JP4007208B2

JP4007208B2 - Coil insertion method and apparatus

Info

Publication number: JP4007208B2
Application number: JP2003036788A
Authority: JP
Inventors: 雅則岩本
Original assignee: Nissan Motor Co Ltd
Current assignee: Nissan Motor Co Ltd
Priority date: 2003-02-14
Filing date: 2003-02-14
Publication date: 2007-11-14
Anticipated expiration: 2023-02-14
Also published as: JP2004248434A

Description

【０００１】
【発明の属する技術分野】
この発明は、モータにおけるステータコアの内周部にて軸線方向に向けて形成したスロットにコイルを挿入するコイル挿入方法および装置に関する。
【０００２】
【従来の技術】
従来のコイル挿入方法および装置としては、例えば特許文献１に記載のものがある。
【０００３】
【特許文献１】
特開２００２−３２５４０８号公報
【０００４】
これは、図７に示すような円筒形のステータコア１の内周面に形成した複数のスロット３に、その内周側から、コイル巻治具５に巻かれているコイル７を挿入するものである。
【０００５】
コイル７は、複数のコイル巻治具５に連続して巻いてあり、このうち２つのコイル巻治具５を、ステータコア１内に挿入してある治具９にセットする。このとき、コイル巻治具５の側面と治具９との間には、コイル７が入り込む隙間１１が形成されており、この隙間１１の図７中で上部側に板状のブレード１３を挿入しておく。
【０００６】
そして、ブレード１３を隙間１１に沿って下方に移動させることで、コイル７を押し下げスロット３内に挿入する。コイル挿入後は、コイル７が外された２つのコイル巻治具５を治具９から取り外す。
【０００７】
２つのコイル７をそれぞれ対応するスロット３に挿入したら、次にコイル７を挿入するスロット３が下方位置となるようステータコア１を回転させて、コイル７が巻かれた別の２つのコイル巻治具５を、前記と同様にして治具９にセットし、ブレード１３によって２つのコイル７を挿入する。
【０００８】
以後同様にして、ステータコア１を順次回転させ、コイル７を２つずつ対応するスロット３に挿入していく。
【０００９】
【発明が解決しようとする課題】
しかしながら、上記した従来のものは、コイル巻治具５を２つずつ治具９にセットし、２つずつのコイル７を対応するスロット３に挿入する作業を繰り返して行うので、コイル挿入作業が煩雑であり、改善が望まれている。
【００１０】
そこで、この発明は、コイル挿入作業を容易なものとすることを目的としている。
【００１１】
【課題を解決するための手段】
前記目的を達成するために、この発明は、環状のステータコアの内周部に沿って複数のスロットを、軸線方向に延長して形成し、この複数のスロットにコイルを挿入するコイル挿入方法において、前記コイルを巻いたコイル巻治具を、前記ステータコアの中心軸方向から見てステータコアの中心側から外周側に向けて幅広となるテーパ形状とし、このコイル巻治具を保持させる巻治具保持具を、ステータコアの中心側から外周側に向けて放射状に延びかつ互いに隣接する前記コイル巻治具相互間に位置する複数の仕切兼保持板を備える構成とし、前記コイル巻治具を、前記ステータコア内に挿入した前記巻治具保持具に保持させた状態で前記ステータコアの内周部に沿って複数セットし、前記複数のコイル巻治具の内側に、前記軸線方向に沿ってプッシャユニットを挿入することで、このプッシャユニットの外周部に円周方向に沿って設けた複数のコイル押圧部が、互いに隣接する前記コイル巻治具相互間に進入しつつ前記複数のコイルをそれぞれ押圧して前記スロット内に挿入するコイル挿入方法としてある。
【００１２】
【発明の効果】
この発明によれば、ステータコア内に挿入した巻治具保持具の仕切兼保持板相互間に保持させつつ、ステータコアの内周部に沿って複数セットしたテーパ形状のコイル巻治具の内側に、軸線方向に沿ってプッシャユニットを挿入することで、このプッシャユニットの外周部に設けた複数のコイル押圧部によって複数のコイルを同時に押圧してスロット内に挿入するので、複数のコイルを一括して挿入することができ、コイル挿入作業が容易なものとなる。
【００１３】
【発明の実施の形態】
以下、この発明の実施の形態を図面に基づき説明する。
【００１４】
図１は、この発明の第１の実施形態に係わるコイル挿入装置を示す分解斜視図である。ここでのステータコア１５は、例えば３相モータに使用するものであり、前記図７に示した従来のものと同様に、内周面に沿って複数のスロット１７を、中心軸線方向に延長して形成してある。
【００１５】
上記したステータコア１５は、図示していないが、コイル挿入装置のベース部に支持ブラケットを介して軸線方向が水平となる状態で固定してあり、このステータコア１５の内周面に沿って、コイル１９がそれぞれ巻かれた複数（ここでは１２個）のコイル巻治具２１をセットする。
【００１６】
上記１２個のコイル巻治具２１に巻かれたそれぞれのコイル１９は、３相分のコイルのうちの１相分に相当し、これら各コイル１９は、コイル用巻線を連続して巻いたものであり、コイル１９相互間が渡り線によって繋がっている。
【００１７】
また、この１２個のコイル巻治具２１は、コイル１９がそれぞれ巻かれた状態で、図２に斜視図として示す、ステータコア１５内に挿入した状態の巻治具保持具２３に保持させる。
【００１８】
巻治具保持具２３は、コイル挿入装置の前記したベース部上に、ステータコア１５に対しその軸線方向に沿って接近離反移動可能となるように、ガイドレール２５に沿って移動可能である。すなわち、ガイドレール２５に対し底板２７が移動可能であり、底板２７上に立設された支持板２９に、環状の支持部材３１を介して、複数（ここでは１２枚）の仕切兼保持板３３を設けてある。
【００１９】
複数の仕切兼保持板３３は、支持部材３１の外周部に、長手方向の一端側の内周部を固定するとともに、ステータコア１５内に挿入した状態でステータコア１５の中心側から外周側に向けて放射状となるよう円周方向に沿って配置される。この巻治具保持具２３を、ステータコア１５に接近させて、図１に示すように、仕切兼保持板３３の支持部材３１が存在しない部分を、ステータコア１５内に挿入する。
【００２０】
ここで、上記した互いに隣接する複数の仕切兼保持板３３相互間の空間は、ステータコア１５の中心軸方向から見て内周側が狭く外周側が広くなる形状を呈しており、前記したコイル巻治具２１は、この形状の空間に挿入できるように、ステータコア１５の中心軸方向から見てステータコア１５の中心側から外周側に向けて幅広となるテーパ形状を呈している。
【００２１】
図３は、ステータコア１５内に挿入した仕切兼保持板３３相互間の空間に、コイル巻治具２１をセットした状態を示す軸線方向から見た図で、コイル巻治具２１と、巻治具保持具２３の仕切兼保持板３３との間には、隙間３５が形成される。そして、この隙間３５の内周側端部のコイル１９が存在しない部分には、板状のブレード３７を挿入する。
【００２２】
上記したブレード３７の厚さは、隙間３５の間隔とほぼ同程度で、かつ隙間３５内を移動可能となるような寸法に設定してある。このブレード３７を、コイル巻治具２１と仕切兼保持板３３との間に挿入して保持させた状態で、図１に示すプッシャユニット３９を、環状に配置してある複数のコイル巻治具２１内に挿入して複数のコイル１９を、スロット１７に一括して挿入する。
【００２３】
プッシャユニット３９は、円筒部４１と、その周囲に軸線方向に沿って延びる板状のコイル押圧部としての複数の押圧フィン４３とを備えている。押圧フィン４３は、円周方向に沿って前記した隙間３５に対応して設定してある。
【００２４】
また、この押圧フィン４３は、挿入方向前方側の傾斜部としての押し込み部４３ａと、押し込み部４３ａより後方側の押さえ部４３ｂとを備える。押し込み部４３ａは、先端側ほどステータコア１５の中心側となるよう傾斜している。一方、押さえ部４３ｂは、ステータコア１５の中心軸方向と平行であり、ステータコア１５に挿入した状態でステータコア１５の内周面とほぼ一致する位置となるよう形成してある。
【００２５】
次に、上記した第１の実施形態によるコイル挿入装置を用いたコイル挿入方法について説明する。まず、図２に示す巻治具保持具２３の複数の仕切兼保持板３３をステータコア１５内に挿入し、この状態で互いに隣接する仕切兼保持板３３相互間の空間に、コイル１９を巻いてあるコイル巻治具２１をセットする。
【００２６】
この状態で、図３に示すように、コイル巻治具２１と仕切兼保持板３３との間の内周側端部に、ブレード３７を挿入して保持させ、これにより隙間３５を形成する。
【００２７】
そして、プッシャユニット３９を、その複数の押圧フィン４３が各ブレード３７にそれぞれ対応する位置で、ステータコア１５内に挿入すると、押圧フィン４３の先端側の傾斜している押し込み部４３ａが、ブレード３７の内周側に接触し、ブレード３７を隙間３５内を外周側に向けて徐々に移動させる。
【００２８】
このブレード３７の移動によりコイル１９が押され、最終的には押圧フィン４３の押さえ部４３ｂがステータコア１５内に挿入完了した時点で、１相分の各コイル１９は、それぞれ対応するスロット１７に同時に一括して挿入されることになる。
【００２９】
挿入完了後は、プッシャユニット３９をステータコイル１５内から引き抜くとともに、ブレード３７も引き抜き、コイル１９が外された１２個のコイル巻治具２１も、ステータコア１５の内周面と仕切兼保持板３３との間の空間から取り外す。
【００３０】
以後、他の２相分のコイルについては、スロット１７が対応するコイルの挿入位置となるよう、ステータコア１５を所定角度回転させるか、あるいは巻治具保持具２３の仕切兼保持板３３側を所定角度回転させた状態で、上記と同様にして１相分の複数のコイルを同時に一括して挿入する。
【００３１】
３相分のコイル１９をすべて対応するスロット１７に挿入したら、巻治具保持具２３をステータコイル１５内から離反移動させる。
【００３２】
このように、上記した第１の実施形態によれば、１相分の複数のコイル１９をプッシャユニット３９の挿入によって一度の作業で行えるので、コイル挿入作業が容易なものとなる。また、コイル挿入時に、ブレード３７を使用することで、プッシャユニット３９によってコイル１９を直接押圧して挿入する場合に比べ、コイル１９の傷つきを抑えることができる。
【００３３】
図４および図５は、この発明の第２の実施形態を示す。この実施形態は、前記第１の実施形態における図２に示した巻治具保持具２３を兼用する。ここでのコイル巻治具４５は、図４に示すように環状部材４７の外周に、円周方向に沿って所定間隔を置いて着脱可能に取り付ける。この環状部材４７の外周には係合突起４７ａを軸線方向に沿って延長して設けてあり、一方コイル巻治具４５の内周には係合突起４７ａが係合する係合溝４５ａを設け、これによりコイル巻治具４５を環状部材４７に対して軸線方向にスライドさせることで取り付ける。
【００３４】
ここで、環状部材４７の軸線方向の幅寸法は、コイル巻治具４５の同幅寸法のほぼ半分としてある。図４では環状部材４７の一方の端面に各コイル巻治具４５の一方の端面を合わせた状態であり、したがってこのとき、コイル巻治具４５の他方側のほぼ半分の内側には環状部材４７が存在しない。
【００３５】
さらに、上記した環状部材４７と、１２個のコイル巻治具４５とを一体化させたものに、互いに隣接するコイル巻治具４５相互間を隔てる仕切部材としての隔壁板４９を備えた仕切具５１を装着する。この仕切具５１は、環状部材４７とほぼ同形状の環状支持部５３を備えており、この環状支持部材５３の外周に上記した隔壁板４９を備えている。
【００３６】
上記した環状支持部材５３は、少なくともその外径が環状部材４７と同等であり、仕切具５１を、環状部材４７と１２個のコイル巻治具４５とを一体化させたものに取り付ける際に、１２個のコイル巻治具４５の内側に位置する。また、このとき隔壁板４９は、互いに隣接するコイル巻治具４５相互間の中央に位置する。
【００３７】
隔壁板４９をコイル巻治具４５相互間に位置させたときには、隔壁板４９とコイル巻治具４５との間に、図５に示すように隙間５５が形成される。
【００３８】
上記した環状部材４７，１２個のコイル巻治具４５および仕切具５１の３つの部材を一体化したものを円形治具５７とし、この円形治具５７におけるコイル巻治具４５に対し、コイルセット治具５９によりコイル１９をセットする。
【００３９】
コイルセット治具５９は、巻線モータ６１と、巻線モータ６１によって回転するコイル巻枠６３と、コイル巻枠６３に巻き付けたコイル１９すなわち環状に形成したコイル１９を、前記した隙間５５に押し込む一対の押し込み爪６５をそれぞれ備える。
【００４０】
円形治具５７は、図示しない円形治具保持具に回転可能に保持し、コイル１９をセットする隙間５５にコイル１９が位置する状態で、位置決め固定する。
【００４１】
次に、上記した第２の実施形態によるコイル挿入装置を用いたコイル挿入方法について説明する。まず、コイル１９をコイル巻治具４５にセットするときには、環状部材４７，１２個のコイル巻治具４５および仕切部材５１の３つの部材を一体化して円形治具５７として組み立て、この円形治具５７を図示しない円形治具保持具に回転可能に保持させる。
【００４２】
そして、円形治具５７における１２個のうちの一つのコイル巻治具４５が、図５に示すように、コイルセット治具５９のコイル巻枠６３に対向する位置となるよう円形治具５７を回転させて位置決め固定する。一方このとき、コイル巻枠６３は、巻線モータ６１の駆動により回転してコイル１９が巻かれた状態とする。
【００４３】
この状態で、一対の押し込み爪６５を円形治具５７に向けて接近させることで、その先端がコイル１９に接触して押し下げ、コイル１９を隙間５５内に挿入する。コイル１９を隙間５５内に挿入することで、コイル１９は、コイル巻治具４５に巻かれた状態となる。このとき挿入するコイル１９は、互いに隣接するコイル巻治具４５相互間に隔壁板４９が挿入してあるので、既に巻終えてある隣接するコイル１９に接触することがなく、隔壁板４９にガイドされてスムーズに挿入作業が行える。
【００４４】
一つのコイル巻治具４５にコイル１９をセットしたら、円形治具５７を、次にコイル１９をセットする隣接するコイル巻治具４５に対向する位置となるよう所定角度回転させるとともに、コイル１９が外されたコイル巻枠６３に、巻線モータ６１を再度駆動して巻き付ける。
【００４５】
このようにして、複数のコイル巻治具４５にコイル１９を順次セットし、１２個のコイル巻治具４５のすべてにコイル１９をセットし終えたら、円形治具５７を、図示しない円形治具保持具から取り外す。その後、同じ相となるコイル１９同士の結線を行う。
【００４６】
次に、上記した円形治具５７から、仕切部材５１を取り外し、前記図４に示す状態の環状部材４７と１２個のコイル巻治具４５とが一体化したものを、前記図２に示した第１の実施形態で使用した巻治具保持具２３が挿入されているステータコア１５内に挿入する。この挿入時でのコイル巻治具４５と巻治具保持具２３の仕切謙保持板３３との位置関係は、前記図３に示した第１の実施形態でのコイル巻治具２１と仕切謙保持板３３との位置関係と同様である。
【００４７】
つまり、コイル巻治具４５と巻治具保持具２３の仕切兼受け板３３との間には、図３における隙間３５と同様の隙間が、ブレード３７の挿入によって形成される。
【００４８】
この状態（ブレード３７は未挿入の状態）で、環状部材４７を１２個のコイル巻治具４５から取り外すと、各コイル巻治具４５はその両側の仕切兼保持板３３とステータコア１５の内周面との間に保持される。
【００４９】
そして、前記したブレード３７を、第１の実施形態と同様にして、コイル巻治具４５と仕切兼保持板３３との間の隙間における内周側端部のコイル１９が巻かれていない部分に板状のブレード３７を挿入する。
【００５０】
その後、第１の実施形態と同様にして、プッシャユニット３９を、その複数の押圧フィン４１が各ブレード３７に対応する位置で、ステータコア１５内に挿入することで、１相分の各コイル１９を、それぞれ対応するスロット１７に同時に一括して挿入する。
【００５１】
挿入完了後は、プッシャユニット３９をステータコイル１５内から引き抜くとともに、ブレード３７も引き抜き、コイル１９が外された１２個のコイル巻治具４５も、ステータコア１５と巻治具保持具２３の隔壁板３３との間から取り外す。
【００５２】
以後、他の２相分のコイルについては、第１の実施形態と同様に、スロット１７が対応するコイルの挿入位置となるよう、ステータコア１５を適宜回転させるか、あるいは巻治具保持具２３の仕切兼保持板３３側を所定角度回転させた状態で、上記と同様にして１相分の複数のコイルを同時に一括して挿入する。
【００５３】
３相分のコイル１９をすべて対応するスロット１７に挿入したら、巻治具保持具２３をステータコイル１５内から離反移動させる。
【００５４】
このように、上記した第２の実施形態においても、１相分の複数のコイル１９をプッシャユニット３９の挿入によって一度の作業で行えるので、コイル挿入作業が容易なものとなるなど、第１の実施形態と同様の効果が得られる。
【００５５】
図６は、図示しない巻線リールからコイル用巻線６９を繰り出して、前記第１の実施形態で使用した複数のコイル巻治具２１に、１相分のコイル１９を連続して巻き付ける装置の要部を示している。
【００５６】
１相分のコイル１９を巻き付ける複数のコイル巻治具２１は、図中で左右方向に延長される回転支持軸７１が挿入されて固定され、図示しないモータによって回転支持軸７１とともに回転する。
【００５７】
一方、図示しない巻線リールから、矢印Ａで示す方向に繰り出されるコイル用巻線６９は、第１のガイド部７３とその前方の第２のガイド部７５を備えた巻線送り機構を経てコイル巻治具２１に送られる。そして、これら各ガイド部７３，７５を備えた巻線送り機構は、コイル巻治具２１の回転に伴ってコイル巻治具２１の配列方向すなわち図６中で右方向に沿って移動する。
【００５８】
上記した第１のガイド部７３は、巻線送り機構の図示しない移動体上に固定されてコイル用巻線６９を単に前方へ送る際にガイドするものである。一方、第２のガイド部７５は、コイル用巻線６９の図６中で左側にて回転支持軸７７を介して上記した移動体に対して回転可能となっており、そのガイド溝７５ａにコイル用巻線６９がガイドされる。
【００５９】
上記した巻線送り機構によれば、一つのコイル巻治具２１へコイル用巻線６９を巻き付け終えて、次のコイル巻治具２１にコイル用巻線６９を巻き付ける際には、第１，第２の各ガイド部７３，７５を備えた巻線送り機構を、その図示しない上記移動体とともに図６中で右方向へ移動させる。このとき第２のガイド部７５が２点鎖線位置から実線位置となるよう回転支持軸７７を中心として回転する。
【００６０】
これにより、上記した巻線送り機構は、第２のガイド部７５が回転しないものに比べ、第２のガイド部７５でのコイル用巻線６９の屈曲角度が小さくなり、コイル用巻線６９の変形および傷の発生を防止することができる。
【図面の簡単な説明】
【図１】この発明の第１の実施形態に係わるコイル挿入装置を示す分解斜視図である。
【図２】第１の実施形態で使用する巻治具保持具の斜視図である。
【図３】第１の実施形態によるステータコアに挿入した仕切謙保持板相互間の空間にコイル巻治具をセットした状態を示す軸線方向から見た説明図である。
【図４】この発明の第２の実施形態を示すコイル挿入装置に使用する円形治具の一部を分解した斜視図である。
【図５】第２の実施形態におけるコイル巻治具にコイルをセットする作業を示す説明図である。
【図６】巻線リールから巻線を繰り出して、第１の実施形態で使用したコイル巻治具に、１相分のコイルを連続して巻き付ける装置の概略図である。
【図７】従来例に係わるコイル挿入装置を示す説明図である。
【符号の説明】
１５ステータコア
１７スロット
１９コイル
２１，４５コイル巻治具
２３巻治具保持具
３３仕切謙保持板
３７ブレード
３９プッシャユニット
４３押圧フィン（コイル押圧部）
４３ａ押し込み部（傾斜部）
４７環状部材
４９隔壁板（仕切部材）[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a coil insertion method and apparatus for inserting a coil into a slot formed in an axial direction at an inner peripheral portion of a stator core in a motor.
[0002]
[Prior art]
As a conventional coil insertion method and apparatus, there is one described in Patent Document 1, for example.
[0003]
[Patent Document 1]
Japanese Patent Laid-Open No. 2002-325408
This is to insert the coil 7 wound around the coil winding jig 5 into the plurality of slots 3 formed on the inner peripheral surface of the cylindrical stator core 1 as shown in FIG. is there.
[0005]
The coil 7 is continuously wound around a plurality of coil winding jigs 5, and two of these coil winding jigs 5 are set on a jig 9 inserted in the stator core 1. At this time, a gap 11 into which the coil 7 enters is formed between the side surface of the coil winding jig 5 and the jig 9, and a plate-like blade 13 is inserted above the gap 11 in FIG. 7. Keep it.
[0006]
Then, the coil 7 is pushed down and inserted into the slot 3 by moving the blade 13 downward along the gap 11. After inserting the coil, the two coil winding jigs 5 from which the coil 7 has been removed are removed from the jig 9.
[0007]
After the two coils 7 are inserted into the corresponding slots 3, the stator core 1 is rotated so that the slot 3 into which the coil 7 is inserted is located at the lower position, and another two coil winding jigs around which the coil 7 is wound. 5 is set on the jig 9 in the same manner as described above, and the two coils 7 are inserted by the blade 13.
[0008]
Thereafter, similarly, the stator core 1 is sequentially rotated, and the coils 7 are inserted into the corresponding slots 3 two by two.
[0009]
[Problems to be solved by the invention]
However, in the above-described conventional apparatus, the coil winding jig 5 is set on the jig 9 two by two, and the operation of inserting the two coils 7 into the corresponding slots 3 is repeatedly performed. It is cumbersome and improvement is desired.
[0010]
Accordingly, an object of the present invention is to facilitate coil insertion work.
[0011]
[Means for Solving the Problems]
In order to achieve the above object, the present invention provides a coil insertion method in which a plurality of slots are formed extending in the axial direction along an inner periphery of an annular stator core, and a coil is inserted into the plurality of slots. A winding jig holding tool for holding the coil winding jig , wherein the coil winding jig around which the coil is wound has a taper shape that is widened from the center side of the stator core toward the outer peripheral side when viewed from the central axis direction of the stator core. Is configured to include a plurality of partitioning and holding plates that extend radially from the center side to the outer peripheral side of the stator core and are positioned between the coil winding jigs adjacent to each other, and the coil winding jig is disposed inside the stator core. a plurality of sets along the inner peripheral portion of the stator core in a state of being held in the inserted the winding jig holder, the inside of the plurality of coil winding jig, along the axial direction By inserting the pusher unit, the plurality of coil pressing portions provided along the circumferential direction on the outer peripheral portion of the pusher unit are inserted between the coil winding jigs adjacent to each other, and the plurality of coils are inserted. It is a coil insertion method in which each is pressed and inserted into the slot.
[0012]
【The invention's effect】
According to this invention, while holding between the partition and holding plates of the winding jig holder inserted in the stator core, inside the tapered coil winding jig set in plural along the inner peripheral portion of the stator core, By inserting the pusher unit along the axial direction, a plurality of coils are simultaneously pressed by a plurality of coil pressing portions provided on the outer periphery of the pusher unit and inserted into the slot. The coil can be inserted, and the coil insertion work becomes easy.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
[0014]
FIG. 1 is an exploded perspective view showing a coil insertion apparatus according to a first embodiment of the present invention. Here, the stator core 15 is used, for example, in a three-phase motor. Like the conventional one shown in FIG. 7, the plurality of slots 17 are extended along the inner peripheral surface in the direction of the central axis. It is formed.
[0015]
Although not shown, the stator core 15 is fixed to the base portion of the coil insertion device in a state where the axial direction is horizontal via a support bracket, and the coil 19 extends along the inner peripheral surface of the stator core 15. A plurality of (here, 12) coil winding jigs 21 are set.
[0016]
Each of the coils 19 wound around the twelve coil winding jigs 21 corresponds to one of the three-phase coils, and each of the coils 19 is formed by continuously winding a coil winding. The coils 19 are connected by a crossover.
[0017]
Further, the twelve coil winding jigs 21 are held by the winding jig holder 23 in a state inserted in the stator core 15 shown as a perspective view in FIG.
[0018]
The winding jig holder 23 is movable along the guide rail 25 so as to be movable toward and away from the stator core 15 along the axial direction on the base portion of the coil insertion device. That is, the bottom plate 27 is movable with respect to the guide rail 25, and a plurality of (here, twelve) partitioning and holding plates 33 are provided on a support plate 29 erected on the bottom plate 27 via an annular support member 31. Is provided.
[0019]
The plurality of partitioning and holding plates 33 fix the inner peripheral portion on one end side in the longitudinal direction to the outer peripheral portion of the support member 31 and are inserted into the stator core 15 from the center side of the stator core 15 toward the outer peripheral side. It arrange | positions along the circumferential direction so that it may become radial. The winding jig holder 23 is brought close to the stator core 15, and the portion of the partition / holding plate 33 where the support member 31 does not exist is inserted into the stator core 15 as shown in FIG. 1.
[0020]
Here, the space between the plurality of partitioning and holding plates 33 adjacent to each other has a shape in which the inner peripheral side is narrow and the outer peripheral side is wide when viewed from the central axis direction of the stator core 15. 21 has a taper shape that becomes wider from the center side of the stator core 15 toward the outer peripheral side when viewed from the central axis direction of the stator core 15 so that it can be inserted into the space of this shape.
[0021]
FIG. 3 is a view seen from the axial direction showing a state in which the coil winding jig 21 is set in the space between the partition and holding plate 33 inserted into the stator core 15, and shows the coil winding jig 21 and the winding jig. A gap 35 is formed between the holder 23 and the partition / holding plate 33. Then, a plate-like blade 37 is inserted into a portion where the coil 19 does not exist at the inner peripheral side end of the gap 35.
[0022]
The thickness of the blade 37 described above is set to a dimension that is approximately the same as the gap 35 and that can move in the gap 35. In a state where the blade 37 is inserted and held between the coil winding jig 21 and the partitioning / holding plate 33, a plurality of coil winding jigs in which the pusher unit 39 shown in FIG. A plurality of coils 19 are inserted into the slot 17 in a lump.
[0023]
The pusher unit 39 includes a cylindrical portion 41 and a plurality of pressing fins 43 as plate-like coil pressing portions extending along the axial direction around the cylindrical portion 41. The pressing fins 43 are set corresponding to the gaps 35 described above along the circumferential direction.
[0024]
The pressing fin 43 includes a pushing portion 43a as an inclined portion on the front side in the insertion direction, and a pressing portion 43b on the rear side from the pushing portion 43a. The pushing portion 43a is inclined so as to be closer to the center side of the stator core 15 toward the tip side. On the other hand, the pressing portion 43 b is formed so as to be parallel to the central axis direction of the stator core 15 and to be positioned substantially coincident with the inner peripheral surface of the stator core 15 when inserted into the stator core 15.
[0025]
Next, a coil insertion method using the coil insertion device according to the first embodiment will be described. First, the plurality of partition / holding plates 33 of the winding jig holder 23 shown in FIG. 2 are inserted into the stator core 15, and the coil 19 is wound in the space between the partition / holding plates 33 adjacent to each other in this state. A certain coil winding jig 21 is set.
[0026]
In this state, as shown in FIG. 3, the blade 37 is inserted and held at the inner peripheral end between the coil winding jig 21 and the partition / holding plate 33, thereby forming a gap 35.
[0027]
When the pusher unit 39 is inserted into the stator core 15 at positions where the plurality of pressing fins 43 respectively correspond to the blades 37, the inclined pressing portions 43 a on the tip side of the pressing fins 43 are The blade 37 is brought into contact with the inner peripheral side, and the blade 37 is gradually moved in the gap 35 toward the outer peripheral side.
[0028]
The coil 19 is pushed by the movement of the blade 37, and finally, when the pressing portion 43 b of the pressing fin 43 is completely inserted into the stator core 15, each coil 19 for one phase is simultaneously inserted into the corresponding slot 17. It will be inserted all at once.
[0029]
After the insertion is completed, the pusher unit 39 is pulled out from the stator coil 15, the blade 37 is also pulled out, and the twelve coil winding jigs 21 from which the coil 19 is removed are also connected to the inner peripheral surface of the stator core 15 and the partition / holding plate 33. Remove from the space between.
[0030]
Thereafter, with respect to the other two-phase coils, the stator core 15 is rotated by a predetermined angle or the partitioning / holding plate 33 side of the winding jig holder 23 is predetermined so that the slot 17 becomes the insertion position of the corresponding coil. With the angle rotated, a plurality of coils for one phase are simultaneously inserted in the same manner as described above.
[0031]
When all the three-phase coils 19 are inserted into the corresponding slots 17, the winding jig holder 23 is moved away from the stator coil 15.
[0032]
As described above, according to the first embodiment described above, since the plurality of coils 19 for one phase can be performed in one operation by inserting the pusher unit 39, the coil insertion operation is facilitated. Further, by using the blade 37 when inserting the coil, damage to the coil 19 can be suppressed as compared with the case where the coil 19 is directly pressed and inserted by the pusher unit 39.
[0033]
4 and 5 show a second embodiment of the present invention. This embodiment also serves as the winding jig holder 23 shown in FIG. 2 in the first embodiment. The coil winding jig 45 here is detachably attached to the outer periphery of the annular member 47 at a predetermined interval along the circumferential direction as shown in FIG. An engagement protrusion 47a is provided on the outer periphery of the annular member 47 so as to extend along the axial direction. On the other hand, an engagement groove 45a for engaging the engagement protrusion 47a is provided on the inner periphery of the coil winding jig 45. Thus, the coil winding jig 45 is attached to the annular member 47 by sliding in the axial direction.
[0034]
Here, the width dimension of the annular member 47 in the axial direction is approximately half of the same width dimension of the coil winding jig 45. In FIG. 4, one end face of each coil winding jig 45 is aligned with one end face of the annular member 47, and therefore, at this time, the annular member 47 is placed inside the other half of the coil winding jig 45. Does not exist.
[0035]
Further, a divider provided with the above-described annular member 47 and twelve coil winding jigs 45 integrated with a partition plate 49 as a partition member that separates the coil winding jigs 45 adjacent to each other. 51 is installed. The partition 51 includes an annular support portion 53 having substantially the same shape as the annular member 47, and the partition plate 49 described above is provided on the outer periphery of the annular support member 53.
[0036]
The annular support member 53 described above has at least an outer diameter equivalent to that of the annular member 47, and when the partition 51 is attached to an integrated member of the annular member 47 and the 12 coil winding jigs 45, It is located inside twelve coil winding jigs 45. At this time, the partition plate 49 is positioned at the center between the coil winding jigs 45 adjacent to each other.
[0037]
When the partition plate 49 is positioned between the coil winding jigs 45, a gap 55 is formed between the partition plate 49 and the coil winding jig 45 as shown in FIG.
[0038]
A circular jig 57 is formed by integrating the annular member 47, the 12 coil winding jigs 45, and the three members 51, and a coil set for the coil winding jig 45 in the circular jig 57. The coil 19 is set by the jig 59.
[0039]
The coil setting jig 59 pushes the winding motor 61, the coil winding frame 63 rotated by the winding motor 61, and the coil 19 wound around the coil winding frame 63, that is, the annularly formed coil 19, into the gap 55 described above. A pair of pushing claws 65 is provided.
[0040]
The circular jig 57 is rotatably held by a circular jig holder (not shown), and is positioned and fixed in a state where the coil 19 is positioned in the gap 55 in which the coil 19 is set.
[0041]
Next, a coil insertion method using the coil insertion device according to the second embodiment will be described. First, when setting the coil 19 on the coil winding jig 45, the annular member 47, the three coil winding jigs 45 and the partition member 51 are integrated into a circular jig 57, and this circular jig is assembled. 57 is rotatably held by a circular jig holder (not shown).
[0042]
Then, the circular jig 57 is placed so that one of the 12 coil winding jigs 45 in the circular jig 57 faces the coil winding frame 63 of the coil setting jig 59 as shown in FIG. Rotate to fix positioning. On the other hand, at this time, the coil winding frame 63 is rotated by driving the winding motor 61 so that the coil 19 is wound.
[0043]
In this state, by bringing the pair of pushing claws 65 closer toward the circular jig 57, the tips of the pushing claws 65 come into contact with the coil 19 and are pushed down, and the coil 19 is inserted into the gap 55. By inserting the coil 19 into the gap 55, the coil 19 is wound around the coil winding jig 45. At this time, the coil 19 to be inserted has the partition plate 49 inserted between the coil winding jigs 45 adjacent to each other. Therefore, the coil 19 is not in contact with the adjacent coil 19 that has already been wound. And can be inserted smoothly.
[0044]
When the coil 19 is set on one coil winding jig 45, the circular jig 57 is rotated by a predetermined angle so as to face the adjacent coil winding jig 45 on which the coil 19 is set next. The winding motor 61 is driven again and wound around the removed coil winding frame 63.
[0045]
In this way, when the coils 19 are sequentially set on the plurality of coil winding jigs 45 and the coils 19 are set on all the 12 coil winding jigs 45, the circular jig 57 is replaced with a circular jig (not shown). Remove from the retainer. Thereafter, the coils 19 having the same phase are connected to each other.
[0046]
Next, the partition member 51 is removed from the circular jig 57 and the annular member 47 and the 12 coil winding jigs 45 in the state shown in FIG. 4 are integrated as shown in FIG. The winding jig holder 23 used in the first embodiment is inserted into the stator core 15 in which it is inserted. The positional relationship between the coil winding jig 45 and the partition holding plate 33 of the winding jig holder 23 at the time of insertion is the same as that of the coil winding jig 21 and the partition bracket in the first embodiment shown in FIG. The positional relationship with the holding plate 33 is the same.
[0047]
That is, a gap similar to the gap 35 in FIG. 3 is formed by inserting the blade 37 between the coil winding jig 45 and the partitioning / receiving plate 33 of the winding jig holder 23.
[0048]
When the annular member 47 is removed from the twelve coil winding jigs 45 in this state (the blade 37 is not inserted), each coil winding jig 45 is connected to the partition / holding plate 33 on both sides and the inner periphery of the stator core 15. Held between the surfaces.
[0049]
Then, in the same manner as in the first embodiment, the above-described blade 37 is applied to a portion where the coil 19 at the inner peripheral side end in the gap between the coil winding jig 45 and the partition / holding plate 33 is not wound. A plate-like blade 37 is inserted.
[0050]
Thereafter, in the same manner as in the first embodiment, the pusher unit 39 is inserted into the stator core 15 at a position where the plurality of pressing fins 41 correspond to the blades 37, so that each coil 19 for one phase is inserted. , Are simultaneously inserted into the corresponding slots 17 at the same time.
[0051]
After the insertion is completed, the pusher unit 39 is pulled out from the stator coil 15, the blade 37 is also pulled out, and the twelve coil winding jigs 45 from which the coils 19 have been removed are also the partition plates of the stator core 15 and the winding jig holder 23. Remove from between 33.
[0052]
Thereafter, with respect to the other two-phase coils, as in the first embodiment, the stator core 15 is appropriately rotated so that the slot 17 becomes the insertion position of the corresponding coil, or the winding jig holder 23 With the partition / holding plate 33 side rotated by a predetermined angle, a plurality of coils for one phase are simultaneously inserted in the same manner as described above.
[0053]
When all the three-phase coils 19 are inserted into the corresponding slots 17, the winding jig holder 23 is moved away from the stator coil 15.
[0054]
As described above, also in the above-described second embodiment, since the plurality of coils 19 for one phase can be performed by a single operation by inserting the pusher unit 39, the coil insertion operation becomes easy. The same effect as the embodiment can be obtained.
[0055]
FIG. 6 shows a device for winding a coil winding 69 from a winding reel (not shown) and continuously winding a coil 19 for one phase around a plurality of coil winding jigs 21 used in the first embodiment. The main part is shown.
[0056]
A plurality of coil winding jigs 21 for winding the coil 19 for one phase are inserted and fixed with a rotation support shaft 71 extending in the left-right direction in the drawing, and are rotated together with the rotation support shaft 71 by a motor (not shown).
[0057]
On the other hand, a coil winding 69 fed out from a winding reel (not shown) in the direction indicated by arrow A passes through a winding feed mechanism including a first guide portion 73 and a second guide portion 75 in front of the first guide portion 73. It is sent to the winding jig 21. And the winding feed mechanism provided with each of these guide portions 73 and 75 moves along the arrangement direction of the coil winding jig 21, that is, the right direction in FIG. 6 as the coil winding jig 21 rotates.
[0058]
The first guide portion 73 described above is fixed on a moving body (not shown) of the winding feed mechanism and guides the coil winding 69 when it is simply fed forward. On the other hand, the second guide portion 75 is rotatable on the left side of the coil winding 69 in FIG. 6 via the rotation support shaft 77 with respect to the moving body described above, and the guide groove 75a has a coil. Winding wire 69 is guided.
[0059]
According to the winding feed mechanism described above, when winding the coil winding 69 around one coil winding jig 21 and winding the coil winding 69 around the next coil winding jig 21, The winding feed mechanism including the second guide portions 73 and 75 is moved rightward in FIG. 6 together with the moving body (not shown). At this time, the second guide portion 75 rotates about the rotation support shaft 77 so as to be in the position of the solid line from the two-dot chain line position.
[0060]
As a result, the winding feed mechanism described above has a smaller bending angle of the coil winding 69 in the second guide portion 75 than that in which the second guide portion 75 does not rotate. Deformation and scratches can be prevented.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view showing a coil insertion device according to a first embodiment of the present invention.
FIG. 2 is a perspective view of a winding jig holder used in the first embodiment.
FIG. 3 is an explanatory view seen from the axial direction showing a state in which a coil winding jig is set in a space between the partition holding plates inserted in the stator core according to the first embodiment.
FIG. 4 is an exploded perspective view of a part of a circular jig used in a coil insertion device showing a second embodiment of the present invention.
FIG. 5 is an explanatory diagram showing an operation of setting a coil on a coil winding jig in the second embodiment.
FIG. 6 is a schematic view of an apparatus for winding a winding from a winding reel and continuously winding a coil for one phase on a coil winding jig used in the first embodiment.
FIG. 7 is an explanatory view showing a coil insertion device according to a conventional example.
[Explanation of symbols]
15 Stator core 17 Slot 19 Coil 21, 45 Coil winding jig 23 Winding jig holder 33 Partition moderation holding plate 37 Blade 39 Pusher unit 43 Pressing fin (coil pressing part)
43a Pushing part (inclined part)
47 Ring member 49 Partition plate (partition member)

Claims

An annular plurality of slots along the inner periphery of the stator core, and formed to extend in the axial direction, the coil insertion method for inserting a coil into the plurality of slots, the coil winding jig wound with the coil, the A taper shape that becomes wider from the center side of the stator core toward the outer peripheral side when viewed from the center axis direction of the stator core, and a winding jig holder for holding the coil winding jig is directed from the center side of the stator core toward the outer peripheral side. A plurality of partitioning and holding plates that extend radially and are adjacent to each other are provided between the coil winding jigs, and the coil winding jigs are held by the winding jig holders inserted into the stator core. multiple sets and along the inner periphery of the stator core in a state, the inside of the plurality of coil winding jig, by inserting the pusher unit along the axial direction, A plurality of coil pressing portions provided on the outer peripheral portion of the pusher unit along the circumferential direction press the plurality of coils and insert into the slots while entering between the coil winding jigs adjacent to each other. A method for inserting a coil.

In the coil insertion method in which a plurality of slots are formed extending in the axial direction along the inner peripheral portion of the annular stator core, and a coil is inserted into the plurality of slots, the plurality of coil winding jigs are connected to the annular member. Attaching at a predetermined interval along the circumferential direction to the outer peripheral portion, and arranging a partition member between the coil winding jigs adjacent to each other, with respect to the plurality of coil winding jigs from the outer peripheral side, to a state wound pushes the coil formed annularly, remove the partition member in this state, the plurality of coil winding jig MakiOsamu member holder that is inserted into the stator core is held, the A plurality of coil winding jigs are inserted into the stator core together with the annular member, and then the annular members are detached from the plurality of coil winding jigs to hold the coil winding jigs in the winding jig holder. Along the inner periphery of the stator core in a state of being held in the immediately plurality sets, on the inside of the plurality of coil winding jig, by inserting the pusher unit along the axial direction, the outer periphery of the pusher unit A plurality of coil pressing portions provided along the circumferential direction in the portion press each of the plurality of coils while entering between the coil winding jigs adjacent to each other, and are inserted into the slots. Coil insertion method.

The coil winding jig has a tapered shape that becomes wider from the center side of the stator core toward the outer peripheral side when viewed from the central axis direction of the stator core, and the winding jig holder extends from the center side of the stator core to the outer peripheral side. 3. A coil insertion method according to claim 2, further comprising a plurality of partitioning and holding plates that extend radially toward each other and are positioned between the adjacent coil winding jigs.

When the pusher unit is inserted inside the plurality of coil winding jigs, the blades set in advance between the adjacent coil winding jigs are moved toward the outer peripheral side to press the coils to move into the slots. coil insertion process according to any one of claims 1 to 3, characterized in that inserted into.

The push coils pressing portion of Sha unit, coil insertion method according to any one of claims 1 to 4, characterized in that it comprises an inclined portion inclined so that as the distal end side at the center side of the stator core.

In the coil insertion device for forming a plurality of slots along the inner peripheral portion of the annular stator core in the axial direction and inserting a coil into the plurality of slots, the plurality of slots are set along the inner peripheral portion of the stator core. A coil winding jig, a winding jig holder for holding the coil winding jig in a state of being inserted into the stator core, and being inserted along the axial direction inside the plurality of coil winding jigs. Thus, a plurality of coil pressing portions provided on the outer peripheral portion are inserted between the coil winding jigs adjacent to each other while pressing each coil wound around each coil winding jig. and a pusher unit which includes each of the coil winding jig exhibits a tapered shape which becomes wider toward the outer peripheral side from the center side of the stator core viewed from the center axis direction of the stator core, before Winding jig holder is characterized in that it comprises a plurality of partition and the holding plate positioned between the coil winding jig mutually extending and adjacent radially toward the outer peripheral side from the center side of the stator core Coil insertion device.

In the coil insertion device for forming a plurality of slots along the inner peripheral portion of the annular stator core in the axial direction and inserting a coil into the plurality of slots, the plurality of slots are set along the inner peripheral portion of the stator core. A coil winding jig, a winding jig holder for holding the coil winding jig in a state of being inserted into the stator core, and being inserted along the axial direction inside the plurality of coil winding jigs. Thus, a plurality of coil pressing portions provided on the outer peripheral portion are inserted between the coil winding jigs adjacent to each other while pressing each coil wound around each coil winding jig. to the pusher unit comprises respectively, in setting the coil to said coil winding jig, annular portion in which a plurality of coil winding jig mounted at predetermined intervals along the circumferential direction on the outer peripheral portion When the coil insertion apparatus being characterized in that respectively a partition member disposed between said coil winding jig mutually adjacent.

The coil winding jig has a taper shape that becomes wider from the center side of the stator core toward the outer peripheral side when viewed from the central axis direction of the stator core, and the winding jig holder extends from the center side of the stator core to the outer peripheral side. The coil insertion device according to claim 7, further comprising a plurality of partitioning and holding plates that extend radially toward each other and are positioned between the adjacent coil winding jigs.

When inserting the pusher unit between the coil winding jigs adjacent to each other and inserting the pusher unit inside the plurality of coil winding jigs, the coil is pressed toward the outer side while moving in the slot. coil insertion apparatus according to any one of claims 6 to 8, characterized in that a blade to be inserted into.

The coil pressing portion of the pusher unit is a coil insertion apparatus according to any one of 6 to claim, characterized in that it comprises an inclined portion inclined so that as the distal end side at the center side of the stator core 9.