Diamond grinding disc with efficient heat dissipation function

Abstract

The utility model discloses an efficient heat dissipation diamond grinding disc which comprises a base body, a plurality of grinding strips with diamond particles are fixed on the surface of the base body through bonding or bolts, the plurality of grinding strips are sequentially arranged on the base body in a vortex shape, and a flow guide groove is formed between every two adjacent grinding strips. And the groove width of the flow guide groove is gradually reduced from the opening end to the outlet end. During grinding, grinding chippings can be collected and conveyed to the flow guide grooves through the grinding strips, the chippings in the flow guide grooves can be discharged through centrifugal force, the chipping discharging capacity and the heat dissipation capacity of the grinding disc are improved, and the grinding performance is enhanced; through the arrangement of the through grooves communicated with the flow guide grooves, the flow rate problem of the groove width of the flow guide grooves is solved, meanwhile, the contact area between the grinding strip and a grinding material is reduced, the through grooves are beneficial to air flowing, the heat dissipation effect of the diamond grinding strip is improved, heat dissipation is better, a large amount of heat is prevented from being accumulated, and therefore the stability of a tool is improved; and the continuous grinding time of the device is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of diamond technology, specifically to a diamond grinding disc with high heat dissipation. Background Technology

[0002] In the stone processing process, high-speed rotating diamond grinding discs are used to achieve surface leveling, rough grinding, fine grinding, and polishing of the stone.

[0003] There are many types of diamond grinding discs on the market, but these diamond grinding discs often have poor flow guidance due to their large processing area. If the grinding debris cannot be discharged during grinding, it can easily lead to problems such as blockage, overheating, and workpiece burning, which will reduce work efficiency. In addition, some materials have some impurities on their surface. If these impurities are not cleaned, the wear of the grinding disc will be increased. At the same time, during grinding, it is generally necessary to spray coolant for cooling to prevent the grinding disc or workpiece from being damaged by excessive temperature.

[0004] In view of this, the inventors of this case conducted in-depth research on the above-mentioned problems, which led to the creation of this case. Utility Model Content

[0005] The purpose of this invention is to provide a diamond grinding disc with high heat dissipation capacity, long service life, and high processing quality.

[0006] To achieve the above objectives, this utility model adopts the following technical solution:

[0007] A high-efficiency heat-dissipating diamond grinding disc includes a base. A mounting hole for mounting the base on a machine tool is provided at the center of the base. Multiple diamond grinding strips are fixed to the surface of the base by bonding or bolting. The multiple grinding strips are arranged in a vortex pattern on the base. A guide groove is formed between adjacent grinding strips. The guide groove includes an open end communicating with the mounting hole and an outlet end communicating with the outside. The width of the guide groove gradually decreases from the open end to the outlet end.

[0008] Preferably, each of the grinding strips is an arc-shaped strip plate, and the grinding strip includes a plurality of grinding blocks arranged in an arc shape in sequence. A through groove is formed between two adjacent grinding blocks. The through groove penetrates the side wall of the corresponding grinding strip and connects two adjacent guide grooves.

[0009] Preferably, the width of the through groove is less than or equal to the width of the guide groove.

[0010] Preferably, the cross-sections of each grinding strip are the same; the cross-sectional sizes of the grinding blocks of the same grinding strip are different, and the four sides of each grinding block are chamfered.

[0011] Preferably, each of the grinding stones extends spirally toward the edge of the top surface of the substrate with the axis of the mounting hole as the center, and each of the guide grooves extends spirally toward the edge of the top surface of the substrate with the axis of the mounting hole as the center.

[0012] Preferably, a plurality of annular reinforcing ribs are evenly distributed on the working surface of the substrate from the outer periphery of the mounting hole to the outer periphery of the substrate, and each annular reinforcing rib is coaxially arranged with the mounting hole.

[0013] Preferably, the working surface of the substrate is provided with a spiral reinforcing rib, which extends spirally from the axis of the mounting hole to the edge of the top surface of the substrate.

[0014] Preferably, one end of the grinding strip near the outer side is located at the outer edge of the working surface of the substrate, and its arc-shaped surface is aligned with the outer arc-shaped surface of the substrate; the other end of the grinding strip near the inner side is located at the inner edge of the working surface of the substrate, and its arc-shaped side deviates from the radial direction of the substrate by 45° to 55°.

[0015] Preferably, the grinding block is made of a blend of diamond abrasive, modified resin, toughening agent and filler; the matrix is ​​made of nylon material or metal.

[0016] Preferably, the matrix is ​​made of nylon material or metal.

[0017] Preferably, the working surface of the grinding strip is provided with a leather-like friction layer.

[0018] By adopting the aforementioned design scheme, the beneficial effects of this utility model are:

[0019] 1. By providing a vortex-shaped grinding bar and a vortex-shaped guide groove on the grinding surface of the grinding disc, grinding chips can be collected and transported to the guide groove during grinding. Centrifugal force can discharge the chips from the guide groove. This invention improves the chip removal and heat dissipation capabilities of the grinding disc and enhances grinding performance.

[0020] 2. By setting a through groove connected to the guide groove, not only is the flow rate problem of the guide groove width improved, but the contact area between the grinding wheel and the grinding material is also reduced. The through groove facilitates air flow, improves the heat dissipation effect of the diamond grinding wheel, and better heat dissipation avoids a large accumulation of heat, thereby improving the stability of the tool and extending the continuous grinding time of this utility model.

[0021] 3. Setting more guide channels and through channels can reduce the weight of this utility model itself, effectively reducing resource consumption and production costs;

[0022] 4. Through the research and design of grinding wheel technology, when the grinding mill is running at high speed, since the outer circular speed of the grinding disc is higher than that of the inner circular speed, the outer arc surface of the grinding wheel is designed to be placed along the outer circumference of the substrate, and the inner arc surface of the grinding wheel is designed to be placed and rotated at an angle of 45° to 55° away from the radial direction of the substrate. During high-speed rotating grinding, the abrasive dust can be quickly discharged, which will not clog the grinding surface of the grinding wheel, greatly improve grinding efficiency, reduce grinding temperature, and reduce the thermal damage to diamond caused by grinding temperature.

[0023] 5. The working surface of the substrate is designed with heat dissipation holes, which makes chip removal smooth during the grinding process and has a better heat dissipation effect to maintain the continuous grinding performance of the grinding wheel. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of this utility model;

[0025] Figure 2 This is another structural schematic diagram of the present invention;

[0026] In the figure: 1. Matrix 1, 11. Mounting hole 12. 12. Annular reinforcing rib 2. Grinding strip 2. Grinding block 21. Through groove 22. Guide groove 3. Inlet end 31. Outlet end 32. Detailed Implementation

[0027] 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.

[0028] Reference Figure 1 and Figure 2

[0029] A high-efficiency heat-dissipating diamond grinding disc includes a disc-shaped base 1 and several grinding blocks 2 connected to the base 1 by bonding or bolting. The base 1 is provided with mounting holes 11 for mounting the base 1 on a machine tool. In this embodiment, the base 1 is made of nylon or metal; each grinding block 21 (described in detail below) is made of a blend of diamond abrasive, modified resin, toughening agent, and filler, which can improve the impact resistance of the diamond grinding blocks, making the grinding disc more suitable for construction in complex and harsh environments, preventing premature diamond detachment due to the high strength of concrete, and extending the tool life compared to ordinary grinding discs.

[0030] For ease of description, the side closer to the mounting hole 11 is defined as the inside, and the side farther away from the mounting hole 11 is defined as the outside.

[0031] In this embodiment, only the four grinding stones 2 will be analyzed in detail below. The four grinding stones 2 are evenly distributed on the working surface of the base 1 for better arrangement, and a guide groove 3 is provided between adjacent grinding stones 2. The width of each grinding stone in the horizontal direction is similar. The guide groove 3 includes an open end 31 connected to the mounting hole 11 and an outlet end 32 connected to the outside. The width of the guide groove 3 gradually decreases from the open end 31 to the outlet end 32. Each guide groove 3 extends spirally from the axis of the mounting hole 11 to the top edge of the base 1. The guide grooves 3 are interconnected and connect the inner and outer sides of the grinding stones 2 so that the grinding debris can be discharged from the guide groove 3 by centrifugal force. In addition, the specific shape of the grinding stone 2 can be referred to other existing technologies in the art, which will not be described in detail here. This invention incorporates more guide grooves 3, which on the one hand reduces the weight of the invention, making the diamond grinding disc lighter, lowering costs, and improving work efficiency and energy utilization; on the other hand, it facilitates the arrangement of more guide grooves 3, which can better guide heat dissipation, improve grinding performance, extend service life, reduce dressing frequency, and result in overall performance superior to most commercially available grinding discs. Of course, the specific shape and distribution of the guide grooves 3 can vary.

[0032] Furthermore, each grinding wheel 2 has an arc-shaped strip plate structure, and the grinding wheel 2 includes multiple grinding blocks 21 arranged in an arc shape. A through groove 22 is formed between two adjacent grinding blocks 21. The through groove 22 penetrates the side wall of the corresponding grinding wheel 2 and connects two adjacent guide grooves 3. The width of the through groove 22 is less than or equal to the width of the guide groove 3. Since the width of the opening end 31 of the guide groove 3 (distance a) is greater than the width of the outlet end 32 (distance b), if the outlet end 32 of the guide groove 3 cannot completely discharge the grinding chips during grinding, the grinding chips can be collected and transported to the guide groove 3 and the through groove 22 through the grinding blocks 21. The chips in the guide groove 3 and the through groove 22 can be discharged by centrifugal force, which improves the chip removal capacity and heat dissipation capacity of the grinding wheel and enhances the grinding performance. The utility model is provided with a large number of through grooves 22, which reduces the contact area between the grinding bar 2 and the grinding material. The through grooves 22 facilitate air flow, improve the heat dissipation effect of the diamond grinding bar, and better dissipate heat, thus avoiding the accumulation of a large amount of heat, thereby improving the stability of the tool and extending the continuous grinding time of this utility model.

[0033] Furthermore, the cross-sections of each grinding strip 2 are the same; the cross-sectional sizes of the grinding blocks 21 of the same grinding strip 2 are different or the same, and the four sides of each grinding block 21 are chamfered.

[0034] Furthermore, the four grinding strips 2, each composed of multiple grinding blocks 21, are arranged in a spiral shape. Each grinding strip 2 extends spirally towards the edge of the top surface of the substrate 1 with the axis of the mounting hole 11 as the center. The outer end of the grinding strip 2 is located at the outer edge of the working surface of the substrate 1, and its arc-shaped surface is aligned with the outer arc-shaped surface of the substrate 1. The inner end of the grinding strip 2 is located at the inner edge of the working surface of the substrate 1, and its arc-shaped surface deviates from the radial direction of the substrate 1 by 45° to 55° (preferably 50°). In this embodiment, the arc-shaped side of the inner end of the grinding strip 2 deviating from the radial direction of the substrate 1 by 45° to 55° means that the angle between the outer tangent of the inner section of the grinding strip 2 and the radial direction of the substrate 1 is 45° to 55°.

[0035] This invention, through research and design in the field of grinding wheel technology, addresses the issue that when the grinding mill operates at high speed, the outer circular linear velocity of the grinding disc is higher than that of the inner circular linear velocity. Therefore, according to the grinding principle, the outer circular grinding wheel 2 experiences more wear. Thus, the outer arc-shaped surface of the grinding wheel 2 is designed to be placed along the outer circumference of the base 1, while the inner arc-shaped surface is designed to be placed and rotated at an angle of 45° to 55° off the radial direction of the base 1. This allows for rapid removal of abrasive dust during high-speed grinding, preventing clogging of the grinding wheel's grinding surface, significantly improving grinding efficiency, reducing grinding temperature, and minimizing thermal damage to the diamond caused by grinding temperature.

[0036] Furthermore, a number of annular reinforcing ribs 12 are evenly distributed on the working surface of the substrate 1 from the outer periphery of the mounting hole 11 to the outer periphery of the substrate 1, and each annular reinforcing rib 12 is coaxially arranged with the mounting hole 11.

[0037] Alternatively, the working surface of the base 1 may be provided with spiral reinforcing ribs (not shown in the figure), which extend spirally from the axis of the mounting hole 11 towards the edge of the top surface of the base 1. Designing the working surface of the base 1 with a heat dissipation hole structure allows for smooth chip removal during grinding and provides superior heat dissipation to maintain the continuous grinding performance of the grinding wheel 2; another invention; the annular reinforcing rib 12 or the spiral reinforcing rib can also enhance the strength of the base 1.

[0038] With the above structure, during the grinding operation, the top surface of the grinding strip 2 contacts the stone surface, and the grinding machine drives the base 1 and the grinding strip 2 to rotate. When the grinding strip 2 rotates, it grinds the stone surface. The grinding chips generated are transported to the guide groove 3 through the through groove 22 of the grinding block 21. The chips that enter the guide groove 3 are eventually discharged from the inside of the guide groove 3 to the outside of the base 1, thereby improving the chip removal effect.

[0039] By adopting the aforementioned design scheme, the beneficial effects of this utility model are as follows: By providing a vortex-shaped grinding strip 2 and a set of vortex-shaped guide grooves 3 on the grinding surface of the grinding disc 2, grinding debris can be collected and transported to the guide grooves 3 through the grinding strip 2 during grinding. The debris in the guide grooves 3 can be discharged by centrifugal force, thereby improving the chip removal effect. This utility model improves the chip removal and heat dissipation capacity of the grinding disc, enhances grinding performance, and increases service life. At the same time, more guide grooves 3 can reduce the weight of this utility model itself, effectively reducing resource consumption and production costs. The overall performance of this utility model is superior to most commercially available diamond grinding discs.

[0040] By setting a through groove 21 connected to the guide groove 3, not only is the flow rate problem of the guide groove 3 improved, but the contact area between the grinding bar 2 and the grinding material is also reduced. The through groove 21 facilitates air flow, improves the heat dissipation effect of the diamond grinding disc, and better heat dissipation avoids a large accumulation of heat, thereby improving the stability of the tool and extending the continuous grinding time of this utility model.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency heat-dissipating diamond grinding disc, comprising a substrate, wherein a mounting hole for mounting the substrate on a machine tool is provided at the center of the substrate, and a plurality of diamond grinding strips are fixed to the surface of the substrate by bonding or bolting, characterized in that: Multiple grinding strips are arranged in a vortex pattern on the substrate, and a guide groove is formed between two adjacent grinding strips. The guide groove includes an open end that communicates with the mounting hole and an outlet end that communicates with the outside. The width of the guide groove gradually decreases from the open end to the outlet end.

2. The diamond grinding disc with high-efficiency heat dissipation according to claim 1, characterized in that: Each of the grinding strips is an arc-shaped strip plate. Each grinding strip includes a plurality of grinding blocks arranged in an arc shape. A through groove is formed between two adjacent grinding blocks. The through groove penetrates the side wall of the corresponding grinding strip and connects two adjacent guide grooves.

3. The diamond grinding disc with high-efficiency heat dissipation according to claim 2, characterized in that: The width of the through groove is less than or equal to the width of the guide groove.

4. The diamond grinding disc with high-efficiency heat dissipation according to claim 2, characterized in that: The cross-sections of all the grinding strips are the same; the cross-sectional sizes of the grinding blocks of the same grinding strip are different, and the four sides of each grinding block are chamfered.

5. The diamond grinding disc with high-efficiency heat dissipation according to claim 1, characterized in that: Each of the grinding stones extends spirally toward the edge of the top surface of the substrate with the axis of the mounting hole as the center, and each of the guide grooves extends spirally toward the edge of the top surface of the substrate with the axis of the mounting hole as the center.

6. The diamond grinding disc with high-efficiency heat dissipation according to claim 1, characterized in that: The working surface of the substrate is provided with a plurality of annular reinforcing ribs arranged evenly from the outer periphery of the mounting hole to the outer periphery of the substrate, and each annular reinforcing rib is coaxially arranged with the mounting hole.

7. The diamond grinding disc with high-efficiency heat dissipation according to claim 1, characterized in that: The working surface of the substrate is provided with a spiral reinforcing rib, which extends spirally from the axis of the mounting hole to the edge of the top surface of the substrate.

8. The diamond grinding disc with high-efficiency heat dissipation according to claim 1, characterized in that: The outer end of the grinding strip is located at the outer edge of the working surface of the substrate, and its arc-shaped surface is aligned with the outer arc-shaped surface of the substrate; the inner end of the grinding strip is located at the inner edge of the working surface of the substrate, and its arc-shaped side deviates from the radial direction of the substrate by 45° to 55°.

9. A high-efficiency heat-dissipating diamond grinding disc according to claim 2, characterized in that: The grinding block is made of a blend of diamond abrasive, modified resin, toughening agent and filler; the matrix is ​​made of nylon material or metal.

10. A high-efficiency heat-dissipating diamond grinding disc according to claim 1, characterized in that: The working surface of the grinding wheel is provided with a leather-like friction layer.

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