An adjustable floating sanding tool

By designing an adjustable dust cover, the problem of the inability to adjust the inner diameter of the dust cover in existing floating grinding tools has been solved, achieving a better dust protection effect.

CN224464437UActive Publication Date: 2026-07-07无锡浩普科技有限公司

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
无锡浩普科技有限公司
Filing Date
2025-08-20
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

Existing floating grinding tools have a problem with poor dust protection because the dust cover and the grinding head mounting base are connected by threads, which makes it impossible to adjust the inner diameter of the dust cover.

Method used

An adjustable dust cover was designed, consisting of cover body A, cover body B and adjustment components. Through a snap-fit ​​installation method, the inner diameter of the dust cover can be adjusted according to the diameter of the grinding head, and the dust protection effect is improved when combined with the dust protection components.

Benefits of technology

While ensuring installation stability and ease of operation, it improves dust prevention and prevents dust from entering the interior of the grinding tool.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224464437U_ABST
Patent Text Reader

Abstract

The utility model discloses an adjustable floating polishing tool, including setting in the power assembly of main part inside, the both ends of main part are provided with floating mechanism, the bottom of main part is provided with base, the bottom of base is provided with grinding head mounting seat, the bottom of grinding head mounting seat is provided with grinding head, the junction of grinding head mounting seat and grinding head is provided with adjustable dustproof shield on the surface, adjustable dustproof shield is by cover A, cover B, the symmetrical setting of adjusting assembly, dustproof component is composed, through setting adjustable dustproof shield, make adjustable dustproof shield be split type structure, and be snap -mounting, adjustable dustproof shield is directly with the junction surface of grinding head mounting seat and grinding head when installing snap -mounting, and the inside diameter of adjustable dustproof shield can adjust to a certain extent according to the diameter of grinding head, under the condition of satisfying installation stability and the degree of operation convenience, improve dustproof effect.
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Description

Technical Field

[0001] This utility model belongs to the field of polishing tool technology, specifically relating to an adjustable floating polishing tool. Background Technology

[0002] A floating polishing tool is a polishing tool based on pneumatic principles. It can provide constant axial and radial floating forces and is mainly used for polishing the surfaces of various workpieces.

[0003] Existing floating grinding tools rely on dust covers installed at the connection between the grinding head and the grinding head mount for dust protection. During installation, the grinding head is first fixed to the mounting base, and then the dust cover is inserted through the grinding head to the surface of the mounting base. Because the dust cover and the mounting base are fixed by threads, a gap is left between the internal silicone dustproof structure and the surface of the grinding head during installation. This results in an enlarged inner diameter of the dust cover, and because the inner diameter of the dust cover cannot be adjusted, the dustproof effect is poor. To address this issue, this invention proposes an adjustable floating grinding tool. Utility Model Content

[0004] The purpose of this utility model is to provide an adjustable floating grinding tool to solve the problem mentioned in the background art that, due to the threaded connection between the dust cover and the grinding head mounting base, the inner diameter of the dust cover is enlarged to ensure smooth installation between the dust cover and the grinding head mounting base and the grinding head, and the dust cover cannot be adjusted in inner diameter, resulting in poor dust protection effect.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an adjustable floating grinding tool, comprising a power component disposed inside a main body, floating mechanisms disposed at both ends of the main body, a base disposed at the bottom of the main body, a grinding head mounting seat disposed at the bottom end of the base, a grinding head disposed at the bottom end of the grinding head mounting seat, an adjustable dust cover disposed on the surface of the connection between the grinding head mounting seat and the grinding head, the adjustable dust cover comprising a cover body A, a cover body B, symmetrically arranged adjustment components and dustproof components, the cover body A being disposed on one side of the connection between the grinding head and the grinding head mounting seat, the cover body B being disposed on the other side of the connection between the grinding head and the grinding head mounting seat, one side of the cover body A and one side of the cover body B being connected by a pivot, the symmetrically arranged adjustment components being disposed at the connection between the other side of the cover body A and the other side of the cover body B, and the dustproof components being disposed on the inner side of the bottom end of the cover body A and the inner side of the bottom end of the cover body B.

[0006] Preferably, the dustproof component consists of annular protrusions and annular silicone, wherein the annular silicone is fixed to the inner side of the bottom end of cover A and the inner side of the bottom end of cover B, and the annular protrusions are fixed to the inner side of the annular silicone.

[0007] Preferably, the adjustment assembly consists of a rotating groove, a threaded groove, and an adjustment rod. The rotating groove is located on the inner side of the other end of the cover A, the threaded groove is located on the inner side of the other end of the cover B, and the adjustment rod is located on the inner side of the rotating groove and the inner side of the threaded groove. The surface of the adjustment rod is threadedly connected to the inner wall of the threaded groove.

[0008] Preferably, the adjusting rod has a cylindrical structure.

[0009] Preferably, a limiting component is provided at the connection between the inner side of the cover A, the inner side of the cover B and the grinding head mounting seat. The limiting component consists of a protrusion and a groove. The groove is opened on the surface of the grinding head mounting seat, and the protrusions are fixed to the inner side of the cover A and the inner side of the cover B. The protrusions are engaged with the inner side of the groove.

[0010] Preferably, the surface of the protrusion fits into the inner wall of the groove.

[0011] Preferably, an air tube is provided at the top of the main body.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This invention relates to a floating grinding tool. During operation, a dust cover protects the connection between the grinding head and the grinding head mounting base, preventing dust from entering the tool. However, because the dust cover is a single, fixed structure with no adjustable dimensions and is installed using a threaded connection, a gap exists between the inner wall of the dust cover and the surface of the grinding head after installation. Furthermore, the fixed size of the dust cover results in poor dust protection. This invention addresses this issue by providing an adjustable dust cover. The adjustable dust cover is a detachable, snap-fit ​​structure. During installation, it directly engages with the connection between the grinding head mounting base and the grinding head. The inner diameter of the adjustable dust cover can be adjusted to a certain extent according to the diameter of the grinding head, improving dust protection while maintaining installation stability and ease of operation. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This utility model Figure 1 Enlarged schematic diagram of region A in the diagram;

[0016] Figure 3 This is a cross-sectional view of the adjustable dust cover, grinding head mounting base, and grinding head mounting location of this utility model.

[0017] Figure 4 This is a schematic diagram of the adjustment component structure of this utility model;

[0018] In the diagram: 1. Main body; 2. Floating mechanism; 3. Grinding head; 4. Adjustable dust cover; 41. Cover A; 410. Limiting component; 42. Cover B; 43. Adjusting component; 431. Rotating groove; 432. Threaded groove; 433. Adjusting rod; 44. Dustproof component; 441. Annular protrusion; 442. Annular silicone; 5. Base; 6. Grinding head mounting seat. Detailed Implementation

[0019] 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.

[0020] Please see Figures 1 to 4This utility model provides a technical solution: an adjustable floating grinding tool, including a power component installed inside the main body 1. During operation, external compressed air drives the power component through an air pipe, allowing gas to enter a pneumatic motor. This converts the pressure energy of the gas into mechanical energy, driving a shaft connected to the motor to rotate at high speed, thereby providing rotational power to the grinding head 3. Floating mechanisms 2 are installed at both ends of the main body 1. During operation, if the workpiece surface is uneven, the flexible components such as rubber and bellows that make up the floating mechanism 2 undergo elastic deformation, and the springs that make up the floating mechanism 2 also compress or extend accordingly. This allows the grinding head 3 to adaptively follow the changes in the workpiece surface contour, maintaining a relatively stable grinding pressure and preventing damage to the workpiece or grinding head due to excessive pressure. To prevent poor grinding results due to insufficient pressure, a base 5 is provided at the bottom of the main body 1. A grinding head mounting seat 6 is provided at the bottom of the base 5, and a grinding head 3 is provided at the bottom of the grinding head mounting seat 6. An adjustable dust cover 4 is provided on the surface of the connection between the grinding head mounting seat 6 and the grinding head 3. The adjustable dust cover 4 is composed of a cover body A41, a cover body B42, symmetrically arranged adjustment components 43, and dust protection components 44. The cover body A41 is located on one side of the connection between the grinding head 3 and the grinding head mounting seat 6, and the cover body B42 is located on the other side of the connection between the grinding head 3 and the grinding head mounting seat 6. One side of the cover body A41 and one side of the cover body B42 are connected by a pivot. The adjustable dust cover 4 is composed of multiple structures through the cover body A41, cover body B42, and adjustment components 43, which can be adjusted according to the grinding... The diameter adjustment of head 3 allows for adjustment of the inner diameter of the dust cover 4 to ensure dust protection. Symmetrically arranged adjustment components 43 are located at the connection between the other side of cover A41 and the other side of cover B42. Dust protection components 44 are located on the inner bottom of both cover A41 and cover B42. This adjustable dust cover 4 improves upon the previous floating grinding tool design, protecting the connection between the grinding head 3 and the grinding head mounting base 6 from dust entering the tool. However, because the dust cover is an integral structure installed using threads, a gap exists between the inner wall of the dust cover and the surface of the grinding head 3 after installation. Furthermore, the fixed size of the dust cover prevents adjustment and can cause directional issues. To address the shortcomings, an adjustable dust cover 4 is incorporated. This adjustable dust cover 4 features a detachable structure and a snap-fit ​​installation. During installation, the adjustable dust cover 4 directly engages with the surface of the connection between the grinding head mounting base 6 and the grinding head 3. Furthermore, the inner diameter of the adjustable dust cover 4 can be adjusted to a certain extent according to the diameter of the grinding head 3. This improves dust prevention while maintaining installation stability and ease of operation. The dustproof component 44 consists of annular protrusions 441 and annular silicone rubber 442. The annular silicone rubber 442 is fixed to the inner bottom of the cover body A41 and the inner bottom of the cover body B42. The dustproof component 44 provides dust protection at the connection between the grinding head mounting base 6 and the grinding head 3. The multiple layers of 411 further enhance the dustproof effect by creating multiple layers of dust barriers.All annular protrusions 441 are fixed to the inner side of annular silicone 442. The adjusting assembly 43 consists of a rotating groove 431, a threaded groove 432, and an adjusting rod 433. The rotating groove 431 is located inside the other end of the cover A41, and the threaded groove 432 is located inside the other end of the cover B42. The adjusting rod 433 is located inside the rotating groove 431 and the threaded groove 432. The surface of the adjusting rod 43 is threadedly connected to the inner wall of the threaded groove 432. By adjusting the assembly 43, while ensuring the connection between the cover A41 and the cover B42, the installation distance between the ends of the cover A41 and the cover B42 is adjusted, thereby achieving the adjustment of the inner diameter of the adjustable dust cover 4. The adjusting rod 433 has a cylindrical structure, and an air pipe is provided at the top of the main body 1.

[0021] In this embodiment, preferably, a limiting component 410 is provided at the connection between the inner side of the cover A41, the inner side of the cover B42 and the grinding head mounting base 6. The limiting component 410 consists of protrusions and grooves. The grooves are formed on the surface of the grinding head mounting base 6. When the adjustable dust cover 4 is installed at the connection between the grinding head mounting base 6 and the grinding head 3, the limiting component 410 limits the adjustable dust cover 4 to a fixed position at a set height. The protrusions are fixed to the inner side of the cover A41 and the inner side of the cover B42. The protrusions are inserted into the inner side of the grooves, and the surface of the protrusions is in contact with the inner wall of the grooves.

[0022] The working principle and usage process of this utility model are as follows: During operation, external compressed air drives the power component through the air pipe, allowing the gas to enter the pneumatic motor and converting the pressure energy of the gas into mechanical energy, which drives the shaft connected to the motor to rotate at high speed, thereby enabling the grinding head 3 to obtain rotational power. During the grinding process, when the grinding tool approaches the workpiece, the floating mechanism plays a role. If there are uneven surfaces on the workpiece, flexible components such as rubber and corrugated pipes will undergo elastic deformation, and the spring will also be compressed or extended accordingly, so that the grinding head 3 can adaptively follow the changes in the surface contour of the workpiece and maintain a relatively stable grinding pressure. During the grinding process, the adjustable dust cover 4 prevents dust from entering the interior of the grinding tool through the inner side of the connection between the grinding head 3 and the grinding head mounting base 6.

[0023] During the installation of the adjustable dust cover 4, the unfolded cover body A41 and cover body B42 are brought into contact with the surfaces of the connection between the grinding head mounting seat 6 and the grinding head 3, and the installation position is limited by the limiting component 410. Then, the ends of the unfolded cover body A41 and cover body B42 are brought into contact by the rotating shaft, and the end of the adjusting rod 433 located inside the rotating groove 431 is initially inserted into the inner side of the threaded groove 432. Then, the adjusting rod 433 is rotated, so that the end of the adjusting rod 433 and the threaded groove 432 rotate together, so that the ends of cover body A41 and cover body B42 are closed. During the closure process, the personnel can observe the distance between the dust cover component 44 and the grinding head 3. When the distance between the grinding head 3 and the dust cover component 44 reaches the standard, the rotation of the adjusting rod 433 is stopped, and the installation of the adjustable dust cover 4 is completed.

[0024] 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. An adjustable floating polishing tool, comprising a power assembly disposed inside a main body (1), characterized in that: The main body (1) is provided with floating mechanisms (2) at both ends, and a base (5) is provided at the bottom of the main body (1). A grinding head mounting seat (6) is provided at the bottom end of the base (5), and a grinding head (3) is provided at the bottom end of the grinding head mounting seat (6). An adjustable dust cover (4) is provided on the surface of the connection between the grinding head mounting seat (6) and the grinding head (3). The adjustable dust cover (4) is composed of a cover body A (41), a cover body B (42), a symmetrically arranged adjustment component (43), and a dustproof component (44). Body A (41) is located on one side of the connection between the grinding head (3) and the grinding head mounting base (6), and cover B (42) is located on the other side of the connection between the grinding head (3) and the grinding head mounting base (6). One side of cover A (41) and one side of cover B (42) are connected by a rotating shaft. The symmetrically arranged adjustment components (43) are located at the connection between the other side of cover A (41) and the other side of cover B (42). The dustproof components (44) are all located on the inner side of the bottom end of cover A (41) and the inner side of the bottom end of cover B (42).

2. The adjustable floating polishing tool according to claim 1, characterized in that: The dustproof component (44) is composed of annular protrusions (441) and annular silicone (442). The annular silicone (442) is fixed to the inner side of the bottom end of the cover A (41) and the inner side of the bottom end of the cover B (42). The annular protrusions (441) are fixed to the inner side of the annular silicone (442).

3. The adjustable floating polishing tool according to claim 1, characterized in that: The adjustment assembly (43) consists of a rotating groove (431), a threaded groove (432), and an adjustment rod (433). The rotating groove (431) is located on the inner side of the other end of the cover A (41), and the threaded groove (432) is located on the inner side of the other end of the cover B (42). The adjustment rod (433) is located on the inner side of the rotating groove (431) and the inner side of the threaded groove (432). The surface of the adjustment rod (433) is threadedly connected to the inner wall of the threaded groove (432).

4. An adjustable floating polishing tool according to claim 3, characterized in that: The adjusting rod (433) has a cylindrical structure.

5. An adjustable floating polishing tool according to claim 1, characterized in that: A limiting component (410) is provided at the connection between the inner side of the cover A (41), the inner side of the cover B (42) and the grinding head mounting base (6). The limiting component (410) consists of a protrusion and a groove. The groove is opened on the surface of the grinding head mounting base (6). The protrusions are fixed to the inner side of the cover A (41) and the inner side of the cover B (42). The protrusions are inserted into the inner side of the groove.

6. An adjustable floating polishing tool according to claim 5, characterized in that: The surface of the protrusion fits into the inner wall of the groove.

7. An adjustable floating polishing tool according to claim 1, characterized in that: An air pipe is provided on the top of the main body (1).