CN106825699A - 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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- CN106825699A CN106825699A CN201710216075.7A CN201710216075A CN106825699A CN 106825699 A CN106825699 A CN 106825699A CN 201710216075 A CN201710216075 A CN 201710216075A CN 106825699 A CN106825699 A CN 106825699A
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- Prior art keywords
- drilling
- helicla flute
- ream
- double tapered
- angle
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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
- B23B51/08—Drills combined with tool parts or tools for performing additional working
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P23/00—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass
- B23P23/02—Machine tools for performing different machining operations
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- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Drilling Tools (AREA)
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 be bored, the structure assembly of hinge, ream is on a cutter, it is disposable to complete laminated material drilling and drill and ream ream processing, ensure that the precision and axiality of drilling, avoid and twine knife phenomenon, prevent damage of the chip to machined surface, being capable of effectively chip breaking, promotion chip removal, it is ensured that tool life, drilling quality and processing efficiency.
Description
Technical field
The present invention relates to a kind of brill, hinge, ream integration knife suitable for laminated construction difficult-to-machine material precision system hole machined
Tool, can ensure drilling during different physical and mechanical property materials such as aluminium alloy, the drilling of titanium alloy lamination assembling structure
Precision, realizes effective chip breaking and chip removal, belongs to machining tool technical field.
Background technology
In order to reduce energy resource consumption, increase Aircraft life, the proportion that aluminium alloy is used 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.Accordingly, it would be desirable 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 using traditional multiple operation technique, cut with scissors, ream processing is difficult to ensure hole
Axiality, aided process is more, reduces operating efficiency；If bored, cut with scissors, ream integration drilling is brought chip breaking difficulty, row again
Bits are not easily caused the problem that cutter easily breaks freely, increase manufacturing cost.
Therefore, in brill, hinge, ream integrated tool design process, how to realize effective chip breaking, it is to avoid chip twines knife, protect
Card chip is smoothly discharged, the emphasis as research laminated construction drilling cutter.
The content of the invention
It is an object of the present invention to be directed to problem present in existing minor diameter integrated tool technology, a kind of change is proposed
Helicla flute double tapered angle laminated construction drilling integrated tool, can lead to the disposable completion brill of laminated construction, hinge, ream finishing
Cross effective chip breaking, light chip removal, reduce drilling axial force to improve hole dimensional accuracy, coaxial accuracy and surface quality,
While ensureing cutting speed, cutter life can be extended, improve processing efficiency.The present invention is applied to thickness, and smaller (individual layer is small
In 3mm) thin plate lamination assembling structure hole machined.
Change helicla flute double tapered angle laminated construction drilling integrated tool of the invention, 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 is 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, correspondence first paragraph main cutting edge；Second
Section cone angle is 90 ° of correspondence 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 rigidity, intensity and the chip removal of Zhou Ren
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 is ensured that the precision in cutter sharpness, durability and 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 conducive to ream chip to be added
Work surface direction is discharged, it is to avoid ream chip influences 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 present invention is by that will bore, hinge, the structure of ream are integrated on a cutter successively, realizes that laminated material drilling is disposable
Complete brill, hinge, ream processing, it is ensured that the precision and axiality of drilling；The bipyramid corner structure in drilling portion being capable of effectively chip breaking, it is to avoid
Twine the generation of 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 is to having added
The damage on work surface, improves crudy；Transition part increased the rigidity of cutter, and support guide is played a part of to counter boring,
Ensure that preferable counter boring quality and cutter life.
It is demonstrated experimentally that under the cooperation of appropriate process parameter, the present invention is drilled with smaller drilling axial force than common fried dough twist
With more preferable durability.Minor diameter suitable for the laminated construction of the difficult-to-machine materials such as aluminium alloy, high temperature alloy, titanium alloy is (small
In 6mm) drilling processing, can effectively chip breaking, promote chip removal, it is ensured that preferably tool life, drilling quality and processing
Efficiency.
Brief description of the drawings
Fig. 1 is the overall structure diagram that the present invention 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 present invention.
Fig. 3 is the radial section schematic diagram in ream portion in the present invention.
Fig. 4 is the generalized section of the ream sword in ream portion in the present invention.
Fig. 5 is the radial section schematic diagram in counter boring portion of the present invention.
In figure：1. drilling portion, 2. First Transition portion, 3. ream portion, 4. the second transition part, 5. counter boring portion, 6. handle of a knife.
Specific embodiment
Change helicla flute double tapered angle laminated construction drilling integrated tool of the invention, material is hard alloy, and its structure is such as
Shown in Fig. 1, including drilling portion 1, First Transition portion 2, ream portion 3, the second transition part 4, counter boring portion 5 and the handle of a knife 6 being sequentially connected.
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.First
The length L5 of the length L3 of transition part 2 and the second transition part 4 is 4mm~6mm, and this both ensure that the rigidity of cutter, also be cutter
Withdrawing surplus has been stopped in manufacture.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, infiltrates 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 selection bipyramid corner structure is double
Cone angle apex point includes two the main cutting edge T1 and T2 of equal length, and two main cutting edges are symmetrical with respect to center line, referring to Fig. 2, this
Ensure that good chip breaking effect；First cone angleCorrespondence first paragraph main cutting edge T1,It it is 120 °~132 °, optimal value is
120°.Second segment cone angleCorrespondence second segment main cutting edge T2,It is 90 °.Two the anterior angle of main cutting edge outer most edge is 8 °
~12 °, relief angle is 11 °~15 °.The corresponding helical angle ω 1 of helicla flute in drilling portion 1 is 23 °~30 ° of dextrorotation, to ensure Zhou Ren
Rigidity, intensity and chip removal performance；To that should have flute, Zhou Ren and land in helicla flute, helicla flute total length is apex point length L1
With all blade portion length L2 sums, wherein L2 is equal with the thickness of processed laminated construction.
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
It it is 5 °~10 °, relief angle α 1 is 6 °~10 °, referring to Fig. 3, so that ream is more steady, it is ensured that cutter sharpness, durable
Degree and the precision in hole.As shown in figure 4, in the one end near 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, to that should have on helicla flute
Flute, Zhou Ren and land.The cone angle in counter boring portion 5 is, the angle-determining of the cone angle in the counter boring portion according to engine request.Spiral
The corresponding helical angle ω 3 of 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, to the disposable completion brill of laminated construction, hinge, ream finishing, by effective chip breaking, promotes chip removal, reduction drilling
Axial force improves hole dimensional accuracy, coaxial accuracy and surface quality, while processing efficiency is ensured, with good
Durability.
Claims (10)
1. it is a kind of to become 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 two main cutting edges of equal length, and helicla flute extends to drilling portion for two
The right hand helix groove of transition part between ream portion；Ream portion has four spiral Zhou Ren, including four main cutting edges and correspondence
Four left-turn spiral grooves for extending to both sides transition part；Counter boring portion extends to handle of a knife including three main cutting edges and three
Right hand helix groove.
2. it is according to claim 1 to become helicla flute double tapered angle laminated construction drilling integrated tool, it is characterized in that：The mistake
The length for crossing portion is 4mm~6mm.
3. it is according to claim 1 to become helicla flute double tapered angle laminated construction drilling integrated tool, it is characterized in that：The brill
Cut 0.25 times of unbearable diameter not less than drilling portion diameter of double tapered angle apex point in portion.
4. it is according to claim 1 to become helicla flute double tapered angle laminated construction drilling integrated tool, it is characterized in that：The brill
The first cone angle of double tapered angle apex point in portion is cut for 120 °~132 °, correspondence first paragraph main cutting edge；Second segment cone angle is 90 ° of correspondences
Second segment main cutting edge.
5. it is according to claim 1 to become helicla flute double tapered angle laminated construction drilling integrated tool, it is characterized in that：The brill
It is 8 °~12 ° to cut two outer most edge anterior angles of main cutting edge of double tapered angle apex point in portion, and relief angle is 11 °~15 °.
6. it is according to claim 1 to become helicla flute double tapered angle laminated construction drilling integrated tool, it is characterized in that：The brill
The helical angle for cutting right hand helix groove in portion is 23 °~30 °.
7. it is according to claim 1 to become helicla flute double tapered angle laminated construction drilling integrated tool, 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. it is according to claim 1 to become helicla flute double tapered angle laminated construction drilling integrated tool, 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. it is according to claim 1 to become helicla flute double tapered angle laminated construction drilling integrated tool, it is characterized in that：The hinge
The helical angle for cutting left-turn spiral groove in portion is left-handed 7 °~12 °.
10. it is according to claim 1 to become helicla flute double tapered angle laminated construction drilling integrated tool, 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 |
|---|---|---|---|
| CN201710216075.7A CN106825699A (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 |
|---|---|---|---|
| CN201710216075.7A CN106825699A (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 |
|---|---|
| CN106825699A true CN106825699A (en) | 2017-06-13 |
Family
ID=59142884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710216075.7A Pending CN106825699A (en) | 2017-04-01 | 2017-04-01 | One kind becomes helicla flute double tapered angle laminated construction drilling integrated tool |
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| CN (1) | CN106825699A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110281400A (en) * | 2019-08-06 | 2019-09-27 | 宁波禹捷工具有限公司 | A kind of multiple-cutting-edge grooved bit |
| JP2019217616A (en) * | 2018-06-22 | 2019-12-26 | 京セラ株式会社 | Rotary tool and method for manufacturing work-piece to be cut |
| CN110919058A (en) * | 2019-12-23 | 2020-03-27 | 常州利德切削技术有限公司 | Efficient three-blade broaching tool capable of performing intermittent machining |
| CN111185964A (en) * | 2018-11-15 | 2020-05-22 | 肯纳金属公司 | Orbital drill bit with left-hand and right-hand flutes |
| CN113967755A (en) * | 2020-07-22 | 2022-01-25 | 上海飞机制造有限公司 | Hole making method of spiral dimple-milling hole |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4507028A (en) * | 1981-09-26 | 1985-03-26 | Densaburo Sakai | Combined drill and reamer |
| US20050135887A1 (en) * | 2003-12-17 | 2005-06-23 | Borschert Bernhard W. | Twist drill |
| CN105642972A (en) * | 2016-04-12 | 2016-06-08 | 山东大学 | Drilling-reaming-dimpling integrated cutting tool |
| CN106216743A (en) * | 2016-09-26 | 2016-12-14 | 山东大学 | A kind of double tapered angle chip-breaking drill bit |
| CN206702276U (en) * | 2017-04-01 | 2017-12-05 | 山东大学 | One kind becomes helicla flute double tapered angle laminated construction drilling integrated tool |
-
2017
- 2017-04-01 CN CN201710216075.7A patent/CN106825699A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4507028A (en) * | 1981-09-26 | 1985-03-26 | Densaburo Sakai | Combined drill and reamer |
| US20050135887A1 (en) * | 2003-12-17 | 2005-06-23 | Borschert Bernhard W. | Twist drill |
| CN105642972A (en) * | 2016-04-12 | 2016-06-08 | 山东大学 | Drilling-reaming-dimpling integrated cutting tool |
| CN106216743A (en) * | 2016-09-26 | 2016-12-14 | 山东大学 | A kind of double tapered angle chip-breaking drill bit |
| CN206702276U (en) * | 2017-04-01 | 2017-12-05 | 山东大学 | One kind becomes helicla flute double tapered angle laminated construction drilling integrated tool |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019217616A (en) * | 2018-06-22 | 2019-12-26 | 京セラ株式会社 | Rotary tool and method for manufacturing work-piece to be cut |
| JP7060462B2 (en) | 2018-06-22 | 2022-04-26 | 京セラ株式会社 | Manufacturing method for rotary tools and cuttings |
| CN111185964A (en) * | 2018-11-15 | 2020-05-22 | 肯纳金属公司 | Orbital drill bit with left-hand and right-hand flutes |
| CN110281400A (en) * | 2019-08-06 | 2019-09-27 | 宁波禹捷工具有限公司 | A kind of multiple-cutting-edge grooved bit |
| CN110919058A (en) * | 2019-12-23 | 2020-03-27 | 常州利德切削技术有限公司 | Efficient three-blade broaching tool capable of performing intermittent machining |
| CN113967755A (en) * | 2020-07-22 | 2022-01-25 | 上海飞机制造有限公司 | Hole making method of spiral dimple-milling hole |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170613 |