Diamond grinding wheel and grinding equipment

Abstract

The utility model provides a diamond grinding wheel, which relates to the technical field of diamond grinding wheels, and comprises a grinding wheel base body, one end of the grinding wheel base body is fixedly connected with a clamping component, an abrasive ring is clamped and fixed on the clamping component, the side wall of the grinding wheel base body is provided with a heat dissipation component, and the heat dissipation component is provided with a plurality of flow deflectors and heat dissipation holes. The flow deflectors are arranged on the grinding wheel base body in a surrounding mode, the heat dissipation holes are close to the outer edge of the grinding wheel base body, and meanwhile the utility model further provides grinding equipment comprising the diamond grinding wheel. The flow deflectors are arranged in a surrounding mode, the flow deflectors can stir air for heat dissipation, the interior and the exterior of the grinding wheel base body are communicated through the heat dissipation holes, heat diffusion is better facilitated, the clamping assembly is arranged, clamping and fixing of the grinding material ring can be completed, the grinding material ring can be subjected to ring face grinding or side wall grinding, applicability is high, meanwhile, disassembly and replacement are convenient, and practicability is high. The problem that in the prior art, large-particle impurities are prone to blocking inclined air holes, and consequently the heat dissipation efficiency is reduced is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of diamond grinding wheels, in particular to a diamond grinding wheel and a grinding device. Background Art

[0002] Diamond grinding wheels are super-hard abrasive grinding wheels. Due to their ultra-high hardness, wear resistance and thermal conductivity, they are widely used in the grinding of hard-to-machine materials such as cemented carbide, glass, and ceramics. Diamond grinding wheels are generally made of diamond abrasives as raw materials, and metal powder, resin powder, ceramics, and electroplated metal as binders to form circular bonded abrasives with a through hole in the center. However, in daily use, the grinding of workpieces by diamond grinding wheels is completed through friction between each other, which means that the friction process will continuously generate heat. Therefore, if the diamond grinding wheel cannot be cooled in time during use, it will not only affect the grinding efficiency of the diamond grinding wheel, but also affect its service life and even damage the workpiece.

[0003] The Chinese utility model patent with authorization announcement number CN216859416U discloses a high-protection diamond grinding wheel for a knife sharpener, including a base, a heat-conducting clamp ring is arranged on the outer periphery of the top of the base, an inclined air hole is arranged in the heat-conducting clamp ring, a transition layer is arranged on the outer side of the heat-conducting clamp ring, an abrasive layer is arranged in the transition layer, and an assembly flange is arranged at the center of the bottom of the base; the utility model adds a heat-conducting clamp ring to the transition layer on the traditional diamond grinding wheel, increases the thickness of the transition layer, and wraps and installs the abrasive layer, which can effectively improve the operating force during the beating process of the abrasive layer, facilitates the operator's safe construction, avoids damage to the abrasive layer, greatly improves the anti-axial force of the grinding wheel body, and the heat-conducting clamp ring cooperates with the effect of the inclined air hole to ensure the heat dissipation efficiency of the grinding wheel after the thickening of the transition layer, and prevents the grinding wheel from clogging and burning the workpiece.

[0004] However, in the above structure, although inclined air holes are provided for heat dissipation, the inclined air holes are provided inside the thermal clamp ring. In order to ensure the stability of the thermal clamp ring and the operability of the grinding wheel, the inclined air holes cannot be designed to be too large. Large particles of impurities are easily generated in the abrasive environment, and the large particles of impurities can easily enter the inclined air holes and block them, resulting in a decrease in heat dissipation efficiency. Utility Model Content

[0005] In view of the deficiencies existing in the prior art, the utility model provides a diamond grinding wheel and a grinding device, which solves the problem in the prior art that large particle impurities easily clog the inclined air holes, resulting in reduced heat dissipation efficiency.

[0006] According to an embodiment of the present invention, a diamond grinding wheel includes a grinding wheel base body, one end of the grinding wheel base body is fixedly connected with a clamping assembly, an abrasive ring is clamped and fixed on the clamping assembly, and a heat dissipation assembly is arranged on the side wall of the grinding wheel base body;

[0007] The heat dissipation assembly includes: guide vanes and heat dissipation holes. A plurality of the guide vanes are arranged around the grinding wheel base body in a surrounding manner. The heat dissipation holes penetrate through the side wall of the grinding wheel base body and are close to the outer edge of the grinding wheel base body.

[0008] The technical principle of the present invention is as follows: When using the diamond grinding wheel proposed by the present invention, the heat generated by friction is transferred to the grinding wheel base body. The rotation of the grinding wheel base body will cause the guide vanes to stir the air, and the air will carry the heat and dissipate it from the heat dissipation holes, thereby completing the heat dissipation.

[0009] Furthermore, the heat dissipation assembly further includes a liquid storage cavity. The liquid storage cavity is arranged around the inner side surface of the grinding wheel base body, and the liquid storage cavity is filled with a refrigerant.

[0010] Furthermore, a liquid outlet hole is arranged at one end of the liquid storage cavity close to the outer edge of the grinding wheel base body, and the liquid outlet hole is close to the side wall of the grinding wheel base body.

[0011] Still further, the clamping assembly includes an equal-diameter fixed ring and a movable ring. One end of the fixed ring is fixedly connected with the grinding wheel base body, and the other end is fixedly connected with the movable ring through a bolt. First threaded holes and second threaded holes matched with the bolt are respectively arranged at the inner edges of the fixed ring and the movable ring.

[0012] Still further, a limiting ring protrudes from the inner edge of the fixed ring. The outer diameter of the limiting ring is smaller than the inner diameter of the abrasive ring for the abrasive ring to be embedded and fixed.

[0013] Still further, the guide vanes are arranged as concave surfaces along the rotation direction, and the heat dissipation holes are close to the concave openings of the guide vanes.

[0014] Still further, a flange is fixedly connected to the other end of the grinding wheel base body.

[0015] According to the embodiment, a grinding device is further provided, which includes the above-mentioned diamond grinding wheel.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. By arranging the guide vanes in a surrounding manner, the guide vanes can stir the air, so that the heat conducted by the grinding wheel base body is dissipated. The heat dissipation holes are arranged to make the inside and outside of the grinding wheel base body communicate, which is more conducive to heat diffusion. The position and size of the heat dissipation holes can be adjusted according to the actual situation to avoid blockage.

[0018] 2. By setting the clamping assembly, the clamping assembly can complete the clamping and fixing of the abrasive ring. When the abrasive ring is worn or damaged, the fixing of the abrasive ring by the clamping assembly can be released, so as to replace the abrasive ring. Brief Description of the Drawings

[0019] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present utility model.

[0020] Figure 2 It is an exploded schematic diagram of the structure of an embodiment of the present utility model.

[0021] Figure 3 It is a schematic diagram of the overall structure of another embodiment of the present utility model.

[0022] Figure 4 is Figure 3 an enlarged schematic diagram of the structure at A in

[0023] In the above-mentioned drawings: 1. Grinding wheel base; 11. Deflector; 12. Heat dissipation holes; 2. Abrasive ring; 3. Fixed ring; 31. Movable ring; 32. Bolt; 321. First threaded hole; 322. Second threaded hole; 33. Limit ring; 4. Liquid storage cavity; 41. Liquid outlet hole. Detailed Embodiment

[0024] The technical solutions in the present utility model will be further described below with reference to the drawings and embodiments.

[0025] As Figure 1 shown, an embodiment of the present utility model provides a diamond grinding wheel, which includes a grinding wheel base 1. The grinding wheel base 1 is preferably a reduced-diameter cylindrical structure, so that it has a large-diameter end and a small-diameter end with a circular end face. The large-diameter end is fixedly connected with a clamping assembly, and an abrasive ring 2 is fixedly clamped on the clamping assembly. Preferably, the materials of the grinding wheel base 1 and the clamping assembly are heat-conducting materials, which are convenient for heat transfer.

[0026] As Figure 1 shown, a heat dissipation assembly is provided on the side wall of the grinding wheel base 1. The heat dissipation assembly includes: a deflector 11 and heat dissipation holes 12. The number of the deflectors 11 is several, and they are evenly arranged around the inner wall or the outer wall of the grinding wheel base 1. Preferably, the deflectors 11 are arranged at a right angle to the rotation direction and are concave along the rotation direction, so that it can stir the air more easily, thereby taking away more heat. The number of the heat dissipation holes 12 is several and penetrates through the side wall of the grinding wheel base 1. Preferably, the heat dissipation holes 12 are close to the outer edge of the grinding wheel base 1 and close to the concave opening of the deflector 11, and correspond to the number of the deflectors 11. The shape and size of the heat dissipation holes 12 can be set according to the actual situation.

[0027] As Figure 2As shown in the figure, the clamping assembly includes a fixed ring 3 and a movable ring 31 with equal diameters. One end of the fixed ring 3 is fixedly connected to the grinding wheel base body 1, and the other end is fixedly connected to the movable ring 31 through a bolt 32. First threaded holes 321 and second threaded holes 322 that cooperate with the bolt 32 are respectively arranged near the inner edges of the fixed ring 3 and the movable ring 31. By tightening the bolt 32, the fixed ring 3 and the movable ring 31 can clamp the abrasive ring 2 tightly. Rubber gaskets can be arranged at the clamping contact positions of the fixed ring 3 and the movable ring 31 with the abrasive ring 2 to prevent uneven stress on the abrasive ring 2 caused by the rigid stress of clamping, thereby damaging the abrasive ring 2. Further, a limiting ring 33 protrudes from the inner edge of the fixed ring 3. The thickness of the limiting ring 33 is not greater than the thickness of the abrasive ring 2, and the outer diameter of the limiting ring 33 is smaller than the inner diameter of the abrasive ring 2, so that the abrasive ring 2 can be better positioned and embedded in the limiting ring 33 for fixation. The first threaded hole 321 penetrates upward through the limiting ring 33, enabling the bolt 32 to be normally screwed in. A flange is fixedly connected to the small-diameter end of the grinding wheel base body 1 for the installation and connection of the grinding wheel base body 1.

[0028] The technical principle of the present utility model is as follows: During use, the bolt 32 is screwed to lock the movable ring 31 and the fixed ring 3 tightly to the abrasive ring 2, and the grinding wheel base body 1 and the motor output end are fixedly connected through a flange. The motor drives the abrasive ring 2 on the grinding wheel base body 1 to rotate. During operation, the ring surface or side wall of the abrasive ring 2 is used to grind the workpiece. The heat generated by the friction between the abrasive ring 2 and the workpiece will be transferred to the grinding wheel base body 1. The rotation of the grinding wheel base body 1 will cause the guide vanes 11 to stir the air to dissipate heat from the grinding wheel base body 1. At the same time, the air will carry heat to form convection in the heat dissipation holes 12, thereby further improving the heat dissipation effect.

[0029] In the present utility model, guide vanes 11 are arranged around the grinding wheel base body 1 to stir the air, so that the heat is dissipated after being transferred. Heat dissipation holes 12 are provided to make the inside and outside of the grinding wheel base body 1 communicate with each other, so that the heat diffusion effect is better. At the same time, the position and size of the heat dissipation holes 12 can be adjusted according to the actual situation, which can effectively avoid the occurrence of blockage. By setting the bolt 32 to tighten and fix the movable ring 31 and the fixed ring 3, the clamping force generated can complete the clamping and fixing of the abrasive ring 2. Since the abrasive ring 2 is clamped in a three-sided annular manner by the fixed ring 3, the limiting ring 33 and the movable ring 31, it has a stable force-bearing support structure and can resist external forces from multiple angles. Therefore, side wall grinding can also be carried out, increasing the applicability of the device. When the abrasive ring 2 is worn or damaged, the abrasive ring 2 can be replaced by removing the movable ring 31.

[0030] Such as Figure 3 and Figure 4As shown, according to another embodiment of the present utility model, the heat dissipation component further includes a liquid storage cavity 4, which is disposed around the inner side surface of the grinding wheel base body 1. The liquid storage cavity 4 is filled with a coolant. One end of the liquid storage cavity 4 near the outer edge of the grinding wheel base body 1 is provided with a liquid outlet hole 41. The liquid outlet hole 41 is close to the side wall of the grinding wheel base body 1. The size of the liquid outlet hole 41 can be set according to actual use requirements. Preferably, a plug can be arranged in the liquid outlet hole 41. The plug can be a rubber soft plug with small holes or a material with certain permeability, so that the coolant in the liquid storage cavity 4 can be thrown out when the rotation reaches a certain speed, that is, when it is subjected to a certain centripetal force, and evenly cover the surface of the grinding wheel base body 1 for heat dissipation.

[0031] Based on the above improvement, when the grinding wheel gradually rotates and reaches a certain speed, the heat accumulated in the grinding wheel base body 1 gradually increases. At this time, the coolant in the liquid storage cavity 4 will be thrown out from the liquid outlet hole 41. Because it is close to the side wall of the grinding wheel base body 1, it will be evenly covered on the surface of the grinding wheel base body 1, thereby further improving the heat dissipation effect.

[0032] As Figure 1 and Figure 3 As shown, according to another embodiment of the present utility model, the diamond grinding wheel proposed by the present utility model can be installed on the grinding equipment in a detachable manner, that is, a grinding equipment including the diamond grinding wheel is also provided. The grinding equipment is similar to the prior art, such as a fixed grinding machine or a hand-held grinding machine. Connect the diamond grinding wheel to the rotating output end of the grinding equipment through a flange, and then the workpiece can be ground. The diamond grinding wheel of the grinding equipment is convenient for disassembly and replacement, can perform toroidal grinding or side wall grinding, has high applicability, and at the same time has good heat dissipation performance.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model and not to limit them. Although the present utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present utility model can be modified or equivalently replaced without departing from the purpose and scope of the technical solutions of the present utility model, and they should all be covered within the scope of the claims of the present utility model.

Claims

1. A diamond grinding wheel, comprising a grinding wheel base (1), characterized in that: One end of the grinding wheel base (1) is fixedly connected to a clamping assembly, an abrasive ring (2) is clamped and fixed on the clamping assembly, and a heat dissipation assembly is provided on the side wall of the grinding wheel base (1); The heat dissipation component comprises: a guide plate (11) and a heat dissipation hole (12); a plurality of the guide plates (11) are arranged around the grinding wheel base (1); and the heat dissipation hole (12) passes through the side wall of the grinding wheel base (1) and is close to the outer edge of the grinding wheel base (1).

2. A diamond grinding wheel as claimed in claim 1, characterized in that: The heat dissipation component further comprises a liquid storage chamber (4), the liquid storage chamber (4) being arranged around the inner side surface of the grinding wheel base (1), and the liquid storage chamber (4) being filled with a refrigerant.

3. A diamond grinding wheel as claimed in claim 2, characterized in that: The liquid storage chamber (4) is provided with a liquid outlet hole (41) at one end close to the outer edge of the grinding wheel base (1), and the liquid outlet hole (41) is close to the side wall of the grinding wheel base (1).

4. A diamond grinding wheel as claimed in claim 1, characterized in that: The clamping assembly comprises a fixed ring (3) and a movable ring (31) of equal diameter; one end of the fixed ring (3) is fixedly connected to the grinding wheel base (1), and the other end is fixedly connected to the movable ring (31) via a bolt (32); a first threaded hole (321) and a second threaded hole (322) cooperating with the bolt (32) are respectively provided near the inner edge of the fixed ring (3) and the movable ring (31).

5. A diamond grinding wheel as claimed in claim 4, characterized in that: The inner edge of the fixing ring (3) is protruded with a limiting ring (33), and the outer diameter of the limiting ring (33) is smaller than the inner diameter of the abrasive ring (2), so that the abrasive ring (2) can be embedded and fixed.

6. A diamond grinding wheel as claimed in claim 1, characterized in that: The guide plate (11) is arranged to be a concave surface along the rotation direction, and the heat dissipation hole (12) is close to the notch of the guide plate (11).

7. A diamond grinding wheel as claimed in claim 1, characterized in that: The other end of the grinding wheel base (1) is fixedly connected with a flange.

8. A grinding device, characterized in that: It comprises the diamond grinding wheel as claimed in any one of claims 1 to 7.

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