Removing device suitable for removing diamond graphite

Abstract

The utility model relates to a removing device suitable for removing diamond graphite. The removing device comprises a test platform, the objective table is used for placing a to-be-treated diamond and is connected to the test platform through a connecting rod, so that a preset height is kept between the objective table and the plane where the test platform is located; the gas pipe assembly is also arranged on the test platform and used for providing combustible gas capable of generating flames, and an outlet of the gas pipe assembly faces one side wall of the to-be-treated diamond; the pressing block is arranged on the objective table and used for pressing the upper surface of the diamond to be treated; the driving assembly is used for driving the pressing block to tightly press the diamond to be treated placed on the objective table so as to isolate oxygen on the upper surface and the lower surface of the diamond, driving the pressing block and the diamond to synchronously rotate relative to the objective table, and removing graphite on each side wall of the diamond by virtue of flames generated by the air pipe assembly; the actuating piece is used for actuating the pressing block to be away from the objective table. The upper surface and the lower surface of the diamond are isolated from oxygen and protected, and ablation or etching pits are not prone to being generated on the upper surface and the lower surface.

Description

Technical Field

[0001] The utility model relates to the field of diamond processing equipment, in particular to a removal device suitable for removing diamond graphite. Background Art

[0002] Diamond, an allotrope of carbon, is renowned for its exceptional hardness and excellent thermal conductivity, exceeding that of traditional heat sink materials (such as copper) by more than five times. Diamond heat sinks operate on the fundamental principle of heat conduction. These diamond heat sinks are typically formed by laser slicing diamond. Laser slicing produces graphite, which conducts electricity and can cause the top and bottom surfaces of the heat sink to become conductive, rendering them unusable. Therefore, the graphite on the diamond surface must be cleaned.

[0003] Since both graphite and diamond are very stable, conventional graphite removal treatment is to heat the diamond to above 500°C in a vacuum furnace and introduce a small amount of oxygen for etching. For example, the invention application "A Method for Preparing Diamond by MPCVD" with patent application number CN202110534190.5 (publication number CN113278946A) discloses a method for removing graphite, which effectively solves the problems of large diamond particles, graphite, and polycrystals that are easily formed on the surface of the diamond substrate. When laser slicing diamond, more graphite remains on the side walls of the diamond. The above-mentioned method of removing graphite can remove the graphite on the side walls of the diamond, but it is easy to produce ablation or etching pits on the upper and lower surfaces of the diamond, so further improvement is needed. Utility Model Content

[0004] The technical problem to be solved by the present invention is to provide a removal device suitable for removing diamond graphite, which is not easy to cause ablation or etching pits on the upper and lower surfaces of the diamond, in response to the above-mentioned existing technical status, especially for the situation where more graphite remains on the side wall of the diamond.

[0005] The technical solution adopted by the utility model to solve the above technical problems is: the removal device suitable for removing diamond graphite includes:

[0006] test platform;

[0007] A loading platform, for placing the diamond to be processed thereon, connected to the test platform via a connecting rod so as to maintain a preset height with the plane where the test platform is located;

[0008] A gas pipe assembly is also provided on the test platform and is used to provide a combustible gas capable of generating a flame, wherein the outlet of the gas pipe assembly faces one of the side walls of the diamond to be processed;

[0009] It is characterized by: also including

[0010] A pressing block, provided on the stage, for pressing on the upper surface of the diamond to be processed;

[0011] a driving assembly for driving the pressing block to press the diamond to be processed placed on the stage to isolate oxygen from the upper and lower surfaces of the diamond to be processed, and driving the pressing block and the diamond to be processed to rotate synchronously relative to the stage, and removing graphite on the side walls of the diamond to be processed by means of the flame generated by the aforementioned air pipe assembly; and

[0012] An actuating member is used to actuate the pressing block to move away from the loading platform.

[0013] The actuator can be a motor directly, but from the perspective of cost saving, preferably, the test platform is equipped with a frame, the frame including a first vertical rod coaxially arranged with the connecting rod, and the actuator is a rod-shaped driving rod, the driving rod is hinged to the first vertical rod via a first pin, and the driving rod is divided by the first pin into a first rod section facing the pressure block and a second rod section away from the pressure block. The end of the first rod section acts on the pressure block, and when the operator holds the second rod section and rotates the first rod section around the first pin, the pressure block can be driven away from the loading platform. During operation, the operator can drive the pressure block away from the loading platform by rotating the second rod section, which has a simple structure and is convenient and quick to operate.

[0014] In order to enable the first rod segment to drive the pressure block upward to place or remove the diamond to be processed on the loading platform, the pressure block is further provided with a retaining member for the end of the first rod segment to abut against. The end of the first rod segment cooperates with the retaining member to drive the pressure block upward relative to the loading platform. The retaining member is more protruding than the loading platform. When the first rod segment rotates downward and the end is released from the abutment state with the retaining member, the pressure block moves downward under the combined action of its own gravity and the drive assembly, thereby pressing the diamond to be processed placed on the loading platform. Because the retaining member is more protruding than the loading platform, the first rod segment will not hit the loading platform when rotating downward and become stuck and stop rotating, thus ensuring the smooth rotation of the drive rod.

[0015] To allow the pressure block room to move upward, the frame further includes a second crossbar connected to the first vertical bar and arranged parallel to the test platform. The drive assembly is suspended below the second crossbar and includes a gas spring cylinder whose extension and retraction direction is parallel to the axis of the connecting rod. This gas spring cylinder acts on the pressure block and ensures that it always has a tendency to compress the diamond to be processed. Thus, when the first rod segment drives the pressure block upward, the gas spring rod compresses, allowing the pressure block to move upward; when the first rod segment rotates downward, the pressure block presses against the diamond to be processed resting on the stage, and the gas spring cylinder returns to its initial state, applying force to the pressure block, further strengthening its compression.

[0016] To drive the compact and the diamond to be processed to rotate and remove graphite, the drive assembly further includes a motor. The motor is mounted at the end of the second crossbar, with its power output directly connected to the gas spring cylinder, thereby driving the compact and the diamond to be processed to rotate synchronously relative to the loading platform. The motor is connected to the compact via the gas spring cylinder, acting on the compact, thereby driving the compact and the diamond to be processed to rotate synchronously relative to the loading platform.

[0017] Furthermore, the lower section of the first vertical rod is hollow, and the gas pipe assembly includes an external gas supply pipe and an outlet pipe connected to the gas supply pipe. The outlet of the outlet pipe faces one of the side walls of the diamond to be processed, and the gas supply pipe can pass through the hollow section and connect to the outlet pipe. In this way, combustible gas enters the outlet pipe through the gas supply pipe and performs flame treatment on the side wall of the diamond to be processed where graphite needs to be removed.

[0018] To automatically control the operation of the air pipe assembly and drive assembly after the compact presses down on the diamond to be processed, the test platform is further equipped with a pressure sensor to detect whether the compact presses down on the diamond to be processed. When the pressure sensor detects that the compact presses down on the diamond to be processed, the air pipe assembly operates, and the drive assembly drives the compact and the diamond to be processed to rotate synchronously relative to the stage, using flames to remove graphite from the sidewalls of the diamond to be processed.

[0019] Compared with the prior art, the advantages of the present invention are as follows: the driving assembly in the removal device suitable for removing diamond graphite is used to drive the pressing block to press the diamond to be processed placed on the stage to isolate oxygen from the upper and lower surfaces of the diamond to be processed, and drive the pressing block and the diamond to be processed to rotate synchronously relative to the stage, and use the flame generated by the air pipe assembly to remove the graphite on each side wall of the diamond to be processed; in this way, when the flame removes the graphite on each side wall of the diamond to be processed, the upper and lower surfaces of the diamond to be processed are isolated from oxygen and protected, and it is not easy to produce ablation or etching pits on the upper and lower surfaces of the diamond. The entire treatment process has low energy consumption, short treatment time, simple operation, and is environmentally friendly, dust-free and pollution-free. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of a removal device for removing diamond graphite in an embodiment of the present utility model, in which a pressing block is pressed against the diamond to be processed;

[0021] Figure 2 This is a schematic structural diagram of a removal device suitable for removing diamond graphite in an embodiment of the present utility model, in which the pressing block does not compress the diamond to be processed. DETAILED DESCRIPTION

[0022] The present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

[0023] like Figure 1 and Figure 2 FIG. 1 is a preferred embodiment of the present invention. The removal device for removing diamond graphite in this embodiment includes a stage 1, a test platform 2, an air pipe assembly 3, a pressure block 4, a drive rod 5, a drive assembly 6, a pressure sensor 7, a connecting rod 8, a frame 9, and a first pin 10.

[0024] Among them, the test platform 2 is provided with a pressure sensor 7 and a frame 9, above the pressure sensor 7 is provided with a connecting rod 8 and a stage 1 for placing the diamond A to be processed thereon, which is provided above the connecting rod 8. The stage 1 and the plane where the test platform 2 are located maintain a preset height. The pressure block 4 is provided on the stage 1 for pressing on the upper surface of the diamond A to be processed, and the pressure sensor 7 is used to detect whether the pressure block 4 presses down the diamond A to be processed.

[0025] In this embodiment, the material of the stage 1 and the pressing block 4 is copper or stainless steel with a melting point higher than 1000°C and a mirror-like roughness on the upper and lower surfaces. In this way, when the pressing block 4 presses the diamond A to be processed placed on the stage 1, it can isolate the oxygen on the upper and lower surfaces of the diamond A to be processed.

[0026] The frame 9 includes a first vertical rod 91 coaxially arranged with the connecting rod 8, and a second horizontal rod 92 connected to the first vertical rod 91 and arranged parallel to the test platform 2. The first vertical rod 91 is mounted on the test platform 2, and the lower section of the first vertical rod 91 is hollow. The gas pipe assembly 3, which is used to provide a flammable gas capable of generating a flame, includes an external gas supply pipe 31 and a gas outlet pipe 32 connected to the gas supply pipe 31. The outlet of the gas outlet pipe 32 faces one of the side walls of the diamond A to be processed, where graphite needs to be removed. The gas supply pipe 31 can pass through the hollow section and connect to the gas outlet pipe 32. In this way, the combustible gas enters the gas outlet pipe 32 through the gas supply pipe 31 and performs a flame treatment on the side wall of the diamond A to be processed where graphite needs to be removed.

[0027] In this embodiment, the rod-shaped drive rod 5 is hinged to the first vertical rod 91 via a first pin 10. The drive rod 5 is divided by the first pin 10 into a first rod section 51 facing the pressure block 4 and a second rod section 52 away from the pressure block 4. The pressure block 4 is provided with a retaining member 41 for the end of the first rod section 51 to abut and act upon. The retaining member 41 protrudes further than the loading platform 1. The end of the first rod section 51 cooperates with the retaining member 41 to drive the pressure block 4 upward relative to the loading platform 1. When the operator holds the second rod section 52 and rotates the first rod section 51 around the first pin 10, the pressure block 4 can be actuated away from the loading platform 1.

[0028] The drive assembly 6 is suspended below the second crossbar 92 and includes a gas spring cylinder 61 and a motor 62. The gas spring cylinder 61 extends and contracts in a direction parallel to the axis of the connecting rod 8 and acts on the pressure block 4, ensuring that the pressure block 4 always has a tendency to compress the diamond A to be processed. The motor 62 is mounted at the end of the second crossbar 92, with its power output directly connected to the gas spring cylinder 61, which in turn drives the pressure block 4 and the diamond A to be processed to rotate synchronously relative to the stage 1. The drive assembly 6 can drive the pressure block 4 to compress the diamond A to be processed resting on the stage 1, thereby isolating the upper and lower surfaces of the diamond A to be processed, and drives the pressure block 4 and the diamond A to be processed to rotate synchronously relative to the stage 1. The flame generated by the aforementioned air pipe assembly 3 can also be used to remove graphite from the side walls of the diamond A to be processed.

[0029] The working principle of this embodiment is:

[0030] First, the operator holds the second rod section 52 and rotates it downward, while the first rod section 51 rotates upward, causing the end of the rod section 51 to abut against the retaining member 41, thereby driving the pressing block 4 to move upward, and placing the diamond A to be processed on the stage 1. Then, the operator holds the second rod section 52 and rotates it upward, while the first rod section 51 rotates downward, releasing the end of the rod section from abutting against the retaining member 41. The pressing block 4 moves downward under the action of gravity and the gas spring cylinder 61, pressing the diamond A to be processed placed on the stage 1.

[0031] Second, after the pressure sensor 7 detects that the compact 4 is pressing down on the diamond A to be processed, the air pipe assembly 3 is ignited, and the motor 62 is started and rotates one circle to drive the compact 4 and the diamond A to be processed to rotate 360 ​​degrees relative to the stage 1 synchronously. The flame generated by the air pipe assembly 3 can remove the graphite on the side walls of the diamond A to be processed;

[0032] 3. After the treatment is completed, turn off or adjust the minimum firepower, use the driving rod 5 to raise the pressing block 4, take out the treated diamond, and put in the next piece of diamond A to be treated.

Claims

1. A removal device suitable for removing diamond graphite, comprising Test platform (2); A loading platform (1) is used for placing the diamond (A) to be processed thereon, and is connected to the test platform (2) via a connecting rod (8) so as to maintain a preset height with the plane where the test platform (2) is located; A gas pipe assembly (3), also provided on the test platform (2), is used to provide a combustible gas capable of generating a flame, wherein the outlet of the gas pipe assembly (3) faces one of the side walls of the diamond (A) to be processed; Its characteristics are: Also includes A pressing block (4) is provided on the stage (1) and is used to press on the upper surface of the diamond (A) to be processed; A driving assembly (6) is used to drive the pressing block (4) to press the diamond (A) to be processed placed on the stage (1) to isolate oxygen from the upper and lower surfaces of the diamond (A) to be processed, and to drive the pressing block (4) and the diamond (A) to be processed to rotate synchronously relative to the stage (1), and to remove graphite on each side wall of the diamond (A) to be processed by means of the flame generated by the aforementioned air pipe assembly (3); as well as An actuating member is used for actuating the pressing block (4) to move away from the loading platform (1).

2. The removal device according to claim 1, characterized in that: A frame (9) is installed on the test platform (2), and the frame (9) includes a first vertical rod (91) coaxially arranged with the connecting rod (8). The actuating member is a rod-shaped driving rod (5), and the driving rod (5) is hinged to the first vertical rod (91) through a first pin shaft (10). The driving rod (5) is divided by the first pin shaft (10) into a first rod section (51) facing the pressure block (4) and a second rod section (52) away from the pressure block (4). The end of the first rod section (51) acts on the pressure block (4). When the operator holds the second rod section (52) and rotates the first rod section (51) around the first pin shaft (10), the pressure block (4) can be driven away from the loading platform (1).

3. The removal device according to claim 2, characterized in that: The pressing block (4) is provided with a retaining piece (41) for the end of the first rod section (51) to abut against. The end of the first rod section (51) can drive the pressing block (4) to move upward relative to the loading platform (1) by cooperating with the retaining piece (41). The retaining piece (41) is more protruding than the loading platform (1).

4. The removal device according to claim 3, characterized in that: The frame (9) further comprises a second crossbar (92) connected to the first vertical bar (91) and arranged parallel to the test platform (2); the drive assembly (6) is suspended under the second crossbar (92) and comprises a gas spring cylinder (61) whose telescopic direction is parallel to the axis of the connecting rod (8); the gas spring cylinder (61) acts on the pressure block (4) and ensures that the pressure block (4) always has a tendency to press the diamond (A) to be processed.

5. The removal device according to claim 4, characterized in that: The driving assembly (6) further comprises a motor (62), which is mounted at the end of the second crossbar (92), and whose power output end is directly connected to the gas spring cylinder (61), thereby driving the pressing block (4) and the diamond to be processed (A) to rotate synchronously relative to the loading platform (1).

6. The removal device according to any one of claims 2 to 5, characterized in that: The lower section of the first vertical rod (91) is a hollow section. The air pipe assembly (3) includes an air supply pipe (31) located outside and an air outlet pipe (32) connected to the air supply pipe (31). The outlet of the air outlet pipe (32) faces one of the side walls of the diamond (A) to be processed, and the air supply pipe (31) can pass through the hollow section and connect with the air outlet pipe (32).

7. The removal device according to claim 6, characterized in that: The test platform (2) is also provided with a pressure sensor (7) for detecting whether the pressing block (4) presses down the diamond (A) to be processed.

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