An apparatus for grinding the end face of a silicon carbide crystal

Abstract

The utility model discloses a device of grinding silicon carbide crystal end face relates to silicon carbide crystal end face grinding technical field, including electric telescopic link, its installation in the upper end of bottom support, the upper end of electric telescopic link is equipped with top support, and the top support is fixedly connected with electric telescopic link, and this device makes its rotation center and the rotation center line of polishing wheel not coincide through the installation eccentric connection net board support, can make the polishing wheel in high -speed rotation, and the eccentric connection net board support rotates under the action of position adjusting motor, makes the eccentric rotation of the article limiting plate of eccentric connection net board support upper end and silicon carbide crystal, and further makes silicon carbide crystal to have contact with each part of polishing wheel lower end, and further avoid the wear groove of polishing wheel lower end to appear, make polishing wheel lower end can use comprehensively, avoid causing the waste of polishing wheel, make the longer service life of polishing wheel, reduce the polishing wheel replacement frequency, reduce the polishing cost of silicon carbide crystal.

Description

Technical Field

[0001] This utility model relates to the field of silicon carbide crystal end face grinding technology, specifically to a device for grinding the end face of silicon carbide crystals. Background Technology

[0002] Silicon carbide (SiC) is a unique semiconductor material with excellent physical properties. Its single-crystal structure, unique performance advantages, wide range of applications, and broad development prospects have garnered significant attention. The performance advantages of SiC mainly include a wide bandgap, high electron mobility, strong thermal stability, good chemical stability, and excellent thermal conductivity, making its development prospects very promising. With continuous technological advancements, the production cost of SiC is gradually decreasing, enabling its wider application in various fields. Furthermore, its applications will be more extensive in emerging fields such as new energy vehicles, wind power, and solar power generation. Simultaneously, with the increasing performance requirements of power electronic devices, SiC's superior performance gives it enormous potential for application in these areas. In summary, as an excellent semiconductor material, silicon carbide will have broader and deeper applications in the future. During the production of silicon carbide, the end faces of the crystals need to be polished to ensure that the crystals meet production requirements.

[0003] However, existing grinding devices typically require operators to clamp and fix the silicon carbide crystal before using a high-speed rotating grinding structure to grind its end face. This prolonged friction between the grinding structure and the silicon carbide crystal causes gradual wear, resulting in wear grooves on the outside of the grinding mechanism. As the grinding mechanism ages, these wear grooves deepen until the entire mechanism is scrapped. Meanwhile, the portion of the grinding structure that rubs against the silicon carbide crystal remains unchanged, leading to wasted resources and increased costs for grinding the silicon carbide crystal end face. Therefore, this method does not meet current requirements. To address this, we propose a device for grinding the end face of silicon carbide crystals. Utility Model Content

[0004] The purpose of this invention is to provide a device for grinding the end face of silicon carbide crystals, in order to solve the problem mentioned in the background art. In this method, the grinding device typically requires a worker to clamp and fix the silicon carbide crystal before using a high-speed rotating grinding structure to grind its end face. The grinding structure in the device rubs against the silicon carbide crystal over a long period, causing it to gradually wear down and form wear grooves on its exterior. As the grinding mechanism is used for longer periods, the depth of these wear grooves gradually increases until the grinding mechanism is scrapped. Meanwhile, the part of the grinding structure that rubs against the silicon carbide crystal remains unchanged, resulting in wasted resources and increased costs for grinding the end face of silicon carbide crystals.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a device for grinding the end face of a silicon carbide crystal, comprising a bottom support: An electric telescopic rod is installed on the upper end of the bottom bracket. A top bracket is installed on the upper end of the electric telescopic rod. The top bracket is fixedly connected to the electric telescopic rod. A grinding bracket is installed on the lower end of the top bracket. The grinding bracket is rotatably connected to the top bracket via a bearing. A grinding wheel is installed on the lower end of the grinding bracket. A support rod is installed on the upper end of the bottom bracket, and the bottom bracket is fixedly connected to the support rod. A dust-blocking bracket is installed on the upper end of the support rod. A motor mounting plate is installed inside the dust-blocking bracket, and the motor mounting plate is fixedly connected to the dust-blocking bracket. An eccentric connecting mesh plate bracket is installed on the upper end of the motor mounting plate. A placement limiting plate is installed on the upper end of the eccentric connecting mesh plate bracket, and the placement limiting plate is fixedly connected to the eccentric connecting mesh plate bracket. The rotation center line of the eccentric connecting mesh plate bracket does not coincide with the rotation center line of the grinding wheel.

[0006] Preferably, a rubber electrostatic dust collector is installed at the lower end of the top bracket, and the rubber electrostatic dust collector is fixedly connected to the top bracket.

[0007] Preferably, a grinding motor is installed at the upper end of the top bracket, the grinding motor is connected to the top bracket by screws, and the grinding motor is connected to the grinding bracket by a coupling.

[0008] Preferably, an adjusting motor is installed at the lower end of the motor mounting plate, the adjusting motor is connected to the motor mounting plate by screws, and the adjusting motor is connected to the eccentric connecting mesh plate bracket by a coupling.

[0009] Preferably, the upper end of the storage limiting plate is provided with a storage slot, and there are several storage slots.

[0010] Preferably, the bottom bracket is fixedly connected to the electric telescopic rod, the grinding wheel is fixedly connected to the grinding bracket, the dust-blocking bracket is fixedly connected to the support rod, and the eccentric connecting mesh plate bracket is connected to the motor mounting plate through bearings.

[0011] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model, by installing an eccentric connecting mesh plate bracket so that its rotation center does not coincide with the rotation center line of the grinding wheel, allows the eccentric connecting mesh plate bracket to rotate under the action of the adjusting motor when the grinding wheel rotates at high speed. This enables the placement limiting plate and silicon carbide crystal at the upper end of the eccentric connecting mesh plate bracket to rotate eccentrically, thereby ensuring that the silicon carbide crystal can contact all parts of the lower end of the grinding wheel. This avoids the formation of wear grooves at the lower end of the grinding wheel, allowing the lower end of the grinding wheel to be fully utilized, avoiding waste of the grinding wheel, extending the service life of the grinding wheel, reducing the frequency of grinding wheel replacement, and reducing the grinding cost of silicon carbide crystals. 2. This utility model can drive the grinding bracket to move longitudinally by installing an electric telescopic rod, which makes it easier for workers to install and disassemble silicon carbide crystals, making it easier for workers to use the device. At the same time, it makes it easier for workers to control the grinding depth of the device, enhancing the practicality of the device. Installing rubber electrostatic dust collection parts and dust blocking brackets can block dust and prevent a large amount of dust from splashing into the outside world, avoiding environmental pollution and making the device more user-friendly. Attached Figure Description

[0012] Figure 1 This is a three-dimensional perspective view of a device for grinding the end face of a silicon carbide crystal according to the present invention; Figure 2 This is a schematic diagram of the internal structure of a device for grinding the end face of a silicon carbide crystal according to the present invention. Figure 3 This is a diagram showing the position distribution of the storage slots on the upper end of the storage limiting plate of this utility model; Figure 4 This diagram shows the connection relationship between the motor mounting plate, the dustproof bracket, and the adjusting motor of this utility model.

[0013] In the diagram: 1. Bottom bracket; 2. Electric telescopic rod; 3. Top bracket; 4. Grinding motor; 5. Rubber electrostatic dust collection component; 6. Support rod; 7. Dust-blocking bracket; 8. Adjustable motor; 9. Motor mounting plate; 10. Eccentric connecting mesh plate bracket; 11. Storage limiting plate; 12. Grinding bracket; 13. Grinding wheel; 14. Storage slot. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0015] Please see Figure 1-4 One embodiment of this utility model provides: a device for grinding the end face of a silicon carbide crystal, comprising a bottom support 1: The electric telescopic rod 2 is installed on the upper end of the bottom bracket 1. The installation of the electric telescopic rod 2 can drive the grinding bracket 12 to move longitudinally, which facilitates the installation and removal of silicon carbide crystals by the staff, makes it easier for the staff to use the device, and also makes it easier for the staff to control the grinding depth of the device, thus enhancing the practicality of the device. The upper end of the electric telescopic rod 2 is equipped with a top bracket 3, which is fixedly connected to the electric telescopic rod 2. The lower end of the top bracket 3 is equipped with a grinding bracket 12, which is rotatably connected to the top bracket 3 through a bearing. The lower end of the grinding bracket 12 is equipped with a grinding wheel 13. Support rod 6 is installed on the upper end of bottom bracket 1. Bottom bracket 1 is fixedly connected to support rod 6. Dust-blocking bracket 7 is installed on the upper end of support rod 6. Motor mounting plate 9 is installed inside dust-blocking bracket 7 and is fixedly connected to dust-blocking bracket 7. Eccentric connecting mesh plate bracket 10 is installed on the upper end of motor mounting plate 9. The eccentric connecting mesh plate bracket 10 is installed so that its rotation center does not coincide with the rotation center line of grinding wheel 13. This allows the eccentric connecting mesh plate bracket 10 to rotate under the action of adjusting motor 8 when grinding wheel 13 rotates at high speed, so that the placement limiting plate 11 on the upper end of eccentric connecting mesh plate bracket 10 can be positioned. The silicon carbide crystal can rotate eccentrically, allowing it to contact all parts of the lower end of the grinding wheel 13. This avoids wear grooves on the lower end of the grinding wheel 13, ensuring full utilization of the lower end and preventing waste. This extends the lifespan of the grinding wheel 13, reduces its replacement frequency, and lowers the grinding cost of the silicon carbide crystal. A placement limiting plate 11 is installed on the upper end of the eccentric connecting mesh plate bracket 10. The placement limiting plate 11 is fixedly connected to the eccentric connecting mesh plate bracket 10, and the rotation center line of the eccentric connecting mesh plate bracket 10 does not coincide with the rotation center line of the grinding wheel 13.

[0016] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4A rubber electrostatic dust collector 5 is installed at the lower end of the top bracket 3. The rubber electrostatic dust collector 5 is fixedly connected to the top bracket 3. The installation of the rubber electrostatic dust collector 5 and the dust blocking bracket 7 can block dust, prevent a large amount of dust from splashing to the outside, avoid environmental pollution, and make the device more user-friendly. A grinding motor 4 is installed at the upper end of the top bracket 3. The grinding motor 4 is connected to the top bracket 3 by screws. The grinding motor 4 is connected to the grinding bracket 12 by a coupling. An adjusting motor 8 is installed at the lower end of the motor mounting plate 9. The adjusting motor 8 is connected to the motor mounting plate 9 by screws. The adjusting motor 8 is connected to the eccentric connecting mesh plate bracket 10 by a coupling. A storage slot 14 is provided at the upper end of the storage limiting plate 11. Several storage slots 14 are provided. The bottom bracket 1 is fixedly connected to the electric telescopic rod 2. The grinding wheel 13 is fixedly connected to the grinding bracket 12. The dust blocking bracket 7 is fixedly connected to the support rod 6. The eccentric connecting mesh plate bracket 10 is connected to the motor mounting plate 9 by bearings.

[0017] Working principle: During use, the operator presses the silicon carbide crystal into the storage slot 14. Then, the electric telescopic rod 2 retracts, and simultaneously, the grinding motor 4 drives the grinding bracket 12 and the grinding wheel 13 to rotate at high speed, causing the grinding wheel 13 to contact the end face of the silicon carbide crystal, thereby grinding the end face of the silicon carbide crystal. At this time, the adjustment motor 8 drives the eccentric connecting mesh plate bracket 10 to rotate. Since the rotation center of the eccentric connecting mesh plate bracket 10 does not coincide with the rotation center line of the grinding wheel 13, the eccentric connecting mesh plate bracket 10 rotates under the action of the adjustment motor 8 when the grinding wheel 13 rotates at high speed. This allows the storage limiting plate 11 at the upper end of the eccentric connecting mesh plate bracket 10 and the silicon carbide crystal to rotate eccentrically, thereby allowing the silicon carbide crystal to grind. The device has contact with all parts of the lower end of the grinding wheel 13, thus avoiding wear grooves on the lower end of the grinding wheel 13, allowing the lower end of the grinding wheel 13 to be fully utilized, avoiding waste of the grinding wheel 13, extending the service life of the grinding wheel 13, reducing the frequency of grinding wheel 13 replacement, and reducing the grinding cost of silicon carbide crystals. The electric telescopic rod 2 installed in this device can drive the grinding bracket 12 to move longitudinally, which facilitates the installation and removal of silicon carbide crystals by the staff, making the device easier for the staff to use. At the same time, it is convenient for the staff to control the grinding depth of the device, enhancing the practicality of the device. The installation of rubber electrostatic dust suction component 5 and dust blocking bracket 7 can block dust and prevent a large amount of dust from splashing into the outside world, avoiding environmental pollution, making the device more user-friendly.

[0018] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An apparatus for grinding the end face of a silicon carbide crystal, comprising a bottom support (1), characterized in that: An electric telescopic rod (2) is installed on the upper end of the bottom bracket (1). A top bracket (3) is installed on the upper end of the electric telescopic rod (2). The top bracket (3) is fixedly connected to the electric telescopic rod (2). A grinding bracket (12) is installed on the lower end of the top bracket (3). The grinding bracket (12) and the top bracket (3) are rotatably connected by a bearing. A grinding wheel (13) is installed on the lower end of the grinding bracket (12). A support rod (6) is installed on the upper end of the bottom bracket (1). The bottom bracket (1) is fixedly connected to the support rod (6). A dustproof bracket (7) is installed on the upper end of the support rod (6). A motor mounting plate (9) is installed inside the dustproof bracket (7). The motor mounting plate (9) is fixedly connected to the dustproof bracket (7). An eccentric connecting mesh plate bracket (10) is installed on the upper end of the motor mounting plate (9). A storage limiting plate (11) is installed on the upper end of the eccentric connecting mesh plate bracket (10). The storage limiting plate (11) is fixedly connected to the eccentric connecting mesh plate bracket (10). The rotation center line of the eccentric connecting mesh plate bracket (10) does not coincide with the rotation center line of the grinding wheel (13).

2. The apparatus for grinding the end face of a silicon carbide crystal according to claim 1, characterized in that: A rubber electrostatic dust collector (5) is installed at the lower end of the top bracket (3), and the rubber electrostatic dust collector (5) is fixedly connected to the top bracket (3).

3. The apparatus for grinding the end face of a silicon carbide crystal according to claim 1, characterized in that: A grinding motor (4) is installed at the upper end of the top bracket (3). The grinding motor (4) is connected to the top bracket (3) by screws, and the grinding motor (4) is connected to the grinding bracket (12) by a coupling.

4. The apparatus for grinding the end face of a silicon carbide crystal according to claim 1, characterized in that: The lower end of the motor mounting plate (9) is equipped with a positioning motor (8), which is connected to the motor mounting plate (9) by screws. The positioning motor (8) is connected to the eccentric connecting mesh plate bracket (10) by a coupling.

5. The apparatus for grinding the end face of a silicon carbide crystal according to claim 1, characterized in that: The upper end of the storage limiting plate (11) is provided with a storage slot (14), and there are several storage slots (14).

6. The apparatus for grinding the end face of a silicon carbide crystal according to claim 1, characterized in that: The bottom bracket (1) is fixedly connected to the electric telescopic rod (2), the grinding wheel (13) is fixedly connected to the grinding bracket (12), the dust blocking bracket (7) is fixedly connected to the support rod (6), and the eccentric connecting mesh plate bracket (10) is connected to the motor mounting plate (9) through a bearing.

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