CN108372337A - A kind of positioning of blade and fixing device and its realize blade positioning and fixed method - Google Patents
A kind of positioning of blade and fixing device and its realize blade positioning and fixed method Download PDFInfo
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- CN108372337A CN108372337A CN201611184597.5A CN201611184597A CN108372337A CN 108372337 A CN108372337 A CN 108372337A CN 201611184597 A CN201611184597 A CN 201611184597A CN 108372337 A CN108372337 A CN 108372337A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
- B23H11/00—Auxiliary apparatus or details, not otherwise provided for
- B23H11/003—Mounting of workpieces, e.g. working-tables
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Abstract
The present invention relates to a kind of positioning of blade and fixing device and its realize blade positioning and fixed method.The device is mainly made of positioning seat, voussoir, blade fixture, the first locating piece, 2 the second locating pieces, screws.Anchor point corresponding with 6 point location of blade is designed on the device, 4 anchor points on 2 anchor points and positioning seat and locating piece on blade fixture collectively form 6 point positioning systems, 6 anchor points of blade and 6 intimate contacts of blade, realize blade high accuracy positioning;And utilize the anchor point A ' and anchor point B ' on blade fixture, an and adaptive location point formed in a self-adaptive manner, 3 points of supports are constituted, then applies pressing force and realizes that blade high-precision is fixed, and the positioning accuracy of the device is high, fixation is reliable, easy to operate.
Description
Technical field
It the present invention relates to a kind of positioning of blade and fixing device and its realizes blade positioning and fixed method, belongs to blade
The special processs manufacturing field such as electro-hydraulic beam, electrical discharge machining.
Background technology
It includes mainly tenon and blade to have a large amount of blade parts, one of which blade part in engine, and tenon position adds
Work goes out multiple tenon tooths.Tenon position is processed using precision machinery, has higher precision, under normal conditions as the base of blade processing
Tenon is put into tenon fixture by standard, and the positioning and fixation for realizing blade are in close contact by blade tenon tooth and fixture, is then added
Hole on work blade or slot,
The machining accuracy of tenon is higher, but there is certain mismachining tolerance after all, therefore, when the locating blades on the basis of tenon
When, blade just will produce error with respect to tenon, be particularly away from the blade tip position of tenon, and error bigger is easy to cause on blade
Hole or groove location degree it is overproof, eventually lead to the reduction of blade performance, blade service life significantly shortens.
According to blade processing needs, determine 6 anchor points on tenon and blade, tenon position have anchor point point 1, point 2,
There are anchor point point 3, point 5 in point 4, blade upper end, have anchor point point 6 on pipes' analysis.It is required that blade cannot be made again with this 6 point location
With tenon clamping position method.Therefore, there is an urgent need for develop a kind of blade high-precision location technique for meeting 6 point locations and requiring.
Invention content
For the needs using electro-hydraulic beam, electric spark special processing technology machining small on blade, according to the 6 of blade
Anchor point(Tenon spots localization point A, anchor point B, anchor point D, blade upper end anchor point C, anchor point E, biology is fixed on pipes' analysis
Site F), a kind of positioning of blade and fixing device are devised, 6 high accuracy positioning dot systems are created, 2 on blade fixture are fixed
4 anchor points on site and positioning seat and locating piece collectively form 6 point positioning systems, 6 anchor points of blade with this 6 points continuously
Gap contacts, and realizes blade high accuracy positioning;And using on blade fixture anchor point A ' and anchor point B ' and one with adaptive
The adaptive location point that mode is formed is answered, 3 points of supports are constituted, then applies pressing force and realizes that blade high-precision is fixed, and the dress
The positioning accuracy set is high, fixed reliable, easy to operate.
In order to solve the above-mentioned technical problem, present invention employs following technical solutions:
A kind of positioning of blade and fixing device, which is characterized in that the device mainly by positioning seat 9, voussoir 10, blade fixture 11,
First the second locating piece 13 of locating piece 12,2, screw 14 form;The left view of positioning seat is integrally L-shaped, and vertical component is side,
Horizontal component is bottom surface, and the epimere of side has the protrusion with step along bottom surface side direction;On the bottom surface, right side is equipped with
First locating piece 12 and the second locating piece 13, the first locating piece position 12 is among two the second locating pieces 13, before the bottom surface
End side surface is equipped with screw 14, the locking positioning after being installed in place on 9 bottom surface of positioning seat for blade fixture 11, blade fixture
11 are placed on the bottom surface of positioning seat 9, and blade fixture 11 is in concave character type, when blade fixture 11 is installed in place, concave character type blade fixture
The side of one end protrusion contacted with 9 side of positioning seat, the side of other end protrusion is determined by the screw 14 on 9 bottom surface of positioning seat
Position, the right side of blade fixture 11 are contacted with the first locating piece 12 and the second locating piece 13, and one end of concave character type blade fixture 11 is convex
The upper surface risen is contacted with the voussoir 10 below the lower face of the protrusion with step of 9 side of positioning seat.
In a preferred technical solution, there are 6 anchor points on the blade, respectively:Tenon spots localization point A3,
Anchor point B4, anchor point D5, blade upper end anchor point C6, anchor point E7, anchor point F8 on pipes' analysis, correspondingly, concave character type leaf
There are anchor point A ' 26 and anchor point B ' 27 in the side of the groove of plate clamp, and there have in the upper side of the protrusion of the epimere of positioning seat to be fixed
Site C ' 28 and anchor point E ' 29, the epimere of positioning seat protrusion lower end bottom surface on have anchor point F ' 31, the first locating piece
After upper side has anchor point D ' 30, the blade to be assembled in blade positioning and fixing device, the A3, anchor point B4, determine
Site D5, blade upper end anchor point C6, anchor point E7, anchor point F8 on pipes' analysis, with the anchor point A ' 26, anchor point B '
27, anchor point C ' 28, anchor point D ' 29, anchor point E ' 30, anchor point F ' 31 are corresponded.
In a preferred technical solution, the groove side of the concave character type blade fixture 11 is additionally provided with adaptive location
Point G ' 21 and self-adaptive regulating structure, the self-adaptive regulating structure include mainly spring 25, mandril 24, holding screw 23, pin
Nail 22, fixing screws 18, transiting rod 19, set 20;Set 20 is arranged on the end of transiting rod 19, wherein fixing screws 18 and transition
Bar 19 is withstood on after passing through the threaded hole in one end protrusion of concave character type blade fixture 11 on the tenon tenon tooth of blade the top, with oneself
The other end protrusion of 21 horizontal corresponding concave character type blade fixtures 11 of adaptation anchor point G ' is equipped with the first threaded hole, the threaded hole
It is interior that screw is housed, it is additionally provided in the protrusion and is equipped with tightly with mutually perpendicular second threaded hole of the first threaded hole, the second threaded hole
Determine screw, third threaded hole be equipped with horizontal corresponding 9 side of positioning seat adaptive location point G ' 21, in third threaded hole according to
It is secondary that mandril 24 and spring 25 be installed, the centerline parallel of the first threaded hole and third threaded hole, the mandril in third threaded hole
24 contact with the pin 22 in the first threaded hole, spring (5 promotion mandrils 24 are when moving downward, mandril 24 push again pin 22 to
Left movement;After blade realizes 6 point location on such devices, adaptive location point G ' corresponding with 22 end face of pin 21 is total
It is under the effect of 25 elastic force of spring and the tenon tooth of blade tenon contacts, by tightening holding screw 23 by 22 positioning and locking of pin,
To realize the fixation of adaptive location point G ' 21.
It is a kind of to realize blade positioning and fixed method using above-mentioned device, which is characterized in that include the following steps:
The assembling of the first step, device
First locating piece 12 and 2 the second locating pieces 13 are mounted on by screw on positioning seat;Manual blades fixture 11, by it
It is placed on the bottom surface of positioning seat 9, then pushes blade fixture 11 and the first locating piece 12 and the contact of the second locating piece 13, most
The side of pusher movable vane plate clamp 11 and positioning seat 9 contacts, and the realization of blade fixture 11 is accurately positioned, after blade fixture 11 positions,
Realize that blade fixture 11 is reliable accurate fixed by voussoir 10, screw 14;
The positioning of second step, blade:6 anchor points on Manual blades and device correspond contact, realize blade in device
In high accuracy positioning;
The positioning of third step, adaptive location point G ' 21:Blade positioning after, pin 22 25 elastic force of spring effect under and blade
The tenon tooth of tenon contacts, by tightening holding screw 23 by 22 positioning and locking of pin, to realize adaptive location point G's ' 21
It is fixed;
The fixation of 4th step, blade:It tightens fixing screws 18 and pushes transiting rod 19 and set 20, the end face of set is to blade tenon tooth one
Blade tenon is pressed in and forms supported at three point by adaptive location point G ' 21 and anchor point A ' 26 and anchor point B ' 27 by thrust,
Realize the fixation of blade.
The technique effect of the present invention is as follows:
(1)A kind of positioning of blade and fixing means are devised, realizes that blade fixture exists by positioning seat, locating piece, voussoir, screw
High accuracy positioning on positioning seat and fixation constitute blade high precision 16 point positioning system, realize blade high accuracy positioning;
(2)Utilize 2 anchor points and the anchor point formed in a self-adaptive manner of tenon lower part one on blade tenon, structure
Supported at 3 points, then apply pressing force and realize that blade is fixed, the position of pressing force by three-point shape at Delta Region in
Portion;
(3)After one blade is by 6 point locations, it is only necessary to tighten a holding screw and a fixing screws, you can realize leaf
Piece is fixed, simple to operate.
(4)Blade fixture realizes being accurately positioned on positioning seat by 1 voussoir and 1 screw 1 and fixes that positioning is simple
Single precision is high;
(5)4 anchor points on 2 anchor points and positioning seat and locating piece on blade fixture collectively form 6 point positioning systems,
By disposable numerical control milling Combined machining, have the characteristics that high-precision;
(6)By spring, the post rod mechanism on positioning seat, pin end face adaptive location point is adaptive on realization blade fixture
High accuracy positioning;And realize that pin is fixed by a holding screw;
Figure of description
Fig. 1 common blade positioning devices;
6 anchor point schematic diagrames on Fig. 2 blades;
The partial view of anchor point " 6 " on Fig. 3 blades;
The left side view of the blade positioning and fixing device of Fig. 4 present invention;
The right side view of the blade positioning and fixing device of Fig. 5 present invention;
The structure and anchor point schematic diagram of the blade positioning and the blade fixture in fixing device of Fig. 6 present invention;
Blade positioning before the blade fixture assembling of Fig. 7 present invention and fixture structure figure;
Blade positioning after the blade fixture assembling of Fig. 8 present invention and fixture structure figure;
Installation diagram of the blade of Fig. 9 present invention in blade positioning and fixture structure;
Assembly left view of the blade of Figure 10 present invention in blade positioning and fixture structure;
The echelon sectional view of the B-B direction of Figure 11 Figure 10;
The blade of Figure 12 present invention fixes schematic diagram;
The side view of Figure 13 Figure 12.
In figure:1- tenon fixtures;2- blades;3- anchor points A;4- anchor points B;5- anchor points C;6- anchor points D;7- is positioned
Point E;8- anchor points F;9- positioning seats;10- voussoirs;11- blade fixtures;The first locating pieces of 12-, the second locating pieces of 13-;14- spiral shells
Nail;The sides 15-;16, bottom surface;17- positioning surfaces;18- fixing screws, 19- transiting rods;20- covers;21- adaptive location points G ';
22- pins;23- holding screws;24- mandrils;25- springs;26- anchor points A ';27- anchor points B ';28- anchor points C ';29- is fixed
Site D ';30- anchor points E ';31- anchor points F '.
Specific implementation mode
With reference to specific embodiment and Figure of description to a kind of blade positioning of the present invention and fixing device and method
It is further elaborated, but the protection content of the present invention is not limited to following embodiment.
Embodiment 1
6 anchor points on blade are as shown in Figures 2 and 3, respectively tenon spots localization point A3, anchor point B4, anchor point D5, leaf
Piece upper end anchor point C6, anchor point E7, anchor point F8 on pipes' analysis.
Blade position and fixing device it is as shown in Figures 4 and 5, the device mainly by positioning seat 9, voussoir 10, blade fixture 11,
First the second locating piece 13 of locating piece 12,2, screw 14 form;The left view of positioning seat and the right side regard whole L-shaped, vertical component effect
It is divided into side, horizontal component is bottom surface, and the epimere of side has the protrusion with step along bottom surface direction;It is right on the bottom surface
Side is equipped with the first locating piece and the second locating piece, and the first locating piece is located among two the second locating pieces, before the bottom surface
End side surface is equipped with screw, and the locking positioning after being installed in place on positioning seat bottom surface for blade fixture, blade fixture is placed in
On the bottom surface of positioning seat, blade fixture as shown in Figure 6 is in concave character type.Set uses the lower material of the hardness such as brass to prevent from scratching
Tenon surface.Blade fixture is used for positioning and fixed blade.
When installation, Manual blades fixture places it on the bottom surface of positioning seat, and blade fixture and first is then pushed to determine
Position block and the contact of the second locating piece finally push the contact of the side of blade fixture and positioning seat, blade fixture realization to be accurately positioned,
After blade fixture positioning, realize that blade fixture is reliably accurately fixed by voussoir, screw;
When blade fixture is installed in place, the side of one end protrusion of concave character type blade fixture is contacted with positioning seat side, the other end
The side of protrusion is positioned by the screw on positioning seat bottom surface, and the right side of blade fixture connects with the first locating piece and the second locating piece
Touch, the upper surface of one end protrusion of concave character type blade fixture under raised lower face of the positioning seat side with step
The voussoir contact of side.
Blade positions and 6 anchor points of fixing device are:There is anchor point A ' in the side of the groove of concave character type blade fixture
26 and anchor point B ' 27, the epimere of positioning seat protrusion upper side on have anchor point C ' 28 and anchor point E ' 30, positioning seat
Epimere protrusion lower end bottom surface on there is anchor point F ' 31, the first locating piece upper side to have anchor point D ' 29, blade is in leaf
Piece is positioned with after assembly in fixing device, blade upper end anchor point C6, anchor point A3, anchor point B4, anchor point D5 on blade determine
Site E7, anchor point F8 on pipes' analysis, with the anchor point A ' 26 in described device, anchor point B ' 27, anchor point C ' 28, positioning
Point D ' 29, anchor point E ' 30, anchor point F ' 31 are corresponded.
The structure before and after anchor point distribution and assembling on device is as described in Fig. 6-8.6 anchor points are in numerically-controlled machine tool
Upper disposable Combined machining, contour accuracy are less than ± 0.02mm.
As figs 11-13, in addition to above-mentioned 6 point location, which is also provided with adaptive location point G ' 21 and corresponding
Self-adaptive regulating structure.The groove side of the concave character type blade fixture is additionally provided with adaptive location point G ' and automatic adjusument knot
Structure, the self-adaptive regulating structure include mainly spring 25, mandril 24, holding screw 23, pin 22, fixing screws 18, transition
Bar 19, set 20;It is set on the end of transiting rod, wherein fixing screws and transiting rod pass through one end of concave character type blade fixture
It is withstood on after threaded hole in protrusion on the tenon tenon tooth of blade the top, with the horizontal corresponding concave character type leaves of adaptive location point G '
The other end protrusion of plate clamp is equipped with the first threaded hole, and screw is housed in the threaded hole, is additionally provided with and the first spiral shell in the protrusion
Mutually perpendicular second threaded hole of pit, the and threaded hole is equipped with holding screw, it is horizontal corresponding with adaptive location point G '
Positioning seat side is equipped with third threaded hole, and mandril and spring, the first threaded hole and third are sequentially installed in third threaded hole
The centerline parallel of threaded hole, the dowel contact in mandril and the first threaded hole in third threaded hole, spring push mandril to
When left movement, mandril pushes pin to move downward again;After blade realizes 6 point location on such devices, with pin end face pair
The adaptive location point G ' answered is always contacted under spring force effect with the tenon tooth of blade tenon, will by tightening holding screw
Pin positioning and locking, to realize the fixation of adaptive location point G '.
The center line of holding screw and pin is orthogonal.Spring push mandril move downward, mandril push again pin to
Left movement.Tightening holding screw can be by pin positioning and locking;It tightens fixing screws and pushes transiting rod and set, the end face of set is to leaf
One thrust of piece tenon tooth is with fixed blade.
In use, by following operation:
The assembling of the first step, device
First locating piece and 2 the second locating pieces 2 are mounted on by screw on positioning seat;Manual blades fixture, is placed
On the bottom surface of positioning seat, blade fixture and the first locating piece and the contact of the second locating piece are then pushed, finally pushes blade folder
The side of tool and positioning seat contacts, and blade fixture realization is accurately positioned, and after blade fixture positioning, leaf is realized by voussoir, screw
Plate clamp is reliably accurately fixed;
The positioning of blade fixture:Manual blades fixture, places it on the bottom surface of positioning seat, then pushes blade fixture and 2
Locate positioning surface contact, finally pushes the contact of the side of blade fixture and positioning seat;In short, being exactly by blade fixture and bottom surface 16,2
Place's positioning surface 17, side 15 contact simultaneously, and realization is accurately positioned.
The fixation of blade fixture:After blade fixture positioning, realize that blade fixture is reliably accurately fixed by voussoir, screw.
The positioning of second step, blade:6 anchor points on Manual blades and device contact simultaneously, midpoint 1~6 minutes
It is not contacted with 6 anchor points one-to-one correspondence on blade, is achieved that the high accuracy positioning of blade in a device.
The positioning of third step, adaptive location point G ':Blade positioning after, pin spring force effect under and blade tenon
Tenon tooth contact, by tightening holding screw by pin positioning and locking, to realize the fixation of adaptive location point G ';
The fixation of 4th step, blade:Tightening fixing screws pushes transiting rod and set, the end face of set to give blade tenon tooth one thrust,
Blade tenon is pressed in, supported at three point is formed by adaptive location point G ' and anchor point A ' and anchor point B ', realizes consolidating for blade
It is fixed.Supported at three point is collectively formed in anchor point A ', B ' i.e. after adaptive location point G ' locking positionings and on device.Fixed spiral shell
The central part for the Delta Region that the center line of nail is constituted by 3 points tightens fixing screws and pushes transiting rod and set, the end of set
Face gives blade tenon tooth one thrust, and blade tenon is pressed in supported at three point, realizes the fixation of blade.
Claims (5)
1. a kind of blade positioning and fixing device, which is characterized in that the device is mainly by positioning seat(9), voussoir(10), blade folder
Tool(11), the first locating piece(12), 2 the second locating pieces(13), screw(14)Composition;The left view of positioning seat is integrally L-shaped, hangs down
Straight part is side(15), horizontal component is bottom surface(16), side(15)Epimere have along bottom surface side direction with step
Protrusion;The bottom surface(16)On, right side is equipped with the first locating piece(12)With the second locating piece(13), the first locating piece position(12)
In two the second locating pieces(13)The front end side of centre, the bottom surface is equipped with screw(14), it is used for blade fixture(11)
Positioning seat(9)Locking positioning after being installed in place on bottom surface, blade fixture(11)It is placed in positioning seat(9)Bottom surface on, blade folder
Tool(11)In concave character type, blade fixture(11)When being installed in place, the side of one end protrusion of concave character type blade fixture and positioning seat
(9)Side contacts, and the side of other end protrusion is by positioning seat(9)Screw on bottom surface(14)Positioning, blade fixture(11)The right side
Side and the first locating piece(12)With the second locating piece(13)Contact, concave character type blade fixture(11)One end protrusion upper surface with
Positioned at positioning seat(9)Voussoir below the lower face of the protrusion with step of side(10)Contact.
2. blade positioning according to claim 1 and fixing device, it is characterised in that:There are 6 anchor points on the blade,
Respectively:Tenon spots localization point A(3), anchor point B(4), anchor point D(5), blade upper end anchor point C(6), anchor point E
(7), anchor point F on pipes' analysis(8), correspondingly, there is anchor point A ' in the side of the groove of concave character type blade fixture(26)And positioning
Point B '(27), the epimere of positioning seat protrusion upper side on have anchor point C '(28)With anchor point E '(29), positioning seat
There is anchor point F ' on the lower end bottom surface of the protrusion of epimere(31), the first locating piece upper side has anchor point D '(30), the leaf
After piece assembles in blade positioning and fixing device, the anchor point A(3), anchor point B(4), anchor point D(5), blade upper end
Anchor point C(6), anchor point E(7), with the anchor point A '(26), anchor point B ' (27), anchor point C ' (28), anchor point D '
(29), anchor point E ' (30), anchor point F ' (31) are corresponded.
3. blade positioning according to claim 2 and fixing device, it is characterised in that:The concave character type blade fixture (11)
Groove side be additionally provided with adaptive location point G ' (21) and self-adaptive regulating structure, the self-adaptive regulating structure includes mainly
Spring (25), mandril (24), holding screw (23), pin (22), fixing screws (18), transiting rod (19), set (20);It covers (20)
It is arranged on the end of transiting rod (19), wherein fixing screws (18) and transiting rod (19) pass through concave character type blade fixture (11)
It is withstood on after threaded hole in the protrusion of one end on the tenon tenon tooth of blade the top, it is horizontal corresponding with adaptive location point G ' (21)
The other end protrusion of concave character type blade fixture (11) is equipped with the first threaded hole, and screw is housed in the threaded hole, is gone back in the protrusion
Equipped with mutually perpendicular second threaded hole of the first threaded hole, the second threaded hole is equipped with holding screw, with adaptive location point
Horizontal corresponding positioning seat (9) sides G ' (21) are equipped with third threaded hole, and mandril (24) is sequentially installed in third threaded hole
With spring (25), the centerline parallel of the first threaded hole and third threaded hole, the mandril (24) in third threaded hole and the first spiral shell
Pin (22) contact in pit, spring (25) push mandril (24) when moving downward, mandril (24) and push pin (22) to
Left movement;After blade realizes 6 point location on such devices, adaptive location point G ' corresponding with pin (22) end face
(21) it is always contacted with the tenon tooth of blade tenon under the effect of spring (25) elastic force, by tightening holding screw (23) by pin
(22) positioning and locking, to realize the fixation of adaptive location point G ' (21).
4. blade positioning according to claim 2 or 3 and fixing device, which is characterized in that 6 positioning in described device
Point is the primary property Combined machining on numerically-controlled machine tool, and contour accuracy is less than ± 0.02mm.
5. a kind of realization blade positioning and fixed method, which is characterized in that include the following steps:
The assembling of the first step, device
First locating piece (12) and 2 the second locating pieces (13) are mounted on by screw on positioning seat;Manual blades fixture
(11), it places it on the bottom surface of positioning seat (9), then pushes blade fixture (11) and the first locating piece (12) and second
Locating piece (13) contacts, and finally pushes the contact of the side of blade fixture (11) and positioning seat (9), blade fixture (11) is realized accurate
Positioning after blade fixture (11) positioning, realizes that blade fixture (11) is reliable accurate fixed by voussoir (10), screw (14);
The positioning of second step, blade:6 anchor points on Manual blades and device correspond contact, realize blade in device
In high accuracy positioning;
The positioning of third step, adaptive location point G ' (21):After blade positioning, pin (22) is under the effect of spring (25) elastic force
It contacts with the tenon tooth of blade tenon, by tightening holding screw (23) by pin (22) positioning and locking, adaptively determines to realize
The fixation of site G ' (21);
The fixation of 4th step, blade:It tightens fixing screws (18) and pushes transiting rod (19) and set (20), the end face of set is to blade tenon
Blade tenon is pressed in by adaptive location point G ' (21) and anchor point A ' (26) and anchor point B ' (27) by one thrust of tooth
Supported at three point is formed, realizes the fixation of blade.
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CN201611184597.5A CN108372337B (en) | 2016-12-20 | 2016-12-20 | A kind of blade positioning and fixed device and its method realizing blade positioning and fixing |
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CN109015467A (en) * | 2018-09-05 | 2018-12-18 | 中国航发动力股份有限公司 | A kind of positioning compression device of turbo blade and positioning and compressing method |
CN113681466A (en) * | 2021-08-20 | 2021-11-23 | 中国航发航空科技股份有限公司 | Novel integrated machining clamp for turbine blade of aero-engine and machining process of novel integrated machining clamp |
CN113878522A (en) * | 2021-10-29 | 2022-01-04 | 中国航发北京航空材料研究院 | Working blade detection positioning device and positioning method |
CN114290096A (en) * | 2021-12-31 | 2022-04-08 | 枣庄北航机床创新研究院有限公司 | Flexible clamp for blade machining and clamping method |
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WO2011134903A1 (en) * | 2010-04-26 | 2011-11-03 | Hamuel Maschinenbau Gmbh & Co. Kg | Turbine blade blank and method and device for machining a turbine blade blank |
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