CN102005869B - Blank pressing process used in punching rotor slot on motor stator plate and key mold thereof - Google Patents
Blank pressing process used in punching rotor slot on motor stator plate and key mold thereof Download PDFInfo
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- CN102005869B CN102005869B CN 201010589674 CN201010589674A CN102005869B CN 102005869 B CN102005869 B CN 102005869B CN 201010589674 CN201010589674 CN 201010589674 CN 201010589674 A CN201010589674 A CN 201010589674A CN 102005869 B CN102005869 B CN 102005869B
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Abstract
The invention provides a blank pressing process used in punching a rotor slot on a motor stator plate and a key mold thereof. The pressing process comprises the following steps: 1) punching a rotor slot, a rotor axle hole and a stator excircle once again; and 2) independently punching a stator slot and separating a rotor plate. The key mold comprises an upper mold part, a lower mold part and a guiding part, wherein the upper mold part comprises an upper cutting edge provided with a rotor slot punch, an axle hole male die, a key slot punch, a stator excircle female die and a cramp slot punch, the upper cutting edge is fixedly arranged on an upper fixed plate, and the arrangement position and the size of the upper cutting edge correspond to those of the rotor slot, the axle hole, the key groove, the stator excircle, the cramp slot and an outer tag slot which are required to be punched; and the lower mold part comprises a lower cutting edge corresponding to the upper cutting edge. By the invention, only two steps are required to obtain the finished product, which is one step less than the prior art, thus improving the punching efficiency and enhancing the quality of the stator plate and the rotor plate. As for large batch production of a certain motor, the effect is extremely obvious.
Description
Technical field
The present invention relates to the motor manufacturing technology field, especially a kind of electric machine rotor sheet red switch pilot trench blanking Sheet Metal Forming Technology and crucial mould thereof.
Background technology
Stator and rotor are the core components of motor, be to utilize mould that whole plate carried out punching press, obtain stator piece and rotor sheet after, laminate composition respectively.The punching press of motor stator slice and the rotor sheet operation that is absolutely necessary is occupied sizable ratio the man-hour that stamping procedure takies in motor cost, during batch process, suitable process for stamping directly affects production efficiency and production cost.
Prior motor stator piece and rotor sheet Sheet Metal Forming Technology, its punch steps is:
1. rotor blank blanking: stamp out circle (rotor cylindrical) and rotor shaft hatch in stator cylindrical, the stator;
2. multiple towards stator slot: with circle location in the stator, punching press stator slot, stator cramp groove and stator external labeling groove;
3. answer the red switch pilot trench: with circle location in the axis hole, stamping rotor groove and rotor keyway.
With this processing technology punching press stator piece and rotor sheet, procedure arrangement is comparatively concentrated, and three steps just can obtain final stator piece and rotor sheet.But in process of production, step is the rotor blank that obtains of blanking 1.; After removing from mould, at random being deposited in around the punch press, the scuffing of not only colliding with; And carrying out punch steps is 2. multiple, also will carry out go-on-go and pile up the rotor blank again 3. again before the red switch pilot trench towards stator slot, step, increased workload; The phenomenon that the rotor blank is not placed by identical pressing direction often appears, cause postorder punching press flute profile after, the burr direction is inconsistent; Stacking factor is exerted an influence, finally influence efficiency of motor and performance.
Summary of the invention
The purpose of this invention is to provide a kind of stamping procedure is few, ram efficiency is high electric machine rotor sheet red switch pilot trench blanking Sheet Metal Forming Technology and crucial mould thereof.
For realizing above-mentioned purpose, the technical scheme that the present invention takes is:
A kind of electric machine rotor sheet red switch pilot trench blanking Sheet Metal Forming Technology may further comprise the steps:
1. answer red switch pilot trench, rotor shaft hatch and stator cylindrical: stamping rotor groove, rotor keyway and rotor shaft hatch, the stator of punching press simultaneously cylindrical, stator cramp groove and stator external labeling groove;
2. the one-shot stator slot is held concurrently and separated the rotor sheet: with rotor shaft hatch and rotor keyway location, the one-shot stator slot is held concurrently and is separated stator piece and rotor sheet.
Step 1. in, the rotor notch of institute's punching press radially exceeds cutting back rotor cylindrical 0.1 mm～0.2 mm in the future, handle when processing rotor iron core cylindrical is cut the air gap operation afterwards rotor oral area position.
In order to cooperate the enforcement of electric machine rotor sheet red switch pilot trench blanking Sheet Metal Forming Technology of the present invention, manufactured and designed corresponding crucial mould.
A kind of crucial mould of realizing above-mentioned electric machine rotor sheet red switch pilot trench blanking Sheet Metal Forming Technology; Form by part of the upper die, part of the lower die and targeting part; The part of the upper die comprises the last cutting edge that is provided with rotor shaft hatch punch and the outer cupping tool of stator; Last cutting edge is installed on the upper mounted plate, it is characterized in that: the described cutting edge of going up also comprises rotor drift, rotor keyway drift and stator cramp groove drift, stator external labeling groove drift; The position and the size of rotor, rotor shaft hatch, rotor keyway and the stator cylindrical of the position that last cutting edge is laid, size and required punching press, stator cramp groove, stator external labeling groove are corresponding; The part of the lower die comprises the following cutting edge corresponding with last cutting edge.
Described rotor drift, its notch size radially exceed cutting back rotor cylindrical correspondingly-sized 0.1 mm～0.2 mm in the future.
Described rotor drift adopts interference fit, expanded metal is fixed or bonding mode is installed on the upper mounted plate.
Described rotor keyway drift is fixedly connected with the rotor shaft hatch punch with the inserts form.
Described stator cramp groove drift is embedded on the outer cupping tool of stator with the inserts form, and inserts built-in end the latter half is fixedly connected with the outer cupping tool of stator, and built-in end the first half is fixedly connected with upper mounted plate simultaneously.
Described stator external labeling groove drift; Gather together with a stator cramp groove drift; Be embedded on the outer cupping tool of stator with the inserts form, inserts built-in end the latter half is fixedly connected with the outer cupping tool of stator, and built-in end the first half is fixedly connected with upper mounted plate simultaneously.
Above-mentioned electric machine rotor sheet red switch pilot trench blanking Sheet Metal Forming Technology provided by the invention and crucial mould thereof; Since with the function setting of the function of stamping rotor groove, rotor keyway and stator cramp groove, stator external labeling groove and stamping rotor axis hole, stator cylindrical on a mold; Only need two steps just can obtain finished product; Not only reduced by a step than prior art; And saved the rotor blank and carried out go-on-go and the time of piling up again, improved ram efficiency, improved the quality of stator piece and rotor sheet.During batch process, effect is particularly evident.
Description of drawings
Fig. 1: the structural representation of the crucial mould of the present invention;
Fig. 2: the counterdie vertical view of the crucial mould of the present invention.
Among the figure: the outer cupping tool of 1-stator, 1 '-stator cylindrical punch cutting edge, 2-stator cramp groove drift, 2 '-stator cramp groove counterdie cutting edge; 3-stator external labeling groove drift, 3 '-stator external labeling groove counterdie cutting edge, 4-rotor drift; 4 '-rotor counterdie cutting edge, 5-rotor shaft hatch punch, 5 '-rotor shaft hatch cutting edge of die; 6-rotor keyway drift, 6 '-rotor keyway counterdie cutting edge, 7-upper mounted plate.
Embodiment
Electric machine rotor sheet red switch pilot trench blanking Sheet Metal Forming Technology provided by the invention may further comprise the steps:
1. answer red switch pilot trench, rotor shaft hatch and stator cylindrical: on punch press, stamping rotor groove, rotor keyway and rotor shaft hatch, the stator of punching press simultaneously cylindrical, stator cramp groove and stator external labeling groove obtain the rotor blank;
2. the one-shot stator slot is held concurrently and separated the rotor sheet: on single scouring machine, with rotor shaft hatch and rotor keyway location, the punching press stator slot is held concurrently and is separated the rotor sheet, obtains stator piece and rotor sheet with the rotor blank.
The rotor sheet of motor will form cast-aluminum rotor after laminating, when cast aluminium, because the rotor notch is open, must wrap in the outside of iron core with middle mould; Owing at high temperature work for a long time, after use a period of time, the phenomenon of leaking aluminium is very serious; Even slice, disconnected bar phenomenon appear, this situation gently then influences motor properties, does not reach designing requirement; Heavy then scrap, cause serious waste.
Adopt above-mentioned electric machine rotor sheet red switch pilot trench blanking Sheet Metal Forming Technology provided by the invention, step 1. in, the rotor notch of institute's punching press radially exceeds cutting back rotor cylindrical 0.1 mm～0.2 mm in the future; Like this; 2. after the one-shot stator slot hold concurrently to separate the rotor sheet, the rotor notch sealed in step, and this has very big benefit for the cast aluminium of postorder; Can avoid leak aluminium phenomenon to a great extent, improve the effect of cast aluminium.In addition, whether when air gap is cut at processing rotor iron core cylindrical in rotor notch position, can also be used to observation has cast aluminium slice, disconnected bar phenomenon.
Above-mentioned electric machine rotor sheet red switch pilot trench blanking Sheet Metal Forming Technology provided by the invention has reduced by a punch steps, has correspondingly reduced the holding time of big punch press; Reduced the quantity of big punching machine mold; Intermediate link reduces, and cumulative errors are little, are convenient to the production smoothing and the management of factory.In addition, production cycle of rotor sheet has been shortened in the minimizing of punch steps, has reduced the carrying number of times in the course of processing, has saved the rotor blank and has carried out go-on-go and the time of piling up again, has reduced labour intensity.Because this two steps are punching presses successively, it is inconsistent and influence the problem of electric machine iron core stacking factor the punching press burr can not occur, and go-on-go is piled up more specially, has improved ram efficiency.
In order to cooperate the enforcement of electric machine rotor sheet red switch pilot trench blanking Sheet Metal Forming Technology of the present invention, manufactured and designed corresponding crucial mould.
Like Fig. 1, as shown in Figure 2, among the embodiment of the crucial mould of the above-mentioned electric machine rotor sheet of realization provided by the invention red switch pilot trench blanking Sheet Metal Forming Technology, this mould comprises part of the upper die, part of the lower die and targeting part, wherein:
The part of the upper die comprises cutting edge, and last cutting edge is installed on the upper mounted plate 7, and last cutting edge comprises the outer cupping tool 1 of rotor drift 4, rotor shaft hatch punch 5, rotor keyway drift 6 and stator, stator cramp groove drift 2, stator external labeling groove drift 3.Rotor drift 4 adopts interference fit, expanded metal is fixed or bonding mode is installed in (shown in Figure 1 is the expanded metal fixed form) on the upper mounted plate 7.The notch size of rotor drift 4 radially exceeds corresponding 0.1 mm of cutting back rotor cylindrical～0.2 mm in the future.Rotor keyway drift 6 is fixedly connected with rotor shaft hatch punch 5 with the inserts form.Eight stator cramp groove drifts 2 are embedded on the outer cupping tool 1 of stator with the inserts form, and inserts built-in end the latter half is fixedly connected with the outer cupping tool 1 of stator, and built-in end the first half is fixedly connected with upper mounted plate 7 simultaneously.A stator external labeling groove drift 3; Gather together with a stator cramp groove drift; Be embedded on the outer cupping tool 1 of stator with the inserts form, inserts built-in end the latter half is fixedly connected with the outer cupping tool 1 of stator, and built-in end the first half is fixedly connected with upper mounted plate 7 simultaneously.
The position and the size of rotor, rotor shaft hatch, rotor keyway and the stator cylindrical of the position that cutting edge is laid on the part of the upper die, size and required punching press, stator cramp groove, stator external labeling groove are corresponding.
The part of the lower die comprises the following cutting edge corresponding with last cutting edge, i.e. rotor counterdie cutting edge 4 ', rotor shaft hatch cutting edge of die 5 ', rotor keyway counterdie cutting edge 6 ' and stator cylindrical punch cutting edge 1 ', stator cramp groove counterdie cutting edge 2 ', stator external labeling groove counterdie cutting edge 3 '.
Outer cupping tool of stator and stator cylindrical punch are the piece structures, are convenient to processing, save material.
The crucial mould use of the above-mentioned electric machine rotor sheet of realization provided by the invention red switch pilot trench blanking Sheet Metal Forming Technology is following:
Prepare plate (silicon steel sheet) according to required stator piece, rotor sheet; Select suitable big punch press; With the part of the upper die that is provided with the outer cupping tool 1 of rotor drift 4, rotor shaft hatch punch 5, rotor keyway drift 6 and stator, stator cramp groove drift 2, stator external labeling groove drift 3 and be provided with the mould of rotor counterdie cutting edge 4 ', rotor shaft hatch cutting edge of die 5 ', rotor keyway counterdie cutting edge 6 ' and the part of the lower die of stator cylindrical punch cutting edge 1 ', stator cramp groove counterdie cutting edge 2 ', stator external labeling groove counterdie cutting edge 3 '; Be installed on the punch press; Punch press and mould adjustment is suitable; Start punch press; Plate is put in the mould correctly location, blank of a stroke punching press of punch press, obtain be stamped out in rotor, the rotor shaft hatch justify, the rotor blank of rotor keyway and stator cylindrical, stator cramp groove, stator external labeling groove.
The crucial mould of the above-mentioned electric machine rotor sheet of realization provided by the invention red switch pilot trench blanking Sheet Metal Forming Technology; With the functional die Integration Design of the different operations of prior art on a secondary mould; Circle, rotor keyway and rotor are once gone out on mould in the axis hole of rotor; The high conformity of rotor sheet, flute profile is neat after laminating; After rotor shaft hatch and the punching press of rotor keyway, only when the punching press stator slot separates the rotor sheet, use once, rather than the repeated use of multiple working procedure, improved the quality of stator piece and rotor sheet.
Above-described only is preferred embodiment of the present invention.Should be understood that for those of ordinary skills, under teachings provided by the present invention, can also make other equivalent modifications and improvement, also should be regarded as protection scope of the present invention.
Claims (5)
1. crucial mould of realizing electric machine rotor sheet red switch pilot trench blanking Sheet Metal Forming Technology; Form by part of the upper die, part of the lower die and targeting part; The part of the upper die comprises the last cutting edge that is provided with rotor shaft hatch punch and the outer cupping tool of stator; Last cutting edge is installed on the upper mounted plate, it is characterized in that: the described cutting edge of going up also comprises rotor drift, rotor keyway drift and stator cramp groove drift, stator external labeling groove drift; The position and the size of rotor, rotor shaft hatch, rotor keyway and the stator cylindrical of the position that last cutting edge is laid, size and required punching press, stator cramp groove, stator external labeling groove are corresponding; The part of the lower die comprises the following cutting edge corresponding with last cutting edge;
Described rotor keyway drift is fixedly connected with the rotor shaft hatch punch with the inserts form;
Described stator cramp groove drift is embedded on the outer cupping tool of stator with the inserts form, and inserts built-in end the latter half is fixedly connected with the outer cupping tool of stator, and built-in end the first half is fixedly connected with upper mounted plate simultaneously;
Described stator external labeling groove drift; Gather together with a stator cramp groove drift; Be embedded on the outer cupping tool of stator with the inserts form, inserts built-in end the latter half is fixedly connected with the outer cupping tool of stator, and built-in end the first half is fixedly connected with upper mounted plate simultaneously.
2. the crucial mould of the above-mentioned electric machine rotor sheet of realization according to claim 1 red switch pilot trench blanking Sheet Metal Forming Technology; It is characterized in that: described rotor drift, its notch size radially exceed cutting back rotor cylindrical correspondingly-sized 0.1 mm～0.2 mm in the future.
3. the crucial mould of the above-mentioned electric machine rotor sheet of realization according to claim 1 and 2 red switch pilot trench blanking Sheet Metal Forming Technology is characterized in that: described rotor drift adopts interference fit, expanded metal is fixed or bonding mode is installed on the upper mounted plate.
4. electric machine rotor sheet red switch pilot trench blanking Sheet Metal Forming Technology that is realized by crucial mould according to claim 1 is characterized in that it may further comprise the steps:
1. answer red switch pilot trench, rotor shaft hatch and stator cylindrical: stamping rotor groove, rotor keyway and rotor shaft hatch, the stator of punching press simultaneously cylindrical, stator cramp groove and stator external labeling groove;
2. the one-shot stator slot is held concurrently and separated the rotor sheet: with rotor shaft hatch and rotor keyway location, the punching press stator slot is held concurrently and is separated stator piece and rotor sheet.
5. electric machine rotor sheet red switch pilot trench blanking Sheet Metal Forming Technology according to claim 4; It is characterized in that: step 1. in; The rotor notch of institute's punching press radially exceeds cutting back rotor excircle dimension 0.1 mm～0.2 mm in the future, and handle when processing rotor iron core cylindrical is cut the air gap operation afterwards rotor oral area position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010589674 CN102005869B (en) | 2010-12-15 | 2010-12-15 | Blank pressing process used in punching rotor slot on motor stator plate and key mold thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010589674 CN102005869B (en) | 2010-12-15 | 2010-12-15 | Blank pressing process used in punching rotor slot on motor stator plate and key mold thereof |
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| Publication Number | Publication Date |
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| CN102005869A CN102005869A (en) | 2011-04-06 |
| CN102005869B true CN102005869B (en) | 2012-12-12 |
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| CN 201010589674 Active CN102005869B (en) | 2010-12-15 | 2010-12-15 | Blank pressing process used in punching rotor slot on motor stator plate and key mold thereof |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102638138A (en) * | 2012-04-19 | 2012-08-15 | 江苏通达动力科技股份有限公司 | Technology for machining stator/rotor punching piece |
| CN103051116B (en) * | 2012-07-05 | 2017-04-12 | 贵溪泰来科技发展有限公司 | Manufacturing method and special press fitting apparatus of partitioned stator of servo motor of sewing machine |
| CN104518621A (en) * | 2013-09-29 | 2015-04-15 | 浙江中友电器有限公司 | Method for manufacturing micro-motor stator and rotor punching sheets and mould specialized for punching of stator punching sheet |
| CN103904835B (en) * | 2014-03-07 | 2016-05-04 | 江苏通达动力科技股份有限公司 | A kind of full double stator and rotor blanking die |
| CN104218744A (en) * | 2014-09-23 | 2014-12-17 | 徐红耀 | Machining fixture suitable for riveting-buckling point of stator sheet |
| CN105013924B (en) * | 2015-07-06 | 2017-07-11 | 南通通达矽钢冲压科技有限公司 | A kind of processing technology of punching |
| CN109470542B (en) * | 2018-10-19 | 2021-04-16 | 上海传输线研究所（中国电子科技集团公司第二十三研究所） | Complex permeability test sample preparation mold and application method |
| CN113824277B (en) * | 2021-11-24 | 2022-02-08 | 宁波震裕科技股份有限公司 | Manufacturing process of shaft hole single-key motor iron core |
| CN115178639A (en) * | 2022-04-07 | 2022-10-14 | 安徽飞翔电器有限公司 | Rigid stripping mechanism for stator and rotor punching sheets |
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| CN101633018A (en) * | 2009-07-27 | 2010-01-27 | 永济新时速电机电器有限责任公司 | Punching processing technology of motor stator and rotor laminations |
| CN201415237Y (en) * | 2009-04-20 | 2010-03-03 | 上海电气集团上海电机厂有限公司 | Stator lamination punch die module |
| CN201415283Y (en) * | 2009-04-20 | 2010-03-03 | 上海电气集团上海电机厂有限公司 | Stator lamination sub-cut notching mold |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5809638A (en) * | 1992-10-26 | 1998-09-22 | L.H. Carbide Corporation | Method for manufacturing laminated parts with center interlock |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201415237Y (en) * | 2009-04-20 | 2010-03-03 | 上海电气集团上海电机厂有限公司 | Stator lamination punch die module |
| CN201415283Y (en) * | 2009-04-20 | 2010-03-03 | 上海电气集团上海电机厂有限公司 | Stator lamination sub-cut notching mold |
| CN101633018A (en) * | 2009-07-27 | 2010-01-27 | 永济新时速电机电器有限责任公司 | Punching processing technology of motor stator and rotor laminations |
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Effective date of registration: 20160119 Address after: 730050 No. 66 Minle Road, Qilihe District, Gansu, Lanzhou Patentee after: Lanzhou Electric Corporation Address before: 730050 No. 66 Minle Road, Qilihe District, Gansu, Lanzhou Patentee before: Lanzhou Landian Motor Co., Ltd. |