Anti-drop block non-filled end face grinding wheel

Abstract

The utility model discloses a non - filled end face grinding wheel of anti - unthreaded block, including base body and grinding wheel piece, the base body surface is equipped with the groove, the groove is equipped with the first adhesive layer in addition to the base body surface, the grinding wheel piece is located the first adhesive layer surface, be equipped with the second adhesive layer between the grinding wheel piece and the first adhesive layer. The utility model discloses a non - filled end face grinding wheel of anti - unthreaded block simple structure, practicality is strong, through the improvement base body surface structure and the setting adhesive layer, the adhesion between the grinding wheel piece and the base body has been improved significantly, and can realize the discharge of waste grinding fluid, avoids the scratch workpiece surface.

Description

Technical Field

[0001] This utility model relates to the field of grinding tool technology, and in particular to a non-filled end face grinding wheel with anti-blocking. Background Technology

[0002] Powder metallurgy products require machining after hot pressing, sintering, and steam treatment. End face grinding is one of the steps to improve the surface quality of powder metallurgy products.

[0003] In existing technologies, face grinding wheels are generally manufactured by bonding individual grinding wheel blocks. These blocks are typically circular, hexagonal, or other shapes, with a certain gap between them depending on the grinding requirements. To prevent the grinding wheel blocks from lifting or falling off during the grinding process and scratching the workpiece, resin glue is usually filled into the gaps. However, filling with resin glue reduces the sharpness of the face grinding wheel and hinders chip removal, causing some chips to adhere to the wheel surface, thus affecting grinding efficiency and even scratching the workpiece. Therefore, to address these problems and technical requirements, it is necessary to develop a new face grinding wheel structure to improve the adhesion between the grinding wheel blocks and the substrate without affecting the workpiece grinding effect. Summary of the Invention

[0004] The purpose of this utility model is to provide a non-filled end face grinding wheel with anti-detachment block. It has a simple structure and strong practicality. By improving the structure of the substrate surface and setting an adhesive layer, the adhesion between the grinding wheel block and the substrate is significantly improved, and the grinding waste liquid can be effectively discharged to avoid scratching the workpiece surface.

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

[0006] A non-filled end face grinding wheel with anti-detachment block includes a base and a grinding wheel block. The surface of the base is provided with a groove. A first adhesive layer is provided in the groove and on the surface of the base. The grinding wheel block is located on the surface of the first adhesive layer. A second adhesive layer is provided between the grinding wheel block and the first adhesive layer.

[0007] In this invention, the substrate has a ring-shaped structure with inner and outer edges. A locking effect is achieved by slotting the substrate surface and applying a first adhesive layer within the slot and on the substrate surface. In actual production, a slot is first slotted on the substrate surface and a first adhesive layer is applied and filled. After the first adhesive layer cures, it is polished to ensure a smooth surface. Then, a second adhesive layer is applied to the surface of the grinding wheel and bonded to the first adhesive layer. After conventional curing, the grinding wheel and substrate are firmly bonded, effectively preventing the grinding wheel from lifting or falling off during the grinding process.

[0008] Preferably, the substrate is a metal substrate; the first adhesive layer is a waterproof adhesive layer. In this invention, the substrate can be a steel substrate, an aluminum substrate, or a cast iron substrate, and the specific material is selected according to actual needs. To prevent localized heating of the grinding wheel during the grinding process, which would affect the grinding effect, the grinding wheel is usually rinsed with coolant (such as water) during the grinding process. The first adhesive layer is set as a waterproof adhesive layer, which can improve the stability of the first adhesive layer and also allow grinding waste liquid to be discharged. The material of the waterproof adhesive is an existing product. For example, in practical applications, the material of the waterproof adhesive layer can be commercially available silicone gel, which has waterproof and hydrophobic properties.

[0009] Preferably, the thickness of the first adhesive layer is 0.2~2mm, and the thickness of the first adhesive layer refers to the distance between the upper surface of the first adhesive layer and the upper surface of the substrate.

[0010] In this invention, the material of the second adhesive layer is a conventional structural adhesive in the art, which can be one or more of epoxy resin adhesive, phenolic resin adhesive, and polyurethane adhesive. Its selection and use do not affect the understanding of the technical effect of this invention by those skilled in the art, as long as it can bond the grinding wheel block.

[0011] Preferably, the groove is a ring structure, and there are multiple ring structure grooves distributed in a concentric circle manner; as is common knowledge, the centers of the multiple ring structure grooves and the base coincide.

[0012] More preferably, the width of the groove is 1~10mm and the depth is 0.5~2mm; the distance between adjacent grooves is 2~10mm.

[0013] Preferably, the longitudinal section of the groove is trapezoidal. Designing the longitudinal section of the groove as trapezoidal can further enhance the bonding effect between the first adhesive layer and the substrate.

[0014] Furthermore, the number of grinding wheel blocks is multiple; the thickness of each grinding wheel block is 5-10 mm; and a gap is provided between adjacent grinding wheel blocks. More preferably, the gap between adjacent grinding wheel blocks is 1-5 mm. No additional chip removal groove is needed; the grinding chips generated can be discharged by utilizing the gap between adjacent grinding wheel blocks.

[0015] Due to the application of the above technical solutions, the non-filled end-face grinding wheel of this utility model with anti-detachment blocks has the following advantages: This utility model increases the locking effect between the first adhesive layer and the substrate by slotting the substrate surface, and avoids the storage of grinding waste liquid in the exposed slot; furthermore, the grinding wheel block is bonded to the surface of the first adhesive layer by the second adhesive layer, and there is a good bonding force between the two adhesive layers. This is an inherent property of organic adhesives, so that the substrate and the grinding wheel block are stably bonded to each other under the bridging effect of the two adhesive layers, improving the adhesion between the grinding wheel block and the substrate, solving the problem of easy lifting and falling off of end-face grinding wheels in the prior art, making the grinding process safer and more efficient, and effectively ensuring the processing quality of the workpiece; in addition, there is a gap between adjacent grinding wheel blocks, which not only ensures the original sharpness of the end-face grinding wheel, but also removes chips. Attached Figure Description

[0016] Figure 1 This is a top view of the non-filled end face grinding wheel of the anti-detachment block in Embodiment 1.

[0017] Figure 2 This is a top view of the substrate in Embodiment 1.

[0018] Figure 3 This is a partial longitudinal cross-sectional schematic diagram of the grinding wheel on the non-filled end face of the anti-detachment block in Example 1.

[0019] Figure 4 This is a partial longitudinal cross-sectional view of the grinding wheel on the non-filled end face of the anti-detachment block in Example 2.

[0020] The components are: 1. substrate, 2. grinding wheel block, 3. groove, 4. first adhesive layer, and 5. second adhesive layer. Detailed Implementation

[0021] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings and preferred embodiments.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. For example, terms such as “length,” “width,” “upper,” “lower,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer” indicate orientations or positions based on the orientations or positions shown in the accompanying drawings and are merely for ease of description and should not be construed as limiting the invention.

[0023] The substrate, grinding wheel block, and the materials of the first and second adhesive layers used in this invention are all existing products. The specific products used do not affect the understanding of the structure and technical effects of this invention by those skilled in the art; as long as they achieve bonding, that is sufficient. The inventiveness of this invention lies in improving the surface structure of the substrate and adding adhesive layers, thereby enhancing the adhesion between the grinding wheel block and the substrate, and enabling effective drainage of grinding waste fluid, thus preventing scratches on the workpiece surface.

[0024] like Figures 1 to 3 As shown:

[0025] A non-filled end face grinding wheel with anti-detachment block includes a base 1 and a grinding wheel block 2. The surface of the base is provided with a groove 3. A first adhesive layer 4 is provided in the groove and on the surface of the base. The grinding wheel block is located on the surface of the first adhesive layer. A second adhesive layer 5 is provided between the grinding wheel block and the first adhesive layer.

[0026] In this embodiment, the substrate is a ring-shaped steel substrate with an outer diameter of 1000mm, an inner diameter of 350mm, and a thickness of 50mm.

[0027] In this embodiment, the material of the first adhesive layer is silicone, and the thickness of the adhesive layer is 1mm. It is waterproof and facilitates chip removal.

[0028] In this embodiment, the material of the second adhesive layer is epoxy resin, which has good adhesion to the first adhesive layer and the grinding wheel block.

[0029] In this embodiment, the grooves are annular structures distributed in concentric circles; each groove is 5mm wide and 1mm deep; the distance between adjacent grooves is 5mm. For simplicity, Figure 2 The diagram is illustrated by six annular grooves.

[0030] In this embodiment, there are multiple grinding wheel blocks, each with a regular hexagonal shape and a side length of 25mm. The thickness of the grinding wheel block is 5mm, and there is a 2mm gap between adjacent grinding wheel blocks.

[0031] The method for preparing the non-filled end face grinding wheel of the above-mentioned anti-detachment block is a conventional method: first, annular grooves distributed in a concentric circle pattern are opened on the surface of the substrate, then silicone water is filled in the grooves and coated on the surface of the substrate. After curing at room temperature, conventional grinding is performed to obtain a first adhesive layer with a thickness of 1 mm. The grinding wheel block is evenly coated with epoxy resin adhesive and bonded to the first adhesive layer. After curing at room temperature, the non-filled end face grinding wheel of the anti-detachment block is obtained. Example 2

[0032] Based on Embodiment 1, the difference in this embodiment is that the longitudinal section of the groove is a trapezoidal structure, see [link to embodiment 1]. Figure 4 Everything else is the same. The longitudinal section of the groove is designed as a trapezoidal structure, which can further increase the adhesion area of ​​the first adhesive layer to the substrate and improve the mechanical locking effect.

[0033] Comparison Example

[0034] Commercially available non-filled end face grinding wheels (the grinding wheel block is directly bonded to the substrate using conventional adhesives, such as epoxy resin adhesives). Comparative Example 1

[0035] Based on Example 1, the first adhesive layer is omitted, and the grinding wheel block is directly bonded to the substrate with epoxy resin adhesive, and the rest is the same.

[0036] Application Experiment

[0037] The end-face grinding wheels (of the same specifications) of Example 1, the Control Example, and Comparative Example 1 were respectively installed on a Stahli double-end-face grinding machine, and the same batch of powder metallurgy flange workpieces were processed according to conventional methods. The non-filled end-face grinding wheel with anti-detachment block in Example 1 can continuously and stably process workpieces. There is no case of grinding wheel block lifting or falling off within the normal service life of the grinding wheel. The quality of the ground workpieces is qualified, and there is no surface scratch, which meets customer requirements. In contrast, the existing commercially available non-filled end-face grinding wheels have experienced grinding wheel block lifting and falling off during the grinding process, which requires the removal and replacement of the grinding wheel, affecting grinding efficiency and production plan. As for the end-face grinding wheel of Comparative Example 1, some slag remains in the groove on the base surface and cannot be discharged in time. It also adheres to the surface of the grinding wheel block, which may scratch the surface of the workpiece.

[0038] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the principle of the present utility model, and these should also be considered to fall within the protection scope of the present utility model.

Claims

1. A non-filled end-face grinding wheel with anti-detachment block, comprising a base and a grinding wheel block, characterized in that: The substrate surface is provided with a groove; a first adhesive layer is provided in the groove and on the substrate surface; the grinding wheel block is located on the surface of the first adhesive layer; a second adhesive layer is provided between the grinding wheel block and the first adhesive layer.

2. The non-filled end face grinding wheel for the anti-detachment block according to claim 1, characterized in that: The substrate is a metal substrate; the first adhesive layer is a waterproof adhesive layer.

3. The non-filled end face grinding wheel for the anti-detachment block according to claim 1, characterized in that: The thickness of the first adhesive layer is 0.2~2mm.

4. The non-filled end face grinding wheel for the anti-detachment block according to claim 1, characterized in that: The grooves are annular structures and there are multiple of them.

5. The non-filled end face grinding wheel for the anti-detachment block according to claim 4, characterized in that: The groove has a width of 1~10mm and a depth of 0.5~2mm.

6. The non-filled end face grinding wheel for the anti-detachment block according to claim 4, characterized in that: The distance between adjacent slots is 2~10mm.

7. The non-filled end face grinding wheel for the anti-detachment block according to claim 1, characterized in that: The longitudinal section of the groove is trapezoidal.

8. The non-filled end face grinding wheel for the anti-detachment block according to claim 1, characterized in that: The number of grinding wheel blocks is multiple.

9. The non-filled end face grinding wheel for the anti-detachment block according to claim 8, characterized in that: The thickness of the grinding wheel block is 5~10mm.

10. The non-filled end face grinding wheel for the anti-detachment block according to claim 8, characterized in that: There is a gap between adjacent grinding wheel blocks.

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