CN106533079B - Taper stator punching cramp stack-press device - Google Patents
Taper stator punching cramp stack-press device Download PDFInfo
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- CN106533079B CN106533079B CN201611155648.1A CN201611155648A CN106533079B CN 106533079 B CN106533079 B CN 106533079B CN 201611155648 A CN201611155648 A CN 201611155648A CN 106533079 B CN106533079 B CN 106533079B
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- stator punching
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- cramp
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- 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
- H02K15/024—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies with slots
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Abstract
The invention discloses include stator punching stack-press device, apparatus for leveling and cramp pressing device, the ringfeder of gap between them cooperation is provided on stator punching stack-press device, lower outer cone tooling and stator punching fixing seat, a trapezoidal plate being vertically arranged is fixed in stator punching fixing seat, the two sides inclined-plane of trapezoidal plate can be inserted into two corresponding inside grooves of stator punching, apparatus for leveling includes flattening tooling, it flattens and is cased with inner cone tooling outside tooling, flattening tooling and upper inner cone tooling can be pressed on stator punching stack-press device under the promotion of smooth cylinder, cramp pressing device includes the idler wheel and idler wheel cylinder of energy transverse shifting, idler wheel is traversing under the drive of idler wheel cylinder, the top and bottom of cramp are bent to the upper and lower surfaces for being attached to taper stator respectively, the stator punching for forming taper stator is set to be fixed together.The present invention has each stator punching verticality good, and stacking is compact, and stator inside groove is neat, outside the advantage good just as column degree.
Description
Technical field
The invention belongs in a kind of technical field that motor stator punching laminates, and in particular to taper stator punching cramp is folded
Pressure device.
Background technique
The inner diameter size of each punching of cone rotor threephase asynchronous stator is different, therefore it laminates technique ratio
It is more special.Show commonly used approach, there are the poles of three customizations in laminated mold, punching is put into mold, punching is utilized
The cooperation on the cylindrical surface of the arc surface and pole of pocket bottom positions, and punching is put into mold in order, and mold is put into oil pressure
In machine, punching shape packs tightly under the action of mold outsourcing sliding block, and cramp fastens punching under the action of idler wheel, entire process
It completes.This mould structure method, the pole of positioning be it is movable, the stator inside groove of completion is uneven, poor just as column degree outside.Stator
Height error is big near cramp position.
Summary of the invention
The technical problem to be solved by the present invention is to solve the above shortcomings of the prior art and to provide a kind of each stator punchings to hang down
It directly spends, and stacking is compact, stator inside groove is neat, outside the taper stator punching cramp stack-press device good just as column degree.
To realize the above-mentioned technical purpose, the technical scheme adopted by the invention is as follows：
Taper stator punching cramp stack-press device, wherein：Including stator punching stack-press device, apparatus for leveling and cramp pressure
It attaches together and sets, ringfeder, lower outer cone tooling and the stator punching of gap between them cooperation are provided on stator punching stack-press device
Fixing seat, stator punching fixing seat are fixed on stator punching stack-press device center, stator punching with diameter from large to small according to
Secondary be placed in stator punching fixing seat vertically stacks, and lower outer cone tooling is located at stator punching fixing seat periphery, under ringfeder is located at
Outer cone tooling periphery, ringfeder and lower outer cone tooling can be slided relative to stator punching fixing seat, and ringfeder gas is equipped on ringfeder
Cylinder, ringfeder cylinder can push ringfeder to slide to lower outer cone tooling, lower outer cone tooling be squeezed to stator punching fixing seat direction, stator
Be fixed with a trapezoidal plate being vertically arranged in punching fixing seat, the short end of trapezoidal plate upper, long end under, the bevel edge of trapezoidal plate
Gradient is identical as the gradient of taper stator medial surface, and lower outer cone tooling is also obliquely installed, and the upper end of lower outer cone tooling is to calmly
The inclination of sub- punching fixing seat direction, and gradient is identical as the gradient of taper stator lateral surface, the inner ring setting of stator punching
There are several inside grooves, when stator punching is stacked in stator punching fixing seat, the two sides inclined-plane of trapezoidal plate can be inserted into stator punching
In two corresponding inside grooves of piece, one of vertical limit convex, the outer ring of stator punching are provided on the inside of lower outer cone tooling
It is provided with a limiting groove, when outer cone tooling is close to stator punching fixing seat instantly, limit convex is caught in limiting groove, trapezoidal plate
It with limit convex collective effect, rotate stator punching can not, locating slot be provided on stator punching, taper stator punching cramp is folded
Pressure device includes cramp, and after several stator punchings stack to form taper stator, the locating slot on stator punching is combined into one
The vertically extending groove body of item, cramp is caught in the vertically extending groove body, and the top and bottom of cramp are longer than taper stator,
Apparatus for leveling includes leveling bracket, and the lower part for flattening bracket is provided with stator laminating structure placement seat, the setting of cramp pressing device
At the middle part of leveling bracket, leveling frame upper is provided with pressing tooling, flattens and be cased with inner cone tooling outside tooling, flattens tooling
It is connected with smooth cylinder, stator punching stack-press device can be placed on stator laminating structure placement seat, flatten the lower surface of tooling
It is a flat surface, the diameter of the inner cavity lower end of upper inner cone tooling is greater than the upper end outer diameter of lower outer cone tooling, and is less than outer cone tooling
Lower end outer diameter, flattening tooling and upper inner cone tooling can be pressed on stator punching stack-press device under the promotion of smooth cylinder, and press
The upper surface of flat tooling is pressed in taper stator upper surface, and the inner cavity of upper inner cone tooling is pressed in lower outer cone tooling outer surface, upper interior
During the pushing for boring tooling, lower outer cone tooling continues interior shifting under the extruding of inner cone tooling, and lower outer cone tooling is made to contact and squeeze
The lateral surface of taper stator is pressed, the lower part of stator laminating structure placement seat is provided with lifting cylinder, and lifting cylinder can rush stator
Chip architecture placement seat is raised at cramp pressing device, and cramp pressing device includes the idler wheel and idler wheel gas of energy transverse shifting
Cylinder, idler wheel is traversing under the drive of idler wheel cylinder, and the top and bottom of cramp are bent to the upper surface for being attached to taper stator respectively
And lower surface, so that the stator punching for forming taper stator is fixed together.
To optimize above-mentioned technical proposal, the concrete measure taken further includes：
Above-mentioned lower outer cone tooling includes four arc blocks, and stator punching is arranged in the radians such as this four arc blocks and fixes
Around seat.
The upper corner rounding off of above-mentioned trapezoidal plate.
The upper surface of the stator punching of the top of above-mentioned taper stator and the lowermost stator punching of taper stator
The lower surface of piece is provided with cramp end and accommodates slot, and the top and bottom of cramp, which are bent, to be placed in corresponding cramp end and set
It receives in slot.
The quantity of above-mentioned ringfeder cylinder is four.
Taper stator punching cramp stack-press device of the invention mainly includes ringfeder, lower outer cone tooling and stator punching
Fixing seat has trapezoidal plate in stator punching fixing seat, when making taper stator, stator punching is put into mold, every punching
It is just positioned by trapezoidal plate, puts stator punching alignment, the stator punching degree of registration after trapezoidal plate positions is high, punching
The limiting groove of outer ring is substantially in alignment, and then cylinder pushes ringfeder mobile, and lower outer cone tooling is made to shift to stator punching, under
Limit convex in outer cone tooling is caught in the limiting groove of punching outer ring, further increases the degree of registration of stator punching, this is outer at present
Tooling is bored very close to stator punching, but is not pressed on stator punching, puts cramp well in the locating slot of stator punching,
Starting lifting cylinder, stator punching stack-press device is sent at cramp pressing device, smooth cylinder is then started, and makes to flatten tooling
Upper surface be pressed in taper stator upper surface, at this pressure, each stator punching tightly fits together, and upper inner cone tooling
Inner cavity is pressed in lower outer cone tooling outer surface, squeezes lower outer cone tooling, so that lower outer cone tooling is adjacent to stator punching, thus smooth stator
Verticality between punching keeps each stator punching perfectly aligned.Start idler wheel cylinder at this time, make idler wheel from upper inner cone tooling and
Stator punching fixing seat is protruded into gap between lower outer cone tooling, and cramp top and bottom are flattened in the upper surface of taper stator
The lower surface and.Everything is completed under the operation of servo-system, and each parameter has memory storage, after each part processing
Consistency is very good.Taper stator of the invention have passed through smooth for several times in forming process, and each stator punching verticality is good,
And stacking is compact, stator inside groove is neat, good just as column degree outside.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention；
Fig. 2 is the structural schematic diagram of stator punching stack-press device；
Fig. 3 is the schematic diagram of stator punching；
Fig. 4 is the top view of taper stator；
Fig. 5 is the schematic diagram that stator punching is placed on stator punching stack-press device.
Appended drawing reference therein is：Stator punching stack-press device 1, ringfeder 2, ringfeder cylinder 21, lower outer cone tooling 3, limit
Convex 31, stator punching fixing seat 4, trapezoidal plate 5, stator punching 6, inside groove 61, limiting groove 62, locating slot 63, cramp end are set
Receive slot 64, cramp 7, apparatus for leveling 8, leveling bracket 81, stator laminating structure placement seat 82, flatten tooling 83, upper inner cone tooling
84, smooth cylinder 85, lifting cylinder 86, cramp pressing device 9, idler wheel 91, idler wheel cylinder 92.
Specific embodiment
The embodiment of the present invention is described in further detail below in conjunction with attached drawing.
Taper stator punching cramp stack-press device of the invention, wherein：Including stator punching stack-press device 1, apparatus for leveling 8
And cramp pressing device 9, the ringfeder 2 of gap between them cooperation, lower outer cone tooling are provided on stator punching stack-press device 1
3 and stator punching fixing seat 4, stator punching fixing seat 4 be fixed on 1 center of stator punching stack-press device, stator punching 6
It is placed sequentially in diameter in stator punching fixing seat 4 and is vertically stacked from large to small, lower outer cone tooling 3 is fixed positioned at stator punching
4 periphery of seat, ringfeder 2 are located at lower 3 periphery of outer cone tooling, and ringfeder 2 and lower outer cone tooling 3 can be relative to stator punching fixing seats 4
It slides, ringfeder cylinder 21 is installed on ringfeder 2, ringfeder cylinder 21 can push ringfeder 2 to slide to lower outer cone tooling 3, by lower outer cone work
It fills 3 to squeeze to 4 direction of stator punching fixing seat, is fixed with a trapezoidal plate 5 being vertically arranged in stator punching fixing seat 4, it is trapezoidal
The short end of plate 5 is upper, and under, the gradient of the bevel edge of trapezoidal plate 5 is identical as the gradient of taper stator medial surface at long end, lower outer
Cone tooling 3 is also obliquely installed, and the upper end of lower outer cone tooling 3 is tilted to 4 direction of stator punching fixing seat, and gradient and taper are fixed
The gradient of sub- lateral surface is identical, and the inner ring of stator punching 6 is provided with several inside grooves 61, when stator punching 6 is stacked on stator
When in punching fixing seat 4, the two sides inclined-plane of trapezoidal plate 5 can be inserted into two corresponding inside grooves 61 of stator punching 6, lower outer cone
The inside of tooling 3 is provided with one of vertical limit convex 31, and the outer ring of stator punching 6 is provided with a limiting groove 62, instantly outer
When boring tooling 3 close to stator punching fixing seat 4, limit convex 31 is caught in limiting groove 62, and trapezoidal plate 5 and limit convex 31 are made jointly
With rotating stator punching 6 can not, locating slot 63 be provided on stator punching 6, taper stator punching cramp stack-press device includes
Cramp 7, after several stator punchings stack to form taper stator, the locating slot 63 on stator punching 6 is combined into one vertically
The groove body of extension, cramp 7 is caught in the vertically extending groove body, and the top and bottom of cramp 7 are longer than taper stator, leveling
Device 8 includes leveling bracket 81, and the lower part of leveling bracket 81 is provided with stator laminating structure placement seat 82, cramp pressing device 9
The middle part of leveling bracket 81 is set, and leveling 81 top of bracket, which is provided with, flattens tooling 83, flattens and is cased with inner cone outside tooling 83
Tooling 84 flattens tooling 83 and is connected with smooth cylinder 85, and stator punching stack-press device 1 can be placed on stator laminating structure placement seat
On 82, the lower surface for flattening tooling 83 is a flat surface, and the diameter of the inner cavity lower end of upper inner cone tooling 84 is greater than lower outer cone tooling 3
Upper end outer diameter, and it is less than the lower end outer diameter of outer cone tooling 3, it flattens tooling 83 and upper inner cone tooling 84 can pushing away in smooth cylinder 85
It is pressed on stator punching stack-press device 1 under dynamic, and the upper surface for flattening tooling 83 is pressed in taper stator upper surface, upper inner cone tooling
84 inner cavity is pressed in lower 3 outer surface of outer cone tooling, and during the pushing of upper inner cone tooling 84, lower outer cone tooling 3 is in inner cone work
It fills and is moved in continuing under 84 extruding, contact lower outer cone tooling 3 and squeeze the lateral surface of taper stator, stator laminating structure placement
The lower part of seat 82 is provided with lifting cylinder 86, and stator laminating structure placement seat 82 can be raised to cramp pressing dress by lifting cylinder 86
It sets at 9, cramp pressing device 9 includes the idler wheel 91 and idler wheel cylinder 92 of energy transverse shifting, and idler wheel 91 is in idler wheel cylinder 92
It is traversing under drive, the top and bottom of cramp 7 are bent to the upper and lower surfaces for being attached to taper stator respectively, keep group tapered
The stator punching 6 of stator is fixed together.
In embodiment, lower outer cone tooling 3 includes four arc blocks, and stator punching is arranged in the radians such as this four arc blocks
Around fixing seat 4.
In embodiment, the upper corner rounding off of trapezoidal plate 5.
In embodiment, the upper surface of the stator punching 6 of the top of taper stator and the lowermost of taper stator are fixed
The lower surface of sub- punching 6 is provided with cramp end and accommodates slot 64, and the top and bottom of cramp 7, which are bent, is placed in corresponding button
Piece end accommodates in slot 64.
In embodiment, the quantity of ringfeder cylinder 21 is four.
The application method of taper stator punching cramp stack-press device of the invention is as follows：By the stator punching 6 of dispersion by straight
Diameter is descending to be sequentially placed into stator punching fixing seat 4, guarantees that each stator punching 6 is covered with same angle in trapezoidal plate 5
On, the outside of stator punching 6 is provided with limiting groove 62, and the stator punching 6 being placed in stator punching fixing seat 4 will be aligned
This label of limiting groove 62, after all stator punchings 6 are all put into stator punching fixing seat 4, the promotion of ringfeder cylinder 21 is risen
Set 2 is mobile, so that lower outer cone tooling 3 is shifted to stator punching 6, the limit convex 31 in lower outer cone tooling 3 is caught in the limit of punching outer ring
Groove 62, outer cone tooling 3 and stator punching 6 still have a gap at present for this, since lower outer cone tooling 3 is with four intervals
Arc block composition, as shown in figure 5, therefore cramp can be put into the side of stator punching 6 from the gap of lower outer cone tooling 3
Face, cramp upper and lower ends will grow taper stator 1cm to 1.5cm, put cramp well in the locating slot 63 of stator punching 6, open
Dynamic lifting cylinder 86,6 stack-press device 1 of stator punching is sent at cramp pressing device 9, then starts smooth cylinder 85, makes to press
The upper surface of flat tooling 83 is pressed in taper stator upper surface, and at this pressure, each stator punching 6 tightly fits together, and on
The inner cavity of inner cone tooling 84 is pressed in lower 3 outer surface of outer cone tooling, squeezes lower outer cone tooling 3, lower outer cone tooling 3 is made to be adjacent to stator punching
Piece 6, so that the verticality between smooth stator punching 6, keeps each stator punching 6 perfectly aligned.Start idler wheel cylinder at this time, makes to roll
Wheel protrudes into 6 fixing seat 4 of stator punching from the gap between upper inner cone tooling 84 and lower outer cone tooling 3, by 7 upper end of cramp under
Side pressure equals the upper and lower surfaces in taper stator.Everything is completed under the operation of servo-system, and each parameter has
Memory storage, the consistency after each part processing are very good.
The above is only the preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-described embodiment,
All technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It should be pointed out that for the art
For those of ordinary skill, several improvements and modifications without departing from the principles of the present invention should be regarded as protection of the invention
Range.
Claims (5)
1. taper stator punching cramp stack-press device, it is characterized in that：Including stator punching stack-press device (1), apparatus for leveling (8) with
And cramp pressing device (9), be provided on the stator punching stack-press device (1) gap between them cooperation ringfeder (2),
Lower outer cone tooling (3) and stator punching fixing seat (4), the stator punching fixing seat (4) are fixed on stator punching and laminate
Device (1) center, stator punching (6) are placed sequentially in vertical heap on stator punching fixing seat (4) with diameter from large to small
Folded, lower outer cone tooling (3) is located at stator punching fixing seat (4) periphery, and ringfeder (2) is located at lower outer cone tooling (3) periphery, described
Ringfeder (2) and lower outer cone tooling (3) can be slided relative to stator punching fixing seat (4), are equipped with and rise on the ringfeder (2)
Cover cylinder (21), the ringfeder cylinder (21) can push ringfeder (2) to slide to lower outer cone tooling (3), by lower outer cone tooling (3) to
Stator punching fixing seat (4) direction squeezes, and is fixed with a trapezoidal plate being vertically arranged in the stator punching fixing seat (4)
(5), the short end of trapezoidal plate (5) is upper, and long end is under, the gradient of bevel edge and the inclining for taper stator medial surface of trapezoidal plate (5)
Gradient is identical, and the lower outer cone tooling (3) is also obliquely installed, and the upper end of the lower outer cone tooling (3) is solid to stator punching
The inclination of reservation (4) direction, and gradient is identical as the gradient of taper stator lateral surface, the inner ring of stator punching (6) is provided with
Several inside grooves (61), when stator punching (6) is stacked on stator punching fixing seat (4), the two sides of the trapezoidal plate (5)
Inclined-plane can be inserted into two corresponding inside grooves (61) of stator punching (6), be provided on the inside of the lower outer cone tooling (3)
One of vertical limit convex (31), the outer ring of the stator punching (6) are provided with a limiting groove (62), when described lower outer
When boring tooling (3) close to stator punching fixing seat (4), the limit convex (31) is caught in limiting groove (62), the ladder
Shape plate (5) and limit convex (31) collective effect, rotate stator punching (6) can not, and it is fixed to be provided on the stator punching (6)
Position slot (63), the taper stator punching cramp stack-press device includes cramp (7), to form cone when several stator punchings stack
After shape stator, the locating slot (63) on the stator punching (6) is combined into a vertically extending groove body, the cramp
(7) it is caught in the vertically extending groove body, and the top and bottom of cramp (7) are longer than taper stator, the apparatus for leveling
It (8) include leveling bracket (81), the lower part of the leveling bracket (81) is provided with stator laminating structure placement seat (82), cramp
At the middle part of leveling bracket (81), described leveling bracket (81) lower part, which is provided with, flattens tooling (83) for pressing device (9) setting,
It being cased with inner cone tooling (84) outside the pressing tooling (83), the pressing tooling (83) is connected with smooth cylinder (85),
The stator punching stack-press device (1) can be placed on stator laminating structure placement seat (82), the pressing tooling (83)
Lower surface be a flat surface, the diameter of the inner cavity lower end of upper inner cone tooling (84) is greater than the upper end outer diameter of lower outer cone tooling (3), and
Less than the lower end outer diameter of outer cone tooling (3), the pressing tooling (83) and upper inner cone tooling (84) can be in smooth cylinder (85)
Promotion under be pressed on stator punching stack-press device (1), and flatten tooling (83) upper surface be pressed in taper stator upper surface, institute
The inner cavity for the upper inner cone tooling (84) stated is pressed in lower outer cone tooling (3) outer surface, during the pushing of upper inner cone tooling (84),
Lower outer cone tooling (3) is moved in continuing under the extruding of inner cone tooling (84), is contacted lower outer cone tooling (3) and is squeezed taper stator
Lateral surface, the lower part of the stator laminating structure placement seat (82) be provided with lifting cylinder (86), the lifting cylinder
(86) stator laminating structure placement seat (82) can be raised at cramp pressing device (9), cramp pressing device (9) packet
The idler wheel (91) and idler wheel cylinder (92) of energy transverse shifting are included, the idler wheel (91) is horizontal under the drive of idler wheel cylinder (92)
It moves, the top and bottom of cramp (7) is bent to the upper and lower surfaces for being attached to taper stator respectively, make to form taper stator
Stator punching (6) is fixed together.
2. taper stator punching cramp stack-press device according to claim 1, it is characterized in that：The lower outer cone tooling
(3) include four arc blocks, be arranged in the radians such as this four arc blocks around stator punching fixing seat (4).
3. taper stator punching cramp stack-press device according to claim 2, it is characterized in that：The trapezoidal plate (5)
Upper corner rounding off.
4. taper stator punching cramp stack-press device according to claim 3, it is characterized in that：The top of taper stator
The lower surface of the lowermost stator punching (6) of the upper surface and taper stator of stator punching (6) is provided with cramp end
It accommodates slot (64), the top and bottom of the cramp (7), which are bent, to be placed in corresponding cramp end and accommodate in slot (64).
5. taper stator punching cramp stack-press device according to claim 4, it is characterized in that：The ringfeder cylinder (21)
Quantity be four.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611155648.1A CN106533079B (en) | 2016-12-14 | 2016-12-14 | Taper stator punching cramp stack-press device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611155648.1A CN106533079B (en) | 2016-12-14 | 2016-12-14 | Taper stator punching cramp stack-press device |
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| Publication Number | Publication Date |
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| CN106533079A CN106533079A (en) | 2017-03-22 |
| CN106533079B true CN106533079B (en) | 2018-11-16 |
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| CN201611155648.1A Active CN106533079B (en) | 2016-12-14 | 2016-12-14 | Taper stator punching cramp stack-press device |
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| CN107968534B (en) * | 2017-12-15 | 2023-09-15 | 卧龙电气驱动集团股份有限公司 | Stator laminating die with full notch positioning function |
| CN109510411B (en) * | 2018-12-29 | 2023-12-19 | 恒速控股有限公司 | Motor inner stator forming equipment |
| CN111805206A (en) * | 2020-07-17 | 2020-10-23 | 盐城海荣炉业科技有限公司 | Oil cooler assembly machine and assembly method |
| CN111725958B (en) * | 2020-07-28 | 2021-04-09 | 浙江沪龙科技股份有限公司 | Motor stator lamination processing pre-tightening device |
| CN111953159B (en) * | 2020-08-14 | 2021-08-17 | 浙江震环数控机床股份有限公司 | Conical motor casing processing equipment and using method thereof |
| CN114629309B (en) * | 2022-03-15 | 2024-01-12 | 苏州御龙精密科技有限公司 | Silicon steel sheet laminating device and stator torsion slot iron core silicon steel sheet laminating method |
| CN114679017B (en) * | 2022-04-25 | 2022-09-30 | 荣成恒鑫动力科技股份有限公司 | Adjustable positioning and laminating device for motor punching sheet |
| CN115173648B (en) * | 2022-08-04 | 2022-12-13 | 荣成恒鑫动力科技股份有限公司 | Adjustable laminating and fastening equipment for motor punching sheet |
| CN115940535B (en) * | 2022-11-29 | 2023-11-24 | 无锡市亨达电机有限公司 | Adjustable rotor punching assembling equipment |
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| CN102142744A (en) * | 2011-01-07 | 2011-08-03 | 山东齐鲁电机制造有限公司 | Dividing die for punching slot for motor stator whole-circle punching sheet |
| CN102142744B (en) * | 2011-01-07 | 2013-06-19 | 山东齐鲁电机制造有限公司 | Dividing die for punching slot for motor stator whole-circle punching sheet |
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| CN106533079A (en) | 2017-03-22 |
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Effective date of registration: 20220105 Address after: 241000 No. 8, Vientiane Road, Jiujiang District, Wuhu City, Anhui Province Patentee after: Anhui gold foil Electromechanical Industry Group Co.,Ltd. Address before: No.98, Dongshan Town Street East Road, Jiangning District, Nanjing City, Jiangsu Province Patentee before: NANJING HOISTING MOTOR GENERAL FACTORY |