CN207013763U - A kind of reamer for being used for machining titanium alloy and carbon fibre laminates - Google Patents
A kind of reamer for being used for machining titanium alloy and carbon fibre laminates Download PDFInfo
- Publication number
- CN207013763U CN207013763U CN201720469890.XU CN201720469890U CN207013763U CN 207013763 U CN207013763 U CN 207013763U CN 201720469890 U CN201720469890 U CN 201720469890U CN 207013763 U CN207013763 U CN 207013763U
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- CN
- China
- Prior art keywords
- reamer
- diameter
- shank
- angle
- back taper
- 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.)
- Expired - Fee Related
Links
- 238000003754 machining Methods 0.000 title claims abstract description 14
- 229910001069 Ti alloy Inorganic materials 0.000 title claims abstract description 13
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 10
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 10
- 239000000835 fiber Substances 0.000 title claims abstract description 10
- 238000005520 cutting process Methods 0.000 claims abstract description 31
- 239000000463 material Substances 0.000 claims abstract description 19
- 229910045601 alloy Inorganic materials 0.000 claims description 4
- 239000000956 alloy Substances 0.000 claims description 4
- JPNWDVUTVSTKMV-UHFFFAOYSA-N cobalt tungsten Chemical class [Co].[W] JPNWDVUTVSTKMV-UHFFFAOYSA-N 0.000 claims description 2
- 230000009286 beneficial effect Effects 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000003746 surface roughness Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 4
- 239000007787 solid Substances 0.000 description 3
- 229920000049 Carbon (fiber) Polymers 0.000 description 2
- 239000004917 carbon fiber Substances 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 230000001965 increasing effect Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 235000019589 hardness Nutrition 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Landscapes
- Milling, Broaching, Filing, Reaming, And Others (AREA)
- Drilling Tools (AREA)
Abstract
The utility model provides a kind of reamer for being used for machining titanium alloy and carbon fibre laminates, belongs to mechanical manufacturing field, including leader, cutting tip, back taper part, shank.The leader of reamer is located at reamer front end, using the positional precision for short preceding guide structure, ensureing hole；Cutting tip is located at after leader, stable beneficial to chip removal, radiating, cutting using three toothings, reduces vibration；Back taper part is located at after cutting tip, and the back draught of back taper part determines according to the friction of blade and finished surface and machined material property.Described shank uses Rhizoma Sparganii formula caudal peduncle, increases clamping force.Broad that is provided by the utility model while processing two kinds of materials, can complete machining, dimensional accuracy, surface roughness meets technical requirements, aircraft assembling aviation field is not only applicable to, other field of machining such as automobile can also be applied to, there is extensive social application value.
Description
Technical field
The utility model belongs to mechanical manufacturing field, there is provided a kind of reaming for machining titanium alloy and carbon fibre laminates
Bore, be superimposed together for two kinds of materials of titanium alloy during aircraft Product Assembly and carbon fiber and finish reaming.
Technical background
New material increases severely in aircraft products application amount, and particularly titanium alloy and carbon fiber increment is most rapid.Aircraft assembles
During, before the components of different materials assembles, the finishing in hole is first carried out, is then attached again, majority is key
Crossing point holes.When aircraft product component assembles, different materials will finish together, due to the cutting ability of two kinds of different materials
Difference, especially difficult-to-machine material, the geometric parameter of the cutting tool of processing, structural parameters etc. are all entirely different, are now to
Machining is completed simultaneously, it is extremely difficult.National standard, navigation mark, enterprise's mark are not processed the cutters of both materials simultaneously and set at present
Meter standard.
Utility model content
The problem of existing for prior art, the utility model provide a kind of for machining titanium alloy and carbon fibre laminates
Reamer, finished for titanium alloy in aircraft assembling process and the reaming of carbon fibre laminates material.
The technical solution of the utility model is as follows：
A kind of reamer for being used for machining titanium alloy and carbon fibre laminates, reamer material is tungsten-cobalt series hard alloy, bag
Include leader 1, cutting tip 2, back taper part 3, shank 4.
Described leader 1 is located at reamer front end, and leader can be overcome during assembling because hand-held air drill is swung greatly
Caused by not coaxial, elliptical aperture the problem of, ensure the positional precision in hole, and the leader can guarantee that during hole machined constantly
Guiding；I.e. reamer is used with short preceding guide structure, and preceding guide structure is leader 1, if between guiding and blade
Empty knife size length, when just having during processing the guiding not work, short guiding is to can guarantee that constantly to guide during hole machined.
Described cutting tip 2 uses three toothings, stable beneficial to chip removal, radiating, cutting, reduces vibration；Tooth form carries out reinforcement design,
Increase solid diameter, increase back of tooth thickness, increase groove angle angle to realize the structural strengthening of the back of tooth, improve the shock resistance of cutter
Ability, improve cutter life.Described back taper part 3 is located at after cutting tip 2, and the back draught of back taper part 3 is according to blade
Friction and machined material property with finished surface determine.Described shank 4 uses Rhizoma Sparganii formula caudal peduncle, increases clamping force.
The geometric parameter of described reamer is：
Described reamer diameter d is required：At away from hole tolerance limit 40%, tolerance range is the maximum gauge of reamer
The 35% of hole tolerance range, wear extent are the 25% of tolerance range.More than the preceding lead diameter d2=d- processing of described leader 1
Amount.Back taper diameter d1 is that reamer diameter d actual sizes subtract back draught.Described shank diameter d3 determines according to clamping air drill.
Described taper lead angle Kr is 15 ° ± 1 °；Cutting cone length L1, which is lengthened, reduces single-turn cutting output, reduces cutting resistance
Power, stable cutting；Helical angle ω=15 ° ± 1 ° of reamer right-hand screw, stable cutting, stock-removing efficiency are high；The anterior angle of reamer
γ=5 ° ± 1 °, be advantageous to chip breaking chip removal, improve the radiating condition of cutter and the intensity of enhancing blade；The groove angle θ of reamer
=80 °, ensure enough chip spaces；The width B of shank Rhizoma Sparganii is that shank diameter subtracts 0.5；The back angle α 1=12 ° of reamer
± 1 °, overcome because resilience and caused by rub, cutter suitably increases relief angle, and cutting temperature caused by reducing friction raises, and avoids
Viscous bits, reduce the cutting resistance caused by frictional force, while ensure that cutting tooth has enough cutting hardnesses.
The beneficial effects of the utility model are：The broad of both materials is processed while voluntarily development, can be complete
Into machining, dimensional accuracy, surface roughness meets technical requirements, is not only applicable to aircraft assembling aviation field, can also
Applied to other field of machining such as automobile, and with extensive social application value.
Brief description of the drawings
Fig. 1 is the front view of machining titanium alloy and the reamer of carbon fibre laminates structure；
Fig. 2 is A-A profiles in Fig. 1；
Fig. 3 is B-B profiles in Fig. 1；
Fig. 4 is C-C profiles in Fig. 1；
Fig. 5 is D-D profiles in Fig. 1；
In Fig. 1：The leader of 1 reamer, the cutting tip of 2 reamers, the back taper part of 3 reamers, 4 reamers
Shank；D is reamer diameter, and d1 is back taper diameter, and d2 is preceding lead diameter, and d3 is shank diameter；ω is the spiral of reamer
Angle, Kr are the taper lead angle of reamer, and L1 is cutting cone length；In Fig. 2：α 1 is the back angle of reamer；In Fig. 3：α 2 is
The back taper relief angle of reamer, α 3 are the back of tooth relief angle of reamer, and d4 is the solid diameter of reamer, and f is margin width, L2 the
The back of tooth width of one relief angle, L3 are the back of tooth width of the second relief angle；In Fig. 4：γ is the anterior angle of reamer, and θ is the tooth of reamer
Groove angle；In Fig. 5：B is the width of shank Rhizoma Sparganii.
Embodiment
It is most with application amount, one of most typical specification：It is a diameter ofReamer exemplified by.
One, structure divisions
1. the diameter calculating principle of reamer is to ensure that qualified aperture and cutter manufacture precision and cutter have certain mill
Damage amount ensures service life, and for the maximum gauge of cutter at away from hole tolerance limit 40%, tolerance range is the 35% of hole tolerance range, is ground
Damage amount is the 25% of tolerance range, and d is after calculating
2. the back draught of cutter is relevant with friction of the blade with finished surface and machined material property, scratch table is prevented
Face, according to the characteristics of titanium alloy and multiple material, back draught is 0.01 herein, therefore diameter d1 is diameter d actual sizes -0.01.
3. the effect of leader be ensure latter procedure tool sharpening with it is preceding together with tool sharpening in same position, directly
Footpath is the diameter d2=d- allowance of preceding processes drilling.Guiding uses short guide structure length of lead as 10；It is necessary herein
Short guiding is made, and the empty knife of processing can not be stayed, because the most of junction thickness of aircraft assembling is not thick, if being free knife, meeting
Guiding is set not work, the not thick guiding of part is also unnecessary oversize.
4. shank diameter is selected according to clamping air drill, d3 isShank length is 30.
5. the number of teeth is beneficial to chip removal, radiating, cutting stabilization using three toothings, vibration is reduced.
The geometric parameter part of two, reamers
1. reamer right-hand screw helical angle ω=15 ° ± 1 ° in Fig. 1.Length of cut L1=3；Taper lead angle selects Kr=
15°±1°；Ensure enough chipping allowances, stable cutting, stock-removing efficiency height.
2. back angle α 1=12 ° ± 1 ° of the reamer in Fig. 2.Overcome because resilience and caused by rub, cutter is appropriate
Relief angle is increased, cutting temperature raises caused by reducing friction, avoids viscous bits, reduces the cutting resistance caused by frictional force.
3. the first relief angle α 2=12 ° ± 1 ° of reamer back taper part in Fig. 3；Second relief angle α 3=30 ° of reamer.Protect
Demonstrate,prove the back of tooth width L2=1.5mm of the first relief angle, the back of tooth width L3=2.4mm of the second relief angle.The design of two relief angles both ensures to cut
Cut smooth and enhancing cutter tooth intensity.Margin width f=0.1mm, ensure the sharpness of cutting edge, and then ensure cutting surface matter
Amount.The solid diameter of reamer is that d4 isEnsure the bulk strength of cutter.
4. anterior angle γ=5 ° ± 1 ° of the reamer in Fig. 4, is advantageous to chip breaking chip removal, improve radiating condition and the increasing of cutter
The intensity of strong blade.Groove angle θ=80 ° of reamer, ensure enough chip spaces.
5. the width of shank Rhizoma Sparganii subtracts 0.5 according to shank diameter in Fig. 5, B=5.5；Rhizoma Sparganii handle designs increase folder
Hold contact surface and ensure that clamping is reliable.
Cutter material selects K30 hard alloy, and cutter is whole hard alloy structure.Remaining whole parameters and structure according to
Concrete condition is rationally designed.Applied in aircraft assembling by whole series of cutting tools of such a method design.
Claims (2)
- It is 1. a kind of for machining titanium alloy and the reamer of carbon fibre laminates, it is characterised in that described reamer material includes drawing Lead part (1), cutting tip (2), back taper part (3), shank (4)；Described leader (1) is located at reamer front end；Described cutting tip (2) uses three toothings；Described back taper Partly (3) are located at after cutting tip (2), and the back draught of back taper part (3) is according to the friction of blade and finished surface and is added Work material character determines；Described shank (4) uses Rhizoma Sparganii formula caudal peduncle；The geometric parameter of described reamer is：Described reamer diameter d is required：For the maximum gauge of reamer at away from hole tolerance limit 40%, tolerance range is that hole is public The 35% of difference band, wear extent are the 25% of tolerance range；The preceding lead diameter d2=d- allowance of described leader (1)； Back taper diameter d1 is that reamer diameter d actual sizes subtract back draught；Described shank diameter d3 determines according to clamping air drill；Described taper lead angle Kr is 15 ° ± 1 °；Helical angle ω=15 ° ± 1 ° of reamer right-hand screw；The anterior angle γ of reamer =5 ° ± 1 °；Groove angle θ=80 ° of reamer；The width B of shank Rhizoma Sparganii is that shank diameter subtracts 0.5；The back angle of reamer α 1=12 ° ± 1 °.
- It is 2. according to claim 1 a kind of for machining titanium alloy and the reamer of carbon fibre laminates, it is characterised in that institute The reamer material stated is tungsten-cobalt series hard alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720469890.XU CN207013763U (en) | 2017-04-27 | 2017-04-27 | A kind of reamer for being used for machining titanium alloy and carbon fibre laminates |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720469890.XU CN207013763U (en) | 2017-04-27 | 2017-04-27 | A kind of reamer for being used for machining titanium alloy and carbon fibre laminates |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207013763U true CN207013763U (en) | 2018-02-16 |
Family
ID=61459877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720469890.XU Expired - Fee Related CN207013763U (en) | 2017-04-27 | 2017-04-27 | A kind of reamer for being used for machining titanium alloy and carbon fibre laminates |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207013763U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106925819A (en) * | 2017-04-27 | 2017-07-07 | 沈阳飞机工业（集团）有限公司 | It is a kind of for machining titanium alloy and the reamer of carbon fibre laminates |
| CN114472985A (en) * | 2021-12-03 | 2022-05-13 | 中航沈飞民用飞机有限责任公司 | Large-size high-precision stepped reaming cutter with front and rear guide |
-
2017
- 2017-04-27 CN CN201720469890.XU patent/CN207013763U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106925819A (en) * | 2017-04-27 | 2017-07-07 | 沈阳飞机工业（集团）有限公司 | It is a kind of for machining titanium alloy and the reamer of carbon fibre laminates |
| CN114472985A (en) * | 2021-12-03 | 2022-05-13 | 中航沈飞民用飞机有限责任公司 | Large-size high-precision stepped reaming cutter with front and rear guide |
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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: 20180216 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |