Polishing device for curved surface polishing

Abstract

The utility model discloses a polishing device for curved surface polishing, which comprises a shell, one end of the shell is provided with a plurality of telescopic polishing rods, and the other end of the shell is provided with a holding part; the polishing rod comprises a polishing rod body, a polishing piece is arranged at one end of the polishing rod body, and the other end of the polishing rod body is connected with the shell through an elastic mechanism. The grinding device for grinding the curved surface has the advantages of being simple in structure, good in portability, high in applicability and good in grinding effect.

Description

Technical Field

[0001] This utility model relates to the field of grinding equipment technology, and in particular to a grinding device for grinding curved surfaces. Background Technology

[0002] Composite materials have the advantages of high strength and lightweight, and components with special curved surface structures made of composite materials are widely used in aerospace and other fields.

[0003] When existing curved composite material components are damaged and need repair, large grinding equipment or special grinding tools are usually required. However, large equipment cannot perform grinding on-machine or on-site, which is inconvenient. If flat grinding tools or hand sandpaper are used, the repaired area may be over-ground or unevenly ground, resulting in sharp edges and a rough surface after grinding, and poor grinding effect. The curvature of curved composite material components varies, and existing grinding tools are not suitable for curved composite material components with different curvatures. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a grinding device for curved surface grinding that is simple in structure, portable, highly applicable, and has a good grinding effect.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A polishing device for polishing curved surfaces includes a housing, one end of which is provided with a plurality of retractable polishing rods, and the other end of which is provided with a grip.

[0007] The polishing rod includes a polishing rod body, one end of which is provided with a polishing disc, and the other end is connected to the housing through an elastic mechanism.

[0008] As a further improvement to the above technical solution:

[0009] The elastic mechanism includes a transition block and a first elastic element and a second elastic element disposed at both ends of the transition block. The first elastic element is connected to the housing, and the second elastic element is connected to the grinding rod body.

[0010] The shell includes a shell wall and a shell bottom, which together form a shell cavity. Multiple hollow columns are provided inside the shell cavity, and column caps are provided on the hollow columns. Multiple mounting holes are provided on the shell bottom. The polishing rod is located inside the hollow columns and extends through the mounting holes to the outside of the shell bottom.

[0011] The diameter of the transition block is larger than the diameter of the mounting hole.

[0012] The gripping part is threadedly connected to the inner wall of the shell.

[0013] The mounting holes are evenly arranged on the bottom of the shell.

[0014] The abrasive disc is a sponge abrasive disc.

[0015] The housing is also provided with a limiting rod to prevent the grinding rod from retracting excessively.

[0016] The limiting rod includes a limiting rod body, one end of which is provided with a ball bearing and the other end is connected to the housing.

[0017] The limiting rod is provided in at least two parts and is arranged on the outside of the grinding rod.

[0018] Compared with the prior art, the advantages of this utility model are:

[0019] 1. The grinding device for curved surface grinding of this utility model has a simple structure, can be handheld and carried for grinding, has good portability, and is suitable for grinding on machine or on-site grinding scenarios, with strong applicability; by setting multiple independently telescopic grinding rods, each grinding rod can produce different deformations according to the different curvatures of the curved surface so that the grinding disc fits the surface to be ground, which has strong applicability, and due to the good fit, the transition after grinding is smoother and the grinding effect is better.

[0020] 2. The grinding device for curved surface grinding of this utility model, through the setting of double elastic elements, can increase the degree of freedom of the grinding disc, so that the grinding disc can better fit with the surface to be ground, resulting in better grinding effect.

[0021] 3. The grinding device for curved surface grinding of this utility model has a grinding rod placed inside a hollow column during grinding. The first elastic element is in contact with the column cap to achieve the retraction of the grinding rod. The structure is simple and reliable. When the grinding rod needs to be replaced, the column cap can be removed to take out the grinding rod, which is convenient for replacement.

[0022] 4. The grinding device for curved surface grinding of this utility model has a limiting rod that can limit the excessive shrinkage of the grinding rod, reduce over-grinding and unevenness, and achieve better grinding effect. Attached Figure Description

[0023] Figure 1 This is a front view of the grinding device for curved surface grinding according to this utility model.

[0024] Figure 2 This is a front view of the grinding device of this utility model used for grinding curved surfaces during the grinding process.

[0025] Figure 3 This is a schematic diagram of the housing structure in the grinding device for curved surface grinding according to this utility model.

[0026] Figure 4This is a schematic diagram of the shell bottom structure in the grinding device for curved surface grinding according to this utility model.

[0027] Figure 5 This is a front view of the gripping part in the grinding device for curved surface grinding according to this utility model.

[0028] Figure 6 This is a front view of the grinding rod in the grinding device for curved surface grinding according to this utility model.

[0029] Legend: 1. Shell; 11. Shell wall; 12. Shell bottom; 121. Mounting hole; 13. Shell cavity; 14. Hollow column; 2. Grinding rod; 21. Grinding rod body; 22. Grinding disc; 23. Transition block; 24. First elastic element; 25. Second elastic element; 3. Grip part; 4. Limiting rod; 41. Limiting rod body; 42. Ball bearing. Detailed Implementation

[0030] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., 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 utility model and simplifying the description, and 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. Therefore, they should not be construed as limitations on this utility model.

[0032] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0033] In this utility model, unless otherwise explicitly specified and limited, the terms "assembly," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0034] like Figures 1 to 6As shown, the polishing device for curved surface polishing in this embodiment includes a housing 1, one end of which is provided with a plurality of retractable polishing rods 2, and the other end of the housing 1 is provided with a gripping part 3.

[0035] The polishing rod 2 includes a polishing rod body 21, one end of which is provided with a polishing disc 22, and the other end is connected to the housing 1 through an elastic mechanism.

[0036] The grinding device for curved surfaces in this embodiment, when grinding and repairing curved composite material components, involves the operator holding the grip 3 and pressing down on the grinding device. The elastic mechanism of the grinding rods 2 contracts, with each grinding rod 2 contracting to varying degrees. Each grinding disc 22 then comes into close contact with the surface to be ground, forming a grinding arc similar to the surface. The grinding device is then moved back and forth to grind the curved composite material component. This grinding device for curved surfaces in this embodiment has a simple structure, can be carried by hand, is highly portable, and is suitable for both machine-based and on-site grinding scenarios, making it highly adaptable. By setting multiple independently telescopic grinding rods 2, each grinding rod 2 can deform differently according to the different curvatures of the surface, ensuring that the grinding disc 22 fits snugly against the surface to be ground. This enhances its adaptability, and due to the good fit, the transition after grinding is smoother, resulting in a better grinding effect.

[0037] Furthermore, such as Figure 6 As shown, in this embodiment, the elastic mechanism includes a transition block 23 and a first elastic element 24 and a second elastic element 25 disposed at both ends of the transition block 23. The first elastic element 24 is connected to the housing 1, and the second elastic element 25 is connected to the grinding rod body 21. The dual elastic elements increase the degree of freedom of the grinding disc 22, allowing it to better conform to the surface to be ground, resulting in better grinding performance. Preferably, in this embodiment, both the first elastic element 24 and the second elastic element 25 are springs.

[0038] Furthermore, such as Figure 3 and Figure 4 As shown, in this embodiment, the shell 1 includes a shell wall 11 and a shell bottom 12, which together form a shell cavity 13. Multiple hollow columns 14 are provided within the shell cavity 13, each with a column cap. Multiple mounting holes 121 are provided on the shell bottom 12. A grinding rod 2 is disposed within the hollow column 14 and extends through the mounting holes 121 to the outside of the shell bottom 12. During grinding, the grinding rod 2 is disposed within the hollow column 14, and the first elastic element 24 abuts against the column cap to achieve the retraction of the grinding rod 2. The structure is simple and reliable. When the grinding rod 2 needs to be replaced, the column cap can be removed to take out the grinding rod 2, making replacement convenient. Preferably, in this embodiment, the hollow column 14 is a hollow stud, and the column cap is a nut, facilitating disassembly and assembly.

[0039] Furthermore, such as Figure 4 and Figure 6 As shown, in this embodiment, the diameter of the transition block 23 is larger than the diameter of the mounting hole 121. The larger diameter of the transition block 23 ensures that the bottom of the housing 12 can limit the transition block 23, preventing the grinding rod 2 from falling out of the mounting hole 121, thus ensuring a reliable structure.

[0040] Furthermore, such as Figure 3 and Figure 5 As shown, in this embodiment, the gripping part 3 is threadedly connected to the inner wall of the shell wall 11.

[0041] Furthermore, such as Figure 4 As shown, in this embodiment, multiple mounting holes 121 are evenly arranged on the bottom of the shell 12. The multiple mounting holes 121 are evenly arranged on the bottom of the shell 12, so that multiple polishing rods 2 are also evenly arranged along the bottom of the shell 12. When the polishing disc 22 polishes, the polishing disc 22 covers the surface to be polished more comprehensively and evenly, and the polishing effect is better.

[0042] Furthermore, in this embodiment, the polishing pad 22 is a sponge polishing pad. The sponge polishing pad can elastically deform according to the curved surface of the component, resulting in better fit.

[0043] Preferably, in this embodiment, the grinding disc 22 is bonded to the grinding rod 21. During grinding, grinding discs 22 with different roughness can be selected for progressive grinding, resulting in a better grinding effect.

[0044] Furthermore, such as Figure 1 and Figure 2 As shown in this embodiment, the housing 1 is also provided with a limiting rod 4 for limiting the excessive retraction of the polishing rod 2. The limiting rod 4 can limit the excessive retraction of the polishing rod 2, reduce over-polishing and unevenness, and achieve a better polishing effect.

[0045] Furthermore, in this embodiment, the limiting rod 4 includes a limiting rod body 41, one end of which is provided with a ball bearing 42, and the other end is connected to the housing 1. By providing the ball bearing 42, it is convenient for the grinding device to move for grinding, and the structure is reasonable. Preferably, in this embodiment, the limiting rod body 41 is threadedly connected to the bottom of the housing 12.

[0046] Furthermore, in this embodiment, two limiting rods 4 are provided and arranged on the outside of the polishing rod 2. The two limiting rods 4 are symmetrically arranged on both sides of the polishing rod 2 to avoid interference between the limiting rods 4 and the polishing rod 2 during polishing.

[0047] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make many possible variations and modifications to the technical solution of the present utility model using the methods and techniques disclosed above, or modify it into equivalent embodiments with equivalent changes, without departing from the spirit and technical solution of the present utility model. Therefore, any simple modifications, equivalent substitutions, equivalent changes and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the content of the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A grinding device for curved surface grinding, characterized in that: Includes a housing (1), one end of which is provided with a plurality of retractable polishing rods (2), and the other end of which is provided with a grip (3); The polishing rod (2) includes a polishing rod body (21), one end of which is provided with a polishing disc (22), and the other end is connected to the housing (1) through an elastic mechanism.

2. The grinding device for curved surface grinding according to claim 1, characterized in that: The elastic mechanism includes a transition block (23) and a first elastic element (24) and a second elastic element (25) disposed at both ends of the transition block (23). The first elastic element (24) is connected to the housing (1), and the second elastic element (25) is connected to the grinding rod body (21).

3. The grinding device for curved surface grinding according to claim 2, characterized in that: The shell (1) includes a shell wall (11) and a shell bottom (12). The shell wall (11) and the shell bottom (12) enclose a shell cavity (13). A plurality of hollow columns (14) are provided in the shell cavity (13). A column cap is provided on the hollow column (14). A plurality of mounting holes (121) are provided on the shell bottom (12). The polishing rod (2) is located in the hollow column (14) and extends through the mounting holes (121) to the outside of the shell bottom (12).

4. The grinding apparatus for curved surface grinding according to claim 3, characterized in that: The diameter of the transition block (23) is larger than the diameter of the mounting hole (121).

5. The grinding apparatus for curved surface grinding according to claim 3, characterized in that: The gripping part (3) is threadedly connected to the inner wall of the shell wall (11).

6. The grinding apparatus for curved surface grinding according to claim 3, characterized in that: The plurality of mounting holes (121) are evenly arranged on the bottom of the shell (12).

7. The grinding apparatus for curved surface grinding according to claim 1, characterized in that: The polishing disc (22) is a sponge polishing disc.

8. The grinding apparatus for curved surface grinding according to any one of claims 1 to 7, characterized in that: The housing (1) is also provided with a limiting rod (4) for limiting the excessive retraction of the grinding rod (2).

9. The grinding apparatus for curved surface grinding according to claim 8, characterized in that: The limiting rod (4) includes a limiting rod body (41), one end of which is provided with a ball bearing (42), and the other end is connected to the housing (1).

10. The grinding apparatus for curved surface grinding according to claim 8, characterized in that: At least two limiting rods (4) are provided and arranged on the outside of the polishing rod (2).

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