CN106741054A - A kind of aircraft slide rail flexible installing car and slide rail locating mounting method - Google Patents
A kind of aircraft slide rail flexible installing car and slide rail locating mounting method Download PDFInfo
- Publication number
- CN106741054A CN106741054A CN201611156426.1A CN201611156426A CN106741054A CN 106741054 A CN106741054 A CN 106741054A CN 201611156426 A CN201611156426 A CN 201611156426A CN 106741054 A CN106741054 A CN 106741054A
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- Prior art keywords
- slide rail
- intersection point
- rail
- posture adjustment
- detent mechanism
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B3/00—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor
- B62B3/02—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor involving parts being adjustable, collapsible, attachable, detachable or convertible
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B5/00—Accessories or details specially adapted for hand carts
- B62B5/04—Braking mechanisms; Locking devices against movement
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T50/00—Aeronautics or air transport
- Y02T50/40—Weight reduction
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
- Automatic Assembly (AREA)
Abstract
This application provides a kind of aircraft slide rail flexible installing car and slide rail locating mounting method, slide rail flexible installing car contains framework, wheel, handle, guide rail slide block, elevating mechanism, hoistable platform, slide rail face posture adjustment detent mechanism, slide rail intersection point posture adjustment detent mechanism, slide rail face bracket, slide rail intersection point positioning seat, intersection point alignment pin.The slide rail that the installation car three degree of freedom can adjust, regulation stroke is sufficiently large installs car, whole installation car about 200kg, staff can just promote installation car under 15 kgfs, installing wheel group is braked at slide rail rigging position, then setting height(from bottom) according to different slide rails, gradient carry out the adjustment of different directions adjustment mechanism, realize that a slide rail installs the installation function that car is applicable multiple slide rails.
Description
Technical field
Present application relates generally to Aircraft tooling design and manufacturing technology field, particularly a kind of aircraft slide rail flexible installing
Car.
Background technology
Aircraft slide rail is the guiding mechanism of aircraft flap, and aircraft flap is the high lift device of aircraft.When taking off or
During landing, because the flying speed of aircraft is slow, wing flap is outwards launched by slide rail, and lift is improved by increasing wing area；
When aircraft enters stratosphere puts down winged, because the flying speed of aircraft is fast, wing flap is inwardly withdrawn by slide rail, by reducing wing
Area reduces resistance.During expansion and withdrawal, its aerodynamic configuration is that movement locus is determined determined by slide rail to wing flap
It is fixed, therefore, the assembling of slide rail is a kind of precision assembly, and accuracy of its assembling directly affects the exercise performance of wing flap and pneumatic
The accuracy of profile, directly affects the flying quality of the overall process such as taking off, cruise, landing.
Conventional airplane slide rail mounting process is：The slide rail installs fixture of design specialized, the fixture is rigid fixture, each portion
All to be fixedly connected, according to the difference of aircraft size, an airplane typically has 8 or 12 one slide rails to part, it is necessary to design 8 sets
Or 12 sets of slide rail installs fixtures, development cost is high, the cycle is long, floor space is big.
The content of the invention
In order to solve the above problems, be can adjust this application provides a kind of Three Degree Of Freedom, adjust the sufficiently large cunning of stroke
Rail installation car, whole installation car about 200kg, staff can just promote installation car under 15 kgfs, at slide rail rigging position
By the braking of installing wheel group, setting height(from bottom) then according to different slide rails, gradient carry out the tune of different directions adjustment mechanism
It is whole, realize that a slide rail installs the installation function that car is applicable multiple slide rails.
A kind of aircraft slide rail flexible installing car, containing framework, wheel, handle, guide rail slide block, elevating mechanism, hoistable platform,
Slide rail face posture adjustment detent mechanism, slide rail intersection point posture adjustment detent mechanism, slide rail face bracket, slide rail intersection point positioning seat, intersection point alignment pin,
Wheel is mounted in base of frame, and handle is arranged on framework side, and the left and right two ends column of framework is provided with parallel guide rail slide block；Rise
Drop platform is frame structure, and its upper surface two ends is provided with posture adjustment detent mechanism mounting surface, and centre is provided with screw mounting surface, and lifting is flat
Platform two ends are connected with guide rail slide block；The stationary end of elevating mechanism is fixed on frame mid portion, and tache motorice is connected to the silk of hoistable platform
On female mounting surface；Slide rail face posture adjustment detent mechanism and slide rail intersection point posture adjustment detent mechanism are separately fixed at the posture adjustment on hoistable platform
On detent mechanism mounting surface；Manipulating elevating mechanism can drive hoistable platform to be moved up and down along guide rail；Slide rail face bracket is fixed on cunning
Rail level posture adjustment detent mechanism upper end, support aircraft slide rail, and can be moved to Y-direction along X under the drive of slide rail face governor motion,
Aircraft slide rail is driven to reach specified location；Slide rail intersection point positioning seat is provided with intersection point location hole, and slide rail intersection point positioning seat is fixed on
On slide rail intersection point posture adjustment detent mechanism, and finger can be moved to Y-direction along X under the drive of slide rail intersection point posture adjustment detent mechanism
Positioning is put, and realizes being accurately positioned by intersection point alignment pin and aircraft slide rail intersection point pairing.
Posture adjustment detent mechanism in slide rail face includes X direction guiding rails installing matrix, X direction guiding rails sliding block, Y-direction guide rail installing matrix, Y-direction
Guide rail slide block, mounting flange, accurate lift, Y-direction guide rail installing matrix are connected to X direction guiding rails and install by X direction guiding rail sliding blocks
On matrix, mounting flange is connected in Y-direction guide rail installing matrix by Y-direction guide rail sliding block, and accurate lift is arranged on Method for Installation
Lan Shang；Slide rail intersection point posture adjustment detent mechanism, containing X ＇ direction guiding rails installing matrix, X ＇ direction guiding rails sliding block, Y ＇ direction guiding rails installing matrix,
Leading screw with handwheel, Y ＇ direction guiding rails sliding block, intersection point positioning matrix, Y ＇ direction guiding rails installing matrixes are connected to by X ＇ direction guiding rail sliding blocks
In X ＇ direction guiding rail installing matrixes, intersection point positioning matrix is connected in Y ＇ direction guiding rail installing matrixes by Y ＇ direction guiding rail sliding blocks.
Aircraft slide rail location and installation is carried out using the flexible installing car to comprise the following steps：
Slide rail installation car is moved to rigging position by 1, brakes universal wheel, dead by lock is installed
Hoistable platform is risen to correct position by 2 according to the height of installed slide rail, Manual elevator mechanism
3, according to the location status of aircraft slide rail crossing point holes, adjust the position of slide rail intersection point posture adjustment detent mechanism, until slide rail
Intersection point alignment pin on intersection point positioning seat can be inserted in aircraft slide rail intersection point
4 rotate slide rail around intersection point alignment pin, slide rail face is leaned against on the slide rail face bracket of slide rail face posture adjustment detent mechanism,
The location status of slide rail are fixed
5 drive the X of slide rail intersection point posture adjustment detent mechanism and slide rail face posture adjustment detent mechanism to the motion with Y-direction simultaneously, real
The butt junction location of existing slide rail and airframe.
Brief description of the drawings
Fig. 1 is aircraft slide rail flexible installing car composition schematic diagram.
Fig. 2 is to install bassinet structure block schematic illustration.
Fig. 3 is slide rail face posture adjustment locating platform composition schematic diagram.
Fig. 4 is slide rail intersection point posture adjustment locating platform composition schematic diagram.
Fig. 5 is hoistable platform structural representation.
Explanation is numbered in figure：1st, vehicle body frame；2nd, wheel；3rd, handle；4th, guide rail slide block；5th, elevating mechanism；6th, lift flat
Platform；7th, slide rail face posture adjustment detent mechanism；8th, slide rail intersection point posture adjustment detent mechanism；9th, slide rail face bracket；10th, intersection point alignment pin；11、
Chassis；12nd, column；13rd, diagonal brace；14th, elevating mechanism mounting surface；15th, handle mounting surface；16th, guide rails assembling face；17th, X guides ＇
Rail installing matrix；18th, X ＇ direction guiding rails；19th, Y ＇ direction guiding rails installing matrix；20th, the leading screw with handwheel；21st, Y ＇ direction guiding rails；22nd, hand over
Point location matrix；23rd, X direction guiding rails installing matrix；24th, X direction guiding rails；25th, Y-direction guide rail installing matrix；26th, Y-direction guide rail；27th, pacify
Dress flange；28th, precise lifting mechanism；29th, sliding block mounting surface；30th, posture adjustment detent mechanism mounting surface；31st, screw mounting surface；32、
Slide rail intersection point positioning seat.
Specific embodiment
Referring to accompanying drawing 1-5, a kind of aircraft slide rail flexible installing car contains framework 1, wheel 2, handle 3, guide rail slide block 4, liter
Descending mechanism 5, hoistable platform 6, slide rail face posture adjustment detent mechanism 7, slide rail intersection point posture adjustment detent mechanism 8, slide rail face bracket 9, slide rail
Intersection point positioning seat 32, intersection point alignment pin 10, wheel 2 is mounted in the bottom of framework 1, and handle 3 is arranged on the side of framework 1, the left and right of framework 1
Two ends column is provided with parallel guide rail slide block 4；Hoistable platform 6 is frame structure, and its upper surface two ends is provided with posture adjustment localization machine
Structure mounting surface 30, centre is provided with screw mounting surface 31, and the two ends of hoistable platform 6 are connected with guide rail slide block 4；Elevating mechanism 5 it is static
End is fixed on the middle part of framework 1, and tache motorice is connected on the screw mounting surface 31 of hoistable platform 6；The He of slide rail face posture adjustment detent mechanism 7
Slide rail intersection point posture adjustment detent mechanism 8 is separately fixed on the posture adjustment detent mechanism mounting surface 30 on hoistable platform 6；Manipulate lift
Structure 5 can drive hoistable platform 6 to be moved up and down along guide rail；Slide rail face bracket 9 is fixed on the upper end of slide rail face posture adjustment detent mechanism 7, holds
Support aircraft slide rail, and can be moved to Y-direction along X under the drive of slide rail face governor motion 7, drive aircraft slide rail to reach specific bit
Put；Slide rail intersection point positioning seat 32 is provided with intersection point location hole, and slide rail intersection point positioning seat 32 is fixed on slide rail intersection point posture adjustment localization machine
On structure 8, and specified location can be moved to Y-direction along X under the drive of slide rail intersection point posture adjustment detent mechanism 8, by intersection point
Alignment pin 10 is realized being accurately positioned with aircraft slide rail intersection point pairing.
Slide rail face posture adjustment detent mechanism 7, including X direction guiding rails installing matrix 23, X direction guiding rails sliding block 24, Y-direction guide rail install base
Body 25, Y-direction guide rail sliding block 26, mounting flange 27, accurate lift 28, Y-direction guide rail installing matrix 25 pass through X direction guiding rails sliding block 24
It is connected in X direction guiding rails installing matrix 23, mounting flange 27 is connected to Y-direction guide rail installing matrix 25 by Y-direction guide rail sliding block 26
On, accurate lift 28 is arranged on mounting flange 27；Slide rail intersection point posture adjustment detent mechanism 8, contains X ＇ direction guiding rail installing matrixes
17th, X ＇ direction guiding rails sliding block 18, the Y ＇ direction guiding rails installing matrix 19, leading screw 20 with handwheel, Y ＇ direction guiding rails sliding block 21, intersection point positioning base
Body 22, Y ＇ direction guiding rails installing matrix 19 is connected in X ＇ direction guiding rails installing matrix 17 by X ＇ direction guiding rails sliding block 18, intersection point positioning
Matrix 22 is connected in Y ＇ direction guiding rails installing matrix 19 by Y ＇ direction guiding rails sliding block 21.
Aircraft slide rail location and installation is carried out using aircraft slide rail flexible installing car to comprise the following steps：
Slide rail installation car is moved to rigging position by 1, brakes universal wheel, dead by lock is installed
Hoistable platform 6 is risen to correct position by 2 according to the height of installed slide rail, Manual elevator mechanism 5
3 according to the location status of aircraft slide rail crossing point holes, the position of adjustment slide rail intersection point posture adjustment detent mechanism 8, until sliding
Intersection point alignment pin 10 on rail intersection point positioning seat can be inserted in aircraft slide rail intersection point
4 rotate slide rail around intersection point alignment pin 10, slide rail face is leaned against the slide rail face bracket of slide rail face posture adjustment detent mechanism 7
On 9, the location status of slide rail are fixed
5 drive the X of slide rail intersection point posture adjustment detent mechanism 8 and slide rail face posture adjustment detent mechanism 7 to the motion with Y-direction simultaneously,
Realize the butt junction location of slide rail and airframe.
Said modules install embodiment, and wheel 2 selects 2 fixed wheels and 2 universal wheels of band brake function, 2 band systems
The universal wheel of dynamic function is arranged close to the side of handle 3, and so as to adjustment direction, 2 fixed wheels are mounted remotely from the side of handle,
In order to stabilize direction.Hoistable platform 6 is arranged on the guide rails assembling face 16 on vehicle body frame 1 by guide rail slide block 4, elevating mechanism
5 stationary end is connected on mounting surface 14, and tache motorice is connected on screw mounting surface 31, and elevating mechanism 5 must be from band machinery
The elevating mechanism of self-locking.It is flat that slide rail face posture adjustment detent mechanism 7 and slide rail intersection point posture adjustment detent mechanism 8 are arranged on lifting by bolt
On mounting surface 30 on platform 6, finally, handle 3 is arranged on mounting surface 15 with bolt.
Each component manufactures implementation method：
Referring to accompanying drawing 2, in the column design type selecting to chassis 11 and installation guide rails assembling face 16, it is to be ensured that have enough
Rigidity, in hoistable platform height and movement total travel, the deformation on column and chassis will be controlled in very low range.
Referring to accompanying drawing 3, Y-direction guide rail installing matrix 25 is connected to X direction guiding rails installing matrix 23 by X direction guiding rails sliding block 24
On, mounting flange 27 is connected in Y-direction guide rail installing matrix 25 by Y-direction guide rail sliding block 26, and precise lifting mechanism 28 is arranged on
On mounting flange 27, slide rail face bracket 9 fixes the upper end of precise lifting mechanism 28, support aircraft slide rail, and can be adjusted in slide rail face
Moved to Y-direction along X under the drive of mechanism 7, drive aircraft slide rail to reach specified location.
Referring to accompanying drawing 4, Y ＇ direction guiding rails installing matrix 19 is connected to X ＇ direction guiding rail installing matrixes by X ＇ direction guiding rails sliding block 18
On 17, intersection point positioning matrix 22 is connected in Y ＇ direction guiding rails installing matrix 19 by Y ＇ direction guiding rails sliding block 21, and upper end is equipped with intersection point
The slide rail intersection point positioning seat 32 of alignment pin 10 is connected to intersection point and positions on matrix 22 by screw connection manner, and can be adjusted in slide rail intersection point
Moved to Y-direction along X under the drive of appearance detent mechanism 8, realize being accurately positioned with aircraft slide rail intersection point pairing.
Claims (3)
1. a kind of aircraft slide rail flexible installing car, contains framework, wheel, handle, guide rail slide block, elevating mechanism, hoistable platform, cunning
Rail level posture adjustment detent mechanism, slide rail intersection point posture adjustment detent mechanism, slide rail face bracket, slide rail intersection point positioning seat, intersection point alignment pin, wheel
Son is mounted in base of frame, and handle is arranged on framework side, and the left and right two ends column of framework is provided with parallel guide rail slide block；Lifting
Platform is frame structure, and its upper surface two ends is provided with posture adjustment detent mechanism mounting surface, and centre is provided with screw mounting surface, hoistable platform
Two ends are connected with guide rail slide block；The stationary end of elevating mechanism is fixed on frame mid portion, and tache motorice is connected to the screw of hoistable platform
On mounting surface；The posture adjustment that slide rail face posture adjustment detent mechanism and slide rail intersection point posture adjustment detent mechanism are separately fixed on hoistable platform is determined
On the mechanism mounting surfaces of position；Manipulating elevating mechanism can drive hoistable platform to be moved up and down along guide rail；Slide rail face bracket is fixed on slide rail
Face posture adjustment detent mechanism upper end, support aircraft slide rail, and can be moved to Y-direction along X under the drive of slide rail face governor motion, band
Dynamic aircraft slide rail reaches specified location；Slide rail intersection point positioning seat is provided with intersection point location hole, and slide rail intersection point positioning seat is fixed on cunning
On rail intersection point posture adjustment detent mechanism, and can be specified to moving to Y-direction along X under the drive of slide rail intersection point posture adjustment detent mechanism
Position, realizes being accurately positioned by intersection point alignment pin and aircraft slide rail intersection point pairing.
2. a kind of aircraft slide rail flexible installing car according to claim 1, it is characterised in that described slide rail face posture adjustment is determined
Position mechanism, including X direction guiding rails installing matrix, X direction guiding rails sliding block, Y-direction guide rail installing matrix, Y-direction guide rail sliding block, mounting flange,
Accurate lift, Y-direction guide rail installing matrix is connected in X direction guiding rail installing matrixes by X direction guiding rail sliding blocks, and mounting flange passes through
Y-direction guide rail sliding block is connected in Y-direction guide rail installing matrix, and accurate lift is arranged on mounting flange；The posture adjustment of slide rail intersection point is determined
Position mechanism, contains X ＇ direction guiding rails installing matrix, X ＇ direction guiding rails sliding block, Y ＇ direction guiding rails installing matrix, the leading screw with handwheel, Y guides ＇
Rail sliding block, intersection point positioning matrix, Y ＇ direction guiding rails installing matrixes are connected in X ＇ direction guiding rail installing matrixes by X ＇ direction guiding rail sliding blocks,
Intersection point positioning matrix is connected in Y ＇ direction guiding rail installing matrixes by Y ＇ direction guiding rail sliding blocks.
3. the method that a kind of aircraft slide rail flexible installing car described in usage right requirement 1 carries out aircraft slide rail location and installation, bag
Include following steps：
Slide rail installation car is moved to rigging position by 3-1, brakes universal wheel, dead by lock is installed；
Hoistable platform is risen to correct position by 3-2 according to the height of installed slide rail, Manual elevator mechanism；
3-3 adjusts the position of slide rail intersection point posture adjustment detent mechanism according to the location status of aircraft slide rail crossing point holes, until slide rail is handed over
Intersection point alignment pin on point location seat can be inserted in aircraft slide rail intersection point；
3-4 rotates slide rail around intersection point alignment pin, slide rail face is leaned against on the slide rail face bracket of slide rail face posture adjustment detent mechanism, sliding
The location status of rail are fixed；
3-5 drives the X of slide rail intersection point posture adjustment detent mechanism and slide rail face posture adjustment detent mechanism to the motion with Y-direction simultaneously, realizes
The butt junction location of slide rail and airframe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611156426.1A CN106741054B (en) | 2016-12-14 | 2016-12-14 | Flexible mounting vehicle for aircraft slide rail and slide rail positioning and mounting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611156426.1A CN106741054B (en) | 2016-12-14 | 2016-12-14 | Flexible mounting vehicle for aircraft slide rail and slide rail positioning and mounting method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106741054A true CN106741054A (en) | 2017-05-31 |
| CN106741054B CN106741054B (en) | 2023-07-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611156426.1A Active CN106741054B (en) | 2016-12-14 | 2016-12-14 | Flexible mounting vehicle for aircraft slide rail and slide rail positioning and mounting method |
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| CN (1) | CN106741054B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107512402A (en) * | 2017-08-28 | 2017-12-26 | 浙江大学 | A kind of rib restocking system and restocking method |
| CN108128480A (en) * | 2017-11-28 | 2018-06-08 | 中国航发沈阳黎明航空发动机有限责任公司 | A kind of aero-engine lower-grade fuel bracket car |
| CN108928502A (en) * | 2018-07-05 | 2018-12-04 | 南京航空航天大学 | Assemble the tooling of composite material wing box and the method using tooling assembly wing box |
| CN109774963A (en) * | 2017-11-13 | 2019-05-21 | 中航通飞华南飞机工业有限公司 | Pilot Control System's installs fixture |
| CN112623260A (en) * | 2020-07-29 | 2021-04-09 | 西安飞机工业（集团）有限责任公司 | Positioning and mounting method of sleeve type structure |
| CN114954994A (en) * | 2021-02-28 | 2022-08-30 | 浙江大学 | Insert automatic gentle and agreeable butt joint system of ear formula structure |
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| CN206437022U (en) * | 2016-12-14 | 2017-08-25 | 中航飞机股份有限公司西安飞机分公司 | A kind of aircraft slide rail flexible installing car |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107512402A (en) * | 2017-08-28 | 2017-12-26 | 浙江大学 | A kind of rib restocking system and restocking method |
| CN107512402B (en) * | 2017-08-28 | 2019-10-15 | 浙江大学 | A kind of rib restocking system and restocking method |
| CN109774963A (en) * | 2017-11-13 | 2019-05-21 | 中航通飞华南飞机工业有限公司 | Pilot Control System's installs fixture |
| CN109774963B (en) * | 2017-11-13 | 2021-12-03 | 中航通飞华南飞机工业有限公司 | Pilot control system mounting fixture |
| CN108128480A (en) * | 2017-11-28 | 2018-06-08 | 中国航发沈阳黎明航空发动机有限责任公司 | A kind of aero-engine lower-grade fuel bracket car |
| CN108128480B (en) * | 2017-11-28 | 2021-03-23 | 中国航发沈阳黎明航空发动机有限责任公司 | Bracket vehicle for fuel accessories of aircraft engine |
| CN108928502A (en) * | 2018-07-05 | 2018-12-04 | 南京航空航天大学 | Assemble the tooling of composite material wing box and the method using tooling assembly wing box |
| CN108928502B (en) * | 2018-07-05 | 2021-03-19 | 南京航空航天大学 | Tool for assembling composite material wing box and method for assembling wing box by using tool |
| CN112623260A (en) * | 2020-07-29 | 2021-04-09 | 西安飞机工业（集团）有限责任公司 | Positioning and mounting method of sleeve type structure |
| CN114954994A (en) * | 2021-02-28 | 2022-08-30 | 浙江大学 | Insert automatic gentle and agreeable butt joint system of ear formula structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106741054B (en) | 2023-07-21 |
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Address after: No. 710089 in Shaanxi province Xi'an city Yanliang District West Avenue Applicant after: AVIC Xi'an Aircraft Industry Group Co.,Ltd. Address before: 1 No. 710089 Shaanxi province Xi'an city Yanliang District West Avenue Applicant before: AVIC AIRCRAFT Corp. |
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Effective date of registration: 20210617 Address after: 1 No. 710089 Shaanxi province Xi'an city Yanliang District West Avenue Applicant after: AVIC AIRCRAFT Corp. Address before: 1 No. 710089 Shaanxi province Xi'an city Yanliang District West Avenue Applicant before: XI'AN AIRCRAFT BRANCH OF XI'AN AIRCRAFT INTERNATIONAL Corp. |
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