Environment-friendly single-crystal corundum resin grinding wheel

The environmentally friendly monocrystalline corundum resin grinding wheel, designed with limiting components, solves the problem of material waste caused by replacing the entire wheel after wear, realizes a simple and environmentally friendly replacement process, and reduces usage costs and dust pollution.

CN224544280UActive Publication Date: 2026-07-24DALIAN FAR EAST SUPER PRECISION GRINDING TOOL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DALIAN FAR EAST SUPER PRECISION GRINDING TOOL CO LTD
Filing Date
2025-08-11
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Existing single-crystal corundum resin grinding wheels need to be replaced entirely when worn, resulting in material waste and increased operating costs.

Method used

Design an environmentally friendly single-crystal corundum resin grinding wheel. The resin grinding wheel can be disassembled and replaced through a limiting component, including a combination structure of a fixing block, a sliding column, a spring and a limiting groove, which simplifies the replacement process and saves materials.

Benefits of technology

It enables simple replacement of resin grinding wheels, saves materials, reduces operating costs, improves air quality in the working environment, and reduces dust pollution.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to single crystal corundum resin grinding wheel technical field, especially relates to a kind of environment-friendly single crystal corundum resin grinding wheel, including fixed base and resin grinding wheel, further include: several fixed blocks, several fixed blocks are fixedly installed in the inner wall of resin grinding wheel, resin grinding wheel is sleeved on fixed base, and several fixed blocks are inserted with fixed base and are matched;Limiting groove, limiting groove is opened in fixed base, and disc is rotatably installed in limiting groove, the circumference side wall of disc is fixedly installed with several arc blocks, and one end of disc is fixedly installed with fixed column, and one end of fixed column penetrates limiting groove and extends to outside;Several sliding columns, several sliding columns are slidably installed in limiting groove, and several sliding columns are respectively located in one side of several arc blocks, and the end of several sliding columns mutually close is fixedly installed with fixed disc, it is convenient to replace resin grinding wheel, and operation is simple and convenient, without using tool, material is saved simultaneously, reaches the purpose of environmental protection.
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Description

Technical Field

[0001] This utility model belongs to the technical field of single-crystal corundum resin grinding wheels, and particularly relates to an environmentally friendly single-crystal corundum resin grinding wheel. Background Technology

[0002] Single-crystal corundum resin grinding wheels are important grinding tools. The abrasive is single-crystal corundum, which has complete crystals, high hardness, good toughness, and strong self-sharpening properties. The binder is resin, which has good elasticity and adhesion. It has high grinding efficiency and can quickly remove material; excellent surface quality and reduced vibration and impact; excellent self-sharpening properties and strong adaptability. It is widely used in many fields such as tool manufacturing.

[0003] For example, Chinese patent CN208614584U discloses a high-efficiency resin grinding wheel, including an annular base, a mounting ring, a heat dissipation ring, an elastic ring, and a transition ring. The mounting ring is located at the center of the annular base. The transition ring, the elastic ring, and the heat dissipation ring are sequentially bonded from the mounting ring to the inner circular surface of the annular base. A helical hook groove is formed on the outer circumferential surface of the annular base. The helical hook groove includes a left helical hook groove and a right helical hook groove, which are intersected by each other. The axes of the left and right helical hook grooves are the same as the axis of the annular base and have the same helix angle α. This invention has good cooling and chip removal effects. The helical hook groove on the outer circumferential surface of the annular base improves the surface roughness of the high-efficiency resin grinding wheel, thereby improving grinding efficiency.

[0004] The aforementioned patent has the following problems:

[0005] This patent has some drawbacks in its use. For example, the aforementioned device inevitably experiences wear and tear during use, requiring disassembly and replacement. However, current practices often involve completely disassembling and replacing the entire grinding wheel, resulting in the waste of a large amount of still usable material and increasing operating costs. Therefore, we propose an environmentally friendly single-crystal corundum resin grinding wheel. Utility Model Content

[0006] The purpose of this invention is to provide an environmentally friendly single-crystal corundum resin grinding wheel to solve the problems mentioned in the background art.

[0007] In view of this, the present invention provides an environmentally friendly single-crystal corundum resin grinding wheel, including a fixed base and a resin grinding wheel, and further comprising:

[0008] A plurality of fixing blocks are fixedly installed on the inner wall of the resin grinding wheel, the resin grinding wheel is sleeved on the fixing seat, and the plurality of fixing blocks are inserted into the fixing seat.

[0009] A limiting groove is formed in a fixed base. A disc is rotatably installed in the limiting groove. Several arc-shaped blocks are fixedly installed on the circumferential sidewall of the disc. A fixed column is fixedly installed at one end of the disc. One end of the fixed column passes through the limiting groove and extends to the outside.

[0010] A plurality of sliding columns are slidably installed in a limiting groove, and the plurality of sliding columns are respectively located on one side of a plurality of arc-shaped blocks. A fixing plate is fixedly installed at the end of the plurality of sliding columns that are close to each other. A spring is sleeved on the plurality of sliding columns. The ends of the plurality of sliding columns that are far from each other pass through the limiting groove and extend into the plurality of fixing blocks respectively. The ends of the plurality of sliding columns that are far from each other are respectively inserted and engaged with the plurality of fixing blocks.

[0011] A limiting component is located within a fixed base and is used to limit the rotation of the fixed column.

[0012] In this technical solution, when the resin grinding wheel needs to be replaced, the limiting component allows the fixed column to rotate forward, causing the disc to rotate forward. The disc then causes several arc-shaped blocks to rotate forward. As the arc-shaped blocks rotate, under the rebound force of several springs, the fixed discs slide and move closer to each other. Each fixed disc then causes several sliding columns to slide and move closer to each other. When the ends of the sliding columns that are moving away from each other disengage from the fixed blocks, the user can remove the resin grinding wheel. The resin grinding wheel then causes the fixed blocks to detach from the fixed base. A new resin grinding wheel is then placed on the fixed base. Subsequently, the fixed column is rotated in the reverse direction, causing the disc to rotate in the reverse direction. The process involves a rotating disc driving several arc-shaped blocks to rotate in the opposite direction. These arc-shaped blocks then press against several fixed discs, causing them to slide and move away from each other. Simultaneously, the fixed discs drive several sliding columns to slide and move away from each other. At the same time, several springs are compressed and contracted. Finally, the ends of the sliding columns that move away from each other are inserted into several fixed blocks, thus fixing the position of the resin grinding wheel. The limiting components prevent the fixed columns from rotating forward, while the fixed discs press against the arc-shaped blocks, preventing them from rotating in the opposite direction. This process completes the replacement of the resin grinding wheel. The operation is simple and convenient, requires no tools, saves materials, and achieves environmental protection goals.

[0013] In the above technical solution, the limiting component further includes:

[0014] A ratchet is fixedly mounted on a fixed post. A pawl is rotatably mounted in the limiting groove and on one side of the ratchet. One end of the pawl extends between two adjacent teeth of the ratchet. A handle is fixedly mounted on one side of the pawl. One end of the handle passes through the limiting groove and extends to the outside. A torsion spring is sleeved on the handle. The two ends of the torsion spring are fixedly connected to the inner wall of the limiting groove and the pawl, respectively.

[0015] In this technical solution, rotating the handle forward causes the pawl to rotate forward, while the torsion spring twists. When one end of the pawl disengages from the two adjacent teeth of the ratchet, rotating the fixed post forward causes the ratchet and the disc to rotate forward. When the handle is released, the pawl rotates in the opposite direction under the torsional force of the torsion spring. Then, one end of the pawl inserts into the two adjacent teeth of the ratchet, preventing the ratchet from rotating forward.

[0016] In the above technical solution, furthermore, all of the aforementioned fixed discs are slidably connected to the limiting groove, and the fixed post, ratchet, pawl, and handle are rotatably connected to the limiting groove.

[0017] In this technical solution, it is ensured that the fixed plate can slide within the limiting groove, and that the fixed column, ratchet, pawl and handle can rotate within the limiting groove.

[0018] In the above technical solution, furthermore, the two ends of several springs are respectively welded to several fixed discs and the inner wall of the limiting groove.

[0019] In this technical solution, the stability of several springs during use is ensured.

[0020] In the above technical solution, further, the plurality of fixing blocks are distributed in a ring at equal intervals on the resin grinding wheel.

[0021] In this technical solution, the stability of the resin grinding wheel is ensured after it is fixed.

[0022] In the above technical solution, furthermore, a plurality of rubber pads are fixedly installed on the circumferential side wall of the fixing seat, and the plurality of rubber pads are in close contact with the inner wall of the resin grinding wheel.

[0023] In this technical solution, the stability of the resin grinding wheel is ensured after it is fixed.

[0024] In the above technical solution, the fixing base is further provided with several through holes.

[0025] In this technical solution, several through holes are provided to facilitate the installation of the mounting base.

[0026] The beneficial effects of this utility model are:

[0027] This environmentally friendly single-crystal corundum resin grinding wheel rotates in the forward direction, causing the fixed column to rotate and drive the disc to rotate in the forward direction. The disc then drives several arc-shaped blocks to rotate in the forward direction. As the arc-shaped blocks rotate, under the action of several spring rebound forces, several fixed discs slide and move closer to each other. The fixed discs then drive several sliding columns to slide and move closer to each other. When the ends of the sliding columns that are moving away from each other detach from the fixed blocks, the user can remove the resin grinding wheel. The resin grinding wheel can be replaced by performing the above reverse operation. The operation is simple and convenient, requires no tools, saves materials, and achieves the goal of environmental protection. Attached Figure Description

[0028] Figure 1 This is one of the overall structural schematic diagrams of this utility model;

[0029] Figure 2 This is the second schematic diagram of the overall structure of this utility model;

[0030] Figure 3 This is a schematic diagram of the fixed base area structure of this utility model;

[0031] Figure 4 This is one of the schematic diagrams of the cross-sectional structure of the fixing seat of this utility model;

[0032] Figure 5 This is the utility model Figure 4 Enlarged structural diagram at point A;

[0033] Figure 6 This is a schematic cross-sectional view of the fixing base of this utility model. Figure 2 ;

[0034] Figure 7 This is the utility model Figure 6 Enlarged structural diagram at point A in the middle.

[0035] The markings in the diagram are as follows:

[0036] 1. Fixed base; 2. Resin grinding wheel; 3. Fixed block; 4. Limiting groove; 5. Disc; 6. Arc block; 7. Sliding column; 8. Fixed disc; 9. Spring; 10. Through hole; 11. Fixed column; 12. Ratchet; 13. Pad; 14. Handle; 15. Torsion spring; 16. Rubber pad. Detailed Implementation

[0037] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0038] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items, and therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0039] It should be noted that the terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and are not limited in number; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0040] It should be noted that in the description of this application, the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0041] It should be noted that, in this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples. Example

[0042] Please see Figure 1 - Figure 7 As shown, this embodiment provides an environmentally friendly single-crystal corundum resin grinding wheel, including a fixed base 1 and a resin grinding wheel 2, and further including:

[0043] Several fixing blocks 3 are fixedly installed on the inner wall of the resin grinding wheel 2. The resin grinding wheel 2 is sleeved on the fixing seat 1, and the fixing blocks 3 are inserted into the fixing seat 1.

[0044] The limiting groove 4 is opened in the fixed base 1. A disc 5 is rotatably installed in the limiting groove 4. Several arc-shaped blocks 6 are fixedly installed on the circumferential side wall of the disc 5. A fixed post 11 is fixedly installed at one end of the disc 5. One end of the fixed post 11 passes through the limiting groove 4 and extends to the outside.

[0045] A plurality of sliding posts 7 are slidably installed in the limiting groove 4, and the plurality of sliding posts 7 are respectively located on one side of a plurality of arc-shaped blocks 6. The ends of the plurality of sliding posts 7 that are close to each other are fixedly installed with a fixing plate 8. A spring 9 is sleeved on the plurality of sliding posts 7. The ends of the plurality of sliding posts 7 that are far from each other pass through the limiting groove 4 and extend into the plurality of fixing blocks 3 respectively. The ends of the plurality of sliding posts 7 that are far from each other are respectively inserted and engaged with the plurality of fixing blocks 3.

[0046] A limiting component is located inside the fixed base 1 and is used to limit the rotation of the fixed column 11.

[0047] When the resin grinding wheel 2 needs to be replaced, the fixed column 11 can be rotated forward by the limiting component, which in turn drives the disc 5 to rotate forward. The disc 5 drives several arc-shaped blocks 6 to rotate forward. When the arc-shaped blocks 6 rotate, under the rebound force of several springs 9, several fixed discs 8 slide and move closer to each other. The fixed discs 8 respectively drive several sliding columns 7 to slide and move closer to each other. When the ends of the sliding columns 7 that are far apart from each other are separated from the fixed blocks 3, the user can take out the resin grinding wheel 2. The resin grinding wheel 2 drives the fixed blocks 3 to detach from the fixed seat 1. Then, the new resin grinding wheel 2 is placed on the fixed seat 1. Then, the fixed column 11 is rotated in the reverse direction, which drives the disc 5 to rotate in the reverse direction. The rotating disc 5 causes several arc-shaped blocks 6 to rotate in the opposite direction. The arc-shaped blocks 6 press several fixed discs 8 to slide and move away from each other. The fixed discs 8 cause several sliding columns 7 to slide and move away from each other. At the same time, several springs 9 are compressed and contracted. Finally, the ends of the sliding columns 7 that move away from each other are inserted into several fixed blocks 3, which can fix the position of the resin grinding wheel 2. Through the set limiting components, the fixed columns 11 cannot rotate in the forward direction. At the same time, the fixed discs 8 press several arc-shaped blocks 6, so that the arc-shaped blocks 6 can no longer continue to rotate in the reverse direction. Finally, the replacement of the resin grinding wheel 2 is completed. The operation is simple and convenient, requires no tools, saves materials, and achieves the purpose of environmental protection.

[0048] In this embodiment, the limiting component includes:

[0049] A ratchet 12 is fixedly mounted on a fixed post 11. A pawl 13 is rotatably mounted in a limiting groove 4 on one side of the ratchet 12. One end of the pawl 13 extends between two adjacent teeth of the ratchet 12. A handle 14 is fixedly mounted on one side of the pawl 13. One end of the handle 14 passes through the limiting groove 4 and extends to the outside. A torsion spring 15 is sleeved on the handle 14. The two ends of the torsion spring 15 are fixedly connected to the inner wall of the limiting groove 4 and the pawl 13, respectively.

[0050] In this process, rotating the handle 14 in the forward direction causes the pawl 13 to rotate in the forward direction, while the torsion spring 15 is twisted. When one end of the pawl 13 disengages from the two adjacent teeth of the ratchet 12, rotating the fixed post 11 in the forward direction causes the ratchet 12 and the disc 5 to rotate in the forward direction. When the handle 14 is released, the pawl 13 rotates in the reverse direction under the torsional force of the torsion spring 15. Then, one end of the pawl 13 inserts into the two adjacent teeth of the ratchet 12, preventing the ratchet 12 from rotating in the forward direction. Example

[0051] This embodiment provides an environmentally friendly single-crystal corundum resin grinding wheel, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0052] In this embodiment, several fixed discs 8 are slidably connected to the limiting groove 4, and the fixed column 11, ratchet 12, pawl 13 and handle 14 are rotatably connected to the limiting groove 4.

[0053] In this way, it is ensured that the fixed plate 8 can slide within the limiting groove 4, and that the fixed column 11, ratchet 12, pawl 13 and handle 14 can rotate within the limiting groove 4. Example

[0054] This embodiment provides an environmentally friendly single-crystal corundum resin grinding wheel, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0055] In this embodiment, the two ends of several springs 9 are respectively welded to several fixed disks 8 and the inner wall of the limiting groove 4.

[0056] Among them, several springs 9 are designed to ensure stability during use. Example

[0057] This embodiment provides an environmentally friendly single-crystal corundum resin grinding wheel, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0058] In this embodiment, several fixing blocks 3 are distributed in a ring at equal intervals on the resin grinding wheel 2.

[0059] Among these measures, ensuring the stability of the resin grinding wheel 2 after it has been fixed is crucial. Example

[0060] This embodiment provides an environmentally friendly single-crystal corundum resin grinding wheel, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0061] In this embodiment, a plurality of rubber pads 16 are fixedly installed on the circumferential sidewall of the fixed base 1, and the plurality of rubber pads 16 are in close contact with the inner wall of the resin grinding wheel 2.

[0062] Among these measures, ensuring the stability of the resin grinding wheel 2 after it has been fixed is crucial. Example

[0063] This embodiment provides an environmentally friendly single-crystal corundum resin grinding wheel, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0064] In this embodiment, the fixing base 1 has several through holes 10.

[0065] The mounting base 1 is conveniently installed through several through holes 10.

[0066] It is worth noting that the resin grinding wheel 2 is made of monocrystalline corundum material. When the resin grinding wheel 2 made of monocrystalline corundum material is used, the resin binder can better encapsulate the abrasive particles, which can reduce dust generation, improve the air quality of the working environment, reduce the harm of operators inhaling dust, and also reduce dust pollution to the surrounding environment, thus achieving the purpose of environmental protection.

[0067] Working principle: When the resin grinding wheel 2 needs to be replaced, first rotate the handle 14 clockwise, which drives the pawl 13 to rotate clockwise. At the same time, the torsion spring 15 is twisted. When one end of the pawl 13 disengages from the two adjacent teeth of the ratchet 12, rotate the fixing post 11 clockwise, which drives the ratchet 12 and the disc 5 to rotate clockwise. The disc 5 drives several arc-shaped blocks 6 to rotate clockwise. When the arc-shaped blocks 6 rotate, under the rebound force of several springs 9, several fixing discs 8 slide and move closer to each other. The fixing discs 8 respectively drive several sliding posts 7 to slide and move closer to each other. When the ends of the sliding posts 7 that are moving away from each other disengage from the fixing blocks 3, the user can remove the resin grinding wheel 2. The resin grinding wheel 2 drives the fixing blocks 3 to disengage from the fixing seat 1. Then, put the new resin grinding wheel 2 into the fixing seat 1. Then rotate the fixing post 11 counterclockwise, which drives the ratchet 12 to rotate clockwise. 2. The disc 5 rotates in the opposite direction, causing several arc-shaped blocks 6 to rotate in the opposite direction. The arc-shaped blocks 6 press several fixed discs 8 to slide and move away from each other. The fixed discs 8 cause several sliding columns 7 to slide and move away from each other. At the same time, several springs 9 are compressed and contracted. Finally, the ends of several sliding columns 7 that move away from each other are inserted into several fixed blocks 3 to fix the position of the resin grinding wheel 2. Then, the handle 14 is released. Under the torsional force of the torsion spring 15, the pawl 13 rotates in the opposite direction. Then, one end of the pawl 13 is inserted between two adjacent teeth of the ratchet 12, so that the ratchet 12 cannot rotate in the forward direction. At the same time, several fixed discs 8 press several arc-shaped blocks 6, so that the arc-shaped blocks 6 can no longer continue to rotate in the opposite direction. Finally, the replacement of the resin grinding wheel 2 is completed. The operation is simple and convenient, requires no tools, saves materials, and achieves the purpose of environmental protection.

[0068] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. An environmentally friendly single-crystal corundum resin grinding wheel, comprising a fixed base (1) and a resin grinding wheel (2), characterized in that, Also includes: A plurality of fixing blocks (3) are fixedly installed on the inner wall of the resin grinding wheel (2), the resin grinding wheel (2) is sleeved on the fixing seat (1), and the plurality of fixing blocks (3) are inserted into the fixing seat (1). A limiting groove (4) is formed in a fixed base (1). A disc (5) is rotatably installed in the limiting groove (4). Several arc-shaped blocks (6) are fixedly installed on the circumferential sidewall of the disc (5). A fixing column (11) is fixedly installed at one end of the disc (5). One end of the fixing column (11) passes through the limiting groove (4) and extends to the outside. A plurality of sliding columns (7) are slidably installed in a limiting groove (4), and the plurality of sliding columns (7) are respectively located on one side of a plurality of arc blocks (6). A fixing plate (8) is fixedly installed at the end of the plurality of sliding columns (7) that is close to each other. A spring (9) is sleeved on the plurality of sliding columns (7). The ends of the plurality of sliding columns (7) that are far apart from each other pass through the limiting groove (4) and extend into the plurality of fixing blocks (3). The ends of the plurality of sliding columns (7) that are far apart from each other are respectively inserted into the plurality of fixing blocks (3). A limiting component is located inside the fixed base (1) and is used to limit the rotation of the fixed column (11).

2. The environmentally friendly single-crystal corundum resin grinding wheel according to claim 1, characterized in that, The limiting component includes: A ratchet (12) is fixedly mounted on a fixed post (11). A pawl (13) is rotatably mounted in the limiting groove (4) and on one side of the ratchet (12). One end of the pawl (13) extends to the space between two adjacent teeth of the ratchet (12). A handle (14) is fixedly mounted on one side of the pawl (13). One end of the handle (14) passes through the limiting groove (4) and extends to the outside. A torsion spring (15) is sleeved on the handle (14). The two ends of the torsion spring (15) are fixedly connected to the inner wall of the limiting groove (4) and the pawl (13), respectively.

3. The environmentally friendly single-crystal corundum resin grinding wheel according to claim 2, characterized in that, Several of the fixed discs (8) are slidably connected to the limiting groove (4), and the fixed column (11), ratchet (12), pawl (13) and handle (14) are rotatably connected to the limiting groove (4).

4. The environmentally friendly single-crystal corundum resin grinding wheel according to claim 1, characterized in that, The two ends of several springs (9) are respectively welded to the inner walls of several fixed discs (8) and limiting grooves (4).

5. The environmentally friendly single-crystal corundum resin grinding wheel according to claim 1, characterized in that, Several of the fixing blocks (3) are distributed in a ring at equal intervals on the resin grinding wheel (2).

6. The environmentally friendly single-crystal corundum resin grinding wheel according to claim 1, characterized in that, A number of rubber pads (16) are fixedly installed on the circumferential side wall of the fixed seat (1), and the rubber pads (16) are in close contact with the inner wall of the resin grinding wheel (2).

7. The environmentally friendly single-crystal corundum resin grinding wheel according to claim 1, characterized in that, The fixing base (1) has several through holes (10).