CN104242568B - Universal type rotor core overlaying tool and method - Google Patents
Universal type rotor core overlaying tool and method Download PDFInfo
- Publication number
- CN104242568B CN104242568B CN201410450318.XA CN201410450318A CN104242568B CN 104242568 B CN104242568 B CN 104242568B CN 201410450318 A CN201410450318 A CN 201410450318A CN 104242568 B CN104242568 B CN 104242568B
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- rotor
- base
- compression leg
- mandrel
- iron core
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- 238000000034 method Methods 0.000 title claims abstract description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 40
- 238000003825 pressing Methods 0.000 claims abstract description 13
- 230000006835 compression Effects 0.000 claims description 53
- 238000007906 compression Methods 0.000 claims description 53
- 238000010030 laminating Methods 0.000 claims description 5
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 230000002153 concerted effect Effects 0.000 claims description 2
- 238000009826 distribution Methods 0.000 claims description 2
- 238000003466 welding Methods 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 238000003475 lamination Methods 0.000 abstract description 3
- 229910052742 iron Inorganic materials 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000010923 batch production Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000013507 mapping Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
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- Manufacture Of Motors, Generators (AREA)
Abstract
The invention discloses a universal type rotor core overlaying tool which comprises a platen, a base and a mandrel. The mandrel is sleeved with rotor cores in an overlaid mode. The rotor cores are located between the platen and the base, and core laminations are overlaid through the platen and the base jointly. The universal type rotor core overlaying tool is characterized in that a plurality of pressing columns are connected with the lower portion of the platen and are evenly and annularly distributed at intervals, and the platen drives the pressing columns to enable the iron laminations to be overlaid. According to the universal type rotor core overlaying tool, the pressing column structure is adopted, and radial clearances exist between the pressing columns; compared with a traditional closed overlaying tool, rotor core end fixing keys can be installed when the rotor cores are compressed, the influences of the oil press stroke on rotor core overlaying specifications can be lowered, the security coefficients in the rotor core overlaying process are increased, working procedure tome is shortened, and production efficiency is improved by about 30%.
Description
Technical field
The present invention relates to rotor iron core laminated technical field, specially a kind of universal rotor iron core laminated frock and laminate
Method.
Background technology
The motor producer of domestic production rotor, the work that laminates of many rotor cores is carried out on motor shaft.In order to
The stacking factor of rotor core is reached, sealing sleeve, closed circle support or the column of correspondence motor model specification is generally made
Steel, then compressed iron core by hydraulic press.This several laminating tool generally has following defect：
1st, rotor core end retainingf key can be just put into after sealing sleeve need to be removed, now rotor core is not stressed,
Iron core is preferably loose；
2nd, the frock of enclosed construction necessarily be greater than and rotor core can be just laminated after the end face of motor shaft, on the one hand easily by oil
The travel limit of press, on the other hand increased the impulse stroke of hydraulic press, so as to increased rotor iron core laminated operation when
Between, reduce production efficiency；
3rd, directly using column steel pressure rotor core, needs are artificial fixed in advance, and place one by one, remove, so as to increase
The time of rotor iron core laminated operation is added, has reduced production efficiency, while reducing the safety coefficient during manufacturing.
The content of the invention
During in order to ensure rotor iron core laminated, by install in the case of hydraulic press pressure rotor core end retainingf key,
Reduce impact of the hydraulic press stroke to rotor iron core laminated specification, increase it is rotor iron core laminated during safety coefficient, and subtract
Few activity time, improve production efficiency.The present invention devises a kind of new rotor iron core laminated frock, has reached expected mesh
, while also a saving cost.
Concrete technical scheme is as follows：
A kind of universal rotor iron core laminated frock, it is rotor iron core laminated to be sleeved on mandrel including presenting a theatrical performance as the last item on a programme, base, mandrel
On, rotor core is located at and presents a theatrical performance as the last item on a programme between base, presents a theatrical performance as the last item on a programme and makes a concerted effort to laminate core stamping with base, it is characterised in that：Present a theatrical performance as the last item on a programme bottom
Connection compression leg, some compression leg annulars are uniform, have gap between each compression leg, and driving compression leg of presenting a theatrical performance as the last item on a programme laminates core stamping.
Preferably, compression leg top is provided with the boss of increase compression area.
Preferably, to present a theatrical performance as the last item on a programme and be provided with waist hole with compression leg junction, compression leg is connected with presenting a theatrical performance as the last item on a programme by fixing bolt.
Preferably, rotor core upper and lower ends face is arranged respectively rotor pressing ring, and compression leg pressure is born in upper rotor part trim ring upper surface
Power, lower rotor part trim ring lower surface connect base.
Preferably, upper rotor part trim ring upper surface is in close contact with rotor core end retainingf key, and rotor core end is fixed
Key mapping is fixed in keyway set by mandrel with mandrel and rotor pressing ring spot welding.
Preferably, base rebound is provided between lower rotor part trim ring and base, base rebound center has annular groove,
Lower rotor part trim ring lower surface is located in groove, and lower rotor part trim ring height is concordant with base rebound.
Preferably, base rebound one end is provided with male half coupling, is fixed on base and is threadedly coupled by the seam, another
End is provided with inner stopper, and lower rotor part trim ring and rotor core are fixed, and mandrel bottom surface is in close contact with base.
Preferably, compression leg quantity is four, annular array, in cross distribution, each compression leg axis and mandrel axis spacing phase
Together.
The universal rotor iron core laminated frock of the present invention, using compression leg structure, has radial clearance, with biography between each compression leg
The closed laminating tool of system is compared, and rotor core end retainingf key can be installed under rotor core impaction state, oil pressure is reduced
Impact of the machine stroke to rotor iron core laminated specification, increase it is rotor iron core laminated during safety coefficient, and when reducing operation
Between, improve production efficiency about 30%.
Meanwhile, compression leg is installed with presenting a theatrical performance as the last item on a programme using waist hole, can adjust mutual distance according to the specification of different rotor, increases work
The versatility of dress, reduces the multiple frocks of manufacture, reduces motor manufacturing cost；In addition compression leg top has boss, increases pressurized
Area, improves intensity, and stress is evenly, it is ensured that laminate quality.
Additionally, base rebound one end is provided with male half coupling, it is fixed on base and is threadedly coupled by the seam, the other end
Inner stopper is provided with, lower rotor part trim ring and rotor core are fixed, mandrel bottom surface is in close contact with base.Compact conformation safety, and
Install simple and convenient, it is practical.
The laminating method of above-mentioned universal rotor iron core laminated frock, comprises the steps：
1st, base rebound is connected with base by seam, mandrel falls in base bottom directly through base rebound；
2nd, lower rotor part trim ring is inserted in into mandrel to fall in sequence base rebound groove, core stamping is then set with successively, it is complete
Into the assembling of rotor core, then upper rotor part trim ring is arranged on into rotor core upper surface；
3rd, uniform compression leg is arranged on bottom of presenting a theatrical performance as the last item on a programme by fixing bolt, and mandrel passes perpendicularly through the gap between compression leg, nothing
Compression leg need to be risen to mandrel upper surface, substantially reduce the working hour of hydraulic press, improve production efficiency, compression leg with upper turn
Sub- trim ring directly contact, will be rotor iron core laminated by the pressure of hydraulic press, and when reaching rational position, compression leg keeps pressure shape
State, while rotor core end retainingf key is installed by each compression leg gap, by rotor core end retainingf key and mandrel, upper rotor part
Trim ring point is welded, and installing rotor core end retainingf key additional in the state of rotor core is by pretightning force can ensure that rotor core is folded
Pressure coefficient, substantially increases rotor iron core laminated quality level.
In course of exerting pressure, rotor pressing ring, rotor core and base rebound are fully contacted, and make rotor pressing ring, rotor core
The pressure that is subject to is uniform, directly avoids the teeth portion that core stamping causes because of unbalance stress and flicks, and improves rotor core and folds
The quality level of pressure.
For the motor of batch production, suitable compression leg distance only need to be disposably regulated, unclamp hydraulic press,
Base and tool part thereon only need to be removed just be capable of achieving quick-replaceable part, very big to improve motor rotor core and laminate
Work efficiency.
Description of the drawings
Fig. 1 is rotor core mounting structure schematic diagram in embodiment；
Fig. 2 is the integrated tooling structural representation of embodiment；
Fig. 3 is to present a theatrical performance as the last item on a programme and compression leg stationary plane structural representation in embodiment.
In figure：1- mandrels；2- rotor cores end retainingf key；3- upper rotor part trim rings；4- rotor cores；5- rotor cores
Key；6- presents a theatrical performance as the last item on a programme；7- fixing bolts；8- compression legs；9- lower rotor part trim rings；10- base rebounds；11- bases；12- waist holes；13- is convex
Platform.
Specific embodiment
The present invention is described further with reference to non-limiting example.
As shown in the figure：The universal rotor iron core laminated frock of the present invention includes press member, pressure-containing member, mandrel 1
Between press member and pressure-containing member, the fixed rotor iron core 4 of rotor core key 5 is passed through on mandrel 1；Press member includes presenting a theatrical performance as the last item on a programme
6th, compression leg 8, present a theatrical performance as the last item on a programme 6 is connected with compression leg 8 by waist hole 12, fixing bolt 7, and the top of compression leg 8 has boss 13；Pressure-containing member includes
Rotor pressing ring is installed in base 11, base rebound 10, upper rotor part trim ring 3, lower rotor part trim ring 9, the upper and lower end face of rotor core 4, on
The rotor core end retainingf key 2 installed above of rotor pressing ring 3, lower rotor part trim ring 9 is located in the groove of base rebound 10, base mistake
Cab apron 10 is connected and screw threads for fastening with the seam of base plate 11.
Base 11 is cylindrical component, is placed directly within the underface of oil pressure compressing head；The one end of base rebound 10 is provided with outer
Seam, can be directly anchored on base 11 by the seam, and the other end is provided with groove, and lower rotor part trim ring 9 and rotor core 4 are consolidated
It is fixed；Compression leg 8 is provided with boss 13 to increase lifting surface area, improves intensity, while being provided with spanner groove, facilitates compression leg 8 to fasten, the pressure
Post 8 is fixed on by fixing bolt 7 presents a theatrical performance as the last item on a programme on 6；6 one end of presenting a theatrical performance as the last item on a programme are provided with through hole and fix with oil pressure compressing head, and the other end is provided with waist
Hole 12 connects compression leg 8, while mutual distance can be adjusted according to the specification of different rotor iron core 4, by fixing bolt 7 pressure is fixed on
On platform 6.
Concrete operation method is as follows：
1st, as shown in Fig. 2 base rebound 10 is connected with base 11 by seam, mandrel 1 is directly through base rebound
10 and base 11, fall in the bottom of base 11；
2nd, lower rotor part trim ring 9 is inserted in after mandrel 1 and directly falls in the groove of base rebound 10, and folded iron core is just started afterwards
Punching, core stamping is inserted in upper rotor part trim ring 3 after having folded；
3rd, because 4 compression legs 8 are uniform and be fixed on by fixing bolt 7 and to present a theatrical performance as the last item on a programme on 6, Gu mandrel 1 can be directly through compression leg 8
Between gap, the upper surface without the need for compression leg 8 to be risen to mandrel 1 substantially reduces the working hour of hydraulic press, improves life
Produce efficiency.Compression leg 8 and the directly contact of upper rotor part trim ring 3, are laminated rotor core 4 by the pressure of hydraulic press, reach reasonable position
When putting, compression leg 8 keeps pressurized state, while rotor core end retainingf key 2 is added in the intermediate gaps of each compression leg 8, by rotor ferrum
Core end retainingf key 2 is welded with mandrel 1,3 points of upper rotor part trim ring, and in the state of rotor core 4 receives pretightning force cartridge rotor ferrum is added
Core end retainingf key 2 can ensure the stacking factor of rotor core 4, substantially increase rotor iron core laminated quality.
4th, in course of exerting pressure, rotor pressing ring, laminated core 4 are fully contacted with base rebound 10, make rotor pressing ring, lamination
Pressure that iron core 4 is subject to is uniform, directly avoids the teeth portion that core stamping causes because of unbalance stress and flicks, and improves and laminates matter
Amount.
5th, for the motor of batch production, suitable compression leg 8 only need to disposably be regulated apart from release oil pressure
Tool part on machine, base 11 and base 11 only need to be removed just be capable of achieving quick-replaceable part, very big to improve motor and turn
The work efficiency of sub- iron core laminated.
The above, is only presently preferred embodiments of the present invention, and any pro forma restriction is not made to the present invention, is appointed
What those skilled in the art, in the range of without departing from technical solution of the present invention, when in the technology using the disclosure above
Appearance makes a little change or is modified to the Equivalent embodiments of equivalent variations, as long as be without departing from technical solution of the present invention content, according to
According to the technical spirit of the present invention, within the spirit and principles in the present invention, any simple modification that above example is made,
Equivalent and improvement etc., still fall within the protection domain of technical solution of the present invention.
Claims (7)
1. a kind of universal rotor iron core laminated frock, it is rotor iron core laminated to be sleeved on mandrel including presenting a theatrical performance as the last item on a programme, base, mandrel,
Rotor core is located at and presents a theatrical performance as the last item on a programme between base, presents a theatrical performance as the last item on a programme and makes a concerted effort to laminate core stamping with base, it is characterised in that：Present a theatrical performance as the last item on a programme bottom connection
Compression leg, some compression leg annulars are uniform, have gap between each compression leg, and driving compression leg of presenting a theatrical performance as the last item on a programme laminates core stamping；
Rotor core upper and lower ends face is arranged respectively rotor pressing ring, and compression leg pressure, lower rotor part pressure are born in upper rotor part trim ring upper surface
Circle lower surface connect base；Add rotor core end retainingf key in each compression leg intermediate gaps, upper rotor part trim ring upper surface with turn
Sub- core ends retainingf key is in close contact, and rotor core end retainingf key is located in keyway set by mandrel, with mandrel and rotor pressure
Solid welding of punctuating is determined.
2. universal rotor iron core laminated frock according to claim 1, it is characterised in that：Compression leg top is provided with increase and receives
The boss of pressure surface product.
3. universal rotor iron core laminated frock according to claim 1, it is characterised in that：Present a theatrical performance as the last item on a programme and set with compression leg junction
There is waist hole, compression leg is connected with presenting a theatrical performance as the last item on a programme by fixing bolt.
4. universal rotor iron core laminated frock according to claim 1, it is characterised in that：Lower rotor part trim ring and base it
Between be provided with base rebound, base rebound center has annular groove, and lower rotor part trim ring lower surface is located in groove, lower rotor part
Trim ring height is concordant with base rebound.
5. universal rotor iron core laminated frock according to claim 4, it is characterised in that：Base rebound one end is provided with
Male half coupling, is fixed on base and is threadedly coupled by the seam, and the other end is provided with groove, by lower rotor part trim ring and rotor core
Fixed, mandrel bottom surface is in close contact with base.
6. universal rotor iron core laminated frock according to claim 1, it is characterised in that：Compression leg quantity is four, ring
Shape array, in cross distribution, each compression leg axis is identical with mandrel axis spacing.
7. a kind of laminating method of the universal rotor iron core laminated frock according to any one of claim 1-6, including such as
Lower step：
A, base rebound is connected with base by seam, mandrel falls in base bottom directly through base rebound；
B, lower rotor part trim ring is inserted in after mandrel in the groove for directly falling in base rebound, core stamping is then set with successively,
The assembling of rotor core is completed, then upper rotor part trim ring is arranged on into rotor core upper surface；
C, uniform compression leg are arranged on by fixing bolt and are presented a theatrical performance as the last item on a programme bottom, and mandrel passes perpendicularly through the gap between compression leg, compression leg with
Upper rotor part trim ring directly contact, will be rotor iron core laminated by the pressure of hydraulic press, and when reaching rational position, compression leg keeps pressure
State, while installing rotor core end retainingf key by each compression leg gap, by rotor core end retainingf key and mandrel, above turns
Sub- trim ring point is welded；
D, it is rotor iron core laminated after the completion of, unclamp hydraulic press, remove the tool part on base and base, circulate above-mentioned steps reality
The existing rotor iron core laminated operation of batch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410450318.XA CN104242568B (en) | 2014-09-04 | 2014-09-04 | Universal type rotor core overlaying tool and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410450318.XA CN104242568B (en) | 2014-09-04 | 2014-09-04 | Universal type rotor core overlaying tool and method |
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| Publication Number | Publication Date |
|---|---|
| CN104242568A CN104242568A (en) | 2014-12-24 |
| CN104242568B true CN104242568B (en) | 2017-05-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410450318.XA Active CN104242568B (en) | 2014-09-04 | 2014-09-04 | Universal type rotor core overlaying tool and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106891109A (en) * | 2015-12-21 | 2017-06-27 | 贵阳航空电机有限公司 | Laminated type stator core assemblies weld shedder |
| CN105449949A (en) * | 2016-01-15 | 2016-03-30 | 甘肃尚德电机股份有限公司 | An asynchronous motor rotor core lamination method |
| CN106533079B (en) * | 2016-12-14 | 2018-11-16 | 南京起重电机总厂 | Taper stator punching cramp stack-press device |
| CN106899150B (en) * | 2017-04-07 | 2023-05-12 | 福建永强力加动力设备有限公司 | Exciter rotor core lamination tooling structure |
| CN111682722B (en) * | 2020-06-15 | 2021-10-15 | 常州金康精工机械股份有限公司 | Twisted chute device of stator |
| DE102021111191B4 (en) * | 2021-04-30 | 2023-02-02 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Joining tool for pressing a disk with a shaft and rotor shaft for an electrical machine |
| CN113644766B (en) * | 2021-07-26 | 2022-06-14 | 无锡市亨达电机有限公司 | Novel structure for synchronous staggered-pole rotor lamination |
| CN113595341B (en) * | 2021-08-13 | 2022-07-01 | 无锡市亨达电机有限公司 | Adjustable hydraulic rotor pressure-superposed tool |
| CN119696274B (en) * | 2024-12-13 | 2025-11-14 | 中船电机科技股份有限公司 | A general long-shaft rotor core stacking fixture and stacking method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201307815Y (en) * | 2008-12-05 | 2009-09-09 | 广东明珠集团韶关众力发电设备有限公司 | A press-fit tool for motor stator iron core |
| CN202679174U (en) * | 2012-08-09 | 2013-01-16 | 杭州新恒力电机制造有限公司 | Oil press for compressing lamination |
| CN103475168A (en) * | 2012-06-06 | 2013-12-25 | 北京三一电机系统有限责任公司 | Press-fitting tool and press-fitting method |
| CN204068598U (en) * | 2014-09-04 | 2014-12-31 | 南京起重电机总厂 | Universal rotor iron core laminated frock |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4428977B2 (en) * | 2003-09-26 | 2010-03-10 | 株式会社三井ハイテック | Multilayer mold equipment |
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2014
- 2014-09-04 CN CN201410450318.XA patent/CN104242568B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201307815Y (en) * | 2008-12-05 | 2009-09-09 | 广东明珠集团韶关众力发电设备有限公司 | A press-fit tool for motor stator iron core |
| CN103475168A (en) * | 2012-06-06 | 2013-12-25 | 北京三一电机系统有限责任公司 | Press-fitting tool and press-fitting method |
| CN202679174U (en) * | 2012-08-09 | 2013-01-16 | 杭州新恒力电机制造有限公司 | Oil press for compressing lamination |
| CN204068598U (en) * | 2014-09-04 | 2014-12-31 | 南京起重电机总厂 | Universal rotor iron core laminated frock |
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| Publication number | Publication date |
|---|---|
| CN104242568A (en) | 2014-12-24 |
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Address after: 211100 Dongshan Street East Road, Jiangning District, Nanjing City, Jiangsu Province, No. 98 Patentee after: NANJING HOISTING MOTOR GENERAL FACTORY Address before: Corning road in Jiangning District of Nanjing City, Jiangsu Province, No. 268 211100 Patentee before: NANJING HOISTING MOTOR GENERAL FACTORY |
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Effective date of registration: 20220107 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 |