CN104907827B - Motor shaft multiple accessory integrally assembles device - Google Patents
Motor shaft multiple accessory integrally assembles device Download PDFInfo
- Publication number
- CN104907827B CN104907827B CN201510365479.3A CN201510365479A CN104907827B CN 104907827 B CN104907827 B CN 104907827B CN 201510365479 A CN201510365479 A CN 201510365479A CN 104907827 B CN104907827 B CN 104907827B
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- Prior art keywords
- cylinder
- passage
- bearing
- feeding
- vibrating disk
- Prior art date
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- 238000010079 rubber tapping Methods 0.000 claims abstract description 20
- 238000007599 discharging Methods 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims description 10
- 238000009434 installation Methods 0.000 claims description 7
- 230000009977 dual effect Effects 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 3
- 230000007246 mechanism Effects 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000000945 filler Substances 0.000 description 3
- 244000309464 bull Species 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 229910001141 Ductile iron Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P21/00—Machines for assembling a multiplicity of different parts to compose units, with or without preceding or subsequent working of such parts, e.g. with programme control
- B23P21/004—Machines for assembling a multiplicity of different parts to compose units, with or without preceding or subsequent working of such parts, e.g. with programme control the units passing two or more work-stations whilst being composed
- B23P21/006—Machines for assembling a multiplicity of different parts to compose units, with or without preceding or subsequent working of such parts, e.g. with programme control the units passing two or more work-stations whilst being composed the conveying means comprising a rotating table
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/001—Article feeders for assembling machines
-
- 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
- H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
Motor shaft multiple accessory integrally assembles device, it is characterised in that：Including workbench, the workbench is provided with dividing plate, and rotating disk is arranged between the dividing plate, and the rotating disk is two layers, and it uniformly offers workpiece hole above；The workbench side is provided with feeding-passage and tapping channel, feeding-passage and tapping channel arranged in dislocation, and feeding-passage discharging opening is provided with the cylinder one being pushed into workpiece in workpiece hole；Compared with prior art, it is an advantage of the invention that：The present apparatus can be penetrated axle in rotating disk by Automated condtrol automatically, by each assemble mechanism, by blade, card and bearing, speed is fast, and position is accurate, is adapted to promote the use of.
Description
Technical field
The invention belongs to field of mechanical technique, and in particular to a kind of motor shaft multiple accessory integrally assembles device.
Background technology
Axle (shaft) is to be through the cylindrical object among bearing or among wheel or among gear, but also has small part
It is square.Axle is support rotary part and turned round therewith to transmit motion, moment of torsion or the machine components of moment of flexure.Generally
Round metal is shaft-like, and each section can have different diameters.The part for making gyration in machine is just mounted on axle.
The structure design of axle is to determine the reasonable profile and entire infrastructure size of axle, the important step designed for axle.It by
Installation part type, size and its position, the fixed form of part on axle, property, direction, size and the distribution situation of load,
The type and size of bearing, blank, manufacture and the assembly technology of axle, installation and the factor such as transport, the deformation to axle are relevant.Design
Person can be designed according to the specific requirement of axle, can do several schemes if necessary and be compared, to select best design,
It is general axis principles of structural design below：1st, material is saved, mitigates weight, as far as possible using equal strength appearance and size or big section
The cross sectional shape of coefficient；2nd, it is easy to parts on shaft to be accurately positioned, consolidate, assemble, dismantle and adjust；3rd, using various reduction stress
Collection neutralizes the structural measure for improving intensity；4th, it is easy to fabricate and ensure precision.
The classification of axle:Common axle according to the planform of axle can be divided into bent axle, d-axis, flexible axle, solid shafting, hollow shaft,
Stiff shaft, flexible axle（Flexible axle）.
D-axis can be divided into again：1. rotating shaft, moment of flexure was not only born but also had born moment of torsion during work, and be most common axle in machinery, such as
Axle in various decelerators etc..2. mandrel, it is solely subjected to moment of flexure for support rotary part and turns without transmitting moment of torsion, some mandrels
Dynamic, the axle of such as rolling stock, some mandrels do not rotate then, the axle of such as supporting pulley.3. power transmission shaft, it is mainly used to transmit and turns round
Square and be not subject to moment of flexure, long optical axis, the drive shaft of automobile in such as crane movable mechanism.The material of axle mainly uses carbon
Steel or steel alloy, it can also use spheroidal graphite cast-iron or alloy cast iron etc..The ability to work of axle is generally dependent on strength and stiffness, rotating speed
Stability of vibration is additionally depended on when high.
The A of Patent publication No CN 104456027 disclose a kind of generator drive end bearing assembling structure, it is characterised in that
Including rotating shaft and Driving terminal, bearing is arranged in the bearing saddle bore of the Driving terminal, and the inner ring hot jacket of the bearing
In the rotating shaft, the Driving terminal both sides are fixed with inner cap and enclosing cover and form the inner chamber for closing the bearing respectively,
Disc is arranged in the inner chamber, and the disc hot jacket in the rotating shaft and props up the outer end of the bearing inner race
Face；The upper end of the enclosing cover is provided with oil filler point, and oil inlet pipe is connected on the oil filler point, and the lower end of the enclosing cover is provided with oil discharge outlet
；The Driving terminal is provided with the through hole of axial direction, and the oil filler point connects the through hole, and is communicated to by the through hole in described
Chamber.
And for example the A of Patent publication No CN 104539085 disclose a kind of assembly tooling of motor brush rocker, including electric motor end cap
And brush carrier, resigning hole and bearing with end cover room are respectively arranged with electric motor end cap, brush pilot hole is provided with brush carrier,
Cylindrical step end axle is provided with one end of brush positioning core axle, through hole, cylindrical stage are provided with brush positioning core axle
Rank end axle is arranged in bearing with end cover room, and the inner side seam end face on bearing with end cover room is with cylindrical step facade apical grafting one
Rise, brush locating bar is passed sequentially through to wear with brush pilot hole after resigning hole and through hole and is connected together.
At present, because the processing of motor needs complicated process, it is necessary to install multiple accessories on an axle, match somebody with somebody for zero
The assembling of part, mostly at present is that such speed is slow, and mechanical degree is low based on line workers assembling.While manual assembly precision is not
Height, cause product disqualification rate higher.
The content of the invention
The present invention is in view of the shortcomings of the prior art, it is proposed that a kind of motor shaft multiple accessory integrally assembles device, and the device can
Three blade, bearing and card accessories of disposable assembling motor, speed is fast, reduces manufacturing procedure, makes production efficiency significantly
Improve.
To realize the purpose of the present invention, the technical solution adopted by the present invention is：
Motor shaft multiple accessory integrally assembles device, it is characterised in that：Including workbench, the workbench is provided with dividing plate,
Rotating disk is arranged between the dividing plate, and the rotating disk is two layers, and it uniformly offers workpiece hole above；The workbench side is set
There are feeding-passage and tapping channel, feeding-passage and tapping channel arranged in dislocation, feeding-passage discharging opening, which is provided with, pushes away workpiece
Enter the cylinder one in workpiece hole；
Blade feeding-passage, card conveying vibrating disk one are sequentially installed along rotating disk axis on the workbench of tapping channel side
With bearing conveying vibrating disk one, the He of card conveying vibrating disk two is sequentially installed along rotating disk axis on the workbench of feeding-passage side
Bearing conveying vibrating disk two；
Assembling cylinder one, bearing conveying vibrating disk one and bearing conveying vibrating disk are installed below the blade feeding-passage
Two lower section is equipped with assembling cylinder two；It is also equipped with the charging workpiece of feeding-passage being pushed into assembling gas above the dividing plate
The vertical push cylinder one of the top station of cylinder one, card conveying vibrating disk one and the discharge end of card conveying vibrating disk two be provided with by
The accessory of output is assembled to the vertical push cylinder two above workpiece spindle, bearing conveying vibrating disk one and bearing conveying vibrating disk two
Discharge end is provided with the vertical push cylinder three for the top station that the accessory of output is pushed into assembling cylinder two；The assembling gas
Cylinder two is arranged on above work rest, and work rest is arranged on above workbench, and the tapping channel discharging opening is also equipped with picking-up container.
Preferentially, the cylinder one, assembling cylinder two, assembling cylinder one are single-piston cylinder, vertical push cylinder one, are hung down
Straight push cylinder two and vertical push cylinder three are dual piston cylinder.
Preferentially, the feeding-passage is upturned, and tapping channel tilts downwards.
Compared with prior art, it is an advantage of the invention that：The present apparatus, which can be penetrated axle automatically by Automated condtrol, to be turned
In disk, then by each assemble mechanism blade, card and bearing are assembled to above motor shaft, are automatically drained out simultaneously, speed is fast, position
Put accurately, be adapted to promote the use of.
Brief description of the drawings
Brief description is next carried out to the present invention by means of the accompanying drawing of embodiment now.In accompanying drawing：
Fig. 1 shows that motor shaft multiple accessory of the present invention integrally assembles the structure arrangement schematic diagram of device；
Fig. 2 shows that motor shaft multiple accessory of the present invention integrally assembles the front view of device；
Fig. 3 shows that Fig. 2's further disassembles schematic diagram；
Fig. 4 shows the schematic diagram of Fig. 3 another view direction；
Fig. 5 shows that Fig. 2's further disassembles schematic diagram.
Embodiment
With reference to specific embodiment, the present invention is described in detail.Following examples will be helpful to the technology of this area
Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that the ordinary skill to this area
For personnel, without departing from the inventive concept of the premise, various modifications and improvements can be made.These belong to the present invention
Protection domain.
Embodiment 1
As illustrated, in the present embodiment, cylinder 1, assembling cylinder 22, assembling cylinder 1 are single-piston cylinder, are hung down
Straight push cylinder 1, vertical push cylinder 26 and vertical push cylinder 3 17 are dual piston cylinder.
Motor shaft multiple accessory integrally assembles device, including workbench 1, the workbench 1 are provided with dividing plate 8, and rotating disk 7 is installed
Between the dividing plate 8, the rotating disk 7 be two layers, between leave gap, its above uniformly offer workpiece hole.The axle of rotating disk 7
Feel at ease and bull stick is housed, bull stick rotates rotating disk 7 by the motor driving above dividing plate 8.
In addition, the side of workbench 1 is provided with feeding-passage 14 and tapping channel 12, feeding-passage 14 and tapping channel 12 misplace
Installation, the discharging opening of feeding-passage 14 are provided with the cylinder 1 being pushed into workpiece in workpiece hole, the discharge end peace of tapping channel 12
Equipped with the cylinder 5 19 for withstanding workpiece, by cylinder 5 19, workpiece will not deflect away from tapping channel 12 in position when discharge.
The feeding-passage 14 is upturned, and tapping channel 12 tilts downwards.
Blade feeding-passage 18 is sequentially installed along rotating disk axis on the workbench 1 of the side of tapping channel 12, card conveying is shaken
The 9A of the Moving plate one and 16A of bearing conveying vibrating disk one, card is sequentially installed along rotating disk axis on the workbench 1 of the side of feeding-passage 14
The 9B of the conveying vibrating disk two and 16B of bearing conveying vibrating disk two.Wherein, the 9A of card conveying vibrating disk one and card conveying vibrating disk two
9B is symmetrically installed by the center line of workbench 1, and the 16A of bearing conveying vibrating disk one and the 16B of bearing conveying vibrating disk two pass through work
The center line of platform 1 is symmetrically installed.
The lower section of blade feeding-passage 18 is provided with assembling cylinder 1, and the 16A of bearing conveying vibrating disk one and bearing conveying are shaken
Assembling cylinder 22 is equipped with below the 16B of Moving plate two；The dividing plate 8 is also equipped with the charging workpiece of feeding-passage 18 above
It is pushed into the vertical push cylinder 1 of the assembling top station of cylinder 1, the 9A of card conveying vibrating disk one and card conveying vibration
The 9B discharge ends of disk two are provided with is assembled to vertical push cylinder 26 above workpiece spindle, bearing conveying vibration by the accessory of output
The 16A of disk one and the 16B discharge ends of bearing conveying vibrating disk two are provided with the top work that the accessory of output is pushed into assembling cylinder 22
The vertical push cylinder 3 17 of position.
Assemble cylinder 22 to be arranged on above work rest 21, work rest 21 is arranged on above workbench 1, the tapping channel
12 discharging openings are also equipped with picking-up container 20, and electric cabinet 13 is arranged on above workbench 1.
Integrally assembling device, workflow are such to this motor shaft multiple accessory disclosed by the invention, and staff is first
First workpiece is sequentially placed in feeding-passage 14, because feeding-passage 14 is upturned, motor shaft sheet is as cylinder, so
Feed station can be rolled into automatically, and motor shaft is promoted and is sent into the workpiece hole on rotating disk 7 by cylinder 1.
Motor shaft drives swing offset station by rotating disk 7, carries out the installation of blade first, i.e., blade feeding-passage 18 is to leaf
Piece is fed, and vertical push cylinder 1 pushes downwards blade, due to being to connect between feeding-passage 18 and assembling cylinder 1
Passage is connected to, vertical push cylinder 1, which pushes down on blade by passage, is fed into the top of assembling cylinder 1, assembles cylinder
Blade is pushed forward be inserted in above motor shaft again by 1, and blade assembling process is completed.
Motor shaft continues to drive swing offset station to enter the piece station that is loaded by rotating disk 7, and card and bearing are double, i.e.,
Motor shaft both sides are symmetrically assembled, and card is sent into prepackage station by the 9A of card conveying vibrating disk one and the 9B of card conveying vibrating disk two,
Vertical push cylinder 26 pushes down on card, is directly stuck in the predeterminated position of motor shaft, and card assembling procedure is completed.
Motor shaft continues to drive swing offset station to enter dress bearing station, the dress bearing station installation axle side of holding by rotating disk 7
Method is identical with installation blade method, i.e., pushing away bearing on the first 16A of bearing conveying vibrating disk one and the 16B of bearing conveying vibrating disk two
Advance is sent, bearing is pushed to the top station of assembling cylinder 22, assembles cylinder 22 by vertical push cylinder 3 17 by passage
Bearing is pushed forward and is inserted in above motor shaft, bearing assembling procedure is completed.
By the swing offset of above-mentioned several stations, complete 360 degree of one turn of rotating disk, when feeding-passage 14 is headed into by cylinder 1
During new workpiece, the workpiece of machined completion is ejected, and is rolled into tapping channel 12 and is discharged automatically, and manufacturing procedure is completed.
Claims (3)
1. motor shaft multiple accessory integrally assembles device, it is characterised in that：Including workbench (1), the workbench (1) be provided with every
Plate (8), rotating disk (7) are arranged between the dividing plate (8), and the rotating disk (7) is two layers, and it uniformly offers workpiece hole above；
Workbench (1) side is provided with feeding-passage (14) and tapping channel (12), and feeding-passage (14) and tapping channel (12) are wrong
Position installation, feeding-passage (14) discharging opening are provided with the cylinder one (15) being pushed into workpiece in workpiece hole；The tapping channel
(12) blade feeding-passage (18), card conveying vibrating disk one (9A) are sequentially installed along rotating disk axis on the workbench (1) of side
With bearing conveying vibrating disk one (16A), it is defeated along rotating disk axis card to be sequentially installed on the workbench (1) of feeding-passage (14) side
Send vibrating disk two (9B) and bearing conveying vibrating disk two (16B)；Assembling cylinder is installed below the blade feeding-passage (18)
Assembling cylinder two (2) is equipped with below one (11), bearing conveying vibrating disk one (16A) and bearing conveying vibrating disk two (16B)；
The dividing plate (8) is also equipped with the charging workpiece of blade feeding-passage (18) being pushed into assembling cylinder one (11) top work above
The vertical push cylinder one (5) of position, card conveying vibrating disk one (9A) and card conveying vibrating disk two (9B) discharge end are provided with
The accessory of output is assembled to the vertical push cylinder two (6) above workpiece spindle, bearing conveying vibrating disk one (16A) and bearing are defeated
Send vibrating disk two (16B) discharge end to be provided with the accessory of output is pushed into the vertical of top station of assembling cylinder two (2) to push away
Supply gas cylinder three (17)；The assembling cylinder two (2) is arranged on work rest (21) above, and work rest (21) is arranged on workbench (1)
Above, tapping channel (12) discharging opening is also equipped with picking-up container (20)；Blade feeding-passage (18) is fed to blade,
Vertical push cylinder one (5) pushes downwards blade, is connected between blade feeding-passage (18) and assembling cylinder one (11) logical
Road, vertical push cylinder one (5), which pushes down on blade by passage, to be fed at the top of assembling cylinder one (11), assembles cylinder one
(11) blade is pushed forward again and be inserted in above motor shaft, complete blade assembling process；Card conveying vibrating disk one (9A)
Card is sent into prepackage station with card conveying vibrating disk two (9B), vertical push cylinder two (6) pushes down on card, directly
The predeterminated position of motor shaft is stuck in, completes card assembling procedure；Bearing conveying vibrating disk one (16A) and bearing conveying vibration
Disk two (16B), which pushes bearing, to advance, and bearing is pushed to assembling cylinder two (2) by vertical push cylinder three (17) by passage
Top station, assembling cylinder two (2), which pushes forward bearing, to be inserted in above motor shaft, completes bearing assembling procedure.
2. motor shaft multiple accessory according to claim 1 integrally assembles device, it is characterised in that：The cylinder one (15),
It is single-piston cylinder to assemble cylinder two (2), assemble cylinder one (11), vertical push cylinder one (5), vertical push cylinder two (6)
It is dual piston cylinder with vertical push cylinder three (17).
3. motor shaft multiple accessory according to claim 1 integrally assembles device, it is characterised in that：The feeding-passage (14)
It is upturned, tapping channel (12) tilts downwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510365479.3A CN104907827B (en) | 2015-06-29 | 2015-06-29 | Motor shaft multiple accessory integrally assembles device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510365479.3A CN104907827B (en) | 2015-06-29 | 2015-06-29 | Motor shaft multiple accessory integrally assembles device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104907827A CN104907827A (en) | 2015-09-16 |
| CN104907827B true CN104907827B (en) | 2018-04-06 |
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ID=54077489
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510365479.3A Active CN104907827B (en) | 2015-06-29 | 2015-06-29 | Motor shaft multiple accessory integrally assembles device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104907827B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113146176B (en) * | 2021-04-07 | 2023-04-28 | 宁波新松机器人科技有限公司 | Automatic assembly device for output shaft assembly of hydraulic motor |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5556825B2 (en) * | 2012-01-24 | 2014-07-23 | 株式会社安川電機 | Production system and article manufacturing method |
| CN102794644A (en) * | 2012-08-31 | 2012-11-28 | 杭州日月电器股份有限公司 | Intelligent electronic automatic assembling machine |
| CN104070356B (en) * | 2014-07-04 | 2017-03-15 | 东莞市宏亚机械有限公司 | A kind of unusual egg automatic assembling |
| CN104308509A (en) * | 2014-10-20 | 2015-01-28 | 中山明杰自动化科技有限公司 | Automatic central shaft assembling machine of permanent-magnet claw pole type stepping motor |
| CN204711566U (en) * | 2015-06-29 | 2015-10-21 | 舟山市智海技术开发有限公司 | Motor shaft polygamy part one assembling device |
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2015
- 2015-06-29 CN CN201510365479.3A patent/CN104907827B/en active Active
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| Publication number | Publication date |
|---|---|
| CN104907827A (en) | 2015-09-16 |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Mao Huaxian Inventor after: Lin Yinghua Inventor after: Dai Wenzhou Inventor before: Peng Ling |
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| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20180309 Address after: Hangzhou City, Zhejiang province Xihu District 310024 Ling Tong Street Bridge No. 317 Building 2 layer 1 Applicant after: HANGZHOU ZHONGDA ELECTRIC Co.,Ltd. Address before: Street peak village Dinghai District of Lincheng city of Zhoushan province Zhejiang 316000 Ni Jia No. 19 Applicant before: ZHOUSHAN ZHIHAI TECHNOLOGY DEVELOPMENT Co.,Ltd. |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Multi-part integrated assembly device for motor shaft Effective date of registration: 20190819 Granted publication date: 20180406 Pledgee: Yunqi Small Town Branch of Hangzhou United Rural Commercial Bank Co.,Ltd. Pledgor: HANGZHOU ZHONGDA ELECTRIC Co.,Ltd. Registration number: Y2019330000017 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230223 Granted publication date: 20180406 Pledgee: Yunqi Small Town Branch of Hangzhou United Rural Commercial Bank Co.,Ltd. Pledgor: HANGZHOU ZHONGDA ELECTRIC Co.,Ltd. Registration number: Y2019330000017 |