CN110014081B - Motor stator machining process - Google Patents
Motor stator machining process Download PDFInfo
- Publication number
- CN110014081B CN110014081B CN201910186101.5A CN201910186101A CN110014081B CN 110014081 B CN110014081 B CN 110014081B CN 201910186101 A CN201910186101 A CN 201910186101A CN 110014081 B CN110014081 B CN 110014081B
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- China
- Prior art keywords
- silicon steel
- steel sheet
- heating
- motor stator
- processing technology
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
- B21D35/002—Processes combined with methods covered by groups B21D1/00 - B21D31/00
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/16—Heating or cooling
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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
Abstract
The invention discloses a motor stator processing technology, which belongs to the technical field of machining and has the advantages that the state of a silicon steel sheet before installation is changed through heat, and the silicon steel sheet is convenient to install, and the technical scheme is as follows, the steps are as follows: early preparation: cleaning the silicon steel sheet coil, and fixing the silicon steel sheet coil on a leveling machine; step two: leveling the silicon steel sheet roll: the silicon steel sheet is led out from the silicon steel sheet roll and passes through the leveling machine, and the two surfaces of the silicon steel sheet roll are extruded and leveled by the leveling machine; step three: and (3) heating the silicon steel sheet coil by annular difference on two surfaces: two side surfaces of the silicon steel sheet at the same position are annularly heated through an annular heating plate, and the heating temperatures of the two surfaces of the silicon steel sheet have temperature difference; step four: and (3) stamping the silicon steel sheet coil: punching and forming the heating position of the silicon steel sheet; step five: silicon steel sheet installation: arc silicon steel sheets are sequentially and equidirectionally arranged in the motor shell and are extruded and leveled through the balancing weight.
Description
Technical Field
The invention relates to the technical field of machining, in particular to a motor stator machining process.
Background
The stator of the motor is a fixed part in the motor, the motor consists of a stator and a rotor, and the stator and the rotor are used as conversion devices for realizing electric energy and mechanical energy and electric energy.
The motor stator is formed by sequentially loading punched silicon steel sheets into a motor shell and overlapping, then loading the silicon steel sheets into a motor rotor assembly, and fixing two end covers to form the motor.
Chinese patent publication No. CN108933507A discloses a process for manufacturing a stator punching sheet, which includes punching a silicon steel sheet to form an annular stator, and then installing the stator into a motor casing, wherein the punched silicon steel sheet is not flat, and the silicon steel sheet is also easily deformed during installation, so that a large gap is easily formed during stacking, and the stator punching sheet is difficult to keep flat after extrusion, so that the stator punching sheet cannot be used in a precision motor.
Disclosure of Invention
The invention aims to provide a motor stator processing technology which has the advantages that the state of silicon steel sheets before installation is changed through heat, and the silicon steel sheets are convenient to install.
The technical purpose of the invention is realized by the following technical scheme: a motor stator processing technology comprises the following steps:
the method comprises the following steps: early preparation: cleaning the silicon steel sheet coil, and fixing the silicon steel sheet coil on a leveling machine;
step two: leveling the silicon steel sheet roll: the silicon steel sheet is led out from the silicon steel sheet roll and passes through the leveling machine, and the two surfaces of the silicon steel sheet roll are extruded and leveled by the leveling machine;
step three: and (3) heating the silicon steel sheet coil by annular difference on two surfaces: two side surfaces of the silicon steel sheet at the same position are annularly heated through an annular heating plate, and the heating temperatures of the two surfaces of the silicon steel sheet have temperature difference;
step four: and (3) stamping the silicon steel sheet coil: punching and forming the heating position of the silicon steel sheet;
step five: silicon steel sheet installation: arc silicon steel sheets are sequentially and equidirectionally arranged in the motor shell and are extruded and leveled through the balancing weight.
Through adopting above-mentioned technical scheme, after the extrusion flattening is rolled up to the silicon steel sheet, carry out the difference heating again, thereby there is the difference in temperature in the temperature of silicon steel sheet both sides face, effect through expend with heat and contract with cold, the silicon steel sheet produces and carries out slight bending to the low temperature side, thereby the circular silicon steel sheet that uses the heating position as central stamping forming is the less toper of inclination, thereby at the in-process of the motor casing of packing into, the depressed face is packing into in the motor casing downwards, thereby it is even to press down the effect, and the silicon steel sheet is the inside extrusion expansion effort of toper all to the hunch face, thereby can not produce inside extrusion expansion effort and lead to producing the arc to hunch and influence the installation of silicon steel sheet to the both sides face random distribution respectively, thereby it is inseparable to.
Further, the balancing weight is ring-shaped, the internal diameter of the balancing weight is equal to or slightly smaller than the internal diameter of the silicon steel sheet, and the external diameter of the balancing weight is equal to or slightly smaller than the external diameter of the silicon steel sheet.
Through adopting above-mentioned technical scheme, annular balancing weight can be more comprehensive extrusion silicon steel sheet, effectual promotion extrusion effect.
Furthermore, a cloth liner is arranged between the balancing weight and the silicon steel sheet.
Through adopting above-mentioned technical scheme, the cloth liner is effectual prevents when balancing weight extrusion silicon steel sheet, balancing weight fish tail silicon steel sheet.
Further, the cloth liner is non-woven fabric.
Through adopting above-mentioned technical scheme, non-woven fabrics matter is light with low costs, and the people of being convenient for lay.
Further, the silicon steel sheet is leveled through the S-shaped leveling channel.
Through adopting above-mentioned technical scheme, the silicon steel sheet passes through the S-shaped flattening back, and the two sides of being convenient for make a round trip to extrude the flattening, promote the flattening effect, and the later stage of being convenient for carries out the difference heating.
Furthermore, the heating temperature difference of the two surfaces of the silicon steel sheet in the third step is more than 0 ℃ and less than 10 ℃.
Through adopting above-mentioned technical scheme, avoid heating the too big and lead to the deflection grow of temperature difference, avoid the silicon steel sheet to excessively warp.
Furthermore, the heating temperature is controlled to be 50-70 ℃, and heat is dissipated through air cooling after stamping is finished.
Through adopting above-mentioned technical scheme, because the stator diameter is great, for great ring structure, the heat transfer is slower, and the heat dissipation is too fast, and higher temperature can suitably prolong the heating deformation time, promotes the deformation effect.
Furthermore, the thickness of the silicon steel sheet is controlled to be 1-3 mm.
Through adopting above-mentioned technical scheme, avoid the silicon steel sheet too thick and lead to the unable effect that reaches of difference heating.
In conclusion, the invention has the following beneficial effects:
1. the silicon steel sheet is subjected to nondestructive deformation in a differential heating mode;
2. the conical silicon steel sheets are tightly attached to each other after being installed.
Drawings
FIG. 1 is a view showing a state of forming a silicon steel sheet according to the present embodiment;
fig. 2 is a view showing an installation state of silicon steel sheets according to the present embodiment;
FIG. 3 is a view showing a state of pressing the silicon steel sheet according to the present embodiment;
fig. 4 is a diagram showing the leveling and differential heating states of the silicon steel sheet roll according to the present embodiment.
In the figure, 1, a silicon steel sheet; 2. a motor housing; 3. non-woven fabrics; 4. a balancing weight; 5. a work bench.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
A motor stator processing technology comprises the following steps:
the method comprises the following steps: early preparation: as shown in fig. 4, the binding ropes of the silicon steel sheet coil are removed, the outer end part of the silicon steel sheet coil is cleaned, dust, gravel and other impurities on the surface of the silicon steel sheet coil are removed, the outer surface of the silicon steel sheet coil is prevented from being worn by the dust, gravel and other impurities in the leveling process, and then the silicon steel sheet coil is fixed on a leveling machine;
step two: leveling the silicon steel sheet roll: as shown in fig. 4, silicon steel sheet 1 rolls up interior logical process evener from the silicon steel sheet, be equipped with the relative arc deflector that sets up of two openings on the evener, and a plurality of evener that contact with 1 side of silicon steel sheet, thereby the silicon steel sheet 1 who leads to out can contact with evener and arc deflector, the S-shaped flattening passageway of silicon steel sheet 1 has been realized, thereby make silicon steel sheet 1 through making the bending deformation of twice by a wide margin that produces, thereby make the in-process of silicon steel sheet 1 re-bending make the surface can be better open, thereby the fold on effectual reduction surface, guarantee that silicon steel sheet 1 keeps smooth state, be convenient for the later stage carry out the difference heating.
Step three: and (3) heating the silicon steel sheet coil by annular difference on two surfaces: as shown in fig. 4, a plurality of heating plates are fixed on a conveying chain, the heating plates can circularly attach to two side surfaces of a silicon steel sheet 1 at the same position to perform annular heating through the circular rotation of the conveying chain, the thickness of the silicon steel sheet 1 is controlled between 1 mm and 3mm, the heating temperature is controlled between 50 ℃ and 70 ℃, after punching is completed, air cooling heat dissipation is performed, the heating temperature difference between two surfaces of the silicon steel sheet 1 is greater than 0 ℃ and less than 10 ℃, the thinner silicon steel sheet 1 is convenient to deform, the temperature conduction is convenient, the comprehensive heating effect can be better achieved, the heating temperature difference is small, the silicon steel sheet 1 is prevented from generating larger deformation, the excessive deformation of the silicon steel sheet 1 is avoided, the stator has a larger diameter and is of a larger circular ring structure, the heat transfer is slower, the heat dissipation is too fast, the heating deformation time can be properly prolonged at higher temperature, the deformation effect is improved, and the rapid heat dissipation is performed after, the stator is prevented from being damaged due to overhigh temperature, and a better differential heating effect is achieved.
Step four: and (3) stamping the silicon steel sheet coil: as shown in fig. 4, the distance between the punching gap adjustment and the heating plate is the same, so that the accuracy in the punching process is improved, the punching work of the heating position is ensured, and the silicon steel sheet 1 is punched to form a designed structure.
Step five: silicon steel sheet installation: as shown in fig. 4, after the silicon steel sheet coil is flattened by extrusion, differential heating is performed, as shown in fig. 1, a temperature difference exists between the temperatures of the two side surfaces of the silicon steel sheet 1, and the silicon steel sheet 1 is slightly bent to the low temperature side by the action of thermal expansion and cold contraction, so that the circular silicon steel sheet 1 which is punched and formed by taking the heating position as the center is in a conical shape with a small inclination angle.
As shown in fig. 2 and 3, when the motor casing 2 and the silicon steel sheet 1 are installed, the motor casing 2 is inserted into the installation table, and the non-woven fabric 3 and other laying cloth can be laid on the upper surface of the installation table, so that the silicon steel sheet 1 can be prevented from directly contacting with the surface of the installation table to cause abrasion in the installation process.
As shown in fig. 2 and 3, after the motor casing 2 is fixedly inserted, the concave surface of the silicon steel sheet 1 is downwards filled into the motor casing 2, so that the lower pressure is uniform, the silicon steel sheet 1 is conical, the internal extrusion expansion acting force is uniform, the internal extrusion expansion force cannot be generated, the arc arching is generated due to the random distribution of the internal extrusion expansion force to the two side surfaces, the installation of the silicon steel sheet 1 is influenced, and the silicon steel sheets 1 after being installed are tightly attached to each other.
As shown in fig. 2 and 3, after the silicon steel sheets 1 are completely fixed, the surface of the silicon steel sheet 1 at the top is paved with the backing cloth such as the non-woven fabric 3, and the balancing weight 4 is placed on the non-woven cloth paved at the top, so that the silicon steel sheets 1 are prevented from being worn by the balancing weight 4.
As shown in fig. 2, 3, balancing weight 4 is ring shape, balancing weight 4 internal diameter equals or slightly is less than 1 internal diameter of silicon steel sheet, balancing weight 4 external diameter equals or slightly is less than 1 external diameter of silicon steel sheet, annular balancing weight 4 of ring shape can more comprehensive extrusion silicon steel sheet 1, effectual promotion extrusion effect, and the squeezing action through balancing weight 4, silicon steel sheet 1 tends to levelly and smoothly when gradual, because 1 initial stack of silicon steel sheet is accurate not have great gap, thereby silicon steel sheet 1 after the extrusion also keeps good precision, can not produce great gap.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
Claims (8)
1. A motor stator processing technology is characterized in that: the method comprises the following steps:
the method comprises the following steps: early preparation: cleaning the silicon steel sheet coil, and fixing the silicon steel sheet coil on a leveling machine;
step two: leveling the silicon steel sheet roll: the silicon steel sheet (1) is led out from the silicon steel sheet roll and passes through a leveling machine, and two sides of the silicon steel sheet roll are extruded and leveled through the leveling machine;
step three: and (3) heating the silicon steel sheet coil by annular difference on two surfaces: two side surfaces of the silicon steel sheet (1) at the same position are annularly heated through an annular heating plate, and the heating temperatures of the two surfaces of the silicon steel sheet (1) have temperature difference;
step four: and (3) stamping the silicon steel sheet coil: stamping and forming the heating position of the silicon steel sheet (1);
step five: silicon steel sheet installation: arc silicon steel sheets (1) are sequentially and equidirectionally loaded into the motor shell (2) and are extruded and leveled through the balancing weight (4).
2. The motor stator processing technology as claimed in claim 1, wherein: the balancing weight (4) is ring-shaped, the inner diameter of the balancing weight (4) is equal to or slightly smaller than the inner diameter of the silicon steel sheet (1), and the outer diameter of the balancing weight (4) is equal to or slightly smaller than the outer diameter of the silicon steel sheet (1).
3. The motor stator processing technology as claimed in claim 1, wherein: and a cloth liner is arranged between the balancing weight (4) and the silicon steel sheet (1).
4. The motor stator processing technology as claimed in claim 3, wherein: the cloth liner is a non-woven fabric (3).
5. The motor stator processing technology as claimed in claim 1, wherein: and the silicon steel sheet (1) is leveled through an S-shaped leveling channel.
6. The motor stator processing technology as claimed in claim 1, wherein: and in the third step, the heating temperature difference of the two surfaces of the silicon steel sheet (1) is more than 0 ℃ and less than 10 ℃.
7. The motor stator processing technology as claimed in claim 6, wherein: the heating temperature is controlled between 50 and 70 ℃, and the heat is dissipated through air cooling after the stamping is finished.
8. The motor stator processing technology as claimed in claim 6, wherein: the thickness of the silicon steel sheet (1) is controlled to be 1-3 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910186101.5A CN110014081B (en) | 2019-03-12 | 2019-03-12 | Motor stator machining process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910186101.5A CN110014081B (en) | 2019-03-12 | 2019-03-12 | Motor stator machining process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110014081A CN110014081A (en) | 2019-07-16 |
| CN110014081B true CN110014081B (en) | 2020-05-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910186101.5A Active CN110014081B (en) | 2019-03-12 | 2019-03-12 | Motor stator machining process |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111054820B (en) * | 2019-11-27 | 2021-11-30 | 珠海凯邦电机制造有限公司 | Stamping process for preventing blanking knife edge of straight-bar stator from cracking |
Citations (6)
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|---|---|---|---|---|
| CN102088070A (en) * | 2010-10-29 | 2011-06-08 | 曹建礼 | Instant heating device for pole piece of battery pole piece rolling mill |
| CN102412671A (en) * | 2011-12-01 | 2012-04-11 | 大连天元电机股份有限公司 | Super-large-external-diameter full stator sheet for electric generator and processing method thereof |
| CN102882327A (en) * | 2012-09-20 | 2013-01-16 | 无锡法拉第电机有限公司 | Stator punching sheet overlying die and stator core prestressed overlying process |
| JP5157623B2 (en) * | 2008-04-29 | 2013-03-06 | 三菱電機株式会社 | Cage-shaped rotor manufacturing apparatus and manufacturing method thereof |
| CN103272844A (en) * | 2013-06-20 | 2013-09-04 | 重庆科技学院 | Device and method for rolling magnesium alloy at different temperatures |
| CN108173398A (en) * | 2017-12-27 | 2018-06-15 | 天津东方兴泰工业科技股份有限公司 | A kind of motor stator＆rotor blanking piece production technology |
-
2019
- 2019-03-12 CN CN201910186101.5A patent/CN110014081B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5157623B2 (en) * | 2008-04-29 | 2013-03-06 | 三菱電機株式会社 | Cage-shaped rotor manufacturing apparatus and manufacturing method thereof |
| CN102088070A (en) * | 2010-10-29 | 2011-06-08 | 曹建礼 | Instant heating device for pole piece of battery pole piece rolling mill |
| CN102412671A (en) * | 2011-12-01 | 2012-04-11 | 大连天元电机股份有限公司 | Super-large-external-diameter full stator sheet for electric generator and processing method thereof |
| CN102882327A (en) * | 2012-09-20 | 2013-01-16 | 无锡法拉第电机有限公司 | Stator punching sheet overlying die and stator core prestressed overlying process |
| CN103272844A (en) * | 2013-06-20 | 2013-09-04 | 重庆科技学院 | Device and method for rolling magnesium alloy at different temperatures |
| CN108173398A (en) * | 2017-12-27 | 2018-06-15 | 天津东方兴泰工业科技股份有限公司 | A kind of motor stator＆rotor blanking piece production technology |
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| CN110014081A (en) | 2019-07-16 |
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