A preparation device for diamond and dental high-speed turning needle by MPCVD method

Abstract

The invention discloses a preparation device for diamond and dental high-speed turning needle by MPCVD method, and relates to the technical field of dental turning needle. The device comprises a reaction chamber and an upper shell which is detachably mounted on the top of the reaction chamber. A sealing strip is used to seal the connection between the bottom of the upper shell and the reaction chamber. An electric-controlled telescopic rod is fixedly mounted on the inner side wall of the bottom of the reaction chamber. The top of the movable end of the electric-controlled telescopic rod is set in a round cake shape. The top of the movable end of the electric-controlled telescopic rod is rotatably sleeved with an inner base. The electric-controlled telescopic rod, a clamping plate and a clamping rod are provided, and the processing position of the dental turning needle can be adjusted by lifting. A rotating mechanism is provided, and the dental turning needle can also be rotated while lifting, so that the deposition of the diamond film is more uniform. An auxiliary mechanism is provided, and the auxiliary mechanism can clamp dental turning needles of different specifications, thereby improving the stability when clamping dental turning needles of different specifications, thereby improving the overall processing work efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of dental turning needles, in particular to equipment for preparing diamond and dental high-speed turning needles using an MPCVD method. Background Art

[0002] Microwave plasma chemical vapor deposition (MPCVD) is a key device for preparing diamond. It consists of a microwave source, a circulator, an impedance matcher, a waveguide, a mode converter, a coaxial structure, etc. It converts electrical energy into microwave energy and transmits it to the resonant cavity, forming a microwave field of a specific mode in the resonant cavity, ionizing the reaction gas to form plasma, thereby achieving the deposition and growth of diamond.

[0003] Traditional dental needles are mostly made by combining a grinding layer embedded with diamond particles on a metal needle substrate, mainly using electroplating and brazing. The electroplating method has problems such as low holding force of diamond abrasive particles, easy shedding, too deep coating resulting in reduced processing sharpness and insufficient chip space; the brazing method also has some process challenges and limitations. In recent years, chemical vapor deposition (CVD) has gradually been applied to the subsequent processing of needles, enhancing the wear resistance and cutting efficiency of needles. The diamond film prepared by MPCVD has the advantages of high hardness, high wear resistance and good chemical stability, which can effectively improve the service life and cutting performance of the needle.

[0004] In the prior art, as the crystal thickness increases, the crystal surface is closer to the plasma, and as the deposition size increases, the difficulty and cost of preparing optical-grade diamond films will also increase. It is necessary to overcome process problems such as how to improve the deposition uniformity, internal defects and integrity of the diamond film. Summary of the invention

[0005] The object of the present invention is to provide a device for preparing diamond and dental high-speed turning needles by MPCVD method, so as to solve the above-mentioned problem of how to improve the uniformity of deposition as the deposition size changes.

[0006] The present invention is achieved through the following technical solutions:

[0007] A preparation device for diamond and dental high-speed turning needle by MPCVD method, comprising a reaction chamber and:

[0008] The upper shell is detachably mounted on the top of the reaction chamber, and a sealing strip is used to seal the connection between the bottom of the upper shell and the reaction chamber. An electric telescopic rod is fixedly mounted on the inner wall of the bottom of the reaction chamber, and the top of the movable end of the electric telescopic rod is set to be a round pancake shape. The top of the movable end of the electric telescopic rod is rotatably sleeved with an inner base, and an outer base is rotatably mounted on the outside of the inner base, so that the inner base and the outer base have the ability to adjust their height.

[0009] Furthermore, a clamping rod is slidably mounted on the top of the inner base, and a clamping plate is fixedly mounted on one end of the clamping rod close to the center of the inner base to clamp the dental needle.

[0010] Furthermore, an annular groove is provided on the outer wall of the external base, and a limiting kit is slidably installed on the annular groove. The limiting kit is composed of a slide plate with a bottom that can slide along the annular groove and a sleeve with a top that can be sleeved on the outside of the clamping rod. The slide plate at the bottom of the limiting kit is provided with a protrusion and is located in a recessed position inside the annular groove. An elastic element is provided between the outermost end of the clamping rod and the inner wall of the sleeve of the limiting kit.

[0011] Furthermore, a rotating mechanism is also provided in the reaction chamber, and the rotating mechanism includes a fixed track, and the fixed track is fixedly installed at the bottom of the reaction chamber. A gap is provided between the bottom of the fixed track and the bottom of the reaction chamber to restrict the movement of the rotating rod.

[0012] Furthermore, a rotating rod is rotatably installed at the bottom of the external base, and the bottom of the rotating rod is set to a transverse cylindrical shape. The cylindrical end of the bottom of the rotating rod is slidably installed in the gap between the fixed track and the bottom of the reaction chamber. The cylindrical end of the rotating rod is restricted by the fixed track and can only move along the fixed track.

[0013] Furthermore, a push rod is rotatably installed on the outside of the rotating rod, and one end of the push rod away from the rotating rod is rotatably installed on the bottom of the connecting rod. The top of the connecting rod is fixedly installed on the bottom of the inner base. The initial position of the connecting rod is located at one-eighth of the circle of the bottom of the inner base. An angle is formed between the connecting rod and the rotating rod to facilitate the rotation.

[0014] Furthermore, the splint is also provided with an auxiliary mechanism, which includes an upper torsion spring rod, and the upper torsion spring rod and the lower torsion spring rod are rotatably installed on the back of the splint. The upper torsion spring rod and the lower torsion spring rod utilize the elastic force of the torsion spring to act on the back of the splint to form an elastic connection, so that the rotation of the upper torsion spring rod has an elastic restoring force.

[0015] Furthermore, the upper torsion spring rod is tilted downward, the lower torsion spring rod is tilted upward, an L-shaped rod is inserted into and slidably installed on the clamp rod, a push plate is fixedly installed on the outside of the L-shaped rod, and the movement of the push plate can drive the upper torsion spring rod and the lower torsion spring rod to rotate.

[0016] Furthermore, the push plate is slidably installed on the back side of the splint, and the push plate is located between the upper torsion spring rod and the lower torsion spring rod. A three-fold rod is rotatably installed on the top of the upper torsion spring rod. The outside of the three-fold rod is fixedly installed on the top of the auxiliary clamping block. The auxiliary clamping block is slidably installed on the front outer wall of the splint to assist in clamping dental needles of different specifications and improve stability.

[0017] Furthermore, a limiting rod is inserted into and slidably installed on the top of the clamping plate, the top of the limiting rod is fixedly installed on the three-fold rod, and an empty groove is opened at the bottom of the clamping plate.

[0018] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0019] 1. The present invention is provided with an electric-controlled telescopic rod, a clamping plate and a clamping rod. The electric-controlled telescopic rod has a high lifting speed, can quickly adjust the position of the dental needle, reduces the waiting time in the production process, improves the production efficiency, and realizes the precise control of the position of the dental needle, ensures that the deposition position and thickness of the diamond film on the surface of the dental needle are uniform, improves the quality and stability of the product, and can absorb and disperse external impact or vibration through the buffer force provided by the elastic element, protect the base and the clamping mechanism, and improve the stability of the dental needle during processing;

[0020] 2. The present invention is provided with a rotating mechanism. When the electric telescopic rod is lifted up and down, the movement of the rotating rod will drive the push rod to move forward and backward, and the forward and backward movement of the push rod will push the connecting rod to move, and the connecting rod will drive the inner base to rotate clockwise or counterclockwise, so that when the electric telescopic rod is lifted up and down, the inner base will also rotate, thereby causing the angle of the dental needle to change during processing, so that when the diamond film is deposited, the height of the electric telescopic rod is adjusted while adjusting the angle, so that the deposited film layer can be more uniform, thereby improving the overall work efficiency;

[0021] 3. The present invention is provided with an auxiliary mechanism. When it is necessary to clamp dental burs of different specifications, the L-shaped rod is pressed toward the clamping rod, and the L-shaped rod rotates by squeezing the upper torsion spring rod through the push plate, thereby pushing the three-fold rod to drive the auxiliary clamping block to move. After the dental bur is placed, the L-shaped rod is released, and the upper torsion spring rod drives the three-fold rod to move downward, and the three-fold rod drives the auxiliary clamping block to move downward to clamp the dental bur. In addition, dental burs of different specifications can be auxiliary clamped, and further auxiliary clamping operations can be performed on dental burs of different specifications, thereby improving the stability of the dental bur when being clamped, and ensuring that the overall processing flow will not be offset.

[0022] 4. In the present invention, the setting of the empty groove can provide space for the flow of gas at the bottom of the dental needle, thereby avoiding the difficulty of gas flow at the bottom of the dental needle during clamping, thereby avoiding affecting the deposition of the diamond film, and at the same time having a heat dissipation effect, providing space for the flow of heat, and the empty groove can disperse the clamping force, so that the pressure on the dental needle during the clamping process is more uniform, thereby improving the stability and reliability of the clamping, and when the lower torsion spring rod is squeezed and rotated downward by the push plate, it will scrape the empty groove, scrape off the film block and other materials attached to the back of the empty groove, and avoid affecting the smoothness of the space passing through the empty groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings described herein are used to provide a further understanding of the embodiments of the present invention, constitute a part of this application, and do not constitute a limitation of the embodiments of the present invention. In the drawings:

[0024] Figure 1 It is a schematic diagram of the overall external structure of the present invention;

[0025] Figure 2 It is a schematic diagram of the internal structure of the upper shell from the bottom;

[0026] Figure 3 It is a schematic diagram of the internal structure of the reaction chamber from a top view;

[0027] Figure 4 It is a schematic diagram of the external local structure of the rotating rod;

[0028] Figure 5 This is a schematic diagram of the external local structure of the external base from the bottom view;

[0029] Figure 6 It is a schematic diagram of the external local structure of the splint from the right side;

[0030] Figure 7 It is a schematic diagram of the external local structure of the splint from the left side;

[0031] Figure 8 This is a schematic diagram of the external structure of the limit kit;

[0032] Fig. 9 It is a schematic diagram of the external structure of the electric control telescopic rod;

[0033] Fig.10 This is a schematic diagram of the external structure of the inner base from the bottom view.

[0034] The reference numerals represent: 1-reaction chamber, 2-upper shell, 3-electrically controlled telescopic rod, 4-inner base, 5-outer base, 6-clamp rod, 7-annular slide groove, 8-limiting kit, 9-clamp plate, 10-fixed track, 11-rotating rod, 12-push rod, 13-connecting rod, 14-upper torsion spring rod, 15-lower torsion spring rod, 16-L-shaped rod, 17-push plate, 18-three-fold rod, 19-auxiliary clamp block, 20-limiting rod, 21-empty slot. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical scheme and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments and drawings. The schematic implementation modes and descriptions of the present invention are only used to explain the present invention and are not intended to limit the present invention. It should be noted that the present invention is already in the actual development and use stage.

[0036] like Figures 1 to 10As shown, the present invention includes a reaction chamber 1, and also includes:

[0037] The upper shell 2 is detachably mounted on the top of the reaction chamber 1. The bottom of the upper shell 2 and the connection between the reaction chamber 1 are sealed and installed with a sealing strip. An electric-controlled telescopic rod 3 is fixedly mounted on the inner wall of the bottom of the reaction chamber 1. The top of the movable end of the electric-controlled telescopic rod 3 is set to a round pancake shape. The top of the movable end of the electric-controlled telescopic rod 3 is rotatably sleeved with an inner base 4. The round pancake shape of the movable end of the electric-controlled telescopic rod 3 can cooperate with the inner base 4, so that the electric-controlled telescopic rod 3 drives the inner base 4 to rise and fall, and the inner base 4 can also rotate. The outer base 5 is rotatably mounted on the outside of the inner base 4.

[0038] A clamping rod 6 is slidably installed on the top of the inner base 4, and a clamping plate 9 is fixedly installed on one end of the clamping rod 6 close to the center of the inner base 4. An annular groove 7 is opened on the outer wall of the outer base 5, and a limiting kit 8 is slidably installed on the annular groove 7. The limiting kit 8 is composed of a slide plate whose bottom can slide along the annular groove 7 and a sleeve that can be sleeved on the outside of the clamping rod 6 at the top. The slide plate at the bottom of the limiting kit 8 is provided with a protrusion located in the concave part inside the annular groove 7 to prevent the slide plate from escaping from the annular groove 7 when sliding. An elastic element is provided between the outermost end of the clamping rod 6 and the inner wall of the sleeve of the limiting kit 8. Here, a buffer spring is used as the elastic element, so that the sliding of the clamping rod 6 has an elastic restoring force. In the absence of external force, the clamping rod 6 will return to its initial position due to the elastic force. At the same time, since a buffer spring is used, a buffering capacity is also provided for the clamping rod 6 to cope with the vibration generated by the entire device.

[0039] In the above technical scheme, the dental needle to be processed is placed on the inner base 4 and clamped with the splint 9. The elastic element between the clamp rod 6 and the sleeve of the limit kit 8 is used for elastic clamping. Then the staff controls the electric telescopic rod 3 to perform lifting operation to drive the inner base 4 and the outer base 5 to be lifted and moved to a suitable position. Since vibration will be generated when the electric telescopic rod 3 is lifted and lowered, and since the elastic element uses a buffer spring, the clamping effect of the clamp rod 6 has a buffering effect, thereby improving the stability of the splint 9 when clamping the dental needle, thereby improving the overall work efficiency. Then, the MPCVD device is started to deposit the diamond film. During the deposition process, the height of the inner base 4 and the outer base 5 and the position of the dental needle can be adjusted according to the actual situation through the lifting and lowering operation of the electric telescopic rod 3 to ensure the uniformity of the deposition effect. The device may generate certain vibrations during operation, and these vibrations may affect the deposition quality of the diamond film. Therefore, the buffering function of the elastic element can reduce the impact of external vibrations on the dental needle, ensure the stability of the deposition process, thereby improving the quality of the diamond film and reducing defects in the film layer. Finally, by providing an electrically controlled telescopic rod 3, a clamping plate 9 and a clamping rod 6, the electrically controlled telescopic rod 3 has a high lifting speed, can quickly adjust the position of the needle, reduce the waiting time in the production process, improve production efficiency, and achieve precise control of the position of the dental needle, ensure that the deposition position and thickness of the diamond film on the surface of the dental needle are uniform, improve the quality and stability of the product, and the buffering force provided by the elastic element can absorb and disperse external shocks or vibrations, protect the base and the clamping mechanism, and improve the stability of the dental needle during processing.

[0040] like Figure 3 , Figure 4 and Figure 5 As shown, in the present invention, a rotating mechanism is also provided in the reaction chamber 1, and the rotating mechanism includes a fixed track 10, and the fixed track 10 is fixedly installed at the bottom of the reaction chamber 1, and a gap is provided between the bottom of the fixed track 10 and the bottom of the reaction chamber 1, and a rotating rod 11 is rotatably installed at the bottom of the outer base 5, and the bottom of the rotating rod 11 is set as a transverse cylindrical shape, and the cylindrical end at the bottom of the rotating rod 11 is slidably installed in the gap between the fixed track 10 and the bottom of the reaction chamber 1, so that the rotating rod 11 can slide along the fixed track 10 and can also rotate without leaving the fixed track 10, and a push rod 12 is rotatably installed on the outside of the rotating rod 11, and one end of the push rod 12 away from the rotating rod 11 is rotatably installed at the bottom of the connecting rod 13, and the top of the connecting rod 13 is fixedly installed at the bottom of the inner base 4, and the initial position of the connecting rod 13 is located at one eighth of the circle at the bottom of the inner base 4 (i.e., it is at a forty-five degree angle with the plane of the rotating rod 11).

[0041] In the above technical solution, when the electric telescopic rod 3 is lifted up and down, the electric telescopic rod 3 will drive the inner base 4 to move up and down, and the remaining movement of the inner base 4 will drive the outer base 5 to move up and down, and the up and down movement of the outer base 5 will drive the rotating rod 11 to rotate. Since the cylindrical end of the bottom of the rotating rod 11 is limited to the position of the fixed track 10, the rotating rod 11 can only slide along the direction of the fixed track 10, and the movement of the rotating rod 11 will drive the push rod 12 to move forward and backward, and the forward and backward movement of the push rod 12 will push the connecting rod 11 to move forward and backward. The rod 13 moves, and the connecting rod 13 will drive the inner base 4 to rotate clockwise or counterclockwise, and the clockwise or counterclockwise rotation of the inner base 4 will drive the upper clamping plate 9 and the dental needle to rotate clockwise or counterclockwise, so that when the electric-controlled telescopic rod 3 is lifted and lowered, the inner base 4 will also rotate, thereby causing the dental needle to change its angle during processing, so that when the diamond film is deposited, the height can be adjusted by adjusting the angle at the same time by the electric-controlled telescopic rod, so that the deposited film layer can be more uniform, thereby improving the overall work efficiency.

[0042] like Figure 3 , Figure 4 , Figure 6 and Figure 7 As shown, the clamping plate 9 is also provided with an auxiliary mechanism, which includes an upper torsion spring rod 14, and an upper torsion spring rod 14 and a lower torsion spring rod 15 are rotatably installed on the back of the clamping plate 9. The upper torsion spring rod 14 and the lower torsion spring rod 15 are elastically connected to the back of the clamping plate 9 by the elastic force of the torsion spring. The upper torsion spring rod 14 is tilted downward, and the lower torsion spring rod 15 is tilted upward, thereby forming an angle shape. An L-shaped rod 16 is inserted and slidably installed on the clamping rod 6, and a push plate 17 is fixedly installed on the outside of the L-shaped rod 16. The push plate 17 is slidably installed on the back of the clamping plate 9, and the push plate 17 is positioned Between the upper torsion spring rod 14 and the lower torsion spring rod 15, the sliding of the push plate 17 can squeeze the rotation of the upper torsion spring rod 14 and the lower torsion spring rod 15, the top of the upper torsion spring rod 14 is rotatably installed with a three-fold rod 18, the outside of the three-fold rod 18 is fixedly installed on the top of the auxiliary clamping block 19, the auxiliary clamping block 19 is slidably installed on the front outer wall of the clamping plate 9, the top of the clamping plate 9 is inserted into and slidably installed with a limit rod 20, the top of the limit rod 20 is fixedly installed on the three-fold rod 18, the limit rod 20 limits the three-fold rod 18 to only move up and down, and an empty groove 21 is opened at the bottom of the clamping plate 9.

[0043] In the above technical solution, when it is necessary to clamp dental needles of different specifications, there is no need to replace the clamping mechanism. The staff only needs to press the L-shaped rod 16 in the direction of the clamping rod 6. The movement of the L-shaped rod 16 will drive the push plate 17 to move in the direction of the clamping rod 6. The push plate 17 will squeeze the upper torsion spring rod 14 to rotate upward and the lower torsion spring rod 15 will be squeezed to rotate downward. When the upper torsion spring rod 14 is squeezed and rotated upward, the upper torsion spring rod 14 will drive the three-fold rod 18 to move upward. Due to the vertical restriction of the limit rod 20, the three-fold rod 18 can be moved upward. The rod 18 will drive the auxiliary clamping block 19 to move upward. After the clamping plate 9 clamps the dental needle, the L-shaped rod 16 is released, and the upper torsion spring rod 14 will rotate downward and return to the initial position due to the elastic force of the torsion spring. The upper torsion spring rod 14 will drive the three-fold rod 18 to move downward, and the three-fold rod 18 will drive the auxiliary clamping block 19 to move downward to clamp the dental needle. It can assist in clamping dental needles of different specifications, and then it can assist in clamping dental needles of different specifications, thereby improving the stability of the dental needle when it is clamped and ensuring the overall stability. The processing flow will not be offset. The setting of the empty groove 21 can provide space for the gas flow at the bottom of the dental needle, so as to avoid the difficulty of gas flow at the bottom of the dental needle during clamping, thereby avoiding affecting the deposition of the diamond film. At the same time, it has a heat dissipation effect and provides space for the flow of heat. In addition, the empty groove 21 can disperse the clamping force, so that the pressure on the dental needle during the clamping process is more uniform, thereby improving the stability and reliability of the clamping. When the lower torsion spring rod 15 is squeezed and rotated downward by the push plate 17, it will scrape the empty groove 21, and the empty groove 21 will be The film blocks and other materials attached near the back are scraped off to avoid affecting the smooth flow rate of the space in the empty groove 21. Finally, by providing an auxiliary mechanism, when clamping dental needles of different specifications, the rotation of the push plate 17 and the upper torsion spring rod 14 can drive the auxiliary clamping block 19 to perform auxiliary clamping operations on dental needles of different specifications, thereby improving the stability of the dental needles when clamped. At the same time, the empty groove 21 can provide space for the flow of gas at the bottom of the dental needle, thereby improving the overall processing efficiency and making the deposition of the diamond film more uniform.

[0044] In summary, by providing the electrically controlled telescopic rod 3, the clamping plate 9 and the clamping rod 6, the processing position of the dental needle can be adjusted by lifting and lowering, and a rotating mechanism is provided, so that the dental needle can also be rotated while being lifted and lowered, so that the deposition of the diamond film is more uniform, and an auxiliary mechanism is provided at the same time. The auxiliary mechanism can clamp dental needles of different specifications, improve the stability when clamping dental needles of different specifications, and thus improve the overall processing efficiency.

[0045] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An apparatus for preparing diamond and dental high-speed turning needles by MPCVD method, comprising a reaction chamber (1), characterized in that: Also includes: An upper shell (2) is detachably mounted on the top of the reaction chamber (1); a sealing strip is used to seal the connection between the bottom of the upper shell (2) and the reaction chamber (1); an electrically controlled telescopic rod (3) is fixedly mounted on the inner wall of the bottom of the reaction chamber (1); the top of the movable end of the electrically controlled telescopic rod (3) is configured to be in a round shape; an inner base (4) is rotatably sleeved on the top of the movable end of the electrically controlled telescopic rod (3); an outer base (5) is rotatably mounted on the outside of the inner base (4); A clamping rod (6) is slidably mounted on the top of the inner base (4), and a clamping plate (9) is fixedly mounted on one end of the clamping rod (6) close to the center of the inner base (4); An annular groove (7) is provided on the outer wall of the outer base (5), and a limit kit (8) is slidably installed on the annular groove (7). The limit kit (8) is composed of a slide plate with a bottom that can slide along the annular groove (7) and a sleeve with a top that can be sleeved on the outside of the clamping rod (6). The slide plate at the bottom of the limit kit (8) is provided with a protrusion and is located in a concave position inside the annular groove (7). An elastic element is provided between the outermost end of the clamping rod (6) and the inner wall of the sleeve of the limit kit (8); The reaction chamber (1) is also provided with a rotating mechanism, the rotating mechanism comprising a fixed track (10), the fixed track (10) being fixedly mounted on the bottom of the reaction chamber (1), and a gap being provided between the bottom of the fixed track (10) and the bottom of the reaction chamber (1); A rotating rod (11) is rotatably mounted at the bottom of the outer base (5); the bottom of the rotating rod (11) is arranged in a transverse cylindrical shape; the cylindrical end of the bottom of the rotating rod (11) is slidably mounted on the gap between the fixed track (10) and the bottom of the reaction chamber (1); A push rod (12) is rotatably mounted on the outside of the rotating rod (11); one end of the push rod (12) away from the rotating rod (11) is rotatably mounted on the bottom of a connecting rod (13); the top of the connecting rod (13) is fixedly mounted on the bottom of the inner base (4); and the initial position of the connecting rod (13) is located at one eighth of the circular bottom of the inner base (4).

2. The equipment for preparing diamond and dental high-speed turning needle by MPCVD method according to claim 1, characterized in that: The clamping plate (9) is also provided with an auxiliary mechanism, which comprises an upper torsion spring rod (14). The back of the clamping plate (9) is rotatably mounted with an upper torsion spring rod (14) and a lower torsion spring rod (15). The upper torsion spring rod (14) and the lower torsion spring rod (15) are elastically connected to each other by using the elastic force of the torsion spring to act on the back of the clamping plate (9).

3. The equipment for preparing diamond and dental high-speed turning needle by MPCVD method according to claim 2, characterized in that: The upper torsion spring rod (14) is arranged to tilt downward, the lower torsion spring rod (15) is arranged to tilt upward, an L-shaped rod (16) is inserted into and slidably mounted on the clamp rod (6), and a push plate (17) is fixedly mounted on the outside of the L-shaped rod (16).

4. The equipment for preparing diamond and dental high-speed turning needle by MPCVD method according to claim 3, characterized in that: The push plate (17) is slidably mounted on the back of the clamping plate (9). The push plate (17) is located between the upper torsion spring rod (14) and the lower torsion spring rod (15). A three-fold rod (18) is rotatably mounted on the top of the upper torsion spring rod (14). The three-fold rod (18) is externally fixedly mounted on the top of an auxiliary clamping block (19). The auxiliary clamping block (19) is slidably mounted on the front outer side wall of the clamping plate (9).

5. The equipment for preparing diamond and dental high-speed turning needle by MPCVD method according to claim 4, characterized in that: A limit rod (20) is inserted into and slidably mounted on the top of the clamping plate (9); the top of the limit rod (20) is fixedly mounted on the three-fold rod (18); and an empty slot (21) is provided at the bottom of the clamping plate (9).

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