Quickly replaceable grinding head

Abstract

The utility model discloses a quick-change polishing head, which comprises a polishing seat and a polishing tool, the polishing seat comprises a seat body and a rod body connected to the back surface of the seat body, the front surface of the seat body is recessed inwards to form a positioning cavity, a hook surface body of a magic tape is arranged in the positioning cavity, the polishing tool comprises a buffer pad and abrasive paper, and the buffer pad is arranged on the rod body. A rough surface body of a hook-and-loop fastener is arranged on the upper face of the buffer pad, the buffer pad is positioned in the positioning cavity through the attachment of the rough surface body and the hook surface body, the grinding tool is quickly and accurately adhered to the grinding seat through the positioning of the positioning cavity, and during grinding, the grinding tool is limited through the positioning cavity, so that the grinding tool is prevented from being damaged. The condition that the grinding tool shakes or falls off in the grinding process is prevented, and then the grinding stability and safety are improved; meanwhile, the abrasive paper covers the lower surface and the peripheral surface of the buffer pad, so that the tool can polish the plane and the side surface of the workpiece at the same time, and the application range is greatly expanded; in addition, the grinding tool is quickly connected and detached with the grinding seat through the hook-and-loop fastener, so that the grinding tool is conveniently and quickly replaced, and the working efficiency is effectively improved.

Description

Technical Field

[0001] This utility model belongs to the field of polishing technology, specifically relating to a quick-change polishing head. Background Technology

[0002] Chinese utility model patent publication number "202934465", entitled "A Grinding Tool for Ceramic Repair", discloses a grinding tool for ceramic repair, including sandpaper. The sandpaper is fleece-lined sandpaper, which is attached to a grinding wheel using Velcro. The grinding wheel is fixed to a connecting rod. While attaching the fleece-lined sandpaper to the grinding head with Velcro facilitates sandpaper replacement, the connecting rod lacks a quick-positioning mechanism for the fleece-lined sandpaper, making it prone to misalignment. Furthermore, it can only grind the flat surfaces of the workpiece, making it difficult to grind slightly protruding parts or sides, thus limiting its application range. Utility Model Content

[0003] To address the aforementioned shortcomings, the purpose of this utility model is to provide a grinding head with a reasonable structural design, convenient quick positioning, and wide range of applications that allows for rapid replacement.

[0004] To achieve the above objectives, the technical solution provided by this utility model is as follows:

[0005] A quick-change grinding head includes a grinding base and a grinding tool. The grinding base includes a seat body and a rod connected to the back of the seat body. The front of the seat body is recessed inward to form a positioning cavity. The positioning cavity is provided with a hook-and-loop fastener. The grinding tool includes a cushioning pad and sandpaper. The cushioning pad is provided with a rough hook-and-loop fastener on its upper surface. The cushioning pad is positioned in the positioning cavity by the rough hook-and-loop fastener and the hook-and-loop fastener, and the lower part of the cushioning pad extends out of the positioning cavity. The sandpaper covers the lower surface and outer peripheral surface of the cushioning pad.

[0006] In a preferred embodiment of this invention, the tail of the rod is radially narrowed to form a clamping portion. This facilitates quick positioning, insertion, or fixing onto equipment such as electric grinders, increasing the flexibility of use.

[0007] In a preferred embodiment of this invention, the cavity wall of the positioning cavity surrounds the upper periphery of the buffer pad. This ensures the stability of the grinding tool within the positioning cavity, prevents the grinding tool from shifting or falling off during use, and improves the precision and efficiency of grinding.

[0008] In a preferred embodiment of this invention, the sandpaper is wrapped around the lower outer circumferential surface of the buffer pad. This reduces material usage and lowers costs while still satisfying the requirements for grinding the sides of the workpiece.

[0009] In a preferred embodiment of this invention, the outer contour of the grinding tool is adapted to the shape of the positioning cavity. This provides good positioning of the grinding tool, preventing shaking or detachment during use and improving the stability and safety of grinding.

[0010] As a preferred embodiment of this utility model, the upper and lower edges of the base are chamfered. This not only improves the aesthetics of the tool but also reduces the risk of scratches to the workpiece or the user's hands during use, thus increasing safety.

[0011] As a preferred embodiment of this utility model, the base and the rod are integrally connected, which is firm and improves the overall strength of the tool.

[0012] As a preferred embodiment of this utility model, the buffer pad is an EVA pad, a rubber pad, or a high-density sponge pad, which has a certain elasticity and good polishing effect.

[0013] The beneficial effects of this utility model are as follows: The utility model has a reasonable structural design. Through the positioning cavity, the grinding tool can be quickly and accurately adhered to the grinding base. Furthermore, during grinding, the positioning cavity limits the movement of the grinding tool, preventing it from shaking or falling off, thus improving the stability and safety of the grinding process. Simultaneously, the sandpaper covering the lower and outer surfaces of the buffer pad allows the tool to simultaneously grind the flat and side surfaces of the workpiece, greatly expanding its application range. In addition, the grinding tool uses Velcro for quick connection and disassembly to the grinding base, facilitating rapid tool replacement and effectively improving work efficiency.

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is an exploded structural diagram of the present invention.

[0017] Figure 3 This is a schematic diagram of the structure of the grinding tool in this utility model. Detailed Implementation

[0018] Example: See Figures 1 to 3 This embodiment provides a quick-change grinding head, which includes a grinding base 1 and a grinding tool 2.

[0019] The grinding base 1 includes a base body 11 and a rod body 12 connected to the back of the base body 11. The grinding base 1 is preferably made of aluminum alloy. The base body 11 and the rod body 12 are preferably integrally connected, providing a strong connection and improving the overall strength of the tool. Preferably, the upper and lower edges of the base body 11 are chamfered. This not only improves the tool's aesthetics but also reduces the risk of scratches to the workpiece or the user's hands during use, increasing safety. The tail of the rod body 12 tapers radially to form a clamping part. This facilitates quick positioning, insertion, or fixing to equipment such as electric grinders, increasing the flexibility of use.

[0020] The front of the base 11 is recessed inward to form a positioning cavity 111, and the positioning cavity 111 is provided with a hook-and-loop fastener 13. The outer contour of the grinding tool 2 is adapted to the shape of the positioning cavity 111. This provides good positioning of the grinding tool 2, preventing shaking or falling off during use, and improving the stability and safety of grinding.

[0021] The abrasive tool 2 includes a buffer pad 21 and sandpaper 22. The buffer pad 21 can be an EVA pad, a rubber pad, or a high-density sponge pad, possessing a certain degree of elasticity to enhance the sanding effect. A hook-and-loop fastener 23 is provided on the top of the buffer pad 21. The buffer pad 21 is positioned within the positioning cavity 111 by the hook-and-loop fastener 23 and the hook-and-loop fastener 13 adhering to each other. The lower part of the buffer pad 21 extends out of the positioning cavity 111, meaning the cavity wall of the positioning cavity 111 surrounds the upper periphery of the buffer pad 21. This ensures the stability of the abrasive tool 2 within the positioning cavity 111, preventing displacement or detachment during use and improving sanding accuracy and efficiency.

[0022] The sandpaper 22 covers the lower surface and outer peripheral surface of the buffer pad 21. Preferably, the sandpaper 22 only covers the lower outer peripheral surface of the buffer pad 21. This reduces material usage and lowers costs while still satisfying the requirements for grinding the sides of the workpiece.

[0023] In use, the positioning cavity 111 allows the grinding tool 2 to be quickly and accurately adhered to the grinding base 1.

[0024] Furthermore, during grinding, the positioning cavity 111 limits the movement of the grinding wheel 2, effectively preventing it from shaking or falling off, thus improving the stability and safety of the grinding process. Also, because the sandpaper 22 covers the lower and outer surfaces of the buffer pad 21, the tool can simultaneously grind both the flat and side surfaces of the workpiece, making it widely applicable. When the grinding wheel 2 needs to be replaced, simply pull it forcefully to separate the hook-shaped body 13 from the rough-faced body 23, allowing for quick and easy disassembly.

[0025] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to this utility model should also fall within the protection scope of the claims of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model. As described in the above embodiments of this utility model, other tools obtained using the same or similar structures are all within the protection scope of this utility model.

Claims

1. A quick change grinding head comprising a grinding shoe and a grinding element, characterized in that, The base comprises a base body and a rod body connected to the back of the base body, the front of the base body is inwardly recessed to form a positioning cavity, the positioning cavity is provided with a hook surface body of a magic tape, the abrasive tool comprises a buffer pad and sandpaper, the upper surface of the buffer pad is provided with a loop surface body of a magic tape, the buffer pad is positioned in the positioning cavity by the loop surface body and the hook surface body, and the lower part of the buffer pad extends out of the positioning cavity, and the sandpaper is wrapped on the lower surface and the outer peripheral surface of the buffer pad.

2. The quick-change polishing head of claim 1, wherein, The tail of the rod body is radially reduced to form a clamping part.

3. The quick-change polishing head of claim 1, wherein, The cavity wall of the positioning cavity surrounds the upper peripheral position of the buffer pad.

4. The quick-change polishing head of claim 1, wherein, The sandpaper is wrapped on the lower peripheral surface of the buffer pad.

5. The quick-change polishing head of claim 1, wherein, The abrasive tool is matched with the shape of the positioning cavity.

6. The quick-change polishing head of claim 1, wherein, The upper and lower edges of the base body are chamfered.

7. The quick-change polishing head of claim 1, wherein, The base body and the rod body are integrally connected.

8. A quick change polishing head according to any one of claims 1-7, characterized in that, The buffer pad is an EVA pad body, a rubber pad body or a high-density sponge pad body.

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