CN104400521B - A kind of angular precision positioning centering and clamping mechanism - Google Patents
A kind of angular precision positioning centering and clamping mechanism Download PDFInfo
- Publication number
- CN104400521B CN104400521B CN201410632137.9A CN201410632137A CN104400521B CN 104400521 B CN104400521 B CN 104400521B CN 201410632137 A CN201410632137 A CN 201410632137A CN 104400521 B CN104400521 B CN 104400521B
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- CN
- China
- Prior art keywords
- chuck
- blade
- tapered sleeve
- cone
- taper shank
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- 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
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Classifications
-
- 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
- B23Q3/12—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for securing to a spindle in general
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
Abstract
A kind of angular precision positioning centering and clamping mechanism, belongs to technical field of aircraft engine part manufacture.The voussoir of the present invention is positioned at taper shank groove and is driven by fishbolt, and cone contacts cooperation with voussoir, and tapered sleeve is inner to be connected with cone dorsal part, and coat suit is in tapered sleeve outer end, and overcoat is connected with taper shank by pedestal；Chuck is connected with deck, and tapered sleeve coordinates with chuck, and chuck entirety uses and uses elastic caoutchouc to connect between multi-clove type structure, and two lobes；Chuck inner surface is provided with flexibly positioned piece, and flexibly positioned piece flat with blade side coordinates, and chuck inner surface diameter is ± 0.2mm with the dimensional fits scope of the big axle journal of blade.The flexibly positioned piece of compression flat realization in blade side of the present invention angularly positions, hold blade axle journal tightly by chuck and realize Non-clearance Alignment location, angular location flat to blade side will not be held blade axle journal tightly with chuck and be interfered, and achieve axle journal and side the most flat while position, location centering precision is high, it is possible to meet the requirement on machining accuracy of blade.
Description
Technical field
The invention belongs to technical field of aircraft engine part manufacture, particularly relate to a kind of angular precision positioning centering clamping machine
Structure.
Background technology
Blade is as the core building block of aero-engine, and its requirement on machining accuracy is high, but is affected by the limit of blade self structure
System, its locating and machining difficulty is big, as a example by a kind of angle adjustable blade, when processing this kind of blade, it is desirable to the angle of blade profile
Degree is flat with the side of big journal end higher relative accuracy, determines angle so that side is flat, center with axle journal during processing blade.
Using traditional blade centering location clamping mode at present, by the center of circle set position assurance axle journal, side is flat is positioned at circle set
The inside, above circle set, a square opening is opened in flat position, and puts into angular locating piece, then realizes angular by compressing locating piece
Location.
But traditional blade centering location clamping mode also exists some problem following:
1. using circle set location, the machining tolerance overlapped by blade and circle is affected, and exists between certain location when both reassemble
Gap, when angular locating piece compresses, can cause the deflection of locating shaft.
2. when angular locating piece slides in circle set square opening, can there is certain glade plane space, owing to locating surface is less, this is right
Angular positioning effects is relatively big, and angular positioning precision also can be impacted by the mismachining tolerance of angular locating piece.
3. after blade axle journal is held tightly, just cannot carry out angularly have adjusted of blade again, and after the most angularly reserving, enter
Can make again when row axle journal is held tightly to reserve angular changes again, therefore it is difficult to ensure that the angular positioning requirements of blade.
Therefore, use said method can only meet the blade that required precision is the highest, and for the high blade of required precision, this biography
The location mode of system cannot meet the required precision of blade.
Summary of the invention
The problem existed for prior art, the present invention provides a kind of angular precision positioning centering and clamping mechanism, at angle adjustable leaf
In the process of sheet, it is possible to ensure the blade profile center position consistency to journal centre, it is ensured that the angle of blade profile and side
Flat have higher relative accuracy, without gap, location when axle journal is held tightly, it is achieved axle journal is flat with side to be positioned simultaneously, and positioning precision is high.
To achieve these goals, the present invention adopts the following technical scheme that a kind of angular precision positioning centering and clamping mechanism, including
Taper shank, voussoir, cone, pedestal, deck, tapered sleeve, overcoat and chuck, radially have a groove on described taper shank,
Taper shank is centrally along axially having a circular hole, and described voussoir is positioned at the groove of taper shank, and voussoir quantity is two, and two voussoirs are relative
Arrange, and two voussoirs are linked together by fishbolt；Described cone is positioned at the circular hole of taper shank, and the taper seat of cone is same
Time contact with two voussoirs；
Described tapered sleeve the inner is fixedly connected with cone dorsal part, and cone is slidably matched with the circular hole of taper shank, and described coat suit is outside tapered sleeve
Holding, and tapered sleeve is slidably matched with overcoat, overcoat is fixed on pedestal, and pedestal is fixedly connected with taper shank；
Described deck is positioned at inside overcoat and is fixed on pedestal, and chuck is connected with deck by draw-in groove, and chuck matches with tapered sleeve
Close.
Described tapered sleeve outer inner uses inner conical surface structure, and chuck outer surface uses male cone (strobilus masculinus) structure, and chuck entirety uses many lobes
Elastic caoutchouc is used to connect between formula structure, and two lobes；Described chuck inner surface is the face of cylinder, and axle journal big with blade matches.
Described chuck inner surface diameter is ± 0.2mm with the dimensional fits scope of the big axle journal of blade.
Being provided with flexibly positioned piece at described chuck inner surface, flexibly positioned piece flat with blade side matches.
The clamping face of described flexibly positioned piece is not more than 0.005mm with the depth of parallelism of the positioning reference plane of chuck.
Between described tapered sleeve and cone, back-moving spring is installed.
Beneficial effects of the present invention:
The present invention compared with prior art, can be compressed the flat realization in blade side by flexibly positioned piece and angularly position, be held tightly by chuck
Blade axle journal realizes Non-clearance Alignment location, and the flexibly positioned piece of angular location flat to blade side, will not hold tightly with chuck completely
Blade axle journal interferes, be successfully realized axle journal and side flat while position, and location centering precision is high, in blade processing mistake
Cheng Zhong, it is possible to ensure the blade profile center position consistency to journal centre, thus meet the requirement on machining accuracy of blade.
Accompanying drawing explanation
Fig. 1 is a kind of angular precision positioning centering and clamping mechanism structural representation of the present invention；
Fig. 2 is the collet segment structural representation of the present invention；
Fig. 3 is the side view of Fig. 2；
Fig. 4 is a kind of angle adjustable blade schematic diagram；
In figure, 1 taper shank, 2 voussoirs, 3 cones, 4 pedestals, 5 decks, 6 tapered sleeves, 7 overcoats, 8 chucks,
9 flexibly positioned pieces, 10 fishbolts, 11 back-moving springs, 12 blade sides are flat, the 13 big axle journals of blade, 14 blades
Pilot pin, 15 flexibly positioned pieces of clamping faces, 16 chuck positioning reference planes.
Detailed description of the invention
The present invention is described in further detail with specific embodiment below in conjunction with the accompanying drawings.
As shown in Figure 1, 2, 3, a kind of angular precision positioning centering and clamping mechanism, including taper shank 1, voussoir 2, cone 3, base
Seat 4, deck 5, tapered sleeve 6, overcoat 7 and chuck 8, radially have a groove, at taper shank 1 center on described taper shank 1
Having a circular hole vertically, described voussoir 2 is positioned at the groove of taper shank 1, and voussoir 2 quantity is two, and two voussoirs 2 are relative
Arrange, and two voussoirs 2 are linked together by fishbolt 10；Described cone 3 is positioned at the circular hole of taper shank 1, cone 3
Taper seat contact with two voussoirs 2 simultaneously；
Described tapered sleeve 6 the inner is fixedly connected with cone 3 dorsal part, and cone 3 is slidably matched with the circular hole of taper shank 1, and described overcoat 7 overlaps
Being contained in tapered sleeve 6 outer end, and tapered sleeve 6 is slidably matched with overcoat 7, overcoat 7 is fixed on pedestal 4, pedestal 4 and taper shank 1 phase
It is connected；
Described deck 5 is positioned at inside overcoat 7 and is fixed on pedestal 4, and chuck 8 is connected with deck 5 by draw-in groove, and chuck
8 match with tapered sleeve 6.
Described tapered sleeve 6 outer inner uses inner conical surface structure, and chuck 8 outer surface uses male cone (strobilus masculinus) structure, and chuck 8 entirety is adopted
Use and between three-clove style structure, and two lobes, use elastic caoutchouc to connect；Described chuck 8 inner surface is the face of cylinder, and axle big with blade
Neck 13 matches.
Described chuck 8 inner surface diameter is ± 0.2mm with the dimensional fits scope of the big axle journal of blade 13.
Being provided with flexibly positioned piece 9 at described chuck 8 inner surface, flexibly positioned piece 9 flat with blade side 12 is matched.
Described flexibly positioned piece of 9 clamping faces 15 are not more than 0.005mm with the depth of parallelism of chuck 8 positioning reference plane 16.
Between described tapered sleeve 6 and cone 3, back-moving spring 11 is installed.
The first use process of the present invention is described below in conjunction with the accompanying drawings:
In the present embodiment, by Five Axis numerical control blade milling machine, a kind of angle adjustable blade shown in Fig. 4 is carried out blade type facing cut
Processing, needs axle journal 13 big to blade and blade pilot pin 14 to hold tightly before processing, and by the leaf of blade big axle journal 14 end
Sheet side flat 12 controls blade angle.
First, by taper shank 1, the present invention is connected on the main shaft of milling machine, chooses an inspection plug, wherein check plug
The diameter of diameter axle journal big with blade 13 is consistent, is inserted in chuck 8 by inspection plug, utilizes spanner to screw fishbolt 10,
Make two voussoirs 2 close to each other along groove, promote cone 3 to move in taper shank 1 circular hole by voussoir 2, and then band mantle
Set 6 moves in overcoat 7, and makes chuck 8 inwardly tighten up by the movement of tapered sleeve 6, thus realizes chuck 8 and hold inspection core tightly
Rod.
Then, working origin and coordinate system are set up by inspection plug and chuck 8 positioning reference plane 16.Spanner is utilized to unclamp clamping
Bolt 10, makes two voussoirs 2 be located remotely from each other along groove, and under back-moving spring 11 acts on, cone 3 is return, and then drives
Tapered sleeve 6 is return, and is return by tapered sleeve 6 and makes chuck 8 return to free state from the state of tightening up, and now chuck 8 unclamps, will inspection
Test plug to unload.
Finally, inserting in chuck 8 by the big axle journal of blade 13 of angle adjustable blade to be processed, blade side flat 12 is at contact bullet
Property locating piece 9 can experience in a flash certain resistance, then firmly inwardly push away and make the clamping face 15 of flexibly positioned piece 9 complete
Fitting in blade side flat 12, thus realize the angular location of blade, refer again to inspection plug holds mode tightly, axle big to blade
Neck 13 is held tightly, finally utilizes modular toolholder to hold blade pilot pin 14 tightly, the most just can start blade type facing cut and add
Work.
In order to adapt to different leaves and journal size thereof, chuck 8 quantity is some, and the inner surface diameter of some chucks 8 is the most each
Differ, according to the journal size of respective vanes, the chuck 8 of optional correspondingly-sized, and in the present invention, carry out quick-replaceable,
It is achieved thereby that the location centering clamping to different leaves, meet the processing request of different leaves.
The taper shank 1 of the present invention also can use the versions such as flange-type, with the connection request of satisfied different machining tools.
Scheme in embodiment is also not used to limit the scope of patent protection of the present invention, all equivalence enforcement done without departing from the present invention
Or change, it is both contained in the scope of the claims of this case.
Claims (5)
1. an angular precision positioning centering and clamping mechanism, it is characterised in that: include taper shank, voussoir, cone, pedestal, deck,
Tapered sleeve, overcoat and chuck, radially have a groove on described taper shank, at taper shank centrally along axially having a circular hole, described
Voussoir is positioned at the groove of taper shank, and voussoir quantity is two, and two voussoirs are oppositely arranged, and two voussoirs are by fishbolt even
It is connected together；Described cone is positioned at the circular hole of taper shank, and the taper seat of cone contacts with two voussoirs simultaneously；
Described tapered sleeve the inner is fixedly connected with cone dorsal part, and cone is slidably matched with the circular hole of taper shank, and described coat suit is outside tapered sleeve
Holding, and tapered sleeve is slidably matched with overcoat, overcoat is fixed on pedestal, and pedestal is fixedly connected with taper shank；
Described deck is positioned at inside overcoat and is fixed on pedestal, and chuck is connected with deck by draw-in groove, and chuck matches with tapered sleeve
Close；
Described tapered sleeve outer inner uses inner conical surface structure, and chuck outer surface uses male cone (strobilus masculinus) structure, and chuck entirety uses many lobes
Elastic caoutchouc is used to connect between formula structure, and two lobes；Described chuck inner surface is the face of cylinder, and axle journal big with blade matches.
One the most according to claim 1 angular precision positioning centering and clamping mechanism, it is characterised in that: table in described chuck
Face diameter is ± 0.2mm with the dimensional fits scope of the big axle journal of blade.
One the most according to claim 1 angular precision positioning centering and clamping mechanism, it is characterised in that: in described chuck
Surface is provided with flexibly positioned piece, and flexibly positioned piece flat with blade side matches.
One the most according to claim 3 angular precision positioning centering and clamping mechanism, it is characterised in that: described flexibly positioned
The clamping face of block is not more than 0.005mm with the depth of parallelism of the positioning reference plane of chuck.
One the most according to claim 1 angular precision positioning centering and clamping mechanism, it is characterised in that: described tapered sleeve with
Back-moving spring is installed between cone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410632137.9A CN104400521B (en) | 2014-11-10 | 2014-11-10 | A kind of angular precision positioning centering and clamping mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410632137.9A CN104400521B (en) | 2014-11-10 | 2014-11-10 | A kind of angular precision positioning centering and clamping mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104400521A CN104400521A (en) | 2015-03-11 |
| CN104400521B true CN104400521B (en) | 2016-09-07 |
Family
ID=52638220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410632137.9A Expired - Fee Related CN104400521B (en) | 2014-11-10 | 2014-11-10 | A kind of angular precision positioning centering and clamping mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104400521B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105300216B (en) * | 2015-11-19 | 2018-04-20 | 中国南方航空工业(集团)有限公司 | Blade profile measuring device |
| CN106965339B (en) * | 2017-04-07 | 2019-06-14 | 苏州赫瑞特电子专用设备科技有限公司 | A kind of centering location structure of multi-line cutting machine |
| CN110052855A (en) * | 2019-04-01 | 2019-07-26 | 杭州泽正机械有限公司 | A kind of high-accuracy spring perch |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2641996A2 (en) * | 1988-11-15 | 1990-07-27 | Pfalzgraf Emile Epb Sa | CONICAL TAIL MOUNTING DEVICE, ESPECIALLY 7 / 24E CONE, WITH CONE AND SIDE APPLICATION FOR ATTACHMENTS, TOOL HOLDERS AND TOOLS |
| DE29502137U1 (en) * | 1995-02-09 | 1996-06-05 | Siemens AG, 80333 München | Clamping device for a workpiece to be held in a hollow shaft |
| CN201211621Y (en) * | 2008-07-14 | 2009-03-25 | 南京数控机床有限公司 | Elastic gripping device |
| CN201295851Y (en) * | 2008-11-05 | 2009-08-26 | 环一军 | Clamping device for turning rotor |
| CN203900968U (en) * | 2014-04-22 | 2014-10-29 | 兰溪市海德机床制造有限公司 | Centrifugal chuck of spindle |
-
2014
- 2014-11-10 CN CN201410632137.9A patent/CN104400521B/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN104400521A (en) | 2015-03-11 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 110043 Dong TA street, Dadong District, Shenyang, Liaoning Province, No. 6 Patentee after: Chinese Hangfa Shenyang Liming Aero engine limited liability company Address before: 110043 Dong TA street, Dadong District, Shenyang, Liaoning Province, No. 6 Patentee before: Liming Aeroplane Engine (Group) Co., Ltd., Shenyang City |
|
| CP01 | Change in the name or title of a patent holder | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160907 Termination date: 20201110 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |