CN107953020A - A kind of fixture for being used for multistage blisk electron beam welding - Google Patents
A kind of fixture for being used for multistage blisk electron beam welding Download PDFInfo
- Publication number
- CN107953020A CN107953020A CN201711185198.5A CN201711185198A CN107953020A CN 107953020 A CN107953020 A CN 107953020A CN 201711185198 A CN201711185198 A CN 201711185198A CN 107953020 A CN107953020 A CN 107953020A
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- China
- Prior art keywords
- blisk
- welded
- fixture
- spacer block
- disc
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K15/00—Electron-beam welding or cutting
- B23K15/0006—Electron-beam welding or cutting specially adapted for particular articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K15/00—Electron-beam welding or cutting
- B23K15/0013—Positioning or observing workpieces, e.g. with respect to the impact; Aligning, aiming or focusing electronbeams
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Welding Or Cutting Using Electron Beams (AREA)
- Connection Of Plates (AREA)
Abstract
A kind of fixture for being used for multistage blisk electron beam welding disclosed by the invention is made of base, vertical columns, lower fixed spacer block, upper fixed spacer block, cover board, clamping nut and lifting earrings, vertical columns, lower fixed spacer block, upper fixed spacer block, cover board, clamping nut are staggeredly assemblied on base with to be welded No. 1, No. 2 and No. 3 blisk from bottom to top successively, and lifting earrings is fixed on the upper surface of vertical columns.Present clip is simple in structure, it is easy for operation, reliability is high, it not only can once realize the welding of multistage blisk, improve welding production efficiency, the disc welding that can also solve to be relatively large in diameter in multistage blisk is not easy to control, the problem of inhomogeneous deformation easily brought, reduce rejection rate, reduces production cost.
Description
Technical field
The invention belongs to aero-engine rotating member to manufacture technical field of tools, and in particular to one kind is used for multistage overall leaf
The fixture of disk electron beam welding.
Background technology
Three-level blisk suffers from its dynamic balancing and static balance very stringent as the rotating member in aero-engine
Requirement, if any inhomogeneous deformation can all seriously affect part whole machine balancing caused by during the welding processing.Due to
Three-level blisk is made of No. 1 single blisk, No. 2 blisks and No. 3 blisks, is needed 1 before use
Number leaf dish and the company for completing 3 blisks in the middle part of No. 2 leaf dishes, in the middle part of No. 2 leaf dishes and No. 3 leaf dishes by electron beam welding
Connect.
When with electron beam welding, since the molten bath that one side welding is formed is uneven in the width of welding position positive and negative
It can cause part that welding deformation can occur, on the other hand in welding process, because welding current needs to increase in a certain region
Stationary value, completes the welding of position when being maintained at a certain stationary value, electric current needs to reduce in another region again thereafter
To 0, thus thermal weld stress skewness in the circumferential is may result in, the uneven of this heat input will also result in part change
Shape it is uneven.And this inhomogeneous deformation not can occur only the 1st grade of disc, on the 2nd grade of disc and 3rd level disc, also
Appear in region M-N and region P-Q that they are enclosed, see Fig. 1.In general, when the feelings for leaving allowance
Under condition, on the outside of the 1st grade of disc, the 2nd grade of disc and the 3rd level disc on the inhomogeneous deformation that occurs can also be laggard by welding
Row mechanical processing is eliminated, but its enclose formed region M-N and region P-Q after welding because of mechanical processing can
Poor up to property, when processing, has very high difficulty, and the risk of part rejection will be significantly increased.Moreover these leaf dishes are in electron beam
It is usually machined to end-state before welding, that is to say, that basic without remaining allowance.When region M-N and region P-Q is welded
When moderate finite deformation occurring after connecing, because the influence to balance will cause part to meet requirement, processing can only be just scrapped
.
It can be seen from figure 1 that the overall leaf of disc and upside 3 of No. 1 blisk of disc diameter lower of No. 2 blisks
The disc diameter of disk is big, so allows for the 2nd grade of disc indent between upper and lower two disc.If using welding during welding
When fixture is by constraining disc the inhomogeneous deformation to eliminate this welding, also can because No. 2 blisks disc this
Kind concave inward structure make it that it is difficult fully to be constrained, so as to cause the deformation in the disc and its neighbouring M-N, P-Q region will more
Add unmanageable.Although can also be constrained using common locating ring the disc of No. 2 blisks, its neighbouring area is controlled
Area deformation, but locating ring must be removed using mechanical means after electron beam welding, and mechanical means removes the mistake of locating ring
The disc surface of adjacent leaf dish is easily hurt in journey, causes disc dimension overproof part rejection.
The content of the invention
The purpose of the present invention is the deformation occurred for existing three-level blisk in electron beam welding is big, can not meet
A kind of the problem of requirement, there is provided fixture for being used for multistage blisk electron beam welding.
A kind of fixture for being used for multistage blisk electron beam welding provided by the invention, it is characterised in that the fixture be by
Base, vertical columns, lower fixed spacer block, upper fixed spacer block, cover board, clamping nut and lifting earrings composition, it is vertical columns, lower solid
Determine spacer block, upper fixed spacer block, cover board, clamping nut successively from bottom to top with to be welded No. 1, No. 2 and No. 3 blisks to interlock
It is assemblied on base, lifting earrings is fixed on the upper surface of vertical columns.
Using the base described in upper fixture as circular discs, there is a coaxial positive stop lug boss in its upper surface, and the diameter of boss is with treating
No. 1 blisk lower face disk hole internal diameter matching of welding, is provided with pin hole thereon.
Using the vertical columns described in upper fixture as a cylinder, column diameter and to be welded No. 1 and No. 3 blisks
Disc internal diameter matches, and end wall is provided with screw thread thereon, and wall horizontal evagination in bottom forms two stage steps, on first order step
Pin hole is provided with, and is connected by pin with base, second level step upper surface and No. 1 blisk disc to be welded during installation
Lower face matching contact be connected；Upper end top surface is provided with a threaded hole.
Using the lower fixed spacer block described in upper fixture as an annulus with convex platform, upper fixed spacer block is for one with lower convex platform
Annulus, internal radius are matched with vertical columns outside diameter, the disc internal diameter of the outside diameters of two boss with No. 2 blisks to be welded
Matching, when installation, are socketed on the cylinder of vertical columns successively, the lower face of lower fixed spacer block and to be welded No. 1 overall leaf
The upper surface contact of plate convergence plate is connected, and the disc of No. 2 blisks to be welded is fixed between outer two steps of two boss
In the groove of formation, and lower face of the upper surface of upper fixed spacer block just with No. 3 blisk disc to be welded contacts phase
Even.
Using the cover board described in upper fixture as a Circular Plate, the internal diameter of Circular Plate is matched with vertical columns outside diameter, Circular Plate
Outside diameter matched with No. 3 blisk disc upper surface disk hole internal diameters to be welded, cover board lateral surface and to be welded 3 during installation
The disk hole inner wall contact of number blisk upper surface is connected, and make No. 3 blisks to be welded disc be fixed on fixation every
In groove between block and cover board.
Screw thread with the clamping nut described in upper fixture by vertical columns upper end outside wall surface, can by be welded 1,
Other compressing parts of 2 and No. 3 blisks and fixture are fixed with one.
Lower convex platform with the convex platform of the lower fixed spacer block described in upper fixture and upper fixed spacer block is respectively four, each
Boss in sector, is distributed in the top of lower fixed spacer block or the lower section of upper fixed spacer block, and between each two boss is a groove,
A groove is also provided with the spacer block another side of groove correspondence position.
It is at least 4 with the pin hole opened on the base positive stop lug boss described in upper fixture and vertical columns first order step.
During due to carrying out electron beam weldering to three-level blisk using present clip, lower fixed spacer block in fixture, on
Fixed spacer block is to be alternately mounted on part on vertical columns, and is located at No. 1 blisk disc and No. 2 blisk spokes respectively
In region P-Q and No. 2 blisk disc that plate is enclosed and the region M-N that No. 3 blisk disc are enclosed, work as weldering
After the completion of connecing, directly lower fixed spacer block and upper fixed spacer block can not be removed, it is necessary to be gone using manual grinding or Vehicle Processing mode
Remove, thus for the ease of being removed easily using manual grinding or Vehicle Processing mode, the material of lower fixed spacer block and upper fixed spacer block
Elect sn-bi alloy as.This is because the intensity of one side sn-bi alloy material is relatively low, part will not be caused to touch scuffing, the opposing party
The difficulty and need skill relatively low that face is removed, and the remaining residual part after cut-out can be recycled repeatedly, to reduce cost.Folder
Having remaining part material can use 300 series stainless steels to manufacture.
Compared with prior art, the present invention have the positive effect that：
1st, due to the present invention matching degree pole that has been the structure design of the three-level blisk welded as needed
High fixture, welding effect is very good, makes circle jump and the end face run-out of the three-level blisk disc at different levels after electron beam welding
(deforming) is not more than 0.10mm, thus can not only solve interradial plate diameter in multistage blisk existing for existing welding fixture
When of different sizes, the problem of welding of the disc that is relatively large in diameter is not easy to control, the inhomogeneous deformation easily brought, and compensate for common
The defects of locating ring easily hurts adjacent leaf dish disc, cause leaf dish to be scrapped when removing, reduces rejection rate, and reduction is produced into
This.
2nd, since lower fixed spacer block in fixture provided by the invention and upper fixed spacer block are all made of the sn-bi alloy of use,
And sn-bi alloy fusing point is only 138 DEG C, thus the sn-bi alloy spacer block for cutting or removing by manual grinding or Vehicle Processing mode
It can be reused by remelting, waste of material can be reduced, reduce cost.
3rd, due to fixture provided by the invention, not only lower fixed spacer block and upper fixed spacer block are manufactured using sn-bi alloy, are avoided
The damage caused by part during use, and other components of fixture are to use 300 series stainless steels again, thus also have
Non-corrosive, without magnetic feature, need to carry out the trouble of demagnetization processing before reducing fixture cleaning amount and electron beam weldering.
4th, clamp structure provided by the invention is simple, easy for operation, reliability is high, can once realize multistage overall
The welding of leaf dish, improves welding production efficiency.
Brief description of the drawings
Fig. 1 is the front view structure diagrammatic cross-section of three-level blisk to be welded；
Fig. 2 is the front view structure diagrammatic cross-section of each component after welding fixture provided by the invention assembling；
Fig. 3 be the plan structure of lower fixed block in fixture provided by the invention, A-A to B-B direction schematic cross-sectional view；
Fig. 4 be the plan structure of upper fixed block in fixture provided by the invention, C-C to D-D to schematic cross-sectional view；
Fig. 5 is fixture provided by the invention and the front view structure after three-level blisk (only having drawn half) to be welded assembling
Schematic diagram.
In figure：Fixed under 1- bases, 2- pin holes, 3- vertical columns, 4- pins, 5- threaded holes, 6- spacer block, 7- convex platforms,
It is recessed that spacer block, 10- lower convex platforms, 11- grooves, 12- cover boards, 13- clamping nuts, 14- liftings earrings, 15- are fixed on 8- grooves, 9-
Groove, 16- grooves.
Embodiment
Embodiment is provided below in conjunction with the accompanying drawings, the present invention to be specifically described, it is necessary to it is indicated herein be with
Lower embodiment is served only for that the invention will be further described, it is impossible to limiting the scope of the invention is interpreted as, this area
Nonessential modifications and adaptations of the person skilled in the art according to made by the content and design philosophy of the invention described above, should belong to
Protection scope of the present invention.
Embodiment
A kind of fixture for being used for multistage blisk electron beam welding provided in this embodiment is according to certain h type engine h three
Come what is be designed, its welding position is equipped with two level blisk, respectively positioned at No. 1 blisk and No. 2 blisks, No. 2
Blisk and No. 3 blisk medium positions, are shown in Fig. 1, thus the fixture designed structure as shown in Fig. 2, be specifically by
Base 1, vertical columns 3, lower fixed spacer block 6, upper fixed spacer block 9, cover board 12, clamping nut 13 and lifting earrings 14 form, Gu
Determine column 3, lower fixed spacer block 6, upper fixed spacer block 9, cover board 12, clamping nut 13 successively from bottom to top with to be welded No. 1,2
Number and No. 3 blisks be staggeredly assemblied on base 1, lifting earrings 14 is fixed on the upper surface of vertical columns 3, sees Fig. 5.
Wherein base 1 is circular discs, there is a coaxial positive stop lug boss in its upper surface, the diameter of boss and to be welded No. 1 it is whole
The disk hole internal diameter matching of body leaf dish lower face, is provided with 4 pin holes 2 thereon.Vertical columns 3 are a cylinder, column diameter with it is to be welded
No. 1 connect and No. 3 blisk disc internal diameter matchings, end wall is provided with screw thread thereon, and wall horizontal evagination in bottom is formed
Two stage steps, are provided with 4 pin holes 2 on first order step, corresponding with 4 pin holes 2 on base, and pass through pin 4 and 1 phase of base
Even, second level step upper surface contacts connected, upper end with the lower face matching of No. 1 blisk disc to be welded during installation
Top surface is provided with a screw thread 5.Lower fixed spacer block 6 is an annulus with convex platform 7, and upper fixed spacer block 9 is a circle with lower convex platform 10
Ring, two internal radius are matched with 3 outside diameter of vertical columns, the disc of the outside diameters of two boss 7,9 with No. 2 blisks to be welded
Internal diameter matches, and when installation is socketed on the cylinder of vertical columns 3 successively, the lower face of lower fixed spacer block 6 with to be welded No. 1
The upper surface contact of blisk disc is connected, and the disc of No. 2 blisks to be welded is fixed on outside two boss 7,10
In the groove that two steps are formed, and lower face of the upper surface of upper fixed spacer block 9 just with No. 3 blisk disc to be welded
Contact is connected.Region M-N and region are enclosed in order to make leaf dish be easy to be located at by manual grinding or Vehicle Processing mode after welding
Lower fixed spacer block 6 and upper fixed spacer block 9 in P-Q cut or remove, the convex platform 7 of the lower fixed spacer block 6 of the present embodiment and upper
The lower convex platform 10 of fixed spacer block 9 is separately designed as four, and each boss 7,10 in sector, is distributed in the upper of lower fixed spacer block 6
The lower section of square or upper fixed spacer block 9, and between each two boss it is a groove 8,11, it is another in the spacer block of groove 8,11 correspondence positions
Also a groove 15,16 is provided with face.So spacer block at groove position is just more conducive to be cut along groove with alloy grinding head just than relatively thin
It is disconnected, lower fixed spacer block 6 and upper fixed spacer block 9 are taken out.Cover board 12 is a Circular Plate, the internal diameter of Circular Plate with outside vertical columns 3
Footpath matches, and the outside diameter of Circular Plate matches with No. 3 blisk disc upper surface disk hole internal diameters to be welded, during installation outside cover board 12
Side is contacted with No. 3 blisk upper surface disk hole inner walls to be welded to be connected, and makes the disc of No. 3 blisks to be welded
It is fixed in the groove between fixed spacer block 9 and cover board 12.The spiral shell that clamping nut 13 passes through 3 upper end outside wall surface of vertical columns
Other compressing parts of to be welded 1,2 and No. 3 blisk and fixture, can be fixed with one by line.Lifting earrings 14 passes through
The threaded hole 5 of 3 upper surface of vertical columns is connected thereon.
Claims (10)
1. a kind of fixture for being used for multistage blisk electron beam welding, it is characterised in that the fixture is by base (1), fixes and stand
Column (3), lower fixed spacer block (6), upper fixed spacer block (9), cover board (12), clamping nut (13) and lifting earrings (14) composition, Gu
Determine column (3), lower fixed spacer block (6), upper fixed spacer block (9), cover board (12), clamping nut (14) successively from bottom to top with it is to be welded
No. 1, No. 2 and No. 3 blisk connect is staggeredly assemblied on base (1), and lifting earrings (14) is fixed on the upper of vertical columns (3)
End face.
2. the fixture according to claim 1 for being used for multistage blisk electron beam welding, it is characterised in that in the fixture
The base (1) is circular discs, there are a coaxial positive stop lug boss, the diameter of boss and to be welded No. 1 overall leaf in its upper surface
The disk hole internal diameter matching of disk lower face, is provided with pin hole (2) thereon.
3. the fixture according to claim 1 or 2 for being used for multistage blisk electron beam welding, it is characterised in that the fixture
Described in vertical columns (3) be a cylinder, column diameter is matched with to be welded No. 1 and No. 3 blisk disc internal diameters,
End wall is provided with screw thread thereon, and wall horizontal evagination in bottom forms two stage steps, pin hole (2) is provided with first order step,
And be connected by pin (4) with base (1), second level step upper surface and No. 1 blisk disc to be welded during installation
Lower face matching contact is connected；Upper end top surface is provided with a threaded hole (5).
4. the fixture according to claim 1 or 2 for being used for multistage blisk electron beam welding, it is characterised in that the fixture
Described in lower fixed spacer block (6) be an annulus with convex platform (7), upper fixed spacer block (9) is a circle with lower convex platform (10)
Ring, internal radius are matched with vertical columns (3) outside diameter, the outside diameters of two boss (7,10) with No. 2 blisks to be welded
Disc internal diameter matches, and when installation is socketed on the cylinder of vertical columns (3) successively, and the lower face of lower fixed spacer block (6) is with treating
The upper surface contact of No. 1 blisk disc of welding is connected, and makes the disc of No. 2 blisks to be welded to be fixed on two convex
In the groove that platform (7,10) is formed between two steps outside, and the upper surface of upper fixed spacer block (9) just with No. 3 entirety to be welded
The lower face contact of leaf dish disc is connected.
5. the fixture according to claim 3 for being used for multistage blisk electron beam welding, it is characterised in that in the fixture
The lower fixed spacer block (6) is an annulus with convex platform (7), and upper fixed spacer block (9) is an annulus with lower convex platform (10),
Internal radius is matched with vertical columns (3) outside diameter, the disc of the outside diameters of two boss (7,10) with No. 2 blisks to be welded
Internal diameter matches, and when installation is socketed on the cylinder of vertical columns (3) successively, the lower face of lower fixed spacer block (6) with it is to be welded
The upper surface contact of No. 1 blisk disc be connected, and the disc of No. 2 blisks to be welded is fixed on two boss
In the groove that (7,10) are formed between two steps outside, and the upper surface of upper fixed spacer block (9) just with to be welded No. 3 overall leaves
The lower face contact of plate convergence plate is connected.
6. the fixture according to claim 1 or 2 for being used for multistage blisk electron beam welding, it is characterised in that the fixture
Described in cover board (12) be a Circular Plate, the internal diameter of Circular Plate is matched with vertical columns (3) outside diameter, and the outside diameter of Circular Plate is with treating
No. 3 blisk disc upper surface disk hole internal diameters matchings of welding, cover board (12) lateral surface and No. 3 entirety to be welded during installation
Disk hole inner wall contact in leaf dish upper surface is connected, and make No. 3 blisks to be welded disc be fixed on fixed spacer block (9) with
In groove between cover board (12).
7. the fixture according to claim 5 for being used for multistage blisk electron beam welding, it is characterised in that in the fixture
The cover board (12) is a Circular Plate, and the internal diameter of Circular Plate is matched with vertical columns (3) outside diameter, the outside diameter of Circular Plate with it is to be welded
No. 3 blisk disc upper surface disk hole internal diameters matchings connect, cover board (12) lateral surface and to be welded No. 3 overall leaves during installation
The disk hole inner wall contact of disk upper surface is connected, and the disc of No. 3 blisks to be welded is fixed on fixed spacer block (9) and lid
In groove between plate (12).
8. the fixture according to claim 1 or 2 for being used for multistage blisk electron beam welding, it is characterised in that the fixture
Described in clamping nut (13) by the screw thread of vertical columns (3) upper end outside wall surface, can be whole by be welded 1,2 and No. 3
Other compressing parts of body leaf dish and fixture are fixed with one.
9. the fixture according to claim 5 for being used for multistage blisk electron beam welding, it is characterised in that in the fixture
The clamping nut (13), can be by be welded 1,2 and No. 3 entirety by the screw thread of vertical columns (3) upper end outside wall surface
Other compressing parts of leaf dish and fixture are fixed with one.
10. the fixture according to claim 7 for being used for multistage blisk electron beam welding, it is characterised in that in the fixture
The clamping nut (13), can be by be welded 1,2 and No. 3 entirety by the screw thread of vertical columns (3) upper end outside wall surface
Other compressing parts of leaf dish and fixture are fixed with one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711185198.5A CN107953020B (en) | 2017-11-23 | 2017-11-23 | Clamp for electron beam welding of multistage blisk |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711185198.5A CN107953020B (en) | 2017-11-23 | 2017-11-23 | Clamp for electron beam welding of multistage blisk |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107953020A true CN107953020A (en) | 2018-04-24 |
| CN107953020B CN107953020B (en) | 2020-05-08 |
Family
ID=61961818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711185198.5A Active CN107953020B (en) | 2017-11-23 | 2017-11-23 | Clamp for electron beam welding of multistage blisk |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107953020B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110043485A (en) * | 2019-05-16 | 2019-07-23 | 江苏博联硕焊接技术有限公司 | A kind of turbo-molecular pump rotor and its diffusion welding method |
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| DE102008051933A1 (en) * | 2008-10-09 | 2010-04-15 | Mtu Aero Engines Gmbh | Holding device for holding at least one rotor blade and method for mounting a blade ring |
| EP2331288B1 (en) * | 2008-10-09 | 2015-02-25 | MTU Aero Engines GmbH | Method for producing a rotor and a rotor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110043485A (en) * | 2019-05-16 | 2019-07-23 | 江苏博联硕焊接技术有限公司 | A kind of turbo-molecular pump rotor and its diffusion welding method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107953020B (en) | 2020-05-08 |
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