A liquid cooling plate water nozzle riveting welding device
By designing a riveting and welding device for liquid-cooled plate water nozzles and adopting automated control and laser welding technology, the problem of difficulty in controlling the force and direction during the riveting and welding process of liquid-cooled plate water nozzles was solved, realizing fast and automated riveting and welding, and improving production efficiency and welding quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG INNOVATION LASER EQUIP CO LTD
- Filing Date
- 2025-07-28
- Publication Date
- 2026-07-07
AI Technical Summary
During the riveting and welding process of liquid cooling plate water nozzles, the force and direction are difficult to control, resulting in unsatisfactory welding results. Moreover, manual operation is time-consuming and labor-intensive, making it difficult to meet the needs of mass production.
A water nozzle riveting and welding device for liquid-cooled plates was designed. It adopts an automated control method, and realizes standardized riveting and welding of water nozzles by using a hydraulic cylinder and a laser welding gun in conjunction with the rotation of a circular plate. The clamping device and the rotating mechanism ensure the riveting accuracy and welding quality.
It enables rapid and automated riveting and welding of liquid cooling plate water nozzles, improving production efficiency and welding effect, making it suitable for mass production and simplifying the operation process.
Smart Images

Figure CN224464130U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of radiator manufacturing technology, and in particular to a water nozzle riveting and welding device for liquid cooling plates. Background Technology
[0002] A liquid cooling plate is a device used for heat dissipation that transfers heat through the circulation of liquid within closed channels. Liquid cooling plates are typically made of sheet metal with a complex internal flow channel design. During operation, heat generated by the heat-generating components is transferred to the liquid cooling plate. The liquid flows through the channels, carrying away the heat, which is then dissipated into the surrounding environment through components such as radiators.
[0003] The liquid cooling plate is equipped with water nozzles, including inlet and outlet nozzles. These nozzles are typically installed on the liquid cooling plate using a riveting and welding method. In this process, the nozzles are usually riveted into the weld joint by hammering. However, due to the difficulty in controlling the force and direction during hammering, the riveting effect is poor, leading to unsatisfactory subsequent welding results and ultimately, a substandard finished product, affecting its use. Furthermore, a liquid cooling plate includes at least two nozzles, an inlet and an outlet. When processing a large number of liquid cooling plates, this results in a large workload, is time-consuming and labor-intensive, and is detrimental to improving production efficiency. Therefore, we have designed a water nozzle riveting and welding device for liquid cooling plates. Utility Model Content
[0004] The purpose of this invention is to provide a water nozzle riveting and welding device for liquid cooling plates to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A water nozzle riveting and welding device for a liquid cooling plate includes a worktable with legs at each of the four corners of its bottom. A circular plate is rotatably mounted on the top of the worktable, and an external gear ring is fitted around the outer side of the circular plate. A clamping shell is located on one side of the top of the circular plate. A pressure plate is slidably mounted inside the clamping shell. A connecting plate is located at the center of the top of the pressure plate, and the other end of the connecting plate slides through the clamping shell and is connected to a handle. Sliding rods are located at the four corners of the top of the pressure plate, and the top ends of the sliding rods slide through the clamping shell and are connected to limit blocks. Springs are fitted around the outside of the sliding rods. A threaded rod is rotatably mounted between the lower parts of the inner walls on the left and right sides of the clamping shell. A second threaded rod is located on the outer side of the clamping shell. Two motors are used. The output shaft of the second motor is connected to one end of a threaded rod. A movable bearing plate is fitted onto the outer thread of the threaded rod. A fixed bearing plate is provided on the top surface of the circular plate and outside the clamping shell. A U-shaped frame covering the outer perimeter of the circular plate is provided on the top of the workbench. A mounting frame is provided at the center of the inner top wall of the U-shaped frame. A hydraulic cylinder is provided on the mounting frame. A pressure head is connected to the output end of the hydraulic cylinder. A mounting bracket is provided on the outer side of the mounting frame. The other end of the mounting bracket is inclined and equipped with a laser welding gun. A clearance hole is opened on the top of the fixed bearing plate, corresponding to the riveting weld on the liquid cooling plate. The axis of the clearance hole is collinear with the axis of the circular plate.
[0007] As a preferred embodiment of this utility model: a first motor is provided at the bottom of the workbench, the output of the first motor passes through the workbench and is connected to a drive gear, the drive gear is rotatably disposed on the top surface of the workbench, and the drive gear is meshed with an external gear ring.
[0008] As a further preferred embodiment of this utility model: two guide rods are also fixedly provided between the inner walls of the left and right sides of the clamping shell. The two guide rods are symmetrically arranged on the front and rear sides of the threaded rod, and the movable bearing plate is slidably sleeved on the outside of the guide rods.
[0009] As a further preferred embodiment of this utility model: the movable support plate is located inside the clamping shell and is slidably disposed on the top surface of the circular plate.
[0010] As a further preferred embodiment of this utility model: the structural dimensions of the fixed bearing plate are larger than those of the movable bearing plate, and the movable bearing plate is slidably disposed on one side of the fixed bearing plate.
[0011] As a further preferred embodiment of this utility model: one end of the spring is connected to the bottom surface of the limiting block, and the other end is connected to the top surface of the clamping shell.
[0012] As a further preferred embodiment of this utility model, the clearance hole is located directly below the pressure head.
[0013] The beneficial effects of this utility model are: This device abandons the traditional manual hammering operation, standardizes the control of the force and direction of the riveting process, has a fast riveting speed and good effect, and has a high degree of automation throughout the process. By controlling the automatic rotation of the workpiece in conjunction with the laser welding gun, it realizes rapid welding operations. It can quickly rivet and weld water nozzles at different positions on the liquid cooling plate. The operation is simple and convenient, saves time and effort, is suitable for mass production, and helps to improve production efficiency. Attached Figure Description
[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0015] Figure 1 This is a perspective view of the overall structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the overall structure of this utility model from another perspective;
[0017] Figure 3 for Figure 1 Enlarged view of point A in the middle;
[0018] Figure 4 This is a partial structural schematic diagram of the present invention.
[0019] The components are as follows: 1. Workbench; 2. Support leg; 3. First motor; 4. Drive gear; 5. Circular plate; 6. U-shaped frame; 7. Handle; 8. Connecting plate; 9. Limiting block; 10. Clamping shell; 11. External gear ring; 12. Second motor; 13. Fixed bearing plate; 14. Clearance hole; 15. Mounting bracket; 16. Guide rod; 17. Spring; 18. Pressure plate; 19. Laser welding gun; 20. Pressure head; 21. Hydraulic cylinder; 22. Mounting frame; 23. Slide rod; 24. Threaded rod; 25. Moving bearing plate. Detailed Implementation
[0020] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.
[0021] Please see Figure 1-4In this embodiment of the present invention, a water tap riveting and welding device for a liquid cooling plate includes a workbench 1 with legs 2 at each of the four corners of the bottom. A circular plate 5 is rotatably mounted on the top of the workbench 1. An external gear ring 11 is fitted on the outer side of the circular plate 5. A clamping shell 10 is provided on one side of the top of the circular plate 5. A pressure plate 18 is slidably mounted inside the clamping shell 10. A connecting plate 8 is provided at the center of the top of the pressure plate 18. The other end of the connecting plate 8 slides through the clamping shell 10 and is connected to a handle 7. Sliding rods 23 are provided at the four corners of the top of the pressure plate 18. The top of the sliding rods 23 slides through the clamping shell 10 and is connected to a limit block 9. A spring 17 is fitted on the outside of the sliding rods 23. One end of the spring 17 is connected to the bottom surface of the limit block 9, and the other end is connected to the top surface of the clamping shell 10. Threaded rods are rotatably mounted between the lower parts of the inner walls on the left and right sides of the clamping shell 10. 24. A second motor 12 is provided on the outside of the clamping housing 10. The output shaft of the second motor 12 is connected to one end of the threaded rod 24. A movable bearing plate 25 is threaded on the outside of the threaded rod 24. A fixed bearing plate 13 is provided on the top surface of the circular plate 5 outside the clamping housing 10. A U-shaped frame 6 covering the periphery of the circular plate 5 is provided on the top of the workbench 1. A mounting frame 22 is provided at the center of the inner top wall of the U-shaped frame 6. A hydraulic cylinder 21 is provided on the mounting frame 22. A pressure head 20 is connected to the output end of the hydraulic cylinder 21. A mounting bracket 15 is provided on the outside of the mounting frame 22. The other end of the mounting bracket 15 is inclined and a laser welding gun 19 is installed. A clearance hole 14 corresponding to the riveting weld on the liquid cooling plate is opened on the top of the fixed bearing plate 13. The axis of the clearance hole 14 is collinear with the axis of the circular plate 5. The clearance hole 14 is located directly below the pressure head 20.
[0022] The bottom of the workbench 1 is provided with a first motor 3. The output of the first motor 3 passes through the workbench 1 and is connected to a drive gear 4. The drive gear 4 is rotatably mounted on the top surface of the workbench 1 and meshes with the external gear ring 11.
[0023] Two guide rods 16 are fixedly installed between the inner walls of the left and right sides of the clamping housing 10. The two guide rods 16 are symmetrically arranged on the front and rear sides of the threaded rod 24, and the movable bearing plate 25 is slidably sleeved on the outside of the guide rods 16.
[0024] The movable support plate 25 is located inside the clamping housing 10 and is slidably disposed on the top surface of the circular plate 5. The structural dimensions of the fixed support plate 13 are larger than those of the movable support plate 25, and the movable support plate 25 is slidably disposed on one side of the fixed support plate 13.
[0025] Specifically, in use, the operator first lifts the connecting plate 8 and the pressure plate 18 upwards using the handle 7, then places the liquid cooling plate on top of the movable support plate 25, ensuring the water outlet and water inlet are exposed outside the clamping housing 10. Next, the second motor 12 is started, driving the threaded rod 24 to rotate, which in turn moves the movable support plate 25, and consequently the liquid cooling plate, controlling its movement to a suitable position so that the riveting weld joint on the liquid cooling plate is directly above the clearance hole 14. Then, the handle 7 is released, and under the action of multiple springs 17, the pressure plate 18 presses against the liquid cooling plate, providing a limiting and fixing function, thus facilitating the riveting operation of the corresponding water nozzles. After riveting, the first motor 3 is started, which drives the circular plate 5 to rotate through the meshing action of the drive gear 4 and the external gear ring 11, thereby causing the liquid cooling plate body and the riveted water nozzles to rotate together. The rotation center axis is the center axis of the riveting weld joint that needs to be processed at this time. At this time, the position of the laser welding gun 19 remains unchanged. With the water nozzle rotating one revolution, the laser welding gun 19 completes the laser welding operation. Then, the pressure plate 18 is lifted upward by the handle 7, and the second motor 12 is started. This controls the moving support plate 25 to move the liquid cooling plate, so that another riveting weld joint on the liquid cooling plate is moved directly above the clearance hole 14. The above riveting and welding process is repeated to complete the processing of one workpiece. This device abandons the traditional manual hammering operation. The force and direction of the riveting process are standardized and controlled. The riveting speed is fast and the effect is good. The whole process is highly automated. By controlling the automatic rotation of the workpiece in conjunction with the laser welding gun 19, rapid welding operation is achieved. It can quickly rivet and weld water nozzles at different positions on the liquid cooling plate. The operation is simple and convenient, saving time and labor. It is suitable for mass production and helps to improve production efficiency.
[0026] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.
Claims
1. A water tap riveting and welding device for liquid-cooled plates, comprising a worktable (1) with legs (2) at each of the four corners of the bottom; characterized in that: The top of the workbench (1) is rotatably provided with a circular plate (5), and an external gear ring (11) is fitted on the outer side of the circular plate (5). A clamping shell (10) is provided on one side of the top of the circular plate (5). A pressure plate (18) is slidably provided inside the clamping shell (10). A connecting plate (8) is provided at the center of the top of the pressure plate (18). The other end of the connecting plate (8) slides through the clamping shell (10) and is connected to a handle (7). Slide rods (23) are provided at the four corners of the top of the pressure plate (18). The top of the slide rods (23) slides through the clamping shell (10) and is connected to a limit block (9). A spring (17) is fitted on the outside of the slide rods (23). A threaded rod (24) is rotatably provided between the lower parts of the inner walls on the left and right sides of the clamping shell (10). A second motor (12) is provided on the outside of the clamping shell (10). The output shaft of the second motor (12) One end of the threaded rod (24) is connected to the threaded rod (24), and the threaded rod (24) is fitted with a movable bearing plate (25). The top surface of the circular plate (5) and the outside of the clamping shell (10) are provided with a fixed bearing plate (13). The top of the workbench (1) is provided with a U-shaped frame (6) covering the periphery of the circular plate (5). The center of the inner top wall of the U-shaped frame (6) is provided with a mounting frame (22). The mounting frame (22) is provided with a hydraulic cylinder (21). The output end of the hydraulic cylinder (21) is connected to a pressure head (20). The outside of the mounting frame (22) is provided with a mounting bracket (15). The other end of the mounting bracket (15) is inclined and is equipped with a laser welding gun (19). The top of the fixed bearing plate (13) is provided with a clearance hole (14) corresponding to the riveting weld on the liquid cooling plate. The axis of the clearance hole (14) is collinear with the axis of the circular plate (5).
2. The water tap riveting and welding device for a liquid cooling plate according to claim 1, characterized in that: The bottom of the workbench (1) is provided with a first motor (3). The output of the first motor (3) passes through the workbench (1) and is connected to a drive gear (4). The drive gear (4) is rotatably mounted on the top surface of the workbench (1). The drive gear (4) meshes with the external gear ring (11).
3. The water nozzle riveting and welding device for a liquid cooling plate according to claim 2, characterized in that: Two guide rods (16) are fixedly provided between the inner walls of the left and right sides of the clamping shell (10). The two guide rods (16) are symmetrically arranged on the front and rear sides of the threaded rod (24). The movable bearing plate (25) is slidably sleeved on the outside of the guide rods (16).
4. The water nozzle riveting and welding device for a liquid cooling plate according to claim 3, characterized in that: The movable support plate (25) is located inside the clamping shell (10) and is slidably disposed on the top surface of the circular plate (5).
5. The water nozzle riveting and welding device for a liquid cooling plate according to claim 1, characterized in that: The fixed bearing plate (13) has a larger structural size than the movable bearing plate (25), and the movable bearing plate (25) is slidably disposed on one side of the fixed bearing plate (13).
6. The water nozzle riveting and welding device for a liquid cooling plate according to claim 5, characterized in that: One end of the spring (17) is connected to the bottom surface of the limiting block (9), and the other end is connected to the top surface of the clamping shell (10).
7. The water nozzle riveting and welding device for a liquid cooling plate according to claim 6, characterized in that: The clearance hole (14) is located directly below the pressure head (20).