A polishing nylon wheel with a layered structure

Abstract

The utility model discloses a polishing nylon wheel with layered structure belongs to the technical field of polishing tool, this polishing nylon wheel includes polishing wheel main part and the polishing assembly fixed in its outer periphery, and the polishing assembly is multilayer composite structure, and the radiality includes successively from outside to inside: the coarse grinding unit that is composed of first abrasive layer and first base layer, the fine grinding unit that is composed of second abrasive layer and second base layer and the super fine grinding unit that is composed of third abrasive layer and third base layer. Among them, the second base layer can be provided with honeycomb perforation, and the third base layer surface can carry out the fluffing treatment. The utility model discloses through the layered structure design of integration, will coarse grinding, fine grinding, super fine grinding function in one, solved the single -function of existing polishing wheel, and the problem of low efficiency caused by the need frequent replacement, has once clamping complete whole process polishing, and the effect of good heat dissipation, and the effect of giving consideration to rigidity and flexibility.

Description

Technical Field

[0001] This utility model relates to the field of polishing tool technology, and in particular to a polishing nylon wheel with a layered structure. Background Technology

[0002] In modern industrial manufacturing, polishing wheels are an important surface treatment tool, widely used for grinding and polishing metal or non-metal workpieces to improve their surface smoothness and aesthetics. A complete, high-quality surface polishing process is usually not completed in a single step, but requires multiple progressive stages from rough grinding to fine grinding to final polishing.

[0003] In the initial rough grinding stage, a polishing wheel with high cutting efficiency is required to quickly remove oxide scale, burrs, and deep scratches from the workpiece surface. This requires the polishing wheel to have high hardness and rigid support. In the subsequent fine grinding and polishing stages, a polishing wheel with finer abrasive and softer texture is needed to eliminate traces left by the previous process and ultimately achieve a mirror finish. This requires the polishing wheel to have good elasticity and flexibility to fully conform to the micro-contours of the workpiece and prevent new scratches from forming.

[0004] The polishing wheels in the existing technology are usually single-function, and their structure and materials can only meet the needs of a specific polishing stage. This means that in actual operation, in order to complete the polishing of a workpiece, the operator must frequently stop the equipment and change different types of polishing wheels such as rough grinding, fine grinding, and polishing in sequence. This process of changing wheels multiple times not only significantly increases auxiliary time and greatly reduces the overall production efficiency, but also makes it easy for positioning errors to occur during the process of workpiece being transferred or re-clamped multiple times, affecting the consistency of the final processing quality.

[0005] Therefore, this invention proposes a polishing nylon wheel with a layered structure to overcome the shortcomings of the prior art. Utility Model Content

[0006] To overcome the above shortcomings, this utility model provides a vehicle start switch device, which aims to improve the problem that the polishing wheel in the prior art has a single function and needs to be frequently replaced during the processing to complete the entire process from rough grinding to fine polishing, resulting in low production efficiency and affecting the consistency of processing.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a polishing nylon wheel with a layered structure, comprising a polishing wheel body and a polishing assembly fixed to the outer periphery of the polishing wheel body, wherein a coarse grinding unit, a fine grinding unit and an ultra-fine grinding unit are sequentially stacked and combined in a radial direction from the outside to the inside.

[0008] The coarse grinding unit consists of a first abrasive layer and a first base layer; the fine grinding unit consists of a second abrasive layer and a second base layer; and the ultra-fine grinding unit consists of a third abrasive layer and a third base layer.

[0009] Preferably, the fine grinding unit is stacked and composited inside the coarse grinding unit, and the ultra-fine grinding unit is stacked and composited inside the fine grinding unit.

[0010] Preferably, the abrasive in the first abrasive layer is a composite abrasive of brown fused alumina and silicon carbide; the material of the first base layer is a woven fabric composed of PA66 nylon and glass fiber.

[0011] Preferably, the abrasive in the second abrasive layer is high-purity white corundum; the material of the second base layer is a nonwoven fabric composed of PA6 nylon and carbon fiber.

[0012] Preferably, the second substrate layer has a plurality of honeycomb-shaped through holes.

[0013] Preferably, the abrasive in the third abrasive layer is a composite abrasive of ultrafine white corundum and nano-silica; the material of the third base layer is PA12 flexible nylon and polyurethane fiber.

[0014] Preferably, the surface of the third base layer is treated with a fluffing process.

[0015] Preferably, the polishing nylon wheel with a layered structure further includes an annular buffer ring, which is disposed in the inner hole of the polishing wheel body.

[0016] This utility model has the following beneficial effects:

[0017] 1. In this utility model, by integrating the coarse grinding unit, fine grinding unit and ultra-fine grinding unit into the same polishing component, a composite structure with radially layered arrangement is formed. This solves the problem in the prior art that the polishing wheel has a single function and needs to be frequently replaced to complete the complete process, resulting in low processing efficiency and affecting the consistency of workpiece processing. It achieves the realization of the entire process from preliminary grinding to mirror polishing in a single clamping, which significantly improves production efficiency and ensures the stability of product quality.

[0018] 2. In this utility model, by using an elastic non-woven fabric material in the base layer of the fine grinding unit and setting honeycomb-shaped through holes therein, the problems of poor heat dissipation of traditional polishing wheels during high-speed grinding, which easily leads to local overheating and discoloration of the workpiece, and the rigid structure making it difficult to fit the micro-contour of the workpiece, resulting in uneven grinding, are solved. This achieves the effect of active heat dissipation and prevention of workpiece burns, while enhancing the adhesion of the abrasive layer to the workpiece surface, making the grinding more uniform and delicate. Attached Figure Description

[0019] Figure 1 This is a perspective view of a polishing nylon wheel with a layered structure proposed in this utility model;

[0020] Figure 2 This is a schematic diagram of a polishing assembly with a layered structure for a polishing nylon wheel, as proposed in this utility model.

[0021] Figure 3 This is a schematic diagram of the first abrasive layer of a polishing nylon wheel with a layered structure proposed in this utility model;

[0022] Figure 4 This is a schematic diagram of the second abrasive layer track of a polishing nylon wheel with a layered structure proposed in this utility model;

[0023] Figure 5 This is a schematic diagram of the third abrasive layer of a polishing nylon wheel with a layered structure proposed in this utility model.

[0024] Legend:

[0025] 1. Polishing wheel body; 2. Annular buffer ring; 3. Polishing assembly; 301. First abrasive layer; 302. First base layer; 303. Second abrasive layer; 304. Second base layer; 305. Third abrasive layer; 306. Third base layer. Detailed Implementation

[0026] 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.

[0027] Reference Figures 1-5 The present invention provides an embodiment of a polishing nylon wheel with a layered structure, which aims to solve the problem that existing polishing wheels have a single function and the structure cannot meet the requirements of rigid support, flexible fit and heat dissipation.

[0028] The polishing nylon wheel with a layered structure includes a polishing wheel body 1, a polishing assembly 3 fixedly connected to the outer periphery of the polishing wheel body 1, and an annular buffer ring 2 disposed in the inner hole of the polishing wheel body 1. The polishing wheel body 1 is used to connect to the spindle of the polishing equipment and provide rotational support for the polishing assembly 3. The polishing assembly 3 is used as an actuator to perform staged polishing on the surface of the workpiece. The polishing assembly 3 is a multi-layer composite structure, which includes a coarse grinding unit, a fine grinding unit and an ultra-fine grinding unit in a radial direction from the outside to the inside. The fine grinding unit is stacked and composited on the inner side of the coarse grinding unit, and the ultra-fine grinding unit is stacked and composited on the inner side of the fine grinding unit, together forming an integral polishing ring. The coarse grinding unit is composed of a first abrasive layer 301 and a first base layer 302, the fine grinding unit is composed of a second abrasive layer 303 and a second base layer 304, and the ultra-fine grinding unit is composed of a third abrasive layer 305 and a third base layer 306.

[0029] The coarse grinding unit, as the outermost layer, directly contacts the initial surface of the workpiece. Its first abrasive layer 301 uses a composite abrasive of brown corundum and silicon carbide, and the first base layer 302 uses a woven fabric material composed of PA66 nylon and glass fiber. The first abrasive layer 301 and the first base layer 302 are fixedly connected by adhesive. This woven fabric structure provides high rigidity support for the first abrasive layer 301, ensuring that it is not easy to break during high-speed cutting.

[0030] The fine grinding unit is located inside the coarse grinding unit. Its second abrasive layer 303 is made of high-purity white corundum abrasive, and the second base layer 304 is made of non-woven fabric composed of PA6 nylon and carbon fiber. The second abrasive layer 303 and the second base layer 304 are fixedly connected by adhesive. This non-woven fabric structure gives the fine grinding unit good elasticity, enabling it to conform to the micro-contour of the workpiece. In addition, the second base layer 304 is provided with a plurality of honeycomb-shaped through holes, which form an effective heat dissipation air channel when the polishing wheel rotates.

[0031] The ultra-fine grinding unit, as the innermost layer, is used for the final mirror polishing. Its third abrasive layer 305 uses a composite abrasive of ultra-fine white corundum and nano-silica, and the third base layer 306 is made of PA12 flexible nylon and polyurethane fiber. The third abrasive layer 305 and the third base layer 306 are fixedly connected by adhesive, and the surface of the third base layer 306 is treated with a furry texture. This ultra-flexible and furry base structure can not only fit the fine bumps and depressions of the workpiece perfectly, but also buffer the contact between the abrasive and the workpiece to prevent scratches.

[0032] The fine grinding unit is laminated onto the inner surface of the coarse grinding unit by hot pressing or adhesive bonding, and the ultra-fine grinding unit is similarly laminated onto the inner surface of the fine grinding unit by hot pressing or adhesive bonding, forming a seamless integral ring structure.

[0033] In order to efficiently dissipate frictional heat during the fine grinding stage to avoid burning of the workpiece surface, a plurality of honeycomb-shaped through holes are uniformly opened inside the second base layer 304, extending through its axial thickness. When the polishing wheel rotates at high speed, these through holes can guide airflow through them, thereby actively carrying away heat.

[0034] The surface of the third base layer 306 facing the workpiece is treated with a fluffing process to form a dense and soft fiber layer that provides excellent cushioning and fit when in contact with the workpiece.

[0035] The polishing nylon wheel also includes an annular buffer ring 2, which is made of elastic rubber or polyurethane material and is tightly fitted into the inner hole of the polishing wheel body 1 to absorb and attenuate high-frequency vibrations from the equipment.

[0036] Working principle: When using this polishing nylon wheel, the polishing wheel body 1 is driven to rotate at high speed by the polishing equipment, which in turn drives the entire polishing assembly 3 to rotate synchronously. The annular buffer ring 2 absorbs and reduces the vibration from the main shaft of the equipment during this process, thereby providing a stable working environment for the polishing assembly 3.

[0037] In the initial stage of the polishing process, the outermost coarse grinding unit first contacts the workpiece surface. Its first abrasive layer 301, with the high cutting force of the brown corundum and silicon carbide composite abrasive, quickly removes the oxide scale, burrs or deep scratches on the workpiece surface. Meanwhile, the first base layer 302, which provides support for it, uses its PA66 nylon and glass fiber woven fabric structure to ensure that the first abrasive layer 301 is structurally stable and does not crack under high-speed impact.

[0038] As polishing progresses, the fine grinding unit begins to act on the workpiece surface. The high-purity white corundum abrasive in its second abrasive layer 303 corrects and smooths the marks left by the rough grinding stage. At the same time, the second base layer 304, which serves as its carrier, utilizes the elasticity of its PA6 nylon and carbon fiber nonwoven fabric to allow the second abrasive layer 303 to conform well to the micro-unevenness of the workpiece. Furthermore, the honeycomb-shaped through holes inside the second base layer 304 form air channels under high-speed rotation, effectively dissipating the heat generated by friction and preventing overheating damage to the workpiece.

[0039] In the final stage of polishing, the innermost ultra-fine grinding unit performs the final fine treatment on the workpiece surface. The ultra-fine white corundum and nano-silica composite abrasive in its third abrasive layer 305 performs nano-level grinding on the surface to achieve a mirror effect. The PA12 flexible nylon and polyurethane fiber material of the third base layer 306 and its surface furring treatment provide extreme flexibility and cushioning performance, enabling it to conform to the finest surface contours and avoid scratches. Through the sequential synergistic action of the three units of coarse grinding, fine grinding and ultra-fine grinding, this utility model completes the entire process from efficient removal of excess material to high-precision mirror polishing in a single clamping, solving the problems of single function and low efficiency of polishing wheels in the prior art.

Claims

1. A polishing nylon wheel with a layered structure, comprising: The polishing wheel body (1) and the polishing assembly (3) fixed to the outer periphery of the polishing wheel body (1) are characterized in that: The polishing assembly (3) is a multi-layer composite structure, which includes, from the outside to the inside in the radial direction, a coarse grinding unit composed of a first abrasive layer (301) and a first base layer (302); A fine grinding unit consisting of a second abrasive layer (303) and a second base layer (304); and an ultra-fine grinding unit consisting of a third abrasive layer (305) and a third base layer (306).

2. The polishing nylon wheel with a layered structure according to claim 1, characterized in that, The fine grinding unit is stacked and composited inside the coarse grinding unit, and the ultra-fine grinding unit is stacked and composited inside the fine grinding unit.

3. The polishing nylon wheel with a layered structure according to claim 1, characterized in that, The abrasive in the first abrasive layer (301) is a composite abrasive of brown corundum and silicon carbide; the material of the first base layer (302) is a woven fabric composed of PA66 nylon and glass fiber.

4. The polishing nylon wheel with a layered structure according to claim 1, characterized in that, The abrasive in the second abrasive layer (303) is high-purity white corundum; the material of the second base layer (304) is a nonwoven fabric composed of PA6 nylon and carbon fiber.

5. The polishing nylon wheel with a layered structure according to claim 4, characterized in that, The second base layer (304) has a plurality of honeycomb-shaped through holes.

6. The polishing nylon wheel with a layered structure according to claim 1 or 2, characterized in that, The abrasive in the third abrasive layer (305) is a composite abrasive of ultrafine white corundum and nano-silica; the material of the third base layer (306) is PA12 flexible nylon and polyurethane fiber.

7. The polishing nylon wheel with a layered structure according to claim 6, characterized in that, The surface of the third base layer (306) is treated with a fluffing process.

8. The polishing nylon wheel with a layered structure according to claim 1, characterized in that, It also includes an annular buffer ring (2), which is disposed in the inner hole of the polishing wheel body (1).

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