CN207171030U - Drill bit for drilling deep hole - Google Patents
Drill bit for drilling deep hole Download PDFInfo
- Publication number
- CN207171030U CN207171030U CN201721048193.3U CN201721048193U CN207171030U CN 207171030 U CN207171030 U CN 207171030U CN 201721048193 U CN201721048193 U CN 201721048193U CN 207171030 U CN207171030 U CN 207171030U
- Authority
- CN
- China
- Prior art keywords
- chip
- drillstock
- blade
- drill bit
- deep hole
- 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.)
- Active
Links
- 238000005553 drilling Methods 0.000 title claims abstract description 25
- 210000002421 cell wall Anatomy 0.000 claims abstract description 8
- 230000000149 penetrating effect Effects 0.000 claims abstract description 3
- ZVWKZXLXHLZXLS-UHFFFAOYSA-N zirconium nitride Chemical compound [Zr]#N ZVWKZXLXHLZXLS-UHFFFAOYSA-N 0.000 claims description 6
- 238000003754 machining Methods 0.000 description 6
- 238000007599 discharging Methods 0.000 description 3
- 241001074085 Scophthalmus aquosus Species 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Abstract
The utility model discloses the drill bit for drilling deep hole, including guide cone, cutter hub, blade and drillstock, the cutter hub is provided with taper type working end, and the guide cone is located at the top center of the taper type working end；The quantity of the blade is two panels, is symmetrically set on the taper type working end, and the blade is provided with inclined main cutting edge and the front cutting edge of axial direction；The blade is provided with chip-breaker, the cutter hub is provided with two symmetrical chip areas, the chip area is connected with the chip-breaker, two chip areas are respectively arranged with the V-shaped groove for penetrating the guide cone vertex of a cone, the V-shaped groove is arranged to blade with the seamed edge that the guide cone intersects, and the cell wall of the chip area is distributed with multiple hemispherical dimples；The drillstock includes the first drillstock and the second drillstock, and first drillstock is provided with two symmetrical channel of chip removal, and the channel of chip removal is connected with the chip area.The utility model steering capability is good, drilling is steady, easy chip removal, crudy are high.
Description
Technical field
Drilling tool field is the utility model is related to, concretely relates to the drill bit for drilling deep hole.
Background technology
Deep hole machining generally refers to the processing in the hole of the ratio between hole depth and aperture >=10, due to the particularity of deep hole machining, shape
It is that chip discharge is difficult and guidance quality is poor into deep hole machining main bugbear.
Deep hole drill typically uses interior chip discharging structure, and chip removal is carried out dependent on the chip-removal hole inside spray desorption system and cutter hub,
But such a Deep-Hole Drilling Technology energy consumption is higher, and is not useable for metal drilling machine, do not configured on current metal drilling machine and interior chip removal
The chip removal system that the drill bit of structure is engaged, external chip discharging formula drill bit can only be installed and carry out Drilling operation, in the prior art, external chip discharging
The chip during chip removal of formula drill bit is unavoidable to produce friction with hole wall and chip area, makes chip be easier to fracture and is stuck in brill
Between head and workpiece.
In addition, during chip removal, due to the cell wall smoother of chip area, chip area is narrow, easily with last shape chip
Fitting is close so that chip is difficult to discharge, and causes chip removal not smooth, influences the performance of drill bit and the efficiency of drilling.
In deep hole machining, because the ratio between hole depth and aperture are big, general drilling tool guidance quality is inadequate, and easy deflection can not be quick
Smoothly processing.
In addition, there are three kinds of drilling deep hole instruments at present:Drill gun, BTA depth drills, jet drilling, but its auxiliary equipment is various, also
It is not widely to use.
Utility model content
The purpose of this utility model is to provide the drill bit for drilling deep hole, and its chip removal is smooth, and guidance quality is good.
To achieve the above object, the utility model uses following technical scheme：
For the drill bit of drilling deep hole, including guide cone, cutter hub, blade and drillstock, the cutter hub is provided with taper type working end,
The guide cone is located at the top center of the taper type working end；The quantity of the blade is two panels, is symmetrically set in the cone
On platform shape working end, the blade is provided with inclined main cutting edge and the front cutting edge of axial direction, the tread degree of the main cutting edge
Reduced by outer end inboard end；The blade is provided with chip-breaker, and the cutter hub is provided with two symmetrical chip areas, the chip removal
Groove is connected with the chip-breaker, and two chip areas are respectively arranged with the V-shaped groove for penetrating the guide cone vertex of a cone, the V
Shape groove is arranged to blade with the seamed edge that the guide cone intersects, and the cell wall of the chip area is distributed with multiple hemispherical dimples；
The drillstock includes the first drillstock and the second drillstock, and first drillstock is connected with the cutter hub, second drillstock with it is described
First drillstock is connected using engagement thread；First drillstock is provided with two symmetrical channel of chip removal, the channel of chip removal and institute
Chip area is stated to be connected.
Preferably, the chip-breaker is located at blade at inner side 1/3rd.
Preferably, the blade is fixed on the taper type working end by screw.
Preferably, a diameter of 0.2-0.3mm of the hemispherical dimples.
Preferably, blade and the guide cone coating surface has zirconium nitride layer.
Preferably, the thickness of the zirconium nitride layer is 0.2-0.3mm.
After adopting the above technical scheme, the utility model has the following advantages that：
1st, the utility model blade is provided with chip-breaker, chip caused by cutting can be cut into segment, effectively blocks and cuts
The splashing of bits, and chip is not wound on cutter hub, avoid damage of the chip to cutter hub；Cutter hub is provided with chip area,
First drillstock is provided with channel of chip removal, and channel of chip removal can keep deep hole machining chip removal unobstructed with chip area.
2nd, the cell wall of chip area is spaced apart provided with hemispherical dimples, last shape chip is not bonded cell wall completely, is beneficial to
The smooth discharge of chip.
3rd, guide cone has blade, shares part cutting force, while for improving positioning precision, have steering capability.Knife
The axial front cutting edge of piece, for strengthening steering capability.
4th, the utility model steering capability is good, drilling is steady, easy chip removal, crudy are high.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Reference numeral explanation:
Guide cone 1, V-shaped groove 11, blade 12, blade 2, main cutting edge 21, front cutting edge 22, chip-breaker 23, cutter hub 3, row
Consider groove 31, hemispherical dimples 311, drillstock 4, the first drillstock 41, channel of chip removal 411, the second drillstock 42 to be worth doing.
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.
With reference to figure 1, the utility model discloses the drill bit for drilling deep hole, including guide cone 1, cutter hub 3, blade 2 and brill
Handle 4.
Cutter hub 3 is provided with taper type working end, and guide cone 1 is located at the top center of taper type working end.
The quantity of blade 2 is two panels, is symmetrically set on taper type working end and (is fixed by screw), and blade 2, which is provided with, to be tilted
Main cutting edge 21 and axial direction front cutting edge 22, the tread degree of main cutting edge 21 reduces by outer end inboard end.Blade 2 is close to interior
Chip-breaker 23 is provided with side 1/3rd.
Cutter hub 3 is provided with two symmetrical chip areas 31, and chip area 31 is connected with chip-breaker 23, and two chip areas 31 divide
The V-shaped groove 11 of the insertion vertex of a cone of guide cone 1 is not provided with, and V-shaped groove 11 is arranged to blade 12 with the seamed edge that guide cone 1 intersects, and is oriented to
Cone 1 shares part cutting force, while for improving positioning precision, has steering capability.
The cell wall of chip area 31 is distributed with multiple hemispherical dimples 311, a diameter of 0.2- of hemispherical dimples 311
0.3mm.Hemispherical dimples 311 make last shape chip not to be bonded cell wall completely, beneficial to the smooth discharge of chip.
Drillstock 4 includes the first drillstock 41 and the second drillstock 42, and the first drillstock 41 is connected with cutter hub 3, the second drillstock 42 and
One drillstock 41 is connected using engagement thread, can be according to using needs, using the second drillstock 42 of different length specification, with more preferable
The hole suitable for drilling different depth.First drillstock 41 is provided with two symmetrical channel of chip removal 411, channel of chip removal 411 and row
Bits groove 31 is connected.
Blade 2 and the coating surface of guide cone 1 have zirconium nitride layer.The thickness of zirconium nitride layer is 0.2-0.3mm, is effectively improved hard
Degree, wearability and inoxidizability, extend service life, improve operating efficiency.
The utility model blade 2 is provided with chip-breaker 23, chip caused by cutting can be cut into segment, effectively blocked
The splashing of chip, and chip is not wound on cutter hub 3, avoid damage of the chip to cutter hub 3；Cutter hub 3 is provided with row
Consider groove 31 to be worth doing, the first drillstock 41 is provided with channel of chip removal 411, and channel of chip removal 411 can keep deep hole machining chip removal unobstructed with chip area 31.
Claims (6)
1. the drill bit for drilling deep hole, it is characterised in that：Including guide cone, cutter hub, blade and drillstock, the cutter hub is provided with frustum
Shape working end, the guide cone are located at the top center of the taper type working end；The quantity of the blade is two panels, is symmetrically set
In on the taper type working end, the blade is provided with inclined main cutting edge and the front cutting edge of axial direction, the main cutting edge
Tread degree reduced by outer end inboard end；The blade is provided with chip-breaker, and the cutter hub is provided with two symmetrical chip areas,
The chip area is connected with the chip-breaker, and two chip areas are respectively arranged with the V-arrangement for penetrating the guide cone vertex of a cone
Groove, the V-shaped groove are arranged to blade with the seamed edge that the guide cone intersects, and the cell wall of the chip area is distributed with multiple hemisphere
Shape pit；The drillstock includes the first drillstock and the second drillstock, and first drillstock is connected with the cutter hub, second drillstock
It is connected with first drillstock using engagement thread；First drillstock is provided with two symmetrical channel of chip removal, and the chip removal is led to
Road is connected with the chip area.
2. it is used for the drill bit of drilling deep hole as claimed in claim 1, it is characterised in that：The chip-breaker is located at blade close to inner side
At 1/3rd.
3. it is used for the drill bit of drilling deep hole as claimed in claim 2, it is characterised in that：The blade is fixed on described by screw
On taper type working end.
4. it is used for the drill bit of drilling deep hole as claimed in claim 1, it is characterised in that：A diameter of 0.2- of the hemispherical dimples
0.3mm。
5. the drill bit for drilling deep hole as described in claim any one of 1-4, it is characterised in that：Blade and the guide cone table
Face is plated with zirconium nitride layer.
6. it is used for the drill bit of drilling deep hole as claimed in claim 5, it is characterised in that：The thickness of the zirconium nitride layer is 0.2-
0.3mm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721048193.3U CN207171030U (en) | 2017-08-21 | 2017-08-21 | Drill bit for drilling deep hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721048193.3U CN207171030U (en) | 2017-08-21 | 2017-08-21 | Drill bit for drilling deep hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207171030U true CN207171030U (en) | 2018-04-03 |
Family
ID=61741632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721048193.3U Active CN207171030U (en) | 2017-08-21 | 2017-08-21 | Drill bit for drilling deep hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207171030U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108927555A (en) * | 2018-09-11 | 2018-12-04 | 浙江甬岭数控刀具有限公司 | Indexable depth drill |
-
2017
- 2017-08-21 CN CN201721048193.3U patent/CN207171030U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108927555A (en) * | 2018-09-11 | 2018-12-04 | 浙江甬岭数控刀具有限公司 | Indexable depth drill |
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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 | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A drill bit for boring deep hole Effective date of registration: 20200513 Granted publication date: 20180403 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 | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20231025 Granted publication date: 20180403 Pledgee: Bank of China Limited Xiamen hi tech Park sub branch Pledgor: XIAMEN XIAZHI TECHNOLOGY TOOLS CO.,LTD. Registration number: Y2020980002190 |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240110 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. |