CN209664667U - A kind of fitting device applied to electric car aluminum alloy battery pallet - Google Patents
A kind of fitting device applied to electric car aluminum alloy battery pallet Download PDFInfo
- Publication number
- CN209664667U CN209664667U CN201920005373.6U CN201920005373U CN209664667U CN 209664667 U CN209664667 U CN 209664667U CN 201920005373 U CN201920005373 U CN 201920005373U CN 209664667 U CN209664667 U CN 209664667U
- Authority
- CN
- China
- Prior art keywords
- locating piece
- air cylinder
- workpiece
- aluminum alloy
- plate
- 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.)
- Active
Links
- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 32
- 230000007246 mechanism Effects 0.000 claims abstract description 27
- 238000003754 machining Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 7
- 238000005516 engineering process Methods 0.000 abstract description 5
- 230000004807 localization Effects 0.000 abstract description 3
- 238000005457 optimization Methods 0.000 abstract description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 10
- 238000003466 welding Methods 0.000 description 10
- 229910052782 aluminium Inorganic materials 0.000 description 9
- 239000004411 aluminium Substances 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229910000851 Alloy steel Inorganic materials 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 2
- 239000010962 carbon steel Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229910000963 austenitic stainless steel Inorganic materials 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
Landscapes
- Feeding Of Workpieces (AREA)
Abstract
The utility model relates to field of machining technology.A kind of fitting device applied to electric car aluminum alloy battery pallet, including braced frame, braced frame include bottom plate and left plate and right side plate at left and right sides of bottom plate；It further include positioning mechanism；It further include a press mechanism, press mechanism includes four and rotatably compresses cylinder, and four rotatably compress in cylinder two and rotatably compress cylinder the left of left plate is arranged in front and back respectively, other two rotatably compresses cylinder, and the right of right side plate is arranged in front and back respectively；It further include one for the workpiece jacking mechanism that all around two dimensions are held out against, jacking mechanism includes two air cylinder groups, and two air cylinder groups are respectively the second air cylinder group held out against for being used for the first air cylinder group held out against on workpiece front-rear direction with being used on workpiece left and right directions.This patent convenient for guaranteeing the three-dimensional localization fixed effect to aluminum alloy battery pallet, and then controls deformation quantity, guarantees machining accuracy by optimization fitting device.
Description
Technical field
The utility model relates to field of machining technology, and in particular to the fitting device of battery tray.
Background technique
Nowadays worldwide energy problem becomes increasingly severe, so that mitigating automotive dead weight, reducing oil consumption into major vapour
The distance of the key that vehicle factory improves the competitiveness, the every reduction 50kg of vehicle weight, every liter of fuel oil traveling can increase 2m automobile
Weight is every to mitigate 1%, and fuel consumption declines 0.6%-1%.Data show that replacing traditional steel construction with aluminium alloy structure, can make
Car mass mitigates 30%-40%, and manufacture engine can reduce 30%, and manufacture wheel can reduce 50%, and aluminium has density small, resistance to
The features such as corrosion is good, and the plasticity of aluminium alloy is excellent, casting, forging, Sheet Metal Forming Technology are applicable in, from production cost part quality, material
It several aspects such as utilizes to compare, is automotive light weight technology and environmental protection, energy conservation, speed-raising and the efficient important channel of transport using aluminium alloy
One of.
But simultaneously aluminium and aluminium alloy MG welding there are the problem of: the thermal conductivity and specific heat capacity of aluminium and aluminium alloy are carbon steel
With low-alloy steel more than twice, the thermal conductivity of aluminium is more than ten times of austenitic stainless steel, in the welding process, a large amount of heat energy
When being rapidly transmitted to intrinsic silicon, thus welding aluminium and aluminium alloy, for energy in addition to being consumed in and melting metal bath, there are also more
Energy consumption inside metallic matrix.Cause heat input in welding process excessive, the decline of heat affected area performance.Aluminium and aluminium close
Swollen twice for taking coefficient and being about carbon steel and low-alloy steel of line of gold.The density of liquid fine aluminium: being 0002.31 at 700 DEG C.Often
It is 2.7/cm under temperature, cubical contraction when solidified aluminum, welding deformation and welding interior stress increase, and aluminium and aluminum alloy piping welding molten bath are solidifying
Gu when be easy to produce in shrinkage cavity, fire check and higher welding and answer.
Currently in order to the demand of lighting, has planned to substitute steel using aluminium alloy in the battery tray design of electric car
Material, but it is easier to the problem of deformation occurs due to comparing Steel material during aluminum alloy piping welding, it is existing for Steel material electricity
The tooling of pond pallet is not particularly suited in the processing of aluminum alloy battery pallet the demand of the anti-deformation of (welding sequence), to workpiece
Fixed effect is bad, therefore needs one kind convenient for machining at present, and reduces influence of the deformation to machining accuracy, raising part size
The fixing tool of the aluminum alloy battery pallet of machining accuracy.
Utility model content
In view of the problems of the existing technology, the utility model provides a kind of applied to electric car aluminum alloy battery pallet
Fitting device, to solve the problems, such as that existing tooling fixed effect is bad.
The technical solution of the utility model is: a kind of fitting device applied to electric car aluminum alloy battery pallet, packet
Include the braced frame for being used to support aluminum alloy battery pallet, which is characterized in that the braced frame include bottom plate and be located at bottom
Left plate and right side plate at left and right sides of plate；
It further include one for the workpiece positioning mechanism that all around two dimensions are positioned, the positioning mechanism to include
First locating piece, the second locating piece and third locating piece, first locating piece and the second locating piece left and right settings, and
The upper side of the left plate and the upper side of right side plate are separately positioned on, before first locating piece and second locating piece
After be arranged, and be separately positioned on the rear and front end of the upper side of the left plate；
It further include a press mechanism, the press mechanism includes four and rotatably compresses cylinder, and four rotatably compress in cylinder
Two rotatably compress cylinder the left of the left plate are arranged in front and back respectively, other two rotatably compresses cylinder, and front and back is set respectively
It sets in the right of right side plate；
It further include one for the workpiece jacking mechanism that all around two dimensions are held out against, the jacking mechanism to include
Two air cylinder groups, two air cylinder groups be respectively the first air cylinder group held out against that is used on workpiece front-rear direction with for workpiece or so
The second air cylinder group held out against on direction, same air cylinder group is all provided with there are two straight line cylinder, and two straight lines of same air cylinder group
The central axis of the piston rod of cylinder is parallel to each other, the center of the piston rod of straight line cylinder in the first air cylinder group and the second air cylinder group
Axis is mutually perpendicular to；
Two straight line cylinders of first air cylinder group are mounted on the right side plate, and two of second air cylinder group are straight
Line cylinder is separately mounted on the left plate and the right side plate.
This patent is by optimization fitting device, convenient for guaranteeing the three-dimensional localization fixed effect to aluminum alloy battery pallet, into
And deformation quantity is controlled, guarantee machining accuracy.The positioning that two dimensions all around are realized by three locating pieces, passes through pushing
Mechanism realizes being fixedly clamped in short transverse, realizes being fixedly clamped for all around two dimensions by jacking mechanism.
By being not provided with front side board and right side plate, front and rear sides face open type picks and places workpiece convenient for automated machine clamp hand
Product.
It is further preferred that first locating piece includes the first work piece interface and the second work for contact workpiece
Part contact surface；
First work piece interface is connected with the second workpiece contact surface；
First work piece interface is flushed with the rear surface of second locating piece；
The second workpiece contact surface is flushed with the right surface of the third locating piece.
It is easy to implement the positioning to workpiece all around two dimensions.And two air cylinder groups is combined to realize all around two
The clamping of dimension.
It is further preferred that first locating piece and second locating piece two with second air cylinder group respectively
Straight line cylinder is oppositely arranged；
First locating piece and the third locating piece are opposite with two straight line cylinders of first air cylinder group respectively
Setting.
Convenient for guaranteeing the clamping effect of two dimensions all around.
It is further preferred that offering through-hole on the left plate and the right side plate.Through-hole is convenient for post-production tool
Workpiece is processed from through-hole.The number and orientation of through-hole are configured according to region to be processed.
It is further preferred that the bottom plate is a hollow out bottom plate, through-hole is offered on the bottom plate.
It is further preferred that the bottom plate include two front and back be arranged cross bar, the left and right ends of two cross bars respectively with
The left plate and right side plate are detachably connected；
The bottom plate further includes at least three connecting rods being arranged from left to right, the rear and front end of the connecting rod respectively with
Two cross bars are detachably connected.
It is easy to implement the hollow out of bottom plate.
The left and right ends of two cross bars are detachably connected by pin and the left plate and right side plate；
The rear and front end of the connecting rod is detachably connected by pin and two cross bars.
It is further preferred that it is all rotatably compress cylinder contact workpiece side and stick have a rubber pad；
All straight line cylinder contact workpiece sides, which are sticked, rubber pad.
Avoid the abrasion to workpiece.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the utility model；
Fig. 2 is a kind of top view of the utility model.
In figure: 3 be bottom plate, and 4 be workpiece, and 11 be the first locating piece, and 12 be the second locating piece, and 13 be third locating piece, 14
It is right side plate for left plate, 15,21 rotatably compress cylinder for first, and 22 rotatably compress cylinder for second, and 23 be first straight line gas
Cylinder, 24 be second straight line cylinder, and 25 rotatably compress cylinder for third, and 26 rotatably compress cylinder for the 4th, and 27 be third straight line gas
Cylinder, 28 be the 4th straight line cylinder.
Specific embodiment
The utility model is described further with reference to the accompanying drawing.
Referring to Fig. 1 and Fig. 2, a kind of fitting device applied to electric car aluminum alloy battery pallet, including for branch
Support the braced frame of aluminum alloy battery pallet, braced frame include bottom plate 3 and positioned at the left and right sides of bottom plate 3 left plate 14 with
Right side plate 15.
It further include one for the positioning mechanism that all around two dimensions are positioned of workpiece 4, positioning mechanism includes the
A positioning block 11, the second locating piece 12 and third locating piece 13,12 left and right settings of the first locating piece 11 and the second locating piece, and
It is separately positioned on the upper side of left plate 14 and the upper side of right side plate 15, is set before and after the first locating piece 11 and the second locating piece 12
It sets, and is separately positioned on the rear and front end of the upper side of left plate 14.
It further include a press mechanism, press mechanism includes four and rotatably compresses cylinder, and four rotatably compress in cylinder two
Cylinder (first rotatably compresses cylinder 21 and second rotatably compress cylinder 22) is rotatably compressed to be arranged in left plate 14 front and back respectively
Left, other two rotatably compress cylinder (third rotatably compresses cylinder 25 and the 4th and rotatably compresses cylinder 26) respectively front and back
The right of right side plate 15 is set.
It further include one for the jacking mechanism that all around two dimensions are held out against of workpiece 4, jacking mechanism to include two
A air cylinder group, the first air cylinder group held out against and be used for workpiece right and left that two air cylinder groups are respectively used on workpiece front-rear direction
Upward the second air cylinder group held out against, same air cylinder group is all provided with there are two straight line cylinder, and two straight line gas of same air cylinder group
The central axis of the piston rod of cylinder is parallel to each other, the central axis of the piston rod of straight line cylinder in the first air cylinder group and the second air cylinder group
Line is mutually perpendicular to；Two straight line cylinders (second straight line cylinder 24 and third straight line cylinder 27) of first air cylinder group are mounted on the right side
On side plate 15, two straight line cylinders (first straight line cylinder 23 and the 4th straight line cylinder 28) of the second air cylinder group are separately mounted to
On left plate 14 and right side plate 15.
This patent is by optimization fitting device, convenient for guaranteeing the three-dimensional localization fixed effect to aluminum alloy battery pallet, into
And deformation quantity is controlled, guarantee machining accuracy.The positioning that two dimensions all around are realized by three locating pieces, passes through pushing
Mechanism realizes being fixedly clamped in short transverse, realizes being fixedly clamped for all around two dimensions by jacking mechanism.Pass through
It is not provided with front side board and right side plate 15, front and rear sides face open type picks and places workpiece product convenient for automated machine clamp hand.
First locating piece 11 includes the first work piece interface and second workpiece contact surface for contact workpiece 4；First
Work piece interface is connected with second workpiece contact surface；First work piece interface is flushed with the rear surface of the second locating piece 12；Second
Work piece interface is flushed with the right surface of third locating piece 13.It is easy to implement the positioning to workpiece all around two dimensions.And
The clamping of two dimensions all around is realized in conjunction with two air cylinder groups.First locating piece 11 and the second locating piece 12 are respectively with second
Two straight line cylinders of air cylinder group are oppositely arranged；First locating piece 11 and third locating piece 13 two with the first air cylinder group respectively
Straight line cylinder is oppositely arranged.Convenient for guaranteeing the clamping effect of two dimensions all around.
Through-hole is offered on left plate 14 and right side plate 15.Through-hole adds workpiece from through-hole convenient for post-production tool
Work.The number and orientation of through-hole are configured according to region to be processed.
Bottom plate 3 is a hollow out bottom plate, offers through-hole on bottom plate 3.The cross bar that bottom plate 3 is arranged including two front and backs, two
The left and right ends of cross bar are detachably connected with left plate 14 and right side plate 15 respectively；Bottom plate 3 further includes at least three from left to right
The connecting rod of setting, the rear and front end of connecting rod are detachably connected with two cross bars respectively.It is easy to implement the hollow out of bottom plate 3.Two
The left and right ends of a cross bar are detachably connected by pin with left plate 14 and right side plate 15；The rear and front end of connecting rod passes through pin
Nail is detachably connected with two cross bars.
It is all rotatably compress cylinder contact workpiece side and stick have a rubber pad；All straight line cylinder contact workpiece sides are glutinous
With rubber pad.Avoid the abrasion to workpiece.
Alternatively, all cylinder contact workpiece sides that rotatably compresses slidably connect an aeroge cushion block, aeroge cushion block is remote
Sticking from the side for rotatably compressing cylinder has a rubber pad.All straight line cylinder contact workpiece Slideslips are connected with an airsetting rubber mat
Block, aeroge cushion block sticks far from the side of straight line cylinder a rubber pad.Avoid the abrasion to workpiece.
Above are merely preferred embodiments of the utility model, it is noted that for the ordinary skill people of the art
For member, without departing from the principle of this utility model, several improvements and modifications can also be made, these improvements and modifications
Also it should be regarded as the protection scope of the utility model.
Claims (8)
1. a kind of fitting device applied to electric car aluminum alloy battery pallet, including being used to support aluminum alloy battery pallet
Braced frame, which is characterized in that the braced frame includes bottom plate and left plate and right side plate at left and right sides of bottom plate；
It further include one for the workpiece positioning mechanism that all around two dimensions are positioned, the positioning mechanism to include first
Locating piece, the second locating piece and third locating piece, first locating piece and the second locating piece left and right settings, and respectively
The upper side of the left plate and the upper side of right side plate are set, set before and after first locating piece and second locating piece
It sets, and is separately positioned on the rear and front end of the upper side of the left plate；
It further include a press mechanism, the press mechanism includes four and rotatably compresses cylinder, and four rotatably compress in cylinder two
The left of the left plate is set before and after rotatably compressing cylinder respectively, other two rotatably compresses cylinder, and front and back setting exists respectively
The right of right side plate；
It further include one for the workpiece jacking mechanism that all around two dimensions are held out against, the jacking mechanism to include two
Air cylinder group, the first air cylinder group held out against and be used for workpiece left and right directions that two air cylinder groups are respectively used on workpiece front-rear direction
On the second air cylinder group held out against, same air cylinder group is all provided with there are two straight line cylinder, and two straight line cylinders of same air cylinder group
The central axis of piston rod be parallel to each other, the central axis of the piston rod of straight line cylinder in the first air cylinder group and the second air cylinder group
It is mutually perpendicular to；
Two straight line cylinders of first air cylinder group are mounted on the right side plate, two straight line gas of second air cylinder group
Cylinder is separately mounted on the left plate and the right side plate.
2. a kind of fitting device applied to electric car aluminum alloy battery pallet according to claim 1, feature exist
In: first locating piece includes the first work piece interface and second workpiece contact surface for contact workpiece；
First work piece interface is connected with the second workpiece contact surface；
First work piece interface is flushed with the rear surface of second locating piece；
The second workpiece contact surface is flushed with the right surface of the third locating piece.
3. a kind of fitting device applied to electric car aluminum alloy battery pallet according to claim 2, feature exist
In: first locating piece and second locating piece are oppositely arranged with two straight line cylinders of second air cylinder group respectively；
First locating piece and the third locating piece are oppositely arranged with two straight line cylinders of first air cylinder group respectively.
4. a kind of fitting device applied to electric car aluminum alloy battery pallet according to claim 1, feature exist
In: through-hole is offered on the left plate and the right side plate.
5. a kind of fitting device applied to electric car aluminum alloy battery pallet according to claim 1, feature exist
In: the bottom plate is a hollow out bottom plate, offers through-hole on the bottom plate.
6. a kind of fitting device applied to electric car aluminum alloy battery pallet according to claim 5, feature exist
In: the bottom plate include the cross bar that two front and backs are arranged, the left and right ends of two cross bars respectively with the left plate and right side plate
It is detachably connected；
The bottom plate further includes at least three connecting rods being arranged from left to right, the rear and front end of the connecting rod respectively with two
Cross bar is detachably connected.
7. a kind of fitting device applied to electric car aluminum alloy battery pallet according to claim 6, feature exist
In: the left and right ends of two cross bars are detachably connected by pin and the left plate and right side plate；
The rear and front end of the connecting rod is detachably connected by pin and two cross bars.
8. a kind of fitting device applied to electric car aluminum alloy battery pallet according to claim 1, feature exist
In: it is all rotatably compress cylinder contact workpiece side and stick have a rubber pad；
All straight line cylinder contact workpiece sides, which are sticked, rubber pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920005373.6U CN209664667U (en) | 2019-01-03 | 2019-01-03 | A kind of fitting device applied to electric car aluminum alloy battery pallet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920005373.6U CN209664667U (en) | 2019-01-03 | 2019-01-03 | A kind of fitting device applied to electric car aluminum alloy battery pallet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209664667U true CN209664667U (en) | 2019-11-22 |
Family
ID=68564681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920005373.6U Active CN209664667U (en) | 2019-01-03 | 2019-01-03 | A kind of fitting device applied to electric car aluminum alloy battery pallet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209664667U (en) |
-
2019
- 2019-01-03 CN CN201920005373.6U patent/CN209664667U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2010102578A1 (en) | Plate curved surface forming device for square pressure head adjustable mold | |
| CN103692166B (en) | The preparation method of the thick alloy-steel plate of a kind of spy | |
| CN201012426Y (en) | Butt welding machine | |
| CN105274457A (en) | 3D super-plasticizing treatment method and superplasticity precision shaping method for magnesium alloy | |
| CN206455038U (en) | Punch press shock absorber | |
| CN104550403A (en) | Device and process for realizing high-temperature barometric bulging of hollow metal component | |
| CN103008869A (en) | Electron beam pressurizing connection method for aluminum alloy and particle-reinforced aluminum matrix composite material | |
| CN209664667U (en) | A kind of fitting device applied to electric car aluminum alloy battery pallet | |
| CN209578577U (en) | A kind of plate weld fixture apparatus | |
| CN110788217A (en) | Frame plate type die for hot stretch bending of section bar | |
| CN113619673B (en) | Magnesium alloy steering wheel framework steel bar embedding cold bending locking structure and method | |
| CN213646923U (en) | End face polishing device for aluminum die casting machining | |
| CN204546052U (en) | A kind of fixture for the processing of small end of connecting rod aperture | |
| CN204470363U (en) | A kind of device realizing hollow metal component high-temperature barometric pressure load | |
| CN211943498U (en) | Novel aluminum full-frame type rear auxiliary frame | |
| CN110920125A (en) | Heat treatment flattening equipment for scraped car shells | |
| CN200988179Y (en) | Bending beam motorcycle general assembling clamp | |
| CN211972404U (en) | Aluminum alloy casting heat treatment device with automatic feeding structure | |
| CN217202883U (en) | Combined composite cushion block for improving heating quality of steel billet | |
| CN221185204U (en) | Automatic welding device for flexible railway vehicle roof | |
| CN211331983U (en) | Spacing hold-down mechanism of welding jig | |
| CN115846851B (en) | Method for welding thin bottom plate of blade type power battery tray | |
| CN220638976U (en) | Composite extrusion device | |
| CN212413013U (en) | Positioning mechanism for processing new energy automobile motor casing end cover | |
| CN212329449U (en) | Magnesium alloy rod processing die |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 2058 Huqingping Road, Qingpu District, Shanghai, 201702 Patentee after: Shanghai Yousheng Aluminum Co.,Ltd. Address before: 2058 Huqingping Road, Qingpu District, Shanghai, 201702 Patentee before: SHANGHAI UNISON ALUMINUM PRODUCTS Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221130 Address after: Plant 9, No. 80, Dongfenghe East Road, Yangzhou Economic Development Zone, Jiangsu Province, 225,101 Patentee after: Jiangsu Yousheng Automobile Technology Co.,Ltd. Address before: 2058 Huqingping Road, Qingpu District, Shanghai, 201702 Patentee before: Shanghai Yousheng Aluminum Co.,Ltd. |