CN104143886A - Machining method for stator punching sheet - Google Patents
Machining method for stator punching sheet Download PDFInfo
- Publication number
- CN104143886A CN104143886A CN201410369548.3A CN201410369548A CN104143886A CN 104143886 A CN104143886 A CN 104143886A CN 201410369548 A CN201410369548 A CN 201410369548A CN 104143886 A CN104143886 A CN 104143886A
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- punching
- stator
- processing method
- stator punching
- groove
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Abstract
The invention discloses a machining method for a stator punching sheet. The method comprises the following steps that a punching process is adopted for punching each rectangular sheet-like prefabricated punching sheet to form two rows of separable stator tooth groove structures, each row of the stator tooth groove structures defines one punching sheet section which is provided with a plurality of winding grooves and can be bent into an arc shape, and one or more punching sheet sections are connected in an end-to-end mode to splice the stator punching sheet. According to the machining method for the stator punching sheet, as the two punching sheet sections are punched on one rectangular sheet-like prefabricated punching sheet, and one or more punching sheet sections are connected in the end-to-end mode to splice the stator punching sheet, a large number of materials can be saved, and the production cost can be reduced.
Description
Technical field
The present invention relates to the manufacture field of motor, especially relate to a kind of processing method of stator punching.
Background technology
In conventional motors, stator is all to adopt a bulk silicon steel disc to be stamped to form mostly, is not only not easy to the machine-shaping of stator, and causes a lot of waste materials, and stock utilization is not high, and causes cost sharply to rise.
Summary of the invention
The present invention is intended to solve at least to a certain extent one of technical problem in correlation technique.For this reason, one object of the present invention is to propose a kind of processing method of stator punching, saves material.
According to the processing method of the stator punching of the embodiment of the present invention, comprise the steps: to adopt Sheet Metal Forming Technology to become double separable stator tooth slot structure the every prefabricated punching upper punch of rectangle sheet swaging, the structure qualification of the described stator teeth groove of every row goes out a punching section with a plurality of winding slots and bent camber; One or more described punching sections are joined end to end to splice described stator punching.
According to the processing method of the stator punching of the embodiment of the present invention, by stamp out two punching sections in a prefabricated punching of rectangle sheet, by one or more punching sections, join end to end to splice stator punching again, thereby can save lot of materials, reduce production costs.
In addition, the processing method of stator punching according to the above embodiment of the present invention can also have following additional technical characterictic:
In a specific embodiment of the present invention, adopt Sheet Metal Forming Technology to form draw-in groove in one end of described punching section punching press, the other end punching press of described punching section forms buckle, and described one or more punching sections splice described stator punching by the cooperation of described buckle and described draw-in groove.
Further, in the junction of described buckle and described draw-in groove, weld and/or injection moulding.
In another specific embodiment of the present invention, described one or described a plurality of punching section splice described stator punching by welding or riveting mode.
According to some embodiments of the present invention, in the both sides of the prefabricated punching of described rectangle sheet, stamp out respectively dashpot, the opening of described dashpot is positioned in the respective side walls of the prefabricated punching of described rectangle sheet.
Preferably, described dashpot is a plurality of and evenly spaced apart along the length direction of the prefabricated punching of described rectangle sheet.
Particularly, described dashpot comprises connected first and second portion, described first is circular hole, and described second portion forms the passage that extends to the strip in described respective side walls, and the distance maximum between the opposing sidewalls of described passage is less than the diameter of described first.
Alternatively, described second portion is crooked extends.
Accompanying drawing explanation
Fig. 1 is according to the flow chart of the processing method of the stator punching of the embodiment of the present invention;
Fig. 2 is according to the schematic diagram of the stator punching of the embodiment of the present invention;
Fig. 3 is according to the schematic diagram of the punching section of the stator punching of the specific embodiment of the invention;
Fig. 4 for stamping out according to an embodiment of the invention the schematic diagram of two row's punching sections in a prefabricated punching of rectangle sheet;
Fig. 5 for stamping out in accordance with another embodiment of the present invention the schematic diagram of two row's punching sections in a prefabricated punching of rectangle sheet.
Reference numeral:
Stator punching 100,
Punching section 1, winding slot 10, draw-in groove 11, buckle 12, the first plane 13, the second plane 14, yoke portion 15, tooth portion 16, dashpot 17, first 170, second portion 171.
Embodiment
Describe embodiments of the invention below in detail, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of identical or similar functions from start to finish.Below by the embodiment being described with reference to the drawings, be exemplary, be intended to for explaining the present invention, and can not be interpreted as limitation of the present invention.
In description of the invention, it will be appreciated that, term " " center ", " longitudinally ", " laterally ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " axially ", " radially ", orientation or the position relationship of indications such as " circumferentially " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, rather than device or the element of indication or hint indication must have specific orientation, with specific orientation structure and operation, therefore can not be interpreted as limitation of the present invention.
In addition, term " first ", " second " be only for describing object, and can not be interpreted as indication or hint relative importance or the implicit quantity that indicates indicated technical characterictic.Thus, one or more these features can be expressed or impliedly be comprised to the feature that is limited with " first ", " second ".In description of the invention, the implication of " a plurality of " is two or more, unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, the terms such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and for example, can be to be fixedly connected with, and can be also to removably connect, or be integral; It can be mechanical connection; Can be to be directly connected, also can indirectly be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements.For the ordinary skill in the art, can understand as the case may be above-mentioned term concrete meaning in the present invention.
Below with reference to Fig. 1-Fig. 5, describe in detail according to the processing method of the stator punching of the embodiment of the present invention.
As shown in Figure 1, the processing method according to the stator punching of the embodiment of the present invention, comprises the steps:
Adopt Sheet Metal Forming Technology to become double separable stator tooth slot structure the every prefabricated punching upper punch of rectangle sheet swaging, the sub-tooth slot structure that is often ranked limits a punching section with a plurality of winding slots and bent camber, that is to say, by adopting diel to stamp out two separable punching sections in the every prefabricated punching of rectangle sheet, each punching section has a plurality of winding slots and bent camber.Wherein as shown in Figure 4, if needs two are ranked, between sub-tooth slot structure, have certain gap, adopt the mould that machining accuracy is lower, due to the impact of mould cutter, the size in this gap is not less than the thickness of tooling blade.As shown in Figure 5, if need the two not preset clearances that are ranked between sub-tooth slot structure, adopt the mould that machining accuracy is high.
One or more punching sections are joined end to end to splice stator punching.Particularly, the bent camber of punching section, when stator punching is spliced by a punching section, is connected the two ends of this punching section to splice the stator punching of annular.When stator punching is spliced by two punching sections, the two ends of one of them punching section are connected to splice respectively the stator punching of annular with the two ends of another punching section.So analogize, when stator punching is spliced by more than three or three punching sections, more than three or three punching sections are joined end to end to splice stator punching successively.
Wherein, the connected mode of punching section comprises welding, the connection of draw-in groove buckle, riveted joint etc., particularly, one or more punching sections can splice stator punching by the cooperation of buckle and draw-in groove, or one or more punching section splices stator punching by welding or riveting mode.When punching section adopts buckle draw-in groove to coordinate, in order to improve the structural strength of the stator punching that splices, can weld in the junction of buckle and draw-in groove and/or injection moulding to reinforce.
According to the processing method of the stator punching of the embodiment of the present invention, by stamp out two punching sections in a prefabricated punching of rectangle sheet, by one or more punching sections, join end to end to splice stator punching again, thereby can save lot of materials, reduce production costs.
Below with reference to Fig. 3, describe the concrete structure that adopts the punching section processing according to the processing method of the stator punching of the specific embodiment of the invention in detail.
As shown in Figure 3, on the length direction of punching section 1, adopt Sheet Metal Forming Technology to form draw-in groove 11 in one end of punching section 1 punching press, the other end punching press of punching section 1 forms buckle 12, and the shape of buckle 12 is identical with the shape of draw-in groove 11.For fear of buckle 12, in draw-in groove 11, come off, the opening of draw-in groove 11 is narrowed laterally gradually by inner side, wherein inner side refers on the length direction of punching section 1 direction towards buckle 12, and outside refers on the length direction of punching section 1 direction away from buckle 12.
At the opening from draw-in groove 11, the direction of the diapire of draw-in groove 11, the opposing sidewalls of draw-in groove 11 forms the plane that tilts and extend in direction away from each other.Particularly, the opposing sidewalls of draw-in groove 11 is respectively the first plane 13 and the second plane 14, the first plane 13 is in the extension that tilts of the direction away from the second plane 14, the second plane 14 is in the extension that tilts of the direction away from the first plane 13, in other words, at the opening from draw-in groove 11, the direction of the diapire of draw-in groove 11, the distance between the first plane 13 and the second plane 14 increases gradually, thereby be not only convenient to the machine-shaping of draw-in groove 11, avoid buckle 12 to come off in draw-in groove 11 simultaneously.What certainly can understand is, the shape of buckle 12 and draw-in groove 11 is not limited to this, buckle 12 and draw-in groove 11 can also form respectively other shapes, and for example the opposing sidewalls of draw-in groove 11 can form arcwall face, as long as guarantee that buckle 12 can coordinate with draw-in groove 11 and be difficult for coming off in draw-in groove 11.
Punching section 1 comprises yoke portion 15 and a plurality of even spaced tooth portion 16 of bent camber, a plurality of tooth portion 16 is located on the first side wall of yoke portion 15 and two adjacent tooth portions 16 limit a winding slot 10, and draw-in groove 11 and buckle 12 are located at respectively the two ends of yoke portion 15.Thereby by curved yoke portion 15 so that buckle 12 and draw-in groove 11 coordinate to splice the stator punching 100 of annular.
Yoke portion 15 is provided with dashpot 17, the opening that dashpot 17 runs through yoke portion 15 and dashpot 17 on the thickness direction of yoke portion 15 is positioned on second sidewall relative with the first side wall of yoke portion 15, in other words, the first side wall and the second sidewall are oppositely arranged, the opening of dashpot 17 is positioned on the second sidewall, and dashpot 17 is recessed and on thickness direction, run through yoke portion 15 towards the first side wall.Thereby by being provided with dashpot 17, can cushion the metal tension force that yoke portion 15 produces in bending process, reduce the deflection of punching section 1.
Particularly, in the course of processing of stator punching 100, in the both sides of the prefabricated punching of rectangle sheet, stamp out respectively dashpot, the opening of dashpot is positioned in the respective side walls of the prefabricated punching of rectangle sheet.
The number of dashpot 17 is five, and five dashpots 17 (are equivalent to along the length direction of the prefabricated punching of rectangle sheet) evenly spaced apart on the length direction of yoke portion 15.Thereby can further cushion the metal tension force that yoke portion 15 produces in bending process.Be understandable that, the number of dashpot 17 is not limited to this, and the number of dashpot 17 can limit according to actual conditions.
Dashpot 17 comprises connected first 170 and second portion 171, first 170 is circular hole, second portion 171 forms the passage that extends to the strip on the second sidewall, second portion 171 is crooked to be extended, and the distance maximum between the opposing sidewalls of passage 171 is less than the diameter of first 170.Thereby on the basis of buffering effect that guarantees dashpot 17, be convenient to the machine-shaping of dashpot 17.Certainly can understand, dashpot 17 can also form other shapes, as long as can play the metal tension force that buffering yoke portion 15 produces in bending process.
In the present invention, unless otherwise clearly defined and limited, First Characteristic Second Characteristic " on " or D score can be that the first and second features directly contact, or the first and second features are by intermediary indirect contact.And, First Characteristic Second Characteristic " on ", " top " and " above " but First Characteristic directly over Second Characteristic or oblique upper, or only represent that First Characteristic level height is higher than Second Characteristic.First Characteristic Second Characteristic " under ", " below " and " below " can be First Characteristic under Second Characteristic or tiltedly, or only represent that First Characteristic level height is less than Second Characteristic.
In the description of this specification, the description of reference term " embodiment ", " some embodiment ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present invention or example in conjunction with specific features, structure, material or the feature of this embodiment or example description.In this manual, to the schematic statement of above-mentioned term not must for be identical embodiment or example.And, the specific features of description, structure, material or feature can one or more embodiment in office or example in suitable mode combination.In addition,, not conflicting in the situation that, those skilled in the art can carry out combination and combination by the feature of the different embodiment that describe in this specification or example and different embodiment or example.
Although illustrated and described embodiments of the invention above, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, and those of ordinary skill in the art can change above-described embodiment within the scope of the invention, modification, replacement and modification.
Claims (8)
1. a processing method for stator punching, is characterized in that, comprises the steps:
Adopt Sheet Metal Forming Technology to become double separable stator tooth slot structure the every prefabricated punching upper punch of rectangle sheet swaging, the structure qualification of the described stator teeth groove of every row goes out a punching section with a plurality of winding slots and bent camber;
One or more described punching sections are joined end to end to splice described stator punching.
2. the processing method of stator punching according to claim 1, it is characterized in that, adopt Sheet Metal Forming Technology to form draw-in groove in one end of described punching section punching press, the other end punching press of described punching section forms buckle, and described one or more punching sections splice described stator punching by the cooperation of described buckle and described draw-in groove.
3. the processing method of stator punching according to claim 2, is characterized in that, in the junction of described buckle and described draw-in groove, welds and/or injection moulding.
4. the processing method of stator punching according to claim 1, described one or described a plurality of punching section splice described stator punching by welding or riveting mode.
5. the processing method of stator punching according to claim 1, is characterized in that, in the both sides of the prefabricated punching of described rectangle sheet, stamps out respectively dashpot, and the opening of described dashpot is positioned in the respective side walls of the prefabricated punching of described rectangle sheet.
6. the processing method of stator punching according to claim 5, is characterized in that, described dashpot is a plurality of and evenly spaced apart along the length direction of the prefabricated punching of described rectangle sheet.
7. the processing method of stator punching according to claim 5, it is characterized in that, described dashpot comprises connected first and second portion, described first is circular hole, described second portion forms the passage that extends to the strip in described respective side walls, and the distance maximum between the opposing sidewalls of described passage is less than the diameter of described first.
8. the processing method of stator punching according to claim 7, is characterized in that, described second portion is crooked to be extended.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410369548.3A CN104143886A (en) | 2014-07-30 | 2014-07-30 | Machining method for stator punching sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410369548.3A CN104143886A (en) | 2014-07-30 | 2014-07-30 | Machining method for stator punching sheet |
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| Publication Number | Publication Date |
|---|---|
| CN104143886A true CN104143886A (en) | 2014-11-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410369548.3A Pending CN104143886A (en) | 2014-07-30 | 2014-07-30 | Machining method for stator punching sheet |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104578473A (en) * | 2014-12-25 | 2015-04-29 | 广东威灵电机制造有限公司 | Precast lamination, stator lamination, stator and motor |
| CN104578613A (en) * | 2014-12-25 | 2015-04-29 | 广东威灵电机制造有限公司 | Stator manufacturing method |
| CN105162267A (en) * | 2015-08-21 | 2015-12-16 | 湖州南洋电机有限公司 | Spliced stator core and manufacturing method thereof |
| CN105262246A (en) * | 2015-10-10 | 2016-01-20 | 常州大学怀德学院 | Long strip-shaped silicon steel punching sheet of brushless DC motor and stator comprising same |
| CN106787276A (en) * | 2016-12-30 | 2017-05-31 | 重庆瑜欣平瑞电子股份有限公司 | A kind of stator core and its processing method |
| CN106862384A (en) * | 2017-04-26 | 2017-06-20 | 佛山市传恒机电制造有限公司 | A kind of core manufacturing method and iron core |
| CN113765246A (en) * | 2021-09-26 | 2021-12-07 | 浙江实日机电科技有限公司 | Production process of iron core punching strip |
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| JPH11289695A (en) * | 1998-03-31 | 1999-10-19 | Toshiba Corp | Electric motor core |
| CN203445709U (en) * | 2013-09-09 | 2014-02-19 | 苏州腾龙电机科技有限公司 | Iron core structure and motor |
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| JPH0779551A (en) * | 1993-09-09 | 1995-03-20 | Sankyo Seiki Mfg Co Ltd | Manufacture of iron core for electric appliance |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104578473A (en) * | 2014-12-25 | 2015-04-29 | 广东威灵电机制造有限公司 | Precast lamination, stator lamination, stator and motor |
| CN104578613A (en) * | 2014-12-25 | 2015-04-29 | 广东威灵电机制造有限公司 | Stator manufacturing method |
| CN104578613B (en) * | 2014-12-25 | 2017-09-19 | 广东威灵电机制造有限公司 | The manufacture method of stator |
| CN104578473B (en) * | 2014-12-25 | 2017-10-17 | 广东威灵电机制造有限公司 | Prefabricated punching, stator punching, Stator and electrical machine |
| CN105162267A (en) * | 2015-08-21 | 2015-12-16 | 湖州南洋电机有限公司 | Spliced stator core and manufacturing method thereof |
| CN105162267B (en) * | 2015-08-21 | 2019-03-19 | 湖州南洋电机有限公司 | A kind of spliced stator core and its manufacturing method |
| CN105262246A (en) * | 2015-10-10 | 2016-01-20 | 常州大学怀德学院 | Long strip-shaped silicon steel punching sheet of brushless DC motor and stator comprising same |
| CN106787276A (en) * | 2016-12-30 | 2017-05-31 | 重庆瑜欣平瑞电子股份有限公司 | A kind of stator core and its processing method |
| CN106862384A (en) * | 2017-04-26 | 2017-06-20 | 佛山市传恒机电制造有限公司 | A kind of core manufacturing method and iron core |
| CN106862384B (en) * | 2017-04-26 | 2018-10-16 | 佛山市传恒机电制造有限公司 | A kind of core manufacturing method and iron core |
| CN113765246A (en) * | 2021-09-26 | 2021-12-07 | 浙江实日机电科技有限公司 | Production process of iron core punching strip |
| CN113765246B (en) * | 2021-09-26 | 2022-08-26 | 浙江实日机电科技有限公司 | Production process of iron core punching strip |
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