JP2021016252A - Laminated iron core manufacturing method and laminated iron core manufacturing device for rotary electric machine and rotary electric machine - Google Patents

Laminated iron core manufacturing method and laminated iron core manufacturing device for rotary electric machine and rotary electric machine Download PDF

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JP2021016252A
JP2021016252A JP2019129847A JP2019129847A JP2021016252A JP 2021016252 A JP2021016252 A JP 2021016252A JP 2019129847 A JP2019129847 A JP 2019129847A JP 2019129847 A JP2019129847 A JP 2019129847A JP 2021016252 A JP2021016252 A JP 2021016252A
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plate
shaped
stator core
punching
core element
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JP6877495B2 (en
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翔太 吉岡
Shota YOSHIOKA
翔太 吉岡
聖士 中野
Seiji Nakano
聖士 中野
中野　正嗣
Masatsugu Nakano
正嗣 中野
健太郎 小塚
Kentaro Kozuka
健太郎 小塚
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Mitsubishi Electric Corp
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Mitsubishi Electric Corp
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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
    • H02K15/024—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies with slots
    • H02K15/026—Wound cores
    • 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
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12—Stationary parts of the magnetic circuit
    • H02K1/16—Stator cores with slots for windings
    • H02K1/165—Shape, form or location of the slots
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
    • H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/64—Electric machine technologies in electromobility

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacture Of Motors, Generators (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)

Abstract

To enable efficient manufacturing by punching a plurality of plate-shaped stator core elements at the same time in one step with high accuracy.SOLUTION: In a laminated iron core manufacturing method for a rotary electric machine, before a step of punching a plate-shaped rotor core element 21 from a strip-shaped electromagnetic steel plate 4 formed by rolling by a press mechanism 55, in a second region 42 inside a first region 41 for punching the plate-shaped rotor core element 21 of the strip-shaped electromagnetic steel plate 4, a plate-shaped stator core elements 11 are punched out plurally in a plurality of punching steps.SELECTED DRAWING: Figure 2

Description

本願は、回転電機の積層鉄心製造方法及び積層鉄心製造装置並びに回転電機に関するものである。 The present application relates to a method for manufacturing a laminated iron core of a rotary electric machine, a laminated iron core manufacturing apparatus, and a rotary electric machine.

従来の回転子鉄心と固定子鉄心を同じ鋼板から歩留まり良く材料取りする方法（共取り）として、以下のものが開示されている。
特許文献１は回転子鉄心内側から固定子鉄心を複数打ち抜く共取り方法である。
特許文献２は特許文献１よりもさらに歩留まりを向上させた回転子鉄心の外形部からも固定子鉄心を複数打ち抜く共取り方法である。 The following is disclosed as a method (co-removal) of material-removing a conventional rotor core and a stator core from the same steel plate with good yield.
Patent Document 1 is a co-excavation method in which a plurality of stator cores are punched out from the inside of the rotor core.
Patent Document 2 is a co-excavation method in which a plurality of stator cores are punched out from the outer shape of the rotor core, which has a higher yield than Patent Document 1.

特開2002-186227公報JP-A-2002-186227 特開2013-226013公報Japanese Patent Application Laid-Open No. 2013-226013

特許文献１、２に記載の各技術のいずれも、打ち抜き精度及び型の寿命を考慮して、回転子鉄心と固定子鉄心を一度に打ち抜くことはせず、何回かの工程に分けて行われている。しかしながら、複数の板状固定子コアエレメントを１つの工程で同時に精度よく打ち抜く効率的な製造方法は開示も示唆もされていない。 In each of the techniques described in Patent Documents 1 and 2, in consideration of punching accuracy and mold life, the rotor core and the stator core are not punched at the same time, but are divided into several steps. It has been. However, neither disclosure nor suggestion has been made of an efficient manufacturing method for punching a plurality of plate-shaped stator core elements at the same time with high accuracy in one step.

本願は、上記のような実情に鑑みてなされた技術を開示するものであり、複数の板状固定子コアエレメントを１つの工程で同時に精度よく打ち抜く効率的な製造を可能とすることを目的とするものである。 The present application discloses a technique made in view of the above circumstances, and an object of the present application is to enable efficient manufacturing in which a plurality of plate-shaped stator core elements are simultaneously and accurately punched in one step. To do.

本願に開示される回転電機の積層鉄心製造方法は、ティース部とコアバック部とによりＴ字型に形成された板状固定子コアエレメントを軸方向に積層することによって構成された固定子コアエレメント積層ブロックを円周方向に環状に連接することによって構成された固定子コア、および環状の板状回転子コアエレメントを軸方向に積層することによって構成され前記固定子コアに囲繞された回転子コアを有する回転電機の積層鉄心製造方法であって、圧延によって形成された帯状電磁鋼板から前記板状回転子コアエレメントをプレス機構により打ち抜く工程の前に、前記帯状電磁鋼板の前記板状回転子コアエレメントを打ち抜く第１の領域より内側の第２の領域内に、板状固定子コアエレメントを複数工程で複数個ずつ打ち抜くものである。 The method for manufacturing a laminated iron core of a rotary electric machine disclosed in the present application is a stator core element configured by axially laminating a plate-shaped stator core element formed in a T shape by a tooth portion and a core back portion. A stator core formed by connecting laminated blocks in an annular shape in the circumferential direction, and a rotor core configured by laminating an annular plate-shaped rotor core element in the axial direction and surrounded by the stator core. The plate-shaped rotor core of the strip-shaped electromagnetic steel plate before the step of punching the plate-shaped rotor core element from the strip-shaped electromagnetic steel plate formed by rolling by a pressing mechanism. A plurality of plate-shaped stator core elements are punched out in a plurality of steps in a second region inside the first region for punching the element.

本願に開示される回転電機の積層鉄心製造方法では、ティース部とコアバック部とによりＴ字型に形成された板状固定子コアエレメントを軸方向に積層することによって構成された固定子コアエレメント積層ブロックを円周方向に環状に連接することによって構成された固定子コア、および環状の板状回転子コアエレメントを軸方向に積層することによって構成され前記固定子コアに囲繞された回転子コアを有する回転電機の積層鉄心製造方法であって、圧延によって形成された帯状電磁鋼板から前記板状回転子コアエレメントをプレス機構により打ち抜く工程の前に、前記帯状電磁鋼板の前記板状回転子コアエレメントを打ち抜く第１の領域より内側の第２の領域内に、板状固定子コアエレメントを複数の打抜工程で複数個ずつ打ち抜くので、複数の打抜工程の各打抜工程で複数の板状固定子コアエレメントを同時に精度よく打ち抜く効率的な製造が可能となる。 In the method for manufacturing a laminated iron core of a rotary electric machine disclosed in the present application, a stator core element configured by axially laminating a plate-shaped stator core element formed in a T shape by a tooth portion and a core back portion in the axial direction. A stator core formed by connecting laminated blocks in an annular shape in the circumferential direction, and a rotor core configured by laminating an annular plate-shaped rotor core element in the axial direction and surrounded by the stator core. The plate-shaped rotor core of the strip-shaped electromagnetic steel plate before the step of punching the plate-shaped rotor core element from the strip-shaped electromagnetic steel plate formed by rolling by a pressing mechanism. Since a plurality of plate-shaped stator core elements are punched in a second region inside the first region for punching the elements in a plurality of punching steps, a plurality of plates are punched in each punching step in the plurality of punching steps. Efficient manufacturing that punches the shape stator core element with high accuracy at the same time becomes possible.

本願の実施の形態１を示す図で、回転電機の積層鉄心製造方法及び積層鉄心製造装置の対象となる回転電機の一例を示す平面図である。It is a figure which shows Embodiment 1 of this application, and is the top view which shows an example of the rotary electric machine which is the object of the laminated iron core manufacturing method and the laminated iron core manufacturing apparatus of a rotary electric machine. 本願の実施の形態１を示す図で、積層鉄心製造方法の概念を例示する平面図である。It is a figure which shows Embodiment 1 of this application, and is the top view which illustrates the concept of the laminated iron core manufacturing method. 本願の実施の形態１を示す図で、板状固定子コアエレメントの一例を示す平面図である。It is a figure which shows Embodiment 1 of this application, and is the top view which shows an example of a plate-shaped stator core element. 本願の実施の形態１を示す図で、固定子コアエレメント積層ブロックの一例を示す斜視図である。It is a figure which shows Embodiment 1 of this application, and is the perspective view which shows an example of the stator core element laminated block. 本願の実施の形態１を示す図で、積層鉄心製造装置を概略的に例示する正面図である。It is a figure which shows Embodiment 1 of this application, and is the front view which schematically exemplifies the laminated iron core manufacturing apparatus. 本願の実施の形態１を示す図で、積層鉄心製造装置を概略的に例示する平面図である。It is a figure which shows Embodiment 1 of this application, and is the top view which schematically illustrates the laminated iron core manufacturing apparatus. 本願の実施の形態１を示す図で、板状固定子コアエレメントを複数の打抜工程で複数個ずつ打ち抜く方法を説明するための平面図である。It is a figure which shows Embodiment 1 of this application, and is the top view for demonstrating the method of punching a plurality of plate-shaped stator core elements by a plurality of punching steps. 本願の実施の形態２を示す図で、積層鉄心製造方法の概念を例示する平面図である。It is a figure which shows Embodiment 2 of this application, and is the top view which illustrates the concept of the laminated iron core manufacturing method. 本願の実施の形態２を示す図で、板状固定子コアエレメントを複数の打抜工程で複数個ずつ打ち抜く方法を説明するための平面図である。It is a figure which shows Embodiment 2 of this application, and is a top view for demonstrating the method of punching a plurality of plate-shaped stator core elements in a plurality of punching steps. 本願の実施の形態３を示す図で、積層鉄心製造方法の概念を例示する平面図である。It is a figure which shows Embodiment 3 of this application, and is the top view which illustrates the concept of the laminated iron core manufacturing method. 本願の実施の形態３を示す図で、板状固定子コアエレメントを複数の打抜工程で複数個ずつ打ち抜く方法を説明するための平面図である。It is a figure which shows the 3rd Embodiment of this application, and is the top view for demonstrating the method of punching a plurality of plate-shaped stator core elements by a plurality of punching steps. 本願の実施の形態１から３の製造方法による固定子鉄心の特徴を例示する固定子鉄心の平面図である。It is a top view which illustrates the feature of the stator core by the manufacturing method of Embodiment 1 to 3 of this application. 本願の固定子鉄心の他の特徴を例示する固定子鉄心の平面図である。It is a top view of the stator core which illustrates other features of the stator core of this application.

以下に、本願に係る回転電機用積層鉄心の製造方法、製造装置、および回転電機の実施の形態を図面に基づいて説明する。なお、本願は以下の記述に限定されるものではなく、本願の要旨を逸脱しない範囲において適宜変更可能である。以下に示す図面においては、理解の容易のため、各部材の縮尺が実際とは異なる場合があり、また、本願の特徴に関係しない構成の図示は省略する。 Hereinafter, a method for manufacturing a laminated iron core for a rotary electric machine, a manufacturing apparatus, and an embodiment of the rotary electric machine according to the present application will be described with reference to the drawings. The present application is not limited to the following description, and can be appropriately modified without departing from the gist of the present application. In the drawings shown below, the scale of each member may differ from the actual scale for ease of understanding, and the illustration of a configuration not related to the features of the present application is omitted.

実施の形態１．
以下、回転電機の積層鉄心製造方法及び積層鉄心製造装置並びに積層鉄心を有する回転電機の実施の形態１を図１から７、および図１２によって説明する。
図１は回転電機の積層鉄心製造方法及び積層鉄心製造装置の対象となる回転電機の一例を示す平面図、図２は積層鉄心製造方法の概念を例示する平面図、図３は板状固定子コアエレメントの一例を示す平面図、図４は固定子コアエレメント積層ブロックの一例を示す斜視図、図５は積層鉄心製造装置を概略的に例示する正面図、図６は積層鉄心製造装置を概略的に例示する平面図、図７は板状固定子コアエレメントを複数の打抜工程で複数個ずつ打ち抜く方法を説明するための平面図、図１２は固定子鉄心の特徴を例示する固定子鉄心の平面図である。 Embodiment 1.
Hereinafter, a method for manufacturing a laminated iron core of a rotary electric machine, an apparatus for manufacturing a laminated iron core, and a first embodiment of a rotary electric machine having a laminated iron core will be described with reference to FIGS. 1 to 7 and FIG.
FIG. 1 is a plan view showing an example of a rotary electric machine for manufacturing a laminated iron core and a laminated iron core manufacturing apparatus, FIG. 2 is a plan view illustrating the concept of a laminated iron core manufacturing method, and FIG. 3 is a plate-shaped stator. A plan view showing an example of a core element, FIG. 4 is a perspective view showing an example of a stator core element laminated block, FIG. 5 is a front view schematically illustrating a laminated iron core manufacturing apparatus, and FIG. FIG. 7 is a plan view for explaining a method of punching a plurality of plate-shaped stator core elements in a plurality of punching steps, and FIG. 12 is a plan view for explaining the characteristics of the stator core. It is a plan view of.

回転電機の積層鉄心製造方法及び積層鉄心製造装置の対象となる回転電機は、その一例を図１、図３、および図４に例示してあるように、ティース部１１Ｔとコアバック部１１ＣＢとによりＴ字型に形成された板状固定子コアエレメント１１（図３参照）を回転軸３の軸方向に積層することによって構成された固定子コアエレメント積層ブロック１１ＬＢ（図４参照）を、図１に例示のように、円周方向に環状に連接することによって構成された固定子コア、および環状の板状回転子コアエレメント２１を軸方向に積層することによって構成され前記固定子コアに囲繞された回転子コアを有する回転電機である。
円周方向に環状に連接された固定子コアエレメント積層ブロック１１ＬＢ群は、円環状のフレーム１２の内周に強嵌されている。前記強嵌により、円周方向に環状に連接された固定子コアエレメント積層ブロック１１ＬＢ群は、円周方向に環状に連接された状態、つまり図１の状態、を維持している。 The rotary electric machine, which is the target of the laminated iron core manufacturing method and the laminated iron core manufacturing apparatus of the rotary electric machine, is provided by the teeth portion 11T and the core back portion 11CB, as illustrated in FIGS. 1, 3, and 4. FIG. 1 shows a stator core element laminated block 11LB (see FIG. 4) formed by laminating plate-shaped stator core elements 11 (see FIG. 3) formed in a T shape in the axial direction of the rotating shaft 3. As illustrated in the above, the stator core is formed by connecting the stator in an annular shape in the circumferential direction, and the annular plate-shaped rotor core element 21 is formed by laminating in the axial direction and is surrounded by the stator core. It is a rotary electric machine having a rotor core.
The stator core element laminated block 11LB group connected in an annular shape in the circumferential direction is firmly fitted to the inner circumference of the annular frame 12. Due to the strong fitting, the stator core element laminated block 11LB group connected in an annular shape in the circumferential direction maintains a state in which the stator core element laminated blocks 11LB are connected in an annular shape in the circumferential direction, that is, the state shown in FIG.

回転電機の積層鉄心製造方法は、図２に積層鉄心製造方法の概念を平面図で例示してあるように、図示してない圧延ローラによって帯状電磁鋼板粗材インゴットがプレスされることによって帯状電磁鋼板圧延方向A4Mに圧延されて形成された帯状電磁鋼板４の第１の領域から板状回転子コアエレメント２１がプレス機構によって打ち抜かれる前に、第１の領域より内側の第２の領域４２から円周方向に環状に連接させる板状固定子コアエレメント１１、１１、・・・（図２の事例では１０個）が、図示のように、相互に間隔をあけて、一挙にではなく、複数工程で、各工程で複数個がプレス機構によって打ち抜かれるように、順次打ち抜かれる。具体的には、製造装置５を例示する図５および図６と、板状固定子コアエレメントを複数の打抜工程で複数個ずつ打ち抜く方法を説明するための図７とによって、以下に詳述する。 As for the method for manufacturing a laminated iron core of a rotary electric machine, as illustrated in FIG. 2 in a plan view, a strip-shaped electromagnetic steel plate rough material ingot is pressed by a rolling roller (not shown) to form a strip-shaped electromagnetic steel. From the first region of the strip-shaped electromagnetic steel sheet 4 formed by rolling in the steel sheet rolling direction A4M, from the second region 42 inside the first region before the plate-shaped rotor core element 21 is punched by the press mechanism. As shown in the figure, a plurality of plate-shaped stator core elements 11, 11, ... (10 in the case of FIG. 2) that are connected in a ring shape in the circumferential direction are not all at once but spaced apart from each other. In the process, punching is performed in sequence so that a plurality of pieces are punched by the press mechanism in each process. Specifically, FIG. 5 and FIG. 6 illustrating the manufacturing apparatus 5 and FIG. 7 for explaining a method of punching a plurality of plate-shaped stator core elements in a plurality of punching steps are described in detail below. To do.

圧延方向A4M（以下、「帯状電磁鋼板圧延方向」とも記す）に圧延されて形成された帯状電磁鋼板４が製造装置５へ矢印Ａ４方向（以下、「帯状電磁鋼板送給方向」とも記す）へ送給されると、先ず、帯状電磁鋼板平面化機構５０によって、帯状電磁鋼板４の不規則な湾曲、撓み、などが平面化される。
具体的には、帯状電磁鋼板平面化機構５０によって、帯状電磁鋼板４の板状回転子コアエレメント２１の打ち抜き領域である第１の領域４１の外側の四隅に外側パイロットピン501が貫挿されることにより領域４１の四隅で帯状電磁鋼板４に張力がかけられ、帯状電磁鋼板４の四隅の外側パイロットピン501に囲まれる領域（第２の領域４２を含む）が平面化される。
更に、帯状電磁鋼板４の第２の領域４２（板状回転子コアエレメント２１が打ち抜かれる領域に囲まれる領域）における任意の数か所に、帯状電磁鋼板平面化機構５０によって、内側パイロットピン502が、板状固定子コアエレメント１１の打ち抜き部分と重ならない位置において貫挿される。この内側パイロットピン502の帯状電磁鋼板４への貫挿が行われることにより、板状固定子コアエレメント１１のプレス機構による打ち抜きによる帯状電磁鋼板４の第２の領域４２における歪の発生が抑制される。 The strip-shaped electromagnetic steel sheet 4 formed by rolling in the rolling direction A4M (hereinafter, also referred to as “strip-shaped electromagnetic steel sheet rolling direction”) is directed to the manufacturing apparatus 5 in the arrow A4 direction (hereinafter, also referred to as “strip-shaped electromagnetic steel sheet feeding direction”). When fed, first, the strip-shaped electromagnetic steel plate flattening mechanism 50 flattens the irregular curvature, bending, and the like of the strip-shaped electromagnetic steel plate 4.
Specifically, the outer pilot pin 501 is inserted into the four outer corners of the first region 41, which is the punched region of the plate-shaped rotor core element 21 of the electrical steel strip 4, by the electrical steel sheet flattening mechanism 50. Tension is applied to the electrical steel strip 4 at the four corners of the region 41, and the region (including the second region 42) surrounded by the outer pilot pins 501 at the four corners of the electrical steel strip 4 is flattened.
Further, the inner pilot pin 502 is provided by the strip-shaped electromagnetic steel plate flattening mechanism 50 at arbitrary several places in the second region 42 (the region surrounded by the region where the plate-shaped rotor core element 21 is punched) of the strip-shaped electromagnetic steel plate 4. Is inserted at a position that does not overlap with the punched portion of the plate-shaped stator core element 11. By inserting the inner pilot pin 502 into the band-shaped electromagnetic steel sheet 4, the generation of strain in the second region 42 of the band-shaped electromagnetic steel sheet 4 due to punching by the press mechanism of the plate-shaped stator core element 11 is suppressed. To.

製造装置５には、帯状電磁鋼板平面化機構５０より帯状電磁鋼板４の送給方向Ａ４の下流側に第１のプレス機構５１が、第１のプレス機構５１の下流側に第２のプレス機構５２が、第２のプレス機構５２の下流側に第３のプレス機構５３が、第３のプレス機構５３の下流側に第４のプレス機構５４が、第４のプレス機構５４の下流側に第５のプレス機構５５が、第５のプレス機構５５の下流側にスクラップ切断機構５６が、それぞれ配設されている。 In the manufacturing apparatus 5, a first press mechanism 51 is located downstream of the strip-shaped electromagnetic steel plate flattening mechanism 50 on the downstream side of the feeding direction A4 of the strip-shaped electromagnetic steel plate 4, and a second press mechanism is located downstream of the first press mechanism 51. 52 has a third press mechanism 53 on the downstream side of the second press mechanism 52, a fourth press mechanism 54 on the downstream side of the third press mechanism 53, and a third press mechanism 54 on the downstream side of the fourth press mechanism 54. The press mechanism 55 of the fifth press mechanism 55 and the scrap cutting mechanism 56 are arranged on the downstream side of the fifth press mechanism 55, respectively.

第１のプレス機構５１は、第１の板状固定子コアエレメント打抜雄金型511を複数本（本実施の形態１では３本）有し、また、第１の板状固定子コアエレメント打抜雄金型511に対応してダイプレートに形成された第１の板状固定子コアエレメント打抜雌金型512を有している。
第１の板状固定子コアエレメント打抜雄金型511のパンチング動作により、第１の板状固定子コアエレメント打抜雄金型511と第１の板状固定子コアエレメント打抜雌金型512とが協働して、帯状電磁鋼板４から板状固定子コアエレメント１１が打ち抜かれる。
複数個の第１の板状固定子コアエレメント打抜雌金型512の各々に対応して第１の板状固定子コアエレメント蓄積室513が、複数個の第１の固定子コアエレメント積層ブロック排出口514が、それぞれ設けられている。 The first press mechanism 51 has a plurality of first plate-shaped stator core element punching male dies 511 (three in the first embodiment), and also has a first plate-shaped stator core element. It has a first plate-shaped stator core element punched female die 512 formed on a die plate corresponding to the punched male die 511.
By the punching operation of the first plate-shaped stator core element punching male die 511, the first plate-shaped stator core element punching male die 511 and the first plate-shaped stator core element punching female die In cooperation with 512, the plate-shaped stator core element 11 is punched from the strip-shaped electromagnetic steel plate 4.
The first plate-shaped stator core element storage chamber 513 corresponds to each of the plurality of first plate-shaped stator core element punching female dies 512, and a plurality of first plate-shaped stator core element laminated blocks are provided. Each outlet 514 is provided.

第２のプレス機構５２は、第２の板状固定子コアエレメント打抜雄金型521を複数本（本実施の形態１では２本）有し、また、第２の板状固定子コアエレメント打抜雄金型521に対応してダイプレートに形成された第２の板状固定子コアエレメント打抜雌金型522を有している。
第２の板状固定子コアエレメント打抜雄金型521のパンチング動作により、第２の板状固定子コアエレメント打抜雄金型521と第２の板状固定子コアエレメント打抜雌金型522とが協働して、帯状電磁鋼板４から板状固定子コアエレメント１１が打ち抜かれる。
複数個の第２の板状固定子コアエレメント打抜雌金型522の各々に対応して第２の板状固定子コアエレメント蓄積室523が、複数個の第２の固定子コアエレメント積層ブロック排出口524が、それぞれ設けられている。 The second press mechanism 52 has a plurality of second plate-shaped stator core element punching male dies 521 (two in the first embodiment), and also has a second plate-shaped stator core element. It has a second plate-shaped stator core element punched female die 522 formed on the die plate corresponding to the punched male die 521.
By the punching operation of the second plate-shaped stator core element punching male die 521, the second plate-shaped stator core element punching male die 521 and the second plate-shaped stator core element punching female die In cooperation with 522, the plate-shaped stator core element 11 is punched from the strip-shaped electromagnetic steel plate 4.
The second plate-shaped stator core element storage chamber 523 corresponds to each of the plurality of second plate-shaped stator core element punched female dies 522, and a plurality of second stator core element laminated blocks are provided. Each outlet 524 is provided.

第３のプレス機構５３は、第３の板状固定子コアエレメント打抜雄金型531を複数本（本実施の形態１では３本）有し、また、第３の板状固定子コアエレメント打抜雄金型531に対応してダイプレートに形成された第３の板状固定子コアエレメント打抜雌金型532を有している。
第３の板状固定子コアエレメント打抜雄金型531のパンチング動作により、第３の板状固定子コアエレメント打抜雄金型531と第３の板状固定子コアエレメント打抜雌金型532とが協働して、帯状電磁鋼板４から板状固定子コアエレメント１１が打ち抜かれる。
複数個の第３の板状固定子コアエレメント打抜雌金型532の各々に対応して第３の板状固定子コアエレメント蓄積室533が、複数個の第３の固定子コアエレメント積層ブロック排出口534が、それぞれ設けられている。 The third press mechanism 53 has a plurality of third plate-shaped stator core element punching male dies 531 (three in the first embodiment), and also has a third plate-shaped stator core element. It has a third plate-shaped stator core element punched female die 532 formed on the die plate corresponding to the punched male die 531.
By the punching operation of the third plate-shaped stator core element punching male die 531, the third plate-shaped stator core element punching male die 531 and the third plate-shaped stator core element punching female die In cooperation with 532, the plate-shaped stator core element 11 is punched from the strip-shaped electromagnetic steel plate 4.
A third plate-shaped stator core element storage chamber 533 corresponds to each of the plurality of third plate-shaped stator core element punched female dies 532, and a plurality of third stator core element laminated blocks are provided. Each outlet 534 is provided.

第４のプレス機構５４は、第４の板状固定子コアエレメント打抜雄金型541を複数本（本実施の形態１では２本）有し、また、第４の板状固定子コアエレメント打抜雄金型541に対応してダイプレートに形成された第４の板状固定子コアエレメント打抜雌金型542を有している。
第４の板状固定子コアエレメント打抜雄金型541のパンチング動作により、第４の板状固定子コアエレメント打抜雄金型541と第４の板状固定子コアエレメント打抜雌金型542とが協働して、帯状電磁鋼板４から板状固定子コアエレメント１１が打ち抜かれる。
複数個の第４の板状固定子コアエレメント打抜雌金型542の各々に対応して第４の板状固定子コアエレメント蓄積室543が、複数個の第４の固定子コアエレメント積層ブロック排出口544が、それぞれ設けられている。 The fourth press mechanism 54 has a plurality of fourth plate-shaped stator core element punching male dies 541 (two in the first embodiment), and also has a fourth plate-shaped stator core element. It has a fourth plate-shaped stator core element punched female die 542 formed on the die plate corresponding to the punched male die 541.
By the punching operation of the 4th plate-shaped stator core element punching male mold 541, the 4th plate-shaped stator core element punching male mold 541 and the 4th plate-shaped stator core element punching female mold In cooperation with 542, the plate-shaped stator core element 11 is punched from the strip-shaped electromagnetic steel plate 4.
The fourth plate-shaped stator core element storage chamber 543 corresponds to each of the plurality of fourth plate-shaped stator core element punched female dies 542, and a plurality of fourth stator core element laminated blocks are provided. Each outlet 544 is provided.

第５のプレス機構５５は、第５の板状回転子コアエレメント打抜雄金型551を有し、また、第５の板状回転子コアエレメント打抜雄金型551に対応してダイプレートに形成された第５の板状回転子コアエレメント打抜雌金型552を有している。
第５の板状回転子コアエレメント打抜雄金型551のパンチング動作により、第５の板状回転子コアエレメント打抜雄金型551と第５の板状回転子コアエレメント打抜雌金型552とが協働して、帯状電磁鋼板４から板状回転子コアエレメント２１が打ち抜かれる。
第５の板状回転子コアエレメント打抜雌金型552に対応して、第５の板状回転子コアエレメント蓄積室553が、回転子コアエレメント積層ブロック排出口554が、それぞれ設けられている。 The fifth press mechanism 55 has a fifth plate-shaped rotor core element punching male die 551, and a die plate corresponding to the fifth plate-shaped rotor core element punching male die 551. It has a fifth plate-shaped rotor core element punched female die 552 formed in.
By the punching operation of the fifth plate-shaped rotor core element punching male die 551, the fifth plate-shaped rotor core element punching male die 551 and the fifth plate-shaped rotor core element punching female die In cooperation with 552, the plate-shaped rotor core element 21 is punched from the strip-shaped electromagnetic steel plate 4.
A fifth plate-shaped rotor core element storage chamber 553 and a rotor core element laminated block discharge port 554 are provided corresponding to the fifth plate-shaped rotor core element punched female die 552. ..

第１から第５のプレス機構５１から５５による打ち抜きが全て済むと、帯状電磁鋼板４の残材はスクラップ材であるので、電磁鋼板スクラップ切断雄金型561と電磁鋼板スクラップ切断雌金型562とによって切断されたスクラップ材は、切断電磁鋼板スクラップ蓄積室563に蓄積された後、切断電磁鋼板スクラップ排出口564から取り出される。 When all the punching by the first to fifth press mechanisms 51 to 55 is completed, the residual material of the strip-shaped electromagnetic steel sheet 4 is scrap material, so that the electromagnetic steel sheet scrap cutting male mold 561 and the electromagnetic steel sheet scrap cutting female mold 562 The scrap material cut by is accumulated in the cut electromagnetic steel sheet scrap storage chamber 563 and then taken out from the cut electromagnetic steel sheet scrap discharge port 564.

次に、図７と図５とによって、圧延によって形成された帯状電磁鋼板から前記板状回転子コアエレメントをプレス機構により打ち抜く工程の前に、前記帯状電磁鋼板の前記板状回転子コアエレメントを打ち抜く第１の領域より内側の第２の領域内に、板状固定子コアエレメントを複数の打抜工程で複数個ずつ打ち抜く動作を、打抜工程順に説明する。 Next, according to FIGS. 7 and 5, the plate-shaped rotor core element of the strip-shaped electromagnetic steel sheet is pressed before the step of punching the plate-shaped rotor core element from the strip-shaped electromagnetic steel sheet formed by rolling by a press mechanism. The operation of punching a plurality of plate-shaped stator core elements in a second region inside the first region to be punched in a plurality of punching steps will be described in the order of the punching steps.

図７に例示してあるように、第１の打抜工程では、第２の領域４２内で帯状電磁鋼板４の３個の板状固定子コアエレメント打抜対象T1-1、T1-2、T1-3を、図５および図６の第１のプレス機構５１で打ち抜き、帯状電磁鋼板４は帯状電磁鋼板送給方向Ａ４へ送給されて次工程の第２の打抜工程へ送給される。
第１の打抜工程で打ち抜かれた３個の板状固定子コアエレメント１１は、図５および図６の製造装置５の３個の第１の板状固定子コアエレメント蓄積室513、513、513内に個別に蓄積される。 As illustrated in FIG. 7, in the first punching step, the three plate-shaped stator core elements of the strip-shaped electrical steel sheet 4 are punched in the second region 42 T 1-1 , T 1-. 2 and T 1-3 are punched by the first press mechanism 51 of FIGS. 5 and 6, and the strip-shaped electromagnetic steel sheet 4 is fed in the strip-shaped electromagnetic steel sheet feeding direction A4 to the second punching step of the next step. Will be sent.
The three plate-shaped stator core elements 11 punched in the first punching step are the three first plate-shaped stator core element storage chambers 513, 513, of the manufacturing apparatus 5 of FIGS. 5 and 6. It is individually accumulated in 513.

図７に例示してあるように、第２の打抜工程では、第２の領域４２内で帯状電磁鋼板４の２個の板状固定子コアエレメント打抜対象T1-4、T1-5を、図５および図６の第２のプレス機構５２で打ち抜き、帯状電磁鋼板４は帯状電磁鋼板送給方向Ａ４へ送給されて次工程の第３の打抜工程へ送給される。
第２の打抜工程で打ち抜かれた２個の板状固定子コアエレメント１１は、図５および図６の製造装置５の２個の第２の板状固定子コアエレメント蓄積室523、523内に個別に蓄積される。 As illustrated in FIG. 7, in the second punching step, the two plate-shaped stator core elements T 1-4 , T 1- of the strip-shaped electrical steel sheet 4 are punched in the second region 42. 5 is punched by the second press mechanism 52 of FIGS. 5 and 6, and the strip-shaped electromagnetic steel sheet 4 is fed in the strip-shaped electromagnetic steel sheet feeding direction A4 and fed to the third punching step of the next step.
The two plate-shaped stator core elements 11 punched in the second punching step are in the two second plate-shaped stator core element storage chambers 523 and 523 of the manufacturing apparatus 5 of FIGS. 5 and 6. It is accumulated individually.

図７に例示してあるように、第３の打抜工程では、第２の領域４２内で帯状電磁鋼板４の３個の板状固定子コアエレメント打抜対象T1-6、T1-7、T1-8を、図５および図６の第３のプレス機構５３で打ち抜き、帯状電磁鋼板４は帯状電磁鋼板送給方向Ａ４へ送給されて次工程の第４の打抜工程へ送給される。
第３の打抜工程で打ち抜かれた３個の板状固定子コアエレメント１１は、図５および図６の製造装置５の３個の第３の板状固定子コアエレメント蓄積室533、533、533内に個別に蓄積される。 As illustrated in FIG. 7, in the third punching step, the three plate-shaped stator core elements T 1-6 and T 1- of the strip-shaped electrical steel sheet 4 are punched in the second region 42. 7 and T 1-8 are punched by the third press mechanism 53 of FIGS. 5 and 6, and the strip-shaped electromagnetic steel sheet 4 is fed in the strip-shaped electromagnetic steel sheet feeding direction A4 to the fourth punching step of the next step. Will be sent.
The three plate-shaped stator core elements 11 punched in the third punching step are the three plate-shaped stator core element storage chambers 533, 533, of the manufacturing apparatus 5 of FIGS. 5 and 6. It is individually accumulated in 533.

図７に例示してあるように、第４の打抜工程では、第２の領域４２内で帯状電磁鋼板４の２個の板状固定子コアエレメント打抜対象T1-9、T1-10を、図５および図６の第４のプレス機構５４で打ち抜き、帯状電磁鋼板４は帯状電磁鋼板送給方向Ａ４へ送給されて次工程の第５の打抜工程へ送給される。
第４の打抜工程で打ち抜かれた２個の板状固定子コアエレメント１１は、図５および図６の製造装置５の２個の第２の板状固定子コアエレメント蓄積室543、543内に個別に蓄積される。 As illustrated in FIG. 7, in the fourth punching step, the two plate-shaped stator core elements T 1-9 and T 1- of the strip-shaped electrical steel sheet 4 are punched in the second region 42. 10 is punched by the fourth press mechanism 54 of FIGS. 5 and 6, and the strip-shaped electromagnetic steel sheet 4 is fed in the strip-shaped electromagnetic steel sheet feeding direction A4 and fed to the fifth punching step of the next step.
The two plate-shaped stator core elements 11 punched in the fourth punching step are in the two second plate-shaped stator core element storage chambers 543 and 543 of the manufacturing apparatus 5 of FIGS. 5 and 6. It is accumulated individually.

なお、この第４の打抜工程での打ち抜き終了時点で、回転電機組立時に板状回転子コアエレメント２１に対して使用される全ての板状固定子コアエレメント１１・・・１１（第２の領域４２内で帯状電磁鋼板４の１０個の板状固定子コアエレメント打抜対象T1-1からT1-10が打ち抜かれて形成された板状固定子コアエレメント）が打ち抜かれたことになる。 At the end of punching in the fourth punching step, all the plate-shaped stator core elements 11 ... 11 (second) used for the plate-shaped rotor core element 21 when assembling the rotary electric machine. Ten plate-shaped stator core elements of the band-shaped electromagnetic steel sheet 4 were punched out in the region 42 (plate-shaped stator core elements formed by punching T 1-1 to T 1-10 ). Become.

第１から第４の打抜工程で、第２の領域４２から、回転電機組立時に板状回転子コアエレメント２１に対して使用される全ての板状固定子コアエレメント１１・・・１１（第２の領域４２内で帯状電磁鋼板４の１０個の板状固定子コアエレメント打抜対象T1-1からT1-10が打ち抜かれて形成された板状固定子コアエレメント）が打ち抜かれた後の次の工程は、第５の打抜工程である。
図６に例示してあるように、第５の打抜工程では、第５のプレス機構５５によって帯状電磁鋼板４の第１の領域４１から板状回転子コアエレメント２１を打ち抜く工程である。
第５の打抜工程で打ち抜かれた１個の板状回転子コアエレメント２１は、図５および図６の製造装置５の板状回転子コアエレメント蓄積室553内に個別に蓄積される。 In the first to fourth punching steps, from the second region 42, all the plate-shaped stator core elements 11 ... 11 (first) used for the plate-shaped rotor core element 21 at the time of assembling the rotary electric machine. In the region 42 of 2, 10 plate-shaped stator core elements of the electrical steel strip 4 were punched out (plate-shaped stator core elements formed by punching T 1-1 to T 1-10 ). The next step after that is the fifth punching step.
As illustrated in FIG. 6, the fifth punching step is a step of punching the plate-shaped rotor core element 21 from the first region 41 of the electrical steel strip 4 by the fifth press mechanism 55.
One plate-shaped rotor core element 21 punched in the fifth punching step is individually stored in the plate-shaped rotor core element storage chamber 553 of the manufacturing apparatus 5 of FIGS. 5 and 6.

なお、第１の打抜工程での打ち抜きが終了すると、帯状電磁鋼板４が帯状電磁鋼板送給方向Ａ４に送給されて、第１の打抜工程で打ち抜かれた領域は第２の打抜工程へ移動して第２の打抜工程での打ち抜きが行われるが、第１の打抜工程に送給されてきた未打ち抜きの帯状電磁鋼板４は、前記第２の打抜工程での打ち抜きが行われている期間中に、第１の打抜工程での打ち抜きが行われる。同様に、第５の打抜工程での打ち抜きが行われている期間中には、第１の打抜工程、第２の打抜工程、第３の打抜工程、第４の打抜工程での打ち抜きが行われる。 When the punching in the first punching step is completed, the strip-shaped electromagnetic steel sheet 4 is fed in the strip-shaped electromagnetic steel sheet feeding direction A4, and the region punched in the first punching step is the second punching. After moving to the process and punching in the second punching step, the unpunched strip-shaped electromagnetic steel sheet 4 sent to the first punching step is punched in the second punching step. During the period during which, punching in the first punching step is performed. Similarly, during the period during which the punching in the fifth punching step is performed, in the first punching step, the second punching step, the third punching step, and the fourth punching step. Is punched out.

このようにして、連続的に、第１のプレス機構５１、第２のプレス機構５２、第３のプレス機構５３、第４のプレス機構５４、および第５のプレス機構５５は運転され、所定枚数の板状固定子コアエレメント１１が対応する第１から第４の板状固定子コアエレメント蓄積室513、523、533、543に蓄積されると、所定枚数蓄積された板状固定子コアエレメント１１を、製造装置５の内部の押し出し機構で、第１から第４の板状固定子コアエレメント蓄積室513、523、533、543から自動的に押し出し、第１から第４の固定子コアエレメント積層ブロック排出口514、524、534、544から、固定子コアエレメント積層ブロック１１ＬＢ（図４参照）が排出される。
同様に、所定枚数の板状回転子コアエレメント２１が板状回転子コアエレメント蓄積室553に蓄積されると、所定枚数蓄積された板状回転子コアエレメント２１を、製造装置５の内部の押し出し機構で、板状回転子コアエレメント蓄積室553から自動的に押し出し、回転子コアエレメント積層ブロック排出口554から排出される。 In this way, the first press mechanism 51, the second press mechanism 52, the third press mechanism 53, the fourth press mechanism 54, and the fifth press mechanism 55 are continuously operated and a predetermined number of sheets are operated. When the plate-shaped stator core elements 11 of the above are stored in the corresponding first to fourth plate-shaped stator core element storage chambers 513, 523, 533, 543, a predetermined number of plate-shaped stator core elements 11 are stored. Is automatically extruded from the first to fourth plate-shaped stator core element storage chambers 513, 523, 533, 543 by the internal extrusion mechanism of the manufacturing apparatus 5, and the first to fourth stator core elements are laminated. The stator core element laminated block 11LB (see FIG. 4) is discharged from the block discharge ports 514, 524, 534, and 544.
Similarly, when a predetermined number of plate-shaped rotor core elements 21 are accumulated in the plate-shaped rotor core element storage chamber 553, the plate-shaped rotor core elements 21 accumulated in a predetermined number of plates are extruded inside the manufacturing apparatus 5. The mechanism automatically pushes it out of the plate-shaped rotor core element storage chamber 553 and discharges it from the rotor core element laminated block discharge port 554.

前述のことから明白なように、本実施の形態１には、ティース部１１Ｔとコアバック部１１ＣＢとによりＴ字型に形成された板状固定子コアエレメント１１を回転電機の軸方向に積層することによって構成された固定子コアエレメント積層ブロック１１ＬＢを回転電機の円周方向に環状に連接することによって構成された固定子コア１、および環状の板状回転子コアエレメント２１を回転電機の軸方向に積層することによって構成され前記固定子コア１に囲繞された回転子コア２を有する回転電機の積層鉄心製造方法であって、圧延によって形成された帯状電磁鋼板４から前記板状回転子コアエレメント２１をプレス機構５５により打ち抜く工程（本実施の形態では第５の打抜工程）の前に、前記帯状電磁鋼板４の前記板状回転子コアエレメント２１を打ち抜く第１の領域４１より内側の第２の領域４２内に、板状固定子コアエレメント１１を複数の打抜工程（本実施の形態では第１から第４の打抜工程）で各打抜工程毎に複数個ずつ打ち抜く回転電機の積層鉄心製造方法が例示されている。 As is clear from the above, in the first embodiment, the plate-shaped stator core element 11 formed in a T shape by the teeth portion 11T and the core back portion 11CB is laminated in the axial direction of the rotary electric machine. The stator core 1 formed by connecting the stator core element laminated block 11LB formed by this method in an annular direction in the circumferential direction of the rotary electric machine, and the annular plate-shaped rotor core element 21 are connected in the axial direction of the rotary electric machine. It is a method of manufacturing a laminated iron core of a rotating electric machine having a rotor core 2 surrounded by the stator core 1 by laminating the plate-shaped rotor core element from a strip-shaped electromagnetic steel plate 4 formed by rolling. Before the step of punching 21 by the press mechanism 55 (fifth punching step in this embodiment), the first region inside the first region 41 for punching the plate-shaped rotor core element 21 of the strip-shaped electromagnetic steel plate 4. A rotary electric machine that punches a plurality of plate-shaped stator core elements 11 in the region 42 in a plurality of punching steps (first to fourth punching steps in the present embodiment) for each punching step. A method for manufacturing a laminated iron core is exemplified.

本実施の形態では、図２および図７に例示してあるように、１０個の板状固定子コアエレメント１１のうち板状固定子コアエレメントを打ち抜く板状固定子コアエレメント打抜対象の数は、圧延プレス送り方向Ａ５（すなわち帯状電磁鋼板圧延方向Ａ４Ｍつまり帯状電磁鋼板送給方向Ａ４）、に対して平行な板状回転子コアエレメント２１の打抜対象の中心軸CH21上で打ち抜く２個の板状回転子コアエレメント打抜対象T1-2, T1-7を除いて、圧延プレス送り方向Ａ５（すなわち帯状電磁鋼板圧延方向Ａ４Ｍつまり帯状電磁鋼板送給方向Ａ４）、に対して平行な板状回転子コアエレメント２１の打抜対象の中心軸CH21と圧延プレス送り方向Ａ５（すなわち帯状電磁鋼板圧延方向Ａ４Ｍつまり帯状電磁鋼板送給方向Ａ４）、に対して垂直な板状回転子コアエレメント２１の打抜対象の中心軸CV21のそれぞれに対して対称であるため、帯状電磁鋼板４から板状回転子コアエレメント２１が打ち抜かれる領域である第１の領域４１に囲まれる第２の領域４２における板状固定子コアエレメント打抜対象がプレス機構によって打ち抜かれるときに帯状電磁鋼板４の第２の領域４２に掛かる板状固定子コアエレメント打抜雄金型のパンチング圧力が均等に分散されるので、板状固定子コアエレメント１１の各々の寸法精度が向上する。
また、回転電機の周方向に配置の板状固定子コアエレメント１１の各々の帯状電磁鋼板圧延方向Ａ４Ｍの向きが、図１２に例示のように全て同一方向すなわち径方向となるため、回転電機の周方向に配置の板状固定子コアエレメント１１の各々の帯状電磁鋼板圧延方向Ａ４Ｍと直交方向の角度の違いによる磁気異方性の違いに起因するコギングトルク、あるいはトルクリップル、を軽減できる。
また、回転電機の周方向に配置の板状固定子コアエレメント１１の各々の帯状電磁鋼板圧延方向Ａ４Ｍの向きが、図１２に例示のように全て同一方向すなわち径方向となるため、回転電機動作時の板状固定子コアエレメント１１の各々を通る磁束と帯状電磁鋼板圧延方向Ａ４Ｍの向きが同じであるので、帯状電磁鋼板圧延方向Ａ４Ｍは磁気特性が良いことから高トルクの回転電機を実現できるという効果が得られる。 In the present embodiment, as illustrated in FIGS. 2 and 7, the number of plate-shaped stator core element punching targets for punching the plate-shaped stator core element out of the 10 plate-shaped stator core elements 11. Is punched on the central axis CH21 of the plate-shaped rotor core element 21 parallel to the rolling press feed direction A5 (that is, the strip-shaped electromagnetic steel plate rolling direction A4M, that is, the strip-shaped electromagnetic steel plate feeding direction A4). Plate-shaped rotor core element Punching target T 1-2 , T 1-7 , parallel to the rolling press feed direction A5 (that is, strip-shaped solenoid steel plate rolling direction A4M, that is, strip-shaped solenoid steel plate feeding direction A4) Plate-shaped rotor core 21 is perpendicular to the central axis CH21 to be punched and the rolling press feed direction A5 (that is, strip-shaped electromagnetic steel plate rolling direction A4M, that is, strip-shaped electromagnetic steel plate feeding direction A4). Since the element 21 is symmetrical with respect to each of the central axes CV21 to be punched, the second region surrounded by the first region 41, which is the region where the plate-shaped rotor core element 21 is punched from the strip-shaped electromagnetic steel plate 4. When the plate-shaped stator core element punching target in 42 is punched by the press mechanism, the punching pressure of the plate-shaped stator core element punching male mold applied to the second region 42 of the strip-shaped electromagnetic steel plate 4 is evenly distributed. Therefore, the dimensional accuracy of each of the plate-shaped stator core elements 11 is improved.
Further, since the directions of the rolling directions A4M of the strip-shaped electromagnetic steel sheets of the plate-shaped stator core elements 11 arranged in the circumferential direction of the rotary electric machine are all the same direction, that is, the radial direction as illustrated in FIG. It is possible to reduce cogging torque or torque ripple caused by the difference in magnetic anisotropy due to the difference in the rolling direction A4M and the angle in the orthogonal direction of each of the plate-shaped stator core elements 11 arranged in the circumferential direction.
Further, since the directions of the rolling directions A4M of the strip-shaped electrical steel sheets of the plate-shaped stator core elements 11 arranged in the circumferential direction of the rotary electric machine are all the same direction, that is, the radial direction as illustrated in FIG. 12, the rotary electric machine operates. Since the magnetic flux passing through each of the plate-shaped stator core elements 11 and the direction of the strip-shaped electrical steel sheet rolling direction A4M are the same, the strip-shaped electrical steel sheet rolling direction A4M has good magnetic characteristics, so that a high-torque rotary electric machine can be realized. The effect is obtained.

本実施の形態では、図７に示すように１０個の板状固定子コアエレメント１１が第１から第４の打抜工程で４回に分けて生産されている。第１から第４の打抜工程の各打抜工程において、打ち抜く板状固定子コアエレメント１１の数は、それぞれ、３個、２個、３個、２個であり、帯状電磁鋼板送給方向Ａ４（帯状電磁鋼板送給方向Ａ４に平行な方向Ａ５）に対して垂直な方向Ａ６に複数個の板状固定子コアエレメント１１が同時に打ち抜かれることがない。そのため、図７に例示のように、各板状固定子コアエレメント打抜対象T1-1，T1-2，T1-3，T1-4，T1-5，T1-6，T1-7，T1-8，T1-9，T1-10が打ち抜かれて製造された板状固定子コアエレメントは矢印D13のように相互に混ざることなく個々に対応する板状固定子コアエレメント蓄積室513，523，533，543の個々に集積され、従って、第１から第４の打抜工程で製造された板状固定子コアエレメントの固定子コアエレメント積層ブロック１１ＬＢは、相互に混ざることなく製造装置５の第１から第４の固定子コアエレメント積層ブロック排出口514、524、534、544の個別の排出口から取り出され、固定子コアエレメント積層ブロック１１ＬＢの回収方法が容易になり、生産効率が向上する。 In the present embodiment, as shown in FIG. 7, ten plate-shaped stator core elements 11 are produced in four steps in the first to fourth punching steps. In each punching step of the first to fourth punching steps, the number of plate-shaped stator core elements 11 to be punched is 3, 2, 3, and 2, respectively, and the strip-shaped electromagnetic steel sheet feeding direction. A plurality of plate-shaped stator core elements 11 are not punched out at the same time in the direction A6 perpendicular to A4 (direction A5 parallel to the feeding direction A4 of the electrical steel strip). Therefore, as illustrated in FIG. 7, each plate-shaped stator core element to be punched T 1-1 , T 1-2 , T 1-3 , T 1-4 , T 1-5 , T 1-6 , Plate-shaped stator core elements manufactured by punching T 1-7 , T 1-8 , T 1-9 , and T 1-10 are individually supported plate-shaped stators as shown by arrow D13 without mixing with each other. The stator core element laminated blocks 11LB of the plate-shaped stator core elements, which are individually integrated in the child core element storage chambers 513, 523, 533, 543 and thus manufactured in the first to fourth punching steps, are mutually integrated. The stator core element laminated block 11LB can be easily collected by being taken out from the individual outlets of the first to fourth stator core element laminated block discharge ports 514, 524, 534, and 544 of the manufacturing apparatus 5 without being mixed with. And the production efficiency is improved.

第１から第４の各打抜工程において、隣り合う板状固定子コアエレメント打抜対象は、図６および図７に例示のように、帯状電磁鋼板送給方向Ａ４に対して、帯状電磁鋼板送給方向Ａ４の板状固定子コアエレメント幅L14（図３参照）以上の間隔L16を空け、帯状電磁鋼板送給方向Ａ４に垂直な方向に対して、帯状電磁鋼板送給方向Ａ４に垂直な方向の板状固定子コアエレメント幅L15（図３参照）以上の間隔L17を空けるので、プレス機構によるパンチング荷重を受けるダイプレートに剛性を持たせることができるため、固定子コアエレメント積層ブロック１１ＬＢ（図４参照）を構成する各板状固定子コアエレメント１１の寸法精度がさらに向上する。 In each of the first to fourth punching steps, the objects to be punched from the adjacent plate-shaped stator core elements are the strip-shaped electrical steel sheets with respect to the feeding direction A4, as illustrated in FIGS. 6 and 7. A space L16 equal to or greater than the plate-shaped stator core element width L14 (see FIG. 3) in the feeding direction A4 is provided, and the strip-shaped electromagnetic steel sheet is perpendicular to the feeding direction A4 with respect to the direction perpendicular to the feeding direction A4. Since a space L17 equal to or greater than the plate-shaped stator core element width L15 (see FIG. 3) in the direction is provided, the die plate that receives the punching load by the press mechanism can be made rigid, so that the stator core element laminated block 11LB ( The dimensional accuracy of each plate-shaped stator core element 11 constituting (see FIG. 4) is further improved.

打抜工程で打ち抜く板状固定子コアエレメント１１の個数は以下のように一般化することができる。すなわち、
板状回転子コアエレメント２１の内側で打ち抜かれる板状固定子コアエレメント１１の数を自然数a、
板状固定子コアエレメント１１が打ち抜かれる打抜工程数を自然数bとすると、
a/bが自然数でない場合、
c>a/b>dとなるような隣り合う自然数c,dとおくと、
板状固定子コアエレメント１１の打抜工程で打ち抜く板状固定子コアエレメント１１の数は自然数c又はdで表すことができる。 The number of plate-shaped stator core elements 11 punched in the punching step can be generalized as follows. That is,
The number of plate-shaped stator core elements 11 punched inside the plate-shaped rotor core element 21 is a natural number a,
Assuming that the number of punching steps in which the plate-shaped stator core element 11 is punched is a natural number b,
If a / b is not a natural number
If we set adjacent natural numbers c and d such that c> a / b> d,
The number of plate-shaped stator core elements 11 punched in the punching step of the plate-shaped stator core element 11 can be represented by a natural number c or d.

本願は大径の永久磁石埋め込み型モータにおいてより効果を発揮する。大径かつ永久磁石埋め込み型のモータの適用例として、自動車のエンジンとトランスミッションの間にモータを配置して、モータを用いてエンジンの始動を行ったり、発電により自動車の運動エネルギーを電気エネルギーとして回生したり、トルクを発生してエンジンのアシストを行う、ハイブリッドシステムがある。このような適用例においては、モータの高効率化はもちろん、モータの低振動化・低騒音化の要求が強い。また、大径のモータでは、帯状電磁鋼板における打ち抜かれる板状回転子コアエレメントの内側の領域（第２の領域４２）を有効利用しないと材料歩留まりが悪くなってしまう。本願の製造方法、製造装置を用いて板状固定子コアエレメントおよび板状回転子コアエレメントを製造すれば、従来に比べて寸法精度が向上できるという効果が得られる。さらに、固定子コアの精度も高くなるため形状精度悪化に起因するモータの振動および騒音も抑制できるという効果も奏することができる。 The present application is more effective in a large-diameter permanent magnet embedded motor. As an application example of a large-diameter, permanent magnet-embedded motor, a motor is placed between the engine and transmission of an automobile, and the engine is started using the motor, or the kinetic energy of the automobile is regenerated as electrical energy by power generation. There is a hybrid system that assists the engine by generating torque. In such an application example, there is a strong demand for low vibration and low noise of the motor as well as high efficiency of the motor. Further, in a large-diameter motor, the material yield is deteriorated unless the inner region (second region 42) of the plate-shaped rotor core element punched out in the strip-shaped electromagnetic steel plate is effectively used. If the plate-shaped stator core element and the plate-shaped rotor core element are manufactured by using the manufacturing method and the manufacturing apparatus of the present application, the effect that the dimensional accuracy can be improved as compared with the conventional case can be obtained. Further, since the accuracy of the stator core is also improved, it is possible to obtain the effect of suppressing the vibration and noise of the motor caused by the deterioration of the shape accuracy.

本実施の形態１では分割コアの板状固定子コアエレメントの各ティースの向きが圧延方向A4Mと同方向（図７、図１２参照）であるため、板状固定子コアエレメントの各ティースにおける圧延方向と直交方向の角度の違いによる磁気異方性の違いに起因するコギングトルク、あるいはトルクリップルを軽減できる。また、磁気異方性により空間次数の低い電磁加振力を低減できモータの低振動化・低騒音化が実現できるという効果がある。特に、回転子の鉄心に永久磁石を埋め込む、いわゆる磁石埋め込み型のモータでは特に低振動化および低騒音化の課題があるため、本願の構造でより効果を発揮する。磁気特性のよい方向を使用できるためモータのトルクが向上し、効率が上がる、という効果が得られる。
ここでは永久磁石埋め込み型モータについて説明したが，表面磁石型のモータなど他のモータ方式でも同様の効果が得られることは言うまでもない。 In the first embodiment, since the direction of each tooth of the plate-shaped stator core element of the split core is the same as the rolling direction A4M (see FIGS. 7 and 12), rolling of the plate-shaped stator core element in each tooth. It is possible to reduce cogging torque or torque ripple caused by the difference in magnetic anisotropy due to the difference in angle between the direction and the orthogonal direction. In addition, magnetic anisotropy has the effect of reducing the electromagnetic excitation force with a low spatial order and achieving low vibration and low noise of the motor. In particular, a so-called magnet-embedded motor in which a permanent magnet is embedded in the iron core of a rotor has problems of low vibration and low noise, so that the structure of the present application is more effective. Since the direction with good magnetic characteristics can be used, the torque of the motor is improved and the efficiency is improved.
Although the permanent magnet embedded motor has been described here, it goes without saying that the same effect can be obtained with other motor methods such as a surface magnet type motor.

なお、本実施の形態１において、図５および図６の事例では、帯状電磁鋼板４から板状固定子コアエレメント１１を打ち抜くプレス機構として、また、帯状電磁鋼板４から板状回転子コアエレメント２１を打ち抜くプレス機構として、帯状電磁鋼板送給方向Ａ４に、第１から第５の５台のプレス機構５１、５２、５３、５４、５５をタンデムに配設してあるが、５台のプレス機構５１、５２、５３、５４、５５の第１から第５の固定子コアエレメント打抜雄金型511、521、531、541、551および第１から第５の板状固定子コアエレメント打抜雌金型512、522、532、542、552を、１台のプレス機構に配設し、第１から第５の固定子コアエレメント打抜雄金型511、521、531、541、551を時間的にずらして作動させてもよい。また、その場合、１台のプレス機構を帯状電磁鋼板送給方向Ａ４に移動させて、第１から第５の打抜工程を実行してもよい。
また、板状固定子コアエレメント１１を回転電機の軸方向に積層することによって構成された固定子コアエレメント積層ブロック１１ＬＢは、積層される板状固定子コアエレメント１１の各々に、相互に嵌合するかしめを、第１の打抜工程の前工程で施しておくことにより、製造装置５の排出口514、524、・・・から取り出される固定子コアエレメント積層ブロック１１ＬＢの各板状固定子コアエレメント１１の積層状態が崩れにくくなる。
なお、図１２によって回転電機の周方向に配置の板状固定子コアエレメント１１の各々の帯状電磁鋼板圧延方向Ａ４Ｍの向きが全て回転電機の径方向に同一方向となる場合を例示したが、図１３に例示のように、回転電機の周方向に配置の板状固定子コアエレメント１１の各々の帯状電磁鋼板圧延方向Ａ４Ｍの向きが全て回転電機の周方向に同一方向となるようにしてもよく、回転電機の周方向に配置の板状固定子コアエレメント１１の各々の帯状電磁鋼板圧延方向Ａ４Ｍの向きが全て同一方向であれば、相応の効果を奏する。 In the first embodiment, in the examples of FIGS. 5 and 6, as a press mechanism for punching the plate-shaped stator core element 11 from the strip-shaped electromagnetic steel plate 4, and from the strip-shaped electromagnetic steel plate 4 to the plate-shaped rotor core element 21. As a press mechanism for punching, the first to fifth five press mechanisms 51, 52, 53, 54, 55 are arranged in tandem in the strip-shaped electromagnetic steel sheet feeding direction A4, but the five press mechanisms 51, 52, 53, 54, 55 1st to 5th stator core element punching male dies 511, 521, 531, 541, 551 and 1st to 5th plate-shaped stator core element punching female The dies 512, 522, 532, 542, 552 are arranged in one press mechanism, and the first to fifth stator core element punching male dies 511, 521, 531, 541, 551 are temporally arranged. It may be operated by shifting it. Further, in that case, one press mechanism may be moved in the strip-shaped electromagnetic steel sheet feeding direction A4 to execute the first to fifth punching steps.
Further, the stator core element laminated block 11LB configured by laminating the plate-shaped stator core elements 11 in the axial direction of the rotary electric machine is fitted to each other of the laminated plate-shaped stator core elements 11. By performing the caulking in the pre-process of the first punching step, each plate-shaped stator core of the stator core element laminated block 11LB taken out from the discharge ports 514, 524, ... Of the manufacturing apparatus 5 The laminated state of the elements 11 is less likely to collapse.
Note that FIG. 12 illustrates a case where the rolling directions A4M of the strip-shaped electromagnetic steel plates of the plate-shaped stator core elements 11 arranged in the circumferential direction of the rotary electric machine are all the same in the radial direction of the rotary electric machine. As illustrated in 13, each strip-shaped electromagnetic steel plate rolling direction A4M of the plate-shaped stator core elements 11 arranged in the circumferential direction of the rotary electric machine may be all oriented in the same direction in the circumferential direction of the rotary electric machine. If the directions of the strip-shaped electromagnetic steel plate rolling directions A4M of the plate-shaped stator core elements 11 arranged in the circumferential direction of the rotary electric machine are all the same, a corresponding effect is obtained.

実施の形態２．
本実施の形態２も、前述の実施の形態１と同様に、図８および図９に例示のように、同一の電磁鋼板４から板状回転子コアエレメント２１と、板状回転子コアエレメント２１に囲まれる領域から板状固定子コアエレメント１１が材料取りされる。回転子コア２には永久磁石を埋め込むための磁石用孔２１１が構成されている。固定子コア１には各板状固定子コアエレメント同士の固定の為のかしめがされている。 Embodiment 2.
Also in the second embodiment, similarly to the first embodiment described above, as illustrated in FIGS. 8 and 9, the plate-shaped rotor core element 21 and the plate-shaped rotor core element 21 from the same electromagnetic steel plate 4 are also formed. The plate-shaped stator core element 11 is materialized from the area surrounded by. The rotor core 2 is configured with a magnet hole 211 for embedding a permanent magnet. The stator core 1 is crimped for fixing each plate-shaped stator core element to each other.

本実施の形態２は、図８および図９に例示のように、帯状電磁鋼板４から１８個の板状固定子コアエレメント１１を打ち抜く場合の事例である。板状固定子コアエレメント１１の打ち抜く数は、帯状電磁鋼板送給方向Ａ４に対して垂直な板状回転子コアエレメント２１の中心軸CV21上で打ち抜く２個の板状固定子コアエレメント打抜対象T2-3, T2-12を除いて、帯状電磁鋼板送給方向Ａ４に対して平行な板状回転子コアエレメント２１の中心軸CH21と板状回転子コアエレメント２１に対して垂直な板状回転子コアエレメント２１の中心軸CV21のそれぞれに対して対称であるため、前述の実施の形態１の場合と同様に、板状固定子コアエレメント１１に掛かるプレス機構によるパンチング圧力が均等に分散されるので、板状固定子コアエレメント１１の各々の寸法精度が向上する。
また、回転電機の周方向に配置の板状固定子コアエレメント１１の各々の帯状電磁鋼板圧延方向Ａ４Ｍの向きが、図１２に例示のように全て同一方向すなわち径方向となるため、回転電機動作時の板状固定子コアエレメント１１の各々を通る磁束と帯状電磁鋼板圧延方向Ａ４Ｍの向きが同じであるので、帯状電磁鋼板圧延方向Ａ４Ｍは磁気特性が良いことから高トルクの回転電機を実現できるという効果が得られる。 The second embodiment is an example in which 18 plate-shaped stator core elements 11 are punched from the strip-shaped electromagnetic steel sheet 4 as illustrated in FIGS. 8 and 9. The number of punching of the plate-shaped stator core element 11 is the number of punching of two plate-shaped stator core elements punched on the central axis CV21 of the plate-shaped rotor core element 21 perpendicular to the feeding direction A4 of the electrical steel strip. Except for T 2-3 and T 2-12 , the central axis CH21 of the plate-shaped rotor core element 21 parallel to the feeding direction A4 and the plate perpendicular to the plate-shaped rotor core element 21 Since it is symmetrical with respect to each of the central axes CV21 of the shape rotor core element 21, the punching pressure by the press mechanism applied to the plate-shaped stator core element 11 is evenly distributed as in the case of the first embodiment described above. Therefore, the dimensional accuracy of each of the plate-shaped stator core elements 11 is improved.
Further, since the directions of the rolling directions A4M of the strip-shaped electrical steel sheets of the plate-shaped stator core elements 11 arranged in the circumferential direction of the rotary electric machine are all the same direction, that is, the radial direction as illustrated in FIG. 12, the rotary electric machine operates. Since the magnetic flux passing through each of the plate-shaped stator core elements 11 and the direction of the strip-shaped electrical steel sheet rolling direction A4M are the same, the strip-shaped electrical steel sheet rolling direction A4M has good magnetic characteristics, so that a high-torque rotary electric machine can be realized. The effect is obtained.

本実施の形態２では、図９に例示のように１８個の板状固定子コアエレメント１１が第１から第４の打抜工程で４回に分けて生産されている。各打抜工程において、打ち抜かれる板状固定子コアエレメント１１の数はそれぞれ、５個、４個、５個、４個であり、帯状電磁鋼板圧延方向Ａ４Ｍ（帯状電磁鋼板送給方向Ａ４に平行な方向Ａ５）に対して垂直な方向Ａ６に板状固定子コアエレメント１１が同時に打ち抜かれる。そのため、図７に例示のように、各板状固定子コアエレメント打抜対象T2-1，T2-2，T2-3，T2-4，T2-5，T2-6，T2-7，T2-8，T2-9，T2-10，T2-11，T2-12，T2-13，T2-14，T2-15，T2-16，T2-17，T2-18が打ち抜かれて製造された板状固定子コアエレメントは矢印D13のように相互に混ざることなく個々に対応する板状固定子コアエレメント蓄積室513，523，533，543（図５参照）の個々に集積され、従って、第１から第４の打抜工程で製造された板状固定子コアエレメントの固定子コアエレメント積層ブロック１１ＬＢは、相互に混ざることなく製造装置５の第１から第４の固定子コアエレメント積層ブロック排出口514、524、534、544の個別の排出口から取り出され、固定子コアエレメント積層ブロック１１ＬＢの回収方法が容易になり、生産効率が向上する。 In the second embodiment, as illustrated in FIG. 9, 18 plate-shaped stator core elements 11 are produced in four steps in the first to fourth punching steps. In each punching process, the number of plate-shaped stator core elements 11 punched is 5, 4, 5, and 4, respectively, and is parallel to the strip-shaped electrical steel sheet rolling direction A4M (belt-shaped electrical steel sheet feeding direction A4). The plate-shaped stator core element 11 is simultaneously punched in the direction A6 perpendicular to the direction A5). Therefore, as illustrated in Fig. 7, each plate-shaped stator core element is punched out T 2-1 、 T 2-2 、 T 2-3 、 T 2-4 、 T 2-5 、 T 2-6 ， T 2-7 , T 2-8 , T 2-9 , T 2-10 , T 2-11 , T 2-12 , T 2-13 , T 2-14 , T 2-15 , T 2-16 , Plate-shaped stator core elements manufactured by punching T 2-17 and T 2-18 are individually corresponding plate-shaped stator core element storage chambers 513, 523, 533 as shown by arrow D13 without mixing with each other. , 543 (see FIG. 5) are individually integrated, and thus the stator core element laminated block 11LB of the plate-shaped stator core elements manufactured in the first to fourth punching steps is manufactured without mixing with each other. It is taken out from the individual discharge ports of the first to fourth stator core element laminated block discharge ports 514, 524, 534, 544 of the apparatus 5, and the recovery method of the stator core element laminated block 11LB becomes easy, and the production efficiency. Is improved.

また、前述の実施の形態１の場合と同様に、第１から第４の各打抜工程において、隣り合う板状固定子コアエレメント打抜対象は、帯状電磁鋼板送給方向Ａ４に対して、帯状電磁鋼板送給方向Ａ４の板状固定子コアエレメント幅L14（図３参照）以上の間隔L16（図７参照）を空け、帯状電磁鋼板送給方向Ａ４に垂直な方向に対して、帯状電磁鋼板送給方向Ａ４に垂直な方向の板状固定子コアエレメント幅L15（図３参照）以上の間隔L17（図７参照）を空けるので、プレス機構によるパンチング荷重を受けるダイプレートに剛性を持たせることができるため、固定子コアエレメント積層ブロック１１ＬＢ（図４参照）を構成する各板状固定子コアエレメント１１の寸法精度がさらに向上する。 Further, as in the case of the first embodiment described above, in each of the first to fourth punching steps, the adjacent plate-shaped stator core element punching target is the strip-shaped electromagnetic steel sheet feeding direction A4. Band-shaped electromagnetic steel plate Feeding direction A4 plate-shaped stator core element width L14 (see FIG. 3) or more spacing L16 (see FIG. 7), strip-shaped electromagnetic steel strip in the direction perpendicular to the feeding direction A4 Since a space L17 (see FIG. 7) equal to or greater than the plate-shaped stator core element width L15 (see FIG. 3) in the direction perpendicular to the steel plate feeding direction A4 is provided, the die plate that receives the punching load by the press mechanism is made rigid. Therefore, the dimensional accuracy of each plate-shaped stator core element 11 constituting the stator core element laminated block 11LB (see FIG. 4) is further improved.

実施の形態３．
本実施の形態３も、前述の実施の形態１および２と同様に、図１０および図１１に例示のように、同一の電磁鋼板４から板状回転子コアエレメント２１と、板状回転子コアエレメント２１に囲まれる領域から板状固定子コアエレメント１１が材料取りされる。回転子コア２には永久磁石を埋め込むための磁石用孔２１１が構成されている。固定子コア１には各板状固定子コアエレメント同士の固定の為のかしめがされている。 Embodiment 3.
In the third embodiment as well, similarly to the first and second embodiments described above, as illustrated in FIGS. 10 and 11, the plate-shaped rotor core element 21 and the plate-shaped rotor core are formed from the same electromagnetic steel plate 4. The plate-shaped stator core element 11 is materialized from the region surrounded by the element 21. The rotor core 2 is configured with a magnet hole 211 for embedding a permanent magnet. The stator core 1 is crimped for fixing each plate-shaped stator core element to each other.

本実施の形態３は、図１０および図１１に例示のように、帯状電磁鋼板４から１２個の板状固定子コアエレメント１１を打ち抜く場合の事例である。板状固定子コアエレメント１１の打ち抜く数は、帯状電磁鋼板送給方向Ａ４に対して垂直な板状回転子コアエレメント２１の中心軸CV21上で打ち抜く２個の板状固定子コアエレメント打抜対象T3-2, T3-5を除いて、帯状電磁鋼板送給方向Ａ４に対して平行な板状回転子コアエレメント２１の中心軸CH21と板状回転子コアエレメント２１に対して垂直な板状回転子コアエレメント２１の中心軸CV21のそれぞれに対して対称であるため、前述の実施の形態１の場合と同様に、板状固定子コアエレメント１１に掛かるプレス機構によるパンチング圧力が均等に分散されるので、板状固定子コアエレメント１１の各々の寸法精度が向上する。 The third embodiment is an example in which 12 plate-shaped stator core elements 11 are punched from the strip-shaped electromagnetic steel sheet 4 as illustrated in FIGS. 10 and 11. The number of punching of the plate-shaped stator core element 11 is the number of punching of two plate-shaped stator core elements punched on the central axis CV21 of the plate-shaped rotor core element 21 perpendicular to the feeding direction A4 of the electrical steel strip. Except for T 3-2 and T 3-5 , the central axis CH21 of the plate-shaped rotor core element 21 parallel to the feeding direction A4 and the plate perpendicular to the plate-shaped rotor core element 21 Since it is symmetrical with respect to each of the central axes CV21 of the shape rotor core element 21, the punching pressure by the press mechanism applied to the plate-shaped stator core element 11 is evenly distributed as in the case of the first embodiment described above. Therefore, the dimensional accuracy of each of the plate-shaped stator core elements 11 is improved.

また、回転電機の周方向に配置の板状固定子コアエレメント１１の各々の帯状電磁鋼板圧延方向Ａ４Ｍの向きが、図１２に例示のように全て同一方向すなわち径方向となるため、回転電機の周方向に配置の板状固定子コアエレメント１１の各々の帯状電磁鋼板圧延方向Ａ４Ｍと直交方向の角度の違いによる磁気異方性の違いに起因するコギングトルク、あるいはトルクリップルを軽減できる。
また、回転電機の周方向に配置の板状固定子コアエレメント１１の各々の帯状電磁鋼板圧延方向Ａ４Ｍの向きが、図１２に例示のように全て同一方向すなわち径方向となるため、回転電機動作時の板状固定子コアエレメント１１の各々を通る磁束と帯状電磁鋼板圧延方向Ａ４Ｍの向きが同じであるので、帯状電磁鋼板圧延方向Ａ４Ｍは磁気特性が良いことから高トルクの回転電機を実現できるという効果が得られる。 Further, since the directions of the rolling directions A4M of the strip-shaped electromagnetic steel sheets of the plate-shaped stator core elements 11 arranged in the circumferential direction of the rotary electric machine are all the same direction, that is, the radial direction as illustrated in FIG. It is possible to reduce cogging torque or torque ripple caused by the difference in magnetic anisotropy due to the difference in the rolling direction A4M and the angle in the orthogonal direction of each of the strip-shaped electromagnetic steel sheet core elements 11 arranged in the circumferential direction.
Further, since the directions of the rolling directions A4M of the strip-shaped electrical steel sheets of the plate-shaped stator core elements 11 arranged in the circumferential direction of the rotary electric machine are all the same direction, that is, the radial direction as illustrated in FIG. 12, the rotary electric machine operates. Since the magnetic flux passing through each of the plate-shaped stator core elements 11 and the direction of the strip-shaped electrical steel sheet rolling direction A4M are the same, the strip-shaped electrical steel sheet rolling direction A4M has good magnetic characteristics, so that a high-torque rotary electric machine can be realized. The effect is obtained.

本実施の形態３では、図１１に例示のように１２個の板状固定子コアエレメント１１が第１から第４の打抜工程で４回に分けて生産されている。各打抜工程において、打ち抜かれる板状固定子コアエレメント１１の数はそれぞれ、３個、３個、３個、３個であり、帯状電磁鋼板圧延方向Ａ４Ｍ（帯状電磁鋼板送給方向Ａ４に平行な方向Ａ５）に対して垂直な方向Ａ６に板状固定子コアエレメント１１が同時に打ち抜かれることがないため、図１１に例示のように、各板状固定子コアエレメント打抜対象T3-1，T3-2，T3-3，T3-4，T3-5，T3-6，T3-7，T3-8，T3-9，T3-10，T3-11，T3-12が打ち抜かれて製造された板状固定子コアエレメントは矢印D13のように相互に混ざることなく個々に対応する板状固定子コアエレメント蓄積室513，523，533，543（図５参照）の個々に集積され、従って、第１から第４の打抜工程で製造された板状固定子コアエレメントの固定子コアエレメント積層ブロック１１ＬＢは、相互に混ざることなく製造装置５の第１から第４の固定子コアエレメント積層ブロック排出口514、524、534、544の個別の排出口から取り出され、固定子コアエレメント積層ブロック１１ＬＢの回収方法が容易になり、生産効率が向上する。 In the third embodiment, as illustrated in FIG. 11, twelve plate-shaped stator core elements 11 are produced in four steps in the first to fourth punching steps. In each punching process, the number of plate-shaped stator core elements 11 punched is 3, 3, 3, and 3, respectively, and is parallel to the strip-shaped electromagnetic steel sheet rolling direction A4M (belt-shaped electromagnetic steel sheet feeding direction A4). Since the plate-shaped stator core element 11 is not punched at the same time in the direction A6 perpendicular to the direction A5), as illustrated in FIG. 11, each plate-shaped stator core element is punched out T 3-1. , T 3-2 , T 3-3 , T 3-4 , T 3-5 , T 3-6 , T 3-7 , T 3-8 , T 3-9 , T 3-10 , T 3-11 , T 3-12 are punched out and manufactured. Plate-shaped stator core elements correspond to each other without mixing with each other as shown by arrow D13. Plate-shaped stator core element storage chambers 513, 523, 533, 543 (Fig. The stator core element laminated block 11LB of the plate-shaped stator core element, which is individually integrated (see 5) and thus manufactured in the first to fourth punching steps, is the first of the manufacturing apparatus 5 without being mixed with each other. The stator core element laminated block 11LB is taken out from the individual outlets of the first to fourth stator core element laminated block discharge ports 514, 524, 534, and 544, and the method of collecting the stator core element laminated block 11LB is facilitated, and the production efficiency is improved.

また、本実施の形態３のように、打ち抜く工程毎に、板状固定子コアエレメント１１を打ち抜く数をできるだけ均等にすることで板状固定子コアエレメント１１に掛かるプレス荷重が分散され、寸法精度がさらに向上する。 Further, as in the third embodiment, the press load applied to the plate-shaped stator core element 11 is dispersed by making the number of punching plate-shaped stator core elements 11 as uniform as possible for each punching process, resulting in dimensional accuracy. Is further improved.

なお、本実施の形態３の場合、打抜工程で打ち抜く板状固定子コアエレメント１１の個数は以下のように一般化することができる。すなわち、
板状回転子コアエレメント２１の内側で打ち抜かれる板状固定子コアエレメント１１の数を自然数a、
板状固定子コアエレメント１１が打ち抜かれる打抜工程数を自然数bとすると、
a/bが自然数の場合、
e=a/bとなるような自然数eとおくと、
板状固定子コアエレメント１１の打抜工程で打ち抜く板状固定子コアエレメント１１の数は自然数eで表すことができる。
打ち抜く工程毎に打ち抜く数をできるだけ均等にすることで固定子コア１に掛かるプレス荷重が分散され、寸法精度がさらに向上する。 In the case of the third embodiment, the number of plate-shaped stator core elements 11 punched in the punching step can be generalized as follows. That is,
The number of plate-shaped stator core elements 11 punched inside the plate-shaped rotor core element 21 is a natural number a,
Assuming that the number of punching steps in which the plate-shaped stator core element 11 is punched is a natural number b,
If a / b is a natural number
If we set a natural number e such that e = a / b,
The number of plate-shaped stator core elements 11 punched in the punching step of the plate-shaped stator core element 11 can be represented by a natural number e.
By making the number of punches as uniform as possible in each punching process, the press load applied to the stator core 1 is dispersed, and the dimensional accuracy is further improved.

前述の実施の形態１から３は、観点を変えると、次のような特徴事項がある。
特徴事項１：
打ち抜かれた電磁鋼板を積層して製造される積層コアにおいて、
回転子鉄心と固定子鉄心を回転子鉄心内側から材料取りする、
固定子鉄心を打ち抜く工程毎で複数の固定子鉄心を同時に打ち抜く、
かつ複数の上記工程で固定子鉄心を打ち抜く
積層コアの製造方法であり、
固定子鉄心を打ち抜く複数の工程において、所定間隔を保ちながら複数の固定子鉄心を同時に打ち抜くため、寸法精度が向上する効果がある。
特徴事項２：
特徴事項１の製造方法において、
固定子鉄心を打ち抜く工程毎に積層コアを金型送り方向に対して垂直な方向に、打ち抜いた固定子鉄心が混ざることなく排出される
積層コアの製造方法であり、
積層コアの回収方法が容易であるため、生産効率がより向上する効果がある。
特徴事項３：
特徴事項１の製造方法において、
固定子鉄心を回転子鉄心内側から材料取りする場合、
回転子鉄心内側で打ち抜く固定子鉄心の数を自然数a、
固定子鉄心を打ち抜く工程数を自然数bとすると、
a/bが自然数でない場合、
c>a/b>dとなるような隣り合う自然数c,dとおくと、
固定子鉄心を打ち抜く工程で打ち抜く固定子鉄心の数は自然数c又はdで表すことができる
積層コアの製造方法であり、
固定子鉄心を打ち抜く工程毎に打ち抜く数をできるだけ均等にすることで、固定子鉄心に掛かる圧力が分散され、寸法精度がさらに向上する効果がある。
特徴事項４：
特徴事項１の製造方法において、
固定子鉄心を回転子鉄心内側から材料取りする場合、
回転子鉄心内側で打ち抜く固定子鉄心の数を自然数a、
固定子鉄心を打ち抜く工程数を自然数bとすると、
a/bが自然数の場合、
e=a/bとなるような自然数eとおくと、
固定子鉄心を打ち抜く工程で打ち抜く固定子鉄心の数は自然数eで表すことができる
積層コアの製造方法であり、
固定子鉄心を打ち抜く工程毎に打ち抜く数をできるだけ均等にすることで、
固定子鉄心に掛かる圧力が分散され、寸法精度がさらに向上する効果がある。
特徴事項５：
特徴事項１の製造方法において、
固定子鉄心を打ち抜く工程において、隣り合う固定子鉄心はプレスの送り方向に対して、プレス送り方向のティース幅以上の間隔を空ける
ティース形状の積層コアの製造方法であり、
同時に固定子鉄心を打ち抜く際に、隣り合う固定子鉄心の間隔を保つことができるため、固定子鉄心の寸法精度がより向上する効果がある。
特徴事項６：
特徴事項１の製造方法において、
固定子鉄心を打ち抜く工程において、隣り合う固定子鉄心はプレスの送り方向に垂直な方向に対して、プレス送り方向に対して垂直な方向のティース幅以上の間隔を空ける
ティース形状の積層コアの製造方法であり、
同時に固定子鉄心を打ち抜く際に、隣り合う固定子鉄心の間隔を保つことができるため、固定子鉄心の寸法精度がより向上する効果がある。
特徴事項７：
特徴事項１の製造方法において、
回転子鉄心内側から材料取りする固定子鉄心の数は、
プレス送り方向に対して平行な回転子鉄心の中心軸上で打ち抜く固定鉄心の数を除いて、プレス送り方向に対して平行な回転子鉄心の中心軸に対して対称である
積層コアの製造方法であり、
固定子鉄心の配置を対称にすることで、固定子鉄心に掛かる圧力が均等に分散されるため、寸法精度がさらに向上する効果がある。
特徴事項８：
特徴事項１の製造方法において、
回転子鉄心内側から材料取りする固定子鉄心の数は、
プレス送り方向に対して垂直な回転子鉄心の中心軸上で打ち抜く固定鉄心の数を除いて、プレス送り方向に対して垂直な回転子鉄心の中心軸に対して対称である
積層コアの製造方法であり、
固定子鉄心の配置を対称にすることで、固定子鉄心に掛かる圧力が均等に分散されるため、寸法精度がさらに向上する効果がある。
特徴事項９：
特徴事項１の製造方法において、
固定子鉄心のヨークの向きがすべて同一方向である
積層コアの製造方法であり、
圧延方向と直行方向の違いによる磁気異方性の違いに起因するコギングトルク、あるいはトルクリップルを軽減できる。磁気特性のよい方向を使用できるため高トルクとなるという効果が得られる。
特徴事項１０：
打ち抜かれた電磁鋼板を積層して製造される積層コアにおいて、
回転子鉄心と固定子鉄心を回転子鉄心内側から打ち抜かれる、
固定子鉄心を打ち抜く工程毎で複数の固定子鉄心を同時に抜かれる、
かつ複数の上記工程で固定子鉄心が打ち抜かれる
金型を有する積層コアの製造装置であり、
固定子鉄心が打ち抜かれる複数の工程において、所定間隔を保ちながら複数の固定子鉄心が同時に打ち抜かれるため、寸法精度が向上する効果がある。
特徴事項１１：
特徴事項１０の製造装置において、
固定子鉄心が打ち抜かれる工程毎に積層コアを金型送り方向に対して垂直な方向に、打ち抜かれた固定子鉄心が混ざることなく排出される
金型を有する積層コアの製造装置であり、
積層コアの回収方法が容易であるため、生産効率がより向上する効果がある。
特徴事項１２：
特徴事項１０の製造装置において、
固定子鉄心を回転子鉄心内側から打ち抜かれる場合、
回転子鉄心内側で打ち抜かれる固定子鉄心の数を自然数a、
固定子鉄心が打ち抜かれる工程数を自然数bとすると、
a/bが自然数でない場合、
c>a/b>dとなるような隣り合う自然数c,dとおくと、
固定子鉄心が打ち抜かれる工程で打ち抜かれる固定子鉄心の数は自然数c又はdで表すことができる
金型を有する積層コアの製造装置であり、
固定子鉄心が打ち抜かれる工程毎に打ち抜かれる数をできるだけ均等にすることで、固定子鉄心に掛かる圧力が分散され、寸法精度がさらに向上する効果がある。
特徴事項１３：
特徴事項１０の製造装置において、
固定子鉄心を回転子鉄心内側から打ち抜かれる場合、
回転子鉄心内側で打ち抜かれる固定子鉄心の数を自然数a、
固定子鉄心が打ち抜かれる工程数を自然数bとすると、
a/bが自然数の場合、
e=a/bとなるような自然数eとおくと、
固定子鉄心が打ち抜かれる工程で打ち抜かれる固定子鉄心の数は自然数eで表すことができる
金型を有する積層コアの製造装置であり、
固定子鉄心が打ち抜かれる工程毎に打ち抜かれる数をできるだけ均等にすることで、固定子鉄心に掛かる圧力が分散され、寸法精度がさらに向上する効果がある。
特徴事項１４：
請求項１０の製造装置において、
固定子鉄心が打ち抜かれる工程において、隣り合う固定子鉄心はプレスの送り方向に対して、プレス送り方向のティース幅以上の間隔を空ける
金型を有する積層コアの製造装置であり、
同時に固定子鉄心が打ち抜かれる際に、隣り合う固定子鉄心の間隔を保つことができるため、固定子鉄心の寸法精度がより向上する効果がある。
特徴事項１５：
請求項１０の製造装置において、
固定子鉄心が打ち抜かれる工程において、隣り合う固定子鉄心はプレスの送り方向に垂直な方向に対して、プレス送り方向に対して垂直な方向のティース幅以上の間隔を空ける
金型を有する積層コアの製造装置であり、
同時に固定子鉄心が打ち抜かれる際に、隣り合う固定子鉄心の間隔を保つことができるため、固定子鉄心の寸法精度がより向上する効果がある。
特徴事項１６：
特徴事項１０の製造装置において、
回転子鉄心内側から材料取りする固定子鉄心の数は、
プレス送り方向に対して平行な回転子鉄心の中心軸上で打ち抜かれる固定鉄心の数を除いて、プレス送り方向に対して平行な回転子鉄心の中心軸に対して対称である
金型を有する積層コアの製造装置であり、
固定子鉄心の配置を対称にすることで、固定子鉄心に掛かる圧力が均等に分散されるため、寸法精度がさらに向上する効果がある。
特徴事項１７：
特徴事項１０の製造装置において、
回転子鉄心内側から材料取りする固定子鉄心の数は、
プレス送り方向に対して垂直な回転子鉄心の中心軸上で打ち抜かれる固定鉄心の数を除いて、プレス送り方向に対して垂直な回転子鉄心の中心軸に対して対称である
金型を有する積層コアの製造装置であり、
固定子鉄心の配置を対称にすることで、固定子鉄心に掛かる圧力が均等に分散されるため、寸法精度がさらに向上する効果がある。
特徴事項１８：
特徴事項１０の製造装置において、
固定子鉄心のヨークの向きがすべて同一方向である
金型を有する積層コアの製造装置であり、
圧延方向と直行方向の違いによる磁気異方性の違いに起因するコギングトルク、あるいはトルクリップル、を軽減できる。磁気特性のよい方向を使用できるため高トルクとなるという効果が得られる。
特徴事項１９：
打ち抜かれた電磁鋼板を積層して製造される積層コアの製造方法であって、
回転子鉄心と固定子鉄心を回転子鉄心内側から材料取りする、
固定子鉄心のヨークの向きがすべて同一方向である
回転電機であり、
圧延方向と直行方向の違いによる磁気異方性の違いに起因するコギングトルク、あるいはトルクリップル、を軽減できる。磁気特性のよい方向を使用できるため高トルクとなるという効果が得られる。 From the viewpoint, the above-described embodiments 1 to 3 have the following features.
Feature 1:
In a laminated core manufactured by laminating punched electrical steel sheets
Take the material from the rotor core and the stator core from the inside of the rotor core.
Punching multiple stator cores at the same time in each process
In addition, it is a manufacturing method of a laminated core that punches out the stator core in the above-mentioned multiple steps.
In a plurality of steps of punching the stator cores, since the plurality of stator cores are punched at the same time while maintaining a predetermined interval, there is an effect of improving the dimensional accuracy.
Feature 2:
In the manufacturing method of feature 1,
It is a manufacturing method of a laminated core in which the laminated core is discharged in a direction perpendicular to the die feeding direction in each process of punching the stator core without mixing the punched stator core.
Since the method of recovering the laminated core is easy, there is an effect that the production efficiency is further improved.
Feature 3:
In the manufacturing method of feature 1,
When removing the material from the inside of the rotor core,
The number of stator cores punched inside the rotor core is a natural number a,
If the number of steps for punching the stator core is a natural number b,
If a / b is not a natural number
If we set adjacent natural numbers c and d such that c> a / b> d,
The number of stator cores punched in the process of punching the stator cores is a method for manufacturing a laminated core that can be represented by a natural number c or d.
By making the number of punches as uniform as possible for each step of punching the stator core, the pressure applied to the stator core is dispersed, which has the effect of further improving the dimensional accuracy.
Feature 4:
In the manufacturing method of feature 1,
When removing the material from the inside of the rotor core,
The number of stator cores punched inside the rotor core is a natural number a,
If the number of steps for punching the stator core is a natural number b,
If a / b is a natural number
If we set a natural number e such that e = a / b,
The number of stator cores punched in the process of punching the stator cores is a method of manufacturing a laminated core that can be represented by a natural number e.
By making the number of punches as uniform as possible for each process of punching the stator core
The pressure applied to the stator core is dispersed, which has the effect of further improving dimensional accuracy.
Feature 5:
In the manufacturing method of feature 1,
In the process of punching the stator cores, the adjacent stator cores are a method for manufacturing a teeth-shaped laminated core having a space equal to or larger than the teeth width in the press feed direction with respect to the press feed direction.
At the same time, when the stator cores are punched out, the distance between the adjacent stator cores can be maintained, which has the effect of further improving the dimensional accuracy of the stator cores.
Feature 6:
In the manufacturing method of feature 1,
In the process of punching the stator cores, the manufacturing of teeth-shaped laminated cores in which adjacent stator cores are spaced apart from the tooth width in the direction perpendicular to the press feed direction with respect to the direction perpendicular to the press feed direction. Is the way
At the same time, when the stator cores are punched out, the distance between the adjacent stator cores can be maintained, which has the effect of further improving the dimensional accuracy of the stator cores.
Feature 7:
In the manufacturing method of feature 1,
The number of stator cores that take material from the inside of the rotor core is
A method for manufacturing a laminated core that is symmetrical with respect to the central axis of the rotor core parallel to the press feed direction, except for the number of fixed cores punched on the central axis of the rotor core parallel to the press feed direction. And
By making the arrangement of the stator cores symmetrical, the pressure applied to the stator cores is evenly distributed, which has the effect of further improving the dimensional accuracy.
Feature 8:
In the manufacturing method of feature 1,
The number of stator cores that take material from the inside of the rotor core is
A method for manufacturing a laminated core that is symmetrical with respect to the central axis of the rotor core perpendicular to the press feed direction, except for the number of fixed cores punched on the central axis of the rotor core perpendicular to the press feed direction. And
By making the arrangement of the stator cores symmetrical, the pressure applied to the stator cores is evenly distributed, which has the effect of further improving the dimensional accuracy.
Feature 9:
In the manufacturing method of feature 1,
This is a method for manufacturing a laminated core in which the yokes of the stator core are all in the same direction.
Cogging torque or torque ripple caused by the difference in magnetic anisotropy due to the difference between the rolling direction and the orthogonal direction can be reduced. Since the direction with good magnetic characteristics can be used, the effect of high torque can be obtained.
Feature 10:
In a laminated core manufactured by laminating punched electrical steel sheets
The rotor core and the stator core are punched from the inside of the rotor core.
Multiple stator cores can be punched out at the same time in each process of punching the stator cores.
Moreover, it is a manufacturing apparatus for a laminated core having a die in which the stator core is punched out in a plurality of the above steps.
In a plurality of steps in which the stator cores are punched out, a plurality of stator cores are punched out at the same time while maintaining a predetermined interval, which has an effect of improving dimensional accuracy.
Feature 11:
In the manufacturing apparatus of the feature item 10,
It is a manufacturing device for laminated cores having a mold in which the laminated core is discharged in the direction perpendicular to the mold feed direction without mixing the punched stator cores in each process in which the stator cores are punched.
Since the method of recovering the laminated core is easy, there is an effect that the production efficiency is further improved.
Feature 12:
In the manufacturing apparatus of the feature item 10,
When the stator core is punched from the inside of the rotor core
The number of stator cores punched inside the rotor core is a natural number a,
Assuming that the number of steps in which the stator core is punched is a natural number b,
If a / b is not a natural number
If we set adjacent natural numbers c and d such that c> a / b> d,
The number of stator cores punched in the process of punching the stator cores is a laminated core manufacturing device with a die that can be represented by a natural number c or d.
By making the number of punched cores as uniform as possible in each process of punching the stator cores, the pressure applied to the stator cores is dispersed, which has the effect of further improving the dimensional accuracy.
Feature 13:
In the manufacturing apparatus of the feature item 10,
When the stator core is punched from the inside of the rotor core
The number of stator cores punched inside the rotor core is a natural number a,
Assuming that the number of steps in which the stator core is punched is a natural number b,
If a / b is a natural number
If we set a natural number e such that e = a / b,
The number of stator cores punched out in the process of punching the stator cores is a laminated core manufacturing device with a mold that can be represented by a natural number e.
By making the number of punched cores as uniform as possible in each process of punching the stator cores, the pressure applied to the stator cores is dispersed, which has the effect of further improving the dimensional accuracy.
Feature 14:
In the manufacturing apparatus of claim 10,
In the process of punching the stator cores, the adjacent stator cores are laminated core manufacturing equipment having dies that have a space equal to or greater than the teeth width in the press feed direction with respect to the press feed direction.
At the same time, when the stator cores are punched out, the distance between the adjacent stator cores can be maintained, which has the effect of further improving the dimensional accuracy of the stator cores.
Feature 15:
In the manufacturing apparatus of claim 10,
In the process of punching the stator cores, the adjacent stator cores are laminated cores with a die having a tooth width or more in the direction perpendicular to the press feed direction with respect to the direction perpendicular to the press feed direction. It is a manufacturing equipment of
At the same time, when the stator cores are punched out, the distance between the adjacent stator cores can be maintained, which has the effect of further improving the dimensional accuracy of the stator cores.
Feature 16:
In the manufacturing apparatus of the feature item 10,
The number of stator cores that take material from the inside of the rotor core is
Has a mold that is symmetrical with respect to the central axis of the rotor core parallel to the press feed direction, except for the number of fixed cores punched on the central axis of the rotor core parallel to the press feed direction. It is a manufacturing equipment for laminated cores.
By making the arrangement of the stator cores symmetrical, the pressure applied to the stator cores is evenly distributed, which has the effect of further improving the dimensional accuracy.
Feature 17:
In the manufacturing apparatus of the feature item 10,
The number of stator cores that take material from the inside of the rotor core is
Has a mold that is symmetrical with respect to the central axis of the rotor core perpendicular to the press feed direction, except for the number of fixed cores punched on the central axis of the rotor core perpendicular to the press feed direction. It is a manufacturing equipment for laminated cores.
By making the arrangement of the stator cores symmetrical, the pressure applied to the stator cores is evenly distributed, which has the effect of further improving the dimensional accuracy.
Feature 18:
In the manufacturing apparatus of the feature item 10,
A laminated core manufacturing device with a mold in which the yokes of the stator core are all in the same direction.
It is possible to reduce cogging torque or torque ripple caused by the difference in magnetic anisotropy due to the difference between the rolling direction and the orthogonal direction. Since the direction with good magnetic characteristics can be used, the effect of high torque can be obtained.
Feature 19:
It is a manufacturing method of a laminated core manufactured by laminating punched electrical steel sheets.
Take the material from the rotor core and the stator core from the inside of the rotor core.
It is a rotary electric machine in which the yokes of the stator core are all in the same direction.
It is possible to reduce cogging torque or torque ripple caused by the difference in magnetic anisotropy due to the difference between the rolling direction and the orthogonal direction. Since the direction with good magnetic characteristics can be used, the effect of high torque can be obtained.

なお、各図中、同一符合は同一または相当部分を示す。
なお、本願は、様々な例示的な実施の形態及び実施例が記載されているが、１つ、または複数の実施の形態に記載された様々な特徴、態様、及び機能は特定の実施の形態の適用に限られるのではなく、単独で、または様々な組み合わせで実施の形態に適用可能である。
従って、例示されていない無数の変形例が、本願に開示される技術の範囲内において想定される。例えば、少なくとも１つの構成要素を変形する場合、追加する場合または省略する場合、さらには、少なくとも１つの構成要素を抽出し、他の実施の形態の構成要素と組み合わせる場合が含まれるものとする。
なお、各図中、同一符合は同一または相当部分を示す。 In each figure, the same sign indicates the same or corresponding part.
In addition, although various exemplary embodiments and examples are described in the present application, various features, embodiments, and functions described in one or more embodiments are specific embodiments. It is not limited to the application of, but can be applied to the embodiment alone or in various combinations.
Therefore, innumerable variations not illustrated are envisioned within the scope of the techniques disclosed in the present application. For example, it is assumed that at least one component is modified, added or omitted, and further, at least one component is extracted and combined with the components of other embodiments.
In each figure, the same sign indicates the same or corresponding part.

１ 固定子コア、１１ 板状固定子コアエレメント、１１Ｔ ティース部、１１ＣＢ コアバック部、１１ＬＢ 固定子コアエレメント積層ブロック、１２ フレーム、２ 回転子コア、２１ 板状回転子コアエレメント、２１１ 磁石用孔、３ 回転軸、４ 帯状電磁鋼板、４１ 第１の領域、４２ 第２の領域、Ａ４ 帯状電磁鋼板送給方向、５ 製造装置、５０ 帯状電磁鋼板平面化機構、501 外側パイロットピン、502 内側パイロットピン、５１ 第１のプレス機構、511 第１の板状固定子コアエレメント打抜雄金型、512 第１の板状固定子コアエレメント打抜雌金型、513 第１の板状固定子コアエレメント蓄積室、514 第１の固定子コアエレメント積層ブロック排出口、５２ 第２のプレス機構、521 第２の板状固定子コアエレメント打抜雄金型、522 第２の板状固定子コアエレメント打抜雌金型、523 第２の板状固定子コアエレメント蓄積室、524 第２の固定子コアエレメント積層ブロック排出口、５３ 第３のプレス機構、531 第３の板状固定子コアエレメント打抜雄金型、532 第３の板状固定子コアエレメント打抜雌金型、533 第３の板状固定子コアエレメント蓄積室、534 第３の固定子コアエレメント積層ブロック排出口、５４ 第４のプレス機構、541 第４の板状固定子コアエレメント打抜雄金型、542 第４の板状固定子コアエレメント打抜雌金型、543 第４の板状固定子コアエレメント蓄積室、544 第４の固定子コアエレメント積層ブロック排出口、５５ 第５のプレス機構、551 第５の板状回転子コアエレメント打抜雄金型、552 第５の板状回転子コアエレメント打抜雌金型、553 第５の板状回転子コアエレメント蓄積室、554 回転子コアエレメント積層ブロック排出口、５６ スクラップ切断機構、561 電磁鋼板スクラップ切断雄金型、562 電磁鋼板スクラップ切断雌金型、563 切断電磁鋼板スクラップ蓄積室、564 切断電磁鋼板スクラップ排出口、A4M 帯状電磁鋼板圧延方向、T1-1，T1-2，T1-3，T1-4，T1-5，T1-6，T1-7，T1-8，T1-9，T1-10 板状固定子コアエレメント打抜対象、T2-1，T2-2，T2-3，T2-4，T2-5，T2-6，T2-7，T2-8，T2-9，T2-10，T2-11，T2-12，T2-13，T2-14，T2-15，T2-16，T2-17，T2-18 板状固定子コアエレメント打抜対象、T3-1，T3-2，T3-3，T3-4，T3-5，T3-6，T3-7，T3-8，T3-9，T3-10，T3-11，T3-12 板状固定子コアエレメント打抜対象。 1 Stator core, 11 plate-shaped stator core element, 11T teeth part, 11CB core back part, 11LB stator core element laminated block, 12 frames, 2 rotor cores, 21 plate-shaped rotor core elements, 211 holes for magnets 3, Rotating shaft, 4 strip electromagnetic steel plate, 41 1st region, 42 2nd region, A4 strip electromagnetic steel plate feeding direction, 5 manufacturing equipment, 50 strip electromagnetic steel plate flattening mechanism, 501 outer pilot pin, 502 inner pilot Pin, 51 1st press mechanism, 511 1st plate-shaped stator core element punching male mold, 512 1st plate-shaped stator core element punching female mold, 513 1st plate-shaped stator core Element storage chamber, 514 1st stator core element laminated block discharge port, 52 2nd press mechanism, 521 2nd plate-shaped stator core element punching male mold, 522 2nd plate-shaped stator core element Punching female mold, 523 2nd plate-shaped stator core element storage chamber, 524 2nd stator core element laminated block discharge port, 53 3rd press mechanism, 531 3rd plate-shaped stator core element punching Punching mold, 532 3rd plate-shaped stator core element punching female mold, 533 3rd plate-shaped stator core element storage chamber, 534 3rd stator core element laminated block discharge port, 54 4th Press mechanism, 541 4th plate-shaped stator core element punching male mold, 542 4th plate-shaped stator core element punching female mold, 543 4th plate-shaped stator core element storage chamber, 544 4th stator core element laminated block discharge port, 55 5th press mechanism, 551 5th plate-shaped rotor core element punching male mold, 552 5th plate-shaped rotor core element punching female mold , 553 5th plate-shaped stator core element storage chamber, 554 stator core element laminated block outlet, 56 scrap cutting mechanism, 561 electromagnetic steel plate scrap cutting male mold, 562 electromagnetic steel plate scrap cutting female mold, 563 cutting electromagnetic Steel plate scrap storage chamber, 564 Cut electromagnetic steel plate scrap discharge port, A4M strip electromagnetic steel plate rolling direction, T 1-1 , T 1-2 , T 1-3 , T 1-4 , T 1-5 , T 1-6 , T 1-7 , T 1-8 , T 1-9 , T 1-10 Plate-shaped stator core element punching target, T 2-1 , T 2-2 , T 2-3 , T 2-4 , T 2-5 , T 2-6 , T 2-7 , T 2-8 , T 2-9 , T 2-10 , T 2-11 , T 2-12 , T 2-13 , T 2-14 , T 2-15 , T 2-16 , T 2-17 , T 2-18 Plate-shaped stator core element punching target, T 3-1 ， T 3-2 ， T 3-3 ， T 3-4 ， T 3-5 ， T 3-6 ， T 3-7 ， T 3-8 , T 3-9 , T 3-10 , T 3-11 , T 3-12 Plate-shaped stator core element punching target.

本願に開示される回転電機の積層鉄心製造方法は、ティース部とコアバック部とによりＴ字型に形成された板状固定子コアエレメントを軸方向に積層することによって構成された固定子コアエレメント積層ブロックを円周方向に環状に連接することによって構成された固定子コア、および環状の板状回転子コアエレメントを軸方向に積層することによって構成され前記固定子コアに囲繞された回転子コアを有する回転電機の積層鉄心製造方法であって、圧延によって形成された帯状電磁鋼板から前記板状回転子コアエレメントをプレス機構により打ち抜く工程の前に、前記帯状電磁鋼板の前記板状回転子コアエレメントを打ち抜く第１の領域より内側の第２の領域内で、前記ティース部とコアバック部とによりＴ字型に形成される板状固定子コアエレメントを、複数の打抜工程の各々の打抜工程で複数個ずつ打ち抜く製造方法であり、前記板状回転子コアエレメントに囲まれる領域から打ち抜かれる前記板状固定子コアエレメントの数は、前記帯状電磁鋼板の送給方向に対して垂直な前記板状回転子コアエレメントの中心軸上で打ち抜かれる前記板状固定子コアエレメントを除いて、前記帯状電磁鋼板の送給方向に対して垂直な板状回転子コアエレメントの中心軸の両側でそれぞれ複数であり且つ同じ数であるものである。 The method for manufacturing a laminated iron core of a rotary electric machine disclosed in the present application is a stator core element configured by axially laminating plate-shaped stator core elements formed in a T shape by a teeth portion and a core back portion. A stator core formed by connecting laminated blocks in an annular shape in the circumferential direction, and a rotor core configured by laminating an annular plate-shaped rotor core element in the axial direction and surrounded by the stator core. The plate-shaped rotor core of the strip-shaped electromagnetic steel plate before the step of punching the plate-shaped rotor core element from the strip-shaped electromagnetic steel plate formed by rolling by a pressing mechanism. In the second region inside the first region for punching the element, the plate-shaped stator core element formed in a T shape by the teeth portion and the core back portion is punched in each of the plurality of punching steps. a manufacturing method of punching in disconnect step by plurality, the number of the plate-shaped stator core elements are punched from the region surrounded by the plate-shaped rotor core element, perpendicular to the feed direction of the strip magnetic steel On both sides of the central axis of the plate-shaped rotor core element perpendicular to the feeding direction of the strip-shaped electromagnetic steel plate, except for the plate-shaped stator core element punched on the central axis of the plate-shaped rotor core element. Each is plural and the same number .

本願に開示される回転電機の積層鉄心製造方法では、ティース部とコアバック部とによりＴ字型に形成された板状固定子コアエレメントを軸方向に積層することによって構成された固定子コアエレメント積層ブロックを円周方向に環状に連接することによって構成された固定子コア、および環状の板状回転子コアエレメントを軸方向に積層することによって構成され前記固定子コアに囲繞された回転子コアを有する回転電機の積層鉄心製造方法であって、圧延によって形成された帯状電磁鋼板から前記板状回転子コアエレメントをプレス機構により打ち抜く工程の前に、前記帯状電磁鋼板の前記板状回転子コアエレメントを打ち抜く第１の領域より内側の第２の領域内で、前記ティース部とコアバック部とによりＴ字型に形成される板状固定子コアエレメントを、複数の打抜工程の各々の打抜工程で複数個ずつ打ち抜く製造方法であり、前記板状回転子コアエレメントに囲まれる領域から打ち抜かれる前記板状固定子コアエレメントの数は、前記帯状電磁鋼板の送給方向に対して垂直な前記板状回転子コアエレメントの中心軸上で打ち抜かれる前記板状固定子コアエレメントを除いて、前記帯状電磁鋼板の送給方向に対して垂直な板状回転子コアエレメントの中心軸の両側でそれぞれ複数であり且つ同じ数であるので、複数の打抜工程の各打抜工程で複数の板状固定子コアエレメントを同時に精度よく打ち抜く効率的な製造が可能となる。

In the method for manufacturing a laminated iron core of a rotary electric machine disclosed in the present application, a stator core element configured by axially laminating a plate-shaped stator core element formed in a T shape by a tooth portion and a core back portion in the axial direction. A stator core formed by connecting laminated blocks in an annular shape in the circumferential direction, and a rotor core configured by laminating an annular plate-shaped rotor core element in the axial direction and surrounded by the stator core. The plate-shaped rotor core of the strip-shaped electromagnetic steel plate before the step of punching the plate-shaped rotor core element from the strip-shaped electromagnetic steel plate formed by rolling by a pressing mechanism. In the second region inside the first region for punching the element, the plate-shaped stator core element formed in a T shape by the teeth portion and the core back portion is punched in each of the plurality of punching steps. a manufacturing method of punching in disconnect step by plurality, the number of the plate-shaped stator core elements are punched from the region surrounded by the plate-shaped rotor core element, perpendicular to the feed direction of the strip magnetic steel On both sides of the central axis of the plate-shaped rotor core element perpendicular to the feeding direction of the strip-shaped electromagnetic steel plate, except for the plate-shaped stator core element punched on the central axis of the plate-shaped rotor core element. Since there are a plurality of each and the number is the same, it is possible to efficiently manufacture a plurality of plate-shaped stator core elements at the same time with high accuracy in each punching process of the plurality of punching steps.

Claims (19)

ティース部とコアバック部とによりＴ字型に形成された板状固定子コアエレメントを軸方向に積層することによって構成された固定子コアエレメント積層ブロックを円周方向に環状に連接することによって構成された固定子コア、および環状の板状回転子コアエレメントを軸方向に積層することによって構成され前記固定子コアに囲繞された回転子コアを有する回転電機の積層鉄心製造方法であって、
圧延によって形成された帯状電磁鋼板から前記板状回転子コアエレメントをプレス機構により打ち抜く工程の前に、前記帯状電磁鋼板の前記板状回転子コアエレメントを打ち抜く第１の領域より内側の第２の領域内で、板状固定子コアエレメントを複数の打抜工程で複数個ずつ打ち抜く
ことを特徴とする回転電機の積層鉄心製造方法。 It is configured by connecting the stator core element laminated blocks formed by laminating the plate-shaped stator core elements formed in a T shape by the teeth portion and the core back portion in the axial direction in an annular shape in the circumferential direction. It is a method for manufacturing a laminated iron core of a rotary electric machine having a stator core formed by laminating a stator core and an annular plate-shaped rotor core element in the axial direction and having a rotor core surrounded by the stator core.
Before the step of punching the plate-shaped rotor core element from the strip-shaped electromagnetic steel sheet formed by rolling by a press mechanism, a second region inside the first region of punching the plate-shaped rotor core element of the strip-shaped electromagnetic steel sheet. A method for manufacturing a laminated iron core of a rotary electric machine, which comprises punching a plurality of plate-shaped stator core elements in a plurality of punching steps in a region. 請求項１に記載の回転電機の積層鉄心製造方法において、
前記板状固定子コアエレメントを前記帯状電磁鋼板から打ち抜く毎に、打ち抜かれた前記板状固定子コアエレメントを、前記帯状電磁鋼板の送給方向に対して垂直な方向に、個別の板状固定子コアエレメント蓄積室に蓄積する
ことを特徴とする回転電機の積層鉄心製造方法。 In the method for manufacturing a laminated iron core of a rotary electric machine according to claim 1,
Each time the plate-shaped stator core element is punched from the strip-shaped electromagnetic steel plate, the punched plate-shaped stator core element is individually fixed in a plate shape in a direction perpendicular to the feeding direction of the strip-shaped electromagnetic steel plate. A method for manufacturing a laminated iron core of a rotating electric machine, which is characterized by accumulating in a child core element storage chamber. 請求項１に記載の回転電機の積層鉄心製造方法において、
前記板状固定子コアエレメントを環状の前記板状回転子コアエレメントに囲まれる領域から打ち抜く場合、
前記板状回転子コアエレメントに囲まれる領域から打ち抜かれる前記板状固定子コアエレメントの数を自然数a、
前記板状固定子コアエレメントを打ち抜く工程数を自然数bとすると、
a/bが自然数でない場合、
c>a/b>dとなるような隣り合う自然数c,dとおくと、
前記板状固定子コアエレメントを打ち抜く工程で打ち抜く前記板状固定子コアエレメントの数を、前記自然数c又はdとする
ことを特徴とする回転電機の積層鉄心製造方法。 In the method for manufacturing a laminated iron core of a rotary electric machine according to claim 1,
When punching the plate-shaped stator core element from the region surrounded by the annular plate-shaped rotor core element,
The number of the plate-shaped stator core elements punched out from the area surrounded by the plate-shaped rotor core elements is a natural number a,
Assuming that the number of steps for punching the plate-shaped stator core element is a natural number b,
If a / b is not a natural number
If we set adjacent natural numbers c and d such that c> a / b> d,
A method for manufacturing a laminated iron core of a rotary electric machine, characterized in that the number of the plate-shaped stator core elements punched out in the step of punching out the plate-shaped stator core element is the natural number c or d. 請求項１に記載の回転電機の積層鉄心製造方法において、
前記板状固定子コアエレメントを環状の前記板状回転子コアエレメントに囲まれる領域から打ち抜く場合、
記板状回転子コアエレメントに囲まれる領域から打ち抜かれる前記板状固定子コアエレメントの数を自然数a、
前記板状固定子コアエレメントを打ち抜く工程数を自然数bとすると、
a/bが自然数の場合、
e=a/bとなるような自然数eとおくと、
前記板状固定子コアエレメントを打ち抜く工程で打ち抜く前記板状固定子コアエレメントの数を、前記自然数eとする
ことを特徴とする回転電機の積層鉄心製造方法。 In the method for manufacturing a laminated iron core of a rotary electric machine according to claim 1,
When punching the plate-shaped stator core element from the region surrounded by the annular plate-shaped rotor core element,
The number of the plate-shaped stator core elements punched out from the area surrounded by the plate-shaped rotor core elements is a natural number a,
Assuming that the number of steps for punching the plate-shaped stator core element is a natural number b,
If a / b is a natural number
If we set a natural number e such that e = a / b,
A method for manufacturing a laminated iron core of a rotary electric machine, wherein the number of the plate-shaped stator core elements punched in the step of punching the plate-shaped stator core element is the natural number e. 請求項１に記載の回転電機の積層鉄心製造方法において、
前記板状固定子コアエレメントを打ち抜く工程において、隣り合う前記板状固定子コアエレメントの間は、前記帯状電磁鋼板の送給方向に対して、前記帯状電磁鋼板の送給方向の前記板状固定子コアエレメントの幅以上の間隔を空ける
ことを特徴とする回転電機の積層鉄心製造方法。 In the method for manufacturing a laminated iron core of a rotary electric machine according to claim 1,
In the step of punching out the plate-shaped stator core element, the plate-shaped fixing between the adjacent plate-shaped stator core elements in the feeding direction of the strip-shaped electromagnetic steel sheet with respect to the feeding direction of the strip-shaped electromagnetic steel sheet. A method for manufacturing laminated steel cores of a rotating electric machine, which is characterized by having a space equal to or larger than the width of a child core element. 請求項１に記載の回転電機の積層鉄心製造方法において、
前記板状固定子コアエレメントを打ち抜く工程において、隣り合う前記板状固定子コアエレメントの間は、前記帯状電磁鋼板の送給方向に垂直な方向に対して、前記帯状電磁鋼板の送給方向に対して垂直な方向の前記板状固定子コアエレメントの幅以上の間隔を空ける
ことを特徴とする回転電機の積層鉄心製造方法。 In the method for manufacturing a laminated iron core of a rotary electric machine according to claim 1,
In the step of punching out the plate-shaped stator core element, between the adjacent plate-shaped stator core elements, the direction perpendicular to the feeding direction of the strip-shaped electrical steel sheet is directed to the feeding direction of the strip-shaped electrical steel sheet. A method for manufacturing a laminated iron core of a rotary electric machine, which comprises a space equal to or larger than the width of the plate-shaped stator core element in a direction perpendicular to the width of the plate-shaped stator core element. 請求項１に記載の回転電機の積層鉄心製造方法において、
前記板状回転子コアエレメントに囲まれる領域から打ち抜かれる前記板状固定子コアエレメントの数は、前記帯状電磁鋼板の送給方向に対して平行な前記板状回転子コアエレメントの中心軸上で打ち抜かれる前記板状固定子コアエレメントを除いて、前記帯状電磁鋼板の送給方向に対して平行な前記板状回転子コアエレメントの中心軸に対して対称である
ことを特徴とする回転電機の積層鉄心製造方法。 In the method for manufacturing a laminated iron core of a rotary electric machine according to claim 1,
The number of the plate-shaped stator core elements punched out from the region surrounded by the plate-shaped rotor core elements is on the central axis of the plate-shaped rotor core elements parallel to the feeding direction of the electrical steel strip. Except for the plate-shaped stator core element that is punched out, the rotary electric machine is symmetric with respect to the central axis of the plate-shaped rotor core element parallel to the feeding direction of the strip-shaped electromagnetic steel sheet. Laminated iron core manufacturing method. 請求項１に記載の回転電機の積層鉄心製造方法において、
前記板状回転子コアエレメントに囲まれる領域から打ち抜かれる前記板状固定子コアエレメントの数は、前記帯状電磁鋼板の送給方向に対して垂直な前記板状回転子コアエレメントの中心軸上で打ち抜かれる前記板状固定子コアエレメントを除いて、前記帯状電磁鋼板の送給方向に対して垂直な板状回転子コアエレメントの中心軸に対して対称である
ことを特徴とする回転電機の積層鉄心製造方法。 In the method for manufacturing a laminated iron core of a rotary electric machine according to claim 1,
The number of the plate-shaped stator core elements punched out from the region surrounded by the plate-shaped rotor core elements is on the central axis of the plate-shaped rotor core elements perpendicular to the feeding direction of the electrical steel strip. Lamination of rotary electric machines, except for the plate-shaped stator core element that is punched out, which is symmetrical with respect to the central axis of the plate-shaped rotor core element that is perpendicular to the feeding direction of the strip-shaped electromagnetic steel sheet. Iron core manufacturing method. 請求項１に記載の回転電機の積層鉄心製造方法において、
打ち抜かれる前記板状固定子コアエレメントの各々のティース部の向きが全て同一方向である
ことを特徴とする回転電機の積層鉄心製造方法。 In the method for manufacturing a laminated iron core of a rotary electric machine according to claim 1,
A method for manufacturing a laminated iron core of a rotary electric machine, characterized in that the orientations of the teeth portions of the plate-shaped stator core elements to be punched are all in the same direction. ティース部とコアバック部とによりＴ字型に形成された板状固定子コアエレメントを軸方向に積層することによって構成された固定子コアエレメント積層ブロックを円周方向に環状に連接することによって構成された固定子コア、および環状の板状回転子コアエレメントを軸方向に積層することによって構成され前記固定子コアに囲繞された回転子コアを有する回転電機の積層鉄心製造装置であって、
圧延によって形成された帯状電磁鋼板から前記板状回転子コアエレメントを打ち抜く工程の前に、前記帯状電磁鋼板の前記板状回転子コアエレメントを打ち抜く第１の領域より内側の第２の領域内で、前記板状固定子コアエレメントを複数の打抜工程で複数個ずつ打ち抜くプレス機構を備えている
ことを特徴とする回転電機の積層鉄心製造装置。 It is configured by connecting the stator core element laminated blocks formed by laminating the plate-shaped stator core elements formed in a T shape by the teeth portion and the core back portion in the axial direction in an annular shape in the circumferential direction. It is a laminated iron core manufacturing apparatus of a rotary electric machine having a stator core formed by laminating a stator core and an annular plate-shaped rotor core element in the axial direction and having a rotor core surrounded by the stator core.
Before the step of punching the plate-shaped rotor core element from the strip-shaped electromagnetic steel sheet formed by rolling, in a second region inside the first region of punching the plate-shaped rotor core element of the strip-shaped electromagnetic steel sheet. , A laminated iron core manufacturing apparatus for a rotary electric machine, characterized in that the plate-shaped stator core element is provided with a press mechanism for punching a plurality of plate-shaped stator core elements in a plurality of punching steps. 請求項１０に記載の回転電機の積層鉄心製造装置において、
前記板状固定子コアエレメントが前記帯状電磁鋼板から打ち抜かれる毎に、打ち抜かれた前記板状固定子コアエレメントを、前記帯状電磁鋼板の送給方向に対して垂直な方向に、個別に蓄積する板状固定子コアエレメント蓄積室を備えている
ことを特徴とする回転電機の積層鉄心製造装置。 In the laminated iron core manufacturing apparatus of the rotary electric machine according to claim 10.
Each time the plate-shaped stator core element is punched from the strip-shaped electromagnetic steel plate, the punched plate-shaped stator core element is individually accumulated in a direction perpendicular to the feeding direction of the strip-shaped electromagnetic steel plate. A laminated steel core manufacturing apparatus for a rotating electric machine, characterized by having a plate-shaped stator core element storage chamber. 請求項１０に記載の回転電機の積層鉄心製造装置において、
前記板状固定子コアエレメントを環状の前記板状回転子コアエレメントに囲まれる領域から打ち抜く場合、
前記板状回転子コアエレメントに囲まれる領域から打ち抜かれる前記板状固定子コアエレメントの数を自然数a、
前記板状固定子コアエレメントを打ち抜く工程数を自然数bとすると、
a/bが自然数でない場合、
c>a/b>dとなるような隣り合う自然数c,dとおくと、
前記プレス機構は、前記板状固定子コアエレメントを打ち抜く工程で打ち抜く前記板状固定子コアエレメントの数を、前記自然数c又はdとする
ことを特徴とする回転電機の積層鉄心製造装置。 In the laminated iron core manufacturing apparatus of the rotary electric machine according to claim 10.
When punching the plate-shaped stator core element from the region surrounded by the annular plate-shaped rotor core element,
The number of the plate-shaped stator core elements punched out from the area surrounded by the plate-shaped rotor core elements is a natural number a,
Assuming that the number of steps for punching the plate-shaped stator core element is a natural number b,
If a / b is not a natural number
If we set adjacent natural numbers c and d such that c> a / b> d,
The press mechanism is a laminated iron core manufacturing apparatus for a rotary electric machine, wherein the number of the plate-shaped stator core elements punched in the step of punching the plate-shaped stator core elements is a natural number c or d. 請求項１０に記載の回転電機の積層鉄心製造装置において、
前記板状固定子コアエレメントを環状の前記板状回転子コアエレメントに囲まれる領域から打ち抜く場合、
記板状回転子コアエレメントに囲まれる領域から打ち抜かれる前記板状固定子コアエレメントの数を自然数a、
前記板状固定子コアエレメントを打ち抜く工程数を自然数bとすると、
a/bが自然数の場合、
e=a/bとなるような自然数eとおくと、
前記プレス機構は、前記板状固定子コアエレメントを打ち抜く工程で打ち抜く前記板状固定子コアエレメントの数を、前記自然数eとする
ことを特徴とする回転電機の積層鉄心製造装置。 In the laminated iron core manufacturing apparatus of the rotary electric machine according to claim 10.
When punching the plate-shaped stator core element from the region surrounded by the annular plate-shaped rotor core element,
The number of the plate-shaped stator core elements punched out from the area surrounded by the plate-shaped rotor core elements is a natural number a,
Assuming that the number of steps for punching the plate-shaped stator core element is a natural number b,
If a / b is a natural number
If we set a natural number e such that e = a / b,
The press mechanism is a laminated iron core manufacturing apparatus for a rotary electric machine, characterized in that the number of the plate-shaped stator core elements punched in the step of punching out the plate-shaped stator core elements is a natural number e. 請求項１０に記載の回転電機の積層鉄心製造装置において、
前記プレス機構は、前記板状固定子コアエレメントを打ち抜く工程において、隣り合う前記板状固定子コアエレメントの間は、前記帯状電磁鋼板の送給方向に対して、前記帯状電磁鋼板の送給方向の前記板状固定子コアエレメントの幅以上の間隔を空ける
ことを特徴とする回転電機の積層鉄心製造装置。 In the laminated iron core manufacturing apparatus of the rotary electric machine according to claim 10.
In the step of punching out the plate-shaped stator core element, the press mechanism is in the feeding direction of the strip-shaped electromagnetic steel sheet with respect to the feeding direction of the strip-shaped electromagnetic steel sheet between adjacent plate-shaped stator core elements. A laminated iron core manufacturing apparatus for a rotating electric machine, which is characterized by having a space equal to or larger than the width of the plate-shaped stator core element. 請求項１０に記載の回転電機の積層鉄心製造装置において、
前記プレス機構は、前記板状固定子コアエレメントを打ち抜く工程において、隣り合う前記板状固定子コアエレメントの間は、前記帯状電磁鋼板の送給方向に垂直な方向に対して、前記帯状電磁鋼板の送給方向に対して垂直な方向の前記板状固定子コアエレメントの幅以上の間隔を空ける
ことを特徴とする回転電機の積層鉄心製造装置。 In the laminated iron core manufacturing apparatus of the rotary electric machine according to claim 10.
In the step of punching the plate-shaped stator core element, the press mechanism provides the strip-shaped electromagnetic steel sheet between adjacent plate-shaped stator core elements with respect to a direction perpendicular to the feeding direction of the strip-shaped electromagnetic steel sheet. A laminated iron core manufacturing apparatus for a rotating electric machine, characterized in that the width of the plate-shaped stator core element or more is spaced in a direction perpendicular to the feeding direction. 請求項１０に記載の回転電機の積層鉄心製造装置において、
前記プレス機構によって前記板状回転子コアエレメントに囲まれる領域から打ち抜かれる前記板状固定子コアエレメントの数は、前記帯状電磁鋼板の送給方向に対して平行な前記板状回転子コアエレメントの中心軸上で打ち抜かれる前記板状固定子コアエレメントを除いて、前記帯状電磁鋼板の送給方向に対して平行な前記板状回転子コアエレメントの中心軸に対して対称である
ことを特徴とする回転電機の積層鉄心製造装置。 In the laminated iron core manufacturing apparatus of the rotary electric machine according to claim 10.
The number of the plate-shaped stator core elements punched out from the region surrounded by the plate-shaped rotor core elements by the press mechanism is the number of the plate-shaped rotor core elements parallel to the feeding direction of the strip-shaped electromagnetic steel sheet. Except for the plate-shaped stator core element punched on the central axis, it is characterized by being symmetrical with respect to the central axis of the plate-shaped rotor core element parallel to the feeding direction of the strip-shaped electromagnetic steel sheet. Laminated iron core manufacturing equipment for rotary electric machines. 請求項１０に記載の回転電機の積層鉄心製造装置において、
前記プレス機構によって前記板状回転子コアエレメントに囲まれる領域から打ち抜かれる前記板状固定子コアエレメントの数は、前記帯状電磁鋼板の送給方向に対して垂直な前記板状回転子コアエレメントの中心軸上で打ち抜かれる前記板状固定子コアエレメントを除いて、前記帯状電磁鋼板の送給方向に対して垂直な板状回転子コアエレメントの中心軸に対して対称である
ことを特徴とする回転電機の積層鉄心製造装置。 In the laminated iron core manufacturing apparatus of the rotary electric machine according to claim 10.
The number of the plate-shaped stator core elements punched out from the region surrounded by the plate-shaped rotor core elements by the press mechanism is the number of the plate-shaped rotor core elements perpendicular to the feeding direction of the strip-shaped electromagnetic steel sheet. Except for the plate-shaped stator core element punched on the central axis, the plate-shaped rotor core element is symmetrical with respect to the central axis of the plate-shaped rotor core element perpendicular to the feeding direction of the strip-shaped electromagnetic steel sheet. Laminated iron core manufacturing equipment for rotary electric machines. 請求項１０に記載の回転電機の積層鉄心製造装置において、
前記プレス機構によって打ち抜かれる前記板状固定子コアエレメントの各々のティース部の向きが全て同一方向である
ことを特徴とする回転電機の積層鉄心製造装置。 In the laminated iron core manufacturing apparatus of the rotary electric machine according to claim 10.
A laminated iron core manufacturing apparatus for a rotary electric machine, characterized in that the orientations of the teeth portions of the plate-shaped stator core elements punched by the press mechanism are all in the same direction. 請求項１から請求項９のいずれか一項に記載の回転電機の積層鉄心製造方法によって製造された回転電機であって、
周方向に配置の前記板状固定子コアエレメントの各々の帯状電磁鋼板圧延方向の向きが全て同一方向である
ことを特徴とする回転電機。 A rotary electric machine manufactured by the method for manufacturing a laminated iron core of a rotary electric machine according to any one of claims 1 to 9.
A rotary electric machine characterized in that the directions of the rolling directions of the strip-shaped electromagnetic steel sheets of the plate-shaped stator core elements arranged in the circumferential direction are all the same.
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