Resin composite high-performance precision grinding wheel

Abstract

The utility model relates to abrasive disc technical field discloses a resin composite high performance precision abrasive disc, including abrasive disc body, the abrasive disc body includes base body, binder layer, abrasive layer, the base body is located abrasive layer inboard, the binder layer is located between base body and abrasive layer, the base body inside is equipped with fixed establishment, the fixed establishment includes drive board, the cavity is seted up in the base body inside, the drive board rotatory installation is in the cavity, a plurality of rail grooves are symmetrically seted up in drive board one side, be equipped with drive column in the rail groove, drive column one end is connected with the plug rod in drive board one side, and plug rod one end extends to the inboard of base body, the drive board is away from drive column one side and is fixedly connected through the torsional spring and the cavity one end inner wall, the utility model discloses the fixed establishment realizes the quick dismounting of abrasive disc and avoids the centrifugal force influence fixed, utilizes the elastic resin layer to reduce workpiece flutter scratch of buffering vibration simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of grinding wheel technology, and in particular to a resin composite high-performance precision grinding wheel. Background Technology

[0002] In modern industrial production, especially in fields such as electronics, aerospace, and precision machinery manufacturing, extremely stringent requirements are placed on the machining accuracy and surface quality of parts. Resin composite high-performance precision grinding wheels have been widely used in various precision grinding scenarios due to their excellent self-sharpening properties, good grinding accuracy, and low damage to the workpiece surface. They can effectively meet the high-precision grinding needs of hard and brittle materials such as ceramics, optical glass, and semiconductor crystals, as well as new composite materials, and have become one of the key grinding tools driving the development of modern manufacturing towards high precision and high performance. However, traditional resin composite grinding wheels have significant shortcomings in the installation and replacement process, which seriously restricts the improvement of production efficiency. Taking the common multi-bolt fixing method as an example, during installation, operators need to accurately align the bolt holes and tighten them one by one. During disassembly, multiple bolts need to be loosened in sequence. The whole process is cumbersome, time-consuming and labor-intensive. It not only requires a high level of technical proficiency from the operators, but also leads to prolonged equipment downtime due to the complexity of the operation, making it difficult to adapt to the modern efficient and continuous production rhythm. Utility Model Content

[0003] In view of the fact that the existing traditional resin composite grinding wheels are complicated, time-consuming and labor-intensive to install and replace, requiring high skill levels from operators and resulting in prolonged equipment downtime, and are difficult to adapt to the modern efficient and continuous production rhythm, this utility model is proposed.

[0004] To solve the above technical problems, this utility model provides the following technical solution: a resin composite high-performance precision grinding wheel, including a grinding wheel body, the grinding wheel body including a matrix, a bonding layer and an abrasive layer, the matrix being located inside the abrasive layer, the bonding layer being located between the matrix and the abrasive layer, and a fixing mechanism being provided inside the matrix; The fixing mechanism includes a drive plate. A cavity is opened inside the base. The drive plate is rotatably installed in the cavity. A number of rail grooves are symmetrically opened on one side of the drive plate. A drive column is provided in the rail groove. One end of the drive column is connected to a plug rod on one side of the drive plate, and one end of the plug rod extends into the inner side of the base. The side of the drive plate away from the drive column is fixedly connected to the inner wall of one end of the cavity by a torsion spring.

[0005] As a preferred embodiment, the fixing mechanism further includes a support column, which is fixedly installed on one side of the drive plate inside the cavity and located between adjacent insert rods. A gear is sleeved on the outer wall of the support column, and several tooth grooves that mesh with the gear are opened on the side wall of the drive plate. A limiting post is connected to the end of the gear away from the support column, and one end of the limiting post extends into a limiting groove opened at one end of the base. A connecting block is rotatably connected to one end of the limiting post in the limiting groove. A return spring is provided inside the limiting post, and a stop block is connected to one end of the return spring. The stop block is rotatably connected to one end of the support column. Each insert rod has an inclined surface on its inner side.

[0006] As a preferred embodiment, the limiting post is a hexagonal column structure, the thickness of the gear is greater than the thickness of the drive plate, and the drive plate is a ring structure.

[0007] As a preferred embodiment, the track groove is arc-shaped, and the plurality of the insert rods are arranged in a circumferentially equidistant array.

[0008] As a preferred embodiment, the limiting post has a hexagonal groove at one end within the limiting groove, and the connecting block is annular with an inner diameter larger than the maximum inner diameter of the hexagonal groove.

[0009] As a preferred embodiment, an elastic resin layer is fixedly installed on the inner wall of the matrix, and the inner wall of the elastic resin layer matrix is ​​adapted to the keyway combination wall.

[0010] Compared with the prior art, the present invention has at least the following beneficial effects: 1. The fixing mechanism of this utility model pushes the connecting block to move the limiting post out of the limiting groove. After being sleeved on the drive shaft of the equipment, it uses compression to move the insertion rod outward. When it corresponds to the insertion hole, the insertion rod is reset and fixed under the action of the torsion spring. The limiting post is reset and limited to prevent loosening at the same time. When disassembling, the insertion rod can be removed by operating a wrench, which is convenient for disassembly and assembly.

[0011] 2. This utility model uses an elastic resin layer to buffer and absorb grinding vibrations, reducing chatter and scratches on the workpiece surface. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a partial cross-sectional structural diagram of the present invention; Figure 3 This is a schematic diagram of the structure between the drive plate, the insert rod, and the gear of this utility model; Figure 4 For the present utility model Figure 2 A magnified structural diagram of A in the middle.

[0013] Explanation of reference numerals in the attached figures: 1. Grinding wheel body; 2. Matrix; 3. Bonding layer; 4. Abrasive layer; 5. Keyway; 6. Elastic resin layer; 7. Cavity; 8. Drive plate; 9. Rail groove; 10. Insert rod; 11. Drive column; 12. Support column; 13. Gear; 14. Limiting column; 15. Connecting block; 16. Limiting groove; 17. Return spring; 18. Stop block; 19. Hexagonal groove; 20. Torsion spring. Detailed Implementation

[0014] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0015] Reference Figure 1 - Figure 4 As shown, a resin composite high-performance precision grinding wheel is provided, including a grinding wheel body 1. The grinding wheel body 1 includes a matrix 2, a bonding layer 3, and an abrasive layer 4. The matrix 2 is located inside the abrasive layer 4, and the bonding layer 3 is located between the matrix 2 and the abrasive layer 4. A fixing mechanism is provided inside the matrix 2. This provides a structural basis for the quick installation and fixing of the grinding wheel, solving the problem of cumbersome traditional installation methods. The fixing mechanism includes a drive plate 8. A cavity 7 is provided inside the base 2. The drive plate 8 is rotatably installed in the cavity 7. Several rail grooves 9 are symmetrically provided on one side of the drive plate 8. A drive column 11 is provided in the rail groove 9. One end of the drive column 11 is connected to a plug rod 10 on one side of the drive plate 8, and one end of the plug rod 10 extends to the inside of the base 2. The side of the drive plate 8 away from the drive column 11 is fixedly connected to the inner wall of one end of the cavity 7 by a torsion spring 20. Through the cooperation of the drive plate 8, the rail grooves 9, the drive column 11 and the torsion spring 20, the plug rod 10 is automatically reset and locked, simplifying the installation operation steps.

[0016] In this example, the fixing mechanism further includes a support column 12, which is fixedly installed on one side of the drive plate 8 inside the cavity 7, and the support column 12 is located between adjacent insert rods 10. A gear 13 is sleeved on the outer wall of the support column 12. The side wall of the drive plate 8 has several tooth grooves that mesh with the gear 13. The end of the gear 13 away from the support column 12 is connected to a limiting post 14. One end of the limiting post 14 extends into a limiting groove 16 opened at one end of the base 2. A connecting block 15 is rotatably connected to one end of the limiting post 14 within the limiting groove 16. A return spring 17 is provided inside the limiting post 14. One end is connected to a stop block 18, and the stop block 18 is rotatably connected to one end of the support column 12. In this example, the connecting block 15 is rotatably connected to one end of the limiting post 14 through a ring structure with a convex cross section. The stop block 18 is rotatably connected to one end of the support column 12 through a column structure with a T-shaped cross section. Other connection methods are acceptable as long as they can achieve a rotatable connection. The insert rod 10 has a bevel on its inner side. Through the linkage of the gear 13, the limiting post 14 and the return spring 17, the drive plate 8 is double-limited to prevent the insert rod 10 from loosening when the grinding wheel rotates at high speed, thereby improving the fixing stability.

[0017] In this example, the limiting post 14 is a hexagonal column structure, the thickness of the gear 13 is greater than the thickness of the drive plate 8, and the drive plate 8 is an annular structure. The hexagonal structure facilitates tool operation, the thickness design of the gear 13 ensures meshing stability, and the annular drive plate 8 is subjected to more uniform force, thus extending its service life.

[0018] In this example, the rail groove 9 is arc-shaped, and the plurality of the insert rods 10 are arranged in a circumferentially equidistant array; the arc-shaped rail groove 9 makes the movement of the insert rods 10 more stable, and the circumferentially equidistantly distributed insert rods 10 ensures balanced force during fixing and reduces installation eccentricity error.

[0019] In this example, the limiting post 14 is located in the limiting groove 16 and has a hexagonal groove 19 at one end. The connecting block 15 is annular and its inner diameter is larger than the maximum inner diameter of the hexagonal groove 19. The hexagonal groove 19 facilitates the operation of the limiting post 14 with a wrench. The structural design of the connecting block 15 does not affect the insertion of tools and improves the ease of disassembly.

[0020] In this example, an elastic resin layer 6 is fixedly installed on the inner wall of the substrate 2, and the elastic resin layer 6 is adapted to the inner wall of the substrate 2 and the keyway 5. The elastic resin layer 6 can buffer grinding vibration, reduce chatter and scratches on the workpiece surface, and compensate for installation gaps to improve fitting accuracy.

[0021] The working principle of this utility model is as follows: During installation, the connecting block 15 is pushed to drive the limiting post 14 to overcome the elastic force of the return spring 17 and move out of the limiting groove 16. The grinding wheel body 1 is then fitted onto the drive shaft where the grinding wheel needs to be installed. The outer wall of the drive shaft contacts and presses against the inclined surface of the insertion rod 10, causing the insertion rod 10 to move outward. The drive post 11 slides along the rail groove 9 to drive the drive plate 8 to rotate, while the torsion spring 20 stores energy. When the insertion rod 10 moves to correspond with the insertion hole on the drive shaft, the torsion spring 20 releases torque to drive the drive plate 8 to reset, allowing the insertion rod 10 to be inserted into the insertion hole to complete the initial fixation. Subsequently, the return spring 17 pushes the limiting post 14 to insert into the limiting groove 16, and the gear 13 engages with the tooth groove of the drive plate 8 to achieve locking, preventing the insertion rod 10 from loosening.

[0022] During disassembly, insert a hexagonal wrench into the hexagonal groove 19 and push the limiting post 14 out of the limiting groove 16. Rotate the wrench to drive the limiting post 14 and the gear 13 to rotate. The gear 13 drives the meshing drive plate 8 to rotate, causing the drive post 11 to slide along the rail groove 9 and drive the insertion rod 10 to exit from the insertion hole of the drive shaft. Then the grinding wheel body 1 can be removed.

[0023] During the grinding process, the elastic resin layer 6 on the inner wall of the substrate 2 buffers vibration through its own deformation, reduces chatter caused by equipment or workpiece errors, and fills the gap between the substrate 2 and the drive shaft, thereby improving rotational stability.

[0024] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A resin composite high-performance precision grinding wheel, comprising a grinding wheel body (1), characterized in that: The grinding wheel body (1) includes a base (2), a bonding layer (3), and an abrasive layer (4). The base (2) is located inside the abrasive layer (4), and the bonding layer (3) is located between the base (2) and the abrasive layer (4). A fixing mechanism is provided inside the base (2). The fixing mechanism includes a drive plate (8), and a cavity (7) is provided inside the base (2). The drive plate (8) is rotatably installed in the cavity (7). A number of rail grooves (9) are symmetrically provided on one side of the drive plate (8). A drive column (11) is provided in the rail groove (9). One end of the drive column (11) is connected to a plug rod (10) on one side of the drive plate (8), and one end of the plug rod (10) extends to the inside of the base (2). The side of the drive plate (8) away from the drive column (11) is fixedly connected to the inner wall of one end of the cavity (7) by a torsion spring (20).

2. The resin composite high-performance precision grinding wheel according to claim 1, characterized in that: The fixing mechanism also includes a support column (12), which is fixedly installed on one side of the drive plate (8) in the cavity (7) and the support column (12) is located between adjacent insert rods (10). A gear (13) is sleeved on the outer wall of the support column (12). Several tooth grooves that mesh with the gear (13) are opened on the side wall of the drive plate (8). A limiting post (14) is connected to the end of the gear (13) away from the support column (12). One end of the limiting post (14) extends into the limiting groove (16) opened at one end of the base (2). A connecting block (15) is rotatably connected to one end of the limiting post (14) in the limiting groove (16). A reset spring (17) is provided inside the limiting post (14). A stop block (18) is connected to one end of the reset spring (17), and the stop block (18) is rotatably connected to one end of the support column (12). The insert rods (10) are all provided with inclined surfaces on their inner sides.

3. The resin composite high-performance precision grinding wheel according to claim 2, characterized in that: The limiting post (14) is a hexagonal column structure, the thickness of the gear (13) is greater than the thickness of the drive plate (8), and the drive plate (8) is a ring structure.

4. The resin composite high-performance precision grinding wheel according to claim 3, characterized in that: The track groove (9) is arc-shaped, and the several insert rods (10) are arranged in a circumferentially equidistant array.

5. The resin composite high-performance precision grinding wheel according to claim 4, characterized in that: The limiting post (14) is located in the limiting groove (16) with a hexagonal groove (19) at one end. The connecting block (15) is annular and the inner diameter of the connecting block (15) is greater than the maximum inner diameter of the hexagonal groove (19).

6. The resin composite high-performance precision grinding wheel according to claim 2, characterized in that: An elastic resin layer (6) is fixedly installed on the inner wall of the substrate (2), and the elastic resin layer (6) is adapted to the inner wall of the substrate (2) and the keyway (5).

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