CN220007414U - Cutting grinding wheel of light-emitting diode - Google Patents
Cutting grinding wheel of light-emitting diode Download PDFInfo
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- CN220007414U CN220007414U CN202320163201.8U CN202320163201U CN220007414U CN 220007414 U CN220007414 U CN 220007414U CN 202320163201 U CN202320163201 U CN 202320163201U CN 220007414 U CN220007414 U CN 220007414U
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- 238000005520 cutting process Methods 0.000 title claims abstract description 172
- 230000036346 tooth eruption Effects 0.000 claims abstract description 86
- 239000000498 cooling water Substances 0.000 abstract description 26
- 239000000758 substrate Substances 0.000 abstract description 17
- 230000017525 heat dissipation Effects 0.000 abstract description 14
- 230000000694 effects Effects 0.000 abstract description 13
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000009826 distribution Methods 0.000 abstract 1
- 239000004576 sand Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 229910052594 sapphire Inorganic materials 0.000 description 2
- 239000010980 sapphire Substances 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000005693 optoelectronics Effects 0.000 description 1
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- Polishing Bodies And Polishing Tools (AREA)
Abstract
The disclosure provides a cutting grinding wheel of a light-emitting diode, belonging to the technical field of photoelectron manufacturing. The cutting grinding wheel comprises a grinding wheel body, wherein one end face of the grinding wheel body is provided with at least two circles of cutting teeth, the cutting teeth of each circle are concentrically distributed, and each circle of cutting teeth comprises a plurality of cutting teeth which are circumferentially distributed at intervals. The cooling water distribution device can enable cooling water to be distributed more uniformly in the cutting process, the heat dissipation effect of the cutting grinding wheel is improved, and the cutting quality of a substrate is improved.
Description
Technical Field
The disclosure relates to the technical field of photoelectron manufacturing, in particular to a cutting grinding wheel of a light-emitting diode.
Background
Light emitting diodes (English: light Emitting Diode, LED for short) are new products with great influence in the optoelectronic industry. Light emitting diodes typically include a substrate, which may typically be a sapphire substrate or a silicon wafer, and an epitaxial layer on the substrate. Because of the special back cutting process of the sapphire substrate and the silicon wafer, no matter what LED products are required to be thinned and cut before being broken into chips, so that the thickness of the products is reduced, and the heat dissipation of the chips is improved.
In the related art, a grinding wheel is generally used for cutting a substrate, one end face of the grinding wheel for cutting is a cutting face, and a plurality of inclined straight teeth which are arranged at intervals are generally arranged on the cutting face. The inclined straight teeth can increase the friction force between the cutting surface and the substrate, thereby ensuring the cutting effect of the substrate.
During the cutting process, cooling water is sprayed to the cutting surface to cool the grinding wheel. However, after cooling water is sprayed to the cutting surface, the cooling water is easy to gather in the gaps of the inclined straight teeth, so that the cooling water is difficult to uniformly distribute on the cutting surface, and further the sand removal and heat dissipation of the grinding wheel are affected, and the cutting quality of the substrate is reduced.
Disclosure of Invention
The embodiment of the disclosure provides a cutting grinding wheel of a light-emitting diode, which can enable cooling water to be distributed more uniformly in the cutting process, improve the heat dissipation effect of the cutting grinding wheel and improve the cutting quality of a substrate. The technical scheme is as follows:
the embodiment of the disclosure provides a cutting grinding wheel of a light-emitting diode, the cutting grinding wheel comprises a grinding wheel body, one end face of the grinding wheel body is provided with at least two circles of cutting teeth, each circle of cutting teeth are concentrically distributed, and each circle of cutting teeth comprises a plurality of cutting teeth which are circumferentially distributed at intervals.
In one implementation manner of the embodiment of the disclosure, a section of the cutting tooth parallel to the end face of the grinding wheel body is in a kidney-shaped.
In another implementation manner of the embodiment of the disclosure, the maximum length of the cutting tooth is 5mm to 15mm, and the radius of the circular arcs at two ends of the cutting tooth is 2mm to 6mm.
In another implementation of the embodiment of the disclosure, the included angle between the radius of the grinding wheel body passing through the geometric center of the cutting tooth and the length direction of the cutting tooth is 40 ° to 60 °.
In another implementation manner of the embodiment of the present disclosure, a length of a line connecting a geometric center of a first cutting tooth and a geometric center of a second cutting tooth is not less than 22mm, the grinding wheel body has adjacent first circle cutting teeth and second circle cutting teeth, the first cutting teeth are any one of the first circle cutting teeth, and the second cutting teeth are one of the second circle cutting teeth closest to the first cutting teeth.
In another implementation manner of the embodiment of the present disclosure, a distance between the geometric center of the first cutting tooth and the geometric center of the second cutting tooth in the length direction of the cutting tooth is not less than 20mm.
In another implementation manner of the embodiment of the present disclosure, an included angle between a geometric center of the first cutting tooth and a center line of the grinding wheel body and a geometric center of the second cutting tooth and a center line of the grinding wheel body is 2 ° to 5 °.
In another implementation manner of the embodiment of the present disclosure, a line connecting the geometric center of the first cutting tooth, the geometric center of the second cutting tooth, and the geometric center of a third cutting tooth is an equilateral triangle, the third cutting tooth is a cutting tooth adjacent to the first cutting tooth in the first circle of cutting teeth, and in the circumferential direction of the grinding wheel body, the second cutting tooth is located between the first cutting tooth and the third cutting tooth.
In another implementation of the disclosed embodiments, the number of cutting teeth is 90 to 150.
In another implementation of the disclosed embodiments, the inner bore of the grinding wheel body has a limit groove extending along an axial direction of the grinding wheel body.
The technical scheme provided by the embodiment of the disclosure has the beneficial effects that at least:
the cutting grinding wheel of the light-emitting diode comprises a grinding wheel body, wherein at least two circles of cutting teeth are arranged on one end face of the grinding wheel body, the cutting teeth of each circle are concentrically distributed, and each circle of cutting teeth comprises a plurality of cutting teeth which are circumferentially distributed at intervals. In this way, no gaps exist between the radially and circumferentially adjacent cutting teeth, and the cutting teeth do not block cooling water. In the cutting process, sprayed cooling water can be discharged through gaps among the cutting teeth, so that the cooling water is prevented from being blocked by the cutting teeth and gathered in the gaps among the cutting teeth, the cooling water can be more uniformly distributed on a cutting face, sand removal and heat dissipation of the grinding wheel are improved, and the cutting quality of a substrate is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings required for the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and other drawings may be obtained according to these drawings without inventive effort for a person of ordinary skill in the art.
Fig. 1 is a schematic structural view of a cutting wheel of a light emitting diode according to the related art;
fig. 2 is a schematic structural view of a cutting wheel of a light emitting diode according to an embodiment of the present disclosure;
fig. 3 is a partial enlarged view at a provided in fig. 2.
The various labels in the figures are described below:
10. a grinding wheel body; 11. a limit groove;
20. cutting teeth; 21. a first cutting tooth; 22. a second cutting tooth; 23. a third cutting tooth;
30. and (5) obliquely straight teeth.
Detailed Description
For the purposes of clarity, technical solutions and advantages of the present disclosure, the following further details the embodiments of the present disclosure with reference to the accompanying drawings.
Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The terms "first," "second," "third," and the like in the description and in the claims, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. Likewise, the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. The word "comprising" or "comprises", and the like, is intended to mean that elements or items that are present in front of "comprising" or "comprising" are included in the word "comprising" or "comprising", and equivalents thereof, without excluding other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", "top", "bottom" and the like are used only to indicate relative positional relationships, which may be changed accordingly when the absolute position of the object to be described is changed.
Fig. 1 is a schematic structural view of a cutting wheel of a light emitting diode according to the related art. As shown in fig. 1, in the related art, a grinding wheel generally includes a ceramic grinding wheel and a metal grinding wheel, and a cutting face of the grinding wheel is arranged with a plurality of bevel straight teeth 30. The grinding wheel with the structure needs to be connected with cooling water to achieve the purpose of cooling when cutting. And in the cooling process, the cooling water sprayed from the side surface is easy to gather in the gap of the inclined straight teeth 30, so that the cooling water is difficult to uniformly distribute on the cutting surface, thereby influencing the sand removal and heat dissipation of the grinding wheel and reducing the cutting quality reduction of the substrate.
To this end, embodiments of the present disclosure provide a cutting wheel for a light emitting diode. Fig. 2 is a schematic structural diagram of a cutting grinding wheel of a light emitting diode according to an embodiment of the disclosure. As shown in fig. 2, the cutting grinding wheel comprises a grinding wheel body 10, wherein one end surface of the grinding wheel body 10 is provided with at least two circles of cutting teeth 20, each circle of cutting teeth 20 is concentrically distributed, and each circle of cutting teeth 20 comprises a plurality of cutting teeth 20 which are circumferentially arranged at intervals.
The cutting grinding wheel of the light-emitting diode comprises a grinding wheel body, wherein at least two circles of cutting teeth are arranged on one end face of the grinding wheel body, the cutting teeth of each circle are concentrically distributed, and each circle of cutting teeth comprises a plurality of cutting teeth which are circumferentially distributed at intervals. In this way, no gaps exist between the radially and circumferentially adjacent cutting teeth, and the cutting teeth do not block cooling water. In the cutting process, sprayed cooling water can be discharged through gaps among the cutting teeth, so that the cooling water is prevented from being blocked by the cutting teeth and gathered in the gaps among the cutting teeth, the cooling water can be more uniformly distributed on a cutting face, sand removal and heat dissipation of the grinding wheel are improved, and the cutting quality of a substrate is improved.
Alternatively, as shown in fig. 2, the cutting teeth 20 have a cross-section in a direction parallel to the annular region 11 that is in the shape of a lumbar circle. The end part of the cutting tooth 20 is arranged into an arc, so that the wear resistance of the cutting tooth 20 can be improved, and the service life of the cutting tooth 20 can be prolonged.
Fig. 3 is a partial enlarged view at a provided in fig. 2. As shown in fig. 3, the maximum length L of the cutting tooth 20 is 5mm to 15mm, and the radius of the circular arc at both ends of the cutting tooth 20 is 2mm to 6mm.
In the embodiment of the disclosure, the cross section of the cutting tooth 20 is in a waist-round shape, the maximum length L of the cutting tooth 20 is a connecting line of two points farthest from each other on the outer contour of the cutting tooth 20, and the connecting line passes through the circle centers of the circular arcs at the two ends of the cutting tooth 20.
In the above implementation manner, by limiting the maximum length of the cutting teeth 20 within the above range, the problem that the distance between the two cutting teeth 20 in the radial direction of the annular region 11 is reduced under the premise that the size of the annular region 11 is fixed can be effectively avoided, so that sprayed cooling water can be smoothly discharged through the gap between the cutting teeth 20, and the sand removal and heat dissipation effects of the grinding wheel are improved.
Meanwhile, the radius of the circular arcs at the two ends of the cutting teeth 20 is controlled to be in the range, so that the size of the cutting teeth 20 is kept in a smaller range, the cutting teeth 20 are prevented from occupying more area of the annular area 11, the space ratio in the annular area 11 is favorably improved, cooling water is conveniently discharged, and the sand removal and heat dissipation effects of the grinding wheel are improved.
Illustratively, the maximum length of the cutting tooth 20 is 11mm, and the radius of the circular arc at both ends of the cutting tooth 20 is 4.5mm.
Alternatively, as shown in fig. 3, the radius of the grinding wheel body 10 passing through the geometric center of the cutting tooth 20 is 40 ° to 60 ° from the length direction of the cutting tooth 20.
Illustratively, as shown in fig. 3, the radius of the grinding wheel body 10 passing through the geometric center of the cutting tooth 20 is 45 ° from the length direction of the cutting tooth 20.
By inclining the cutting teeth 20 in the radial direction of the grinding wheel, the cutting teeth 20 are arranged in the annular region 11 in an inclined manner, and compared with the arrangement mode that the length direction of the cutting teeth 20 is parallel to the radial direction of the annular region 11, the side edges of the cutting teeth 20 cutting the substrate are gradually contacted with the substrate instead of being arranged in parallel with the rotation of the grinding wheel body 10 during cutting, so that the cutting effect can be improved.
Alternatively, as shown in fig. 3, the length of the line connecting the geometric center of the first cutting tooth 21 and the geometric center of the second cutting tooth 22 is not less than 22mm. The grinding wheel body 10 has adjacent first and second circles of cutting teeth, the first cutting tooth 21 being any one of the first circles of cutting teeth, and the second cutting tooth 22 being the closest one of the second circles of cutting teeth to the first cutting tooth 21.
The length of the connecting line between the geometric center of the first cutting tooth 21 and the geometric center of the second cutting tooth 22 is limited in the above range, so that the first cutting tooth 21 and the second cutting tooth 22 can be ensured to keep a proper distance, sprayed cooling water can be smoothly discharged through the gap between the cutting teeth, and the sand removal and heat dissipation effects of the grinding wheel are improved.
Illustratively, the length of the line connecting the geometric centers of the first cutting tooth 21 and the second cutting tooth 22 is 23mm.
Alternatively, as shown in fig. 3, the distance H between the geometric center of the first cutting tooth 21 and the geometric center of the second cutting tooth 22 in the longitudinal direction of the cutting tooth 20 is not less than 20mm.
In the above implementation manner, by limiting the distance H between the first cutting tooth 21 and the second cutting tooth 22 in the direction of the length of the cutting tooth 20 within the above range, it is ensured that the first cutting tooth 21 and the second cutting tooth 22 maintain a proper distance in the length direction, so that sprayed cooling water can be smoothly discharged through the gap between the cutting teeth 20, and the sand removal and heat dissipation effects of the grinding wheel are improved.
Illustratively, the spacing H of the geometric centers of the first cutting tooth 21 and the second cutting tooth 22 in the length direction of the cutting tooth 20 is 20.6mm.
Alternatively, as shown in fig. 3, the distance h between the geometric center of the first cutting tooth 21 and the geometric center of the second cutting tooth 22 in the direction perpendicular to the length of the cutting tooth 20 is not less than 10mm.
In the above-mentioned implementation manner, by limiting the distance h between the first cutting tooth 21 and the second cutting tooth 22 in the direction perpendicular to the length of the cutting tooth 20 within the above-mentioned range, it is ensured that the first cutting tooth 21 and the second cutting tooth 22 maintain a proper distance in the direction perpendicular to the maximum length, so that sprayed cooling water can be smoothly discharged through the gap between the cutting teeth 20, and the sand removal and heat dissipation effects of the grinding wheel are improved.
Illustratively, the spacing h of the geometric centers of the first and second cutting teeth 21, 22 in a direction perpendicular to the length of the cutting teeth 20 is 10mm.
In the embodiment of the present disclosure, as shown in fig. 2, an included angle β between a line connecting the geometric center of the first cutting tooth 21 and the center of the grinding wheel body 10 and a line connecting the geometric center of the second cutting tooth 22 and the center of the grinding wheel body 10 is 2 ° to 5 °.
In the above implementation manner, by limiting the included angle between the geometric center of the first cutting tooth 21 and the center line of the grinding wheel body 10 and the geometric center of the second cutting tooth 22 and the center line of the grinding wheel body 10 to be within the above range, it is ensured that the first cutting tooth 21 and the second cutting tooth 22 keep a proper distance, so that sprayed cooling water can be smoothly discharged through the gap between the cutting teeth 20, and the sand removal and heat dissipation effects of the grinding wheel are improved.
Illustratively, the included angle β between the geometric center of the first cutting tooth 21 and the center line of the grinding wheel body 10 and the geometric center of the second cutting tooth 22 and the center line of the grinding wheel body 10 may be 3 ° 36'.
It should be noted that, in other implementations, the cross section of the cutting tooth parallel to the end surface of the grinding wheel body may also be a plurality of patterns such as a polygon, a circle, and an ellipse, which are not limited by the embodiments of the present disclosure.
In the embodiment of the present disclosure, as shown in fig. 2, the end surface of the grinding wheel body 10 has two circles of cutting teeth, each circle of cutting teeth includes a plurality of cutting teeth 20 circumferentially distributed, the two circles of cutting teeth are concentrically distributed,
alternatively, the number of cutting teeth 20 is 90 to 150.
Illustratively, as shown in fig. 2, the number of cutting teeth 20 in each turn of cutting teeth may be the same, and the number of cutting teeth 20 in each turn of cutting teeth may be 50, so that 100 cutting teeth 20 are distributed on the end surface of the grinding wheel body 10 to ensure the cutting effect of the cutting wheel and the substrate.
Alternatively, as shown in fig. 3, the lines of the geometric centers of the first cutting tooth 21, the second cutting tooth 22, and the third cutting tooth 23 are equilateral triangles, the third cutting tooth 23 is the cutting tooth adjacent to the first cutting tooth 21 among the first circle of cutting teeth, and the second cutting tooth 22 is located between the first cutting tooth 21 and the third cutting tooth 23 in the circumferential direction of the grinding wheel body 10.
The connecting line of the geometric centers of the cutting teeth 20 is arranged in an equilateral triangle mode, so that the cutting effect of the cutting teeth 20 on the substrate can be improved, and the three cutting teeth 20 can also keep sufficient gaps, so that sprayed cooling water can be smoothly discharged through the gaps among the cutting teeth 20, and the sand removal and heat dissipation effects of the grinding wheel are improved.
Alternatively, the outer diameter of the grinding wheel body 10 is 40mm to 60mm. Illustratively, the outer diameter of the grinding wheel body 10 may be 45.3mm.
Optionally, as shown in fig. 2, the inner bore of the grinding wheel body 10 has a limit groove 11 extending in the axial direction of the grinding wheel body 10. The inner hole of the grinding wheel body 10 is used for inserting shaft parts, and then the shaft parts are inserted into the inner hole of the grinding wheel body, and in the process of inserting the shaft parts into the inner hole of the grinding wheel body, the shaft parts can be fixed with the grinding wheel body in the circumferential direction by installing limit keys on the outer wall surfaces of the shaft parts and matching the limit keys with the limit grooves, so that the shaft parts can drive the grinding wheel body to rotate.
The cutting grinding wheel provided by the embodiment of the disclosure has uniform stress in the operation process, can reduce the grinding resistance load and improve the situation of broken pieces; and each cutting tooth 20 is arranged in staggered manner, so that the chip removal and the intervention performance of cooling water are improved; meanwhile, compared with straight teeth, the service life of the obliquely arranged cutting teeth 20 can be prolonged.
The foregoing disclosure is not intended to be limited to any form of embodiment, but is not intended to limit the disclosure, and any simple modification, equivalent changes and adaptations of the embodiments according to the technical principles of the disclosure are intended to be within the scope of the disclosure, as long as the modifications or equivalent embodiments are possible using the technical principles of the disclosure without departing from the scope of the disclosure.
Claims (9)
1. The cutting grinding wheel is characterized by comprising a grinding wheel body (10), wherein one end face of the grinding wheel body (10) is provided with at least two circles of cutting teeth (20), each circle of cutting teeth (20) is concentrically distributed, each circle of cutting teeth (20) comprises a plurality of cutting teeth (20) which are circumferentially arranged at intervals, the length of a connecting line between the geometric center of a first cutting tooth (21) and the geometric center of a second cutting tooth (22) is not less than 22mm, the grinding wheel body (10) is provided with adjacent first circles of cutting teeth and second circles of cutting teeth, the first cutting tooth (21) is any one of the first circles of cutting teeth, and the second cutting tooth (22) is the closest cutting tooth from the first cutting tooth (21).
2. Cutting grinding wheel according to claim 1, characterized in that the cutting teeth (20) are kidney-shaped in cross section parallel to the end face of the grinding wheel body (10).
3. Cutting grinding wheel according to claim 2, characterized in that the maximum length of the cutting tooth (20) is 5mm to 15mm, and the radius of the arc of the two ends of the cutting tooth (20) is 2mm to 6mm.
4. Cutting grinding wheel according to claim 2, characterized in that the radius of the grinding wheel body (10) through the geometric centre of the cutting tooth (20) is 40 ° to 60 ° from the length direction of the cutting tooth (20).
5. Cutting grinding wheel according to claim 1, characterized in that the distance between the geometric center of the first cutting tooth (21) and the geometric center of the second cutting tooth (22) in the length direction of the cutting tooth (20) is not less than 20mm.
6. Cutting grinding wheel according to claim 4, characterized in that the angle between the geometrical centre of the first cutting tooth (21) and the centre line of the grinding wheel body (10) and the geometrical centre of the second cutting tooth (22) and the centre line of the grinding wheel body (10) is 2 ° to 5 °.
7. The cutting wheel according to claim 1, wherein a line connecting the geometric centers of the first cutting tooth (21), the second cutting tooth (22), and the third cutting tooth (23) is an equilateral triangle, the third cutting tooth (23) being a cutting tooth adjacent to the first cutting tooth (21) among the first ring of cutting teeth, and the second cutting tooth (22) being located between the first cutting tooth (21) and the third cutting tooth (23) in the circumferential direction of the wheel body (10).
8. The cutting grinding wheel according to any one of claims 1 to 4, wherein the number of cutting teeth (20) is 90 to 150.
9. Cutting grinding wheel according to any one of claims 1 to 4, characterized in that the inner bore of the grinding wheel body (10) has a limit groove (11) extending in the axial direction of the grinding wheel body (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320163201.8U CN220007414U (en) | 2023-02-08 | 2023-02-08 | Cutting grinding wheel of light-emitting diode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320163201.8U CN220007414U (en) | 2023-02-08 | 2023-02-08 | Cutting grinding wheel of light-emitting diode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220007414U true CN220007414U (en) | 2023-11-14 |
Family
ID=88671341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320163201.8U Active CN220007414U (en) | 2023-02-08 | 2023-02-08 | Cutting grinding wheel of light-emitting diode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220007414U (en) |
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2023
- 2023-02-08 CN CN202320163201.8U patent/CN220007414U/en active Active
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| CP03 | Change of name, title or address |
Address after: 215600 No.28 CHENFENG Road, Zhangjiagang Economic Development Zone, Suzhou City, Jiangsu Province Patentee after: BOE Huacan Optoelectronics (Suzhou) Co.,Ltd. Country or region after: China Address before: 215600 No.28 CHENFENG Road, Zhangjiagang Economic Development Zone, Suzhou City, Jiangsu Province Patentee before: HC SEMITEK (SUZHOU) Co.,Ltd. Country or region before: China |
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