CN106735460B - A kind of vacuum welding formula Superhard Drill - Google Patents
A kind of vacuum welding formula Superhard Drill Download PDFInfo
- Publication number
- CN106735460B CN106735460B CN201611219721.7A CN201611219721A CN106735460B CN 106735460 B CN106735460 B CN 106735460B CN 201611219721 A CN201611219721 A CN 201611219721A CN 106735460 B CN106735460 B CN 106735460B
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- angle
- superhard
- drilling head
- cutting
- edge
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/02—Twist drills
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/06—Drills with lubricating or cooling equipment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2251/00—Details of tools for drilling machines
- B23B2251/04—Angles, e.g. cutting angles
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling Tools (AREA)
Abstract
The invention discloses a kind of vacuum welding formula Superhard Drills, including handle of a knife and with its integrally formed cutter hub, the chip space of spiral is offered on the cutter hub, welding groove is offered in the lower end of the cutter hub, there is superhard drilling head in the welding groove interior welds, the cutting slot being connected with chip space is offered on the superhard drilling head, the superhard drilling head includes cutting portion, middle part and tail portion, the middle part is arranged between cutting portion and tail portion, the nose angle of the superhard drilling head is 120 140 °, main angle of cutting edge is 30 40 °, main edge clearance angle is 26 °, auxiliary angle is 24 °, chisel edge angle is 46 50 °, chisel edge anterior angle is 62 64 °, chisel edge relief angle is 26 28 ° and cutting edge inclination is 8 10 °.Drilling head of the present invention is not easy to wear in drilling process, and wear-resisting property is good, and service life is long, can process the higher workpiece of precision, high in machining efficiency, processing cost is low.
Description
Technical field
The present invention relates to bit technique fields, are related specifically to a kind of vacuum welding formula Superhard Drill.
Background technology
When being processed to workpiece, the contact of drill bit and workpiece is exactly connecing between the main cutting edge of drill bit and workpiece
Touch, the component for needing to process quickly cut by the main cutting edge of drilling head, due to cutting speed is fast and cuts workpiece due to
The variation of temperature is more and more harder, and then more demanding to the wear-resisting property of drilling head, particularly with some difficult to machine materials
Speech, such as titanium alloy, aluminium alloy, titanium-aluminium alloy etc. require higher to the wear-resisting property of drilling head.
And the drilling head of the prior art is easily worn in drilling process, wear-resisting property is poor, seriously reduces drill bit
Service life；Another, the drill bit of the prior art is not only difficult to out the higher workpiece of precision, and processing efficiency is extremely low,
To improve the processing cost of workpiece, larger inconvenience is brought to the processing of workpiece.
However in view of the deficiencies of the prior art, developer it is necessary to develop a kind of reasonable design, simple in structure, drilling head exists
Not easy to wear in drilling process, wear-resisting property is good, and service life is long, can process the higher workpiece of precision, high in machining efficiency,
The low vacuum welding formula Superhard Drill of processing cost.
Invention content
In order to solve the problems existing in the prior art, the object of the invention provides a kind of reasonable design, simple in structure, drilling head
Not easy to wear in drilling process, wear-resisting property is good, and service life is long, can process the higher workpiece of precision, processing efficiency
Height, the low vacuum welding formula Superhard Drill of processing cost.
In order to solve the above technical problems, the present invention is realized using following technical scheme：
A kind of vacuum welding formula Superhard Drill, including handle of a knife and with its integrally formed cutter hub, opened up on the cutter hub
There is the chip space of spiral, which is characterized in that offer welding groove in the lower end of the cutter hub, have in the welding groove interior welds
Superhard drilling head, offers the cutting slot being connected with chip space on the superhard drilling head, and the superhard drilling head includes
Cutting portion, middle part and tail portion, the middle part are arranged between cutting portion and tail portion, and the nose angle of the superhard drilling head is 120-
140 °, main angle of cutting edge be 30-40 °, main edge clearance angle is 2-6 °, auxiliary angle is 2-4 °, chisel edge angle is 46-50 °, chisel edge anterior angle is
62-64 °, chisel edge relief angle is 26-28 ° and cutting edge inclination is 8-10 °.
In a preferred embodiment of the invention, the nose angle of the superhard drilling head is 120 °, main angle of cutting edge is
35 °, main edge clearance angle be 4 °, auxiliary angle is 3 °, chisel edge angle is 48 °, chisel edge anterior angle is 63 °, chisel edge relief angle is 27 ° and cutting edge inclination
It is 9 °.
In a preferred embodiment of the invention, the helical angle of the chip space is 16-20 °.
In a preferred embodiment of the invention, the cutting portion of the superhard drilling head is in integrally cone, described super
The middle part of hard drilling head is integrally cylinder, and the cross section of the tail portion of the superhard drilling head is triangle.
In a preferred embodiment of the invention, the superhard lead plug head is fabricated using polycrystalline diamond material.
In a preferred embodiment of the invention, cooling fluid apertures is offered on the superhard drilling head, in the knife
Handle and cutter hub are internally provided with cooling liquid flowing channel, and one end of the cooling liquid flowing channel is arranged on the upper end of handle of a knife, the coolant liquid
The other end of runner is connected with cooling fluid apertures.
In a preferred embodiment of the invention, the first knife face, the second knife face of the tail portion of the superhard drilling head are logical
Vacuum welding mode is crossed to be respectively welded in welding groove.
Compared with prior art, the present invention offers welding groove in the lower end of cutter hub, has in welding groove interior welds superhard
Drilling head, offers the cutting slot being connected with chip space on superhard drilling head, superhard drilling head include cutting portion, middle part and
Tail portion, middle part are arranged between cutting portion and tail portion, and adopting the structure can keep drilling head not easy to wear in drilling process,
Improve the wear-resisting property and service life of the drill bit；Another, the nose angle of superhard drilling head is 120-140 °, main angle of cutting edge
For 30-40 °, main edge clearance angle be 2-6 °, auxiliary angle is 2-4 °, chisel edge angle is 46-50 °, chisel edge anterior angle is 62-64 °, after chisel edge
Angle is 26-28 ° and cutting edge inclination is 8-10 °, and the combination of such angle can effectively improve the machining accuracy of drill bit, Neng Goujia
Work goes out the higher workpiece of precision, further improves processing efficiency, while reducing processing cost.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Obtain other attached drawings according to these attached drawings.
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is the A-A sectional views of Fig. 2.
Fig. 4 is the B-B sectional views of Fig. 2.
Fig. 5 is the C-C sectional views of Fig. 3.
Specific implementation mode
In order to make the technical means, the creative features, the aims and the efficiencies achieved by the present invention be easy to understand, tie below
Conjunction is specifically illustrating, and the present invention is further explained.
Referring to Fig.1 shown in-Fig. 5, a kind of vacuum welding formula Superhard Drill provided in figure, including handle of a knife 100 and and one
Body formed cutter hub 200.
The chip space 210 of spiral is offered on cutter hub 200, the helixangleβ of chip space 210 is 16-20 °, it can be ensured that
Clast is discharged from chip space 210, improves the machining accuracy of workpiece, and the helixangleβ of chip space 210 is in the present embodiment
18°。
Welding groove 220 is offered in the lower end of cutter hub 200, has superhard drilling head 300 in 220 interior welds of welding groove, is surpassed
The first knife face 331 and the second knife face 332 of the tail portion 330 of hard drilling head are respectively welded at welding groove by vacuum welding mode
In 220, the first knife face 331 and the second knife face 332 are inclined surface, can increase the bonding area with welding groove 220, inclination angle
Degree is 25-40 °, effectively raises stability of the superhard drilling head 300 inside welding groove 220.
The cutting slot 340 being connected with chip space 210 is offered on superhard drilling head 300, superhard drilling head 300 includes
Cutting portion 310, middle part 320 and tail portion 330, middle part 320 are arranged between cutting portion 310 and tail portion 330, superhard drilling head 300
Cutting portion 310 it is whole in cone, whole cylinder, the tail of superhard drilling head 300 in middle part 320 of superhard drilling head 300
The cross section in portion 330 is triangle, and adopting the structure can make superhard drilling head 300 not easy to wear in drilling process, carry
The high wear-resisting property and service life of the drill bit.
The nose angle Ф of superhard drilling head 300 is 120-140 °, main angle of cutting edge γ ox are 30-40 °, main edge clearance angle α ox are
2-6 °, auxiliary angle Kr ' be 2-4 °, chisel edge angle Ψ is 46-50 °, chisel edge anterior angle γ o Ψ are 62-64 °, chisel edge relief angle α o Ψ are
26-28 ° and cutting edge inclination λ tx is 8-10 °, using the combination of such angle, can effectively improve the machining accuracy of drill bit, can
The higher workpiece of precision is processed, further improves processing efficiency, while reducing processing cost.
The nose angle Ф of superhard drilling head 300 is 120 ° in the present embodiment, main angle of cutting edge γ ox are 35 °, main edge clearance angle α
Ox is 4 °, auxiliary angle Kr ' is 3 °, chisel edge angle Ψ is 48 °, chisel edge anterior angle γ o Ψ are 63 °, chisel edge relief angle α o Ψ are 27 ° and sword
Inclination angle λ tx are 9 °.
Superhard drilling head 300 is fabricated using polycrystalline diamond material, 300 energy of superhard drilling head adopted the structure
Its whole wear-resisting property and hardness are enough improved, the service life of superhard drilling head 300 is further improved.
Cooling fluid apertures 350 is offered on superhard drilling head 300, and cooling liquid stream is internally provided in handle of a knife 100 and cutter hub 200
The one end in road, cooling liquid flowing channel is arranged on the upper end of handle of a knife 100, and the other end of cooling liquid flowing channel is connected with cooling fluid apertures 350
Logical, coolant liquid is ejected at cutting zone by cooling liquid flowing channel and cooling fluid apertures 350 under a certain pressure, can effectively drop
Temperature at low superhard drilling head 300 and workpiece cutting, improves the service life of superhard drilling head 300, while also improving
The machining accuracy of workpiece.
The present invention offers welding groove in the lower end of cutter hub in summary, has superhard drilling head in welding groove interior welds,
Offering the cutting slot being connected with chip space on superhard drilling head, superhard drilling head includes cutting portion, middle part and tail portion, in
Portion is arranged between cutting portion and tail portion, and adopting the structure can keep drilling head not easy to wear in drilling process, improve
The wear-resisting property and service life of the drill bit；Another, the nose angle of superhard drilling head is 120-140 °, main angle of cutting edge is 30-
40 °, main edge clearance angle be 2-6 °, auxiliary angle is 2-4 °, chisel edge angle is 46-50 °, chisel edge anterior angle is 62-64 °, chisel edge relief angle is
26-28 ° is 8-10 ° with cutting edge inclination, and the combination of such angle can effectively improve the machining accuracy of drill bit, can process
The higher workpiece of precision, further improves processing efficiency, while reducing processing cost.
The basic principles, main features and advantages of the present invention have been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, various changes and improvements may be made to the invention without departing from the spirit and scope of the present invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent defines.
Claims (7)
1. a kind of vacuum welding formula Superhard Drill, including handle of a knife and with its integrally formed cutter hub, offered on the cutter hub
The chip space of spiral, which is characterized in that offer welding groove in the lower end of the cutter hub, have in the welding groove interior welds super
Hard drilling head, offers the cutting slot being connected with chip space on the superhard drilling head, and the superhard drilling head includes cutting
Portion, middle part and tail portion are cut, the middle part is arranged between cutting portion and tail portion, and the nose angle of the superhard drilling head is 120-
140 °, main angle of cutting edge be 30-40 °, main edge clearance angle is 2-6 °, auxiliary angle is 2-4 °, chisel edge angle is 46-50 °, chisel edge anterior angle is
62-64 °, chisel edge relief angle is 26-28 ° and cutting edge inclination is 8-10 °.
2. a kind of vacuum welding formula Superhard Drill as described in claim 1, it is characterised in that：The point of a knife of the superhard drilling head
Angle is 120 °, main angle of cutting edge is 35 °, main edge clearance angle is 4 °, auxiliary angle is 3 °, chisel edge angle is 48 °, chisel edge anterior angle is 63 °, horizontal
Edge clearance angle is 27 ° and cutting edge inclination is 9 °.
3. a kind of vacuum welding formula Superhard Drill as described in claim 1, it is characterised in that：The helical angle of the chip space is
16-20°。
4. a kind of vacuum welding formula Superhard Drill as described in claim 1, it is characterised in that：The cutting of the superhard drilling head
Portion is in integrally cone, and the middle part of the superhard drilling head is integrally cylinder, the cross section of the tail portion of the superhard drilling head
For triangle.
5. a kind of vacuum welding formula Superhard Drill as described in claim 1, it is characterised in that：The superhard lead plug head is using poly-
Diamond material manufacture forms.
6. a kind of vacuum welding formula Superhard Drill as described in claim 1, it is characterised in that：It is opened on the superhard drilling head
Equipped with cooling fluid apertures, it is internally provided with cooling liquid flowing channel in the handle of a knife and cutter hub, one end of the cooling liquid flowing channel is arranged in knife
On the upper end of handle, the other end of the cooling liquid flowing channel is connected with cooling fluid apertures.
7. a kind of vacuum welding formula Superhard Drill as described in claim 1, it is characterised in that：The tail portion of the superhard drilling head
The first knife face, the second knife face is respectively welded at by vacuum welding mode in welding groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611219721.7A CN106735460B (en) | 2016-12-26 | 2016-12-26 | A kind of vacuum welding formula Superhard Drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611219721.7A CN106735460B (en) | 2016-12-26 | 2016-12-26 | A kind of vacuum welding formula Superhard Drill |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106735460A CN106735460A (en) | 2017-05-31 |
| CN106735460B true CN106735460B (en) | 2018-09-21 |
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ID=58926879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611219721.7A Active CN106735460B (en) | 2016-12-26 | 2016-12-26 | A kind of vacuum welding formula Superhard Drill |
Country Status (1)
| Country | Link |
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| CN (1) | CN106735460B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111515800B (en) * | 2020-04-28 | 2021-07-27 | 厦门厦芝科技工具有限公司 | V-arrangement welded structure processing and counterpoint verifying attachment of drill bit |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3387511A (en) * | 1966-05-02 | 1968-06-11 | Lockheed Aircraft Corp | Twist drill |
| CN2481440Y (en) * | 2001-06-01 | 2002-03-13 | 武进市西夏墅工具研究所 | Strong hard alloy drill |
| CN103658769B (en) * | 2012-09-26 | 2016-12-07 | 深圳市中天精密工具有限公司 | Polycrystalline diamond compact bit and manufacture method thereof |
| CN203109310U (en) * | 2013-01-05 | 2013-08-07 | 郑州市钻石精密制造有限公司 | Welding diamond drill reamer |
| CN205289858U (en) * | 2015-12-04 | 2016-06-08 | 常州精美特精密工具有限公司 | Inlay alloy bit |
| CN206519606U (en) * | 2016-12-26 | 2017-09-26 | 上海誉和钻石工具有限公司 | A kind of vacuum welding formula Superhard Drill |
-
2016
- 2016-12-26 CN CN201611219721.7A patent/CN106735460B/en active Active
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| Publication number | Publication date |
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| CN106735460A (en) | 2017-05-31 |
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