CN106736167A - Horizontal stator welding tooling - Google Patents
Horizontal stator welding tooling Download PDFInfo
- Publication number
- CN106736167A CN106736167A CN201611255038.9A CN201611255038A CN106736167A CN 106736167 A CN106736167 A CN 106736167A CN 201611255038 A CN201611255038 A CN 201611255038A CN 106736167 A CN106736167 A CN 106736167A
- Authority
- CN
- China
- Prior art keywords
- positioning bucket
- bucket
- power transmission
- transmission shaft
- core pipe
- 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
Links
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
- B23K37/0426—Fixtures for other work
- B23K37/0435—Clamps
- B23K37/0443—Jigs
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
-
- 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
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/36—Electric or electronic devices
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Engineering (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
The invention provides a kind of horizontal stator welding tooling, the steel plate punching that it both can guarantee that closed assembly with one heart, can ensure that the steel plate lamination structure after closed assembly is tight again.It includes frame and positioning bucket, and oil cylinder is arranged on cylinder installation seat, and the piston rod front end of oil cylinder is connected with joint；The rear end of power transmission shaft passes core pipe and inserts joint, the front end of power transmission shaft passes core pipe after passing through transition sleeve, positioning bucket is coaxially disposed with power transmission shaft, on the bucket wall of positioning bucket circumferentially at least three strip grooves are uniformly offered along it, circular push pedal is provided with positioning bucket, horizontally disposed cam-type tightening shaft is provided with positioning bucket, offered on positioning bucket with the middle part of cam-type tightening shaft just to bar-shaped trough, bar-shaped trough internal clearance is equipped with rebound, the outer sheath of positioning bucket is equipped with pressure ring and preceding shelves ring, the lower end of one of workpiece support bar is affixed with rebound and can be moved up and down along slot, other two workpiece support bar is affixed with positioning bucket respectively.
Description
Technical field
The present invention relates to welding tooling technical field, specially a kind of horizontal stator welding tooling.
Background technology
Generator unit stator is made up of many steel plate punching closed assembly welding, and current closed assembly mode is typically steel plate stamping
Piece is sleeved on mandrel successively, is compressed with pressing plate, this closed assembly mode it is difficult to ensure that concentricity between steel plate punching, and
The compression dynamics of pressing plate is small, situation about not pressing tightly, the stator quality after influence welding easily occurs.
The content of the invention
Regarding to the issue above, the invention provides a kind of horizontal stator welding tooling, its steel plate stamping that both can guarantee that closed assembly
Piece with one heart, can ensure the steel plate lamination structure after closed assembly closely, and then ensure follow-up stator welding quality again.
A kind of horizontal stator welding tooling, it is characterised in that：It includes frame and positioning bucket, in the frame side by side successively
Cylinder installation seat, support base and bearing block be installed, oil cylinder be arranged on the cylinder installation seat and the oil cylinder piston rod
In horizontal direction, the piston rod front end of the oil cylinder is connected with joint；Horizontal through hole is offered on the support base, after core pipe
The horizontal through hole of the end insertion support base and the cooperation of the two gap, the front end of the core pipe passes through the bearing block and its front end
Coaxial on lateral wall to be connected with rear end cap, the core pipe is rotated with the bearing block by self-aligning roller bearing and is connected, the core
Interference is provided with transition sleeve on the front end inner tubal wall of pipe；Power transmission shaft is located in the core pipe and same with the piston rod of the oil cylinder
Axle is set, and the rear end of the power transmission shaft passes the core pipe and inserts the joint, and the power transmission shaft is rotated with the joint and connected
Connect, the front end of the power transmission shaft passes the core pipe after passing through the transition sleeve, and the power transmission shaft is matched somebody with somebody with the transition sleeve gap
Close；The positioning bucket is in the barrel-shaped structure of both ends open, and the positioning bucket is coaxially disposed with the power transmission shaft, the positioning bucket
Rear end it is affixed with the rear end cap, the front end of the positioning bucket is connected with drive end bearing bracket；Along its week on the bucket wall of the positioning bucket
At least three strip grooves are offered to uniform, the length direction of the strip groove is flat with the axial direction of the positioning bucket
OK；Circular push pedal is provided with the positioning bucket, the circular push pedal is coaxially affixed with the front end of the power transmission shaft, and the circle is pushed away
The edge of plate is connected with flange along its circumference, and the flange inserts the strip groove and stretches out the positioning bucket one by one,
The flange coordinates with the strip groove gap；Horizontally disposed cam-type tightening shaft is provided with the positioning bucket, it is described
The rear end cap is inserted in the rear end of cam-type tightening shaft and the two gap coordinates, and the front end of the cam-type tightening shaft is described in
Drive end bearing bracket and the two gap coordinate, offered on the positioning bucket with the middle part of the cam-type tightening shaft just to bar-shaped trough,
The bar-shaped trough internal clearance is equipped with rebound, and the lower end of the rebound contacts with the cam-type tightening shaft；It is described
The outer sheath of positioning bucket is equipped with pressure ring and preceding shelves ring, and the pressure ring is located between the circular push pedal and the preceding shelves ring, described
Pressure ring coordinates with the positioning bucket gap, and the preceding shelves ring is fixed on the drive end bearing bracket；On the pressure ring and the preceding shelves ring
Three slots are circumferentially uniformly offered respectively, and the slot on the pressure ring is just right one by one with slot on the preceding baffle ring, just
To two slots in be interspersed with workpiece support bar, the lower end of one of them workpiece support bar and the rebound are solid
Connect and can be moved up and down along the slot, workpiece support bar described in other two is affixed with the positioning bucket respectively.
Further, the cam-type tightening shaft includes integrally formed front axle, axis and rear axle, institute successively from front to back
State front axle and the rear axle is coaxially disposed, and the diameter of the two is respectively less than the diameter of the axis, the axis of the axis and institute
State the diameter parallel of front axle but misaligned；The rear axle inserts the rear end cap and the two gap coordinates, and the front axle passes through institute
State drive end bearing bracket and the two gap coordinates, the lower end of the rebound contacts with the axis.
Further, it is connected with the first elastic buffer along its circumference on the side relative with the preceding baffle ring of the pressure ring
Circle, be connected with the preceding shelves ring with the first elastic buffer circle just to the second elastic buffer circle.
Further, locating rod is connected with the lateral wall of the positioning bucket along its length, the locating rod is passed through
The pressure ring and the preceding baffle ring, the locating rod are just right up and down with the cam-type tightening shaft.
Further, the quantity of the strip groove is three.
Further, the core pipe is formed integrally with the rear end cap.
Further, the circular push pedal is formed integrally with the flange.
The beneficial effects of the invention are as follows：
The closed assembly of steel plate punching is carried out using welding tooling of the invention, steel plate punching is sleeved on three workpiece support bars successively
Outside, starts oil cylinder, circular push pedal is promoted pressing plate forward, steel plate punching is pressed between pressing plate and front apron, Ran Houzhuan
Moving cam formula tightening shaft, makes its upward jack-up rebound, workpiece support bar now affixed with rebound move upwards, and it is right to realize
The radial direction stretching of steel plate punching, and then the concentricity of steel plate punching is ensure that, next can be welded；This frock can be quick
The axial compression and radial direction stretching of steel plate punching are realized, and it is simple to operate, it is ensured that follow-up stator welding quality.
Brief description of the drawings
Fig. 1 is overall structure diagram of the invention；
Fig. 2 is top view of the invention；
Fig. 3 is the sectional view of the line A-A along Fig. 2；
Fig. 4 is the sectional view of the line B-B along Fig. 3；
Fig. 5 is the front view of cam-type tightening shaft；
Fig. 6 is the sectional view of the line C-C along Fig. 5；
Fig. 7 is the enlarged drawing in D regions in Fig. 3；
Fig. 8 is the front view of circular push pedal.
Reference：1- frames；3- cylinder installation seats；4- support bases；5- bearing blocks；6- oil cylinders；7- joints；8- core pipes；
9- rear end caps；10- self-aligning roller bearings；11- transition sleeves；12- power transmission shafts；13- positioning buckets；14- drive end bearing brackets；15- strips lead to
Groove；16- circle push pedals；16-1- flanges；17- cam-type tightening shafts；17-1- front axles；17-2- axis；17-3- rear axles；18- mistakes
Cab apron；19- pressure rings；Shelves ring before 20-；21- slots；22- workpiece support bars；23- the first elastic buffer circles；The elasticity of 24- second is slow
Punching circle；25- locating rods.
Specific embodiment
See Fig. 1-8, a kind of horizontal stator welding tooling of the invention, it includes frame 1 and positioning bucket 13, in frame 1 simultaneously
Row is sequentially installed with cylinder installation seat 3, support base 4 and bearing block 5, oil cylinder 6 be arranged on cylinder installation seat 3 and oil cylinder 6 work
Stopper rod in horizontal direction, one end of the piston rod front end of oil cylinder 6 insertion joint 7 and with the interference fit of joint 7；Opened on support base 4
Horizontal through hole, the horizontal through hole of the rear end insertion support base 4 of core pipe 8 and the cooperation of the two gap are provided with, the front end of core pipe 8 passes through axle
Coaxial in bearing 5 and its front end outer side wall to be connected with rear end cap 9, core pipe 8 is rotated with bearing block 5 by self-aligning roller bearing 10 and connected
Connect, interference is provided with transition sleeve 11 on the front end inner tubal wall of core pipe 8；Power transmission shaft 12 be located in core pipe 8 and with the piston of oil cylinder 6
Bar is coaxially disposed, and the rear end of power transmission shaft 12 passes core pipe 8 and inserts joint 7, and power transmission shaft 12 is rotated with joint 7 and is connected, power transmission shaft
12 front end passes core pipe 8 after passing through transition sleeve 11, and power transmission shaft 12 coordinates with the gap of transition sleeve 11.
Positioning bucket 13 is in the barrel-shaped structure of both ends open, and positioning bucket 13 is coaxially disposed with power transmission shaft 12, positioning bucket 13
Rear end is affixed by screw with rear end cap 9, and the front end of positioning bucket 13 is connected with drive end bearing bracket 14 by screw；The bucket wall of positioning bucket 13
On circumferentially uniformly offer three strip grooves 15 along it, the length direction of strip groove 15 is put down with the axial direction of positioning bucket 13
OK；Circular push pedal 16 is provided with positioning bucket 13, circular push pedal 16 is coaxially affixed with the front end of power transmission shaft 12, the side of circular push pedal 16
Flange 16-1 is connected with along its circumference at edge, flange 16-1 inserts strip groove 15 and stretches out positioning bucket 13 one by one, flange 16-
1 coordinates with the gap of strip groove 15.
Horizontally disposed cam-type tightening shaft 17 is provided with positioning bucket 13, cam-type tightening shaft 17 includes successively from front to back
Integrally formed front axle 17-1, axis 17-2 and rear axle 17-3, front axle 17-1 and rear axle 17-3 are coaxially disposed, and the diameter of the two
The respectively less than diameter of axis 17-2, the axis of axis 17-2 and the diameter parallel of front axle 17-1 but misaligned；Rear axle 17-3 is inserted
Rear end cap 9 and the cooperation of the two gap, front axle 17-1 are offered with through drive end bearing bracket 14 and the cooperation of the two gap on positioning bucket 13
Axle 17-2 just to bar-shaped trough, bar-shaped trough internal clearance is equipped with rebound 18, and lower end and the axis 17-2 of rebound 18 connect
Touch.
The outer sheath of positioning bucket 13 is equipped with pressure ring 19 and preceding shelves ring 20, pressure ring 19 be located at circular push pedal 16 and preceding shelves ring 20 it
Between, pressure ring 19 coordinates with the gap of positioning bucket 13, and preceding baffle ring 20 is fixed on drive end bearing bracket 14；On pressure ring 19 and preceding shelves ring 20 circumferentially
Uniformly offer three slots 21 respectively, the slot 21 on pressure ring 19 is just right one by one with slot 21 on preceding baffle ring 20, just to
Workpiece support bar 22 is interspersed with two slots 21, the lower end of one of workpiece support bar 22 is affixed with rebound 18 and can edge
Slot 21 is moved up and down, and other two workpiece support bar 22 is affixed with positioning bucket 13 respectively.
Preferably, the first elastic buffer circle 23 is connected with along its circumference on the side relative with preceding baffle ring 20 of pressure ring 19,
Be connected with preceding shelves ring 20 with the first elastic buffer circle 23 just to the second elastic buffer circle 24.So, it is ensured that in compression steel
Will not wear and tear steel plate punching during plate punching.
Preferably, locating rod 25 is connected with the lateral wall of positioning bucket 13 along its length, locating rod 25 passes through pressure ring
19 and preceding baffle ring 20, locating rod 25 is just right about 17 with cam-type tightening shaft.In this way, quick positioning and installation pressure ring and preceding shelves
Ring.
Preferably, core pipe 8 is formed integrally with rear end cap 9, and circular push pedal 16 is formed integrally with flange 16-1.In this way, being easy to
Manufacture, while also improving the structural strength of part.
Installation process：
Preceding shelves ring 20 is removed, rotation cam formula tightening shaft 17 makes rebound 18 be in low level, is then set with steel plate punching successively
On workpiece support bar 22, after suit terminates, fixed preceding shelves ring 20 is installed, starts oil cylinder 6, the piston rod of oil cylinder 6 stretches out, and drives
Power transmission shaft 12 travels forward, and power transmission shaft 12 promotes the flange 16-1 of circular push pedal 16, circular push pedal 16 to promote pressure ring 19 forward, will
Steel plate punching is pressed between pressure ring 19 and preceding shelves ring 20, realizes the axial compression of steel plate punching, rotation cam formula tightening shaft 17
Make it by the jack-up of rebound 18, workpiece support bar 22 now affixed with rebound 18 moves, steel plate punching is radially supportted upwards
Tightly, so as to complete the closed assembly of steel plate punching, can now be welded, after weld together, rotational positioning barrel 13 is carried out
It is lower to weld together, until welding is completed.Because weight is very big after stator laminating, therefore positioning bucket meeting in welding process is not had to concern
Rotate influence welding quality.
Claims (7)
1. a kind of horizontal stator welding tooling, it is characterised in that：It includes frame and positioning bucket, pacifies successively side by side in the frame
Equipped with cylinder installation seat, support base and bearing block, oil cylinder is arranged on the cylinder installation seat and the piston rod of the oil cylinder is in
Horizontal direction, the piston rod front end of the oil cylinder is connected with joint；Horizontal through hole, the rear end of core pipe are offered on the support base
The horizontal through hole and the two gap for inserting the support base coordinate, and the front end of the core pipe is passed through outside the bearing block and its front end
Coaxial on the wall of side to be connected with rear end cap, the core pipe is rotated with the bearing block by self-aligning roller bearing and is connected, the core pipe
Front end inner tubal wall on interference transition sleeve is installed；Power transmission shaft is located in the core pipe and coaxial with the piston rod of the oil cylinder
Set, the rear end of the power transmission shaft passes the core pipe and inserts the joint, the power transmission shaft is rotated with the joint and is connected,
The front end of the power transmission shaft passes the core pipe after passing through the transition sleeve, and the power transmission shaft coordinates with the transition sleeve gap；
The positioning bucket is in the barrel-shaped structure of both ends open, and the positioning bucket is coaxially disposed with the power transmission shaft, the positioning bucket
Rear end is affixed with the rear end cap, and the front end of the positioning bucket is connected with drive end bearing bracket；Along its circumference on the bucket wall of the positioning bucket
At least three strip grooves uniformly are offered, the length direction of the strip groove is axially in parallel with the positioning bucket；
Circular push pedal is provided with the positioning bucket, the circular push pedal is coaxially affixed with the front end of the power transmission shaft, the circular push pedal
Edge be connected with flange along its circumference, the flange inserts the strip groove and stretches out the positioning bucket one by one, institute
Flange is stated to coordinate with the strip groove gap；Horizontally disposed cam-type tightening shaft is provided with the positioning bucket, it is described convex
The rear end cap is inserted in the rear end of wheeled tightening shaft and the two gap coordinates, and the front end of the cam-type tightening shaft is through before described
End cap and the two gap coordinate, offered on the positioning bucket with the middle part of the cam-type tightening shaft just to bar-shaped trough, institute
State bar-shaped trough internal clearance and be equipped with rebound, the lower end of the rebound contacts with the cam-type tightening shaft；It is described fixed
The outer sheath of position bucket is equipped with pressure ring and preceding shelves ring, and the pressure ring is located between the circular push pedal and the preceding shelves ring, the pressure
Ring coordinates with the positioning bucket gap, and the preceding shelves ring is fixed on the drive end bearing bracket；Edge on the pressure ring and the preceding shelves ring
Circumferential uniformly to offer three slots respectively, the slot on the pressure ring is just right one by one with slot on the preceding baffle ring, just right
Two slots in be interspersed with workpiece support bar, the lower end of one of them workpiece support bar is affixed with the rebound
And can be moved up and down along the slot, workpiece support bar described in other two is affixed with the positioning bucket respectively.
2. a kind of horizontal stator welding tooling according to claim 1, it is characterised in that：The cam-type tightening shaft is by preceding
Include integrally formed front axle, axis and rear axle successively after, the front axle and the rear axle are coaxially disposed, and the diameter of the two
The diameter of respectively less than described axis, the diameter parallel of the axis of the axis and the front axle but misaligned；The rear axle insertion
The rear end cap and the cooperation of the two gap, the front axle passes through the drive end bearing bracket and the two gap coordinates, under the rebound
End contacts with the axis.
3. a kind of horizontal stator welding tooling according to claim 1 and 2, it is characterised in that：The pressure ring with it is described
The first elastic buffer circle is connected with along its circumference on the relative side of preceding baffle ring, is connected with the preceding shelves ring and first bullet
Property bumper ring just to the second elastic buffer circle.
4. a kind of horizontal stator welding tooling according to claim 3, it is characterised in that：On the lateral wall of the positioning bucket
Be connected with locating rod along its length, the locating rod passes through the pressure ring and the preceding baffle ring, the locating rod with it is described
Cam-type tightening shaft is just right up and down.
5. a kind of horizontal stator welding tooling according to claim 4, it is characterised in that：The quantity of the strip groove
It is three.
6. a kind of horizontal stator welding tooling according to claim 5, it is characterised in that：The core pipe and the rear end cap
It is formed integrally.
7. a kind of horizontal stator welding tooling according to any one of claim 4-6, it is characterised in that：The circle is pushed away
Plate is formed integrally with the flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611255038.9A CN106736167B (en) | 2016-12-30 | 2016-12-30 | Horizontal stator welding tooling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611255038.9A CN106736167B (en) | 2016-12-30 | 2016-12-30 | Horizontal stator welding tooling |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106736167A true CN106736167A (en) | 2017-05-31 |
| CN106736167B CN106736167B (en) | 2018-05-18 |
Family
ID=58954500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611255038.9A Expired - Fee Related CN106736167B (en) | 2016-12-30 | 2016-12-30 | Horizontal stator welding tooling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106736167B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110181380A (en) * | 2019-05-31 | 2019-08-30 | 广东长盈精密技术有限公司 | Polishing jig |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5658477A (en) * | 1995-11-22 | 1997-08-19 | Odawara Automation, Inc. | Method and apparatus for welding a stack of stator laminations |
| CN102545492A (en) * | 2012-02-27 | 2012-07-04 | 常州市神力电机有限公司 | Large-sized and medium-sized motor stator iron core laminating tool |
| JP2013027180A (en) * | 2011-07-22 | 2013-02-04 | Nittoku Eng Co Ltd | Skewed stator manufacturing device |
| CN204179872U (en) * | 2014-11-22 | 2015-02-25 | 广东伊莱斯电机有限公司 | A kind of servo motor stator punching sheet lamination device |
| CN204997284U (en) * | 2015-09-30 | 2016-01-27 | 常州市大千机械制造有限公司 | Pressure welding of folding of stator connects frock |
| CN205237297U (en) * | 2015-12-31 | 2016-05-18 | 乐山牧田电器有限公司 | Motor stator welding equipment |
| CN205673774U (en) * | 2016-06-03 | 2016-11-09 | 江西省欧泰诗汽车部件有限公司 | A kind of stator casing automatic welder(welding machine) |
| CN206445420U (en) * | 2016-12-30 | 2017-08-29 | 无锡明珠钢球有限公司 | A kind of horizontal stator welding tooling |
-
2016
- 2016-12-30 CN CN201611255038.9A patent/CN106736167B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5658477A (en) * | 1995-11-22 | 1997-08-19 | Odawara Automation, Inc. | Method and apparatus for welding a stack of stator laminations |
| JP2013027180A (en) * | 2011-07-22 | 2013-02-04 | Nittoku Eng Co Ltd | Skewed stator manufacturing device |
| CN102545492A (en) * | 2012-02-27 | 2012-07-04 | 常州市神力电机有限公司 | Large-sized and medium-sized motor stator iron core laminating tool |
| CN204179872U (en) * | 2014-11-22 | 2015-02-25 | 广东伊莱斯电机有限公司 | A kind of servo motor stator punching sheet lamination device |
| CN204997284U (en) * | 2015-09-30 | 2016-01-27 | 常州市大千机械制造有限公司 | Pressure welding of folding of stator connects frock |
| CN205237297U (en) * | 2015-12-31 | 2016-05-18 | 乐山牧田电器有限公司 | Motor stator welding equipment |
| CN205673774U (en) * | 2016-06-03 | 2016-11-09 | 江西省欧泰诗汽车部件有限公司 | A kind of stator casing automatic welder(welding machine) |
| CN206445420U (en) * | 2016-12-30 | 2017-08-29 | 无锡明珠钢球有限公司 | A kind of horizontal stator welding tooling |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110181380A (en) * | 2019-05-31 | 2019-08-30 | 广东长盈精密技术有限公司 | Polishing jig |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106736167B (en) | 2018-05-18 |
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| TR01 | Transfer of patent right |
Effective date of registration: 20201203 Address after: 239000 Jiaming electromechanical plant, Jinger Road, Chengdong Industrial Park, Chuzhou, Anhui Province Patentee after: Anhui Zhuo Chuang metal products Co., Ltd Address before: Jiangsu city of Wuxi Province East District 214000 supporting five No. B18-3 Patentee before: WUXI MINGZHU STEEL BALL Co.,Ltd. |
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Granted publication date: 20180518 Termination date: 20201230 |
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