CN206702276U - One kind becomes helicla flute double tapered angle laminated construction drilling integrated tool - Google Patents
One kind becomes helicla flute double tapered angle laminated construction drilling integrated tool Download PDFInfo
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- CN206702276U CN206702276U CN201720341716.7U CN201720341716U CN206702276U CN 206702276 U CN206702276 U CN 206702276U CN 201720341716 U CN201720341716 U CN 201720341716U CN 206702276 U CN206702276 U CN 206702276U
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- drilling
- helicla flute
- ream
- double tapered
- angle
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Abstract
One kind becomes helicla flute double tapered angle laminated construction drilling integrated tool, including drilling portion, ream portion, counter boring portion and handle of a knife, and transition part is set between drilling portion and ream portion and between ream portion and counter boring portion；Drilling portion includes double tapered angle apex point and helicla flute, and double tapered angle apex point includes two main cutting edges, and helicla flute is two right hand helix grooves for extending to transition part between drilling portion and ream portion；Ream portion has four spiral Zhou Ren, including four main cutting edges and corresponding four left-turn spiral grooves for extending to both sides transition part；Counter boring portion includes three main cutting edges and three right hand helix grooves for extending to handle of a knife.The cutter will bore, on the structure assembly of hinge, ream a to cutter, it is disposable to complete laminated material drilling and drill and ream ream processing, it ensure that the precision and axiality of drilling, avoid and twine knife phenomenon, prevent damage of the chip to machined surface, can effective chip breaking, promote chip removal, ensure that tool life, drilling quality and processing efficiency.
Description
Technical field
It the utility model is related to a kind of suitable for the brill of laminated construction difficult-to-machine material precision system hole machined, hinge, ream one
Change cutter, can different physical and mechanical property materials such as aluminium alloy, titanium alloy lamination assembling structure drilling during ensure
Drilling precision, effective chip breaking and chip removal are realized, belongs to machining tool technical field.
Background technology
In order to reduce energy resource consumption, increase Aircraft life, the proportion that aluminium alloy uses with titanium alloy in aircraft is increasingly
It is high.In aircraft assembling process, conventional bolt and rivet link together aluminium alloy and titanium alloy to strengthen performance, and advantage is mutual
Mend.Therefore, it is necessary to process substantial amounts of connecting hole on aluminium alloy and titanium alloy laminated plate.But aluminium alloy and titanium alloy lamination
Assemble drilling aperture is small, difficulty of processing is larger, bored, cut with scissors using traditional multiple operation technique, ream processing is not easy to ensure hole
Axiality, aided process is more, reduces operating efficiency；If bored, cut with scissors, ream integration drilling brings chip breaking difficulty, row again
Bits are not easily caused the problem of cutter easily breaks freely, increase manufacturing cost.
Therefore, boring, in hinge, ream integrated tool design process, how to realize effective chip breaking, avoid chip from twining knife, protect
Card chip is smoothly discharged, and turns into the emphasis of research laminated construction drilling cutter.
Utility model content
The purpose of this utility model is, for problem present in existing minor diameter integrated tool technology, proposes one
Kind becomes helicla flute double tapered angle laminated construction drilling integrated tool, the disposable completion of laminated construction can be bored, hinge, ream finishing
Work, by effective chip breaking, light chip removal, drilling axial force is reduced, to improve hole dimensional accuracy, coaxial accuracy and surface matter
Amount, while cutting speed is ensured, cutter life can be extended, improve processing efficiency.The utility model be applied to thickness compared with
The hole machined of the thin plate lamination assembling structure of small (individual layer is less than 3mm).
Change helicla flute double tapered angle laminated construction drilling integrated tool of the present utility model, using following technical scheme：
The cutter, including drilling portion, ream portion, counter boring portion and handle of a knife, between drilling portion and ream portion and ream portion and
Counter boring is respectively provided with transition part between portion；Drilling portion includes double tapered angle apex point and helicla flute, and double tapered angle apex point includes two main cuttings
Sword, helicla flute are two right hand helix grooves for extending to transition part between drilling portion and ream portion；Ream portion has four spirals
Zhou Ren, including four main cutting edges and corresponding four left-turn spiral grooves for extending to both sides transition part；Counter boring portion includes three
Main cutting edge and three right hand helix grooves for extending to handle of a knife.
The length of the transition part is 4mm~6mm.
The unbearable diameter of double tapered angle apex point is not less than 0.25 times of drilling portion diameter in the drilling portion, to ensure drill bit
Rigidity.
The first cone angle of double tapered angle apex point is 120 °~132 ° in the drilling portion, corresponding first paragraph main cutting edge；Second
Section cone angle is 90 ° of corresponding second segment main cutting edges.
In the drilling portion outer most edge anterior angle of two main cutting edges of double tapered angle apex point be 8 °~12 °, relief angle be 11 °~
15°。
The helical angle of right hand helix groove is 23 °~30 ° in the drilling portion, to ensure Zhou Ren rigidity, intensity and chip removal
Performance.
Spiral week sword outer rim anterior angle γ 1 in the ream portion is 5 °~10 °, and relief angle α 1 is 6 °~10 °, so that ream
It is more steady, it ensure that cutter sharpness, durability and the precision in hole.
The length in the ream portion is equal to all blade portion length of helicla flute in drilling portion.
The helical angle of left-turn spiral groove is left-handed 7 °~12 ° in the ream portion, to be advantageous to ream chip to be added
Work surface direction is discharged, and avoids ream chip from influenceing machined surface quality.
The helical angle of the right hand helix groove in the counter boring portion is 30 °~35 °, the outer rim anterior angle γ 2 in counter boring portion for 5 °~
12°。
The utility model is by that will bore, hinge, the structure of ream are integrated on a cutter successively, realizes laminated material drilling one
Secondary property is completed to bore, cut with scissors, ream processing, ensure that the precision and axiality of drilling；The bipyramid corner structure in drilling portion can effective chip breaking,
Avoid the generation for twining knife phenomenon；The left-turn spiral groove in ream portion promotes chip to be discharged to direction to be processed, it is therefore prevented that chip pair
The damage of machined surface, improves crudy；Transition part adds the rigidity of cutter, and the work of support guide is played to counter boring
With ensure that preferable counter boring quality and cutter life.
It is demonstrated experimentally that under the cooperation of appropriate process parameter, the utility model is drilled with smaller drilling axle than common fried dough twist
To power and more preferable durability.Suitable for the minor diameter of the laminated construction of the difficult-to-machine materials such as aluminium alloy, high temperature alloy, titanium alloy
(being less than 6mm) drilling processing, can effective chip breaking, promote chip removal, ensure that preferable tool life, drilling quality and add
Work efficiency rate.
Brief description of the drawings
Fig. 1 is the overall structure diagram that the utility model becomes helicla flute double tapered angle laminated construction drilling integrated tool.
Fig. 2 is the axial, cross-sectional view of the apex point in drilling portion in the utility model.
Fig. 3 is the radial cross section in ream portion in the utility model.
Fig. 4 is the diagrammatic cross-section of the ream sword in ream portion in the utility model.
Fig. 5 is the radial cross section in the utility model counter boring portion.
In figure：1. drilling portion, 2. First Transition portions, 3. ream portions, 4. second transition parts, 5. counter boring portions, 6. handle of a knifes.
Embodiment
Change helicla flute double tapered angle laminated construction drilling integrated tool of the present utility model, material is hard alloy, and it is tied
Structure is as shown in figure 1, drilling portion 1, First Transition portion 2, ream portion 3, the second transition part 4, counter boring portion 5 and knife including being sequentially connected
Handle 6.First Transition portion 2 is set between drilling portion 1 and ream portion 3, the second transition part 4 is set between ream portion 3 and counter boring portion 5.
The length L5 of the length L3 in First Transition portion 2 and the second transition part 4 is 4mm~6mm, and this both ensure that the rigidity of cutter, also for
Cutter manufacture has stopped withdrawing surplus.A diameter of D3 of handle of a knife 6.
Drilling portion 1 includes double tapered angle apex point and helicla flute.A diameter of D1 in drilling portion 1, infiltrate diameter d1 (referring to Fig. 2) no
Less than 0.25D1, this ensure that the rigidity in drilling portion.To realize effective chip breaking and chip removal, apex point selects bipyramid corner structure, double
Cone angle apex point includes the main cutting edge T1 and T2 of two equal lengths, and two main cutting edges are symmetrical with respect to center line, referring to Fig. 2, this
It ensure that good chip breaking effect；First cone angleCorresponding first paragraph main cutting edge T1,For 120 °~132 °, optimal value is
120°.Second segment cone angleCorresponding second segment main cutting edge T2,For 90 °.The anterior angle of two main cutting edge outer most edges is 8 °
~12 °, relief angle is 11 °~15 °.Helical angle ω 1 corresponding to the helicla flute in drilling portion 1 is 23 °~30 ° of dextrorotation, to ensure Zhou Ren
Rigidity, intensity and chip removal performance；Flute, Zhou Ren and land are corresponding with helicla flute, helicla flute total length is apex point length L1
It is equal with the thickness of processed laminated construction with all blade portion length L2 sums, wherein L2.
There are 4 spiral Zhou Ren in ream portion 3, including 4 main cutting edges and corresponding four extend to both sides First Transition portion 2
With the left-turn spiral groove of the second transition part 4.A diameter of D2 in ream portion 3, its length L4 are equal to the Zhou Ren of helicla flute in drilling portion 1
Partial-length L2.The helical angle ω 2 of helicla flute is left-handed 7 °~12 ° in ream portion 3, and this causes ream chip to work surface
Exclude, the quality of machined surface is effectively guaranteed, referring to Fig. 1.The ream number of teeth selects 4 teeth, spiral week sword outer rim anterior angle γ 1
For 5 °~10 °, relief angle α 1 is 6 °~10 °, referring to Fig. 3, so that ream is more steady, ensure that cutter sharpness, durable
Degree and the precision in hole.As shown in figure 4, close to the one end in First Transition portion 2, the starting taper angle beta 1 of ream sword is 15 °~45 °, is made
Obtaining ream can steadily cut.
Counter boring portion 3 includes three main cutting edges and three right hand helix grooves for extending to handle of a knife 6, is corresponding with helicla flute
Flute, Zhou Ren and land.The cone angle in counter boring portion 5 isThe cone angle in the counter boring portion is according to the angle-determining of engine request.Spiral
Helical angle ω 3 corresponding to groove is 30 °~35 °, and the outer rim anterior angle γ 2 in counter boring portion 3 is 5 °~12 °, referring to Fig. 5.
Above-mentioned cutter is applied to the lamination system of aluminium alloy and difficult-to-machine material (high strength steel, high temperature alloy, titanium alloy etc.)
Hole Precision Machining, the disposable completion of laminated construction is bored, the finishing of hinge, ream, pass through effective chip breaking, promote chip removal, reduce drilling
Axial force, to improve hole dimensional accuracy, coaxial accuracy and surface quality, while processing efficiency is ensured, have good
Durability.
Claims (10)
1. one kind becomes helicla flute double tapered angle laminated construction drilling integrated tool, including drilling portion, ream portion, counter boring portion and knife
Handle, transition part is respectively provided between drilling portion and ream portion and between ream portion and counter boring portion；It is characterized in that：Drilling portion includes double
Cone angle apex point and helicla flute, double tapered angle apex point include the main cutting edge of two equal lengths, and helicla flute is two and extends to drilling portion
The right hand helix groove of transition part between ream portion；Ream portion has four spiral Zhou Ren, including four main cutting edges and correspondingly
Four left-turn spiral grooves for extending to both sides transition part；Counter boring portion includes three main cutting edges and three extend to handle of a knife
Right hand helix groove.
2. change helicla flute double tapered angle laminated construction drilling integrated tool according to claim 1, it is characterized in that：The mistake
The length for crossing portion is 4mm~6mm.
3. change helicla flute double tapered angle laminated construction drilling integrated tool according to claim 1, it is characterized in that：The brill
The unbearable diameter for cutting double tapered angle apex point in portion is not less than 0.25 times of drilling portion diameter.
4. change helicla flute double tapered angle laminated construction drilling integrated tool according to claim 1, it is characterized in that：The brill
The first cone angle for cutting double tapered angle apex point in portion is 120 °~132 °, corresponding first paragraph main cutting edge；Second segment cone angle is 90 ° of correspondences
Second segment main cutting edge.
5. change helicla flute double tapered angle laminated construction drilling integrated tool according to claim 1, it is characterized in that：The brill
The outer most edge anterior angle for cutting two main cutting edges of double tapered angle apex point in portion is 8 °~12 °, and relief angle is 11 °~15 °.
6. change helicla flute double tapered angle laminated construction drilling integrated tool according to claim 1, it is characterized in that：The brill
The helical angle for cutting right hand helix groove in portion is 23 °~30 °.
7. change helicla flute double tapered angle laminated construction drilling integrated tool according to claim 1, it is characterized in that：The hinge
The length for cutting portion is equal to all blade portion length of helicla flute in drilling portion.
8. change helicla flute double tapered angle laminated construction drilling integrated tool according to claim 1, it is characterized in that：The hinge
Spiral week sword outer rim anterior angle γ 1 for cutting portion is 5 °~10 °, and relief angle α 1 is 6 °~10 °.
9. change helicla flute double tapered angle laminated construction drilling integrated tool according to claim 1, it is characterized in that：The hinge
The helical angle for cutting left-turn spiral groove in portion is left-handed 7 °~12 °.
10. change helicla flute double tapered angle laminated construction drilling integrated tool according to claim 1, it is characterized in that：It is described
The helical angle of the right hand helix groove in counter boring portion is 30 °~35 °, and the outer rim anterior angle γ 2 in counter boring portion is 5 °~12 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720341716.7U CN206702276U (en) | 2017-04-01 | 2017-04-01 | One kind becomes helicla flute double tapered angle laminated construction drilling integrated tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720341716.7U CN206702276U (en) | 2017-04-01 | 2017-04-01 | One kind becomes helicla flute double tapered angle laminated construction drilling integrated tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206702276U true CN206702276U (en) | 2017-12-05 |
Family
ID=60467915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720341716.7U Expired - Fee Related CN206702276U (en) | 2017-04-01 | 2017-04-01 | One kind becomes helicla flute double tapered angle laminated construction drilling integrated tool |
Country Status (1)
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|---|---|
| CN (1) | CN206702276U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106825699A (en) * | 2017-04-01 | 2017-06-13 | 山东大学 | One kind becomes helicla flute double tapered angle laminated construction drilling integrated tool |
| CN108247115A (en) * | 2018-02-09 | 2018-07-06 | 广西汽车集团有限公司 | A kind of combined knife tool |
| CN108608040A (en) * | 2018-05-10 | 2018-10-02 | 大连理工大学 | For composite material and its micro- serrated knife tool of the double ladders of the perpendicular sword of laminated construction high quality drilling |
| CN110405258A (en) * | 2019-06-28 | 2019-11-05 | 株洲钻石切削刀具股份有限公司 | A kind of taper drilling reamer |
| CN111036938A (en) * | 2019-12-31 | 2020-04-21 | 铣立(上海)切削技术有限公司 | Chip breaking processing method for long-chip material |
| US11278970B2 (en) | 2018-10-09 | 2022-03-22 | Milwaukee Electric Tool Corporation | Drill bit |
| US11407039B2 (en) | 2018-01-29 | 2022-08-09 | Milwaukee Electric Tool Corporation | Drill bit |
-
2017
- 2017-04-01 CN CN201720341716.7U patent/CN206702276U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106825699A (en) * | 2017-04-01 | 2017-06-13 | 山东大学 | One kind becomes helicla flute double tapered angle laminated construction drilling integrated tool |
| US11407039B2 (en) | 2018-01-29 | 2022-08-09 | Milwaukee Electric Tool Corporation | Drill bit |
| CN108247115A (en) * | 2018-02-09 | 2018-07-06 | 广西汽车集团有限公司 | A kind of combined knife tool |
| CN108608040A (en) * | 2018-05-10 | 2018-10-02 | 大连理工大学 | For composite material and its micro- serrated knife tool of the double ladders of the perpendicular sword of laminated construction high quality drilling |
| CN108608040B (en) * | 2018-05-10 | 2020-04-07 | 大连理工大学 | Vertical-edge double-step micro-tooth cutter for high-quality hole making of composite material and laminated structure of composite material |
| US11278970B2 (en) | 2018-10-09 | 2022-03-22 | Milwaukee Electric Tool Corporation | Drill bit |
| CN110405258A (en) * | 2019-06-28 | 2019-11-05 | 株洲钻石切削刀具股份有限公司 | A kind of taper drilling reamer |
| CN111036938A (en) * | 2019-12-31 | 2020-04-21 | 铣立(上海)切削技术有限公司 | Chip breaking processing method for long-chip material |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171205 Termination date: 20190401 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |