CN100568675C - The manufacture method of electric machine stator iron and rotor core - Google Patents
The manufacture method of electric machine stator iron and rotor core Download PDFInfo
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- CN100568675C CN100568675C CNB2007100480032A CN200710048003A CN100568675C CN 100568675 C CN100568675 C CN 100568675C CN B2007100480032 A CNB2007100480032 A CN B2007100480032A CN 200710048003 A CN200710048003 A CN 200710048003A CN 100568675 C CN100568675 C CN 100568675C
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- core sheet
- forehead
- stator core
- rotor core
- profile
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Abstract
The manufacture method of a kind of electric machine stator iron and rotor core is to utilize a sheet metal to go out rotor core sheet earlier, and the rotor core sheet of going out is rotated or the folded riveting of irrotational method, again the sheet metal of going out rotor core sheet is slightly gone out the common forehead of stator core sheet afterwards, the common forehead gone out carried out stretch processing thereafter, again stretched common forehead is flattened, than the length direction of common forehead before stretching increase is arranged through the common forehead after the leveling to the center, again altogether forehead and profile of tooth thereof being carried out essence afterwards dashes, guarantee the dimensional accuracy of stator core sheet, the profile of last punching press stator core sheet and folded this stator core sheet of riveting.Utilize said method, can guarantee has enough punching press surpluses during towards profile of tooth in essence, and the forehead surface does not have any rough offset and makes magnetic flux can not get muddled with the side altogether.
Description
[technical field]
The present invention relates to the manufacture method of a kind of motor stator and rotor, particularly the method by a shared made motor stator and rotor.
[background technology]
Motor all is equipped with stator and rotor, it is respectively to be to form with rotation or the folded riveting of irrotational mode more later on the sheet metal punching press by a plurality of stator core sheets and stator core sheet, and for satisfying motor high-performance, high-precision development trend, should as far as possible little (less than 0.02mm) thereby obtains higher efficient and torsion in the gap that requires stator and rotor.
The method that present industry is made this stator core sheet and rotor core sheet has two kinds:
First method is that the stator core sheet is made with two different sheet metal punching presses respectively with rotor core sheet, though utilize this kind mode can produce the product of excellent performance, processing cost is too high, production efficiency is low, and waste of raw materials is huge.
Second method is that shared same the raw material of stator core sheet and rotor core sheet stamp out, relevant prior art can be consulted Japanese patent laid-open 6-343248 number, Te Kaipingdi 6-351196 number, Te Kaipingdi 7-7895 number, Chinese patent ZL01801259.0 number and United States Patent (USP) the 5th, 539, No. 947, it all is to go out rotor core sheet earlier on a strip metal thin plate, stamp out common forehead (also claiming magnetic pole tooth) on (being the remainder after sheet metal washes away rotor core sheet) in flakes at half of stator core sheet then, applying sheet metal thickness side in the district portion position that is total to forehead more afterwards upwards pressure, thereby roll being total to forehead, make the reduced thickness of calendering part or adopt mode of the same race, increase the calendering number of times, reduce the method (as described in Chinese patent ZL08012259.0 number) of calendering amount, common forehead is extended to stator core sheet center position, but this kind method exists same technological deficiency, be to cause common forehead surface concavo-convex offset to be arranged after it rolls, and cause stator core magnetic flux to get muddled with the side; Though ZL08012259.0 number described method of Chinese patent can reduce disorderly amount, can't thoroughly eliminate this problem also.
[summary of the invention]
The object of the present invention is to provide the manufacture method of a kind of motor stator and rotor, to solve the defective that waste of material is big, surperficial because of common forehead and the side has concavo-convex offset to cause stator core magnetic flux to get muddled in above-mentioned two kinds of methods.
Another object of the present invention is to provide a kind of manufacture method of electric machine stator iron sheet, to solve the defective that waste of material is big, surperficial because of common forehead and the side has concavo-convex offset to cause stator core magnetic flux to get muddled in above-mentioned two kinds of methods.
For realizing the purpose of foregoing invention, the manufacture method of motor stator of the present invention and rotor comprises the steps:
Go out rotor core sheet with sheet metal earlier by the profile of tooth of rotor core sheet, and the rotor core sheet of going out is folded riveting formation rotor core;
The line embedding groove that the sheet metal of going out rotor core sheet is slightly gone out the stator core sheet is forehead together;
The common forehead of having gone out is carried out stretch processing;
Again stretched common forehead is flattened;
Again altogether forehead and profile of tooth being carried out essence dashes;
The profile of punching press stator core sheet, and to the folded riveting formation of the stator core sheet of going out stator core.
According to above-mentioned principal character, the step of going out rotor core sheet earlier with sheet metal comprises and stamps out positioning guide hole, stamps out the rotor core sheet axle center hole, goes out the step of the folded rivet hole of rotor core sheet.
According to above-mentioned principal character, it is arc in above-mentioned stretching process to be that part with the common forehead of stator core sheet is stamped into, and is with above-mentioned arch portion leveling in the treatment process of leveling.
According to above-mentioned principal character, to forehead and profile of tooth altogether carry out step that essence dashes comprise to forehead altogether together the line embedding groove between the forehead carry out the smart step, the stamping-out that make line embedding groove reach its dimensional accuracy of dashing and go the profile of tooth corresponding to make stator core sheet internal diameter guarantee that the step of its dimensional accuracy and the profile of tooth that stamping-out goes out the stator core sheet make the profile of tooth of stator core sheet guarantee the step of its precision with the profile of tooth of rotor core sheet.
According to above-mentioned principal character, forehead and profile of tooth are altogether carried out also having stamping-out to go out the step of the folded riveting interlocking portion of stator core sheet after the step that essence dashes.
For realizing above-mentioned another purpose, the manufacture method of electric machine stator iron sheet of the present invention comprises the steps:
Go out rotor core sheet earlier with sheet metal;
The sheet metal of going out rotor core sheet is slightly gone out the common forehead of stator core sheet;
The common forehead of having gone out is carried out stretch processing;
Again stretched common forehead is flattened;
Again altogether forehead and profile of tooth being carried out essence dashes;
The profile of punching press stator core sheet.
Compared with prior art, the present invention has following beneficial effect:
1. the present invention utilizes same strip metal sheet stamping to go out stator for motors lamination and rotor core sheet, thereby the method that material is shared, overcome that processing cost is too high in the prior art, production efficiency is low, the defective that waste of raw materials is huge, thus greatly reduce cost and increase substantially output.
2. the present invention adopts the method to forehead or profile of tooth altogether carry out slightly dashing, stretching, leveling, essence are dashed, thereby reduce the gap of rotor and stator, the high-precision gap of stable acquisition, and the forehead surface does not have any concavo-convex offset with the side altogether, guarantees that the magnetic flux of motor does not get muddled.
3. utilization of the present invention is to being total to the amount of tension that forehead or profile of tooth stretch and form, guaranteed the requirement of frame bore less than the rotor core external diameter, thereby can carry out the secondary Precision Machining to rotor core external diameter and frame bore after the folded riveting again, thereby can between stator core and rotor core, form enough little gap, thereby meet the requirement of high-performance, high-precision motor.
[description of drawings]:
Fig. 1 is the leading portion process chart of the Mould Machining unshakable in one's determination of punching press stator and rotor among the present invention
Fig. 2 is the stage casing process chart of the Mould Machining unshakable in one's determination of punching press stator and rotor among the present invention
Fig. 3 is the back segment process chart of the Mould Machining unshakable in one's determination of punching press stator and rotor among the present invention
Fig. 4 is for carrying out plane graph after the amplification of stretching process to the common forehead of stator core sheet among the present invention.
Fig. 5 carries out the side cutaway view of stretching process after amplifying for the common forehead to the stator core sheet among the present invention.
Fig. 6 flattens the side cutaway view of operation after amplifying for common forehead stretching place to the stator core sheet among the present invention.
Fig. 7 is the schematic perspective view of the rotor core of employing method manufacturing of the present invention.
Fig. 8 is the schematic perspective view of the stator core of employing method manufacturing of the present invention.
[embodiment]
For the concrete structure of stator core sheet described in the following explanation and rotor core sheet can join Japanese patent laid-open 6-343248 number, Te Kaipingdi 6-351196 number, Te Kaipingdi 7-7895 number, Chinese patent ZL01801259.0 number and United States Patent (USP) the 5th, 539, No. 947 described, therefore no longer specifically describe its structure below, center of gravity of the present invention provides a kind of method by a shared made motor stator and rotor, this method, see also Fig. 1, Fig. 2 and shown in Figure 3, the manufacture method of motor stator of the present invention and rotor comprises the steps:
Utilize sheet metal 1 to carry out A step operation and stamp out positioning guide hole 2;
Utilize B step operation to stamp out rotor core sheet 6 (detailed ginseng aftermentioned) axle center hole 3;
Utilize C step operation to stamp out the folded rivet hole 4 of rotor core sheet 6, the interlocking portion that this folded rivet hole 4 is a rotor core sheet 6, wherein interlock method is following mode, promptly the folded rivet hole 4 on first rotor core sheet is through hole or groove, second to the folded rivet hole 4 of the stator core sheet of the required folded riveting quantity of stator core all be half through hole (the punching degree of depth be lamella thickness 3/10～9/10), the salient point that utilizes punching press half through hole to form embeds through hole or embeds the recess of half through hole, by that analogy, the rotor core sheet of folded riveting some and form change stator core (as shown in Figure 7) desired thickness after, begin to make next part rotor core with said method again, wherein folded rivet hole interlocking shape can adopt multiple shape, as circle, square, the V font, flute profile etc.;
Utilize D step operation to go out rotor core sheet 6 by profile of tooth 5 punching out of rotor core sheet 6, and utilize rotation of diel recessed (mother) mould or irrotational method, folded rivet hole 4 riveteds by rotor core sheet 6 go out rotor core;
Utilize E step operation to stamp out the line embedding groove 7 of stator core sheet 15 and the common forehead 8 of stator core sheet;
Utilize the common forehead 8 of F step operation stretching stator core sheet 15, make its distortion, its shape can be joined label 9 and the Fig. 4 and shown in Figure 5 among Fig. 2, in the present embodiment promptly, is that the part with the common forehead 8 of this stator core sheet 15 is stamped into arc earlier;
Utilize G step operation to flatten processing, common forehead 8 is stretched to stator core sheet 15 centers, it is shaped as the label 10 that can join among Fig. 2 with shown in Figure 6, is about to that the rammed arcuate section that is total to forehead 8 of institute flattens in F step operation;
Utilize H step operation that common forehead 8 is carried out essence with line embedding groove 7 and dash, make line embedding groove 7 reach its dimensional accuracy, concrete shape is shown in the label among Fig. 2 11;
Utilize I step operation stamping-out to go the profile of tooth corresponding, make stator core sheet 15 internal diameters 12 guarantee its dimensional accuracies with the profile of tooth 5 of rotor core sheet 15;
Utilize J step operation stamping-out to go out the profile of tooth 13 of stator core sheet 15, make the profile of tooth 13 of stator core sheet 15 guarantee its precision;
Utilize K step operation stamping-out to go out stator core sheet 15 folded riveting interlocking portions 14, the quantity of the folded riveting portion of this part and arrangement mode can carry out rational deployment according to the size and the shape of the stator core sheet of reality, its interlock mode is as follows, promptly the folded rivet hole on first stator core sheet is through hole or groove, second to the folded rivet hole of the stator core sheet of the required folded riveting quantity of stator core all be half through hole (the punching degree of depth be lamella thickness 3/10～9/10), the salient point that forms with punching press half through hole embeds through hole or embeds the recess of half through hole, by that analogy, the stator core sheet quantity of folded riveting is to the stator core desired thickness, begin to make next part stator core with said method again, wherein folded rivet hole interlocking shape can adopt multiple shape, as circle, square, the V font, flute profile etc.;
Utilize L step operation stamping-out to go out stator core sheet 15, go out stator core (as shown in Figure 8) by rotation of diel recessed (mother) mould or the folded riveting of irrotational method.
In like manner, said method of the present invention also can be applicable to make separately in the process of electric machine stator iron sheet and electric mover lamination, and concrete steps are described below, and can join above-mentionedly as for concrete operation, below no longer specifies.
The method of making the electric machine stator iron sheet comprises the steps:
Go out rotor core sheet earlier with sheet metal;
The sheet metal of going out rotor core sheet is slightly gone out the common forehead of stator core sheet;
The common forehead of having gone out is carried out stretch processing, and wherein the concrete grammar of La Shening also can be as above-mentioned;
Stretched common forehead is flattened, the common forehead length direction before stretching through the common forehead after the leveling has increase again;
Again altogether forehead and profile of tooth are carried out essence and dash, guarantee the dimensional accuracy of stator core sheet;
The profile of punching press stator core sheet.
The method of making the electric machine rotor iron core sheet comprises the steps:
Go out rotor core sheet earlier with sheet metal;
The profile of tooth of stamping rotor lamination;
Profile of tooth to rotor core sheet is carried out stretch processing, and wherein the concrete grammar of La Shening also can be as above-mentioned;
Stretched profile of tooth is flattened, the profile of tooth before stretching through the profile of tooth after the leveling radially outwards has increase again;
Again profile of tooth is carried out essence and dash, guarantee the dimensional accuracy of rotor core sheet.
Compared with prior art, the present invention has following beneficial effect:
1. the present invention utilizes the same sheet metal to stamp out stator for motors lamination and rotor core sheet, Thereby the method that material shares has overcome that processing cost is too high in the prior art, production efficiency is low, and is former The defective that waste of material is huge, thus greatly reduce cost and increase substantially output.
The present invention adopt to common forehead or profile of tooth slightly rush, stretch, flatten, smart punching, thereby reduce The gap of rotor and stator, the high-precision gap of stable acquisition, and can not with the side in the forehead surface altogether Any concavo-convex offset is arranged, guarantee that the magnetic flux of motor does not get muddled.
3. utilization of the present invention has been guaranteed frame bore to the amount of tension of common forehead or profile of tooth stretching formation Less than the requirement of rotor core external diameter, thus can be again in the rotor core external diameter and stator core after the folded riveting The secondary Precision Machining is carried out in the footpath, such as grinding, thereby can form between stator core and rotor core Enough little gap, thus the requirement of high-performance, high-precision motor met.
Claims (5)
1. a method of making electric machine stator iron and rotor core is characterized in that this method comprises the steps:
Go out rotor core sheet with sheet metal earlier by the profile of tooth of rotor core sheet, and the rotor core sheet of going out is folded riveting formation rotor core;
The line embedding groove that the sheet metal of going out rotor core sheet is slightly gone out the stator core sheet is forehead together;
The common forehead of having gone out is carried out stretch processing;
Again stretched common forehead is flattened;
Again the profile of tooth that is total to forehead and stator core sheet being carried out essence dashes;
The profile of punching press stator core sheet, and to the folded riveting formation of the stator core sheet of going out stator core;
It is arc in above-mentioned stretch processing to be that part with the common forehead of stator core sheet is stamped into, and is with above-mentioned arc leveling in the treatment process of leveling.
2. the method for claim 1 is characterised in that: the step of going out rotor core sheet earlier with sheet metal comprises and stamps out positioning guide hole, stamps out the rotor core sheet axle center hole, goes out the step of the folded rivet hole of rotor core sheet.
3. method as claimed in claim 2 is characterised in that: the profile of tooth of forehead and stator core sheet is altogether carried out the step that essence dashes comprise: to forehead altogether together the line embedding groove between the forehead carry out the smart step, the stamping-out that make line embedding groove reach its dimensional accuracy of dashing and go the profile of tooth corresponding to make stator core sheet internal diameter guarantee that the step of its dimensional accuracy and the profile of tooth that stamping-out goes out the stator core sheet make the profile of tooth of stator core sheet guarantee the step of its precision with the profile of tooth of rotor core sheet.
4. method as claimed in claim 3 is characterised in that: the profile of tooth of forehead and stator core sheet is altogether carried out also having stamping-out to go out the step of the folded riveting interlocking portion of stator core sheet after the step that essence dashes.
5. the manufacture method of an electric machine stator iron sheet is characterized in that this method comprises the steps:
Go out rotor core sheet earlier with sheet metal;
The sheet metal of going out rotor core sheet is slightly gone out the common forehead of stator core sheet;
The common forehead of having gone out is carried out stretch processing;
Again stretched common forehead is flattened;
Again the profile of tooth that is total to forehead and stator core sheet being carried out essence dashes;
The profile of punching press stator core sheet;
It is arc in above-mentioned stretch processing to be that part with the common forehead of stator core sheet is stamped into, and is with above-mentioned arc leveling in the treatment process of leveling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100480032A CN100568675C (en) | 2007-11-08 | 2007-11-08 | The manufacture method of electric machine stator iron and rotor core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100480032A CN100568675C (en) | 2007-11-08 | 2007-11-08 | The manufacture method of electric machine stator iron and rotor core |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101202483A CN101202483A (en) | 2008-06-18 |
| CN100568675C true CN100568675C (en) | 2009-12-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100480032A Expired - Fee Related CN100568675C (en) | 2007-11-08 | 2007-11-08 | The manufacture method of electric machine stator iron and rotor core |
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| Country | Link |
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| CN (1) | CN100568675C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5537964B2 (en) * | 2010-01-19 | 2014-07-02 | 株式会社日立製作所 | Rotating electric machine |
| CN101882841B (en) * | 2010-07-13 | 2016-02-10 | 杜小兵 | The scratching process of motor chip |
| CN107127251B (en) * | 2017-05-18 | 2019-01-25 | 安徽飞翔电器有限公司 | A kind of stator piece and rotor sheet stacking method |
| US11309776B2 (en) * | 2017-09-29 | 2022-04-19 | Aisin Corporation | Manufacturing method of core for rotary electric machine |
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2007
- 2007-11-08 CN CNB2007100480032A patent/CN100568675C/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN101202483A (en) | 2008-06-18 |
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Granted publication date: 20091209 Termination date: 20101108 |