through the transmission pipe fitting 310 and the communication channel 321 in sequence and then flows into the cooling flow channel 211 to cool the welding body 210. Wherein, at least a part of the connection joint 320 is rotatably arranged along a predetermined track, and the transmission pipe fitting 310 is a flexible part. The transmission pipe fitting 310 and the connection joint 320 in the cooling component 300 are designed to be closely connected to the welding body 210, ensuring that the cooling medium can flow into the cooling flow channel 211 quickly and directly, and efficiently cooling the electrode part. The optimized layout of the cooling flow channel 211 enables the cooling medium to form a local high-speed circulation inside the welding body 210, quickly taking away the heat generated during the welding process, significantly improving the cooling efficiency, avoiding the decline of welding quality and electrode loss caused by overheating of the electrode. At the same time, the rotatable characteristic of the connection joint 320, combined with the flexible design of the transmission pipe fitting 310, enables the cooling component to still maintain the continuous supply of the cooling medium when the welding robot performs multi-axis movement and posture transformation, without being affected by the posture of the welding torch. This design greatly enhances the flexibility and adaptability of the welding torch in complex welding tasks. The operator or the robot control system can freely adjust the angle of the welding torch without worrying about the failure of the cooling system.

[0035] The traditional rigid pipeline is replaced by the flexible transmission pipe fitting 310, reducing the risk of pipeline damage during frequent bending and extending the service life of the cooling system. At the same time, the rotatable connection joint 320 simplifies the adjustment process of the welding torch. The operator can quickly adjust the position of the welding torch without complex tools, reducing welding defects caused by improper adjustment of the welding torch and further reducing the maintenance and operation costs.

[0036] By arranging the communication channel 321 in the connection joint 320, the smooth transmission of the cooling medium is ensured. Even when the angle of the welding torch changes violently, the interruption or leakage of the cooling water path can be avoided, enhancing the stability and reliability of the cooling system. This design also takes into account the thermal expansion matching between the cooling component and the welding body, reducing the mechanical stress caused by temperature changes and protecting the key components of the welding torch and the cooling system.

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

[0038] Specifically, the connection joint 320 includes: a first connection body 322 connected to the welding body 210. A rotation cavity 3220 is provided inside the first connection body 322, and at least part of the inner wall surface of the rotation cavity 3220 is a first arc surface; a second connection body 323 is provided inside the rotation cavity 3220. At least part of the outer surface of the second connection body 323 is a second arc surface, and the second arc surface fits with the first arc surface so that the second connection body 323 is rotatably arranged relative to the first connection body 322. A communication channel 321 is provided inside the second connection body 323. The first connection body 322 is fixedly connected to the welding body 210, and the second connection body 323 realizes free rotation on a predetermined track through the fitting of the second arc surface and the first arc surface inside the rotation cavity 3220. This design allows the cooling transmission pipe fitting 310 to flexibly turn along with the movement of the welding robot, ensuring that the cooling medium can smoothly flow to the cooling channel 211 regardless of the posture of the welding torch, and adapting to multi-angle changes during the welding process.

[0039] The fitting of the first arc surface and the second arc surface ensures that when the connection joint 320 rotates, the connection between the communication channel 321 and the cooling channel 211 is always tight and sealed. This avoids possible leakage of the cooling medium during transmission, maintains the overall performance and efficiency of the cooling system. Designing the connection joint in the form including the rotation cavity 3220 and the second connection body 323 not only realizes the efficient transmission of the cooling medium, but also optimizes the layout of the cooling system on the welding robot. This compact design helps to reduce the overall volume of the cooling component, making it easier to integrate into the structure of the welding robot, and at the same time does not affect the degree of freedom of movement and the operating space of the welding robot.

[0040] During the welding process, due to the influence of factors such as electromagnetic field and vibration, the welding torch may have slight position offsets or vibrations. The connection joint of the present application can effectively absorb such interference through the fitting and rotation of the arc surfaces, maintain the stable connection between the cooling channel and the cooling medium transmission pipe fitting, ensure that the cooling effect is not affected, and thus improve the stability of the welding operation and the welding quality.

[0041] In the embodiments provided by the present application, a first limiting portion 3230 is provided on the second connection body 323, and a second limiting portion 3223 is provided on the first connection body 322. The first limiting portion 3230 is a spherical convex structure, and the second limiting portion 3223 is a groove structure with a spherical groove surface. The first limiting portion 3230 and the second limiting portion 3223 are inserted into each other, which can limit the rotation range of the second connection body 323 during the rotation of the second connection body 323. This design reduces the accumulation of mechanical stress, especially avoids the wear or fracture of the connecting components caused by excessive torsion. At the same time, it avoids the problem of seal failure caused by the excessive rotation amplitude of the second connection body 323.

[0042] Furthermore, the connection joint 320 further includes: a first sealing member 324, which is arranged between the first connection body 322 and the second connection body 323. At least part of the first sealing member 324 is elastically arranged, and the first connection body 322 and the second connection body 323 are respectively in contact with the first sealing member 324. The elastic first sealing member 324 can closely fit between the first connection body 322 and the second connection body 323. Even during the severe vibration or operation of the welding torch, it can maintain a stable contact pressure and effectively prevent the leakage of the cooling medium. The elastic sealing design of the connection joint 320 can adapt to the attitude changes generated during the multi-axis movement of the welding torch, ensuring that even when the direction and angle of the welding torch are adjusted, the cooling system can still maintain a good sealing state. This greatly improves the flexibility and adaptability of the welding robot in a complex working environment without the need to frequently interrupt the cooling system for attitude adjustment.

[0043] Preferably, the first sealing member 324 is a rubber ring. Due to its softness and elasticity, the rubber ring can closely fit the gap between the connection joint and the protruding body. Even when the high-pressure cooling medium flows through, it can maintain a good sealing effect and prevent the leakage of the coolant. At the same time, because the thermal expansion coefficient of rubber is relatively low, when the rubber ring is affected by the temperature change of the cooling medium, it can adapt to thermal expansion and contraction and maintain the continuity and reliability of the sealing state. The installation of the rubber ring is usually relatively simple, and only by sleeving it into the connecting part or the notch can the sealing be achieved. This design reduces the complexity of the assembly and maintenance of the cooling system of the welding robot.

[0044] In the specific implementation process, a first through opening 3221 is provided on the first connection body 322. The connection joint 320 further includes: an extension body 325 provided on the second connection body 323. At least a part of the extension body 325 passes through the first through opening 3221 into the cooling channel 211. The extension body 325 is in clearance fit with the first through opening 3221, and a transition channel 3250 communicating with the communication channel 321 is provided inside the extension body 325. The setting of the extension body 325 ensures that the cooling medium can reach the core area inside the cooling channel 211 more directly and over a longer distance, especially around the electrode. The design of the transition channel 3250 with clearance fit reduces the resistance during the flow of the cooling medium, improves the hydrodynamic 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 connection 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 connection body 322 and the second connection body 323.

[0045] A second through opening 3222 is further provided on the first connection body 322. The second through opening 3222 and the first through opening 3221 are arranged opposite to each other along the axis direction of the first connection body 322. The transmission pipe fitting 310 is connected to the second connection body 323 through the second through opening 3222.

[0046] In the first embodiment provided by the present application, as Figure 11 shown, the first connection body 322 is directly embedded at the port of the cooling channel 211. The connection joint 320 further includes: a second sealing member 326 provided between the first connection body 322 and the welding body 210. The second sealing member 326 is in interference fit with the first connection body 322 and the welding body 210 respectively. The direct embedding method of the first connection body 322 at the port of the cooling channel 211 reduces the transition link during the transmission of the cooling medium from the transmission pipe fitting 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 periphery of the electrode, and improving the cooling rate and effect.

[0047] Preferably, the second sealing member 326 is a rubber ring. Due to its softness and elasticity, the rubber ring can closely fit the gap between the connection joint and the protruding body. Even when the high-pressure cooling medium flows through, it can maintain a good sealing effect and prevent the coolant from leaking. At the same time, because the thermal expansion coefficient of rubber is relatively low, when the rubber ring is affected by the temperature change of the cooling medium, it can adapt to thermal expansion and contraction and maintain the continuity and reliability of the sealing state. The installation of the rubber ring is usually relatively simple, and only needs to be sleeved into the connection part or notch to achieve sealing. This design reduces the complexity of the assembly and maintenance of the cooling system of the welding robot.

[0048] The interference fit between the second sealing member 326 and the first connection body 322 and the welding body 210 provides a high-precision and high-strength sealing interface. This design can effectively prevent the leakage of the cooling medium at the connection. Especially when the welding robot performs multi-axis movement and the connection joint 320 swings along with the welding torch body, it can still maintain a stable seal, avoiding the waste of the cooling medium, and at the same time preventing electrical short circuits and safety hazards caused by the leakage of cooling water. The directly embedded first connection body 322 and the interference-fitted second sealing member 326 jointly construct a stable connection point. Even under extreme welding conditions, such as high-intensity welding, high-temperature operation, or rapid movement of the welding torch, the connection 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 connection body 322 and the second sealing member 326 into the cooling component, the present application optimizes the overall layout and space occupancy of the cooling component without sacrificing the cooling performance. This compact and efficient integration scheme reduces the constraints of the cooling component on the welding torch design, enabling the welding torch to be more flexible and applicable to various welding scenarios.

[0050] In the second embodiment provided by the present application, as Figures 7 to 10 shown, the welding body 210 is provided with an external thread, and the connection joint 320 further includes: a locking body 327 disposed on the first connection 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. The threaded connection method provides reliable mechanical fixation. Compared with connection methods such as snap or adhesion, it can better resist the vibration and impact force generated during the welding process, ensuring that the cooling component and the welding body always maintain close contact, and avoiding the decrease in cooling efficiency caused by loose connection.

[0051] The threaded connection design between the locking body 327 and the welding body 210 enables an adjustable connection joint to be added between the cooling component 300 and the welding structure 200. The operator can fine-tune the tightening degree of the locking body 327 to achieve fine adjustment of the welding torch posture, while not affecting the flow path of the cooling medium, improving the welding flexibility and positioning accuracy.

[0052] By adopting the threaded connection design, the welding robot of the present application not only improves the stability and sealing performance of the connection between the cooling component and the welding body, but also simplifies the assembly and maintenance process, enhances the posture adjustment ability and compatibility of the welding torch during multi-axis movement, and ultimately improves the stability and production efficiency of the welding operation.

[0053] In the specific implementation process, the cooling component 300 further includes: a support member 330, which is inserted into the transmission pipe fitting 310. The support member 330 is in contact with the inner wall surface of the transmission pipe fitting 310, and the support member 330 is an elastic member. The elastic support member 330 is inserted into the interior of the transmission pipe fitting 310 and is in close contact with the pipe wall, which can effectively prevent the cooling pipe from deforming or twisting under external forces. Especially when the welding robot executes complex and variable welding paths, the support member can maintain the original shape of the transmission pipe fitting and avoid the reduction of the cooling medium flow rate or blockage caused by pipeline deformation.

[0054] During the welding process, the cooling system will be affected by high temperatures, and the pipe fittings may undergo thermal expansion. The addition of the elastic support member can buffer this thermal expansion effect. Through its own elasticity and deformation, it reduces the internal pressure on the pipe wall caused by thermal expansion, thereby avoiding the risk of the pipe fitting bursting due to excessive expansion.

[0055] The elastic support member 330 helps to maintain the internal shape and diameter of the transmission pipe fitting 310, ensuring a stable flow rate and flow volume of the cooling medium when it flows through the pipeline. This helps to improve the working efficiency of the cooling system, ensure rapid and effective cooling around the electrode, improve the welding quality and extend the service life of the equipment; the use of the elastic support member 330 can reduce cracks and damages caused by fatigue in the cooling pipe fittings during long-term use and extend the service life of the cooling pipe. In addition, since the elastic member can self-adjust the degree of contact with the pipe wall, even if there is slight wear in the pipe fitting during use, the support member can still maintain the structural integrity and tightness of the pipeline.

[0056] Preferably, the support member 330 is made of spring steel, rubber or silicone, etc. It can be embedded in the inner wall of the cooling transmission pipe fitting and, through its own elastic deformation, closely adhere to the inner wall of the pipe fitting, 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, and the mesh structure includes metal strips arranged crosswise to provide radial and axial support for the transmission pipe fitting 310.

[0057] 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 channel 2110, which is arranged in the welded body 210 and located on the first side of the welded joint 220, and the first channel 2110 extends along the axial direction of the welded body 210; a second channel 2111, which is arranged in the welded body 210 and extends along the axial direction of the welded body 210, the second channel 2111 is located on the second side of the welded joint 220, and the second channel 2111 communicates with the liquid outlet end of the first channel 2110. The cooling medium flows through the first channel 2110 and the second channel 2111 in sequence and then is discharged from the welded body 210. By arranging the first channel 2110 and the second channel 2111 on both sides of the welded joint 220, the cooling medium can flow around the electrode instead of just flowing on one side. This way can distribute the cooling effect more evenly, avoid local overheating of the electrode, thus prolong the service life of the electrode and reduce the welding interruption caused by electrode damage.

[0058] Wherein, the first channel 2110 and the second channel 2111 are communicated through a third channel 2112, and the third channel 2112 extends along the radial direction of the welded body 210. The cooling medium first flows through the first channel 2110, and then through the connection between the third channel 2112 and the second channel 2111, changes the flow direction and continues the cooling process. This orderly two-way flow path ensures the maximum utilization efficiency of the cooling medium, reduces the turbulence and dead zones during the medium flow, avoids bubble formation, and improves the heat transfer performance of the medium.

[0059] In this application, the connection joint 320 includes a first connection joint 328 and a second connection joint 329. The welded structure 200 further includes: a first extended body 230, which is arranged on the welded body 210, and a liquid inlet channel 231 is arranged in the first extended body 230, and the liquid inlet channel 231 communicates with the first channel 2110, and the first connection joint 328 is connected to the first extended body 230; a second extended body 240, which is arranged on the welded body 210, and a liquid outlet channel 241 is arranged in the second extended body 240, and the liquid outlet channel 241 communicates with the second channel 2111, and the second connection joint 329 is connected to the second extended body 240; wherein, the first extended body 230 and the second extended body 240 are respectively located at one end of the welded body 210 away from the welding end. In the design, the liquid inlet channel 231 is directly communicated with the first channel 2110, and the liquid outlet channel 241 is directly communicated with the second channel 2111, realizing the efficient introduction and export of the cooling medium. This layout reduces the ineffective bending and length in the flow path of the cooling medium, improves the circulation speed of the medium, and thus enhances the cooling effect.

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

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

[0062] The welding structure 200 further includes: a welding joint 220, which is inserted into the welding body 210; a clamping member 250, which is inserted on the welding body 210. The clamping member 250 includes a plurality of jaws 251, and the plurality of jaws 251 are arranged around the welding joint 220; a fixing member 260, which is sleeved on the clamping member 250 and connected to the welding body 210. Through the fixing member 260, each jaw 251 clamps the welding joint 220. Specifically, the clamping member 250 includes a mounting body 252, the mounting body 252 is inserted on the welding body 210, and the plurality of jaws 251 are arranged at intervals along the circumferential direction of the mounting body 252. The mounting body 252 provides stable support for each jaw 251. The annular layout of the plurality of jaws 251 can apply forces equally from all directions to the welding joint 220, ensuring its precise 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 relative to the electrode within a certain range to meet the requirements of different welding application scenarios. 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] Due to the uniformly distributed clamping force, the electrode is more evenly stressed during the welding process, reducing electrode wear or damage caused by excessive local pressure. In addition, the locking mechanism of the fixing member 260 can effectively prevent unnecessary movement of the electrode during the welding process, further extending the service life of the electrode.

[0064] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0065] According to the welding robot provided by the present application, it includes a body 100, a welding structure 200, and a cooling assembly 300. The welding structure 200 is arranged on the body 100. The welding structure 200 includes a welding body 210, and a cooling flow channel 211 is arranged inside the welding body 210. The cooling assembly 300 includes a transmission pipe fitting 310 and a connection joint 320. A communication channel 321 is arranged inside the connection joint 320. The connection joint 320 is respectively connected to the transmission pipe fitting 310 and the welding body 210. The cooling flow channel 211 is communicated with the transmission pipe fitting 310 through the communication channel 321, so that the cooling medium flows through the transmission pipe fitting 310 and the communication channel 321 in sequence and then flows into the cooling flow channel 211 to cool the welding body 210. Among them, at least part of the connection joint 320 is rotatably arranged along a predetermined track, and the transmission pipe fitting 310 is a flexible part. The transmission pipe fitting 310 and the connection joint 320 in the cooling assembly 300 are designed to be closely connected to the welding body 210, ensuring that the cooling medium can quickly and directly flow into the cooling flow channel 211 to efficiently cool the electrode part. The optimized layout of the cooling flow channel 211 enables the cooling medium to form a local high-speed circulation inside the welding body 210, quickly taking away the heat generated during the welding process, significantly improving the cooling efficiency, avoiding the decline of welding quality and electrode loss caused by overheating of the electrode. At the same time, the rotatable characteristic of the connection joint 320, combined with the flexible design of the transmission pipe fitting 310, enables the cooling assembly to still maintain the continuous supply of the cooling medium when the welding robot performs multi-axis movement and posture transformation, without being affected by the posture of the welding torch. This design greatly enhances the flexibility and adaptability of the welding torch in complex welding tasks. The operator or the robot control system can freely adjust the angle of the welding torch without worrying about the failure of the cooling system.

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

[0067] Unless otherwise specifically noted, the relative arrangements of components and steps, numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationships. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the said technologies, methods, and devices should be regarded as part of the specification. In all the examples shown and discussed here, any specific values should be construed as merely exemplary and not as a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that like reference numerals and letters denote like items in the following drawings, and thus, 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", "over", "on the upper surface", "above-mentioned", etc. may be used herein to describe the spatial positional relationship of one device or feature to other devices or features as shown in the figures. It should be understood that the spatial relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figure is inverted, a device described as "above" or "over" other devices or structures will then be positioned "below" or "beneath" the other devices or structures. Thus, the exemplary term "above" can include both the orientations of "above" and "below". The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and corresponding interpretations should be made for the spatial relative descriptions used herein.

[0069] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly dictates otherwise, the singular forms are also intended to include the plural forms. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they specify the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0070] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings 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 may be interchanged where appropriate so that the embodiments of the present application described herein can be implemented in an order different from those illustrated or described herein.

[0071] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A welding robot, characterized in that, Comprising: A body (100), the position of the body (100) being movably arranged; A welding structure (200), arranged on the body (100), the welding structure (200) comprising a welding body (210), and a cooling flow channel (211) being arranged inside the welding body (210); A cooling assembly (300), the cooling assembly (300) comprising a transmission pipe fitting (310) and a connection joint (320), a communication channel (321) being arranged inside the connection joint (320), the connection joint (320) being respectively connected to the transmission pipe fitting (310) and the welding body (210), and the cooling flow channel (211) being communicated with the transmission pipe fitting (310) through the communication channel (321), so that a cooling medium sequentially flows through the transmission pipe fitting (310) and the communication channel (321) and then flows into the cooling flow channel (211) to cool the welding body (210); Wherein, at least a part of the connection joint (320) is rotatably arranged along a predetermined trajectory, and the transmission pipe fitting (310) is a flexible member.

2. The welding robot according to claim 1, wherein The connection joint (320) comprises: A first connection body (322), connected to the welding body (210), a rotation cavity (3220) being arranged inside the first connection body (322), and at least a part of the inner wall surface of the rotation cavity (3220) being a first arc surface; A second connection body (323), arranged inside the rotation cavity (3220), at least a part of the outer surface of the second connection body (323) being a second arc surface, and the second arc surface being attached to the first arc surface, so that the second connection body (323) is rotatably arranged relative to the first connection body (322), and the communication channel (321) is arranged inside the second connection body (323).

3. The welding robot according to claim 2, characterized in that, The connection joint (320) further comprises: A first sealing member (324), arranged between the first connection body (322) and the second connection body (323), at least a part of the first sealing member (324) being elastically arranged, and the first connection body (322) and the second connection body (323) being respectively attached to the first sealing member (324).

4. The welding robot according to claim 2, characterized in that A first through opening (3221) is arranged on the first connection body (322), and the connection joint (320) further comprises: An extension body (325), arranged on the second connection body (323), at least a part of the extension body (325) passing through the first through opening (3221) into the cooling flow channel (211), the extension body (325) being in clearance fit with the first through opening (3221), and a transition channel (3250) communicated with the communication channel (321) being arranged inside the extension body (325).

5. The welding robot according to claim 2, wherein The connection joint (320) further comprises: A second sealing member (326) is disposed between the first connection body (322) and the welding body (210), and the second sealing member (326) is in interference fit with the first connection 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 an external thread, and the connection joint (320) further includes: A locking body (327) is disposed on the first connection 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) further includes: A support member (330) is inserted into the transmission pipe fitting (310), the support member (330) is in contact with the wall surface of the transmission pipe fitting (310), and the support member (330) is an elastic member.

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

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

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

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