A cubic anvil press device for diamond superhigh pressure synthesis

Abstract

This invention relates to the field of diamond, and more specifically to a six-sided pressing device for ultra-high pressure synthesis of diamond. The device includes a ring frame with four fixed seats, each slidably connected to a pressure column. Vertical pressure seats are fixed to opposite ends of the four pressure columns. Each vertical pressure seat has a pressing surface on both sides, and the four vertical pressure seats are pressed together through these pressing surfaces to form a cubic space. A flat pressure seat is provided on the top and bottom sides of the cubic space, allowing it to be pressed into the cubic space. Guide slopes are provided on the top and bottom sides of each vertical pressure seat. This allows for six-sided pressing.

Description

Technical Field

[0001] This invention relates to the field of diamond, and more specifically to a six-sided pressure device for ultra-high pressure synthesis of diamond. Background Technology

[0002] Currently, the six-sided top-pressure devices used in ultra-high pressure diamond synthesis generally suffer from insufficient structural stability, poor top-pressure guidance accuracy, easy occurrence of off-center loading and stress concentration under high pressure, and inconvenience in disassembly and maintenance. They are difficult to ensure uniform stress in the synthesis chamber, affecting the quality of diamond synthesis and the service life of the equipment. Therefore, a six-sided top-pressure device with a more stable structure, more precise pressure application, and more convenient disassembly and assembly is needed. Summary of the Invention

[0003] To overcome the shortcomings of the prior art, the present invention provides a six-sided pressing device for diamond ultra-high pressure synthesis, which has the advantage of enabling six-sided pressing.

[0004] The technical solution adopted by this invention to solve its technical problem is:

[0005] A six-sided pressing device for ultra-high pressure synthesis of diamond includes an annular frame with four fixed seats 1. Each fixed seat 1 is slidably connected to a pressure column 1. Vertical pressure seats are fixed at opposite ends of the four pressure columns 1. Each vertical pressure seat has a pressing surface on both sides. The four vertical pressure seats are pressed together by the pressing surfaces on them, forming a cubic space.

[0006] A flat pressing seat is provided on both the top and bottom sides of the cubic space, and the flat pressing seat can press into the cubic space.

[0007] Each of the vertical pressure seats is provided with guide ramps on both the upper and lower sides.

[0008] A bracket is fixed between the upper and lower sides of the two fixed seats 1 on the left and right. A fixed seat 2 is provided in the middle of each bracket. A pressure column 2 is fixed on each flat pressure seat. The two pressure columns 2 are vertically slidably connected to the two fixed seats 2 respectively.

[0009] Eight hydraulic cylinders are fixed on the ring frame, and two movable ends of the hydraulic cylinders are fixed on each vertical pressure seat.

[0010] A rectangular sleeve is slidably connected to the fixed base, and a pressure column is slidably connected to the rectangular sleeve. A limiting block is fixed at both ends of the rectangular sleeve. The rectangular sleeve provides auxiliary support for the pressure column, making the pressure column more stable when sliding.

[0011] Each of the fixed bases has two hydraulic cylinders fixed on it, and the movable end of the hydraulic cylinder is fixed on the corresponding flat pressure base.

[0012] A rectangular sleeve is vertically slidably connected to the fixed base two, and the pressure column two is slidably connected to the rectangular sleeve two. Limiting blocks are fixed at both the upper and lower ends of the rectangular sleeve two. The rectangular sleeve two provides auxiliary support for the pressure column two, making the pressure column two more stable when sliding.

[0013] Each of the fixed seats 1 has a hole seat 1 fixed on both the upper and lower sides, and each of the fixed seats 2 has a hole seat 2 fixed on both the front and rear sides. A slanted post is provided between the corresponding hole seat 1 and hole seat 2. Threaded posts 2 are fixed at both ends of the slanted post. The two threaded posts 2 on the slanted post are respectively inserted into the hole seat 1 and hole seat 2. A nut 1 is threadedly connected to the end of each threaded post 2.

[0014] Two support legs are fixed on the lower support; two sets of separation mechanisms are provided on the upper support; the separation mechanism includes a connecting plate one and a connecting plate two, two threaded posts one are fixed on the connecting plate two, the two threaded posts one are inserted into the connecting plate one, and the ends of the two threaded posts one are connected to nuts two by threads. The connecting plate one and the connecting plate two can be separated, so that the flat pressure seat on the support can be removed as a whole.

[0015] The beneficial effects of the six-sided top pressure device for ultra-high pressure synthesis of diamond of the present invention are:

[0016] It can apply uniform and stable ultra-high pressure to the diamond synthesis cavity from six directions, resulting in a well-shaped and highly coaxial synthesis cavity. The rectangular sleeve and oblique support significantly enhance the structural strength and compressive strength, making it less prone to deformation, uneven loading, or damage under high pressure. The guide slope ensures precise pressing of the flat pressure seat, reducing jamming and wear. The upper separation mechanism can be quickly disassembled, facilitating material removal, maintenance, and component replacement, thus improving overall diamond synthesis efficiency, product quality, and equipment lifespan. Attached Figure Description

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and specific implementation methods.

[0018] Figure 1 A schematic diagram of a six-sided pressure device for ultra-high pressure synthesis of diamond. Figure 1 ;

[0019] Figure 2 A schematic diagram of a six-sided pressure device for ultra-high pressure synthesis of diamond. Figure 2 ;

[0020] Figure 3 A schematic diagram of a six-sided pressure device for ultra-high pressure synthesis of diamond. Figure 3 ;

[0021] Figure 4 A partial structural diagram of a six-sided top pressure device for ultra-high pressure synthesis of diamond. Figure 1 ;

[0022] Figure 5 A partial structural diagram of a six-sided top pressure device for ultra-high pressure synthesis of diamond. Figure 2 ;

[0023] Figure 6 A partial structural diagram of a six-sided top pressure device for ultra-high pressure synthesis of diamond. Figure 3 ;

[0024] Figure 7 A partial structural diagram of a six-sided top pressure device for ultra-high pressure synthesis of diamond. Figure 4 ;

[0025] Figure 8 A partial structural diagram of a six-sided top pressure device for ultra-high pressure synthesis of diamond. Figure 5 ;

[0026] In the diagram: 1. Ring frame; 2. Vertical pressure seat; 3. Rectangular sleeve 1; 4. Pressure column 1; 5. Limiting block 1; 6. Hydraulic cylinder 1; 7. Fixed seat 1; 8. Hole seat 1; 9. Guide slope; 10. Bracket; 11. Fixed seat 2; 12. Hydraulic cylinder 2; 13. Pressure column 2; 14. Limiting block 2; 15. Rectangular sleeve 2; 16. Hole seat 2; 17. Flat pressure seat; 18. Connecting plate 1; 19. Connecting plate 2; 20. Threaded column 1; 21. Support leg; 22. Inclined column; 23. Threaded column 2; 24. Nut 1; 25. Pressing surface; 26. Nut 2. Detailed Implementation

[0027] A six-sided pressing device for ultra-high pressure synthesis of diamond includes a ring frame 1. The ring frame 1 is provided with four fixed seats 7. Each fixed seat 7 is slidably connected with a pressure column 4. Vertical pressure seats 2 are fixed at opposite ends of the four pressure columns 4. Each vertical pressure seat 2 has a pressing surface 25 on both sides. The four vertical pressure seats 2 are pressed together by the pressing surface 25, and the four vertical pressure seats 2 form a cubic space.

[0028] like Figure 1-8 As shown;

[0029] The ring frame 1 provides the basic support and installation benchmark for the entire device. Four fixed seats 7 are symmetrically distributed on the ring frame 1, providing sliding guides for the pressure columns 4. Eight hydraulic cylinders 6 drive synchronously, causing the four pressure columns 4 to slide towards the center along the fixed seats 7, and the four vertical pressure seats 2 close towards the center accordingly. The pressing surfaces 25 on both sides of the vertical pressure seats 2 fit and limit each other, so that the four vertical pressure seats 2 precisely enclose to form a standard cubic synthesis space, providing a four-way constraint foundation in the horizontal direction for diamond ultra-high pressure synthesis, ensuring that the synthesis cavity has a regular shape and uniform force.

[0030] A flat pressing seat 17 is provided on both the top and bottom sides of the cubic space, and the flat pressing seat 17 can be pressed into the cubic space.

[0031] like Figure 1-8 As shown;

[0032] After the four vertical pressure seats 2 enclose and form a cubic space, the upper and lower flat pressure seats 17 are respectively aligned with the opening of the cubic space vertically; the hydraulic cylinder 2 12 drives the flat pressure seats 17 to move vertically and press into the interior of the cubic space. In cooperation with the four vertical pressure seats 2, the synthesis chamber is sealed and pressed from six directions: up and down, front and back, left and right, to construct the six-sided constraint environment required for ultra-high pressure synthesis and achieve all-round uniform pressure.

[0033] Each of the vertical pressure seats 2 is provided with guide slopes 9 on both the upper and lower sides.

[0034] like Figure 1-8 As shown;

[0035] The guide slopes 9 on the upper and lower sides of the vertical pressure seat 2 play a guiding and centering role when the flat pressure seat 17 is vertically pressed into the cubic space: guiding the flat pressure seat 17 to accurately embed into the cubic space, avoiding jamming or misalignment between the flat pressure seat 17 and the vertical pressure seat 2; at the same time, dispersing the vertical pressure, preventing local stress concentration from damaging the pressure seat, and ensuring the coaxiality and sealing of the six-sided top pressure.

[0036] A bracket 10 is fixed between the upper and lower sides of the two fixed seats 17. A fixed seat 2 11 is provided in the middle of each bracket 10. A pressure column 2 13 is fixed on each flat pressure seat 17. The two pressure columns 2 13 are vertically slidably connected to the two fixed seats 2 11 respectively.

[0037] like Figure 1-8 As shown;

[0038] The two fixed seats 17 on the left and right are connected by the upper and lower brackets 10 to form a stable frame structure, which provides support for the vertical pressure component; the fixed seat 2 11 in the middle of the bracket 10 provides a vertical sliding guide for the pressure column 2 13, ensuring that the pressure column 2 13 drives the flat pressure seat 17 to move in a straight line in the vertical direction, avoiding skewing during vertical pressure, and ensuring that the upper and lower flat pressure seats 17 are precisely aligned with the cubic space.

[0039] Eight hydraulic cylinders 6 are fixed on the ring frame 1, and two movable ends of the hydraulic cylinders 6 are fixed on each vertical pressure seat 2.

[0040] like Figure 1-8 As shown;

[0041] Eight hydraulic cylinders 6 are fixed on the ring frame 1. Each vertical pressure seat 2 is connected to two hydraulic cylinders 6. The dual cylinders drive synchronously to provide sufficient power for horizontal four-way pressure. The extension and retraction of the hydraulic cylinders 6 precisely controls the closing and separation of the vertical pressure seats 2, ensuring that the four vertical pressure seats 2 move synchronously towards the center and the combined force is evenly applied to the synthesis chamber to meet the horizontal high pressure requirements for diamond synthesis.

[0042] A rectangular sleeve 3 is slidably connected to the fixed base 7, and a pressure column 4 is slidably connected to the rectangular sleeve 3. A limiting block 5 is fixed at both ends of the rectangular sleeve 3. The rectangular sleeve 3 provides auxiliary support for the pressure column 4, making the pressure column 4 more stable when sliding.

[0043] like Figure 1-8 As shown;

[0044] The rectangular sleeve 3 on the fixed base 7 is fitted over the pressure column 4, providing auxiliary support and guidance for the pressure column 4 and increasing the force-bearing area of ​​the pressure column 4; the limiting blocks 5 at both ends restrict the sliding stroke of the rectangular sleeve 3 to prevent the pressure column 4 from slipping or shifting; during high-pressure pressing, it prevents the pressure column 4 from bending or shaking due to excessive force, thus improving the stability and accuracy of horizontal pressing.

[0045] Two hydraulic cylinders 12 are fixed on each of the fixed seats 11, and the movable end of the hydraulic cylinder 12 is fixed on the corresponding flat pressure seat 17.

[0046] like Figure 1-8 As shown;

[0047] Two hydraulic cylinders 12 are installed on each fixed seat 11. The two cylinders synchronously drive the flat pressure seat 17 to provide stable and balanced pressure for vertical pressing. The movable end of the hydraulic cylinder 12 is directly connected to the flat pressure seat 17, so the power transmission is direct and efficient. It can accurately control the pressing depth and pressure of the upper and lower flat pressure seats 17, and with the horizontal four-way pressure, a stable six-sided ultra-high pressure environment is formed.

[0048] A rectangular sleeve 15 is vertically slidably connected to the fixed base 11, and a pressure column 13 is slidably connected to the rectangular sleeve 15. Limiting blocks 14 are fixed at both the upper and lower ends of the rectangular sleeve 15. The rectangular sleeve 15 provides auxiliary support for the pressure column 13, making the pressure column 13 more stable when sliding.

[0049] like Figure 1-8 As shown;

[0050] The rectangular sleeve 15 on the fixed base 11 is fitted onto the outside of the pressure column 13 to provide auxiliary reinforcement and guidance for the vertical pressure column 13, reducing friction and sway during vertical sliding; the upper and lower limit blocks 14 limit the range of movement of the rectangular sleeve 15 to prevent the pressure column 13 from deforming or misaligning under high pressure; ensure smooth and stable vertical pressure application and extend the service life of the pressure column 13.

[0051] Each of the fixed seats 1 and 7 has a hole seat 8 fixed on its upper and lower sides, and each of the fixed seats 2 and 11 has a hole seat 2 and 16 fixed on its front and rear sides. A slanted post 22 is provided between the corresponding hole seat 1 and hole seat 2 and 16. Threaded posts 23 are fixed at both ends of the slanted post 22. The two threaded posts 23 on the slanted post 22 are inserted into the hole seat 1 and hole seat 2 and 16 respectively. A nut 24 is threadedly connected to the end of each threaded post 23.

[0052] like Figure 1-8 As shown;

[0053] Hole seat 1 8 and hole seat 2 16 are fixed on fixed seat 1 7 and fixed seat 2 11 respectively. The inclined column 22 is inserted into the hole seat through the threaded column 23 at both ends and locked with nut 1 24 to form an inclined support structure. The horizontal pressure component and the vertical pressure component are rigidly connected to disperse the huge stress when the six sides are pressed, prevent the frame from deforming and falling apart, and improve the structural strength and pressure resistance of the entire device.

[0054] Two support legs 21 are fixed on the lower bracket 10; two sets of separation mechanisms are provided on the upper bracket 10; the separation mechanism includes a first connecting plate 18 and a second connecting plate 19, two threaded posts 20 are fixed on the second connecting plate 19, the two threaded posts 20 are inserted into the first connecting plate 18, and the ends of the two threaded posts 20 are threadedly connected to nuts 26. The first connecting plate 18 and the second connecting plate 19 can be separated, so that the flat pressure seat 17 on the bracket 10 can be removed as a whole.

[0055] like Figure 1-8 As shown;

[0056] The legs 21 of the lower support 10 provide stable support for the device, ensuring stable placement. In the separation mechanism of the upper support 10, the connecting plate 18 and the connecting plate 29 are detachably connected by the threaded post 20 and the nut 26. Loosening the nut 26 allows the connecting plates to be separated, and the upper flat pressure seat 17 and vertical components can be quickly removed, facilitating material removal after synthesis, equipment maintenance and component replacement, and improving the ease of use of the device.

Claims

1. A six-sided pressing device for ultra-high pressure synthesis of diamond, comprising a ring frame (1), characterized in that: The ring frame (1) is provided with four fixed seats (7), each fixed seat (7) is slidably connected with a pressure column (4), and the opposite ends of the four pressure columns (4) are fixed with vertical pressure seats (2). Each vertical pressure seat (2) has a pressing surface (25) on both sides. The four vertical pressure seats (2) are pressed together by the pressing surface (25) on them, and the four vertical pressure seats (2) form a cubic space.

2. The six-sided pressing device for ultra-high pressure synthesis of diamond according to claim 1, characterized in that: A flat pressing seat (17) is provided on both the upper and lower sides of the cubic space, and the flat pressing seat (17) can be pressed into the cubic space.

3. The six-sided pressing device for ultra-high pressure synthesis of diamond according to claim 2, characterized in that: Each of the vertical pressure seats (2) is provided with guide slopes (9) on both the upper and lower sides.

4. The six-sided pressing device for ultra-high pressure synthesis of diamond according to claim 3, characterized in that: A bracket (10) is fixed between the upper and lower sides of the two fixed seats (7) on the left and right. A fixed seat (11) is provided in the middle of each bracket (10). A pressure column (13) is fixed on each flat pressure seat (17). The two pressure columns (13) are vertically slidably connected to the two fixed seats (11).

5. A six-sided pressing device for ultra-high pressure synthesis of diamond according to claim 4, characterized in that: Eight hydraulic cylinders (6) are fixed on the ring frame (1), and the movable ends of two hydraulic cylinders (6) are fixed on each vertical pressure seat (2).

6. A six-sided pressing device for ultra-high pressure synthesis of diamond according to claim 5, characterized in that: A rectangular sleeve (3) is slidably connected to the fixed base (7), and a pressure column (4) is slidably connected to the rectangular sleeve (3). A limiting block (5) is fixed at both ends of the rectangular sleeve (3). The rectangular sleeve (3) provides auxiliary support for the pressure column (4), making the pressure column (4) more stable when sliding.

7. A six-sided pressing device for ultra-high pressure synthesis of diamond according to claim 6, characterized in that: Two hydraulic cylinders (12) are fixed on each of the fixed bases (11), and the movable end of the hydraulic cylinders (12) is fixed on the corresponding flat pressure base (17).

8. A six-sided pressing device for ultra-high pressure synthesis of diamond according to claim 7, characterized in that: A rectangular sleeve (15) is vertically slidably connected to the fixed base (11), and a pressure column (13) is slidably connected to the rectangular sleeve (15). Limiting blocks (14) are fixed at both the upper and lower ends of the rectangular sleeve (15). The rectangular sleeve (15) provides auxiliary support for the pressure column (13), making the pressure column (13) more stable when sliding.

9. A six-sided pressing device for ultra-high pressure synthesis of diamond according to claim 8, characterized in that: Each of the fixed seats 1 (7) has a hole seat 1 (8) fixed on both the upper and lower sides, and each of the fixed seats 2 (11) has a hole seat 2 (16) fixed on both the front and rear sides. A slanted post (22) is provided between the corresponding hole seat 1 (8) and hole seat 2 (16). Threaded post 2 (23) is fixed at both ends of the slanted post (22). The two threaded post 2 (23) on the slanted post (22) are inserted into the hole seat 1 (8) and hole seat 2 (16) respectively. A nut 1 (24) is connected to the end of each threaded post 2 (23) by thread.

10. A six-sided pressing device for ultra-high pressure synthesis of diamond according to claim 9, characterized in that: Two legs (21) are fixed on the bracket (10) located on the lower side; two sets of separation mechanisms are provided on the bracket (10) located on the upper side; the separation mechanism includes a connecting plate one (18) and a connecting plate two (19), two threaded posts one (20) are fixed on the connecting plate two (19), the two threaded posts one (20) are inserted into the connecting plate one (18), and the ends of the two threaded posts one (20) are connected to nuts two (26) by threads. The connecting plate one (18) and the connecting plate two (19) can be separated, so that the flat pressure seat (17) on the bracket (10) can be removed as a whole.

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