CN218227298U - Diamond tool bit with bottom layer - Google Patents
Diamond tool bit with bottom layer Download PDFInfo
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- CN218227298U CN218227298U CN202221245891.3U CN202221245891U CN218227298U CN 218227298 U CN218227298 U CN 218227298U CN 202221245891 U CN202221245891 U CN 202221245891U CN 218227298 U CN218227298 U CN 218227298U
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- tool bit
- diamond
- main part
- bit main
- chip groove
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Abstract
The utility model relates to a diamond segments technical field especially relates to a take diamond segments of bottom, including the tool bit main part, the lower extreme of tool bit main part is equipped with the bottom rather than integrated into one piece, and the mass percent of diamond that the bottom material contains is less than the mass percent of diamond that the tool bit main part material contains, and the chip groove that runs through around the middle part of tool bit main part cutting plane is equipped with, and the chip groove is the opening form, and its inner wall is the arc, and chip groove upper end open-ended groove width is 0.4 ~ 0.6 times of tool bit main part width, and the groove width of chip groove bottom is 0.1 ~ 0.2 times of tool bit main part width. In the utility model, because the mass percentage of the diamond contained in the bottom layer is lower, the production cost of the diamond tool bit is effectively saved, and because the mass percentage of the diamond is reduced, the mass percentage of the metal powder is higher, so that the welding of the bottom layer and the base body is more stable; the stability of the cutting surface of the tool bit main body is improved.
Description
Technical Field
The utility model relates to a diamond segments technical field especially relates to a take diamond segments of bottom.
Background
Diamond tips are commonly used to cut materials of relatively high hardness, such as granite, graphite molds, ceramics, and the like; at present, diamond tool bits used in the market are designed integrally, namely, a working layer or an interlayer is integrated; in the actual use process, the bottom of the diamond tool bit, namely the part of the welding surface, is usually used for welding with a substrate, and even if the diamond tool bit is worn, the diamond tool bit is not used as a cutting surface, so that the bottom structure of the diamond tool bit only needs to be ensured to be stably welded with the substrate, and the existing tool bit is usually formed by mixing and sintering diamond particles and metal powder; and the toughness of current diamond segments is not enough, and easy crackle, especially the middle part of tool bit cutting plane because of both ends and the stress concentration that cutting material contact produced, the most easy crackle that produces influences diamond segments life.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides a take diamond segments of bottom.
The utility model adopts the following technical scheme: the utility model provides a take diamond segments of bottom, includes the tool bit main part, the lower extreme of tool bit main part is equipped with rather than integrated into one piece's bottom, the mass percent that the bottom material contains diamond is less than the mass percent that tool bit main part material contains diamond, the chip groove that runs through around the middle part of tool bit main part cutting plane is equipped with, the chip groove is the opening form, and its inner wall is the arc, chip groove upper end open-ended groove width is 0.4 ~ 0.6 times of tool bit main part width, the groove width of chip groove bottom is 0.1 ~ 0.2 times of tool bit main part width.
Preferably, the height of the bottom layer is 1 mm-2.5 mm.
Preferably, the outer wall of the bottom layer is coated with an antirust coating.
Preferably, the length of the tool bit main body is 22 mm-24 mm, and the height is 12 mm-40 mm.
Preferably, the tool bit main part comprises multilayer tool bit basic unit, thereby the thickness of adjacent tool bit basic unit from top to bottom narrows down gradually and forms a plurality of cutting teeth, and the thickness central line of each tool bit basic unit overlaps each other.
Preferably, the cutting teeth are of an arc-shaped structure protruding upwards.
The utility model discloses one of following beneficial effect has at least:
in the utility model, because the mass percentage of the diamond contained in the bottom layer is low, the production cost of the diamond tool bit is effectively saved, and because the mass percentage of the diamond is reduced, the mass percentage of the metal powder is relatively high, so that the bottom layer and the base body are welded more stably, and the stability of the diamond tool bit in use is improved; the arrangement of the chip grooves reduces the cutting surface and the contact area of the cutter head main body, and the arc-shaped inner wall structure is matched, so that the stress concentrated in the middle of the cutting surface is effectively dispersed towards the two sides of the cutter head main body, the stability of the cutting surface of the cutter head main body is improved, and the probability of cracks is reduced.
Drawings
Fig. 1 is a schematic front structural view of the preferred embodiment of the present invention;
fig. 2 is a schematic view of a top-down structure of the preferred embodiment of the present invention;
fig. 3 is a schematic side view of the preferred embodiment of the present invention.
Description of the reference numerals:
10 tool bit body, 11 bottom layers, 111 antirust coating, 12 chip grooves, 13 tool bit base layers and 14 cutting teeth.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center, longitudinal, transverse, length, width, thickness, upper, lower, front, rear, left, right, vertical, horizontal, top, bottom, inner, outer, clockwise, counterclockwise" and the like refer to the orientation or positional relationship as shown in the drawings, which is only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the present invention.
Referring to fig. 1 to 3, the preferred embodiment of the present invention provides a diamond cutter head with a bottom layer, which comprises a cutter head main body 10, wherein the lower end of the cutter head main body 10 is provided with a bottom layer 11 integrally formed with the cutter head main body 10, the mass percentage of diamond contained in the bottom layer 11 material is lower than that of diamond contained in the cutter head main body 10, the middle part of the cutting surface of the cutter head main body 10 is provided with a front and a rear chip discharge groove 12, the chip discharge groove 12 is open, the inner wall of the chip discharge groove is arc-shaped, the groove width of the upper end opening of the chip discharge groove 12 is 0.4 to 0.6 times of the width of the cutter head main body 10, and the groove width of the bottom of the chip discharge groove 12 is 0.1 to 0.2 times of the width of the cutter head main body 10. In the utility model, because the mass percentage of the diamond contained in the bottom layer 11 is low, the production cost of the diamond tool bit is effectively saved, and because the mass percentage of the diamond is reduced, the mass percentage of the metal powder is relatively high, so that the bottom layer 11 and the base body are welded more stably, and the stability of the diamond tool bit in use is improved; the arrangement of the chip grooves 12 reduces the cutting surface and the contact area of the cutter head main body 10, and the arc-shaped inner wall structure is matched, so that the stress concentrated in the middle of the cutting surface is effectively dispersed towards the two sides of the cutter head main body 10, the stability of the cutting surface of the cutter head main body 10 is improved, and the probability of cracks is reduced.
As a preferred embodiment of the present invention, it may also have the following additional technical features:
the height of the bottom layer 11 is 1 mm-2.5 mm, and the height of the bottom layer 11 is small, so that the structural strength of the tool bit main body 10 is prevented from being influenced by the high height; in this embodiment, the bottom layer 11 has a height of 1.4mm; the bottom layer 11 and the tool bit main body 10 are manufactured by hot-pressing and sintering integrally, the mass percentage of the diamond in the bottom layer 11 is about 10%, and the mass percentage of the diamond in the tool bit main body 10 is about 20%.
The outer wall of the bottom layer 11 is coated with the antirust coating 111, and the antirust coating 111 can reduce the probability of rusting of the bottom layer 11, so that the stability of the bottom layer 11 is ensured; in this embodiment, since the side wall of the cutter head body 10 can rub against the cutting object, the antirust coating 111 is applied to the side wall, and only the bottom layer 11 is coated with the antirust coating 111, which can effectively save cost.
The length of the tool bit main body 10 is 22 mm-24 mm, the height is 12 mm-40 mm, the size of the tool bit main body 10 is matched with the bottom layer 11 and the chip groove 12, and the structure is more stable; in this embodiment, the cutter head body 10 has a length of 24mm and a height of 18mm.
The tool bit main body 10 is composed of a plurality of layers of tool bit base layers 13, the thickness of the adjacent tool bit base layers 13 is gradually narrowed from top to bottom to form a plurality of cutting teeth 14, the thickness center lines of the tool bit base layers 13 are mutually overlapped, the cutting teeth 14 are arranged on the front side wall and the rear side wall of the tool bit main body 10, and stress is dispersed during cutting, so that the tool bit main body 10 is not easy to crack; in this embodiment, the tool bit base layer 13 has three layers, the tool bit base layer 13 at the lowermost end has a smaller height, and the tool bit base layers 13 on the two layers have the same height.
The cutting teeth 14 are of an arc-shaped structure protruding upwards, so that the contact area of the cutting teeth with a cutting material is increased relative to the V-shaped cutting teeth, and the cutting efficiency is improved.
The above additional technical features can be freely combined and used in superposition by those skilled in the art without conflict.
The above only is the preferred embodiment of the present invention, as long as the technical solution of the purpose of the present invention is realized by basically the same means, all belong to the protection scope of the present invention.
Claims (6)
1. The utility model provides a take diamond segments of bottom, its characterized in that includes tool bit main part (10), the lower extreme of tool bit main part (10) is equipped with rather than integrated into one piece's bottom (11), the mass percent that bottom (11) material contains diamond is less than the mass percent that tool bit main part (10) material contains diamond, chip groove (12) that run through around the middle part of tool bit main part (10) cutting plane is equipped with, chip groove (12) are the opening form, and its inner wall is the arc, chip groove (12) upper end open-ended slot width is 0.4 ~ 0.6 times of tool bit main part (10) width, the slot width of chip groove (12) bottom is 0.1 ~ 0.2 times of tool bit main part (10) width.
2. A substrate diamond segment as claimed in claim 1, characterized in that the height of the substrate (11) is between 1mm and 2.5 mm.
3. A coated diamond tool tip according to claim 1, characterized in that the outer wall of the substrate (11) is coated with a rust inhibiting coating (111).
4. The primed diamond tip of claim 1, wherein the tip body (10) has a length of between 22mm and 24mm and a height of between 12mm and 40 mm.
5. The diamond tool bit with a substrate according to claim 1, wherein the tool bit body (10) is composed of a plurality of tool bit substrates (13), the thickness of the adjacent tool bit substrates (13) is gradually narrowed from top to bottom to form a plurality of cutting teeth (14), and the thickness center lines of the respective tool bit substrates (13) are overlapped with each other.
6. A diamond tipped tool with a substrate according to claim 5, characterized in that the cutting teeth (14) are of an upwardly convex arc-shaped configuration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221245891.3U CN218227298U (en) | 2022-05-23 | 2022-05-23 | Diamond tool bit with bottom layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221245891.3U CN218227298U (en) | 2022-05-23 | 2022-05-23 | Diamond tool bit with bottom layer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218227298U true CN218227298U (en) | 2023-01-06 |
Family
ID=84671641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221245891.3U Active CN218227298U (en) | 2022-05-23 | 2022-05-23 | Diamond tool bit with bottom layer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218227298U (en) |
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2022
- 2022-05-23 CN CN202221245891.3U patent/CN218227298U/en active Active
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