Sectional type adjustable grinding brush
By designing a segmented adjustable grinding brush, and utilizing the combination of a limiting structure and protrusions and grooves, the problem of needing to replace the entire grinding brush after wear has been solved, thus achieving convenient replacement of the brush sleeve and cost reduction.
Patent Information
- Application Number
- CN202520478437.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-19
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-03-19
AI Technical Summary
Existing grinding brushes are of a single piece, requiring replacement of the entire brush after wear, resulting in waste and increased operating costs.
The design features a segmented adjustable grinding brush. Through the combination of a limiting structure and protrusions and grooves, the brush sleeve can be easily replaced, reducing replacement costs.
This enables convenient replacement of worn brush sleeves, reduces replacement costs, and improves the economic benefits for enterprises.
Smart Images
Figure CN223834256U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of grinding brush technology, specifically a segmented adjustable grinding brush. Background Technology
[0002] In the chemical mechanical polishing process, the wafer is mostly polished by a polishing brush. Under certain pressure and with the help of polishing fluid, the material is peeled off layer by layer from the wafer surface to achieve a highly planarized effect.
[0003] During the grinding process, because the length of the grinding brush is fixed while the size of the wafer changes with the processing requirements, when polishing the wafer with the grinding brush, part of the grinding brush will be suspended on the outside of the wafer and cannot be polished. As a result, the part of the grinding brush that contacts the wafer will wear out quickly. However, most existing grinding brushes are of one-piece construction, and after they wear out, the whole thing needs to be replaced, which is wasteful and increases the cost of use.
[0004] Therefore, in order to solve the above problems, a segmented adjustable grinding brush is proposed. Utility Model Content
[0005] The purpose of this invention is to provide a segmented adjustable grinding brush to solve the problem mentioned in the background art that most existing grinding brushes are of one-piece construction, which require replacement of the whole brush after wear, resulting in waste and increased usage costs.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a segmented adjustable grinding brush, comprising: a rotating cylinder, a limiting plate installed on the left end surface of the rotating cylinder, and a brush sleeve sleeved on the outer side of the rotating cylinder;
[0007] The right end surface of the rotating cylinder is provided with an external threaded sleeve, the outer side of the rotating cylinder is provided with a protrusion, and the inner wall of the brush sleeve is provided with a groove.
[0008] The rotating cylinder is equipped with a limiting structure, which includes an internal threaded sleeve. The internal threaded sleeve is movably installed on the outer wall of the external threaded sleeve via a thread. A limiting groove is formed on the left side wall of the internal threaded sleeve. A limiting ring is rotatably installed on the inner side of the limiting groove. A rotating ring is fixedly connected to the left end of the limiting ring. A guide groove is formed on the inner wall of the rotating ring. A rubber pad is adhered to the left side wall of the rotating ring.
[0009] Preferably, the groove and guide groove are adapted to the protrusion, and the groove and guide groove are engaged on the outside of the protrusion.
[0010] Preferably, the external threaded sleeve is located on the right side of the convex strip.
[0011] Preferably, the rotating ring is located on the left side of the internal threaded sleeve and is fitted on the outside of the protrusion.
[0012] Preferably, the left side wall of the rubber pad abuts against the right side wall of the brush sleeve.
[0013] Compared with the prior art, the beneficial effects of this utility model are: by setting convex strips and grooves, the worn brush sleeve can be easily replaced on the rotating cylinder, which can reduce replacement costs and improve the economic benefits of enterprises.
[0014] This invention features a limiting structure. When the brush sleeve needs replacement, the inner threaded sleeve can be rotated. The inner threaded sleeve is threadedly connected to the outer threaded sleeve, allowing the inner threaded sleeve to be unscrewed from the outer threaded sleeve. During rotation, the inner threaded sleeve drives the limiting groove to rotate inside the limiting ring. Simultaneously, the inner threaded sleeve pulls the limiting ring and rotating ring through the limiting groove, causing the rotating ring to slide along the outside of the protrusion via the guide groove, pulling the rubber pad away from the brush sleeve. This releases the limiting structure from fixing the right side of the rotating cylinder, freeing up the right end of the rotating cylinder for easy removal of the worn brush sleeve. Then, a new brush sleeve is fitted onto the outside of the rotating cylinder, with the groove fitting snugly within the groove. The outer side of the protruding strip allows multiple brush sleeves to be neatly installed on the rotating cylinder, facilitating adjustment and replacement of the brush sleeves, reducing replacement costs, and improving the company's economic efficiency. Next, the rubber pad and rotating ring are fitted onto the outer side of the right end of the rotating cylinder. The rotating ring can be fitted onto the outer side of the protruding strip through the guide groove. Then, rotating the internal threaded sleeve allows it to be screwed onto the outer side of the external threaded sleeve. When rotating, the internal threaded sleeve can move to the left outside the external threaded sleeve. The internal threaded sleeve then drives the rotating ring to move on the rotating cylinder through the limiting groove and limiting ring. Under the limiting of the guide groove and the protruding strip, the rotating ring abuts against the brush sleeves vertically, making the multiple sets of brush sleeves installed stably on the rotating cylinder and easy to use. Attached Figure Description
[0015] Figure 1 This is a front view schematic diagram of the structure of this utility model;
[0016] Figure 2 This is an exploded view of the structure of this utility model;
[0017] Figure 3 This is an exploded view of the limiting structure of this utility model;
[0018] Figure 4 This is a front view sectional diagram of the rotating cylinder, brush sleeve, and limiting structure of this utility model.
[0019] In the diagram: 1. Rotating cylinder; 11. External threaded sleeve; 12. Raised bar; 13. Limiting plate; 14. Brush sleeve; 15. Groove; 2. Limiting structure; 21. Internal threaded sleeve; 22. Limiting groove; 23. Limiting ring; 24. Rotating ring; 25. Guide groove; 26. Rubber pad. Detailed Implementation
[0020] 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.
[0021] Please see Figures 1-4 The present invention provides an embodiment of a segmented adjustable grinding brush:
[0022] The rotating cylinder 1, the limiting plate 13, and the brush sleeve 14 used in this application are products that can be purchased directly from the market. Their principles and connection methods are existing technologies well known to those skilled in the art, so they will not be described in detail here.
[0023] A segmented adjustable grinding brush includes: a rotating cylinder 1, a limiting plate 13 installed on the left end surface of the rotating cylinder 1, and a brush sleeve 14 sleeved on the outer side of the rotating cylinder 1.
[0024] The right end surface of the rotating cylinder 1 is provided with an external threaded sleeve 11, the outer side of the rotating cylinder 1 is provided with a protrusion 12, and the inner wall of the brush sleeve 14 is provided with a groove 15.
[0025] The rotating cylinder 1 is equipped with a limiting structure 2, which includes an internal threaded sleeve 21. The internal threaded sleeve 21 is movably installed on the outer wall of the external threaded sleeve 11 via a thread. A limiting groove 22 is opened on the left side wall of the internal threaded sleeve 21. A limiting ring 23 is rotatably installed on the inner side of the limiting groove 22. A rotating ring 24 is fixedly connected to the left end of the limiting ring 23. A guide groove 25 is opened on the inner wall of the rotating ring 24. A rubber pad 26 is adhered to the left side wall of the rotating ring 24. By setting the protrusion 12 and the groove 15, the worn brush sleeve 14 can be easily replaced on the rotating cylinder 1, which can reduce replacement costs and improve the economic benefits of the enterprise.
[0026] Furthermore, the groove 15 and guide groove 25 are adapted to the protrusion 12. The groove 15 and guide groove 25 are engaged on the outside of the protrusion 12. The groove 15 cooperates with the protrusion 12 to provide a limit for the installation of the brush sleeve 14 on the outside of the rotating cylinder 1. The guide groove 25 cooperates with the protrusion 12 to provide a limit for the installation of the rotating ring 24 on the outside of the rotating cylinder 1.
[0027] Furthermore, the external threaded sleeve 11 is located on the right side of the protrusion 12, and the internal threaded sleeve 21 on the external threaded sleeve 11 can limit the brush sleeve 14 on the outside of the protrusion 12.
[0028] Furthermore, the rotating ring 24 is located on the left side of the internal threaded sleeve 21 and is sleeved on the outside of the protrusion 12. Rotating the internal threaded sleeve 21 can drive the rotating ring 24 to move outside the external threaded sleeve 11.
[0029] Furthermore, the left side wall of the rubber pad 26 abuts against the right side wall of the brush sleeve 14. The rubber pad 26 increases the friction between the brush sleeve 14 and the limiting structure 2, thereby improving the fixing effect on the brush sleeve 14.
[0030] Working principle: When the brush sleeve 14 needs to be replaced, the inner threaded sleeve 21 can be rotated. The inner threaded sleeve 21 is threadedly connected to the outer threaded sleeve 11. The inner threaded sleeve 21 can be unscrewed from the outer threaded sleeve 11. When the inner threaded sleeve 21 rotates, it can drive the limiting groove 22 to rotate inside the limiting ring 23. At the same time, the inner threaded sleeve 21 can pull the limiting ring 23 and the rotating ring 24 through the limiting groove 22, so that the rotating ring 24 slides on the outside of the protrusion 12 through the guide groove 25 and pulls the rubber pad 26 to separate from the brush sleeve 14. This releases the fixing of the limiting structure 2 on the right side of the rotating cylinder 1, so that the right end of the rotating cylinder 1 is freed up, making it easy to remove the worn brush sleeve 14 from the right end of the rotating cylinder 1.
[0031] Next, the new brush sleeve 14 is fitted onto the outside of the rotating cylinder 1, and the groove 15 can be fitted onto the outside of the protrusion 12, so that multiple brush sleeves 14 can be neatly installed on the rotating cylinder 1, so that the brush sleeves 14 can be adjusted and replaced, reducing replacement costs and improving the economic benefits of the enterprise. Then, the rubber pad 26 and the rotating ring 24 are fitted onto the outside of the right end of the rotating cylinder 1. The rotating ring 24 can be fitted onto the outside of the protrusion 12 through the guide groove 25. Then, the inner thread sleeve 21 is rotated, so that the inner thread sleeve 21 can be screwed onto the outside of the outer thread sleeve 11. When the inner thread sleeve 21 is rotated, it can move to the left outside the outer thread sleeve 11. The inner thread sleeve 21 drives the rotating ring 24 to move on the rotating cylinder 1 through the limiting groove 22 and the limiting ring 23. The rotating ring 24 is perpendicular to the brush sleeve 14 under the limiting of the guide groove 25 and the protrusion 12, so that multiple sets of brush sleeves 14 are installed stably on the rotating cylinder 1 and are easy to use.
[0032] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description. However, any modifications, alterations, or equivalent variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are considered equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.
Claims
1. A segmented adjustable abrasive brush, comprising: A rotating cylinder (1) is provided with a limiting plate (13) installed on the left end surface of the rotating cylinder (1) and a brush sleeve (14) is provided on the outer side of the rotating cylinder (1). Its features are: The right end surface of the rotating cylinder (1) is provided with an external threaded sleeve (11), the outer side of the rotating cylinder (1) is provided with a protrusion (12), and the inner wall of the brush sleeve (14) is provided with a groove (15). The rotating cylinder (1) is equipped with a limiting structure (2) inside. The limiting structure (2) includes an internal threaded sleeve (21). The internal threaded sleeve (21) is installed on the outer wall of the external threaded sleeve (11) by thread. A limiting groove (22) is opened on the left side wall of the internal threaded sleeve (21). A limiting ring (23) is rotatably installed on the inner side of the limiting groove (22). A rotating ring (24) is fixedly connected to the left end of the limiting ring (23). A guide groove (25) is opened on the inner wall of the rotating ring (24). A rubber pad (26) is adhered to the left side wall of the rotating ring (24).
2. The segmented adjustable grinding brush according to claim 1, characterized in that: The groove (15) and guide groove (25) are adapted to the protrusion (12), and the groove (15) and guide groove (25) are engaged on the outside of the protrusion (12).
3. The segmented adjustable grinding brush according to claim 1, characterized in that: The external threaded sleeve (11) is located to the right of the convex strip (12).
4. The segmented adjustable grinding brush according to claim 1, characterized in that: The rotating ring (24) is located on the left side of the internal threaded sleeve (21) and is sleeved on the outside of the protrusion (12).
5. A segmented adjustable grinding brush according to claim 1, characterized in that: The left side wall of the rubber pad (26) abuts against the right side wall of the brush sleeve (14).