Synthetic diamond pressure transmitting block pressing device

Abstract

The utility model discloses a synthetic diamond pressure transmitting block pressing device, which relates to the technical field of diamond synthesis, and comprises a processing table and a lower die, the lower die is arranged on the processing table, four support columns are connected on the processing table and around the lower die, the tops of the four support columns are jointly connected with a top plate, and the top plate is connected with the lower die. A hydraulic cylinder is installed at the bottom of the top plate, a lifting plate is jointly connected to the four supporting columns in a sliding mode, and the movable end of the hydraulic cylinder is connected with the lifting plate. According to the utility model, the auxiliary mechanism is arranged, so that the sliding rod periodically impacts the outer wall of the lower die by utilizing the descending process of the pressing die during pressing through the meshing transmission between the second spur rack and the transmission gear and the clearance meshing between the notched gear and the first spur rack; and the pressure transmission sealing material powder in the lower mold is uniformly distributed through vibration generated by impact, so that the condition of unfilled corners or non-uniform density distribution during pressing is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of diamond synthesis, in particular to a synthetic diamond pressure transmission block pressing device. Background Art

[0002] As today's superhard fine abrasive, diamond single crystal is widely used in machinery, electronics, aerospace, optical instruments, petroleum, military industry and other fields and departments, with broad development space and application prospects. In the diamond synthesis process, a pressure transfer block is required for operation. Since pyrophyllite has excellent pressure transmission and sealing properties and fluidity, the high-temperature and high-pressure sintering of polycrystalline diamond needs to be completed through a synthesis cavity provided by a pressure transfer block made of pyrophyllite and other pressure transmission and sealing materials.

[0003] Most of the existing pressure transmission blocks are manufactured by molding, that is, the pressure transmission sealing material powder is placed in a mold and then pressed into shape. However, the existing pressing device only has a pressing function. After the pressure transmission sealing material powder is poured into the mold, there is an uneven material distribution, which easily leads to the problem that the size or density data of the pressure transmission block after pressing does not meet the standard. Therefore, a synthetic diamond pressure transmission block pressing device is proposed. Utility Model Content

[0004] The utility model aims to solve the problems mentioned in the above background technology and proposes a synthetic diamond pressure transfer block pressing device.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A synthetic diamond pressure transmission block pressing device comprises a processing table and a lower mold, wherein the lower mold is installed on the processing table, and four supporting columns are connected on the processing table and around the lower mold, and the tops of the four supporting columns are commonly connected to a top plate, and a hydraulic cylinder is installed at the bottom of the top plate, and a lifting plate is commonly slidably connected to the four supporting columns, and the movable end of the hydraulic cylinder is connected to the lifting plate, and the bottom of the lifting plate is connected to a pressing die matching the lower mold, and an auxiliary mechanism is arranged on the processing table to assist in the pressing of the pressure transmission block.

[0007] Preferably, the auxiliary mechanism includes a mounting seat and a sliding rod, the mounting seat is installed on the processing table, the sliding rod is slidably connected to the mounting seat, the end of the sliding rod away from the lower mold is connected to a support plate, a spring is sleeved on the sliding rod, and the two ends of the spring are respectively connected to the support plate and the mounting seat.

[0008] Preferably, the processing table is located between the lower mold and the mounting seat and is connected to a pair of mounting plates, the pair of mounting plates are connected to a rotating shaft for common rotation, the end of the sliding rod close to the lower mold is connected to a first spur rack, a missing gear and a transmission gear are coaxially connected to the rotating shaft, the missing gear is meshed with the first spur rack, and a second spur rack is connected to the bottom of the lifting plate, and the second spur rack is meshed with the transmission gear.

[0009] Preferably, a one-way bearing is provided between the transmission gear and the rotating shaft.

[0010] Preferably, a connecting port is provided on the processing table for lifting and shuttling of the second spur rack.

[0011] Compared with the prior art, the utility model has the following advantages:

[0012] The utility model is provided with an auxiliary mechanism, which utilizes the descending process of the die during pressing, through the meshing transmission of the second spur rack and the transmission gear, and the intermittent meshing of the notched gear and the first spur rack, so that the slide bar periodically impacts the outer wall of the lower die, and the vibration generated by the impact makes the pressure-transmitting sealing material powder in the lower die evenly distributed, thereby avoiding the occurrence of missing corners or uneven density distribution during pressing. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model.

[0014] Figure 2 It is a structural schematic diagram of the auxiliary mechanism part in the utility model.

[0015] In the figure: 1 processing table, 2 lower mold, 3 support column, 4 top plate, 5 hydraulic cylinder, 6 lifting plate, 7 die, 8 mounting seat, 9 slide bar, 10 support plate, 11 spring, 12 mounting plate, 13 rotating shaft, 14 first spur rack, 15 missing gear, 16 second spur rack, 17 transmission gear, 18 connecting port. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0017] Reference Figure 1-2As shown, a synthetic diamond pressure transfer block pressing device comprises a processing table 1 and a lower mold 2, wherein the lower mold 2 is mounted on the processing table 1, and four support columns 3 are connected on the processing table 1 and around the lower mold 2, and the tops of the four support columns 3 are commonly connected to a top plate 4, and a hydraulic cylinder 5 is installed at the bottom of the top plate 4, and a lifting plate 6 is commonly slidably connected to the four support columns 3, and the movable end of the hydraulic cylinder 5 is connected to the lifting plate 6, and the bottom of the lifting plate 6 is connected to a pressing die 7 matching the lower mold, and an auxiliary mechanism is arranged on the processing table 1 for assisting the pressing of the pressure transfer block.

[0018] In this embodiment, the auxiliary mechanism includes a mounting seat 8 and a sliding rod 9. The mounting seat 8 is installed on the processing table 1. The sliding rod 9 is slidably connected to the mounting seat 8. The end of the sliding rod 9 away from the lower mold 2 is connected to a support plate 10. A spring 11 is sleeved on the sliding rod 9, and the two ends of the spring 11 are respectively connected to the support plate 10 and the mounting seat 8. The spring 11 is always in a stretched state.

[0019] In this embodiment, the processing table 1 is located between the lower mold 2 and the mounting seat 8 and is connected to a pair of mounting plates 12. A rotating shaft 13 is connected to the pair of mounting plates 12 for common rotation. A first spur rack 14 is connected to one end of the slide bar 9 close to the lower mold 2. A missing gear 15 and a transmission gear 17 are coaxially connected to the rotating shaft 13. The missing gear 15 is meshed with the first spur rack 14. A second spur rack 16 is connected to the bottom of the lifting plate 6. The second spur rack 16 is meshed with the transmission gear 17. A one-way bearing is arranged between the transmission gear 17 and the rotating shaft 13. When the second spur rack 16 descends, the rotation of the transmission gear 17 rotates the rotating shaft 13 together. When the second spur rack 16 rises, the transmission gear 17 only rotates by itself. When the die 7 enters the lower mold 2, the second spur rack 16 and the transmission gear 17 are just disconnected from each other.

[0020] In this embodiment, a communication port 18 is provided on the processing table 1 for the lifting and shuttling of the second spur rack 16 .

[0021] Working process and principle:

[0022] When in use, first pour the pressure transmission sealing material powder into the lower mold 2, then start the hydraulic cylinder 5 to push the lifting plate 6 and the die 7 down. During the descent of the lifting plate 6, the meshing transmission of the second spur rack 16 and the transmission gear 17 drives the rotating shaft 13 to rotate, and the missing gear 15 on the rotating shaft 13 is intermittently meshed with the first spur rack 14. When the missing gear 15 is meshed with the first spur rack 14, the slide bar 12 slides to the left to further stretch the spring 11. When the missing gear 15 is disconnected from the first spur rack 14, the slide bar 9 slides to the right under the action of the spring 11 to hit the outer wall of the lower mold 2. The vibration generated by the impact of the slide bar 9 makes the pressure transmission sealing material powder in the lower mold 2 evenly distributed, avoiding the occurrence of missing corners or uneven density distribution during pressing. Due to the effect of the one-way bearing, when the die 7 rises after pressing, the rotation direction of the transmission gear 16 will not drive the rotating shaft 13 to rotate, avoiding the impact of the pressure transmission block after pressing.

[0023] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A synthetic diamond pressure transfer block pressing device, characterized in that: The invention comprises a processing table (1) and a lower mold (2), wherein the lower mold (2) is mounted on the processing table (1), and four support columns (3) are connected on the processing table (1) and around the lower mold (2), and the tops of the four support columns (3) are commonly connected to a top plate (4), and a hydraulic cylinder (5) is installed at the bottom of the top plate (4), and a lifting plate (6) is commonly slidably connected to the four support columns (3), and the movable end of the hydraulic cylinder (5) is connected to the lifting plate (6), and the bottom of the lifting plate (6) is connected to a pressing die (7) matching the lower mold, and an auxiliary mechanism is arranged on the processing table (1) for assisting the pressing of the pressure transmission block.

2. A synthetic diamond pressure transfer block pressing device according to claim 1, characterized in that: The auxiliary mechanism comprises a mounting seat (8) and a sliding rod (9), wherein the mounting seat (8) is mounted on the processing table (1), and the sliding rod (9) is slidably connected to the mounting seat (8), and one end of the sliding rod (9) away from the lower mold (2) is connected to a support plate (10), and a spring (11) is sleeved on the sliding rod (9), and the two ends of the spring (11) are respectively connected to the support plate (10) and the mounting seat (8).

3. A synthetic diamond pressure transfer block pressing device according to claim 2, characterized in that: The processing table (1) is located between the lower mold (2) and the mounting seat (8) and is connected to a pair of mounting plates (12). A rotating shaft (13) is connected to the pair of mounting plates (12) for common rotation. The end of the slide bar (9) close to the lower mold (2) is connected to a first straight rack (14). A missing gear (15) and a transmission gear (17) are coaxially connected to the rotating shaft (13). The missing gear (15) is meshed with the first straight rack (14). The bottom of the lifting plate (6) is connected to a second straight rack (16), and the second straight rack (16) is meshed with the transmission gear (17).

4. A synthetic diamond pressure transfer block pressing device according to claim 3, characterized in that: A one-way bearing is arranged between the transmission gear (17) and the rotating shaft (13).

5. The synthetic diamond pressure transfer block pressing device according to claim 3, characterized in that: The processing table (1) is provided with a communication port (18) for the lifting and shuttling of the second spur rack (16).

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