Water cooling structure of flange welding robot
By using a water cooling system with a gradient cooling pipe and magnetic balls to regulate the flow rate, the problem of low cooling efficiency of welding robot torches has been solved, achieving efficient and uniform cooling and extended lifespan of the torches.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-02-03
- Publication Date
- 2026-04-03
AI Technical Summary
Existing welding robots use inefficient cooling methods that cannot achieve precise and efficient temperature control, resulting in decreased welding torch performance and shortened service life.
A water-cooling system with a gradient cooling pipe structure and magnetic ball flow rate regulation, combined with temperature monitoring equipment, enables dynamic control of the cooling medium flow rate, ensuring uniform cooling of the welding torch.
It achieves efficient and uniform cooling of the welding torch, extends the service life of the welding torch, saves energy, and improves the stability of welding quality.
Smart Images
Figure CN121776753A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of flange welding equipment technology, and in particular to a water-cooled cooling structure for a flange welding robot. Background Technology
[0002] In flange welding operations, the welding robot's welding torch works continuously in a high-temperature welding environment. The accumulation of high temperature over a long period of time will cause the performance of the welding torch to decline. This will not only affect the quality and stability of the welded joint, resulting in problems such as poor weld formation and coarse grains, but may also shorten the service life of the welding torch. In severe cases, it may even cause damage to the welding torch components, leading to the interruption of the welding operation.
[0003] Existing cooling methods for welding torches are mostly simple air cooling or fixed-flow water cooling structures. Air cooling has low cooling efficiency and cannot meet the cooling requirements of high-intensity welding operations. Fixed-flow water cooling structures cannot dynamically adjust the flow rate of the cooling medium according to the actual temperature of the welding torch. When the welding torch temperature is low, excessive flow of cooling medium will cause energy waste. When the welding torch temperature rises, the fixed flow rate is not enough to quickly remove heat, resulting in poor cooling effect and failure to achieve precise and efficient temperature control. Summary of the Invention
[0004] The purpose of this invention is to provide a water-cooled cooling structure for a flange welding robot, aiming to solve the technical problems in the prior art.
[0005] To achieve the above objectives, the present invention employs a water-cooled cooling structure for a flange welding robot, comprising a water-cooling system. The water-cooling system includes an installation cylinder fitted onto the outer wall of a welding torch. A brass bushing is provided inside the installation cylinder, contacting the welding torch. Multiple cooling pipes arranged in a circumferential array are disposed between the installation cylinder and the brass bushing. The inlet and outlet ends of adjacent cooling pipes are arranged oppositely. A water supply assembly and a water recovery assembly are respectively provided at the inlet and outlet ends of the multiple cooling pipes. Flow rate control assemblies are symmetrically arranged at both ends inside the cooling pipes. The flow rate control assembly includes an installation plate disposed on the inner wall of one end of the cooling pipe. The installation plate has a circular groove. An installation frame is disposed inside the cooling pipe, located on the side of the installation plate away from the cooling pipe port. A limiting post coinciding with the axis of the cooling pipe is provided on the installation frame. A magnetic ball adapted to the circular groove is slidably disposed on the limiting post. The gap between the circular groove and the magnetic ball forms a flow channel. Two control components are symmetrically arranged on the outer wall of the installation cylinder.
[0006] The mounting cylinder has two symmetrically arranged sliding grooves on its outer side wall. The control component includes a movable ring that is slidably disposed in the sliding groove. A magnetic ring is disposed on the side of the movable ring near the mounting cylinder. The magnetic ring and a plurality of magnetic balls at one end of the cooling pipe are on the same plane, and the plurality of magnetic balls can be controlled to move synchronously.
[0007] The cross-sectional structure of the cooling pipe includes a horizontally arranged rectangular base, vertical sidewalls extending upward from both sides of the base, flanges extending horizontally inward from the top of the sidewalls, and an arc-shaped top wall connecting the two flanges, wherein the arc-shaped top wall and the sidewalls are connected by a rounded corner transition.
[0008] The cooling pipe has a gradient structure, with the cross-sectional profiles at both ends being exactly the same but facing opposite directions. In the transition section between the two ends, the geometry of the cross-sectional profile of the cooling pipe remains unchanged, and the orientation change is achieved only through a continuous gradient of spatial posture.
[0009] In this configuration, at the water inlet end of the cooling pipe, the base with a larger contact area contacts the brass bushing, while at the water outlet end of the cooling pipe, the arc-shaped top with a smaller contact area gradually contacts the brass bushing.
[0010] In the structure from the water inlet to the water outlet of the cooling pipe, the wall of the cooling pipe gradually thickens, and the heat exchange efficiency between the heat exchange material inside the cooling pipe and the welding torch decreases as the wall of the cooling pipe thickens.
[0011] The water supply component includes two annular diversion pipes located at both ends of the mounting cylinder, and the water inlet ends of the plurality of cooling pipes located at both ends of the mounting cylinder are respectively connected to the two annular diversion pipes. The recovery component includes two annular collecting pipes located at both ends of the two mounting cylinders, and the water outlet ends of the plurality of cooling pipes located at both ends of the mounting cylinder are respectively connected to the two annular collecting pipes.
[0012] A connecting pipe is provided between the two annular diverting pipes and between the two annular collecting pipes. A water guide pipe is provided in the middle section of the connecting pipe. A flexible hose is provided at one end of the water guide pipe. The ends of the two flexible hoses are provided at the inlet and outlet of the water supply equipment. The flexible hoses are fixed to the robotic arm of the welding robot by multiple limiting components.
[0013] The limiting component includes a connecting seat bolted to the robotic arm, a fixing cylinder on the connecting seat, a connecting frame inside the fixing cylinder, and a bearing between the fixing cylinder and the connecting frame to achieve relative rotation. The connecting frame is provided with a rectangular limiting frame for fixing the two hoses.
[0014] The rectangular limiting frame is fitted with rotating rollers on all four sides, and the rotating rollers slide in contact with the limiting frame.
[0015] Beneficial effects: This invention, through the cooperation of a control component and a flow rate control component, utilizes the magnetic adsorption effect of a magnetic ring to simultaneously control the synchronous movement of multiple magnetic balls, quickly adjusting the gap size of the flow channel, thereby achieving precise adjustment of the flow rate of the cooling medium in the cooling pipe. It is convenient to operate and has high adjustment efficiency.
[0016] By combining temperature monitoring equipment, the welding torch temperature can be monitored in real time, and the cooling effect can be dynamically adjusted according to the actual temperature. This avoids the energy waste or insufficient cooling of fixed-flow water cooling structures, and achieves intelligent and efficient cooling.
[0017] The cooling pipe adopts a gradient structure design, with a gradient change in the contact area at both ends and the pipe wall thickness. This makes the heat exchange efficiency of the cooling medium more reasonable during the flow process. Combined with the circumferential array distribution, it ensures that the welding torch is cooled in all directions and uniformly, effectively improving the cooling effect and ensuring the welding quality and the service life of the welding torch.
[0018] The hose is fixed by a limiting component, which has a rotation function and a friction-reducing structure. This allows it to adapt to the movement of the welding robot's robotic arm, preventing the hose from getting tangled or pulled and causing damage. This ensures the stability and service life of the cooling circuit. At the same time, the constant temperature water tank enables the recycling of the cooling medium, making it more energy-efficient and environmentally friendly. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 This is a schematic diagram of the water-cooled cooling structure of the flange welding robot of the present invention.
[0021] Figure 2 This is a schematic diagram of the cooling pipe structure of the present invention.
[0022] Figure 3 This is a schematic diagram of the flow rate control component of the present invention.
[0023] Figure 4 This is a schematic diagram of the installation direction of the cooling pipe in the mounting cylinder according to the present invention.
[0024] Figure 5This is a schematic diagram of the moving ring and magnetic ring of the present invention.
[0025] Figure 6 This is a schematic diagram of the limiting component of the present invention.
[0026] Figure 7 This is a schematic diagram of the structure of the moving ring and multiple cooling pipes of the present invention.
[0027] Figure 8 yes Figure 7 Enlarged view of point A in the middle.
[0028] 101-Installation cylinder, 102-Brass bushing, 103-Cooling pipe, 104-Base, 105-Side wall, 106-Arc-shaped top wall, 107-Installation plate, 108-Circular groove, 109-Installation bracket, 110-Limiting post, 111-Magnetic ball, 112-Slide groove, 113-Moving ring, 114-Magnetic ring, 115-Annular diverter pipe, 116-Annular collector pipe, 117-Connecting pipe, 118-Guide pipe, 119-Connecting seat, 120-Fixed cylinder, 121-Bearing, 122-Connecting bracket, 123-Rectangular limiting frame, 124-Rotating roller, 125-Inlet end of cooling pipe, 126-Outlet end of cooling pipe, 127-Temperature monitoring equipment. Detailed Implementation
[0029] Please see Figures 1-8 ,in, Figure 1 This is a schematic diagram of the water-cooling structure for the flange welding robot of the present invention. Figure 2 This is a schematic diagram of the cooling pipe structure of the present invention. Figure 3 This is a schematic diagram of the flow rate control component of the present invention. Figure 4 This is a schematic diagram of the installation direction of the cooling pipe inside the mounting cylinder according to the present invention. Figure 5 This is a schematic diagram of the moving ring and magnetic ring of the present invention. Figure 6 This is a schematic diagram of the limiting component of the present invention. Figure 7 This is a schematic diagram of the structure of the moving ring and multiple cooling pipes of the present invention. Figure 8 yes Figure 7 Enlarged view of point A in the middle.
[0030] This invention provides a water-cooled cooling structure for a flange welding robot, including a water-cooling system. The water-cooling system includes an installation cylinder 101 fitted onto the outer wall of a welding torch. A brass bushing 102, in contact with the welding torch, is disposed inside the installation cylinder 101 and the brass bushing 102. Multiple cooling pipes 103 are arranged in a circumferential array between the installation cylinder 101 and the brass bushing 102. The inlet and outlet ends of adjacent cooling pipes 103 are arranged oppositely. A water supply assembly and a water recovery assembly are respectively provided at the inlet and outlet ends of the multiple cooling pipes 103. Flow rate control components are symmetrically arranged at both ends inside the cooling pipes 103. The device includes an installation plate 107 disposed on the inner wall of one end of a cooling pipe 103. The installation plate 107 has a circular groove 108. An installation bracket 109 is disposed inside the cooling pipe 103. The installation bracket 109 is located on the side of the installation plate 107 away from the port of the cooling pipe 103. A limiting post 110 is disposed on the installation bracket 109 and coincides with the axis of the cooling pipe 103. A magnetic ball 111 adapted to the circular groove 108 is slidably disposed on the limiting post 110. The gap between the circular groove 108 and the magnetic ball 111 forms a flow channel. Two control components are symmetrically disposed on the outer wall of the installation cylinder 101.
[0031] In this embodiment, the mounting cylinder 101 is made of a high-temperature and corrosion-resistant alloy material. Its inner diameter is matched with the outer wall size of the welding torch. A secure connection with the welding torch is achieved through a snap-fit or bolt fixing structure, ensuring no relative displacement occurs during the welding robot's operation. A brass bushing 102 fits tightly between the inner wall of the mounting cylinder 101 and the outer wall of the welding torch. Brass combines excellent thermal conductivity with a certain degree of elasticity, enabling rapid heat conduction from the welding torch and compensating for installation errors through its own slight deformation, ensuring full contact with the welding torch and preventing a decrease in heat conduction efficiency due to contact gaps. A temperature monitoring device 127 is installed at one end of the mounting cylinder 101. The temperature monitoring device 127 uses a contact-type temperature sensor, with its probe in close contact with the brass bushing 102. Temperature data is transmitted in real-time to the welding robot's control system or an external display screen via a wire or wireless transmission module. The temperature monitoring device 127 has a measurement range of 0-500℃ and a measurement accuracy of ±1℃, accurately capturing temperature changes in the welding torch. The control system can preset the optimal operating temperature range of the welding torch. When the temperature exceeds the upper limit, an alarm is issued, and the operator drives the moving ring 113 to move away from the mounting plate 107, increasing the gap in the flow channel, accelerating the flow rate of the cooling medium, and improving the cooling efficiency. When the temperature is below the lower limit, the moving ring 113 is automatically driven to move in the opposite direction, reducing the gap, decreasing the flow rate, and saving energy. When the temperature is within the preset range, the current flow rate is kept constant, realizing automatic closed-loop control of the cooling effect.
[0032] Furthermore, two sliding grooves 112 are symmetrically arranged on the outer side wall of the mounting cylinder 101. The control component includes a movable ring 113 that is slidably disposed in the sliding groove 112. A magnetic ring 114 is disposed on the side of the movable ring 113 near the mounting cylinder 101. The magnetic ring 114 and a plurality of magnetic balls 111 at one end of the cooling pipe 103 are on the same plane, and the plurality of magnetic balls 111 can be controlled to move synchronously.
[0033] In this embodiment, the inner wall of the moving ring 113 slides against the outer wall of the mounting cylinder 101, and the groove 112 extends axially along the mounting cylinder 101, providing a stable sliding guide for the moving ring 113. The magnetic ring 114 is made of a strong magnetic permanent magnet material and is connected to the moving ring 113 by bonding or bolting. Its magnetic field strength can be designed to match the number of cooling pipes 103 and the magnetic parameters of the magnetic balls 111, ensuring that a uniform and sufficient adsorption force is generated on all magnetic balls 111. When the operator pushes the moving ring 113 to slide along the groove 112, the magnetic ring 114 moves synchronously with it, and through the magnetic field, it drives multiple magnetic balls 111 to slide synchronously along the limiting post 110, realizing synchronous adjustment of the flow channel gap. It is not necessary to adjust the flow rate of each cooling pipe 103 individually, which greatly improves the adjustment efficiency and consistency. In addition, the moving ring 113 can also be equipped with scale marks and positioning pins to facilitate the operator to accurately control the position of the magnetic ring 114 and realize quantitative adjustment of the flow rate.
[0034] Furthermore, the cross-sectional structure of the cooling pipe 103 includes a horizontally arranged rectangular base 104, vertical sidewalls 105 extending upward from both sides of the rectangular base 104, a flange extending horizontally inward from the top of the vertical sidewall 105, and an arc-shaped top wall 106 connecting the two flanges, wherein the arc-shaped top wall 106 and the vertical sidewall 105 are transitioned by rounded corners.
[0035] In this embodiment, the cooling pipe 103 is integrally formed from copper material with excellent thermal conductivity. The width of the rectangular base 104 accounts for 60%-70% of the total cross-sectional width, providing sufficient contact area for heat conduction. The height of the vertical sidewall 105 is designed according to the gap between the mounting cylinder 101 and the brass bushing 102, ensuring that the cooling pipe 103 can be stably embedded in the installation space. The flange enhances the structural strength of the cooling pipe 103, preventing deformation during installation and use. The radius of curvature of the arc-shaped top wall 106 is adapted to the flange width, and the rounded corner transition structure reduces eddy current loss of the cooling medium during flow, lowering flow resistance. The cross-sectional dimensions of the cooling pipe 103 have been optimized through fluid dynamics simulation, ensuring structural strength while allowing the cooling medium to flow in the optimal state, thus improving heat exchange efficiency.
[0036] Furthermore, the cooling pipe 103 has a gradient structure, with the cross-sectional profiles of its two ends being exactly the same but facing opposite directions. In the transition section between the two end faces of the cooling pipe 103, the geometry of its cross-sectional profile remains unchanged, and the orientation change is achieved only through the continuous gradient of its spatial posture.
[0037] In this embodiment, the length of the gradual transition section of the cooling pipe 103 is 70%-80% of the total length of the cooling pipe. This gradual change in spatial orientation is achieved through CNC bending or 3D printing, ensuring that the transition section has no obvious angles or abrupt changes, thus avoiding turbulence and pressure loss during the flow of the cooling medium. This gradual structure allows the inlet and outlet ends of the cooling pipe 103 to adapt to different contact requirements, while ensuring a smooth transition in the flow channel within the pipe, resulting in stable flow of the cooling medium and continuous, uniform heat exchange. Furthermore, both ends of the cooling pipe 103 are equipped with sealing interfaces, which are sealed to the annular branch pipe 115 and the annular collector pipe 116 via sealing rings to prevent cooling medium leakage.
[0038] Furthermore, at the water inlet 125 of the cooling pipe 103, the rectangular base 104 with a larger contact area contacts the brass bushing 102, and at the water outlet 126 of the cooling pipe 103, the arc-shaped top wall 106 with a smaller contact area gradually contacts the brass bushing 102.
[0039] In this embodiment, the contact area between the rectangular base 104 of the water inlet end 125 of the cooling pipe 103 and the brass bushing 102 is 70%-80% of the total contact area of the cooling pipe. At this time, the temperature of the cooling medium is low, and it can quickly absorb the heat transferred by the brass bushing 102 through large-area contact, thus achieving efficient cooling. As the cooling medium flows towards the water outlet end 126, its temperature gradually increases and its heat absorption capacity decreases. The cooling pipe 103 gradually reduces the contact area through a gradient structure. The contact area between the arc-shaped top wall 106 of the water outlet end 126 and the brass bushing 102 is only 20%-30% of the total contact area. This avoids the heat exchange efficiency decay caused by the continuous large-area contact between the high-temperature cooling medium and the brass bushing 102, and at the same time reduces the heat accumulation of the cooling pipe 103 itself, thus extending the service life of the cooling pipe.
[0040] Furthermore, in the structure from the water inlet 125 to the water outlet 126 of the cooling pipe 103, the wall of the cooling pipe 103 gradually thickens, and the heat exchange efficiency between the heat exchange material in the cooling pipe 103 and the welding torch decreases as the wall of the cooling pipe 103 thickens.
[0041] In this embodiment, the wall thickness of the inlet end 125 of the cooling pipe 103 is 1.5-2 mm, and the wall thickness of the outlet end 126 is 3-4 mm, with the wall thickness of the transition section showing a linear gradient. This gradient change in wall thickness, combined with the gradient change in contact area, creates a reasonable gradient distribution of heat exchange efficiency: the thinner wall and larger contact area at the inlet end result in the highest heat exchange efficiency, quickly removing a large amount of heat from the welding torch surface; as the cooling medium absorbs heat and heats up, the wall thickness gradually increases, and the heat exchange efficiency gradually decreases. This avoids the problem of the cooling medium becoming saturated due to heat absorption and failing to effectively cool down, while also reducing heat exchange between the cooling pipe 103 and the external environment, reducing the temperature loss of the cooling medium, and ensuring the stability of the cooling effect.
[0042] Furthermore, the water supply assembly includes two annular diverter pipes 115 located at both ends of the mounting cylinder 101, and the inlet ends 125 of the plurality of cooling pipes 103 located at both ends of the mounting cylinder 101 are respectively connected to the two annular diverter pipes 115. The recovery assembly includes two annular collector pipes 116 located at both ends of the two mounting cylinders 101, and the outlet ends 126 of the plurality of cooling pipes 103 located at both ends of the mounting cylinder 101 are respectively connected to the two annular collector pipes 116.
[0043] In this embodiment, both the annular diverter pipe 115 and the annular collector pipe 116 are made of the same copper material as the cooling pipe 103. Their inner diameter is determined according to the number of cooling pipes 103 and the design flow rate, ensuring that each cooling pipe 103 can receive sufficient cooling medium flow. The inner wall of the annular diverter pipe 115 has an interface corresponding to the water inlet end 125 of the cooling pipe 103. The interface is provided with a sealing groove and a sealing ring, and the sealed connection with the cooling pipe 103 is achieved by threaded connection or welding. The two annular diverter pipes 115 correspond to the water inlet ends 125 of the cooling pipes 103 at both ends of the mounting cylinder 101, and the flow is evenly distributed through the connecting pipe 117 to ensure that the water inlet flow of all cooling pipes 103 is consistent. Similarly, the two annular collector pipes 116 collect the water from the cooling pipes 103 at both ends, and discharge it after being collected through the connecting pipe 117, ensuring smooth recovery of the cooling medium.
[0044] Furthermore, a connecting pipe 117 is provided between the two annular diverting pipes 115 and between the two annular collecting pipes 116. A water guide pipe 118 is provided in the middle section of the connecting pipe 117. A flexible hose 129 is provided at one end of the water guide pipe 118. The ends of the two flexible hoses 129 are provided at the inlet and outlet of the water supply equipment. The flexible hoses 129 are fixed to the robotic arm of the welding robot by multiple limiting components.
[0045] In this embodiment, the connecting pipe 117 is made of stainless steel, and its diameter matches that of the annular branch pipe 115 and the annular manifold 116. A stable connection is achieved through welding, ensuring the pressure resistance and sealing of the pipeline system. The water guide pipe 118 is connected to the connecting pipe 117 using a tee connector, with its axis perpendicular to the axis of the connecting pipe 117, facilitating the connection and arrangement of the flexible hose 129. The flexible hose 129 is made of high-temperature and high-pressure resistant flexible rubber tubing, with a wear-resistant layer and a heat-insulating layer on its inner wall. This allows it to adapt to the movement of the welding robot arm while reducing temperature loss of the cooling medium and pipe wear. The two hoses 129 serve as the inlet and outlet pipes, respectively, and their ends are connected to the outlet and inlet of the water supply equipment (constant temperature water tank) via quick connectors to achieve a circulating supply of the cooling medium. Limiting components are spaced along the length of the robot arm to ensure that the hoses 129 remain orderly during the robot arm's movement, preventing tangling and pulling.
[0046] Furthermore, the limiting component includes a connecting seat 119 bolted to the robotic arm, a fixing cylinder 120 provided on the connecting seat 119, a connecting frame 122 provided inside the fixing cylinder 120, and relative rotation between the fixing cylinder 120 and the connecting frame 122 achieved by a bearing 121. A rectangular limiting frame 123 for fixing the two hoses 129 is provided on the connecting frame 122.
[0047] In this embodiment, the connecting seat 119 is formed by stamping steel plate and fixed to the preset mounting holes of the robotic arm by two high-strength bolts, ensuring a firm fixation and easy disassembly. The fixing cylinder 120 is integrally formed or welded to the connecting seat 119, and a deep groove ball bearing 121 is installed inside. The inner ring of the bearing 121 is interference-fitted with the connecting frame 122, and the outer ring is interference-fitted with the fixing cylinder 120, ensuring that the connecting frame 122 can rotate flexibly. The rectangular limiting frame 123 is made of stainless steel square tube welded together. Its internal width and height are designed according to the outer diameter of the hose 129, ensuring that it can tightly wrap the two parallel hoses 129, while reserving a small amount of room for movement to avoid excessive compression of the hoses 129 and affecting the flow of the medium. When the welding robot arm rotates or swings, the connecting frame 122 can rotate around the bearing 121 with the traction of the hoses 129, keeping the hoses 129 in a natural state and avoiding torsional stress and tensile damage.
[0048] Furthermore, rotating rollers 124 are fitted on all four sides of the rectangular limiting frame 123, and the rotating rollers 124 slide in contact with the rectangular limiting frame 123.
[0049] In this embodiment, the rotating roller 124 is made of wear-resistant plastic or rubber, and its inner diameter is slightly larger than the width of the rectangular limiting frame 123. It is fitted onto the frame by an interference fit or a snap ring, and can rotate freely around the frame. The length of the rotating roller 124 is the same as the length of the rectangular limiting frame 123, and its outer surface is provided with anti-slip texture. This increases the friction with the hose 129, preventing the hose 129 from sliding excessively within the limiting frame, and also reduces frictional loss by rotating itself when the hose 129 moves slightly. When the movement of the robotic arm causes the hose 129 to move slightly within the limiting frame, the rolling friction of the rotating roller 124 replaces the sliding friction, significantly reducing the wear between the hose 129 and the limiting frame, extending the service life of the hose 129, and reducing noise during pipeline operation.
[0050] Working principle: Before the welding robot starts welding operations, the constant temperature water tank is activated to pre-circulate the cooling medium (usually deionized water or a special coolant) in the pipeline system, expelling air from the pipes. During welding, the heat generated by the welding torch is rapidly conducted to the cooling pipe 103 through the tightly fitted brass bushing 102. The rectangular base 104 of the water inlet end 125 of the cooling pipe 103, due to its large contact area and thin wall, can efficiently transfer heat to the cooling medium flowing inside the pipe. As the cooling medium flows within the cooling pipe 103, the contact area of the cooling pipe 103 gradually decreases and the pipe wall gradually thickens as the temperature rises, resulting in a gradient decrease in heat exchange efficiency and preventing the cooling medium from becoming saturated with heat.
[0051] Temperature monitoring device 127 monitors the temperature of brass bushing 102 in real time (indirectly reflecting the welding torch temperature) and transmits the data to the control system. When the temperature exceeds the preset upper limit, the control system drives the moving ring 113 to slide along the slide groove 112, which in turn moves the magnetic ring 114. Through magnetic field adsorption, multiple magnetic balls 111 move away from the mounting plate 107 along the limiting post 110. The gap in the flow channel between the circular groove 108 and the magnetic balls 111 increases, the flow rate of the cooling medium increases, and the heat carried away per unit time increases, achieving rapid cooling. When the temperature is lower than the preset lower limit, the moving ring 113 slides in the opposite direction, the magnetic balls 111 move closer to the mounting plate 107, the gap decreases, the flow rate slows down, and energy consumption is reduced.
[0052] After absorbing heat through cooling pipe 103, the cooling medium flows into annular manifold 116 from outlet 126, then returns to the constant temperature water tank via connecting pipe 117, water guide pipe 118, and hose 129. After cooling, it is then transported back to annular branch pipe 115 for recycling. During the movement of the welding robot arm, hose 129 is fixed by limiting components. Connecting frame 122 can rotate around bearing 121 with the movement of the robot arm. Rotating roller 124 on rectangular limiting frame 123 reduces frictional loss of hose 129, preventing hose 129 from tangling or being pulled and damaged, thus ensuring stable operation of the cooling circuit.
[0053] The above description discloses only one preferred embodiment of the present invention, and should not be construed as limiting the scope of the present invention. Those skilled in the art will understand that all or part of the processes of the above embodiments can be implemented, and equivalent changes made in accordance with the claims of the present invention are still within the scope of the invention.
Claims
1. A water-cooled cooling structure for a flange welding robot, characterized in that, The system includes a water cooling system, which includes an installation cylinder (101) fitted onto the outer wall of the welding torch. The installation cylinder (101) contains a brass bushing (102) that contacts the welding torch. A plurality of cooling pipes (103) arranged in a circumferential array are provided between the installation cylinder (101) and the brass bushing (102). The inlet and outlet ends of two adjacent cooling pipes (103) are arranged oppositely. The inlet and outlet ends of the plurality of cooling pipes (103) are respectively provided with a water supply component and a recovery component. Flow rate control components are symmetrically arranged at both ends inside the cooling pipes (103). The flow rate control component includes an installation plate (107) disposed on the inner wall of one end of the cooling pipe (103). The installation plate (107) has a circular groove (108). An installation bracket (109) is disposed inside the cooling pipe (103). The installation bracket (109) is located on the side of the installation plate (107) away from the port of the cooling pipe (103). A limiting post (110) is disposed on the installation bracket (109) and coincides with the axis of the cooling pipe (103). A magnetic ball (111) adapted to the circular groove (108) is slidably disposed on the limiting post (110). The gap between the circular groove (108) and the magnetic ball (111) forms a flow channel. Two control components are symmetrically disposed on the outer wall of the installation cylinder (101).
2. The water-cooled cooling structure for the flange welding robot as described in claim 1, characterized in that, The outer wall of the mounting cylinder (101) is symmetrically provided with two sliding grooves (112). The control component includes a movable ring (113) that is slidably disposed in the sliding groove (112). A magnetic ring (114) is provided on the side of the movable ring (113) near the mounting cylinder (101). The magnetic ring (114) is on the same plane as a plurality of magnetic balls (111) at one end of the cooling pipe (103), and the plurality of magnetic balls (111) can be controlled to move synchronously.
3. The water-cooled cooling structure for the flange welding robot as described in claim 2, characterized in that, The cross-sectional structure of the cooling pipe (103) includes a horizontally arranged rectangular base (104), vertical sidewalls (105) extending upward from both sides of the rectangular base (104), a flange extending horizontally inward from the top of the vertical sidewall (105), and an arc-shaped top wall (106) connecting the two flanges. The arc-shaped top wall (106) and the vertical sidewall (105) are connected by a rounded corner transition.
4. The water-cooled cooling structure for the flange welding robot as described in claim 3, characterized in that, The cooling pipe (103) has a gradient structure. The cross-sectional profiles of its two ends are exactly the same, but they face opposite directions. In the transition section between the two ends of the cooling pipe (103), the geometry of its cross-sectional profile remains unchanged, and the orientation is changed only through the continuous gradient of its spatial posture.
5. The water-cooled cooling structure for the flange welding robot as described in claim 4, characterized in that, At the water inlet (125) of the cooling pipe (103), the rectangular base (104) with a larger contact area contacts the brass bushing (102), and at the water outlet (126) of the cooling pipe (103), the arc-shaped top wall (106) with a smaller contact area gradually contacts the brass bushing (102).
6. The water-cooled cooling structure for the flange welding robot as described in claim 5, characterized in that, In the structure from the water inlet (125) to the water outlet (126) of the cooling pipe (103), the wall of the cooling pipe (103) gradually becomes thicker, and the heat exchange efficiency between the heat exchange material in the cooling pipe (103) and the welding torch decreases as the wall of the cooling pipe (103) becomes thicker.
7. The water-cooled cooling structure for the flange welding robot as described in claim 6, characterized in that, The water supply assembly includes two annular diverter pipes (115) located at both ends of the mounting cylinder (101). The inlet ends (125) of the plurality of cooling pipes (103) located at both ends of the mounting cylinder (101) are respectively connected to the two annular diverter pipes (115). The recovery assembly includes two annular collector pipes (116) located at both ends of the two mounting cylinders (101). The outlet ends (126) of the plurality of cooling pipes (103) located at both ends of the mounting cylinder (101) are respectively connected to the two annular collector pipes (116).
8. The water-cooled cooling structure for the flange welding robot as described in claim 7, characterized in that, A connecting pipe (117) is provided between the two annular diverting pipes (115) and between the two annular collecting pipes (116). A water guide pipe (118) is provided in the middle section of the connecting pipe (117). A hose (129) is provided at one end of the water guide pipe (118). The ends of the two hoses (129) are provided at the inlet and outlet of the water supply equipment. The hoses (129) are fixed to the robotic arm of the welding robot by multiple limiting components.
9. The water-cooled cooling structure for the flange welding robot as described in claim 8, characterized in that, The limiting component includes a connecting seat (119) bolted to the robotic arm, a fixing cylinder (120) on the connecting seat (119), a connecting frame (122) inside the fixing cylinder (120), relative rotation between the fixing cylinder (120) and the connecting frame (122) achieved by a bearing (121), and a rectangular limiting frame (123) for fixing the two hoses (129) on the connecting frame (122).
10. The water-cooled cooling structure for the flange welding robot as described in claim 9, characterized in that, Rotating rollers (124) are fitted on all four sides of the rectangular limiting frame (123), and the rotating rollers (124) slide in contact with the rectangular limiting frame (123).