CN106891281A - It is applied to the self adaptation blade tip process area fixture of aeroengine fan blades processing - Google Patents
It is applied to the self adaptation blade tip process area fixture of aeroengine fan blades processing Download PDFInfo
- Publication number
- CN106891281A CN106891281A CN201710036443.XA CN201710036443A CN106891281A CN 106891281 A CN106891281 A CN 106891281A CN 201710036443 A CN201710036443 A CN 201710036443A CN 106891281 A CN106891281 A CN 106891281A
- Authority
- CN
- China
- Prior art keywords
- push rod
- chuck
- sphere
- fixture
- rolling element
- 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.)
- Granted
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D19/00—Casting in, on, or around objects which form part of the product
- B22D19/04—Casting in, on, or around objects which form part of the product for joining parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
Abstract
The invention discloses a kind of self adaptation blade tip process area fixture for being applied to aeroengine fan blades processing, the technical problem for solving existing fixture poor practicability.Technical scheme is to include chuck, rolling element, brake pad, screw, push rod, bearing, push rod, shell, hex nut and binding nut.Chuck front end is designed using elasticity, and afterbody is ball design, can freely be rotated in rolling element, rolling element can be rotated in shell, making the mobile range of chuck further increases, it is ensured that chuck can be well adapted for the position of blade tip process area, realizes the self adaptation clamping of fixture；Vertically moving by push rod in quick clamping mechanism, drives push rod to move horizontally within the bearing, so as to quickly hold out against brake pad and chuck.Push rod is fixed by hex nut and binding nut, prevents from loosening.The position that the fixture can adjust chuck comes the position of self adaptation blade tip and is positioned and clamped, and does not introduce the metal of pollution titanium alloy, and practicality is good.
Description
Technical field
The present invention relates to a kind of fixture, more particularly to a kind of self adaptation for being applied to aeroengine fan blades processing
Blade tip process area fixture.
Background technology
Fan blade is one of core component of aero-engine, and its curve form and the accuracy of manufacture directly affects winged
The size of the propulsive efficiency of machine engine.Blade of aviation engine process characteristic is：Blade be thin-wall construction, with complex free
Curved surface, structure have it is curved, turn round, sweep the features such as, and required precision is high, and these features are proposed to the clamping before blade processing
At a relatively high requirement.
In processing, it is necessary to ensure that blade is in correct position and clamps by fixture, and prevent in process
Position is caused to change and workpiece deformation because cutting force, vibration cause fixture to loosen.Blade processing fixture of the prior art
Type has a lot, generally there is universal fixturing, adjustable fixture, built-up jig etc., is typically all fixed using tenon root one end, blade tip one
The structure for holding top formula to clamp, the structure easily causes the pinching deformation of blade when thin-wall construction blade is processed, and have impact on
The machining accuracy and total quality of blade.
Reference picture 5, document " Authorization Notice No. is the Chinese utility model patent of CN205085380U " discloses one kind and pours
Note fixture, the fixture includes base 1, support bar 2, positioning sliding block 3, lock-screw 4, metal sleeve 7, top top 5, bottom top
Point 9 and adjustable vane 6.Support bar 2 is provided with base 1, positioning sliding block 3 can be slided up and down along support bar 2；By blade
6 are arranged on lower tip 9, and sliding positioning sliding block 3 makes blade tip be arranged on top top 5, will be positioned using lock-screw 4 and slided
Block 3 is locked；Together with metal sleeve 7 and blade 6 are poured into a mould with low-melting alloy.Set fluted on the top of base 1
10, support swivel nut 8 is provided with groove 10.
The technical problem of fixture presence is disclosed in document：After blade root positioning, if blade tip deviates, top is top to push up with bottom
Where sharp during straight line, top is top cannot to be adjusted, and positioning can produce subsidiary stress by force；And low-temperature alloy cast can introduce other
Metal, pollutes titanium alloy blade.
The content of the invention
In order to overcome the shortcomings of existing fixture poor practicability, the present invention provides one kind and is applied to aeroengine fan blades
The self adaptation blade tip process area fixture of processing.The fixture include chuck, rolling element, brake pad, screw, push rod, bearing, push rod,
Shell, hex nut and binding nut.Chuck front end is designed using elasticity, and afterbody is ball design, can be in rolling element freely
Rotate, rolling element can be rotated in shell again, two rotate secondary cooperation, and making the mobile range of chuck further increases, it is ensured that
Chuck can be well adapted for the position of blade tip process area, realize the self adaptation clamping of fixture；By pushing away in quick clamping mechanism
Vertically moving for bar, drives push rod to move horizontally within the bearing, so as to quickly hold out against brake pad and chuck.By hex nut and
Binding nut fixes push rod, prevents from loosening.The position that the fixture can adjust chuck is come the position of self adaptation blade tip and is positioned
With clamping, realize that blade tip is clamped without subsidiary stress, and do not introduce the metal of pollution titanium alloy, practicality is good.
The technical solution adopted for the present invention to solve the technical problems is：One kind is applied to aeroengine fan blades and adds
The self adaptation blade tip process area fixture of work, be characterized in including chuck 1, rolling element 2, brake pad 3, screw 4, push rod 5, shell 6,
Bearing 7, push rod 8, hex nut 9 and binding nut 10.The front end of the chuck 1 is provided with bolt hole, and weakens elasticity using rigidity
Design, rear portion is spheroid.The center line of bolt hole is vertical with clamp central face, and the centre of sphere of afterbody sphere is located at clamp central face
On.The outside of the rolling element 2 is spheroid, and interior forward end is sphere, the mating spherical surfaces of the sphere and the rear portion spheroid of chuck 1, rolling
The Internal back end of kinetoplast 2 is the face of cylinder.The front end of the brake pad 3 is sphere, and the sphere is matched somebody with somebody with the sphere of the rear portion spheroid of chuck 1
Close；The back end cylindrical of brake pad 3 has screwed hole, and the screwed hole coordinates fixed mandril 5 with screw 4.It is ball that the push rod 5 is anterior
Face, the contact area for increasing push rod 5 and brake pad 3；Middle part is provided with annular male structure and coordinates with screw 4；Afterbody is two-phase
The lozenges of friendship, the lozenges fits to form self-locking with the close structure of push rod 8.The top of the push rod 8 is the face of cylinder, and middle part is
Lozenges, bottom is provided with screw thread, and whole clamping device is locked using hex nut 9 and binding nut 10.Behind the outside of the shell 6
It is 7 that end uses taper:24 taper surface, the interior forward end sphere of shell 6 is brought into close contact with rolling element 2；The inside stage casing of shell 6 is circle
Cylinder and the interference fits of bearing 7.
The beneficial effects of the invention are as follows：The fixture include chuck, rolling element, brake pad, screw, push rod, bearing, push rod,
Shell, hex nut and binding nut.Chuck front end is designed using elasticity, and afterbody is ball design, can be in rolling element freely
Rotate, rolling element can be rotated in shell again, two rotate secondary cooperation, and making the mobile range of chuck further increases, it is ensured that
Chuck can be well adapted for the position of blade tip process area, realize the self adaptation clamping of fixture；By pushing away in quick clamping mechanism
Vertically moving for bar, drives push rod to move horizontally within the bearing, so as to quickly hold out against brake pad and chuck.By hex nut and
Binding nut fixes push rod, prevents from loosening.The position that the fixture can adjust chuck is come the position of self adaptation blade tip and is positioned
With clamping, realize that blade tip is clamped without subsidiary stress, and do not introduce the metal of pollution titanium alloy, practicality is good.
The present invention is elaborated with reference to the accompanying drawings and detailed description.
Brief description of the drawings
Fig. 1 is the section view of the self adaptation blade tip process area fixture that the present invention is applied to aeroengine fan blades processing
Figure.
Fig. 2 is three regarding for the self adaptation blade tip process area fixture that the present invention is applied to aeroengine fan blades processing
Figure.
Fig. 3 is the partial enlarged drawing of Fig. 1.
Fig. 4 is that the self adaptation blade tip process area fixture for being applied to aeroengine fan blades processing of the invention removes shell
Structural representation afterwards.
In figure, 1- chucks, 2- rolling elements, 3- brake pads, 4- screws, 5- push rods, 6- shells, 7- bearings, 8- push rods, 9- six
Angle nut, 10- binding nuts.
Fig. 5 is a kind of structural representation for pouring into a mould fixture of background technology.
In figure, 1- bases, 2- support bars, 3- positioning sliding blocks, 4- lock-screws, 5- tops are top, 6- adjustable vanes, 7- gold
Category sleeve, 8- support swivel nuts, 9- lower tips, 10- grooves.
Specific embodiment
Following examples reference picture 1~4.
The self adaptation blade tip process area fixture that the present invention is applied to aeroengine fan blades processing includes chuck 1, rolling
Kinetoplast 2, brake pad 3, screw 4, push rod 5, shell 6, bearing 7, push rod 8, hex nut 9 and binding nut 10.
The described front end of chuck 1 is provided with bolt hole, and weakens elasticity design using rigidity, and rear portion is ball design.Bolt
The center line in hole is vertical with clamp central face, and the centre of sphere of afterbody sphere is located on clamp central face.
The outside of described rolling element 2 is ball design, and interior forward end is spherical design, and rear portion mating spherical surfaces of chuck 1, interior
Portion rear end is to design on the face of cylinder.
The described front end of brake pad 3 is spherical design, with the rear portion mating spherical surfaces of chuck 1；Back end cylindrical has screwed hole, with spiral shell
Nail 4 coordinates fixed mandril 5.
It is the spherical design of major diameter that described push rod 5 is anterior, increases the contact area with brake pad 3；Middle part is provided with
Annular male structure and screw fit；Afterbody is that two intersecting lozenges fit to form self-locking with the close structure of push rod 8.
Described bearing 7, hex nut 9, binding nut 10 uses national standard part.
The described top of push rod 8 is the face of cylinder, and middle part is lozenges, and bottom is provided with screw thread, using hex nut 9 and fastening
Nut 10 locks whole clamping device.
It is 7 that described housing exterior rear end uses taper:24 taper surface, enclosure front end sphere is tight with rolling element 2
Closely connected conjunction；Enclosure stage casing is the face of cylinder and bearing interference fits.
During assembling, rolling element 2 is first loaded into shell 6, then chuck 1 is loaded into rolling element 2；Push rod 5 is loaded into brake pad 3
In, screw 4 is screwed in brake pad afterbody, and adjusting screw 4 makes push rod 5 not come off from brake pad 3；The brake pad that will be assembled
3 and push rod 5 load rolling element 2 in, make the mating spherical surfaces at the rear portion of chuck 1 and the front portion of brake pad 3；Bearing 7 is loaded in shell 1 again
At preformed hole shoulder, bearing 7 is that gap coordinates and shell 1 is interference fits with push rod 5.Finally, push rod 8 is reserved along shell 1
Circular hole is advanced, and the afterbody lozenges of push rod 5 is contacted with the lozenges of push rod 8, screws in hex nut 9 and binding nut 10.
When using, by as previously described fixture is assembled, chuck is adjusted, blade tip process area is bolted loaded on folder
On head, hex nut is tightened, screw in binding nut and be allowed to be contacted with hex nut supporting surface, rotated binding nut with spanner
90 °.
Claims (1)
- It is 1. a kind of to be applied to the self adaptation blade tip process area fixture that aeroengine fan blades are processed, it is characterised in that：Including Chuck (1), rolling element (2), brake pad (3), screw (4), push rod (5), shell (6), bearing (7), push rod (8), hex nut And binding nut (10) (9)；Chuck (1) front end is provided with bolt hole, and weakens elasticity design using rigidity, and rear portion is ball Body；The center line of bolt hole is vertical with clamp central face, and the centre of sphere of afterbody sphere is located on clamp central face；The rolling element (2) outside is spheroid, and interior forward end is sphere, the mating spherical surfaces of the sphere and chuck (1) rear portion spheroid, in rolling element (2) Portion rear end is the face of cylinder；Brake pad (3) front end is the mating spherical surfaces of sphere, the sphere and chuck (1) rear portion spheroid；Rub Cleaning block (3) back end cylindrical has screwed hole, and the screwed hole coordinates fixed mandril (5) with screw (4)；Push rod (5) front portion is Sphere, the contact area for increasing push rod (5) and brake pad (3)；Middle part is provided with annular male structure and coordinates with screw (4)；Tail Portion is two intersecting lozenges, and the lozenges fits to form self-locking with push rod (8) close structure；Push rod (8) top is The face of cylinder, middle part is lozenges, and bottom is provided with screw thread, is filled using hex nut (9) and whole clamping of binding nut (10) locking Put；It is 7 that shell (6) outer-rear end uses taper:24 taper surface, shell (6) interior forward end sphere is tight with rolling element (2) Closely connected conjunction；The internal stage casing of shell (6) is the face of cylinder and bearing (7) interference fits.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710036443.XA CN106891281B (en) | 2017-01-18 | 2017-01-18 | Adaptive blade tip process area fixture applied to aeroengine fan blades processing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710036443.XA CN106891281B (en) | 2017-01-18 | 2017-01-18 | Adaptive blade tip process area fixture applied to aeroengine fan blades processing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106891281A true CN106891281A (en) | 2017-06-27 |
| CN106891281B CN106891281B (en) | 2018-09-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710036443.XA Active CN106891281B (en) | 2017-01-18 | 2017-01-18 | Adaptive blade tip process area fixture applied to aeroengine fan blades processing |
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| Country | Link |
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| CN (1) | CN106891281B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111546092A (en) * | 2020-05-15 | 2020-08-18 | 沈阳飞机工业（集团）有限公司 | Stress-free supporting device |
| CN112676884A (en) * | 2020-12-01 | 2021-04-20 | 西北工业大学 | Self-adaptive clamp suitable for complex curved surface machining and use method thereof |
| CN114434190A (en) * | 2022-02-25 | 2022-05-06 | 上海电气鼓风机厂有限公司 | Carbon fiber blade positioner for lathe work |
| CN114619074A (en) * | 2022-05-16 | 2022-06-14 | 成都飞机工业（集团）有限责任公司 | Device and method for quickly clamping and drilling thin-wall curved surface part |
| CN114749954A (en) * | 2022-04-13 | 2022-07-15 | 西安三航动力科技有限公司 | Self-adaptive clamping device for craft platform of aviation blade tip |
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| CN2868539Y (en) * | 2006-01-16 | 2007-02-14 | 杨华金 | Slope head |
| CN102029537A (en) * | 2010-11-11 | 2011-04-27 | 西北工业大学 | Precise positioning fixture for numerical control machining of thin-wall blade |
| EP2351631A1 (en) * | 2010-01-27 | 2011-08-03 | Rolls-Royce PLC | Apparatus for generating vibrations in a component |
| CN103846706A (en) * | 2014-03-20 | 2014-06-11 | 西北工业大学 | Special tension clamp for milling of blade type parts |
| JP2014205229A (en) * | 2013-04-16 | 2014-10-30 | 日本特殊陶業株式会社 | Holder for boring bar |
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2017
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2868539Y (en) * | 2006-01-16 | 2007-02-14 | 杨华金 | Slope head |
| EP2351631A1 (en) * | 2010-01-27 | 2011-08-03 | Rolls-Royce PLC | Apparatus for generating vibrations in a component |
| CN102029537A (en) * | 2010-11-11 | 2011-04-27 | 西北工业大学 | Precise positioning fixture for numerical control machining of thin-wall blade |
| JP2014205229A (en) * | 2013-04-16 | 2014-10-30 | 日本特殊陶業株式会社 | Holder for boring bar |
| CN103846706A (en) * | 2014-03-20 | 2014-06-11 | 西北工业大学 | Special tension clamp for milling of blade type parts |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111546092A (en) * | 2020-05-15 | 2020-08-18 | 沈阳飞机工业（集团）有限公司 | Stress-free supporting device |
| CN112676884A (en) * | 2020-12-01 | 2021-04-20 | 西北工业大学 | Self-adaptive clamp suitable for complex curved surface machining and use method thereof |
| CN114434190A (en) * | 2022-02-25 | 2022-05-06 | 上海电气鼓风机厂有限公司 | Carbon fiber blade positioner for lathe work |
| CN114434190B (en) * | 2022-02-25 | 2022-12-20 | 上海电气鼓风机厂有限公司 | Carbon fiber blade positioner for lathe work |
| CN114749954A (en) * | 2022-04-13 | 2022-07-15 | 西安三航动力科技有限公司 | Self-adaptive clamping device for craft platform of aviation blade tip |
| CN114619074A (en) * | 2022-05-16 | 2022-06-14 | 成都飞机工业（集团）有限责任公司 | Device and method for quickly clamping and drilling thin-wall curved surface part |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106891281B (en) | 2018-09-04 |
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