JP2000050579A - Manufacture of motor core - Google Patents
Manufacture of motor coreInfo
- Publication number
- JP2000050579A JP2000050579A JP10230032A JP23003298A JP2000050579A JP 2000050579 A JP2000050579 A JP 2000050579A JP 10230032 A JP10230032 A JP 10230032A JP 23003298 A JP23003298 A JP 23003298A JP 2000050579 A JP2000050579 A JP 2000050579A
- Authority
- JP
- Japan
- Prior art keywords
- stator
- shaving
- rotor
- circumferential surface
- inner circumferential
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Manufacture Of Motors, Generators (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】金属条材から鉄心片を打ち抜
き、積層するモータ用鉄心の製造方法に関し、特に、モ
ータ用鉄心の極歯部にシェービング加工を行い、積層す
るモータ用鉄心の製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a motor core in which iron core pieces are punched out of a metal strip and laminated, and more particularly to a method for manufacturing a motor core in which pole teeth of the motor core are subjected to shaving and laminated. .
【０００２】[0002]
【従来の技術】従来、モータ用鉄心はロータ及びステー
タからなり、プレス金型により金属条材から鉄心片を打
ち抜き、積層する方法によって製造されるが、プレス金
型による打ち抜きでは、加工面にダレや破断部が形成さ
れるため、積層される鉄心片の極歯部において、側面お
よび円周面にダレや破断部が形成される。2. Description of the Related Art Conventionally, an iron core for a motor comprises a rotor and a stator, and is manufactured by punching and laminating iron core pieces from a metal strip using a press die. In this case, sagging and broken portions are formed on the side surfaces and circumferential surfaces of the pole teeth of the iron core pieces to be laminated.
【０００３】極歯部の側面および円周面にダレや破断部
が形成されると、ロータ及びステータの円周面の面積が
小さくなり、その結果、モータの特性を低下させる要因
となっていた。When sagging or broken portions are formed on the side surface and the circumferential surface of the pole teeth portion, the area of the circumferential surface of the rotor and the stator is reduced, and as a result, the characteristics of the motor are reduced. .
【０００４】そこで、ステータ及びロータ極歯部の側面
および円周面を形成する方法に、シェービング加工を用
いる方法が提案されている。Accordingly, a method using shaving has been proposed as a method for forming the side surfaces and the circumferential surface of the stator and rotor pole teeth.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、金属条
材のステータ形成領域の内径領域を利用してロータを形
成する場合、モータの特性を向上させるために、ステー
タの内周面とロータの外周面の間隔を極めて狭くしなけ
ればならない。However, when the rotor is formed by utilizing the inner diameter region of the stator forming region of the metal strip, the inner peripheral surface of the stator and the outer peripheral surface of the rotor are required to improve the characteristics of the motor. Must be extremely narrow.
【０００６】しかしながら、シェービング加工を行う場
合、シェービング代が必要となり、ロータ外周面とステ
ータ内周面の間隔が広くなってしまうため、ステータの
内周面にシェービング加工を行うことができなかった。However, when performing shaving, a shaving allowance is required, and the distance between the outer peripheral surface of the rotor and the inner peripheral surface of the stator is increased, so that the inner peripheral surface of the stator cannot be subjected to shaving.
【０００７】本発明は、ステータ形成領域の内径領域を
利用してロータを形成するモータ用鉄心片の製造方法に
おいて、ステータ内周面にシェービング加工を行うこと
ができるモータ用鉄心片の製造方法を提供することを目
的とする。The present invention relates to a method of manufacturing a motor core piece for forming a rotor using an inner diameter region of a stator forming area, wherein a method of manufacturing a motor core piece capable of performing shaving processing on an inner peripheral surface of a stator is provided. The purpose is to provide.
【０００８】[0008]
【課題を解決するための手段】本発明の特徴は、ステー
タ形成領域の内径領域を利用してロータを形成し、ステ
ータ内周面にシェービング加工を行うモータ用鉄心の製
造方法であって、ステータをコイニングし、ステータの
内周面を径内方向へ押し出すことにある。A feature of the present invention is a method of manufacturing a motor core in which a rotor is formed using an inner diameter region of a stator forming region and shaving is performed on an inner peripheral surface of the stator. And extruding the inner peripheral surface of the stator radially inward.
【０００９】また、特には、前記シェービング加工に半
抜きシェービング加工を用いることにある。[0009] In particular, the present invention is characterized in that a half blanking shaving process is used for the shaving process.
【００１０】[0010]
【発明の実施形態】以下、本発明の実施形態について説
明する。Embodiments of the present invention will be described below.
【００１１】本発明のモータ用鉄心片の製造方法は、ス
テータ形成領域の内径領域を利用してロータを形成し、
ステータ内周面にシェービング加工を行うモータ用鉄心
の製造方法であって、ロータを形成した後、ステータ内
周面にシェービング加工を行う前、途中、若しくは後に
ステータをコイニングし、ステータの内周面を径内方向
へ押し出すモータ用鉄心の製造方法である。According to the method of manufacturing a motor core piece of the present invention, a rotor is formed by utilizing an inner diameter region of a stator formation region.
A method for manufacturing a motor iron core in which a shaving process is performed on an inner peripheral surface of a stator. This is a method for manufacturing a motor iron core for extruding a core in a radial direction.
【００１２】本実施形態によれば、ステータにコイニン
グを行い、ステータ内周面を径内側に押し出すため、ス
テータ内周面にシェービング加工を行っても、ロータ外
周面とステータ内周面の間隔を狭くすることができるの
で、モータの特性を損なうことがない。According to the present embodiment, since the stator is coined and the inner peripheral surface of the stator is extruded radially inward, even if shaving is performed on the inner peripheral surface of the stator, the distance between the outer peripheral surface of the rotor and the inner peripheral surface of the stator is reduced. Since it can be narrowed, the characteristics of the motor are not impaired.
【００１３】また、上記の実施形態ではシェービング加
工に半抜きシェービング加工を用いた。In the above-described embodiment, the half-blanking shaving process is used for the shaving process.
【００１４】よって、本実施形態のように、狭い領域を
シェービング加工する際に抜きカスが小さいために問題
となるカス上がりを防止することができる。Therefore, as in the present embodiment, when shaving is performed on a narrow area, it is possible to prevent the rise of the scrap, which is a problem because the scrap is small.
【００１５】[0015]
【実施例１】以下本発明の実施例につき、図面を参照し
つつ詳細に説明する。Embodiment 1 Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.
【００１６】本実施例では、順送り金型を用いたプレス
加工を行い、金属条材からステータ形成領域の内径領域
を利用してロータを形成するモータ用鉄心の製造方法で
あって、ステータ用鉄心をシェービング加工する例につ
いて説明する。The present embodiment is a method for manufacturing a motor core in which a rotor is formed from a metal strip material by using a progressive die and utilizing the inner diameter region of a stator forming region. An example of shaving processing will be described.
【００１７】図１（ａ）に示すように、金属条材１か
ら、パイロット孔２及びロータ軸孔３を打ち抜き、その
後、図１（ｂ）に示すように、ロータ外周４を打ち抜く
とともに積層し、ロータ鉄心を形成する。As shown in FIG. 1A, a pilot hole 2 and a rotor shaft hole 3 are punched from a metal strip 1. Thereafter, as shown in FIG. 1B, a rotor outer periphery 4 is punched and laminated. , Forming the rotor core.
【００１８】次に、図１（ｃ）に示すように、ステータ
のスロット部５を形成し、図１（ｄ）に示すように、ス
テータのコイニング領域６をコイニングし、ステータ内
周面７を径内方向へ押し出す。Next, as shown in FIG. 1 (c), a slot portion 5 of the stator is formed, and as shown in FIG. 1 (d), a coining area 6 of the stator is coined, and a stator inner peripheral surface 7 is formed. Extrude inward.
【００１９】次に、図１（ｅ）に示すようにステータ内
周面７からシェービング代分離間した半抜き領域８（破
線で示す）を半抜きする。Next, as shown in FIG. 1 (e), a half blanking area 8 (shown by a broken line) is separated from the inner peripheral surface 7 of the stator by a shaving allowance separation.
【００２０】次に、図１（ｆ）に示すように、前工程で
半抜きした半抜き領域８及びシェービング代を含む領域
を半抜き方向と同一方向に打ち抜き、ステータ内周面７
をシェービング加工する。Next, as shown in FIG. 1 (f), the half-punched area 8 and the area including the shaving allowance are punched out in the same direction as the half-punching direction.
Shaving process.
【００２１】次に、図１（ｇ）に示すように、ステータ
極歯部９の形状加工を行い、図１（ｈ）に示すように、
ステータ外形１０を打ち抜くとともに積層し、ステータ
鉄心を形成する。Next, as shown in FIG. 1 (g), the shape processing of the stator pole teeth 9 is performed, and as shown in FIG. 1 (h),
The stator outer shape 10 is punched out and laminated to form a stator core.
【００２２】以上の方法によれば、ステータの内周面７
を径内方向へ押し出すようにコイニングするため、ステ
ータ内周面７にシェービング加工を行っても、ロータ外
周４とステータ外周面７の間隔を狭く形成することがで
きる。According to the above method, the inner peripheral surface 7 of the stator
Is extruded radially inward, so that even if the inner circumferential surface 7 of the stator is subjected to shaving, the distance between the outer circumferential surface 4 of the rotor and the outer circumferential surface 7 of the stator can be formed to be narrow.
【００２３】本実施例では、ステータをコイニングした
後に、半抜き工程及びシェービング加工を行ったが、コ
イニングは半抜き工程後またはシェービング加工後でも
よい。In this embodiment, the half blanking step and the shaving process are performed after the stator is coined. However, the coining may be performed after the half blanking step or after the shaving process.
【００２４】しかしながら、ステータ内周面７の寸法精
度を考えると、半抜き工程前もしくはシェービング加工
前に行うことが好ましい。However, considering the dimensional accuracy of the inner circumferential surface 7 of the stator, it is preferable to perform the process before the half blanking process or before the shaving process.
【００２５】また、本実施例では、半抜き工程の後にシ
ェービング加工を行う半抜きシェービング加工を行った
が、このようにすると抜きカスを大きくすることがで
き、カス上がりを防止することができる。Further, in this embodiment, the half-blanking shaving process in which the shaving process is performed after the half-blanking process is performed. However, in this case, the size of the scrap can be increased, and the scrap can be prevented from rising.
【００２６】しかしながら、半抜きシェービング加工を
行うことは、任意であり、シェービング加工の前にシェ
ービング代を残して完全抜き落とす通常のシェービング
加工を行ってもよい。However, it is optional to perform the half shaving process, and a normal shaving process may be performed in which the shaving process is performed before the shaving process, leaving a shaving allowance.
【００２７】また、本実施例では、ステータ内周面７の
みをシェービング加工したが、ステータ極歯部側面をシ
ェービング加工してもよく、その場合、ステータ内周面
７およびステータ極歯部間を同時に打ち抜くスプライン
抜きを、シェービング加工で行えばよく、この方法によ
れば、カス上がりを防止することができる。In this embodiment, only the stator inner peripheral surface 7 is shaved. However, the side surfaces of the stator pole teeth may be shaved. In this case, the gap between the stator inner peripheral surface 7 and the stator pole teeth is removed. At the same time, the splines to be punched may be removed by shaving, and according to this method, it is possible to prevent scraps from rising.
【００２８】また、本実施例では、ステータのみにコイ
ニング及びシェービング加工を行ったが、ロータにコイ
ニング及びシェービング加工してもよく、その場合、ま
ず、ロータ極歯部側面を各側面毎に打ち抜き、次に、ロ
ータ極歯部外周面からシェービング代分離間した半抜き
領域に半抜き加工を行い、次に、半抜き領域およびシェ
ービング代を含むシェービング抜き領域を半抜き方向と
同一方向から打ち抜き、ロータ極歯部外周面にシェービ
ング加工し、次に、ロータ極歯部にロータ外周面が径外
方向に押し出されるようにコイニング加工を行い、次
に、ロータ極歯部側面間を打ち抜きロータを金属条材か
ら離間させればよい。Further, in the present embodiment, coining and shaving are performed only on the stator. However, coining and shaving may be performed on the rotor. In this case, first, the rotor pole teeth side faces are punched out for each side face. Next, half-blanking processing is performed on the half-blanking area separated from the outer peripheral surface of the rotor pole tooth part by shaving allowance separation, and then the half-blanking area and the shaving-blanking area including the shaving allowance are punched out in the same direction as the half-blanking direction. Shaving is performed on the outer peripheral surface of the pole teeth, and then coining is performed on the rotor outer teeth so that the outer peripheral surface of the rotor is extruded radially outward. It may be separated from the material.
【００２９】[0029]
【発明の効果】以上の本発明によれば、ステータ形成領
域の内径領域を利用してロータを形成するモータ用鉄心
の製造方法において、ステータの内周面にシェービング
加工を行っても、ステータ内周面とロータ外周面の間隔
を狭くすることができるため、モータの特性を向上させ
ることができる。According to the present invention, in a method of manufacturing a motor core in which a rotor is formed using an inner diameter region of a stator forming region, even if the inner peripheral surface of the stator is subjected to shaving, Since the distance between the peripheral surface and the outer peripheral surface of the rotor can be reduced, the characteristics of the motor can be improved.
【００３０】また、半抜きシェービング加工を用いる
と、シェービング加工における抜きカスを大きくするこ
とができ、カス上がりを防止することができる。Further, when the half-blanking shaving process is used, it is possible to increase the amount of scum in the shaving process and prevent the scum from rising.
【図１】本発明の実施例１の打ち抜き工程を示す図であ
る。FIG. 1 is a diagram illustrating a punching step according to a first embodiment of the present invention.
１ 金属材料 ２ パイロット孔 ３ ロータ軸孔 ４ ロータ外周 ５ スロット部 ６ コイニング領域 ７ ステータ内周面 ８ 半抜き領域 ９ ステータ極歯部 １０ ステータ外形 DESCRIPTION OF SYMBOLS 1 Metal material 2 Pilot hole 3 Rotor shaft hole 4 Rotor outer periphery 5 Slot part 6 Coining area 7 Stator inner peripheral surface 8 Half blanking area 9 Stator pole tooth part 10 Stator outer shape
Claims (2)
ロータを形成し、ステータ内周面にシェービング加工を
行うモータ用鉄心の製造方法であって、ステータをコイ
ニングしてステータの内周面を径内方向へ押し出す工程
を含むことを特徴とするモータ用鉄心の製造方法。1. A method of manufacturing a motor core, wherein a rotor is formed by utilizing an inner diameter region of a stator forming region and shaving is performed on an inner peripheral surface of the stator, wherein the inner peripheral surface of the stator is coined by coining the stator. A method for manufacturing an iron core for a motor, comprising a step of extruding in a radial direction.
ング加工を用いることを特徴とする請求項１に記載のモ
ータ用鉄心の製造方法。2. The method of manufacturing a motor core according to claim 1, wherein a half blanking shaving process is used for the shaving process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10230032A JP2000050579A (en) | 1998-07-30 | 1998-07-30 | Manufacture of motor core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10230032A JP2000050579A (en) | 1998-07-30 | 1998-07-30 | Manufacture of motor core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000050579A true JP2000050579A (en) | 2000-02-18 |
Family
ID=16901509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10230032A Pending JP2000050579A (en) | 1998-07-30 | 1998-07-30 | Manufacture of motor core |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000050579A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001089065A1 (en) * | 2000-05-18 | 2001-11-22 | Mitsui High-Tec. Inc. | Method of producing laminated iron cores |
| WO2006022392A1 (en) * | 2004-08-25 | 2006-03-02 | Mitsuba Corporation | Device for shaving projection formed on flywheel and method of shaving projection |
| WO2008093722A1 (en) | 2007-01-30 | 2008-08-07 | Arkray, Inc. | Method for detection of phenothiazine derivative dye, and color-developer reagent for use in the method |
| CN101976915A (en) * | 2010-09-19 | 2011-02-16 | 葛明 | Turning-free automatic processing technology of motor rotor after centrifugal casting and device |
| JP2011182619A (en) * | 2010-03-04 | 2011-09-15 | Kuroda Precision Ind Ltd | Method and device for manufacturing stacked iron core |
| JP2011182620A (en) * | 2010-03-04 | 2011-09-15 | Kuroda Precision Ind Ltd | Method and device for manufacturing stacked iron core |
| JP2011199923A (en) * | 2010-03-17 | 2011-10-06 | Mitsui High Tec Inc | Method of manufacturing laminated core |
| WO2018012599A1 (en) * | 2016-07-13 | 2018-01-18 | 日本発條株式会社 | Rotor core steel sheet, method for manufacturing said rotor core steel sheet, and rotor |
-
1998
- 1998-07-30 JP JP10230032A patent/JP2000050579A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001089065A1 (en) * | 2000-05-18 | 2001-11-22 | Mitsui High-Tec. Inc. | Method of producing laminated iron cores |
| US6718616B2 (en) | 2000-05-18 | 2004-04-13 | Mitsui High-Tec, Inc. | Method of producing laminated iron cores |
| WO2006022392A1 (en) * | 2004-08-25 | 2006-03-02 | Mitsuba Corporation | Device for shaving projection formed on flywheel and method of shaving projection |
| WO2008093722A1 (en) | 2007-01-30 | 2008-08-07 | Arkray, Inc. | Method for detection of phenothiazine derivative dye, and color-developer reagent for use in the method |
| JP2011182619A (en) * | 2010-03-04 | 2011-09-15 | Kuroda Precision Ind Ltd | Method and device for manufacturing stacked iron core |
| JP2011182620A (en) * | 2010-03-04 | 2011-09-15 | Kuroda Precision Ind Ltd | Method and device for manufacturing stacked iron core |
| JP2011199923A (en) * | 2010-03-17 | 2011-10-06 | Mitsui High Tec Inc | Method of manufacturing laminated core |
| CN101976915A (en) * | 2010-09-19 | 2011-02-16 | 葛明 | Turning-free automatic processing technology of motor rotor after centrifugal casting and device |
| WO2018012599A1 (en) * | 2016-07-13 | 2018-01-18 | 日本発條株式会社 | Rotor core steel sheet, method for manufacturing said rotor core steel sheet, and rotor |
| JPWO2018012599A1 (en) * | 2016-07-13 | 2019-05-09 | 日本発條株式会社 | Rotor core steel plate, method for manufacturing the same, and rotor |
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