Equipment and method for manufacturing large-area diamond cooling fins

Abstract

The invention discloses equipment and method for manufacturing large-area diamond cooling fins, the equipment comprises a supporting base, the top of the supporting base is slidably connected with a movable sliding box, and the top of the movable sliding box is rotatably connected with a rotating supporting disc. By arranging a second air cylinder and a cleaning brush, the output end of the second air cylinder drives a rack to move, the rack drives a rotating rod to rotate through a meshed gear, the rotating rod drives a rotating supporting disc and forming die bases to rotate, the positions of the two forming die bases are exchanged, and the feeding work of cold press forming is completed; the output end of the fourth air cylinder drives the cleaning brush to move, impurities at the bottom of the cold pressing disc are cleaned through the cleaning brush, and the stability of next-time cold pressing forming is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of diamond heat sink manufacturing, and specifically to an apparatus and method for manufacturing large-area diamond heat sinks. Background Art

[0002] A diamond heat sink is a heat dissipation element made using the high thermal conductivity characteristics of diamond material. Diamond is one of the materials with the highest thermal conductivity in nature, and its thermal conductivity far exceeds that of traditional metal heat dissipation materials such as copper and aluminum. For example, the room-temperature thermal conductivity of natural single-crystal diamond can reach 22 W / (cm·K), while the thermal conductivity of metal copper is about 4 W / (cm·K). Excellent physical properties: Diamond not only has high thermal conductivity but also has advantages such as low thermal expansion coefficient, high hardness, high wear resistance, good chemical stability, and anti-radiation performance. A large-area diamond heat sink is a large-sized heat dissipation element made of diamond material, with extremely high thermal conductivity and excellent heat dissipation performance. The design of the large-area diamond heat sink enables it to cover a larger heat dissipation area, thereby more effectively dissipating the heat generated by the device. This is particularly important in the heat dissipation of high-power density devices. In high-tech fields such as electronics, communications, new energy vehicles, and aerospace, as the power density of devices continues to increase, the requirements for heat dissipation materials are becoming increasingly stringent. Due to its excellent thermal conductivity and physical properties, the large-area diamond heat sink has become an ideal heat dissipation element in these fields. However, the manufacturing process of large-area diamond heat sinks is complex and requires high-precision equipment and processes to ensure the quality and performance of the products. The diamond material has extremely high hardness and is difficult to be formed by conventional processing methods. Traditional manufacturing methods often rely on manual operations or simple mechanical equipment, resulting in low production efficiency and difficulty in meeting the needs of large-scale production. Traditional manufacturing methods have low automation levels and require a large amount of manual intervention, which not only increases production costs but also reduces production efficiency and product consistency. Summary of the Invention

[0003] The purpose of the present invention is to provide an apparatus and method for manufacturing large-area diamond heat sinks to solve the problems in the above-mentioned background art that traditional manufacturing methods often rely on manual operations or simple mechanical equipment, resulting in low production efficiency and difficulty in meeting the needs of large-scale production, and that traditional manufacturing methods have low automation levels and require a large amount of manual intervention, which not only increases production costs but also reduces production efficiency and product consistency.

[0004] To achieve the above object, the present invention provides the following technical solution: An apparatus for manufacturing a large-area diamond heat sink, comprising a support base, a moving slide box is slidably connected to the top of the support base, a rotating support disk is rotatably connected to the top of the moving slide box, forming die seats are symmetrically and fixedly connected to the top of the rotating support disk, a first support frame is arranged outside the support base, a first cylinder is installed on the top of the first support frame, the output end of the first cylinder is fixedly connected to a cold pressing plate that cooperates with the forming die seat, an inner fixed box is fixedly connected to the inside of the moving slide box, a rotating assembly is arranged inside the inner fixed box, the rotating assembly is connected to the rotating support disk, a loading and unloading manipulator is installed on the top of the support base, a fixed side seat is fixedly connected to one side of the support base, a sintering die is slidably connected to the top of the fixed side seat, a second linear module is installed inside the fixed side seat, the moving slide of the second linear module is connected to the sintering die, an inner heating plate is arranged inside the sintering die, a second support frame is arranged outside the fixed side seat, a fifth cylinder is installed on the top of the second support frame, the output end of the fifth cylinder is fixedly connected to a bottom fixing plate, a sintering cover plate that cooperates with the sintering die is fixedly connected to the bottom of the bottom fixing plate, a plurality of air inlet pipes are installed inside the sintering cover plate and the bottom fixing plate, an air extraction pipe is installed inside the sintering cover plate and the bottom fixing plate, solenoid valves are installed on both the air inlet pipe and the air extraction pipe, a fixed bracket is arranged on one side of the support base, a ball mill is installed on the top of the fixed bracket, a spiral discharge pipe is arranged at one end of the ball mill, and a discharge port that cooperates with the forming die seat is fixedly connected to the bottom of the spiral discharge pipe.

[0005] As a preferred solution of the present invention: The rotating assembly includes a rotating rod, the rotating rod is rotatably connected to the inside of the inner fixed box, the top end of the rotating rod is fixedly connected to the rotating support disk, the rotating rod is rotatably connected to the moving slide box, a gear is fixedly connected to the outside of the rotating rod, a rack that cooperates with the gear is slidably connected to the inside of the inner fixed box, the rack is meshed and connected with the gear, a second cylinder is installed on one side of the inner fixed box, and the output end of the second cylinder is fixedly connected to the rack.

[0006] As a preferred solution of the present invention: An inner sliding plate is slidably connected to the inside of the rotating support disk, a plurality of thimble pins that cooperate with the air extraction pipe are symmetrically and fixedly connected to the top of the inner sliding plate, the thimble pins are slidably connected to the rotating support disk, the thimble pins are slidably connected to the air extraction pipe, third cylinders are symmetrically installed inside the rotating support disk, and the output ends of the third cylinders are fixedly connected to the inner sliding plate.

[0007] As a preferred solution of the present invention: A fixed side frame is fixedly connected to one side of the first support frame, a fourth cylinder is installed on one side of the fixed side frame, and the output end of the fourth cylinder is fixedly connected to a cleaning brush that cooperates with the cold pressing plate.

[0008] As a preferred embodiment of the present invention: on one side of the cleaning brush, limiting slide bars are symmetrically and fixedly connected, and the limiting slide bars are slidably connected to the fixed side frames.

[0009] As a preferred embodiment of the present invention: a feed box is fixedly connected to the top of the fixed support, one end of the ball mill far from the spiral discharge pipe is fixedly connected with a spiral feed pipe, and the feed box is connected to the spiral feed pipe.

[0010] As a preferred embodiment of the present invention: bottom fixed sliders are symmetrically and slidably connected inside the fixed side seats, the tops of the bottom fixed sliders are fixedly connected with sintering molds, a first limiting slide bar is slidably connected inside the bottom fixed sliders, and the first limiting slide bar is fixedly connected to the fixed side seats.

[0011] As a preferred embodiment of the present invention: a first linear module is installed inside the support base, and the moving slide of the first linear module is connected to the moving slide box.

[0012] As a preferred embodiment of the present invention: second limiting slide bars are symmetrically and fixedly connected to the top of the bottom fixing plate, and the second limiting slide bars are slidably connected to the second support frames.

[0013] A method for manufacturing a large-area diamond heat sink, comprising the following steps:

[0014] S1. Diamond particles and metal copper particles are stored in the feed box, the diamond particles and metal copper particles are input into the ball mill through the spiral feed pipe, the ball mill is used for grinding and mixing, and then the ground powder is discharged through the discharge port at the bottom of the spiral discharge pipe. The powder enters one of the lower forming die seats. After filling an appropriate amount of powder, the spiral discharge pipe is closed. The output end of the second cylinder drives the rack to move. When the rack moves, the meshing gear rotates. When the gear rotates, the rotating support plate and the forming die seat are driven by the inner rotating rod, and the two forming die seats are interchanged in position. The forming die seat filled with powder is rotated to directly below the cold pressing plate, and then the other forming die seat is filled with powder through the discharge port.

[0015] S2. Drive the cold pressing plate to move downward through the output end of the first cylinder, and perform cold pressing treatment through the cooperation between the cold pressing plate and the forming die base to cold press and form the large-area diamond heat sink. After cold pressing, the output end of the first cylinder drives the cold pressing plate to move upward. Drive the cleaning brush to move through the output end of the fourth cylinder, and clean the residual impurities at the bottom of the cold pressing plate through the cleaning brush, improving the stability of the next cold pressing and forming. Drive the moving sliding box, rotating support plate, and forming die base to move through the output end of the first linear module. Transfer the large-area diamond heat sink cold-pressed and formed in the forming die base through the loading and unloading manipulator, and then the moving slide of the first linear module drives the moving sliding box, rotating support plate, and forming die base to move back to their original positions for the next cold pressing and forming operation;

[0016] S3. Transfer the large-area diamond heat sink after cold pressing and forming to the sintering die for placement through the loading and unloading manipulator. Drive the bottom fixed plate and sintering cover plate to move downward through the output end of the fifth cylinder, and the sintering cover plate closes the sintering die. Heat-treat the large-area diamond heat sink through the internal heating plate in the sintering die. At the same time, introduce protective gas through the inlet pipe and extract waste gas, sinter the formed green body at high temperature, melt the metal powder and infiltrate it into the gaps of the diamond powder to form a dense composite material. After sintering, the output end of the fifth cylinder drives the bottom fixed plate and sintering cover plate to move upward. Drive the sintering die to move through the moving slide of the second linear module to move the sintered diamond heat sink, facilitating blanking;

[0017] S4. After blanking, use laser cutting and mechanical grinding to process the sintered diamond heat sink, remove the excess material, and trim the shape and size. Polish the surface of the heat sink to improve its surface finish and thermal conductivity. Perform copper plating and nickel plating on the surface of the diamond heat sink as needed to improve its thermal conductivity, corrosion resistance, or welding performance. The plating method is physical vapor deposition.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: By setting the second cylinder, rack, gear and rotating rod, the output end of the second cylinder drives the rack to move, and the rack drives the rotating rod to rotate through the meshing gear. The rotating rod drives the rotating support plate and the forming die base to rotate, and the positions of the two forming die bases are interchanged to complete the feeding work of cold pressing and forming. By setting the fourth cylinder and the cleaning brush, the output end of the fourth cylinder drives the cleaning brush to move, and the cleaning brush cleans the impurities at the bottom of the cold pressing plate, improving the stability of the next cold pressing and forming. By setting the sintering die, internal heating plate, sintering cover plate and intake pipe, the internal heating plate in the sintering die heats the large-area diamond heat sink. At the same time, protective gas is introduced through the intake pipe, and waste gas is extracted through the exhaust pipe. The green body after forming is sintered at high temperature, so that the metal powder melts and penetrates into the gaps of the diamond powder to form a dense composite material. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 is a rear view of the present invention;

[0021] Figure 3 is a bottom view of the sintering cover plate of the present invention;

[0022] Figure 4 is a schematic diagram of the overall structure of the support base and the moving slide box of the present invention;

[0023] Figure 5 is a schematic diagram of the internal structure of the support base of the present invention;

[0024] Figure 6 is a schematic diagram of the internal structure of the internal fixing box of the present invention;

[0025] Figure 7 is a schematic diagram of the internal structure of the rotating support plate of the present invention;

[0026] Figure 8 is a left view of the present invention.

[0027] In the figure: 1. Support base; 2. Moving slide box; 3. Rotating support plate; 4. Fixed bracket; 5. Ball mill; 6. First support frame; 7. First cylinder; 8. Spiral discharge pipe; 9. Discharge port; 10. Spiral feed pipe; 11. Feed box; 12. Loading and unloading manipulator; 13. Inner fixed box; 14. First linear module; 15. Rotating rod; 16. Gear; 17. Rack; 18. Second cylinder; 19. Inner sliding plate; 20. Third cylinder; 21. Thimble; 22. Fixed side frame; 23. Fourth cylinder; 24. Limit slide bar; 25. Cleaning brush; 26. Cold pressing plate; 27. Fixed side seat; 28. Sintering die; 29. Inner heating plate; 30. Second linear module; 31. Bottom fixed slider; 32. First limit slide bar; 33. Second support frame; 34. Fifth cylinder; 35. Bottom fixed plate; 36. Second limit slide bar; 37. Sintering cover plate; 38. Air inlet pipe; 39. Exhaust pipe; 40. Forming die base. Specific implementation manner

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0029] Please refer to Figures 1 to 8, the present invention provides a technical solution: a device for manufacturing a large-area diamond heat sink, including a support base 1. A movable sliding box 2 is slidably connected to the top of the support base 1. A rotating support plate 3 is rotatably connected to the top of the movable sliding box 2. Symmetrically fixed to the top of the rotating support plate 3 are forming die seats 40. On the outside of the support base 1 is provided a first support frame 6. At the top of the first support frame 6 is installed a first cylinder 7. The output end of the first cylinder 7 is fixedly connected to a cold pressing plate 26 that cooperates with the forming die seats 40. Inside the movable sliding box 2 is fixedly connected an inner fixed box 13. Inside the inner fixed box 13 is provided a rotating assembly, and the rotating assembly is connected to the rotating support plate 3. On the top of the support base 1 is installed a loading and unloading manipulator 12. Fixedly connected to one side of the support base 1 is a fixed side seat 27. A sintering die 28 is slidably connected to the top of the fixed side seat 27. Inside the fixed side seat 27 is installed a second linear module 30. The moving slide of the second linear module 30 is connected to the sintering die 28. Inside the sintering die 28 is provided an inner heating plate 29. On the outside of the fixed side seat 27 is provided a second support frame 33. At the top of the second support frame 33 is installed a fifth cylinder 34. The output end of the fifth cylinder 34 is fixedly connected to a bottom fixed plate 35. Fixedly connected to the bottom of the bottom fixed plate 35 is a sintering cover plate 37 that cooperates with the sintering die 28. Inside the sintering cover plate 37 and the bottom fixed plate 35 are installed a plurality of air inlet pipes 38. Inside the sintering cover plate 37 and the bottom fixed plate 35 are installed air extraction pipes 39. Solenoid valves are installed on both the air inlet pipes 38 and the air extraction pipes 39. On one side of the support base 1 is provided a fixed bracket 4. At the top of the fixed bracket 4 is installed a ball mill 5. At one end of the ball mill 5 is provided a spiral discharge pipe 8. The bottom of the spiral discharge pipe 8 is fixedly connected to a discharge port 9 that cooperates with the forming die seats 40. The raw materials are pulverized by the ball mill 5. The ball mill impacts and grinds the materials through the grinding media in its cylinder body to pulverize the materials into the required particle size.

[0030] Among them, the rotating assembly includes a rotating rod 15. The rotating rod 15 is rotatably connected inside the inner fixed box 13. The top end of the rotating rod 15 is fixedly connected to the rotating support plate 3. The rotating rod 15 is rotatably connected to the movable sliding box 2. Fixedly connected to the outside of the rotating rod 15 is a gear 16. Slidably connected inside the inner fixed box 13 is a rack 17 that cooperates with the gear 16. The rack 17 is meshed with the gear 16. On one side of the inner fixed box 13 is installed a second cylinder 18. The output end of the second cylinder 18 is fixedly connected to the rack 17. By driving the rack 17 to move through the output end of the second cylinder 18, when the rack 17 moves, it drives the meshed gear 16 to rotate. When the gear 16 rotates, it drives the inner rotating rod 15 to rotate, and performs rotational adjustment processing on the positions of the rotating support plate 3 and the forming die seats 40.

[0031] Among them, an inner sliding plate 19 is slidably connected inside the rotating support plate 3. At the top of the inner sliding plate 19, a plurality of thimbles 21 cooperating with the air extraction pipe 39 are symmetrically and fixedly connected. The thimbles 21 are slidably connected to the rotating support plate 3 and the thimbles 21 are slidably connected to the air extraction pipe 39. Inside the rotating support plate 3, third cylinders 20 are symmetrically installed. The output ends of the third cylinders 20 are fixedly connected to the inner sliding plate 19. By driving the output ends of the third cylinders 20, the inner sliding plate 19 moves upward. The inner sliding plate 19 drives the thimbles 21 to move upward. The diamond heat sinks cold-pressed and formed in the forming die base 40 are ejected by the thimbles 21, facilitating the material taking process.

[0032] Among them, a fixed side frame 22 is fixedly connected to one side of the first support frame 6. A fourth cylinder 23 is installed on one side of the fixed side frame 22. The output end of the fourth cylinder 23 is fixedly connected to a cleaning brush 25 cooperating with the cold pressing plate 26. By driving the output end of the fourth cylinder 23, the cleaning brush 25 moves. The bottom of the cold pressing plate 26 is cleaned by the cleaning brush 25, improving the stability of cold pressing and forming.

[0033] Among them, limiting slide bars 24 are symmetrically and fixedly connected to one side of the cleaning brush 25. The limiting slide bars 24 are slidably connected to the fixed side frame 22. The output end of the fourth cylinder 23 drives the cleaning brush 25 to move. When the cleaning brush 25 moves, it drives the limiting slide bars 24 to slide in a limited manner with the fixed side frame 22, improving the stability of the adjustment of the cleaning brush 25.

[0034] Among them, a feeding box 11 is fixedly connected to the top of the fixed support 4. One end of the ball mill 5 far from the spiral discharge pipe 8 is fixedly connected to a spiral feeding pipe 10. The feeding box 11 is connected to the spiral feeding pipe 10. The granular material in the feeding box 11 is fed through the spiral feeding pipe 10 and enters the ball mill 5 for powder grinding.

[0035] Among them, bottom fixed sliders 31 are symmetrically and slidably connected inside the fixed side seat 27. The tops of the bottom fixed sliders 31 are fixedly connected to the sintering die 28. An inner limiting slide bar 32 is slidably connected inside the bottom fixed sliders 31. The inner limiting slide bar 32 is fixedly connected to the fixed side seat 27. When the sintering die 28 moves, it drives the bottom fixed sliders 31 to move. The bottom fixed sliders 31 slide in a limited manner outside the inner limiting slide bar 32, improving the moving stability of the sintering die 28.

[0036] Among them, a first linear module 14 is installed inside the support base 1. The moving slide of the first linear module 14 is connected to the moving slide box 2. By driving the moving slide of the first linear module 14, the moving slide box 2, the rotating support plate 3 and the forming die base 40 are moved as a whole, facilitating the loading and unloading of the cold-pressed and formed materials in the forming die base 40.

[0037] Among them, the top of the bottom fixed plate 35 is symmetrically and fixedly connected with second limiting sliding rods 36. The second limiting sliding rods 36 are slidably connected with the second support frame 33. The output end of the fifth cylinder 34 drives the bottom fixed plate 35 to move. The bottom fixed plate 35 drives the second limiting sliding rods 36 to slide in a limited manner within the second support frame 33, improving the stability of the sintering cover plate 37.

[0038] A method for manufacturing a large-area diamond heat sink, comprising the following steps:

[0039] S1. Diamond particles and metal copper particles are stored in the feed hopper 11. The diamond particles and metal copper particles are input into the ball mill 5 through the spiral feed pipe 10. The ball mill 5 performs powder grinding and mixing processes. Then, the ground powder is discharged through the discharge port 9 at the bottom of the spiral discharge pipe 8. The powder enters one of the lower forming die seats 40. After filling an appropriate amount of powder, the spiral discharge pipe 8 is closed. The output end of the second cylinder 18 drives the rack 17 to move. When the rack 17 moves, it drives the meshing gear 16 to rotate. When the gear 16 rotates, it drives the rotating support plate 3 and the forming die seat 40 through the inner rotating rod 15, performing a position exchange process on the two forming die seats 40. The forming die seat 40 filled with powder is rotated to directly below the cold pressing plate 26. Then, the other forming die seat 40 performs a powder feeding process through the discharge port 9.

[0040] S2. The output end of the first cylinder 7 drives the cold pressing plate 26 to move downward. Cold pressing is performed through the cooperation between the cold pressing plate 26 and the forming die seat 40 to cold press and form the large-area diamond heat sink. After cold pressing, the output end of the first cylinder 7 drives the cold pressing plate 26 to move upward. The output end of the fourth cylinder 23 drives the cleaning brush 25 to move. The cleaning brush 25 cleans the residual impurities at the bottom of the cold pressing plate 26, improving the stability of the next cold pressing and forming. The output end of the first linear module 14 drives the moving slide box 2, the rotating support plate 3, and the forming die seat 40 to move. The large-area diamond heat sink cold pressed and formed in the forming die seat 40 is transferred by the loading and unloading manipulator 12. Then, the moving slide of the first linear module 14 drives the moving slide box 2, the rotating support plate 3, and the forming die seat 40 to move back to their original positions for the next cold pressing and forming operation.

[0041] S3. Transfer the cold-pressed large-area diamond heat sink into the sintering mold 28 for placement by the loading and unloading manipulator 12. Drive the bottom fixed plate 35 and the sintering cover plate 37 to move downward through the output end of the fifth cylinder 34. The sintering cover plate 37 closes the sintering mold 28. Heat-treat the large-area diamond heat sink through the internal heating plate 29 in the sintering mold 28. At the same time, introduce a protective gas through the intake pipe 38 and extract the waste gas through the exhaust pipe 39. Sinter the formed green body at a high temperature to melt the metal powder and infiltrate it into the gaps of the diamond powder to form a dense composite material. After sintering, the output end of the fifth cylinder 34 drives the bottom fixed plate 35 and the sintering cover plate 37 to move upward. Drive the sintering mold 28 to move through the moving slide of the second linear module 30 to move the sintered diamond heat sink, facilitating blanking;

[0042] S4. After blanking, use laser cutting and mechanical grinding to process the sintered diamond heat sink, remove the excess material, and trim the shape and size. Polish the surface of the heat sink to improve its smoothness and thermal conductivity. Perform copper plating or nickel plating on the surface of the diamond heat sink as needed to improve its thermal conductivity, corrosion resistance, or welding performance. The plating method is physical vapor deposition.

[0043] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An apparatus for manufacturing a large-area diamond heat sink, comprising a support base (1), characterized in that, A moving slide box (2) is slidably connected to the top of the support base (1). A rotating support disc (3) is rotatably connected to the top of the moving slide box (2). Forming die bases (40) are symmetrically and fixedly connected to the top of the rotating support disc (3). A first support frame (6) is arranged outside the support base (1). A first air cylinder (7) is installed at the top of the first support frame (6). The output end of the first air cylinder (7) is fixedly connected to a cold pressing disc (26) that cooperates with the forming die bases (40). An inner fixed box (13) is fixedly connected inside the moving slide box (2). A rotating assembly is arranged inside the inner fixed box (13). The rotating assembly is connected to the rotating support disc (3). A loading and unloading manipulator (12) is installed at the top of the support base (1). A fixed side seat (27) is fixedly connected to one side of the support base (1). A sintering die (28) is slidably connected to the top of the fixed side seat (27). A second linear module (30) is installed inside the fixed side seat (27). The moving slide of the second linear module (30) is connected to the sintering die (28). An inner heating plate (29) is arranged inside the sintering die (28). A second support frame (33) is arranged outside the fixed side seat (27). A fifth air cylinder (34) is installed at the top of the second support frame (33). The output end of the fifth air cylinder (34) is fixedly connected to a bottom fixed plate (35). A sintering cover plate (37) that cooperates with the sintering die (28) is fixedly connected to the bottom of the bottom fixed plate (35). A plurality of air inlet pipes (38) are installed inside the sintering cover plate (37) and the bottom fixed plate (35). An air extraction pipe (39) is installed inside the sintering cover plate (37) and the bottom fixed plate (35). Solenoid valves are installed on both the air inlet pipe (38) and the air extraction pipe (39). A fixed bracket (4) is arranged on one side of the support base (1). A ball mill (5) is installed at the top of the fixed bracket (4). A spiral discharge pipe (8) is arranged at one end of the ball mill (5). The bottom of the spiral discharge pipe (8) is fixedly connected to a discharge port (9) that cooperates with the forming die bases (40).

2. The device for manufacturing a large-area diamond heat sink according to claim 1, characterized in that: The rotating assembly includes a rotating rod (15). The rotating rod (15) is rotatably connected inside the inner fixed box (13). The top end of the rotating rod (15) is fixedly connected to the rotating support disc (3). The rotating rod (15) is rotatably connected to the moving slide box (2). A gear (16) is fixedly connected to the outside of the rotating rod (15). A rack (17) that cooperates with the gear (16) is slidably connected inside the inner fixed box (13). The rack (17) is meshed and connected with the gear (16). A second air cylinder (18) is installed on one side of the inner fixed box (13). The output end of the second air cylinder (18) is fixedly connected to the rack (17).

3. The device for manufacturing a large-area diamond heat sink according to claim 2, wherein: An inner sliding plate (19) is slidably connected inside the rotating support plate (3). A plurality of thimbles (21) cooperating with the air extraction pipe (39) are symmetrically and fixedly connected to the top of the inner sliding plate (19). The thimbles (21) are slidably connected to the rotating support plate (3) and the thimbles (21) are slidably connected to the air extraction pipe (39). Inside the rotating support plate (3), third cylinders (20) are symmetrically installed. The output ends of the third cylinders (20) are fixedly connected to the inner sliding plate (19).

4. The device for manufacturing a large-area diamond heat sink according to claim 3, wherein: A fixed side frame (22) is fixedly connected to one side of the first support frame (6). A fourth cylinder (23) is installed on one side of the fixed side frame (22). The output end of the fourth cylinder (23) is fixedly connected to a cleaning brush (25) cooperating with the cold pressing plate (26).

5. The device for manufacturing a large-area diamond heat sink according to claim 4, wherein: Two limiting slide bars (24) are symmetrically and fixedly connected to one side of the cleaning brush (25). The limiting slide bars (24) are slidably connected to the fixed side frame (22).

6. The device for manufacturing a large-area diamond heat sink according to claim 5, wherein: A feed box (11) is fixedly connected to the top of the fixed support (4). One end of the ball mill (5) far from the spiral discharge pipe (8) is fixedly connected to a spiral feed pipe (10). The feed box (11) is connected to the spiral feed pipe (10).

7. The device for manufacturing a large-area diamond heat sink according to claim 6, characterized in that: Two bottom fixed sliders (31) are symmetrically and slidably connected inside the fixed side seat (27). The top of the bottom fixed sliders (31) is fixedly connected to the sintering die (28). An inner limiting slide bar (32) is slidably connected inside the bottom fixed sliders (31). The inner limiting slide bar (32) is fixedly connected to the fixed side seat (27).

8. An apparatus for manufacturing a large-area diamond heat sink according to claim 7, characterized in that: A first linear module (14) is installed inside the support base (1). The moving slide of the first linear module (14) is connected to the moving slide box (2).

9. An apparatus for manufacturing a large-area diamond heat sink according to claim 8, wherein: Two second limiting slide bars (36) are symmetrically and fixedly connected to the top of the bottom fixed plate (35). The second limiting slide bars (36) are slidably connected to the second support frame (33).

10. A method for manufacturing a large-area diamond heat sink according to any one of claims 1-9, characterized in that, Including the following steps: S1. Diamond particles and metal copper particles are stored in the feed box (11). The diamond particles and metal copper particles are input into the ball mill (5) through the spiral feed pipe (10). The ball mill (5) is used for powder grinding and mixing treatment. Then, the ground powder is discharged through the discharge port (9) at the bottom of the spiral discharge pipe (8). The powder enters one of the lower forming die seats (40). After pouring an appropriate amount of powder, the spiral discharge pipe (8) is closed. The output end of the second cylinder (18) drives the rack (17) to move. When the rack (17) moves, it drives the engaged gear (16) to rotate. When the gear (16) rotates, it drives the rotating support plate (3) and the forming die seat (40) through the inner rotating rod (15) to exchange the positions of the two forming die seats (40). The forming die seat (40) filled with powder is rotated to directly below the cold pressing plate (26). Then, the other forming die seat (40) is filled with powder through the discharge port (9). S2. Drive the cold pressing plate (26) to move downward through the output end of the first cylinder (7), and perform cold pressing treatment through the cooperation between the cold pressing plate (26) and the forming die base (40) to cold press and form the large-area diamond heat sink. After cold pressing, drive the cold pressing plate (26) to move upward through the output end of the first cylinder (7). Drive the cleaning brush (25) to move through the output end of the fourth cylinder (23), and clean the residual impurities at the bottom of the cold pressing plate (26) through the cleaning brush (25), improving the stability of the next cold pressing and forming. Drive the moving slide box (2), the rotating support plate (3), and the forming die base (40) to move through the output end of the first linear module (14). Transfer the large-area diamond heat sink cold-pressed and formed in the forming die base (40) through the loading and unloading manipulator (12). Then, drive the moving slide box (2), the rotating support plate (3), and the forming die base (40) to move back to their original positions through the moving slide of the first linear module (14) to perform the next cold pressing and forming operation; S3. Transfer the cold-pressed and formed large-area diamond heat sink into the sintering die (28) through the loading and unloading manipulator (12). Drive the bottom fixed plate (35) and the sintering cover plate (37) to move downward through the output end of the fifth cylinder (34). The sintering cover plate (37) closes the sintering die (28). Heat-treat the large-area diamond heat sink through the internal heating plate (29) in the sintering die (28). At the same time, introduce a protective gas through the inlet pipe (38) and extract the waste gas through the exhaust pipe (39). Sinter the formed green body at high temperature to melt the metal powder and penetrate it into the gaps of the diamond powder to form a dense composite material. After sintering, drive the bottom fixed plate (35) and the sintering cover plate (37) to move upward through the output end of the fifth cylinder (34). Drive the sintering die (28) to move through the moving slide of the second linear module (30) to move the sintered diamond heat sink, facilitating blanking; S4. After blanking, use laser cutting and mechanical grinding to process the sintered diamond heat sink, remove the excess material, and trim the shape and size. Polish the surface of the heat sink to improve its surface finish and thermal conductivity. According to requirements, perform copper plating or nickel plating on the surface of the diamond heat sink to improve its thermal conductivity, corrosion resistance, or welding performance. The plating method is physical vapor deposition.

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