CN207119827U - A kind of combination type drill bit - Google Patents
A kind of combination type drill bit Download PDFInfo
- Publication number
- CN207119827U CN207119827U CN201721047725.1U CN201721047725U CN207119827U CN 207119827 U CN207119827 U CN 207119827U CN 201721047725 U CN201721047725 U CN 201721047725U CN 207119827 U CN207119827 U CN 207119827U
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- CN
- China
- Prior art keywords
- drill bit
- chip removal
- combination type
- shank
- type drill
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000000463 material Substances 0.000 description 6
- 241001074085 Scophthalmus aquosus Species 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
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- Drilling Tools (AREA)
Abstract
The utility model discloses a kind of combination type drill bit, including concentric and be sequentially connected the apex point end connect, chip removal end, transitioning end and shank, the chip removal end and the shank are all cylindric, and the cross sectional radius at the chip removal end is less than the cross sectional radius of the shank.Combination type drill bit provided by the utility model can effective chip removal, it is good to hold bits performance, the service life of drill bit length.
Description
Technical field
The utility model belongs to cutting element field, more particularly, to a kind of combination type drill bit.
Background technology
With the development of printed circuit board (PCB) technology and product, to the microbit for processing printed circuit board
It is required that also more and more higher.PCB is a kind of complex-shaped capillary processing work with helicla flute with microbit (the micro- brills of abbreviation PCB)
Tool, is derived by traditional fluted drill.The micro- brill sizes of PCB are small, and its apex point structure will could be observed by light microscope
Arrive.Current most of PCB producers carry out processing PCB using numerical control drilling machine, and digital control hole drilling is the important step of printed board processing procedure, due to
PCB material is different from metal, so PCB processing is also different from traditional intermetallic composite coating, PCB is by materials such as resin and copper-clad plates
Material is made, the chip area discharge being not easy in High-speed machining by brill body of such material, therefore the chip removal performance of the micro- brills of PCB
And hold bits performance and be directly connected to the thick performance in hole of drill bit and lose performance.
Utility model content
The purpose of this utility model is to provide a kind of combination type drill bit, its can effective chip removal, it is good to hold bits performance, drill bit
Service life length.
To achieve the above object, the utility model uses following technical scheme：
A kind of combination type drill bit, including it is concentric and be sequentially connected the apex point end connect, chip removal end, transitioning end and shank；Institute
It is all cylindric to state chip removal end and the shank, and the cross sectional radius at the chip removal end is less than the cross section half of the shank
Footpath；The transitioning end is truncated cone-shaped.Preferably, the chip removal end includes at least two debris guide grooves.
Preferably, the chip removal guide groove extends to the transitioning end from the apex point end, and groove width gradually increases.
Preferably, the combination type drill bit also includes stomata, and the stomata includes inlet end and the outlet side mutually run through,
For the inlet end located at the shank and connection air supply plant, the outlet side is located at the transitioning end.
Preferably, described transitioning end one end cross sectional dimensions is equal to the cross sectional dimensions at the chip removal end, and the other end is equal to
The cross sectional dimensions of the shank.
After adopting the above technical scheme, the utility model compared with background technology, has the following advantages that：
First, drill bit described in the utility model is divided into four sections, when the brill tip falls, only need to scrap the apex point
End, other sections may be reused, and save consumptive material.
2nd, the chip removal end that drill bit described in the utility model includes carries out nature row by the chip removal guide groove of spiral
Bits, groove width increases successively so that chip removal performance and appearance consider performance enhancement to be worth doing, and chip is drained at the transitioning end to be departed from naturally, and due to
The radial dimension at chip removal end is less than the radial dimension of the shank, and the transitioning end is truncated cone-shaped, and chip removal performance is more preferable, in addition
Coordinate air supply plant, the gas blown out from the outlet side of the transitioning end would be even more beneficial to blow out chip, increase appearance
Consider chip removal performance to be worth doing, effectively increase the thick performance in hole of drill bit and lose performance, extend the service life of drill bit.
Brief description of the drawings
Fig. 1 is a kind of structural representation of combination type drill bit provided by the utility model；
Fig. 2 is a kind of cut-away view at the secondary chip removal end of combination type drill bit shown in Fig. 1.
Embodiment
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation
Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only explaining
The utility model, it is not used to limit the utility model.
Embodiment
Please refer to Fig. 1 and Fig. 2, the utility model discloses a kind of combination type drill bit, including concentric and phase successively
Apex point end 11, chip removal end 12, transitioning end 15 and the shank 13 of connection.Chip removal end 12 and shank 13 are all cylindric, and chip removal end
12 cross sectional radius is less than the cross sectional radius of shank 13；Transitioning end 15 is truncated cone-shaped, and one end cross section is equal to chip removal end 12
Cross section, the other end be equal to shank 13 cross section.
Chip removal end 12 includes at least two debris guide grooves 14.Chip removal guide groove 14 extends to transitioning end from apex point end 11
15, and groove width gradually increases.
The combination type drill bit also includes stomata, and stomata includes inlet end 131 and the outlet side 133 mutually run through, air inlet
Located at the shank 13 and connection air supply plant, outlet side 133 is located at transitioning end 15 at end 131.
After adopting the above technical scheme, the utility model compared with background technology, has the following advantages that：
First, drill bit of the present utility model is divided into four sections, when apex point end 11 exhausts, only need to scrap apex point end 11, other sections
Position may be reused, and save consumptive material.
2nd, the chip removal end 12 that drill bit of the present utility model includes carries out nature chip removal, groove by the chip removal guide groove 14 of spiral
Wide increase successively causes chip removal performance and holds bits performance enhancement, and chip is drained at transitioning end 15 to be departed from naturally, and due to chip removal end
12 radial dimension is less than the radial dimension of shank 13, and transitioning end 15 is truncated cone-shaped, and chip removal performance is more preferable, coordinates in addition and supplies gas
Device, the gas blown out from the outlet side 133 of transitioning end 15 would be even more beneficial to blow out chip, increase appearance bits chip removal performance,
Effectively increase the thick performance in hole of drill bit and lose performance, extend the service life of drill bit.
It is described above, the only preferable embodiment of the utility model, but the scope of protection of the utility model is not
This is confined to, any one skilled in the art can readily occur in the technical scope that the utility model discloses
Change or replacement, should all cover within the scope of protection of the utility model.Therefore, the scope of protection of the utility model should
It is defined by scope of the claims.
Claims (5)
1. a kind of combination type drill bit, it is characterised in that including concentric and be sequentially connected the apex point end connect, chip removal end, transitioning end
And shank；The chip removal end and the shank are all cylindric, and the cross sectional radius at the chip removal end is less than the shank
Cross sectional radius；The transitioning end is truncated cone-shaped.
A kind of 2. combination type drill bit as claimed in claim 1, it is characterised in that：The chip removal end includes at least two spiral rows
Consider guide groove to be worth doing.
A kind of 3. combination type drill bit as claimed in claim 2, it is characterised in that：The chip removal guide groove extends from the apex point end
To the transitioning end, and groove width gradually increases.
A kind of 4. combination type drill bit as claimed in claim 3, it is characterised in that：The combination type drill bit also includes stomata, institute
Inlet end and outlet side that stomata includes mutually running through are stated, the inlet end is described located at the shank and connection air supply plant
Outlet side is located at the transitioning end.
5. a kind of combination type drill bit as claimed in claim 4, it is characterised in that described transitioning end one end cross sectional dimensions is equal to
The cross sectional dimensions at the chip removal end, the other end are equal to the cross sectional dimensions of the shank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721047725.1U CN207119827U (en) | 2017-08-21 | 2017-08-21 | A kind of combination type drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721047725.1U CN207119827U (en) | 2017-08-21 | 2017-08-21 | A kind of combination type drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207119827U true CN207119827U (en) | 2018-03-20 |
Family
ID=61610824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721047725.1U Active CN207119827U (en) | 2017-08-21 | 2017-08-21 | A kind of combination type drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207119827U (en) |
-
2017
- 2017-08-21 CN CN201721047725.1U patent/CN207119827U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Combined type drill bit Effective date of registration: 20200513 Granted publication date: 20180320 Pledgee: Bank of China Limited Xiamen hi tech Park sub branch Pledgor: XIAMEN XIAZHI TECHNOLOGY TOOLS CO.,LTD. Registration number: Y2020980002190 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20231025 Granted publication date: 20180320 Pledgee: Bank of China Limited Xiamen hi tech Park sub branch Pledgor: XIAMEN XIAZHI TECHNOLOGY TOOLS CO.,LTD. Registration number: Y2020980002190 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240118 Address after: No. 9-4, Zhilian Avenue Standard Factory Building, Zhilian Town, High tech Industrial Development Zone, Yingtan City, Jiangxi Province, 335000 Patentee after: Jiangxi Maida Intelligent Technology Co.,Ltd. Address before: 361000 Xiazhi science and technology building, 459 Ma Long Road, torch high tech Zone, Xiamen City, Fujian Province Patentee before: XIAMEN XIAZHI TECHNOLOGY TOOLS CO.,LTD. |
|
| TR01 | Transfer of patent right |