CN106891281B - Adaptive blade tip process area fixture applied to aeroengine fan blades processing - Google Patents
Adaptive blade tip process area fixture applied to aeroengine fan blades processing Download PDFInfo
- Publication number
- CN106891281B CN106891281B CN201710036443.XA CN201710036443A CN106891281B CN 106891281 B CN106891281 B CN 106891281B CN 201710036443 A CN201710036443 A CN 201710036443A CN 106891281 B CN106891281 B CN 106891281B
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- China
- Prior art keywords
- collet
- rolling element
- shell
- blade tip
- mandril
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Classifications
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- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a kind of adaptive blade tip process area fixtures applied to aeroengine fan blades processing, the technical issues of for solving existing fixture poor practicability.Technical solution be include collet, rolling element, brake pad, screw, mandril, bearing, push rod, shell, hex nut and binding nut.Collet front end is designed using elasticity, and tail portion is ball design, can be freely rotated in rolling element, rolling element can rotate inside the shell, so that the mobile range of collet is further increased, ensures that collet can be well adapted for the position of blade tip process area, realize the adaptive clamping of fixture；Vertically moving by push rod in quick clamping mechanism drives mandril to move horizontally within the bearing, to quickly hold out against brake pad and collet.Push rod is fixed by hex nut and binding nut, prevents from loosening.The position that the fixture can adjust the next adaptive blade tip in position of collet is positioned and is clamped, and does not introduce the metal of pollution titanium alloy, and practicability is good.
Description
Technical field
The present invention relates to a kind of fixtures, more particularly to a kind of applied to the adaptive of aeroengine fan blades processing
Blade tip process area fixture.
Background technology
Fan blade is one of core component of aero-engine, 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 is thin-wall construction, has complex free
Curved surface, structure has the characteristics that curved, torsion, sweep, and required precision is high, these features propose the clamping before blade processing
Quite high requirement.
In processing, need to ensure that blade is in correct position and clamps by fixture, and prevent in process
Since cutting force, vibration cause fixture loosening that position change and workpiece is caused to deform.Blade processing fixture in the prior art
Type has very much, usually has universal fixturing, adjustable fixture, built-up jig etc., is generally used tenon root one end and fixes, blade tip one
The structure for holding top formula to clamp, the structure easily cause the pinching deformation of blade when processing thin-wall construction blade, affect
The machining accuracy and total quality of blade.
With reference to Fig. 5, document " Authorization Notice No. is the Chinese utility model patent of CN205085380U " discloses one kind and pours
Fixture is noted, which includes pedestal 11, supporting rod 12, positioning sliding block 13, lock-screw 14, metal sleeve 17, top is top 15,
Lower tip 19 and adjustable vane 16.It is provided with supporting rod 12 on the pedestal 11, positioning sliding block 13 can be along on supporting rod 12
Lower slider；Blade 16 is mounted on lower tip 19, sliding positioning sliding block 13 makes blade tip be mounted on top top 15, uses
Positioning sliding block 13 is locked by lock-screw 14；Metal sleeve 17 and the low-melting alloy of blade 16 are poured into a mould together.
The top setting fluted 20 of pedestal 11, is provided with support swivel nut 18 in groove 20.
Fixture disclosed in document is：After blade root positioning, if blade tip deviates, top is top to push up with lower part
Where sharp when straight line, top is top to be adjusted, and positioning by force will produce subsidiary stress；And low-temperature alloy cast can introduce other
Metal pollutes titanium alloy blade.
Invention content
In order to overcome the shortcomings of that existing fixture poor practicability, the present invention provide a kind of applied to aeroengine fan blades
The adaptive blade tip process area fixture of processing.The fixture include collet, rolling element, brake pad, screw, mandril, bearing, push rod,
Shell, hex nut and binding nut.Collet front end is designed using elasticity, and tail portion is ball design, can be in rolling element freely
Rotation, rolling element can rotate inside the shell again, and two revolute pair cooperations make the mobile range of collet further increase, ensure
Collet can be well adapted for the position of blade tip process area, realize the adaptive clamping of fixture；By pushing away in quick clamping mechanism
Bar vertically moves, and mandril is driven to move horizontally within the bearing, to quickly hold out against brake pad and collet.By hex nut and
Binding nut fixes push rod, prevents from loosening.The position that the fixture can adjust the next adaptive blade tip in position of collet is positioned
With clamping, realize that blade tip is clamped without subsidiary stress, and do not introduce the metal of pollution titanium alloy, practicability is good.
The technical solution adopted by the present invention to solve the technical problems is：One kind adds applied to aeroengine fan blades
The adaptive blade tip process area fixture of work, its main feature is that including collet 1, rolling element 2, brake pad 3, screw 4, mandril 5, shell 6,
Bearing 7, push rod 8, hex nut 9 and binding nut 10.1 front end of the collet is equipped with bolt hole, and weakens elasticity using rigidity
Design, rear portion is sphere.The center line of bolt hole is vertical with clamp central face, and the centre of sphere of tail portion spherical surface is located at clamp central face
On.2 outside of the rolling element is sphere, and interior forward end is spherical surface, the mating spherical surfaces of the spherical surface and 1 rear portion sphere of collet, rolling
2 Internal back end of kinetoplast is cylindrical surface.3 front end of the brake pad is spherical surface, and the spherical surface of the spherical surface and 1 rear portion sphere of collet is matched
It closes；3 back end cylindrical of brake pad has threaded hole, the threaded hole to coordinate fixed mandril 5 with screw 4.5 front of the mandril is ball
Face, the contact area for increasing mandril 5 and brake pad 3；Middle part is equipped with annular male structure and coordinates with screw 4；Tail portion is two-phase
The lozenges of friendship, the lozenges are bonded to form self-locking with 8 close structure of push rod.8 top of the push rod is cylindrical surface, and middle part is
Lozenges, lower part are equipped with screw thread, entire clamping device are locked using hex nut 9 and binding nut 10.Behind 6 outside of the shell
End uses taper for 7:24 taper surface, 6 interior forward end spherical surface of shell are fitted closely with rolling element 2；6 inside stage casing of shell is circle
Cylinder coordinates with 7 transition of bearing.
The beneficial effects of the invention are as follows：The fixture include collet, rolling element, brake pad, screw, mandril, bearing, push rod,
Shell, hex nut and binding nut.Collet front end is designed using elasticity, and tail portion is ball design, can be in rolling element freely
Rotation, rolling element can rotate inside the shell again, and two revolute pair cooperations make the mobile range of collet further increase, ensure
Collet can be well adapted for the position of blade tip process area, realize the adaptive clamping of fixture；By pushing away in quick clamping mechanism
Bar vertically moves, and mandril is driven to move horizontally within the bearing, to quickly hold out against brake pad and collet.By hex nut and
Binding nut fixes push rod, prevents from loosening.The position that the fixture can adjust the next adaptive blade tip in position of collet is positioned
With clamping, realize that blade tip is clamped without subsidiary stress, and do not introduce the metal of pollution titanium alloy, practicability is good.
It elaborates with reference to the accompanying drawings and detailed description to the present invention.
Description of the drawings
Fig. 1 is the section view for the adaptive blade tip process area fixture that the present invention is applied to aeroengine fan blades processing
Figure.
Fig. 2 is three regarding for the adaptive blade tip process area fixture that the present invention is applied to aeroengine fan blades processing
Figure.
Fig. 3 is the partial enlarged view of Fig. 1.
Fig. 4 is that the present invention removes shell applied to the adaptive blade tip process area fixture of aeroengine fan blades processing
Structural schematic diagram afterwards.
In figure, 1- collets, 2- rolling elements, 3- brake pads, 4- screws, 5- mandrils, 6- shells, 7- bearings, 8- push rods, 9- six
Angle nut, 10- binding nuts.
Fig. 5 is a kind of structural schematic diagram of cast fixture of background technology.
In figure, 11- pedestals, 12- supporting rods, 13- positioning sliding blocks, 14- lock-screws, the tops 15- are top, 16- is adjustable leaf
Piece, 17- metal sleeves, 18- support swivel nut, 19- lower tips, 20- grooves.
Specific implementation mode
Following embodiment is referring to Fig.1~4.
The adaptive blade tip process area fixture that the present invention is applied to aeroengine fan blades processing includes collet 1, rolling
Kinetoplast 2, brake pad 3, screw 4, mandril 5, shell 6, bearing 7, push rod 8, hex nut 9 and binding nut 10.
1 front end of collet is equipped 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 tail portion spherical surface is located on clamp central face.
2 outside of rolling element is ball design, and interior forward end is spherical design, interior with 1 rear portion mating spherical surfaces of collet
Portion designs rear end for cylindrical surface.
3 front end of brake pad is spherical design, with 1 rear portion mating spherical surfaces of collet；Back end cylindrical has threaded hole, with spiral shell
4 cooperation fixed mandril 5 of nail.
5 front of mandril is the spherical design of major diameter, increases the contact area with brake pad 3；Middle part is equipped with
Annular male structure and screw fit；Tail portion is that the lozenges of two intersections is bonded to form self-locking with 8 close structure of push rod.
The bearing 7, hex nut 9, binding nut 10 are all made of national standard part.
8 top of push rod is cylindrical surface, and middle part is lozenges, and lower part is equipped with screw thread, using hex nut 9 and fastening
Nut 10 locks entire clamping device.
The shell exterior rear end uses taper for 7:24 taper surface, enclosure front end spherical surface are tight with rolling element 2
Closely connected conjunction；Enclosure stage casing is that cylindrical surface coordinates with bearing transition.
When assembly, rolling element 2 is first packed into shell 6, then collet 1 is packed into rolling element 2；Mandril 5 is packed into brake pad 3
In, screw 4 is screwed in brake pad tail portion, and adjusting screw 4 makes mandril 5 not fall off from brake pad 3；The brake pad that will be assembled
3 and mandril 5 be packed into rolling element 2 in, make the mating spherical surfaces at 1 rear portion of collet and 3 front of brake pad；Bearing 7 is packed into shell 1 again
At preformed hole shoulder, bearing 7 and mandril 5 are clearance fit, with shell 1 are transition cooperation.Finally, push rod 8 is reserved along shell 1
Circular hole promotes, and 5 tail portion lozenges of mandril is made to be contacted with 8 lozenges of push rod, screws in hex nut 9 and binding nut 10.
In use, by as previously described fixture is assembled, collet is adjusted, blade tip process area is bolted loaded on folder
On head, hex nut is tightened, binding nut is screwed in and is allowed to contact with hex nut supporting surface, rotated binding nut with spanner
90 °.
Claims (1)
1. a kind of adaptive blade tip process area fixture applied to aeroengine fan blades processing, it is characterised in that：Including
Collet (1), rolling element (2), brake pad (3), screw (4), mandril (5), shell (6), bearing (7), push rod (8), hex nut
(9) and binding nut (10)；Collet (1) front end is equipped 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 tail portion spherical surface is located on clamp central face；The rolling element
(2) external is sphere, and interior forward end is spherical surface, the mating spherical surfaces of the spherical surface and collet (1) rear portion sphere, in rolling element (2)
Portion rear end is cylindrical surface；Brake pad (3) front end is spherical surface, the mating spherical surfaces of the spherical surface and collet (1) rear portion sphere；It rubs
Cleaning block (3) back end cylindrical has threaded hole, the threaded hole and screw (4) cooperation fixed mandril (5)；Mandril (5) front is
Spherical surface, the contact area for increasing mandril (5) and brake pad (3)；Middle part is equipped with annular male structure and coordinates with screw (4)；Tail
Portion is the lozenges of two intersections, and the lozenges is bonded to form self-locking with push rod (8) close structure；Push rod (8) top is
Cylindrical surface, middle part are lozenges, and lower part is equipped with screw thread, are filled using hex nut (9) and entire clamp of binding nut (10) locking
It sets；Shell (6) outer-rear end uses taper for 7:24 taper surface, shell (6) interior forward end spherical surface are tight with rolling element (2)
Closely connected conjunction；The internal stage casing of shell (6) is that cylindrical surface coordinates with bearing (7) transition.
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 CN106891281A (en) | 2017-06-27 |
| CN106891281B true 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 |
Country Status (1)
| Country | Link |
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| CN (1) | CN106891281B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111546092B (en) * | 2020-05-15 | 2022-02-15 | 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 |
| 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 |
| CN114749954B (en) * | 2022-04-13 | 2023-04-18 | 西安三航动力科技有限公司 | Self-adaptive clamping device for aircraft blade tip process table |
| CN114619074B (en) * | 2022-05-16 | 2022-09-20 | 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 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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
- 2017-01-18 CN CN201710036443.XA patent/CN106891281B/en active Active
Patent Citations (4)
| 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 |
| CN103846706A (en) * | 2014-03-20 | 2014-06-11 | 西北工业大学 | Special tension clamp for milling of blade type parts |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106891281A (en) | 2017-06-27 |
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