CN110252999A - Improved precision forged blade dedicated pouring fixture - Google Patents
Improved precision forged blade dedicated pouring fixture Download PDFInfo
- Publication number
- CN110252999A CN110252999A CN201910620597.2A CN201910620597A CN110252999A CN 110252999 A CN110252999 A CN 110252999A CN 201910620597 A CN201910620597 A CN 201910620597A CN 110252999 A CN110252999 A CN 110252999A
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- China
- Prior art keywords
- blade
- half module
- locating piece
- vee
- screw
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Classifications
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- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Abstract
The present invention provides a kind of improved precision forged blade dedicated pouring fixtures, it before can solve the existing blade package to forging needs that first the positioning datum on root cap boss is transformed on leading edge or exhaust side, the error in benchmark conversion process is increased, improves that machining accuracy is difficult to the problem of meeting the required precision of package positioning datum in the required precision and intake and exhaust that overlap removes to intake and exhaust.It includes leading edge half module, blade back half module and leaf basin half module, and installation is there are three type face positioning pin and a listrium positioning pin on blade back half module, and three compression of installation are sold on leaf basin half module, and the blade root of forging blade exposes to type chamber；The integral shroud boss and blade root boss that forging blade is corresponded on blade back half module are separately installed with vee-block component, vee-block component is equipped with V-shaped groove, vee-block component can carry on the back direction along forging blade basin and move relative to blade back half module, be also separately installed on blade back half module for compressing holding down assembly for vee-block component from outside dynamic.
Description
Technical field
It is specially a kind of improved the present invention relates to the processing tool field of aero-engine, gas turbine precision forged blade
Precision forged blade dedicated pouring fixture.
Background technique
In general, determining for convenience forging blade when aero-engine, gas turbine precision forged blade process blade root
Position, and the rigidity for being processed forging blade is improved to avoid machining deformation, use dedicated pouring fixture by forging leaf in technique
Piece carries out precision positioning, and is poured the alloy block that low-melting alloy forms regular shape, complicated on forging blade will be determined with reaching
Position benchmark is converted into the purpose that regular positioning datum is machined on alloy block.
Existing dedicated pouring fixture, a kind of finish forge as disclosed in the patent of invention of Patent No. ZL2016213462944
Blade is poured fixture special fixture, is usually positioned using six-point positioning method to forging blade, wherein six positioning bases
Standard is respectively forging blade leading edge or two positioning datums being vented on side, a positioning datum and blade on listrium
Three positioning datums on type face.Due to need using leading edge or exhaust side on positioning datum must before casting
First the overlap on forging blade intake and exhaust side must be removed.Traditional intake and exhaust side overlap removal process are as follows: on forging blade
Six positioning datums (respectively blade root boss, integral shroud boss, a positioning datum on listrium and three on blade type face
Positioning datum) by its clamping on milling overlap fixture, the clout on intake and exhaust hem width degree direction is removed by milling, then passes through hand
Work throws the processing that the mode repaired completes the shape of intake and exhaust edge profile.After overlap removal, then will be on forging blade root cap boss
Two positioning datums are transferred to leading edge or exhaust side, and press from both sides with other four positioning datums together as package dedicated pouring
6 points of tool positioning.
It relates in this way, being machined from forging blade to blade root to two secondary standard conversion processes, is by root cap for the first time
Positioning datum on boss is transformed on leading edge or exhaust side, is that the positioning datum on forging blade is transformed into alloy for the second time
On block.Two secondary standard conversion processes have the disadvantage in that
1) benchmark conversion process becomes complicated, increases the error in benchmark conversion process；
2) for those to the lower forging blade of requirement on machining accuracy at intake and exhaust side, in order to guarantee to position at intake and exhaust side
The positioning accuracy of benchmark, it is also necessary to high-precision processing be carried out to intake and exhaust side, improve the precision to the removal of intake and exhaust side overlap
It is required that, it is difficult to production capacity when release processing intake and exhaust side work step；
3) it when overlap removes, throws repair the intake and exhaust side location status that process destructible mills by hand, it is difficult to meet intake and exhaust side
Required precision as package positioning datum.
Summary of the invention
For before the existing blade package to forging needing that the positioning datum on root cap boss is first transformed into leading edge or row
On gas side, the error in benchmark conversion process is increased, is improved to the required precision of intake and exhaust side overlap removal and into row
Gas side machining accuracy is difficult to the technical issues of meeting the required precision of package positioning datum, and the present invention provides a kind of improved essences
Blade dedicated pouring fixture is forged, it is fixed package directly to be carried out to forging blade using root cap boss and remaining four positioning datum
Position reduces by a secondary standard conversion process, and then reduces the error generated in benchmark conversion process, release processing intake and exhaust side work step
When production capacity, improve package positioning accuracy.
Its technical solution is such that a kind of improved precision forged blade dedicated pouring fixture comprising leading edge half module with
And it is oppositely arranged on the blade back half module and leaf basin half module of leading edge half module two sides, the blade back half module and the leaf basin half module
It is concave body and surrounds the type chamber of a top opening for being poured alloy, the blade back jointly with the leading edge half module
The three type face positioning pins and an edge for location edge plate runner face for positioning blade back type face are separately installed on half module
Plate positioning pin is separately installed with the pressure for cooperating one by one with three type face positioning pins and compressing forging blade on the leaf basin half module
Tight pin, the blade root of the forging blade are exposed at type chamber front；It is characterized by: corresponding to the forging on the blade back half module
The integral shroud boss and blade root boss of part blade are separately installed with vee-block component, and the vee-block component is equipped with described for positioning
The V-shaped groove of integral shroud boss or the blade root boss, the vee-block component can carry on the back direction relative to described along the forging blade basin
Blade back half module is mobile, and the compression for compressing the vee-block component from outside dynamic is also separately installed on the blade back half module
Component.
It is further characterized by:
The vee-block component corresponding with the blade root boss is the first vee-block component, and the first vee-block component includes
Support, upper locating piece one, lower locating piece one and movable block one, the support are fixedly mounted on the front end face of the blade back half module
On, it is provided with the sliding slot along the direction setting of forging blade basin back on the front end face of the support and is fixed with described for blocking
The cover board of sliding slot, one clearance fit of movable block are mounted in the sliding slot, the upper locating piece one and the lower locating piece
One, which is parallel to the sliding slot direction, is arranged and is respectively and fixedly installed on the movable block one, the upper locating piece one and it is described under
The V-shaped groove is enclosed between the end of locating piece one, the blade root boss can cooperate on insertion the first vee-block component
The V-shaped groove in.
It holds down assembly for compressing holding down assembly for the first vee-block component for first, described first holds down assembly packet
Two Whitney keies are included, two long holes setting up and down are had on the movable block one, the long hole is parallel to the sliding slot,
One end of the Whitney key is fixed on the support, and the other end protrudes into one end far from the V-shaped groove of the long hole, described
Spring one is pressed between Whitney key and the other end of the long hole.
The vee-block component corresponding with the integral shroud boss is the second vee-block component, is provided on the blade back half module
Along the slideway of forging blade basin back direction setting, the slideway is correspondingly arranged with the integral shroud boss, second vee-block
Component includes upper locating piece two, lower locating piece two and movable block two, and two clearance fit of movable block is mounted in the slideway,
The upper locating piece two and the lower locating piece two are parallel to the slideway direction setting, and are respectively and fixedly installed to the movement
On block two, the V-shaped groove, the integral shroud boss are enclosed between the upper locating piece two and the end of the lower locating piece two
It can cooperate and be inserted into the V-shaped groove on the second vee-block component.
It holds down assembly for compressing holding down assembly for the second vee-block component for second, described second holds down assembly packet
Two spring bases are included, two spring bases are setting up and down and are respectively and fixedly connected on the lateral surface of the blade back half module, the shifting
One end far from the type chamber of motion block two stretches out the slideway and is equipped with defining flange, the spring base and the movable block two
Lateral surface between be pressed with spring two.
It further includes fixed plate, and the front end face of the blade back half module is equipped with to be set along the forging blade intake and exhaust edge direction
The feather key set, be provided on the support keyway and with the feather key clearance fit, be also provided with kidney slot on the support, institute
Support is stated to be fixed on by the screw one being threaded through in the kidney slot on the front end face of the blade back half module；The fixed plate is set
It sets above the blade back half module and the support, the blade back half module is corresponded in the fixed plate and is provided with screw clearances hole one,
The corresponding support is provided with screw clearances hole two and threaded hole, and the fixed plate is by being threaded through in the screw clearances hole one
Screw two and the blade back half module are affixed, and the screw three by being threaded through in the screw clearances hole two and the support are solid
It connects, adjusting bolt is fitted in the threaded hole, the lower end for adjusting bolt is connected on the top surface of the support.
The movable block one is provided with groove one on a side end face of the blade root boss, far from the blade root boss
A side end face on have two through-holes one being connected to the groove one, be also provided with up and down on the movable block one
And the countersunk head threaded hole one being connected to the groove one, the upper locating piece one pass through the screw four that is threaded through in the through-hole one
It is fixed on the movable block one, the lower locating piece one is fixed on by the screw five being threaded through in another described through-hole one
On the movable block one, screw six passes through the upper locating piece one and the lower locating piece is screwed in the countersunk head threaded hole together
In one, by being sleeved on the screw four, described between the upper locating piece one, the lower locating piece one and the movable block one
Ceramic insulated column on screw five and the screw six electrically isolates, and electrically leads between the compression pin and the leaf basin half module
It is logical.
The movable block two is provided with groove two on a side end face of the integral shroud boss, far from the integral shroud boss
A side end face on have two through-holes two being connected to the groove two, be also provided with up and down on the movable block two
And the countersunk head threaded hole two being connected to the groove two, the upper locating piece two pass through the screw seven that is threaded through in the through-hole two
It is fixed on the movable block two, the lower locating piece two is fixed on by the screw eight being threaded through in another described through-hole two
On the movable block two, screw nine passes through the upper locating piece two and the lower locating piece two and is screwed in the countersunk head threaded hole
In two, by being sleeved on the screw seven, described between the upper locating piece two, the lower locating piece two and the movable block two
Ceramic insulated column on screw eight and the screw nine electrically isolates, and electrically leads between the compression pin and the leaf basin half module
It is logical.
In three type face positioning pins, one of them is correspondingly arranged with the bizet benchmark on blade back type face, remaining
Two are correspondingly arranged with the root benchmark on blade back type face respectively, type face positioning pin and listrium positioning pin difference
It is electrically isolated by insulating bushing and the blade back half module, is electrically conducted between the compression pin and the leaf basin half module.
Type face positioning pin, the listrium positioning pin and compression pin with forging blade described in sphere-contact,
By conical surface transition between the spherical surface and shank cylinder, the contact point of type face positioning pin and the forging blade is positioning
Point, the pin and the contact point of the forging blade of compressing is to compress point, between the anchor point and the corresponding compression point
Line direction be the forging blade normal direction of the type face at the anchor point.
The beneficial effects of the present invention are:
Precision forged blade dedicated pouring fixture of the invention, is additionally arranged two vee-block components on blade back half module, and vee-block component is
It is movably arranged on blade back half module, can be moved relative to blade back half module along forging blade basin back direction, and can be compacted
Component dynamic compresses, and blade root boss and integral shroud boss can be respectively positioned in the V-shaped groove on two vee-block components, thus two V
Shape block assembly can realize to the positioning of forging blade intake and exhaust edge direction (i.e. limitation forging blade along intake and exhaust edge direction from
By spending) while, forging blade is not limited along the freedom degree in basin back direction and root cap direction, then recycles three type face positioning
The positioning to forging blade basin back direction is realized in pin and compression pin cooperation, using the realization of listrium positioning pin to forging blade root cap side
To positioning, finally realize six precise and stable point locations, fixture of the invention on leading edge or exhaust side due to not being arranged
Anchor point, therefore can save a secondary standard conversion process reduces the error generated in benchmark conversion process, and can reduce into
It is vented the required precision of side overlap removal, the production capacity when work step of intake and exhaust side is processed in release, while being also avoided due to intake and exhaust
Side machining accuracy deficiency is influenced caused by package positioning accuracy.
Detailed description of the invention
Fig. 1 is top view of the invention；
Fig. 2 is the cross-sectional view of the line A-A along Fig. 1；
Fig. 3 is the cross-sectional view of the line B-B along Fig. 1；
Fig. 4 is the overall structure diagram of leading edge half module and blade back half module；
Fig. 5 is the overall structure diagram of leading edge half module and leaf basin half module；
Fig. 6 is overall structure diagram of the invention；
Fig. 7 is the overall structure diagram of conventional forging blade.
Appended drawing reference:
1- type chamber；2- ceramics insulated column；3- insulating bushing；4- chamfering plate；5- backplate；6- loss of weight block；7- fixed plate；
10- leading edge half module；
20- blade back half module；21- type face positioning pin；22- listrium positioning pin；23- slideway；24- feather key；
30- leaf basin half module；31- compresses pin；
40- forging blade；41- blade back type face；42- listrium pipes' analysis；43- blade root；44- integral shroud boss；45- blade root boss；
50- the first vee-block component；51- support；The upper locating piece one of 52-；Locating piece one under 53-；54- movable block one；541- groove
One；55- sliding slot；56- cover board；57- long hole；58- keyway；59- kidney slot；
61- Whitney key；62- spring one；
70- the second vee-block component；The upper locating piece two of 71-；Locating piece two under 72-；73- movable block two；731- groove two；74- limit
Position flange；
81- spring base；82- spring two；
100- screw one；101- screw two；102- screw three；103- adjusts bolt；104- screw four；105- screw five；106-
Screw six；107- screw seven；108- screw eight；109- screw nine.
Specific embodiment
See Fig. 1 to Fig. 7, the precision forged blade dedicated pouring fixture of a modification of the present invention comprising leading edge half module 10
And it is oppositely arranged on the blade back half module 20 and leaf basin half module 30 of 10 two sides of leading edge half module, blade back half module 20 and leaf basin half module 30
It is concave body and surrounds the type chamber 1 of a top opening for being poured alloy, blade back half module jointly with leading edge half module 10
Three type face positioning pins 21 for positioning blade back type face 41 and one are separately installed on 20 for location edge plate runner face 42
Listrium positioning pin 22, be separately installed on leaf basin half module 30 to cooperate one by one with three type face positioning pins 21 and compress forging blade 40
Compression pin 31, the blade root 43 of forging blade 40 is exposed at 1 front of type chamber；The integral shroud of forging blade 40 is corresponded on blade back half module 20
Boss 44 and blade root boss 45 are separately installed with vee-block component, and vee-block component is equipped with for positioning integral shroud boss 44 or blade root
The V-shaped groove of boss 45, vee-block component can carry on the back direction along 40 basin of forging blade (namely perpendicular to forging blade balance angular direction)
It is mobile relative to blade back half module 20, the pressure for compressing vee-block component from outside dynamic is also separately installed on blade back half module 20
Tight component.In the present embodiment, type face positioning pin 21 and listrium positioning pin 22 are respectively positioned between two vee-block components.
See Fig. 1, Fig. 2 and Fig. 6, in precision forged blade dedicated pouring fixture of the invention, V-arrangement corresponding with blade root boss 45
Block assembly is the first vee-block component 50, is held down assembly for compressing holding down assembly for the first vee-block component 50 for first；First V
Shape block assembly 50 includes support 51, upper locating piece 1, lower locating piece 1 and movable block 1, and support 51 is fixedly mounted on leaf
On the front end face for carrying on the back half module 20, it is provided with the sliding slot 55 along the direction setting of 40 basin of forging blade back on the front end face of support 51 and is fixedly mounted with
There is the cover board 56 for blocking sliding slot 55, one 54 clearance fit of movable block is mounted in sliding slot 55, upper locating piece 1 and lower fixed
Position block 1 is parallel to 55 direction of sliding slot and is arranged and is respectively and fixedly installed on movable block 1, upper locating piece 1 and lower positioning
V-shaped groove is enclosed between the end of block 1, blade root boss 45 can cooperate in the V-shaped groove on the first vee-block component 50 of insertion；
First holds down assembly including two Whitney keies 61, has two long holes 57 setting up and down, long hole 57 on movable block 1
It is parallel to sliding slot 55, one end of Whitney key 61 is fixed on support 51, and the other end protrudes into one end of the separate V-shaped groove of long hole 57,
Spring 1 is pressed between Whitney key 61 and the other end of long hole 57.It is designed in this way, after blade root boss is inserted into V-shaped groove,
Just cannot be moved again along intake and exhaust edge direction, realize to blade root boss intake and exhaust edge direction positioning, and blade root boss insert
Can be to the active force of movable block one outward when entering V-shaped groove, while spring one can also give the pressing force of movable block one inwardly, it is real
Now the dynamic of movable block one is compressed, it is ensured that blade root boss can be accurately positioned in V-shaped groove.
See Fig. 1 and Fig. 3, in precision forged blade dedicated pouring fixture of the invention, vee-block group corresponding with integral shroud boss 44
Part is the second vee-block component 70, is held down assembly for compressing holding down assembly for the second vee-block component 70 for second；Blade back half module
The slideway 23 along the direction setting of 40 basin of forging blade back is provided on 20, slideway 23 is correspondingly arranged with integral shroud boss 44, the second vee-block
Component 70 includes upper locating piece 2 71, lower locating piece 2 72 and movable block 2 73, and 2 73 clearance fit of movable block is mounted on slideway
In 23, upper locating piece 2 71 and lower locating piece 2 72 are parallel to the setting of 23 direction of slideway, and are respectively and fixedly installed to movable block two
On 73, V-shaped groove is enclosed between upper locating piece 2 71 and the end of lower locating piece 2 72, integral shroud boss 44 can cooperate insertion
In V-shaped groove on two vee-block components 70；Second holds down assembly including two spring bases 81, and two spring bases 81 are setting up and down simultaneously
It is respectively and fixedly connected on the lateral surface of blade back half module 20, one end of the remote release chamber 1 of movable block 2 73 stretches out slideway 23 and is equipped with limit
Position flange 74, is pressed with spring 2 82 between spring base 81 and the lateral surface of movable block 2 73.It is designed in this way, when integral shroud boss is inserted
After entering V-shaped groove, just cannot be moved again along intake and exhaust edge direction, realize to integral shroud boss intake and exhaust edge direction positioning, and
Integral shroud boss can give the active force of movable block two outward when being inserted into V-shaped groove, while spring two also can be inside to movable block two
The pressing force of side is realized and is compressed to the dynamic of movable block two, it is ensured that integral shroud boss can be accurately positioned in V-shaped groove.In two vee-block groups
Under the co-location of part, forging blade just cannot integrally be moved along intake and exhaust edge direction again, be realized to forging blade in intake and exhaust
The positioning of edge direction.Movable block two can be prevented in the effect of spring two when not filling forging blade by the way that defining flange is arranged
It is lower intracavitary by jacking type.
See that Fig. 1 and Fig. 2, precision forged blade dedicated pouring fixture of the invention further include fixed plate 7, the front end of blade back half module 20
Face is equipped with the feather key 24 that is arranged along 40 intake and exhaust edge direction of forging blade, be provided on support 51 keyway 58 and with feather key 24
Clearance fit is also provided with kidney slot 59 on support 51, and support 51 is fixed on leaf by the screw 1 being threaded through in kidney slot 59
On the front end face for carrying on the back half module 20；Fixed plate 7 is arranged above blade back half module 20 and support 51, and blade back half module is corresponded in fixed plate 7
20 are provided with screw clearances hole one, and corresponding support 51 is provided with screw clearances hole two and threaded hole, and fixed plate 7 is by being threaded through between screw
Screw 2 101 and blade back half module 20 in lyriform pore one is affixed, and the screw 3 102 by being threaded through in screw clearances hole two and branch
Seat 51 is affixed, is fitted in threaded hole and adjusts bolt 103, and the lower end for adjusting bolt 103 is connected on the top surface of support 51.
It is designed in this way the trace regulation, it can be achieved that the height of the vee-block component at blade root boss, specific adjusting method is temporarily to unclamp
Screw one lifts support by rotary screw three upwards, then adjusts bolt by rotation and be lifted off support downwards, and one, which draws one to push up, completes
To the trace regulation of height of support, lock-screw one after adjusting in place.The benefit for carrying out trace regulation to height of support is: 1) disappearing
Except fixture foozle；2) different forging blade dimensional state itself is different, by adjusting the height of support, i.e., adjustable forging
Height of the part blade in casting fixture, ensures that blade dimensions state becomes more consistent, further increases the positioning of forging blade
Precision.
See Fig. 2, is provided with groove 1 on a side end face of the close blade root boss 45 of movable block 1, it is convex far from blade root
Two through-holes being connected to groove 1 one are had on one side end face of platform 45, are also provided on movable block 1 and are passed through up and down
Countersunk head threaded hole one that is logical and being connected to groove 1, upper locating piece 1 are solid by the screw 4 104 being threaded through in through-hole one
It is scheduled on movable block 1, lower locating piece 1 is fixed on movable block by the screw 5 105 being threaded through in another through-hole one
On one 54, screw 6 106 passes through upper locating piece 1 and lower locating piece 1 and is screwed in countersunk head threaded hole one, upper locating piece
One 52, by being sleeved on screw 4 104, screw 5 105 and screw 6 106 between lower locating piece 1 and movable block 1
Seven ceramic insulated columns 2 electrically isolate, and compress and electrically conduct between pin 31 and leaf basin half module 30.It is designed in this way, in use, can incite somebody to action
Screw four and screw five are electrically connected in external control panel, leaf basin half module ground connection, after energization, if screw four, upper fixed
Position block one, forging blade, the circuit compressed between pin, leaf basin half module are connected, then it represents that upper locating piece one is contacted with blade root boss
Well, similarly, it can determine whether lower locating piece one contacts well with blade root boss, to detect whether V-shaped groove is convex with blade root
Platform contact is good, while can avoid circuit and the short circuit of blade back half module again.It, can by ensuring that V-shaped groove contacts well with blade root boss
Guarantee the effective position to blade root boss.
See Fig. 3, is provided with groove 2 731 on a side end face of the close integral shroud boss 44 of movable block 2 73, it is convex far from integral shroud
Two through-holes being connected to groove 2 731 two are had on one side end face of platform 44, are also provided on movable block 2 73 and are passed through up and down
Countersunk head threaded hole two that is logical and being connected to groove 2 731, upper locating piece 2 71 are solid by the screw 7 107 being threaded through in through-hole two
It is scheduled on movable block 2 73, lower locating piece 2 72 is fixed on movable block by the screw 8 108 being threaded through in another through-hole two
On 2 73, screw 9 109 passes through upper locating piece 2 71 and lower locating piece 2 72 and is screwed in countersunk head threaded hole two, upper locating piece
2 71, by being sleeved on screw 7 107, screw 8 108 and screw 9 109 between lower locating piece 2 72 and movable block 2 73
Seven ceramic insulated columns 2 electrically isolate, and compress and electrically conduct between pin 31 and leaf basin half module 30.Similarly, it can detect that V-shaped groove is
It is no to contact the effective position being well effectively ensured to integral shroud boss with integral shroud boss.
See Fig. 1, Fig. 4 and Fig. 5, in three type face positioning pins 21, one of them and the bizet base on blade back type face 41
Standard is correspondingly arranged, and remaining two are correspondingly arranged with the root benchmark on blade back type face 41 respectively, type face positioning pin 21 and edge
Plate positioning pin 22 is electrically isolated by insulating bushing 3 with blade back half module 20 respectively, is compressed between pin 31 and leaf basin half module 30 electrically
Conducting.Similarly, can detect that whether type face positioning pin and listrium positioning pin are good with blade back type face and listrium runner face contact.This
Specific mounting structure and Patent No. in embodiment, between type face positioning pin 21, listrium positioning pin 22 and blade back half module 20
It is identical as the mounting structure between left clamp that arc positioning pin is carried on the back in the patent of invention of ZL2016213462944, compresses pin 31 and leaf
Mounting structure phase of the specific mounting structure also and in the patent of invention between inner arc positioning pin and right clamping body between basin half module 30
Together.
See Fig. 1, Fig. 4 and Fig. 5, type face positioning pin 21, listrium positioning pin 22 and compression pin 31 are with sphere-contact forging
Blade 40 realizes point contact, and it is more accurate to position；It is smooth convenient for subsequent package by conical surface transition between spherical surface and shank cylinder
Demoulding；Type face positioning pin 21 and corresponding compression pin 31 are not coaxially disposed, type face positioning pin 21 and the contact of forging blade 40
Point is anchor point, and the contact point for compressing pin 31 and forging blade 40 is to compress point, the company between anchor point and corresponding compression point
Line direction is normal orientation of the type face of forging blade 40 at anchor point, thereby further ensures that and determines forging blade blade
Position and compression are reliable and stable.
See Fig. 3, chamfering plate 4 is installed on the top surface of leaf basin half module 30, chamfering plate 4 protrudes into type chamber 1, thus in chamfering
Under the action of plate 4, chamfering will form on the alloy block that is formed after casting, convenient for carrying out subsequent clamping and processing to alloy block.
See Fig. 3, backplate 5 is installed on the top surface of blade back half module 20, backplate 5 extends and hides to the outside of blade back half module 20
Spring base 81 is kept off, to play a protective role when being poured alloy to spring base etc..
See Fig. 4 and Fig. 5, inside type chamber 1, blade back half module 20, leaf basin half module 30 have been respectively and fixedly connected on leading edge half module 10
Loss of weight block 6 in irregular shape, to will form groove on alloy block after alloy block demoulding, mitigate the weight of alloy block, together
When save alloy dosage, reduce cost.
Dedicated pouring fixture of the invention when in use, can attach it to the hair of Patent No. ZL2016213462959
On Universal base in bright patent, so that blade back half module 20 and leaf basin half module 30 be driven to do opposite or move towards, forging blade
It is open above type chamber 1 to be poured low-melting alloy thereto after the completion of 40 clampings, after the blade of forging blade 40 is completely wrapped
Alloy block is formed, is converted with completing positioning datum complicated on forging blade to positioning datum regular on alloy block, forging leaf
The blade root 43 of piece 40 exposes to type chamber 1, so that blade root is further processed.
Claims (10)
1. a kind of improved precision forged blade dedicated pouring fixture comprising leading edge half module and be oppositely arranged on the leading edge
The blade back half module and leaf basin half module of half module two sides, the blade back half module and the leaf basin half module be concave body and with the air inlet
Side half module surrounds the type chamber of a top opening for being poured alloy jointly, is separately installed with three use on the blade back half module
In on the type face positioning pin for positioning blade back type face and a listrium positioning pin for location edge plate runner face, the leaf basin half module
It is separately installed with the compression pin for cooperating one by one with three type face positioning pins and compressing forging blade, the blade root of the forging blade
It is exposed at type chamber front；It is characterized by: corresponding to integral shroud boss and the blade root of the forging blade on the blade back half module
Boss is separately installed with vee-block component, and the vee-block component is equipped with for positioning the integral shroud boss or the blade root boss
V-shaped groove, the vee-block component can carry on the back direction along the forging blade basin and move relative to the blade back half module, the blade back
It is also separately installed on half module for compressing holding down assembly for the vee-block component from outside dynamic.
2. a kind of improved precision forged blade dedicated pouring fixture according to claim 1, it is characterised in that: with the blade root
The corresponding vee-block component of boss is the first vee-block component, and the first vee-block component includes support, upper locating piece
One, lower locating piece one and movable block one, the support is fixedly mounted on the front end face of the blade back half module, before the support
It is provided with the sliding slot along the direction setting of forging blade basin back on end face and is fixed with the cover board for blocking the sliding slot, it is described
One clearance fit of movable block is mounted in the sliding slot, and the upper locating piece one and the lower locating piece one are parallel to the sliding slot
Direction is arranged and is respectively and fixedly installed on the movable block one, the end of the upper locating piece one and the lower locating piece one it
Between be enclosed the V-shaped groove, the blade root boss, which can cooperate, to be inserted into the V-shaped groove on the first vee-block component.
3. a kind of improved precision forged blade dedicated pouring fixture according to claim 2, it is characterised in that: for compressing
It states holding down assembly for the first vee-block component to hold down assembly for first, described first holds down assembly including two Whitney keies, the shifting
Two long holes setting up and down are had on motion block one, the long hole is parallel to the sliding slot, and one end of the Whitney key is solid
It connects on the support, the other end protrudes into one end far from the V-shaped groove of the long hole, the Whitney key and the long hole
Spring one is pressed between the other end.
4. a kind of improved precision forged blade dedicated pouring fixture according to claim 1, it is characterised in that: with the integral shroud
The corresponding vee-block component of boss is the second vee-block component, is provided on the blade back half module and carries on the back along the forging blade basin
The slideway of direction setting, the slideway are correspondingly arranged with the integral shroud boss, and the second vee-block component includes upper locating piece
Two, lower locating piece two and movable block two, two clearance fit of movable block are mounted in the slideway, upper two He of locating piece
The lower locating piece two is parallel to the slideway direction setting, and is respectively and fixedly installed on the movable block two, described fixed
It is enclosed the V-shaped groove between position block two and the end of the lower locating piece two, the integral shroud boss can cooperate described in insertion
In the V-shaped groove on second vee-block component.
5. a kind of improved precision forged blade dedicated pouring fixture according to claim 4, it is characterised in that: for compressing
It states holding down assembly for the second vee-block component to hold down assembly for second, described second holds down assembly including two spring bases, two institutes
It is setting up and down and be respectively and fixedly connected on the lateral surface of the blade back half module to state spring base, the movable block two far from the type chamber
One end stretch out the slideway and be equipped with defining flange, be pressed with bullet between the spring base and the lateral surface of the movable block two
Spring two.
6. a kind of improved precision forged blade dedicated pouring fixture according to claim 2, it is characterised in that: it further includes solid
Fixed board, the front end face of the blade back half module are equipped with the feather key being arranged along the forging blade intake and exhaust edge direction, the branch
Be provided on seat keyway and with the feather key clearance fit, kidney slot is also provided on the support, the support is by being threaded through
Screw one in the kidney slot is fixed on the front end face of the blade back half module；The fixed plate is arranged in the blade back half module
Above the support, the blade back half module is corresponded in the fixed plate and is provided with screw clearances hole one, the corresponding support is provided with
Screw clearances hole two and threaded hole, the fixed plate pass through the screw two that is threaded through in the screw clearances hole one and the blade back
Half module is affixed, and screw three and the support by being threaded through in the screw clearances hole two are affixed, match in the threaded hole
Conjunction is equipped with adjusting bolt, and the lower end for adjusting bolt is connected on the top surface of the support.
7. a kind of improved precision forged blade dedicated pouring fixture according to claim 2, it is characterised in that: the movable block
It is provided with groove one on one side end face of the one close blade root boss, is opened respectively on the side end face far from the blade root boss
There are two the through-hole one being connected to the groove one, also it is provided with up and down on the movable block one and is connected to the groove one
Countersunk head threaded hole one, the upper locating piece one is fixed on the movable block one by the screw four being threaded through in the through-hole one
On, the lower locating piece one is fixed on the movable block one by the screw five being threaded through in another described through-hole one, spiral shell
Nail six passes through the upper locating piece one and the lower locating piece is screwed in together in the countersunk head threaded hole one, the upper locating piece
One, by being sleeved on the screw four, the screw five and the screw between the lower locating piece one and the movable block one
Ceramic insulated column on six electrically isolates, and electrically conducts between the compression pin and the leaf basin half module.
8. a kind of improved precision forged blade dedicated pouring fixture according to claim 4, it is characterised in that: the movable block
It is provided with groove two on one side end face of the two close integral shroud boss, is opened respectively on the side end face far from the integral shroud boss
There are two the through-hole two being connected to the groove two, also it is provided with up and down on the movable block two and is connected to the groove two
Countersunk head threaded hole two, the upper locating piece two is fixed on the movable block two by the screw seven being threaded through in the through-hole two
On, the lower locating piece two is fixed on the movable block two by the screw eight being threaded through in another described through-hole two, spiral shell
Nail nine passes through the upper locating piece two and the lower locating piece two and is screwed in the countersunk head threaded hole two, the upper locating piece
Two, by being sleeved on the screw seven, the screw eight and the screw between the lower locating piece two and the movable block two
Ceramic insulated column on nine electrically isolates, and electrically conducts between the compression pin and the leaf basin half module.
9. a kind of improved precision forged blade dedicated pouring fixture according to claim 1, it is characterised in that: three types
In the positioning pin of face, one of them is correspondingly arranged with the bizet benchmark on blade back type face, remaining two respectively with the blade back
Root benchmark on type face is correspondingly arranged, type face positioning pin and the listrium positioning pin pass through respectively insulating bushing with it is described
Blade back half module electrically isolates, and electrically conducts between the compression pin and the leaf basin half module.
10. a kind of improved precision forged blade dedicated pouring fixture according to claim 1, it is characterised in that: the type face
Positioning pin, the listrium positioning pin and compression pin are with forging blade described in sphere-contact, the spherical surface and shank column
By conical surface transition between face, the contact point of type face positioning pin and the forging blade is anchor point, and compressions is sold and institute
The contact point of forging blade is stated to compress point, the anchor point is the forging with the corresponding line direction compressed between point
Normal direction of the type face of part blade at the anchor point.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910620597.2A CN110252999B (en) | 2019-07-10 | 2019-07-10 | Improved casting clamp special for precisely-forged blade |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910620597.2A CN110252999B (en) | 2019-07-10 | 2019-07-10 | Improved casting clamp special for precisely-forged blade |
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| CN110252999A true CN110252999A (en) | 2019-09-20 |
| CN110252999B CN110252999B (en) | 2023-05-02 |
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| CN201910620597.2A Active CN110252999B (en) | 2019-07-10 | 2019-07-10 | Improved casting clamp special for precisely-forged blade |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110788280A (en) * | 2019-10-31 | 2020-02-14 | 中国航发南方工业有限公司 | Blade machining reference conversion pouring device and reference conversion method |
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|---|---|
| CN110252999B (en) | 2023-05-02 |
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