Quick-change multi-face polishing wheel

Abstract

The utility model discloses a quick change multi -surface grinding wheel, it includes support body, outer peripheral buffer layer, bottom surface buffer layer, week surface polishing layer, bottom surface polishing layer and felt surface, the utility model discloses reasonable structure design provides integral structure support through support body, and outer peripheral buffer layer and bottom surface buffer layer utilize elastic buffer polishing pressure, make polishing layer better adhere to workpiece surface, and week surface polishing layer and bottom surface polishing layer can respectively polish the different surface of workpiece, realize disposable chucking can polish the multiple surface of workpiece, reduce sandpaper replacement and workpiece overturning frequency, save polishing time, improve efficiency, satisfy the automation production demand, and the magic tape felt surface formed by flannelette layer cooperates with the magic tape felt hook surface on the millstone pedestal, realizes the quick replacement of grinding wheel, can adapt the continuous operation demand of the automation production line, reduces manual intervention, promotes work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of polishing wheel technology, and in particular to a quick-change multi-faceted polishing wheel. Background Technology

[0002] When grinding workpieces, sandpaper is usually used, and the sandpaper is attached to the grinding disc base by Velcro. For example, utility model patent "CN212706168U", entitled "A Novel Grinding Disc", discloses a novel grinding disc, which includes a grinding disc base, Velcro, and sponge sandpaper. The back of the grinding disc base is provided with a screw for connecting to a grinding device. The Velcro is fixedly connected to the bottom of the grinding disc base, and the sponge sandpaper is glued to the Velcro.

[0003] Taking the sanding of a mobile phone mid-frame as an example, the mid-frame typically consists of three surfaces that need to be sanded: surface A (the upper small plane), surface B (the outer plane), and surface C (the lower small plane). During the sanding process, a large-size sandpaper (e.g., 3-inch, 75mm diameter) is usually used first to sand surface B, and then smaller-size sandpaper (1-inch or 2-inch) is used to sand surfaces A and C respectively. When sanding surface C, the mid-frame needs to be removed, flipped, and re-clamped. This method not only requires frequent sandpaper changes and workpiece flipping, extending the sanding time, but also heavily relies on manual operation, resulting in low efficiency and failing to meet the needs of automated production. Utility Model Content

[0004] To address the aforementioned shortcomings, the purpose of this utility model is to provide a quick-change multi-faceted grinding wheel with a reasonable structural design and the ability to grind multiple surfaces.

[0005] To achieve the above objectives, the technical solution provided by this utility model is as follows:

[0006] A quick-change multi-faceted grinding wheel includes a support body, an outer peripheral buffer layer, a bottom buffer layer, a peripheral grinding layer, a bottom grinding layer, and a felt surface. The support body is in the shape of a circular plate. The outer peripheral buffer layer is attached to the outer peripheral surface of the support body, the bottom buffer layer is attached to the bottom surface of the support body, the peripheral grinding layer is attached to the outer peripheral buffer layer, the bottom grinding layer is attached to the bottom surface of the support body, and the felt surface is attached to the top surface of the support body.

[0007] In a preferred embodiment of this invention, the support body is made of EVA, sponge, or polyurethane foam with a thickness of 7-10 mm, and its hardness is preferably 60-90 HC. This hardness range balances support and flexibility, giving the support body suitable rigidity and flexibility.

[0008] In a preferred embodiment of this invention, the outer peripheral buffer layer and the bottom buffer layer are made of EVA, sponge, or polyurethane foam with a thickness of 1-2 mm. The preferred hardness is 40–70 HC, used to adjust the hardness. The appropriate hardness can be selected according to requirements.

[0009] In a preferred embodiment of this invention, both the peripheral grinding layer and the bottom grinding layer are made of pyramid sandpaper or abrasive cloth. Different grit sizes can be selected according to the grinding surface requirements to meet different precision grinding needs.

[0010] As a preferred embodiment of this utility model, a positioning hole is provided at the center of the support body to facilitate quick and accurate installation.

[0011] The beneficial effects of this utility model are as follows: The structure of this utility model is reasonably designed, and the supporting body provides overall structural support; the outer peripheral buffer layer and the bottom buffer layer use elastic buffering to buffer the grinding pressure, so that the grinding layer can better fit the workpiece surface; the peripheral grinding layer and the bottom grinding layer can grind different surfaces of the workpiece separately, realizing that multiple surfaces of the workpiece can be ground in one clamping, reducing the number of sandpaper changes and workpiece flipping, saving grinding time, improving efficiency, and meeting the needs of automated production; moreover, the Velcro felt surface formed by the velvet layer cooperates with the Velcro hook surface on the grinding disc base to realize the quick replacement of the grinding wheel, which can adapt to the continuous operation needs of automated production lines, reduce manual intervention, and improve work efficiency. Attached Figure Description

[0012] Figure 1 This is a cross-sectional structural diagram of the present invention.

[0013] Figure 2 This is an exploded structural diagram of the present invention.

[0014] Figure 3 This is a schematic diagram of the structure of this utility model in use. Detailed Implementation

[0015] Example: See Figures 1-3 This utility model provides a quick-change multi-faceted grinding wheel, which includes a support body 1, an outer peripheral buffer layer 2, a bottom buffer layer 3, a peripheral grinding layer 4, a bottom grinding layer 5, a felt surface 6, and a grinding disc base 7.

[0016] The support body 1 is in the shape of a circular plate. When manufacturing the support body 1, a flexible material with a thickness greater than that of the workpiece to be ground is selected. The flexible material is preferably EVA, sponge, or polyurethane foam with a thickness of 7-10 mm. In this embodiment, the flexible material is preferably black EVA with a thickness of 8 mm. The hardness of the flexible material is preferably 60-90 HC. This hardness range balances support and flexibility, giving the support body suitable rigidity and flexibility. This ensures that the support body can transmit the driving force of the grinding equipment, avoiding excessive deformation of the support body during grinding, which would lead to insufficient grinding force; at the same time, it ensures that the support body has a certain degree of flexibility, conforming to the multi-faceted contours of the workpiece and avoiding rigid scratches. The flexible material is processed to obtain the support body 1, which is in the shape of a circular plate.

[0017] The outer peripheral buffer layer 2 is adhered to the outer peripheral surface of the support body, and the bottom buffer layer 3 is adhered to the bottom surface of the support body. Both the outer peripheral buffer layer 2 and the bottom buffer layer 3 are made of a buffer material with a certain degree of elasticity. The hardness of the buffer material is preferably 40–70HC. The buffer material is EVA, sponge, or polyurethane foam with a thickness of 1-2mm. Polyurethane foam is preferred as the buffer material. As an intermediate layer, polyurethane foam not only adjusts the hardness of the polished surface and improves the wrapping effect, but also significantly enhances the bonding strength between the polishing layer and EVA, acting as a "bridge" to effectively prevent the polishing layer from falling off during polishing. In actual use, the appropriate buffer material can be selected according to the required hardness to form the required elasticity buffer structure. During polishing, the buffer material uses its own elasticity to buffer the impact force generated during polishing, making the contact between the polishing material and the workpiece surface more uniform and gentle, avoiding damage to the workpiece surface or affecting the polishing effect due to excessive impact force.

[0018] During production, the outer peripheral buffer layer 2 and the bottom buffer layer 3 are bonded to the outer peripheral and bottom surfaces of the support body 1 using quick-drying adhesive. This fast bonding speed improves production efficiency, and the high bonding strength ensures the stability of the grinding wheel structure. During grinding, the quick-drying adhesive ensures a tight connection between the buffer material and the support body 1, allowing the buffer layer to stably perform its buffering function and preventing it from detaching due to grinding vibration. Preferably, the peripheral grinding layer 4 is adhered to the outer peripheral buffer layer, and the bottom grinding layer 5 is adhered to the bottom surface of the support body. The peripheral and bottom grinding layers are preferably made of pyramid sandpaper or abrasive cloth, and different grit sizes can be selected according to the required grinding surface to meet different precision requirements. During production, the peripheral grinding layer 4 and the bottom grinding layer 5 are preferably bonded to the outer peripheral buffer layer 2 or the bottom buffer layer 3 using water-based / oil-based thermosetting adhesives. This ensures a strong bond, adaptability to different grinding environments and working conditions, and guarantees the service life and grinding quality of the grinding wheel. During grinding, water-based / oil-based thermosetting adhesives ensure a tight bond between the grinding material and the buffer layer, allowing the grinding material to stably grind the workpiece surface without falling off due to friction. This stability is particularly important under conditions of high rotation speed and high pressure during side grinding.

[0019] The felt surface 6 is adhered to the top surface of the support body 1. Specifically, a felt surface with a fleece layer forming a Velcro closure is adhered to the top surface of the support body 1.

[0020] The grinding wheel base 7 can be made of metal. The upper surface of the grinding wheel base 7 is provided with a mounting rod 71 for connecting to the grinding equipment. A positioning boss 72 is located at the center of the lower surface of the grinding wheel base 7, and other locations on the lower surface are provided with hook surfaces 73 that correspond to the Velcro straps. A positioning hole 8, adapted to the positioning boss 72, is opened at the center of the support body 1. Through the cooperation of the positioning boss 72 and the positioning hole 8, and the cooperation of the felt surface 6 and the hook surface 73 of the Velcro straps, the grinding wheel and the grinding wheel base 7 can be quickly and accurately connected, improving the efficiency of automated production. At the same time, the positioning structure ensures the accuracy of the grinding wheel installation, reliably fixing the grinding wheel to the grinding wheel base 7, preventing it from falling off due to external forces, and ensuring concentricity of the grinding through axial positioning, thus improving the grinding quality.

[0021] In automated production, the grinding equipment drives the grinding disc base 7 to rotate via the mounting rod 71. The grinding disc base 7 transmits power to the grinding wheel through the positioning boss 72, positioning hole 8, and Velcro, enabling the grinding wheel to grind the workpiece. The quick-connect structure facilitates rapid replacement of the grinding wheel, and the positioning structure ensures accurate installation of the grinding wheel. Furthermore, the felt surface 6 of the Velcro formed by the fleece layer on the quick-change multi-faceted grinding wheel mates with the hook surface 73 of the Velcro on the grinding disc base 7, enabling rapid replacement of the grinding wheel. This adapts to the continuous operation requirements of automated production lines, reduces manual intervention, and improves work efficiency.

[0022] Taking the polishing of a mobile phone frame as an example, the mobile phone frame typically includes three surfaces that need polishing: surface A (upper small plane), surface B (outer plane), and surface C (lower small plane). This utility model's quick-change multi-faceted polishing wheel adds a peripheral polishing layer 4 to the side. The bottom polishing layer 5 can be used to polish surface B, while the peripheral polishing layer 4 can polish surfaces A and C. This enables continuous and efficient polishing of the three surfaces (A, B, and C) of the mobile phone frame on the same machine, without the need to change sandpaper or flip the workpiece mid-process, significantly reducing processing time, powerfully promoting the automation of the polishing process, and improving efficiency.

[0023] 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. The use of other grinding wheels that are the same as or similar to these wheels is within the protection scope of this utility model.

Claims

1. A quick-change multi-faceted grinding wheel, characterized in that, It includes a support body, an outer peripheral buffer layer and a bottom buffer layer, a peripheral polishing layer, a bottom polishing layer and a felt surface. The support body is in the shape of a circular plate. The outer peripheral buffer layer is attached to the outer peripheral surface of the support body. The bottom buffer layer is attached to the bottom surface of the support body. The peripheral polishing layer is attached to the outer peripheral buffer layer. The bottom polishing layer is attached to the bottom surface of the support body. The felt surface is attached to the top surface of the support body.

2. The quick-change multi-faceted grinding wheel according to claim 1, characterized in that, The supporting body is made of EVA, sponge or polyurethane foam with a thickness of 7-10mm.

3. The quick-change multi-faceted grinding wheel according to claim 1, characterized in that, The outer peripheral buffer layer is made of EVA, sponge, or polyurethane foam with a thickness of 1-2 mm.

4. The quick-change multi-faceted grinding wheel according to claim 1, characterized in that, The bottom buffer layer is made of EVA, sponge, or polyurethane foam with a thickness of 1-2 mm.

5. The quick-change multi-faceted grinding wheel according to claim 1, characterized in that, The peripheral polishing layer is made of pyramid sandpaper or abrasive cloth.

6. The quick-change multi-faceted grinding wheel according to claim 1, characterized in that, The bottom surface polishing layer is made of pyramid sandpaper or abrasive cloth.

7. The quick-change multi-faceted grinding wheel according to any one of claims 1-6, characterized in that, The support body has a positioning hole at its center.

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