Sapphire glass grinding disc

By designing reinforcement and cooling components, the problem of metal substrate detachment or displacement from the grinding layer during high-load use of sapphire glass grinding discs has been solved, resulting in longer service life, greater safety, and improved processing efficiency.

CN223961107UActive Publication Date: 2026-03-03DONGGUAN YUFENG OPTICAL TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-02
Publication Date
2026-03-03

AI Technical Summary

Technical Problem

After prolonged use under high load, the bonding layer between the metal substrate and the grinding layer of sapphire glass grinding discs is prone to failure, leading to detachment or displacement, which affects processing efficiency and poses safety hazards.

Method used

The design incorporates reinforcement and cooling components. The structure of retaining rings and blocks enhances the installation stability of the grinding layer, and a liquid reservoir is set in the metal substrate to inject coolant and reduce the temperature.

Benefits of technology

It improves the service life and safety of the grinding disc, prevents the grinding layer from shifting, and enhances processing efficiency and product quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a sapphire glass grinding disc which comprises a metal base body, a reinforcing assembly is installed on the top of the metal base body, a cooling assembly is fixed to the side face of the metal base body, the reinforcing assembly comprises a grinding layer, a clamping ring is fixed to the bottom of the grinding layer, and a clamping block is fixed to the side face of the clamping ring. Limiting grooves are formed in the upper end and the lower end of the clamping block correspondingly, a clamping groove is formed in the top of the metal base body, a mounting groove is formed in the inner wall of the clamping groove, a rotating groove is formed in the bottom of the mounting groove, shrinkage grooves are formed in the upper end and the lower end of the side, away from the mounting groove, of the rotating groove correspondingly, and springs are fixed in the shrinkage grooves. According to the grinding disc provided by the invention, the mounting stability of the grinding layer on the metal substrate can be enhanced, so that the condition that the grinding layer deviates or is separated when the grinding disc works for a long time under high load can be prevented, and the effects of prolonging the service life of the grinding disc and improving the use safety of the grinding disc are achieved.
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Description

Technical Field

[0001] This utility model relates to the field of grinding disc technology, specifically a sapphire glass grinding disc. Background Technology

[0002] With advancements in technology and industrial development, the application areas of sapphire glass grinding discs continue to expand. For example, sapphire glass is gaining increasing attention in fields such as smartphone screens and camera lenses due to its excellent wear and scratch resistance. Furthermore, with continuous advancements in grinding technology, the processing efficiency and quality of sapphire glass grinding discs are constantly improving, leading to their widespread application in even more fields.

[0003] Chinese patent CN217914731U provides a crystal glass grinding disc, including a substrate and a grinding body. A connecting hole is provided at the center of both the substrate and the grinding body. The grinding body consists of a first grinding body and a second grinding body. The lower surface of the second grinding body is connected to the substrate. Both the first and second grinding bodies have abrasive protrusions. The first grinding body is formed by connecting at least three grinding units, each with a different elastic modulus, and each grinding unit has a through hole. The grinding body of this invention has a certain degree of elasticity, avoiding excessively deep scratches caused by rigid contact between the workpiece and the grinding disc, thus ensuring product quality.

[0004] When the aforementioned sapphire glass grinding disc is used, the bonding layer between the metal substrate and the grinding layer is prone to failure after prolonged high-load use. This can lead to separation or displacement between the metal substrate and the grinding layer, which not only affects the efficiency of subsequent grinding processes but also poses a safety hazard.

[0005] Therefore, this utility model provides a sapphire glass grinding disc to solve the above problems. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a sapphire glass grinding disc, which solves the problem that when the aforementioned sapphire glass grinding disc is used for a long time under high load, the bonding layer between the metal substrate and the grinding layer is prone to failure, resulting in separation or displacement between the metal substrate and the grinding layer. This not only affects the efficiency of subsequent grinding processes but also poses safety hazards.

[0007] To achieve the above objectives, this utility model is implemented through the following technical solution: a sapphire glass grinding disc, comprising a metal substrate, wherein a reinforcing component is installed on the top of the metal substrate, and a cooling component is fixed on the side of the metal substrate;

[0008] The reinforcement component includes a grinding layer, a retaining ring fixed to the bottom of the grinding layer, a retaining block fixed to the side of the retaining ring, a limit groove formed at both the upper and lower ends of the retaining block, a retaining groove formed at the top of the metal substrate, an installation groove formed on the inner wall of the retaining groove, a rotating groove formed at the bottom of the installation groove, and contraction grooves formed at both the upper and lower ends of the rotating groove away from the installation groove, a spring fixed in the contraction groove, and a limit block fixed at the other end of the spring.

[0009] Preferably, the card slot has four sets of mounting slots, which are symmetrically distributed in the card slot, and the mounting slots are connected to the rotation slot.

[0010] Preferably, the retaining ring has the same number of retaining blocks as the mounting groove fixed on its side.

[0011] Preferably, an adhesive is applied to the junction between the metal substrate and the polishing layer.

[0012] Preferably, the cooling component includes a rotating shaft, a sealing cap is fixed to the side of the rotating shaft, a liquid storage tank is formed inside the metal substrate, and a sealing port is formed on the inner wall of the liquid storage tank.

[0013] Preferably, the rotating shaft is rotatably connected to the side of the metal substrate, the sealing port is connected to the liquid storage tank, and the sealing port is opened on the side of the rotating shaft.

[0014] Beneficial effects

[0015] This invention provides a sapphire glass grinding disc. Compared with the prior art, it has the following advantages:

[0016] (1) A sapphire glass grinding disc, by setting a reinforcing component, can enhance the installation stability of the grinding layer on the metal substrate, thereby preventing the grinding layer from shifting or separating when the grinding disc is working under high load for a long time, so as to improve the service life of the grinding disc and improve the safety of the grinding disc.

[0017] (2) A sapphire glass grinding disc, by setting a cooling component, allows the grinding disc to be filled with coolant, thereby reducing the heat generated during the grinding process when the grinding disc is actually used, thereby improving the processing efficiency of sapphire glass, and preventing cracks from forming on the glass surface, thus improving product quality. Attached Figure Description

[0018] Figure 1 This is a perspective view of the external structure of this utility model;

[0019] Figure 2 This is a side cross-sectional view of the reinforcement component of this utility model;

[0020] Figure 3 yes Figure 2 Enlarged view of the structure at point A in the middle;

[0021] Figure 4 This is a side sectional perspective view of the cooling component of this utility model.

[0022] In the diagram: 1. Metal substrate; 2. Reinforcing component; 21. Grinding layer; 22. Snap ring; 23. Snap block; 24. Limiting groove; 25. Snap groove; 26. Mounting groove; 27. Rotating groove; 28. Shrinking groove; 29. ​​Spring; 210. Limiting block; 3. Cooling component; 31. Rotating shaft; 32. Sealing cap; 33. Sealing port; 34. Liquid storage tank. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example 1:

[0025] Please see Figure 1-3 A sapphire glass grinding disc includes a metal substrate 1, a reinforcing component 2 mounted on the top of the metal substrate 1, and a cooling component 3 fixed on the side of the metal substrate 1.

[0026] The reinforcement component 2 includes a grinding layer 21, a retaining ring 22 fixed at the bottom of the grinding layer 21, a retaining block 23 fixed on the side of the retaining ring 22, a limit groove 24 opened at both the upper and lower ends of the retaining block 23, a slot 25 opened at the top of the metal substrate 1, an installation groove 26 opened on the inner wall of the slot 25, a rotating groove 27 opened at the bottom of the installation groove 26, a shrinkage groove 28 opened at both the upper and lower ends of the rotating groove 27 away from the installation groove 26, a spring 29 fixed in the shrinkage groove 28, and a limit block 210 fixed at the other end of the spring 29;

[0027] The slot 25 has four sets of mounting slots 26, which are symmetrically distributed in the slot 25. The mounting slots 26 are connected to the rotating slots 27. The tail of the rotating slots 27 is located directly below the mounting slots 26, so that when the grinding layer 21 is rotated and installed in the metal substrate 1, the four positions of the retaining ring 22 can be fixed, thereby making the installation of the retaining ring 22 more stable.

[0028] The retaining ring 22 has the same number of retaining blocks 23 as the mounting groove 26 fixed on its side. The outer diameter of the retaining ring 22 is smaller than the outer diameter of the mounting groove 26, which makes it easier to position the retaining ring 22 and the mounting groove 26 during installation, thus ensuring smooth installation.

[0029] The metal substrate 1 and the grinding layer 21 are both coated with adhesive. The adhesive can further increase the installation stability of the grinding layer 21 when it is rotated and installed on the metal substrate 1, thereby preventing the grinding layer 21 from shifting during high-intensity operation.

[0030] In this embodiment, before installing the polishing layer 21 onto the metal substrate 1, an adhesive is first applied to the surface of the metal substrate 1. Then, the polishing layer 21 is secured in the slot 25 by the retaining ring 22, causing the retaining block 23 to engage in the mounting slot 26. By rotating the polishing layer 21, the retaining block 23 rotates along the trajectory of the rotating slot 27 to the other end of the rotating slot 27. This causes the retaining block 23 to push the limiting block 210 to retract into the shrinkage slot 28 via the spring 29. When the retaining block 23 reaches the bottom of the rotating slot 27, the limiting block 210... The spring 29 stores the elastic force and rebounds into the limiting groove 24 in the locking block 23, thus limiting and locking the locking block 23. During rotation, the bottom of the grinding layer 21 adheres to the adhesive on the surface of the metal substrate 1. When the grinding layer 21 stops rotating, it can be squeezed to make the grinding layer 21 and the metal substrate 1 fit tightly together, thereby making the installation between the metal substrate 1 and the grinding layer 21 stable, thus improving the service life of the grinding disc and preventing the grinding disc from detaching or shifting after long-term use.

[0031] Example 2:

[0032] Please see Figure 1-4 Based on Embodiment 1, this embodiment provides a technical solution for a cooling component 3, which includes a rotating shaft 31, a sealing cap 32 fixed on the side of the rotating shaft 31, a liquid storage tank 34 inside the metal substrate 1, and a sealing port 33 on the inner wall of the liquid storage tank 34.

[0033] The rotating shaft 31 is rotatably connected to the side of the metal substrate 1. The sealing port 33 is connected to the liquid storage tank 34. The sealing port 33 is opened on the side of the rotating shaft 31. Coolant can be injected into the liquid storage tank 34 through the sealing port 33, so as to reduce the temperature of the grinding disc after long-term use during subsequent grinding disc processing, and prevent the grinding disc temperature from being too high, which may cause cracks to be processed on the sapphire glass.

[0034] In this embodiment, when a grinding disc is needed for processing, the sealing cap 32 can be rotated by rotating the shaft 31 to open the sealing port 33. Then, by connecting the delivery pipe, coolant can be injected into the storage tank 34. After sufficient coolant is injected into the storage tank 34, the sealing cap 32 is rotated to lock into place at the entrance of the sealing port 33, thereby keeping the inner wall of the storage tank 34 sealed. When the grinding disc is being processed, the coolant inside the grinding disc can reduce the surface temperature of the grinding disc to a certain extent. With the help of the external auxiliary cooling device, the grinding disc can maintain a stable temperature, thereby preventing the grinding disc from overheating and causing cracks in the processed sapphire glass.

[0035] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, 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 process, method, article, or apparatus.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sapphire glass polishing disc, characterized by, Including metal base (1), the top of metal base (1) is installed with reinforcing assembly (2), the side of metal base (1) is fixed with cooling assembly (3); The reinforcing assembly (2) includes an abrasive layer (21), the bottom of the abrasive layer (21) is fixed with a snap ring (22), the side of the snap ring (22) is fixed with a clamping block (23), the upper and lower ends of the clamping block (23) are both provided with a limiting slot (24), the top of the metal base (1) is provided with a clamping groove (25), the inner wall of the clamping groove (25) is provided with an installation groove (26), the bottom of the installation groove (26) is provided with a rotating groove (27), the upper and lower ends of the side of the rotating groove (27) away from the installation groove (26) are both provided with a contraction groove (28), the contraction groove (28) is fixed with a spring (29), the other end of the spring (29) is fixed with a limiting block (210).

2. The sapphire glass polishing disc of claim 1, wherein, Four groups of installation grooves (26) are arranged in the clamping groove (25), and the four groups of installation grooves (26) are symmetrically distributed in the clamping groove (25), and the installation groove (26) is communicated with the rotating groove (27).

3. The sapphire glass polishing disc of claim 1, wherein, The same number of clamping blocks (23) as the installation grooves (26) are fixed on the side of the snap ring (22).

4. The sapphire glass polishing disc of claim 1, wherein, The connecting part between the metal base (1) and the abrasive layer (21) is coated with an adhesive.

5. The sapphire glass polishing disc of claim 1, wherein, The cooling assembly (3) includes a rotating shaft (31), the side of the rotating shaft (31) is fixed with a sealing cap (32), the inside of the metal base (1) is provided with a liquid storage groove (34), and the inner wall of the liquid storage groove (34) is provided with a sealing opening (33).

6. The sapphire glass polishing disc of claim 5, wherein, The rotating shaft (31) is rotatably connected to the side of the metal base (1), the sealing opening (33) is communicated with the liquid storage groove (34), and the sealing opening (33) is arranged on the side of the rotating shaft (31).

Citation Information

Patent Citations

  • Crystal glass grinding disc

    CN217914731U