Finishing-free grinding wheel

Abstract

The utility model relates to a dressing-free grinding wheel which comprises a grinding wheel base body. The composite grinding body is wound on the side face of the grinding wheel base body and comprises a plurality of main grinding bodies and a plurality of auxiliary grinding bodies, the main grinding bodies are connected with the auxiliary grinding bodies, and the axial projections of the main grinding bodies and the auxiliary grinding bodies relative to the grinding wheel base body are at least partially overlapped. According to the dressing-free grinding wheel, the self-sharpening performance of the surface of the composite grinding body can be guaranteed, and then the effect that the grinding wheel is frequently dressed can be avoided.

Description

Technical Field

[0001] This application relates to the field of material grinding, specifically to a dressing-free grinding wheel. Background Technology

[0002] Existing grinding wheels use common abrasives (such as corundum and silicon carbide) in the grinding process. Grinding is a common process in metal processing, mainly using the high-speed rotation of the grinding wheel to remove protrusions on the surface of the material or to machine specific shapes. Its core principle is that when the abrasive particles on the surface of the grinding wheel make line contact with the surface of the workpiece, relative motion is generated, thereby achieving the cutting and grinding effect. Existing grinding technology involves the contact between the outer cylindrical surface of the grinding wheel and the material to be ground to form a grinding line parallel to the axis of the grinding wheel for grinding.

[0003] However, existing grinding wheels experience rapid abrasive wear during grinding, requiring frequent adjustments and thus affecting grinding efficiency. Summary of the Invention

[0004] To solve the above-mentioned technical problems, this application provides the following technical solution:

[0005] This application provides a dress-free grinding wheel, comprising:

[0006] Grinding wheel substrate;

[0007] A composite grinding body is wound around the side of the grinding wheel base. The composite grinding body includes a plurality of main grinding bodies and a plurality of auxiliary grinding bodies. The main grinding bodies and the auxiliary grinding bodies are connected. The axial projections of the main grinding bodies and the auxiliary grinding bodies relative to the grinding wheel base at least partially overlap.

[0008] Furthermore, the sides of the main grinding body and the auxiliary grinding body that come into contact are arranged in parallel.

[0009] Furthermore, the length directions of the main grinding body and the auxiliary grinding body form an angle α with the axial direction of the grinding wheel base.

[0010] Furthermore, the main grinding body and the auxiliary grinding body are arranged at intervals along the circumference of the grinding wheel base.

[0011] Furthermore, the sum of the volumes of the primary grinding bodies accounts for 15%-35% of the total volume of the dressless grinding wheel.

[0012] Furthermore, the hardness of the main grinding body is 3-5 levels higher than that of the secondary grinding body.

[0013] Furthermore, the outer diameter of the grinding wheel is R, and the number of the main grinding bodies is n, where R = 20 × n.

[0014] Furthermore, the main grinding body and the auxiliary grinding body are connected by an adhesive.

[0015] Furthermore, the grinding wheel base is provided with several heat dissipation holes, which connect the composite grinding body to the external space.

[0016] Furthermore, the heat dissipation hole connects the main grinding body to the external space.

[0017] This application has at least the following beneficial effects:

[0018] The axial projection of the main grinding body relative to the grinding wheel base and the axial projection of the auxiliary grinding body relative to the grinding wheel base overlap at least partially, ensuring that the material forms line contact with the outer surface of the main grinding body at any moment during grinding. During the grinding process, the main grinding body undertakes the main grinding task. The main grinding body uses CBN abrasive, which has a higher hardness than ordinary abrasive and can form a hardness difference between the main grinding body and the auxiliary grinding body, thereby ensuring minimal wear of the composite grinding body and avoiding frequent dressing of the grinding wheel. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of a first embodiment of the dress-free grinding wheel provided in this application.

[0020] Figure 2 This is a schematic diagram of the structure of a second embodiment of the dressless grinding wheel provided in one embodiment of this application.

[0021] Figure label:

[0022] 1. Grinding wheel base; 2. Composite grinding body; 3. Main grinding body; 4. Secondary grinding body; 6. Heat dissipation holes. Detailed Implementation

[0023] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0024] In the description of this application, it should be understood that if terms such as "length", "width", "thickness", "upper", "lower", "vertical", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application.

[0025] The embodiments of this application are described in detail below with reference to the accompanying drawings.

[0026] Example 1

[0027] like Figure 1 The image shows a first embodiment of a dress-free grinding wheel according to this application. This embodiment includes a grinding wheel base 1 and a composite grinding body 2 surrounding the side of the grinding wheel base 1. The composite grinding body 2 includes several main grinding bodies 3 and several auxiliary grinding bodies 4. During the grinding process, the main grinding bodies 3 undertake the main grinding task. The main grinding bodies 3 use CBN abrasive, which has good wear resistance and hardness. The auxiliary grinding bodies 4 use ordinary abrasive, such as corundum, silicon carbide, etc. However, if the existing grinding wheels are made entirely of CBN abrasive, the manufacturing cost of the grinding wheel will be too high and the dressing will be difficult. In this embodiment, the main grinding bodies 3 and auxiliary grinding bodies 4 are connected by an adhesive including but not limited to AB glue. The axial projection of the main grinding bodies 3 relative to the grinding wheel base 1 and the axial projection of the auxiliary grinding bodies 4 relative to the grinding wheel base 1 coincide. That is to say, at any time when the grinding wheel in this embodiment grinds the material, the main grinding bodies 3 and auxiliary grinding bodies 4 are always in contact with the material and grind the material.

[0028] Specifically, when the grinding wheel makes line contact with the material, there are several grinding lines 5 on the outer surface of the composite grinding body 2 that are parallel to the axis of the grinding wheel base 1 (the grinding lines 5 are the grinding trajectories formed by the composite grinding body 2 in contact with the material during the grinding process, and the grinding lines 5 are parallel to the axis of the grinding wheel base 1). Furthermore, all the grinding lines 5 coincide with the outer surface of the main grinding body 3, so that the main grinding body 3 undertakes the main grinding task, that is, the grinding lines 5 must coincide with the outer surface of the main grinding body 3. The auxiliary grinding body 4 does not undertake the main grinding task, but only plays the role of conducting and dissipating the heat generated by the main grinding body 3, so it is not limited here.

[0029] It should also be noted that the contacting sides of the main grinding body 3 and the auxiliary grinding body 4 are arranged parallel to each other. Both the main grinding body 3 and the auxiliary grinding body 4 are spaced apart along the axial direction of the grinding wheel base 1, and the length directions of the main grinding body 3 and the auxiliary grinding body 4 form an angle α with the axial direction of the grinding wheel base 1. The preferred angle range is 45°-60°. When the main grinding body 3 and the auxiliary grinding body 4 form an angle with respect to the axial direction of the grinding wheel base 1, in... Figure 1 As we can see, any grinding line 5 along the axial direction of the grinding wheel base 1 will coincide with the main grinding body 3. Furthermore, in this embodiment, the length of any grinding line 5 that coincides with the main grinding body 3 is equal. That is to say, when the material is being ground, the contact area between the material and the main grinding body 3 on the side of the grinding wheel is always fixed, thereby ensuring that the usage area of ​​the main grinding body 3 is relatively uniform during the grinding process, thus minimizing the wear of the composite grinding body 2. Moreover, the main grinding body 3 and the auxiliary grinding body 4 are connected by an adhesive (AB glue), which can well ensure the bonding strength between the main grinding body 3 and the auxiliary grinding body 4.

[0030] In a preferred embodiment, the main grinding body 3 is uniformly embedded in the auxiliary grinding body 4 along the circumference of the grinding wheel base 1 to complete the mutual connection between the main grinding body 3 and the auxiliary grinding body 4. In addition, the fixing effect of the adhesive further ensures the bonding strength between the main grinding body 3 and the auxiliary grinding body 4.

[0031] Specifically, the volume of several main grinding bodies 3 accounts for 15%-35% of the total volume of the dressless grinding wheel (i.e., the sum of the grinding wheel base 1 and the composite grinding body 2). This arrangement allows for the most efficient grinding of the abrasive. Furthermore, 65%-85% of the total volume is occupied by auxiliary grinding bodies 4 (ordinary abrasive), which significantly reduces the cost of grinding wheel manufacturing. Moreover, by using a reasonable volume ratio of main grinding bodies 3 and auxiliary grinding bodies 4, the hardness of the main grinding bodies 3 is 3-5 levels higher than that of the auxiliary grinding bodies 4. The hardness difference between the main grinding bodies 3 and auxiliary grinding bodies 4 causes the auxiliary grinding bodies 4 to wear slightly faster than the main grinding bodies 3, thereby ensuring the self-sharpening property of the surface of the composite grinding body 2. This avoids frequent grinding wheel dressing. The composite grinding body 2 formed by the main grinding bodies 3 and auxiliary grinding bodies 4 mainly undertakes the grinding task with the main grinding bodies 3. The auxiliary grinding bodies 4 can absorb and conduct the grinding heat generated by the main grinding bodies 3, which is more conducive to the transfer and dissipation of grinding heat.

[0032] Specifically, the outer diameter of the grinding wheel is R, and the number of main grinding bodies 3 is n, where R = 20 × n. This allows the main grinding bodies 3 to have a relatively uniform application area during the grinding process, thereby minimizing the wear of the composite grinding bodies 2 and avoiding frequent dressing of the grinding wheel.

[0033] Example 2

[0034] like Figure 2As shown, this is a second embodiment of a dress-free grinding wheel according to this application. Compared with the first embodiment, the grinding wheel base 1 of this embodiment is further provided with several heat dissipation holes 6. The heat dissipation holes 6 connect the composite grinding body 2 with the external space. That is, the first end of the heat dissipation hole 6 is connected to the composite grinding body 2, and the second end is connected to the external space. The heat generated by the composite grinding body 2 is conducted to the external space through the heat dissipation holes 6 to dissipate heat from the composite grinding body 2. Preferably, the heat dissipation holes 6 connect the main grinding body 3 with the external space. That is, the first end of the heat dissipation hole 6 is directly connected to the main grinding body 3, and the heat dissipation hole 6 directly dissipates heat from the main grinding body 3. In this embodiment, on the one hand, the auxiliary grinding body 4, which undertakes non-main grinding tasks, dissipates heat from the main grinding body 3, which undertakes main grinding tasks. On the other hand, heat dissipation is carried out through the heat dissipation holes 6, which are directly connected to the main grinding body 3 at one end. The two heat dissipation methods are carried out simultaneously to ensure that the grinding heat generated by the main grinding body 3 can be discharged in time, thereby ensuring the service life of the grinding wheel.

[0035] The above embodiments are used to further illustrate this application, but do not limit this application to these specific implementations. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be understood as falling within the protection scope of this application.

Claims

1. A dressing-free grinding wheel, characterized in that, include: Grinding wheel substrate (1); A composite grinding body (2) is arranged around the side of the grinding wheel base (1). The composite grinding body (2) includes a plurality of main grinding bodies (3) and a plurality of auxiliary grinding bodies (4). The main grinding bodies (3) and the auxiliary grinding bodies (4) are connected to each other. The axial projections of the main grinding bodies (3) and the auxiliary grinding bodies (4) relative to the grinding wheel base (1) at least partially overlap.

2. The dressless grinding wheel according to claim 1, characterized in that, The sides of the main grinding body (3) and the auxiliary grinding body (4) that are in contact are arranged in parallel.

3. The dressless grinding wheel according to claim 1, characterized in that, The length directions of the main grinding body (3) and the auxiliary grinding body (4) are at an angle α with the axial direction of the grinding wheel base (1).

4. The dressless grinding wheel according to claim 3, characterized in that, The main grinding body (3) and the auxiliary grinding body (4) are arranged at intervals along the circumference of the grinding wheel base (1).

5. The dressless grinding wheel according to claim 1, characterized in that, The sum of the volumes of the main grinding bodies (3) accounts for 15%-35% of the total volume of the dressless grinding wheel.

6. The dressless grinding wheel according to claim 1, characterized in that, The hardness of the main grinding body (3) is 3-5 levels higher than that of the secondary grinding body (4).

7. The dressless grinding wheel according to claim 1, characterized in that, The outer diameter of the grinding wheel is R, and the number of the main grinding bodies (3) is n, where R = 20 × n.

8. The dressless grinding wheel according to claim 1, characterized in that, The main grinding body (3) and the auxiliary grinding body (4) are connected by an adhesive.

9. The dressless grinding wheel according to claim 1, characterized in that, The grinding wheel base (1) has several heat dissipation holes (6), which connect the composite grinding body (2) to the external space.

10. The dressless grinding wheel according to claim 9, characterized in that, The heat dissipation hole (6) connects the main grinding body (3) to the external space.

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