CN106425256A - Bidirectional location thin-walled workpiece welding clamp - Google Patents
Bidirectional location thin-walled workpiece welding clamp Download PDFInfo
- Publication number
- CN106425256A CN106425256A CN201611046512.7A CN201611046512A CN106425256A CN 106425256 A CN106425256 A CN 106425256A CN 201611046512 A CN201611046512 A CN 201611046512A CN 106425256 A CN106425256 A CN 106425256A
- Authority
- CN
- China
- Prior art keywords
- expansion block
- body seat
- locating piece
- turnable
- cone
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- 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
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/047—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work moving work to adjust its position between soldering, welding or cutting steps
-
- 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
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
Abstract
The invention discloses a bidirectional location thin-walled workpiece welding clamp. The bidirectional location thin-walled workpiece welding clamp comprises a body base, a clamping plate, overturnable locating blocks, small shafts, gaskets, push pins, expansion blocks, guide plates, stop pins, a conical body, a cover plate, a mandrel, a nut, a ventilation pipe, a locating plug, springs I, split pins, bolts I, springs II, screws I, screws II, bolts II and screws III. By means of the bidirectional location thin-walled workpiece welding clamp, location clearance can be effectively eliminated, welding deformation can be resisted, and a welding seam zone is prevented from metal oxidation; and due to the fact that a locating face can be overturned, a support ring can be welded to a tool, and the number of tools and tool replacement time are reduced. When the bidirectional location thin-walled workpiece welding clamp is used practically, the problems that welding deformation of the support ring is large, and dimensions and angles are out of tolerance are solved; tool cost is saved; labor intensity is lowered; the qualification rate of products is increased; and production efficiency is improved.
Description
Technical field
The present invention relates to thin-wall part welding field, especially provides a kind of two-way positioning thin-wall part weld jig.
Background technology
Support ring is metal thin-wall part, is welded by inner and outer rings, and internal ring is "] of the ring wall with cone angle " type structure, outward
Ring is cone cylinder, welds after inner and outer rings grafting, and weld seam is that upper and lower twice angle welding, weld seam is long, and welding stress is big.Because of inner and outer rings
There is cone angle, the welding of upper and lower twice weld seam need to be completed using two sleeve clamps originally.Former fixture adopts end face, heart axle inner tube type structure
Positioning inner and outer rings, because of inside and outside annulus cone angle, therefore part is linear contact lay with fixture, and position gap is big, under welding stress effect,
Welding deformation is big, makes support ring size and angle overproof, and metal oxidation in weld metal zone is serious, and support ring manufacture qualification rate is extremely low.
Content of the invention
It is an object of the invention to reduce welding deformation, and the metal oxidation of control weld metal zone, fixture cost is saved, reduces fixture
Change and set-up time, improve production efficiency and conforming product rate.
The present invention provides a kind of two-way positioning thin-wall part weld jig, may be reversed using two-way positioning, i.e. locating surface, with suitable
The change for answering support ring to be cone angle after the lower weld seam of welding overturns, was needed originally two sets of frocks to complete welding job and was changed to one
Welding job is completed in set frock, reduce the fixture set-up time, reduce labor strength；Locating piece is designed to cone swelling
Formula, using cone swelling, effectively eliminates position gap, resists welding deformation, prevents weld metal zone metal oxidation.
The technical scheme is that：A kind of two-way positioning thin-wall part weld jig, including：Body seat 1, clamping plate 2, may be reversed
Locating piece 3, little axle 4, pad 5, distribution 6, expansion block 7, guide plate 8, backing pin 9, cone 10, cover plate 11, heart axle 12, nut 13, ventilation
Pipe 14, limit plug 15, spring I 16, split pin 17, bolt I 18, spring II 19, screw I 20, screw II 21, bolt II 22, spiral shell
Follow closely III 23；
The body seat 1 includes upper strata body seat 1a, lower floor body seat 1b and located at support member 1c between the two, the upper strata body
Seat 1a and lower floor body seat 1b is equipped with centre bore, and the limit plug 15 is fixed on the centre bit of lower floor body seat 1b by screw III 23
Put, 12 bottom of heart axle is positioned by limit plug 15 and is fixed on lower floor body seat 1b by bolt II 22, the heart
12 top of axle is arranged with cone 10 and nut 13, and the nut 13 is pressed on 10 upper surface of cone by cover plate 11 and screw I 20；
Multiple expansion blocks 7 for being circumferentially evenly arranged and fitting in 10 conical surface of cone are provided with outside the cone 10, described swollen
Block 7 is provided with elongated slot, is provided with backing pin 9 and spring II 19 in elongated slot, and the upper strata Qu Zuo1a top is provided with multiple is joined with expansion block 7
The guide plate 8 of conjunction, the expansion block 7 is located between guide plate 8 and upper strata body seat 1a；
7 end of the expansion block is provided with little axle 4, and 7 end of the expansion block offers groove and the radial hole for connecting with groove, described
Radial direction in the hole is provided with to be promoted 6 and is fixed on the bolt I 18 that promotes on 6, and described 4 one end of little axle is provided with the groove in groove
Spring I 16, pad 5 and the split pin 17 for coordinating with little axle 4,4 other end of little axle is fixed with turnable with the cooperation of expansion block 7
Locating piece 3,7 end of the expansion block is provided with clamping plate 2 by screw II 21, and the turnable locating piece 3 is provided with passage 3a, institute
State passage 3a and be connected with breather 14.
Preferably, the turnable locating piece 3 is secter pat.
Preferably, the quantity of the expansion block 7 and turnable locating piece 3 is 9.
Preferably, the support member 1c be specially multiple standard steel pipes being circumferentially evenly arranged, the standard steel pipe with
Upper strata body seat 1a and lower floor's body seat 1b welding.
Preferably, the clamping plate 2 includes train wheel bridge 2a and lower plate 2b.
The present invention has following beneficial effect：
The present invention effectively can eliminate position gap, resist welding deformation, prevent weld metal zone metal oxidation；And due to locating surface
May be reversed, so that support ring is welded in a set of frock and complete, reduce frock quantity and change the frock time.The present invention is answered actual
With in, it is big not only to solve support ring welding deformation, size and the overproof problem of angle, also saves frock expense, to reduce work strong
Degree, raising conforming product rate and production efficiency.
Description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the partial enlarged drawing of the present invention；
Fig. 3 is the structural representation that may be reversed locating piece in the present invention；
Fig. 4 is the structural representation of expansion block in the present invention；
In figure：1st, body seat；1a, upper strata body seat；1b, lower floor's body seat；1c, support member；2nd, clamping plate；2a, train wheel bridge；2b, under
Clamping plate；3rd, locating piece may be reversed；3a, passage；4th, little axle；5th, pad；6th, promote；7th, expansion block；8th, guide plate；9th, backing pin；10th, bore
Body；11st, cover plate；12nd, heart axle；13rd, nut；14th, breather；15th, limit plug；16th, spring I；17th, split pin；18th, bolt I；
19th, spring II；20th, screw I；21st, screw II；22nd, bolt II；23rd, screw III；
Specific embodiment
Describe the present invention with reference to the accompanying drawings and examples.
As Figure 1-4, a kind of two-way positioning thin-wall part weld jig, including：Body seat 1, clamping plate 2, turnable locating piece
3rd, little axle 4, pad 5, promote 6, expansion block 7, guide plate 8, backing pin 9, cone 10, cover plate 11, heart axle 12, nut 13, breather 14, fixed
Position plug 15, spring I 16, split pin 17, bolt I 18, spring II 19, screw I 20, screw II 21, bolt II 22, screw III 23；
First, locating piece 3 (see Fig. 3) may be reversed
Turnable locating piece 3 is secter pat, point 9 pieces of circumference uniform distributions, and radial dimension is coordinated with expansion block 7 (in Fig. 1), and inner side is recessed
Groove R570H7 is coordinated with expansion block 7R570f7, and two sides fits tightly, so as to ensure that may be reversed locating piece 3 is accurately positioned to part.
On turnable locating piece 3,44 bottom land of size carries 1.35 ° of cone angles, and this angle and 44 size of well width are joined with part
Close, for preventing part deformation in part positioning and welding process；Because cone angle is less, bad identification is estimated, in turnable positioning
One end of block 3 is provided with mark hole.
30H7 groove and 7 thickness 30f7 dimensional fits of expansion block on turnable locating piece 3, in order to ensure to repeat after locating piece upset
Positioning precision.
Turnable locating piece 3 is provided with φ 14H7 hole, for installing little axle 4, with little axle 4 be H7/n6 coordinate, little axle 4 with can
Upset locating piece 3 is connected.
Welding protection gases argon passage 3a is additionally provided with turnable locating piece 3, on each turnable locating piece 3
It is provided with 4 argon passage 3a, it is ensured that welding protection even gas distribution is connected with breather 14 in welding region, passage 3a.
2nd, distribution organization (see Fig. 2)
Little axle 4 is installed in turnable locating piece 3, little axle 4 is provided with spring I 16, I 16 back cushion piece 5 of spring and opening below
Pin 17 is fixed on little axle 4.Little axle 4 is slotted in expansion block 7 for placing spring I 16, pad 5 and split pin in expansion block 7
17, radial hole being additionally provided with expansion block 7, promotes 6 and bolt I 18 for placing, bolt I 18 is used when handle.
Bolt I 18 is promoted, is moved to the left distribution 6, promote little axle 4 to be moved to the left, little axle 4 drives and may be reversed locating piece 3
It is moved to the left, turnable locating piece 3 is separated from expansion block 7, as little axle 4 is coordinated for H7/f7 gap with expansion block 7, may be reversed positioning
Block 3 is that interference fit, turnable locating piece 3 can be rotated along 4 shaft centre line of little axle with little axle 4 with little axle 4, and manual overturning may be reversed
Locating piece 3 so as to rotate 180 ° along 4 shaft centre line of little axle.Unclamp bolt I 18, little axle 4 under I 16 spring-force driven dual of spring to
Moving right, drive turnable locating piece 3 to move right, until fitting in expansion block 7, and spring force is utilized by turnable locating piece
3 are pressed in expansion block 7.
3rd, expansion block (see Fig. 4)
Expansion block 7 is sector structure, point 9 pieces of circumference uniform distributions, and radial dimension is consistent with turnable locating piece 3, outside R570f7
Size is coordinated with 3 inboard groove R570H7 of turnable locating piece, and two sides fits tightly, so as to ensure to may be reversed locating piece to part
It is accurately positioned.
In expansion block 7, φ 14H7 hole is used for installing little axle 4, is coordinated using H7/f7 with little axle, it is ensured that repeat after locating piece upset
Positioning precision.
In expansion block, 12 hole of φ is used for installing distribution 6；2-M8 screwed hole is used for installing clamping plate 2；Middle elongated slot is used for installing gear 9
Pin and spring II 19, spring II 19 is used for the movement of expansion block 7；7 60f7 long handle of expansion block is used for coordinating with guide plate 8, makes 7 edge of expansion block
Move radially, it is ensured that part is accurately positioned；7 center of expansion block is 25 ° of conical surfaces, coordinates with cone 10, promotes under nut 13 is compressed
Expansion block is moved radially outwards, swelling part.
4th, cone expansion mechanism (see Fig. 1)
Intentionally axle 12 are installed on body seat 1, heart axle 12 is coordinated using H7/f7 with 10 endoporus of cone, and cone 10 is carried in nut 13
Dynamic lower can move up and down along heart axle 12, cone 10 is cylindrical for taper seat, with the cooperation of 7 inner conical surface of expansion block.When part being installed before welding,
Move down cone 10 by tightening nut 13, expansion block 7 is compressed, promote expansion block 7 to be displaced outwardly, swelling part；Tear open after welding
When part is unloaded, nut 13 is unclamped, expansion block 7 is moved inward under the effect of spring II 19, and expansion block 7 bounces back, detachable part.
5th, body seat (see Fig. 1)
Body seat 1 is welding structural element, point upper and lower two-layer, middle using standard steel-pipe welding.1 height of body seat is fixed by may be reversed
Position 3 radius of turn of block determines, slightly larger than its radius of turn.1 bottom of body seat is provided with limit plug 15, for being connected with welding equipment
Connect.Intentionally axle 12 are installed in centre, design for expansion mechanism.1 top of body seat is used for installing expansion block 7 and guide plate 8, and this fixture is set altogether
There are 9 expansion blocks 7, each expansion block 7 joins a guide plate 8, circumference uniform distribution.
6th, repetitive positioning accuracy ensuring method after locating surface upset
Two sides weld seam is realized using a fixture welding according to locating surface upset, it is necessary that weight after locating surface upset
Multiple positioning precision, is that this adopts with the following method in this jig Design：
30H7 groove in turnable locating piece 3, is coordinated with 7 thickness 30f7 of expansion block, it is ensured that before and after upset, and it is fixed to may be reversed
Position block 3 is along the position of Z-direction.
In turnable locating piece 3,30H7 groove bottom land is to coordinate R570H7, with 7 outside dimension R570f7 of expansion block, and two sides exists
Spring I 16 is fitted tightly under acting on, it is ensured that before and after upset, locating piece radial dimension.
φ 14H7 hole is provided with turnable locating piece 3, for little axle 4 is installed, adopts with little axle 4 and make H7/n6 cooperation, be linked to be one
Body, little axle 4 is coordinated using H7/f7 with expansion block 7, it is ensured that before and after upset, along the circumferential direction position is constant for turnable locating piece 3.
7th, part mounting method and fixture course of action (see Fig. 1)
The installation of support ring internal ring is first carried out, and on the turnable locating piece 3 of gauging fixture, mark hole is consistent upward, by train wheel bridge
2a rotates inwards, and lower plate 2b rotation is outside；The rotation band movable cone 10 of nut 13 is up, and expansion block 7 is in the presence of spring II 19
Along the conical surface rollback of cone 10, until can load internal ring, then nut 13 is reversely rotated, by pre- for internal ring swelling；Load support ring
Outer shroud, will be outside for train wheel bridge 2a rotation, so that outer shroud is between train wheel bridge 2a and lower plate 2b；Nut 13 is rotated again, will be interior
Outer shroud is while swelling；Argon is passed through by breather 14, after argon is full of interior ring cavity, carries out positioning welding；Revolution train wheel bridge 2a
Rotation inwards, is supported the welding of ring small end weld seam, and after being all soldered cooling, rotation nut 13 makes 7 rollback of expansion block, unloads and is welded
Part；Bolt I 18 is promoted, is driven and 6, little axle 4 is promoted, make the spigot surface that may be reversed locating piece 3 depart from expansion block 7, manual overturning
7 binding face of expansion block is retreated to next time in the effect of I 16 power of spring after 180 °, check that on turnable locating piece 3, mark hole is towards consistent court
Under, the contrary new fixture of formation locating surface cone angle, repeat the above steps, it is supported the big end weld seam welding of ring.
Above-described embodiment technology design only to illustrate the invention and feature, its object is to allow person skilled in the art
Scholar will appreciate that present disclosure and implement according to this, can not be limited the scope of the invention with this.All according to the present invention
Equivalence changes or modification that spirit is made, should all be included within the scope of the present invention.
Claims (5)
1. a kind of two-way positioning thin-wall part weld jig, it is characterised in that include：Body seat (1), clamping plate (2), turnable locating piece
(3), little axle (4), pad (5), distribution (6), expansion block (7), guide plate (8), backing pin (9), cone (10), cover plate (11), heart axle
(12), nut (13), breather (14), limit plug (15), spring I (16), split pin (17), bolt I (18), spring II
(19), screw I (20), screw II (21), bolt II (22), screw III (23)；
Described body seat (1) includes upper strata body seat (1a), lower floor's body seat (1b) and located at support member (1c) between the two, described on
Layer body seat (1a) and lower floor body seat (1b) are equipped with centre bore, and described limit plug (15) are fixed on lower floor's body by screw III (23)
The center of seat (1b), heart axle (12) bottom is positioned by limit plug (15) and is fixed on by bolt II (22)
In lower floor's body seat (1b), heart axle (12) top is arranged with cone (10) and nut (13), and described nut (13) pass through cover plate
And screw I (20) is pressed on cone (10) upper surface (11)；
Multiple expansion blocks (7) for being circumferentially evenly arranged and fitting in cone (10) conical surface are provided with outside described cone (10), described
Expansion block (7) is provided with elongated slot, is provided with backing pin (9) and spring II (19) in elongated slot, and upper strata body seat (1a) top is provided with many
The individual guide plate (8) for coordinating with expansion block (7), described expansion block (7) are located between guide plate (8) and upper strata body seat (1a)；
Expansion block (7) end is provided with little axle (4), and expansion block (7) end offers groove and the radial hole for connecting with groove, institute
The bolt I (18) that radial direction in the hole is provided with distribution (6) and is fixed in distribution (6) is stated, described little axle (4) one end is located in groove, institute
State and spring I (16), pad (5) and the split pin (17) for coordinating with little axle (4) in groove, is provided with, little axle (4) other end is fixed
There is the turnable locating piece (3) for coordinating with expansion block (7), expansion block (7) end is provided with clamping plate (2) by screw II (21),
Turnable locating piece (3) are provided with passage (3a), and passage (3a) is connected with breather (14).
2. according to the two-way positioning thin-wall part weld jig of one kind described in claim 1, it is characterised in that the turnable positioning
Block (3) is secter pat.
3. according to the two-way positioning thin-wall part weld jig of one kind described in claim 1, it is characterised in that expansion block (7) and
The quantity of turnable locating piece (3) is 9.
4. according to the two-way positioning thin-wall part weld jig of one kind described in claim 1, it is characterised in that support member (1c)
Specially multiple standard steel pipes being circumferentially evenly arranged, the standard steel pipe and upper strata body seat (1a) and lower floor's body seat (1b) weldering
Connect.
5. according to the two-way positioning thin-wall part weld jig of one kind described in claim 1, it is characterised in that described clamping plate (2) wrap
Include train wheel bridge (2a) and lower plate (2b).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611046512.7A CN106425256B (en) | 2016-11-23 | 2016-11-23 | A kind of two-way positioning thin-wall part weld jig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611046512.7A CN106425256B (en) | 2016-11-23 | 2016-11-23 | A kind of two-way positioning thin-wall part weld jig |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106425256A true CN106425256A (en) | 2017-02-22 |
| CN106425256B CN106425256B (en) | 2018-01-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611046512.7A Active CN106425256B (en) | 2016-11-23 | 2016-11-23 | A kind of two-way positioning thin-wall part weld jig |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107009165A (en) * | 2017-04-06 | 2017-08-04 | 武汉船用机械有限责任公司 | Radome fairing clamping tooling |
| CN109352119A (en) * | 2018-11-23 | 2019-02-19 | 中国航发沈阳黎明航空发动机有限责任公司 | It is a kind of to improve certain clamp structure for obturaging ring assemblies class part soldering clamping precision |
| CN109604380A (en) * | 2018-11-23 | 2019-04-12 | 中国航发沈阳黎明航空发动机有限责任公司 | A kind of process unit for thin-walled twin-layer structure thermal recalibration |
| CN109848629A (en) * | 2019-04-12 | 2019-06-07 | 中国航发常州兰翔机械有限责任公司 | A kind of evaporation tubular type burner inner liner circumferential weld automatic welding fixture |
| CN110814551A (en) * | 2019-12-18 | 2020-02-21 | 江南工业集团有限公司 | Thin-wall shell multidirectional self-correcting laser welding auxiliary device and using method |
| CN111451701A (en) * | 2020-06-10 | 2020-07-28 | 贵州红湖发动机零部件有限公司 | Seamless tensioning welding fixture for welding conical cylinder |
| CN112935603A (en) * | 2021-03-31 | 2021-06-11 | 无锡海核装备科技有限公司 | Tool and method for welding porous base plate on cylinder |
| CN114769998A (en) * | 2022-04-29 | 2022-07-22 | 沈阳飞机工业（集团）有限公司 | Machining method and device for improving welding quality of titanium alloy part of airplane |
| CN117020367A (en) * | 2023-10-08 | 2023-11-10 | 中国航发沈阳黎明航空发动机有限责任公司 | Welding device and welding method for titanium alloy supporting ring of engine tail nozzle |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107009165A (en) * | 2017-04-06 | 2017-08-04 | 武汉船用机械有限责任公司 | Radome fairing clamping tooling |
| CN109352119A (en) * | 2018-11-23 | 2019-02-19 | 中国航发沈阳黎明航空发动机有限责任公司 | It is a kind of to improve certain clamp structure for obturaging ring assemblies class part soldering clamping precision |
| CN109604380A (en) * | 2018-11-23 | 2019-04-12 | 中国航发沈阳黎明航空发动机有限责任公司 | A kind of process unit for thin-walled twin-layer structure thermal recalibration |
| CN112846633A (en) * | 2019-04-12 | 2021-05-28 | 中国航发常州兰翔机械有限责任公司 | Evaporation tube type flame tube circumferential weld automatic welding fixture capable of avoiding welding deformation |
| CN109848629A (en) * | 2019-04-12 | 2019-06-07 | 中国航发常州兰翔机械有限责任公司 | A kind of evaporation tubular type burner inner liner circumferential weld automatic welding fixture |
| CN112935661A (en) * | 2019-04-12 | 2021-06-11 | 中国航发常州兰翔机械有限责任公司 | Working method of clamp for automatically welding circumferential weld of evaporating pipe type flame tube |
| CN110814551A (en) * | 2019-12-18 | 2020-02-21 | 江南工业集团有限公司 | Thin-wall shell multidirectional self-correcting laser welding auxiliary device and using method |
| CN110814551B (en) * | 2019-12-18 | 2024-04-16 | 江南工业集团有限公司 | Multidirectional self-correction laser welding auxiliary device for thin-wall shell and application method |
| CN111451701A (en) * | 2020-06-10 | 2020-07-28 | 贵州红湖发动机零部件有限公司 | Seamless tensioning welding fixture for welding conical cylinder |
| CN111451701B (en) * | 2020-06-10 | 2022-05-03 | 贵州红湖发动机零部件有限公司 | Seamless tensioning welding fixture for welding conical cylinder |
| CN112935603A (en) * | 2021-03-31 | 2021-06-11 | 无锡海核装备科技有限公司 | Tool and method for welding porous base plate on cylinder |
| CN112935603B (en) * | 2021-03-31 | 2024-04-09 | 无锡海核装备科技有限公司 | Tool and method for welding porous backing plate on cylinder |
| CN114769998A (en) * | 2022-04-29 | 2022-07-22 | 沈阳飞机工业（集团）有限公司 | Machining method and device for improving welding quality of titanium alloy part of airplane |
| CN114769998B (en) * | 2022-04-29 | 2023-06-27 | 沈阳飞机工业（集团）有限公司 | Processing method and device for improving welding quality of aircraft titanium alloy parts |
| CN117020367A (en) * | 2023-10-08 | 2023-11-10 | 中国航发沈阳黎明航空发动机有限责任公司 | Welding device and welding method for titanium alloy supporting ring of engine tail nozzle |
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Address after: 110043 Dong TA street, Dadong District, Shenyang, Liaoning Province, No. 6 Patentee after: Chinese Hangfa Shenyang Liming Aero engine limited liability company Address before: 110043 Dong TA street, Dadong District, Shenyang, Liaoning Province, No. 6 Patentee before: Liming Aeroplane Engine (Group) Co., Ltd., Shenyang City |