A high-efficiency shape-controlling rolling device for multilayer composite liquid cooling plate and a working method thereof

Abstract

The application relates to a multi-layer composite liquid cooling plate high-efficiency shape-controlling rolling device and a working method thereof, which comprises a rack, rotating rollers and rolling mechanisms, a plurality of rotating rollers are installed in the rack, support rotating frames are rotatably installed at the two ends of the rack, translation seats are installed on the two sides of the rack, sliding frames are slidably installed on the two translation seats, a turnover seat is rotatably installed between the two sliding frames, a sliding seat is slidably installed on the turnover seat, a pulse laser head and a scanning head are installed on the sliding seat, and a plurality of rolling mechanisms are installed at the ends of the rack; integration and high efficiency, a plurality of independent procedures such as pretreatment, preheating, rolling and detection are integrated into a continuous production line, intermediate transfer, waiting and secondary processing time are greatly reduced, and the production efficiency is significantly improved.

Description

Technical Field

[0001] This invention relates to the field of multi-layer composite liquid-cooled plate processing technology, and in particular to a high-efficiency shape control rolling device for multi-layer composite liquid-cooled plates and its working method. Background Technology

[0002] Multilayer composite liquid cooling plates, as a highly efficient thermal management solution, are widely used in high-end fields such as aerospace, high-power electronic equipment (such as servers, 5G base stations, and artificial intelligence chips), and new energy vehicle battery packs and electronic control systems due to their advantages such as compact structure, high heat dissipation power density, and good temperature uniformity.

[0003] These liquid cooling plates are typically made of multiple layers of metal sheets (such as copper, aluminum, and stainless steel) through a specific process, with complex microchannels formed inside through etching, machining, and other methods. The core of their manufacturing quality lies in whether a high-strength, defect-free, and fully sealed metallurgical bond can be achieved between the various metal layers.

[0004] The immense pressure of a rolling mill causes plastic deformation in multi-layered metal sheets, achieving mechanical interlocking and atomic diffusion at the interface. However, existing rolling equipment has the following drawbacks: Insufficient surface cleanliness: After traditional offline cleaning (such as chemical cleaning and mechanical polishing), the surface of the board is easily oxidized or contaminated again during transportation and assembly, resulting in defects such as unbonded and inclusions in the composite interface, and low yield. Poor shape control: When rolling on a single stand or with a small number of stands, the deformation is large and difficult to control, easily leading to sheet warping, waviness, and other shape problems, as well as poor thickness accuracy control. The elastic deformation and thermal expansion of the rolls also seriously affect the sheet shape; Poor process flexibility: It is difficult to dynamically and accurately adjust parameters such as roll gap and speed during the rolling process, and it cannot meet the stringent requirements of high-performance liquid-cooled plates for interface bonding and dimensional accuracy. Lagging process quality control: Composite quality (such as bonding rate) and thickness usually need to be detected offline after rolling. By the time problems are discovered, it is too late to make real-time corrections, resulting in waste of materials and time. Summary of the Invention

[0005] The present invention addresses the problem of providing a high-efficiency shape control rolling device for multi-layer composite liquid-cooled plates and its working method, thereby solving the aforementioned technical problems.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A high-efficiency shape control rolling device for multi-layer composite liquid-cooled plates includes a frame, rotating rollers, and rolling mechanisms. Several rotating rollers are installed inside the frame. Support frames are rotatably installed inside both ends of the frame. Translation seats are installed on both sides inside the frame. Sliding frames are slidably installed on two translation seats. A flipping seat is rotatably installed between the two sliding frames. A sliding block is slidably installed on the flipping seat. A pulsed laser head and a scanning head are installed on the sliding block. Several rolling mechanisms are installed sequentially at the end of the frame.

[0007] Preferably, a first motor is installed at both ends of the side wall of the frame, and the output end of the first motor is connected to the support frame.

[0008] Preferably, a second motor is installed at the end of the translation seat, and a first threaded rod is installed inside the translation seat at the output end of the second motor, and the first threaded rod is threadedly connected to the slide frame.

[0009] Preferably, both ends of the flip base are connected to the slide frame bearings, and a third motor is installed in one of the slide frames, with the output end of the third motor connected to the flip base.

[0010] Preferably, a fourth motor is installed in another slide frame and is fixedly connected to the end of the flip seat. The output end of the fourth motor is located in the slide groove of the slide frame and a second threaded rod is installed thereon, and the second threaded rod is threadedly connected to the slide seat.

[0011] Preferably, an insulation heating box is installed at the end of the frame, and an electromagnetic heating coil is installed inside the insulation heating box.

[0012] Preferably, the rolling mechanism includes symmetrically arranged machine bases, each machine base having a lifting groove, a pneumatic cylinder mounted on the machine base, the telescopic end of the pneumatic cylinder being connected to a roller seat in the lifting groove, the roller seat being connected to a first roll, and a second roll being mounted between the two machine bases and below the first roll.

[0013] Preferably, a speed reducer is installed on both the machine base and the roller base, and the output end of the speed reducer is connected to the ends of the first roller and the second roller, respectively, and the input end of the speed reducer is connected to the output end of the fifth motor.

[0014] Preferably, a parallel mounting plate is installed between the bases of the two rolling mechanisms, and a detection component is installed inside the mounting plate, the detection component including a flaw detector and a thickness measuring instrument.

[0015] A method for operating a high-efficiency shape-controlled rolling device for multi-layer composite liquid-cooled plates, the specific operation of which is as follows: Step 1: The bottom panel is transported onto the rotating roller using a hoisting device. At this time, the second motor drives the first threaded rod to rotate, which in turn moves the threaded sliding frame. The flipping seat moves from one end of the bottom panel to the other. Simultaneously, the fourth motor drives the second threaded rod to rotate, which in turn moves the sliding seat horizontally. The pulsed laser head and scanning head move towards the bottom panel to clean the top side of the bottom panel. The first motor drives the support frame to rotate to a vertical position. At this time, the core board is transported onto the support frame. The third motor flips the flipping seat, rotating the pulsed laser head and scanning head towards the bottom side of the core board to clean the bottom side of the core board. Then, the hoisting device lifts the core board, and the support frame rotates to a horizontal position. The hoisting device lifts the core board onto the bottom panel. Then, the pulsed laser head and scanning head flip towards the top side of the core board to clean the top side of the core board. After cleaning the bottom side of the top panel, the top panel is placed on the core board. Step 2: The core plate and the face plate move on the rotating rollers and are preheated when passing through the electromagnetic heating coil of the heat preservation heating box. Then, they enter the rolling mechanism between the first and second rollers for rolling combination. The distance between the first and second rollers of the rolling mechanism is adjusted by a pneumatic cylinder. The distance between the first and second rollers of several rolling mechanisms decreases sequentially from the feed end to the discharge end. The rolled multi-layer composite liquid-cooled plate is inspected by a flaw detector and a thickness measuring instrument. The distance between the first and second rollers is adjusted in real time. The first and second rollers are controlled by different reducers and a fifth motor, thereby adjusting the speed of the first and second rollers separately.

[0016] The beneficial effects of this invention are: integration and high efficiency, integrating multiple independent processes such as pretreatment, preheating, rolling, and testing into a continuous production line, which greatly reduces intermediate transfer, waiting and secondary processing time, and significantly improves production efficiency; Online laser cleaning is used to clean the top side of the bottom panel, the bottom and top sides of the core board, and the bottom side of the top panel in sequence, ensuring the cleanliness of the mating surfaces from the source. By preheating and multi-pass progressive rolling, the composite process conditions were optimized. Through multi-stand precise positioning and online thickness measurement feedback, the thickness tolerance of the finished product was ensured to be extremely small. Asynchronous rolling capability and real-time adjustment mechanism help to obtain composite plates with high flatness. The high degree of automation and intelligence, from automatic feeding and cleaning to online detection and feedback, reduces reliance on operator experience, lowers the risk of human error, and ensures the stability and repeatability of product quality. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall first structure of the present invention; Figure 2 For the present invention Figure 1 Enlarged view of a portion of region A in the middle; Figure 3 This is a first sectional view of the present invention; Figure 4 This is a second sectional view of the present invention; Figure 5 This is a schematic diagram of the overall second structure of the present invention.

[0018] Legend: 1. Frame; 2. Rotary roller; 3. Support frame; 4. First motor; 5. Translation seat; 6. First threaded rod; 7. Second motor; 8. Slide frame; 9. Third motor; 10. Tilting seat; 11. Fourth motor; 12. Slide groove; 13. Second threaded rod; 14. Slide seat; 15. Pulsed laser head; 16. Scanning head; 17. Insulation heating box; 18. Electromagnetic heating coil; 19. Rolling mechanism; 20. Machine base; 21. Pneumatic cylinder; 22. Lifting groove; 23. Roll seat; 24. First roll; 25. Second roll; 26. Reducer; 27. Fifth motor; 28. Mounting plate; 29. ​​Detection components. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Specific implementation examples are given below.

[0021] See Figures 1-5A high-efficiency shape-controlled rolling device for multi-layer composite liquid-cooled plates includes a frame 1, rotating rollers 2, and a rolling mechanism 19. Several rotating rollers 2 are installed inside the frame 1. Supporting rotating frames 3 are rotatably installed inside both ends of the frame 1. Translation seats 5 are installed on both sides inside the frame 1. Sliding frames 8 are slidably installed on each of the two translation seats 5. A flipping seat 10 is rotatably installed between the two sliding frames 8. A sliding seat 14 is slidably installed on the flipping seat 10. A pulsed laser head 15 and a scanning head 16 are installed on the sliding seat 14. First motors 4 are installed at both ends of the sidewalls of the frame 1. The output end of the first motor 4 is connected to the supporting rotating frame 3. A second motor 7 is installed at the end of the translation seat 5. A first threaded rod 6 is installed inside the translation seat 5 at the output end of the second motor 7, and the first threaded rod 6 is threadedly connected to the sliding frame 8. The two ends of the rotating base 10 are connected to the bearings of the slide frame 8. A third motor 9 is installed in one of the slide frames 8, and the output end of the third motor 9 is connected to the rotating base 10. A fourth motor 11 is installed in the other slide frame 8 and is fixedly connected to the end of the rotating base 10. The output end of the fourth motor 11 is located in the slide groove 12 of the slide frame 8 and a second threaded rod 13 is installed. The second threaded rod 13 is threadedly connected to the slide base 14. The threaded rod transmission has self-locking and high precision, ensuring that the laser head is accurately and reliably positioned in every dimension, avoiding shaking or offset during the cleaning process, and ensuring the consistency of the cleaning effect. The independent control of multiple motors enables the pulsed laser head 15 to execute complex synthetic motion trajectories, thereby efficiently and without omission completing the cleaning task of the entire board surface.

[0022] A heat preservation heating box 17 is installed at the end of the frame 1, and an electromagnetic heating coil 18 is installed inside the heat preservation heating box 17. The principle of online electromagnetic induction preheating of the billet before rolling is to generate eddy current heating directly inside the metal through electromagnetic induction. The heat preservation heating box 17 is used to reduce heat loss. Preheating softens the material and significantly reduces its deformation resistance. As a result, the same amount of deformation can be achieved with a smaller rolling force in subsequent rolling, saving energy and reducing the load on the equipment.

[0023] Several rolling mechanisms 19 are sequentially arranged at one end of the frame 1. Each rolling mechanism 19 includes symmetrically arranged bases 20. Each base 20 has a lifting groove 22. A pneumatic cylinder 21 is mounted on the base 20, and the telescopic end of the pneumatic cylinder 21 is connected to a roller seat 23 within the lifting groove 22. The roller seat 23 is connected to a first roll 24. A second roll 25 is installed between the two bases 20 and below the first roll 24. A reducer 26 is installed on both the bases 20 and the roller seat 23. The output end of the reducer 26 is connected to the ends of the first roll 24 and the second roll 25, respectively, and the input end of the reducer 26 is connected to the output end of a fifth motor 27. Parallel mounting brackets are installed between the bases 20 of the two rolling mechanisms 19. The mounting plate 28 contains a detection component 29, which includes a flaw detector and a thickness gauge. Multiple stands 1 have progressively smaller roll gaps, resulting in multi-pass progressive rolling that ensures smooth and uniform material deformation. Combined with the precise adjustment of the pneumatic cylinder 21, the final thickness and shape of the finished plate can be accurately controlled. This improves bonding quality and flexibility. The upper and lower rolls are driven by independent motors, enabling asynchronous rolling. The shear stress generated by asynchronous rolling can more effectively break the oxide film and promote bonding, improving interface strength and increasing process control methods. It ensures consistent and stable quality: the flaw detector and thickness gauge integrated between stands 1 can perform 100% online inspection of the rolled plate. Inspection data can be fed back to the pneumatic cylinder 21 and motor in real time, forming a closed-loop control system that automatically adjusts process parameters and promptly removes defective products, ensuring product quality stability and a very high pass rate. It achieves efficient continuous production by integrating rolling and inspection onto a continuous production line, avoiding intermediate stops and secondary handling, and greatly improving production efficiency.

[0024] Working Principle: The bottom panel is lifted onto the rotating roller 2 by a hoisting device. At this time, the second motor 7 drives the first threaded rod 6 to rotate, which in turn moves the threaded sliding frame 8. The flipping seat 10 moves from one end of the bottom panel to the other. Simultaneously, the fourth motor 11 drives the second threaded rod 13 to rotate, which in turn moves the sliding seat 14 horizontally. The pulsed laser head 15 and scanning head 16 move towards the bottom panel to clean the top side of the bottom panel. The first motor 4 drives the supporting rotating frame 3 to rotate to a vertical position, at which point the core board is lifted onto the supporting rotating frame 3. The third motor 9 flips the flipping seat 10, rotating the pulsed laser head 15 and scanning head 16 towards the bottom side of the core board to clean it. Then, the hoisting device lifts the core board, the supporting rotating frame 3 rotates to a horizontal position, and the hoisting device lifts the core board onto the bottom panel. Finally, the pulsed laser head 15 and scanning head 16 move towards the bottom panel to clean it. The head 16 is flipped to face the top side of the core plate for cleaning. After cleaning the bottom side of the top panel, the top panel is placed on the core plate. The core plate and the panel move on the rotating roller 2 and are preheated by passing the electromagnetic heating coil 18 of the heat preservation heating box 17. Then, they enter the rolling mechanism 19 for rolling between the first roller 24 and the second roller 25. The distance between the first roller 24 and the second roller 25 of the rolling mechanism 19 is adjusted by the pneumatic cylinder 21. The distance between the first roller 24 and the second roller 25 of several rolling mechanisms 19 decreases sequentially from the feed end to the discharge end. The rolled multi-layer composite liquid-cooled plate is inspected by a flaw detector and a thickness measuring instrument. The distance between the first roller 24 and the second roller 25 is adjusted in real time. The first roller 24 and the second roller 25 are controlled by different reducers 26 and the fifth motor 27, thereby adjusting the rotation speed of the first roller 24 and the second roller 25 respectively.

[0025] Integration and high efficiency combine multiple independent processes such as pretreatment, preheating, rolling, and testing into a continuous production line, which greatly reduces intermediate transfer, waiting and secondary processing time and significantly improves production efficiency. Online laser cleaning is used to clean the top side of the bottom panel, the bottom and top sides of the core board, and the bottom side of the top panel in sequence, ensuring the cleanliness of the mating surfaces from the source. By preheating and multi-pass progressive rolling, the composite process conditions were optimized. Through multi-stand precise positioning and online thickness measurement feedback, the thickness tolerance of the finished product was ensured to be extremely small. Asynchronous rolling capability and real-time adjustment mechanism help to obtain composite plates with high flatness. The high degree of automation and intelligence, from automatic feeding and cleaning to online detection and feedback, reduces reliance on operator experience, lowers the risk of human error, and ensures the stability and repeatability of product quality.

[0026] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A method for operating a high-efficiency shape control rolling device for multi-layer composite liquid-cooled plates, characterized in that, The specific steps of this method are as follows: The bottom panel is lifted onto the roller (2) by a hoisting device. At this time, the second motor (7) drives the first threaded rod (6) to rotate, which in turn drives the threaded sliding frame (8) to move. The flipping seat (10) moves from one end of the bottom panel to the other end. At the same time, the fourth motor (11) drives the second threaded rod (13) to rotate, which in turn drives the sliding seat (14) to move horizontally. The pulse laser head (15) and the scanning head (16) move toward the bottom panel to clean the top side of the bottom panel. The first motor (4) drives the supporting rotating frame (3) to rotate to a vertical position. In the straight state, the core board is transported to the support frame (3), and the flipping seat (10) is flipped by the third motor (9). The pulse laser head (15) and the scanning head (16) are rotated to face the bottom side of the core board and the bottom side of the core board is cleaned. Then the lifting device lifts the core board, the support frame (3) is rotated to the horizontal state, and the core board is lifted onto the bottom panel by the lifting device. Then the pulse laser head (15) and the scanning head (16) are flipped to face the top side of the core board and the top side of the core board is cleaned. After cleaning the bottom side of the top panel, the top panel is placed on the core board. The device includes a frame (1), rotating rollers (2) and rolling mechanism (19). Several rotating rollers (2) are installed inside the frame (1). Supporting rotating frames (3) are rotatably installed inside both ends of the frame (1). Translation seats (5) are installed on both sides inside the frame (1). Sliding frames (8) are slidably installed on both translation seats (5). A flipping seat (10) is rotatably installed between the two sliding frames (8). A sliding seat (14) is slidably installed on the flipping seat (10). A pulse laser head (15) and a scanning head (16) are installed on the sliding seat (14). Several rolling mechanisms (19) are installed at the end of the frame (1) in sequence. The frame (1) has a first motor (4) installed at both ends of its side wall, and the output end of the first motor (4) is connected to the support frame (3); The translation seat (5) is equipped with a second motor (7) at its end. The output end of the second motor (7) is located inside the translation seat (5) and is equipped with a first threaded rod (6). The first threaded rod (6) is threadedly connected to the slide frame (8). The two ends of the flip seat (10) are connected to the bearings of the slide frame (8), and a third motor (9) is installed in one of the slide frames (8), and the output end of the third motor (9) is connected to the flip seat (10); Another slide frame (8) is equipped with a fourth motor (11) that is fixedly connected to the end of the flip seat (10). The output end of the fourth motor (11) is located in the slide groove (12) of the slide frame (8) and a second threaded rod (13) is installed therein. The second threaded rod (13) is threadedly connected to the slide seat (14).

2. The working method of the high-efficiency shape control rolling device for multi-layer composite liquid-cooled plates according to claim 1, characterized in that, The frame (1) is equipped with a heat preservation heating box (17) at one end, and an electromagnetic heating coil (18) is installed inside the heat preservation heating box (17). The rolling mechanism (19) includes symmetrically arranged machine bases (20), with lifting grooves (22) provided on the machine bases (20). A pneumatic cylinder (21) is installed on the machine bases (20), and the telescopic end of the pneumatic cylinder (21) is connected to a roller seat (23) in the lifting groove (22). The roller seat (23) is connected to a first roll (24). A second roll (25) is installed between the two machine bases (20) and below the first roll (24). A speed reducer (26) is installed on both the machine base (20) and the roller base (23), and the output end of the speed reducer (26) is connected to the ends of the first roller (24) and the second roller (25) respectively. The input end of the speed reducer (26) is connected to the output end of the fifth motor (27). A parallel mounting plate (28) is installed between the bases (20) of the two rolling mechanisms (19), and a detection component (29) is installed in the mounting plate (28), the detection component (29) including a flaw detector and a thickness measuring instrument.

3. The working method of the high-efficiency shape control rolling device for multi-layer composite liquid-cooled plates according to claim 2, characterized in that, The specific steps of this working method are as follows: The core plate and the face plate move on the rotating roller (2), and are preheated when passing through the electromagnetic heating coil (18) of the heat preservation heating box (17). Then they enter the rolling mechanism (19) between the first roller (24) and the second roller (25) for rolling combination. The distance between the first roller (24) and the second roller (25) of the rolling mechanism (19) is adjusted by the pneumatic cylinder (21). The distance between the first roller (24) and the second roller (25) of several rolling mechanisms (19) decreases sequentially from the feed end to the discharge end. The multi-layer composite liquid-cooled plate after rolling is inspected by a flaw detector and a thickness measuring instrument. The distance between the first roller (24) and the second roller (25) is adjusted in real time. The first roller (24) and the second roller (25) are controlled by different reducers (26) and the fifth motor (27), and the rotation speed of the first roller (24) and the second roller (25) is adjusted separately.

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