CN218694199U - High-performance integral hard alloy coating drill bit structure - Google Patents
High-performance integral hard alloy coating drill bit structure Download PDFInfo
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- CN218694199U CN218694199U CN202222277151.4U CN202222277151U CN218694199U CN 218694199 U CN218694199 U CN 218694199U CN 202222277151 U CN202222277151 U CN 202222277151U CN 218694199 U CN218694199 U CN 218694199U
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Abstract
The utility model discloses an integral carbide coating drill bit structure of high performance, include: the first end of the cutter handle part is connected with the cutter head through a step part, and the second end of the cutter handle part is provided with a chamfer structure; the cutter head is of a drill bit structure, and the angle of a first back angle of the end edge of the cutter head is 7 +/-1 degrees; the angle of the second relief angle of the end edge of the cutter head is 28 +/-2 degrees; the front end of the first peripheral edge of the cutter head is connected with the rear end of the second peripheral edge through a first groove; the front end of the second peripheral edge of the cutter head is connected with the front end of the second peripheral edge through a second groove; the angle of the rake angle of the first peripheral edge or the second peripheral edge is 6 +/-1 DEG; the chisel edge angle of the end teeth is 40 degrees; the rotation angle from the chip groove to the cutting edge is 30 +/-1 degrees; the axial inclination angle of the chip groove is 60 degrees; the angle of the drill point is 118 degrees; the helix angle is 35. The utility model discloses a drilling function and the wearability of superelevation can reach excellent cutter life-span when guaranteeing product machining size precision.
Description
Technical Field
The utility model relates to a carbide coating drill bit field of making, concretely relates to integral carbide coating drill bit structure of high performance.
Background
When the working condition environment of stainless steel material processing in 3C industry is faced, the requirements on the shape and size precision, the knife lines and the service life of a cutter of a product are high.
Therefore, the tool needs to be developed in a targeted manner aiming at the working condition environment of stainless steel material processing in the 3C industry, the ultrahigh drilling function and the ultrahigh wear resistance are mainly needed to be provided through a specific tool, the processing size precision of a product is ensured, the service life of the tool is excellent, and the surface of the product has very excellent appearance quality.
SUMMERY OF THE UTILITY MODEL
In order to overcome the above-mentioned defect of prior art, the utility model aims to provide an integral carbide coating drill bit structure of high performance. The special cutter provides ultrahigh drilling function and wear resistance, the excellent cutter service life can be achieved while the machining size precision of the product is guaranteed, and the surface of the product has excellent appearance quality.
In order to realize the utility model discloses an aim, the technical scheme who adopts is:
a high performance monolithic cemented carbide coated drill bit structure comprising:
a handle part, the first end of the handle part is connected with a cutter head through a step part,
a second end of the tool shank part is provided with a chamfer structure;
the cutter head is of a drill bit structure, and the angle of a first back angle of the end edge of the cutter head is 7 +/-1 degrees;
the angle of the second relief angle of the end edge of the cutter head is 28 +/-2 degrees;
the front end of the first peripheral edge of the cutter head is connected with the rear end of the second peripheral edge through a first groove;
the front end of the second peripheral edge of the cutter head is connected with the front end of the second peripheral edge through a second groove;
the angle of the rake angle of the first peripheral edge or the second peripheral edge is 6 ± 1 °;
the chisel edge angle of the drill bit structure end teeth is 40 degrees;
the rotation angle from the chip pocket of the drill bit structure to the cutting edge is 30 +/-1 degrees;
the axial inclination angle of the chip groove of the cutter head is 60 degrees;
the drill point angle of the drill bit structure is 118 degrees;
the helix angle of the drill bit structure is 35 degrees.
In a preferred embodiment of the invention, the core diameter of the cutting head is 0.1mm.
In a preferred embodiment of the present invention, the drill structure includes a bit portion, a step body connected to the bit portion, and a cylindrical body disposed at a rear end of the step body;
in a preferred embodiment of the present invention, the inclination angle of the step body is 28 °.
In a preferred embodiment of the present invention, the inclination angle of the step portion is 32 °.
In a preferred embodiment of the present invention, the length of the knife head is 0.4+0.05
-0.1mm。
In a preferred embodiment of the present invention, the width of the blade head portion is 0.25+0.02 mm.
The beneficial effects of the utility model reside in that:
the utility model discloses an integral carbide coating drill bit structure of high performance can reach excellent cutter life-span when guaranteeing product machining size precision through the drilling function and the wearability that provide the superelevation, and the product surface possess very outstanding appearance quality.
Drawings
The structure and the working principle of the present invention are further explained with the attached drawings as follows:
fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic view of a partial structure of the present invention.
Fig. 3 is a schematic view of a partial structure of the present invention.
Fig. 4 is a schematic view of a local structure of the present invention.
Fig. 5 is a schematic view of a local structure of the present invention.
Fig. 6 is a schematic view of a partial structure of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clear, the present invention is further described in detail through the accompanying drawings and embodiments. It should be understood, however, that the description herein of specific embodiments is only intended to illustrate the invention and not to limit the scope of the invention. Moreover, in the following structures, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, and are only for convenience of description of the present invention and simplification of description. And are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation and are therefore not to be considered limiting of the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
1-6, the high performance monolithic cemented carbide coated drill bit structure includes a shank portion 100, a first end of the shank portion 100 being connected to a cutting head 200 by a step portion 110. The inclination angle of the step portion 110 is 32 °.
The tool bit 200 is made of a hard alloy material coated with a coating, the hard alloy is also called tungsten steel, and the main component of the tool bit is tungsten carbide (chemical formula: WC), and cobalt (chemical formula: co) is used as a bonding agent, and the tool bit is a high-hardness alloy manufactured through a powder metallurgy process.
The second end of the tool shank portion 100 is provided with a chamfered structure 120.
With particular reference to fig. 2-4, the cutting head 200 is a drill configuration, the angle of the first relief angle 211 of the end edge 210 of the cutting head 200 is 7 ± 1 °, and the angle of the second relief angle 212 of the end edge 210 of the cutting head 200 is 28 ± 2 °.
The drill tip 220 of the tool bit 200 is inclined at an angle of-1.
With particular reference to fig. 5, the front end of the first peripheral edge 230 of the cutting head 200 is connected to the rear end of the second peripheral edge 250 by a first groove 240, and the front end of the second peripheral edge 250 of the cutting head 200 is connected to the front end of the second peripheral edge 250 by a second groove 260. The rake angle of the first peripheral edge 230 or the second peripheral edge 250 (the rake angle 231 of the first peripheral edge 230 in the drawing) is 6 ± 1 °. The core diameter 201 of the cutting insert 200 is 0.1mm.
The width of the first peripheral edge 230 or the second peripheral edge 250 is 0.03mm.
With particular reference to fig. 4, the chisel edge angle of the end tooth of the first peripheral edge 230 is 40 °, and the rotation angle from the flute of the second peripheral edge 250 to the cutting edge is 30 ± 1 °.
With particular reference to fig. 6, the tip axial inclination angle 205 of the tool bit 200 is 60 deg. the flute axial inclination angle of the tool bit.
With particular reference to fig. 1, the drill structure includes a bit portion 202, a step body 203 connected to the bit portion 202, and a cylindrical body 204 disposed at a rear end of the step body 203. The inclination angle of the step body 203 is 28 °.
The length of the knife head portion 202 is 0.4+0.05-0.1mm. The width of knife head portion 202 is 0.25+0.02 mm.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above.
It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are intended to illustrate the principles of the invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined by the appended claims and their equivalents.
Claims (6)
1. A high performance monolithic cemented carbide coated drill bit construction comprising:
a handle part, the first end of the handle part is connected with a cutter head through a step part,
a second end of the tool shank part is provided with a chamfer structure;
the cutter head is of a drill bit structure, and the angle of a first back angle of the end edge of the cutter head is 7 +/-1 degrees;
the angle of the second relief angle of the end edge of the cutter head is 28 +/-2 degrees;
the front end of the first peripheral edge of the cutter head is connected with the rear end of the second peripheral edge through a first groove;
the front end of the second peripheral edge of the cutter head is connected with the front end of the second peripheral edge through a second groove;
the angle of the rake angle of the first peripheral edge or the second peripheral edge is 6 ± 1 °;
the chisel edge angle of the end teeth of the drill bit structure is 40 degrees;
the rotation angle from the chip flute to the cutting edge of the drill bit structure is 30 +/-1 degrees;
the axial inclination angle of the chip groove of the cutter head is 60 degrees;
the drill point angle of the drill bit structure is 118 degrees;
the helix angle of the drill bit structure is 35 degrees.
2. A high performance monolithic cemented carbide coated drill bit construction as claimed in claim 1, wherein the core diameter of the insert is 0.1mm.
3. The high performance monolithic cemented carbide coated drill bit construction of claim 1, comprising a bit section, a step body connecting the bit section and a cylinder body disposed at a rear end of the step body; the inclination angle of the step body is 28 degrees.
4. The high performance monolithic cemented carbide coated drill bit construction of claim 1, wherein the step portion is inclined at an angle of 32 °.
5. The high performance monolithic cemented carbide coated drill bit structure of claim 1, characterized in that the length of the bit portion is 0.4+0.05-0.1mm.
6. The high performance monolithic cemented carbide coated drill bit structure of claim 1, wherein the diameter of the nose portion is 0.25+0.020mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222277151.4U CN218694199U (en) | 2022-08-29 | 2022-08-29 | High-performance integral hard alloy coating drill bit structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222277151.4U CN218694199U (en) | 2022-08-29 | 2022-08-29 | High-performance integral hard alloy coating drill bit structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218694199U true CN218694199U (en) | 2023-03-24 |
Family
ID=85631607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222277151.4U Active CN218694199U (en) | 2022-08-29 | 2022-08-29 | High-performance integral hard alloy coating drill bit structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218694199U (en) |
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2022
- 2022-08-29 CN CN202222277151.4U patent/CN218694199U/en active Active
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