JP2004079786A

JP2004079786A - Electromagnet coil winder

Info

Publication number: JP2004079786A
Application number: JP2002238110A
Authority: JP
Inventors: Sunao Ichihara; 市原　直
Original assignee: Mitsubishi Electric Corp
Current assignee: Mitsubishi Electric Corp
Priority date: 2002-08-19
Filing date: 2002-08-19
Publication date: 2004-03-11
Anticipated expiration: 2022-08-19
Also published as: JP3664700B2

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electromagnet coil winder, wherein such a problem is solved that a moving mechanism or moving orbit for a conductor feeder is required, and the device is large-sized and costs high. <P>SOLUTION: There are provided a conductor feeder 2 for feeding a conductor 1b continuously, a coil winding core 4 for winding the conductor 1c formed in a curved shape as a coil, and a conductor forming device 3. The conductor forming device 3 has a conductor straightening mechanism 3c provided between the conductor feeder 2 and the coil winding core 4 for straightly guiding the conductor 1b fed from the conductor feeder 2 between an entrance 3ci and an exit 3co, and a conductor pressing mechanism 3d arranged on an exit side of this conductor straightening mechanism 3c for pressing the conductor straightly guided by the conductor straightening mechanism at a predetermined angle with respect to a longitudinal direction of the conductor to curve the conductor. The conductor 1c formed in a curved shape by the conductor forming device 3 is wound on the coil core 4 as a coil. <P>COPYRIGHT: (C)2004,JPO

Description

【０００１】
【発明の属する技術分野】
この発明は、導体供給装置から連続的に供給される導体を導体成形装置により押圧して湾曲形状に形成し、湾曲形状の導体をコイル巻芯に巻き取ることにより電磁石コイルを形成する電磁石コイル巻線装置に関するものである。
【０００２】
【従来の技術】
図５は例えば特開２００１−３３２４３５号に示された従来の電磁石コイル巻線装置を示す図であり、図において、１はコイル導体、１ｂは後述の導体供給装置２から供給される導体で、前記電磁石コイル１に形成されるものである。１ｃは前記導体１ｂが後述の導体成形装置３により湾曲形状に成形された導体、２は巻き取りドラム等の導体供給装置で、床上の軌道２１上を台（図示せず）を介して前記軌道２１に沿って矢印２ａの方向に走行する。
【０００３】
３は前記導体１ｂを湾曲形状に曲げ成形する導体成形装置で、３組のロール対３１，３２，３３からなり、中央のロール対３２は前記導体１ｂと直角方向（矢印３４ａで示す方向）の位置が駆動機構３４により制御される位置可動ロールであり、前記導体１ｂの曲げ半径を制御して前記導体１ｂを所定の曲げ半径の湾曲形状に曲げ成形する。また前記中央ロール対３２は回転駆動装置（図示せず）により回転駆動される。４はコイル巻芯で、前記湾曲形状に曲げ成形された導体１ｂを巻き取って前記電磁石コイル１を形成する。
【０００４】
次に動作について説明する。導体１ｂは供給ドラム等の導体供給装置２に巻かれていて、導体成形装置３へと送られる。導体成形装置３の中央のロール対３２は導体１ｂと略直角方向の位置が駆動機構３４により駆動されることにより、導体１ｂを湾曲形状に曲げ成形する。また中央ロール３２が回転駆動され（駆動機構は図示せず）導体１ｂを導体長手方向に駆動して送り出す。導体成形装置３によって曲げ成形された導体１ｃは矢印４ａの方向に回転する回転台（図示せず）上のコイル巻芯４に巻き取られて連続巻線成形され、巻線導体、即ち電磁石コイル１となる。導体成形装置３の中央ロール３２の位置駆動と回転駆動は曲げ成型装置制御盤（図示せず）により制御される。
【発明が解決しようとする課題】
【０００５】
従来の電磁石コイル巻線方法及び装置は、コイル巻線が進行するにつれ、コイル巻芯４に巻き取られた巻線導体、即ち電磁石コイル１の巻半径が次第に大きくなるとともに、導体１ｂの必要曲げ半径は次第に大きくする必要があり、導体成形装置３の中央曲げロール３２の位置を次第に変更するために中央曲げロール３２の位置を変えるのみでなく、コイル巻線が進行するに伴って、導体供給装置２上の導体１ｂの巻半径は次第に小さくなっていくので、導体供給装置２の位置は導体１ｂの長手方向に対し略直角方向（矢印２ａの方向）に移動させる必要があり、その為、導体供給装置２を導体１ｂを矢印２ａの方向に移動させるように、導体供給装置２を設置する台（図示せず）には移動駆動機構（図示せず）が備わっており、当該移動駆動機構（図示せず）によって、台（図示せず）上の導体供給装置２を、床上の軌道２１上で走行させる。従って、導体供給装置２まわりの構造が複雑で、占有面積も広大であり、高価であるという問題がある。電磁石コイル１が大型でコイル導体量も多い場合、導体供給装置２の供給ドラムは寸法がｍ単位、質量が数１０ｔｏｎ単位の大型で、数億円の設備となるなど、前記問題は特に大型巻線装置で著しい。
【０００６】
この発明は、前述のような従来の実情に鑑みてなされたもので、小型かつ安価な装置で巻線できる電磁石コイル巻線装置を実現することを目的とするものである。
【０００７】
【課題を解決するための手段】
請求項１に記載の発明に係る電磁石コイル巻線装置は、導体を連続的に供給する導体供給装置、湾曲形状に成形された前記導体をコイル状に巻き取るコイル巻芯、及び前記導体供給装置と前記コイル巻芯との間に設けられ前記導体供給装置から供給された前記導体をその入り口から出口の間で直線状にガイドする導体直線化機構とこの導体直線化機構の出口側に配設され前記導体直線化機構により直線状にガイドされた導体を該導体の長手方向と所定の角度をなして押圧して該導体を湾曲させる導体押圧機構とを有した導体成形装置を備え、前記導体成形装置により湾曲形状に成形された前記導体を前記コイル巻芯にコイル状に巻き取るものである。
【０００８】
請求項２に記載の発明に係る電磁石コイル巻線装置は、導体を連続的に供給する導体供給装置、湾曲形状に成形された前記導体をコイル状に巻き取るコイル巻芯、及び前記導体供給装置と前記コイル巻芯との間に配設されそれぞれ対をなすロールで前記導体供給装置から供給された導体を挟持する少なくとも３対のロ−ルが前記導体の長手方向に配設され入り口側の少なくとも２対のロ−ルより出口側のロ−ルにより前記導体を該導体の長手方向と所定の角度をなして押圧して湾曲させる導体成形装置を備え、前記導体成形装置により湾曲形状に成形された前記導体を前記コイル巻芯にコイル状に巻き取るものである。
【０００９】
請求項３に記載の発明に係る電磁石コイル巻線装置は、請求項１及び請求項２の何れか一に記載の電磁石コイル巻線装置において、前記押圧により前記導体に生じる反力以上の荷重をかける押し付け機構を設け、この押し付け機構により前記導体が所望の形状に湾曲されるものである。
【００１０】
請求項４に記載の発明に係る電磁石コイル巻線装置は、請求項１及び請求項２の何れか一に記載の電磁石コイル巻線装置において、前記導体を押圧して湾曲させる対を成すロ−ルの中心線を結ぶ方向と前記導体の湾曲形状の法線とのずれを検出する検出装置を設け、この検出装置によって、前記導体を押圧して湾曲させる対を成すロ−ルの中心線を結ぶ方向が前記導体の湾曲形状の法線と一致する方向に、前記導体を押圧して湾曲させる対を成すロ−ルの姿勢を制御するものである。
【００１１】
【発明の実施の形態】
実施の形態１．
以下、この発明の実施の形態１を図１及び図２に基づいて説明する。図１は電磁石コイル巻線装置の一例を示す平面図、図２は図１における要部を拡大して示す拡大平面図である。
【００１２】
図１及び図２において、１はコイル導体、１ｂは後述の導体供給装置２から供給される導体で、前記電磁石コイル１に形成されるものである。１ｃは前記導体１ｂが後述の導体成形装置３により湾曲形状に成形された導体、２は巻き取りドラム等の導体供給装置で、その位置は固定で導体１ｂを供給するための回転をする。即ち、
前述の図５に示される従来装置のような床上の軌道２１、及び導体供給装置２の位置を導体１ｂの長手方向に対し略直角方向（矢印２ａの方向）に移動させる移動駆動機構（図示せず）は設けられてない。
【００１３】
３は前記導体１ｂを湾曲形状に曲げ成形する導体成形装置で、前記導体供給装置２と後述のコイル巻芯４との間に配設されそれぞれ対をなすロールで前記導体供給装置から供給された導体を挟持する３対のロ−ル３１，３２，３３が前記導体１ｂの長手方向に配設され入り口側の２対のロ−ル３１，３２より出口側のロ−ル３３により前記導体１ｂを該導体１ｂの長手方向と所定の角度をなして押圧して湾曲させる。
【００１４】
３ａは前記導体成形装置の固定台で、電磁石コイル巻線装置或いは電磁石コイル巻線装置を設置する建物の固定部に固定されている。３ｂは前記対をなすロ−ル３１（以下、ロ−ル対３１と記す）及び前記対をなすロ−ル３２（以下、ロ−ル対３２と記す）が取り付けられた取付台で、前記固定台３ａに固定されている。３ｃは前記ロ−ル対３１，３２と前記取付台３ｂとで構成された直線化機構で、前記導体供給装置２から供給された前記導体１ｂをその入り口３ｃｉから出口３ｃｏの間で直線状にガイドする。
【００１５】
３１ａ，３１ｂは前記ロ−ル対３１を構成するロ−ルで、これらロ−ル３１ａ，３１ｂで前記導体１ｂを挟持する。３２ａ，３２ｂは前記ロ−ル対３２を構成するロ−ルで、これらロ−ル３２ａ，３２ｂで前記導体１ｂを挟持する。３３ａ，３３ｂは前記対を成す（以下、ロ−ル対３３と記す）を構成するロ−ルで、これらロ−ル３３ａ，３３ｂで前記導体１ｂを挟持する。
【００１６】
３３ａｓは前記ロ−ル３３ａの軸、３３ｃはこの軸３３ａｓの中心を中心に矢印３３ｃａで示すように揺動可能に前記固定台３ａに取り付けられた揺動台で、前記ロ−ル対３３が設置されている。３３ｄは前記固定台３ａに取り付けられた位置駆動機構で、前記ロール３３ａを前記導体１ｂの方向に駆動し、当該ロール３３ａの前記導体１ｂの方向の位置を制御する。３ｄは前記導体押圧機構で、前記ロ−ル対３３と前記揺動台３３ｃと前記駆動機構３３ｄとで構成され、前記導体直線化機構３ｃにより直線状にガイドされた導体１ｂを、図示のように該導体１ｂの長手方向と所定の角度をなして押圧し、該導体１ｂを湾曲させる。４はコイル巻芯で、前記湾曲形状に曲げ成形された導体１ｃを巻き取って前記電磁石コイル１を形成する。
【００１７】
次に動作について説明する。導体１ｂは導体供給装置２に巻かれていて、導体成形装置３へと送られる。導体１ｂは例えば入口のロール対３１の回転駆動により送られ、２対のロール対３１と３２で曲げモーメントが支持されつつ、出口側のロール対３３が導体１ｂ走行方向と略直角方向に移動することにより導体１ｂが曲げられる。湾曲形状に曲げ成形された導体１ｃが、矢印４ａの方向に回転する回転台（図示せず）上のコイル巻芯４に巻き取られて連続巻線成形され、巻線導体、即ち電磁石コイル１となる。
【００１８】
出口側のロール対３３を構成するロール３３ａ，３３ｂのうちの一方のロール３３ａは、位置駆動装置３３ｄにより導体１ｂと略直角をなす方向（矢印３３ａａの方向）に移動しこの移動により導体１ｂは湾曲形状に曲げられる。このロール３３ａの移動による導体１ｂの曲げによりロール３３ｂが従動的に位置決めされるとともに、遥動台３３ｃはロール３３ａの軸３３ａｓの中心を中心にした円弧を描くように矢印３３ｃａで示す方向の遥動回動をする。このように導体１ｂの曲げは直線化機構３ｃの出口側のロール３３ａの位置の移動によるため、曲げ成形により導体１ｂの導体成形装置３への進入角度が変ることはなく、又、導体供給装置２の導体巻径が小さくなることによる導体１ｂの導体成形装置３への進入角度の変化が前記導体押圧機構３ｄによる導体１ｂの曲げに直接影響することもない。従って、導体供給装置２の位置を変更する必要は無く、従って導体供給装置２の位置駆動機構や移動用の軌道も不用である。
【００１９】
実施の形態２．
図３はこの発明の実施の形態２の一例を要部のみ拡大平面図で示す図で、この図３に示すように、ロール３１，３２，３３の一方の側のロ−ル３１ｂ，３２ｂ，３３ｂを、押付け機構３１ｄ，３２ｄ，３３ｄにより押圧して他方の側の相手ロール３１ａ，３２ａ，３３ａに導体１ｂを押付ける構造としたものである。
【００２０】
導体成形装置３に供給される導体１ｂの断面寸法は規定範囲内の変動があり、ロール対のそれぞれの相手ロールとの間のロール間距離が固定されていると、導体１ｂが太い部分ではロール対が導体１ｂを過剰に強く挟み、導体走行抵抗が異常に増加し導体１ｂを送ることができなくなる。逆に導体１ｂが細い部分ではロールと導体１ｂ間に隙間が発生し、曲げ半径を精度よく制御できないという問題があった。この発明の実施の形態２ではこの問題点も解決しようとするものである。
【００２１】
以下、この発明の実施の形態２の動作について図３を用いて説明する。導体成形装置３内のロール対３１，３２，３３は、それぞれの一方の側のロール３１ｂ，３２ｂ，３３ｂが押付け機構３１ｄ，３２ｄ，３３ｄにより導体１ｂに押付けられ、対の相手ロール３１ａ，３２ａ，３３ａとともに太い矢印で示すように導体１ｂを積極的に挟み込む。押付け機構３１ｄ，３２ｄ，３３ｄは例えば油圧機構であり，変位でなく力を制御する機構である。導体１ｂは断面寸法の変動があっても常に一定の力でロール対３１，３２，３３により挟み込まれ、過剰な力で挟まれることも、隙間が発生することもない。図３の構成では、ロール対３２に曲げの支点反力が作用し、導体１ｂがロールから離れる方向に力が作用するので、押付け機構の発生する押付け力はこの反力以上の十分余裕のある値である必要がある。なお、反力は設計的に求められてもよく、反力測定手段で測定されてもよい。
【００２２】
このようにこの発明の実施の形態２では曲げ加工している導体１ｂの断面寸法の変動に対応して、ロール対内のロールが互いに押付けあうことにより隙間無く導体１ｂを挟み込むので、導体１ｂの断面寸法変動により導体送りが停止することもなく、精度よく曲げ加工できる。
【００２３】
実施の形態３．
図４はこの発明の実施の形態３の一例を要部のみ拡大平面図で示す図で、この図４に示すように、出口側のロール対３３の導体１ｂに対する角度（姿勢）を制御する機構を設けたものである。即ち、出口側のロール対３３の揺動台３３ｃには腕機構４１と４２を設け、各腕機構４１，４２の先端には出口側ロール対３３の各ロ−ル３３ａ，３３ｂの中心間を結ぶ方向５０の導体１ｂとの距離を測定する測長機構等の検出装置４３と４４を設けてある。これら検出装置４３と４４は、導体を押圧して湾曲させる対を成すロ−ルの中心線を結ぶ方向と導体の法線とのずれを検出するものである。４０は出口側ロール対３３を導体１ｂの曲げ半径の存在する面内に遥動回転する回転駆動機構である。
【００２４】
実施の形態３に示すロール対３３を押付ける機構３３ｄにより、出口側のロール対３３の方向は導体１ｂと略直角方向に保持されるが、導体１ｂの曲げ半径が大きい場合には、導体１ｂの表面の僅かな凹凸等の外乱による導体１ｂの接線方向力の影響、ロール対３３を押付ける機構３３ｄによりロール対３３を直角に保持する導体接線方向力より相対的に大きくなり、完全導体１ｂと直角に制御することはできない。出口側のロール対３３の向きが導体１ｂと完全に直角でないと、例えば非円形コイルの曲げ成型で、曲げの曲率半径が小さい部分から大きい部分に移行する場合の様にコイル導体の曲げにおいて曲げを浅くする方向に出口ロール位置を移動する場合に、図２の出口ロール対３３の曲げ半径の内径側ロール３３ｂに曲げの反力が作用するが，このロール３３ｂと出口ロール位置駆動機構３３ｄとの間隙間が発生するので，正確な曲げ半径制御に不都合であるという問題点があった。この発明の実施の形態３ではこの問題点も解決しようとするものである。
【００２５】
以下この発明の実施の形態３の動作について図４を用いて説明する。出口側ロール台の腕４１，４２と導体１ｂとの間の距離Ｌ１，Ｌ２は検出装置４３と４４によって測定され、測定された距離の差を無くすように出口ロール台遥動回転駆動機構４０が回転駆動する。遥動回転駆動機構４０は例えばサーボモータであり、曲げ成型制御盤（図示せず）から制御される。このようにこの発明の実施の形態３では、出口側ロール対の方向をコイル導体１ｂと直角になるように能動的に制御するので，出口側ロールとコイル導体の間に隙間ができることはない。従って非円形コイルの曲げ成形の場合も、正確な曲げを制御することが可能となる。
【００２６】
実施の形態４．
尚、前述の本発明の実施の形態１〜３では、導体成形装置３のロールが３対３１，３２，３３である場合について説明したが、４対以上でもよく、この場合は少なくとも入口側２対またはそれ以上のロールの位置が固定され、残りの出口側のロール対の位置を移動することにより導体１ｂを曲げることができる。
【００２７】
実施の形態５．
又、前述の本発明の実施の形態１〜３では、導体１ｂの曲げによる導体１ｂの反力を直線化機構３ｃのロ−ル対３２で受けるようにした場合を例示したが、直線化機構３ｃと導体押圧機構３ｄとの間に、導体１ｂの曲げによる導体１ｂの反力を受けるロ−ル等の機構を設け、直線化機構３ｃでは受けない構造にしてもよく、その場合も前述の本発明の実施の形態１〜３の効果を奏する。
【００２８】
実施の形態６．
又、前述の本発明の実施の形態１〜３では、直線化機構３ｃに２対のロ−ル３１ａ，３１ｂ，３２ａ，３２ｂを設けた場合を例示したが、ロ−ル３１ａ，３２ａ側、即ち導体１ｂの一方の側、に配置がランダムなロ−ルを複数個設け、ロ−ル３１ｂ，３２ｂ側、即ち導体１ｂの他方の側、に配置がランダムなロ−ルを複数個設け、導体１ｂの一方の側と他方の側のロ−ルが必ずしも対をなさないようにしても、また、導体１ｂの一方の側と他方の側の夫々に導体１ｂを挟持し導体１ｂを長手方向に送るベルトコンベアやキャタピラ等を配設しても、導体１ｂを直線状にガイドする直線化機能が生じるようにすればよく、その場合も前述の本発明の実施の形態１〜３の効果を奏する。
【００２９】
【発明の効果】
請求項１に記載の電磁石コイル巻線装置のは、導体を連続的に供給する導体供給装置、湾曲形状に成形された前記導体をコイル状に巻き取るコイル巻芯、及び前記導体供給装置と前記コイル巻芯との間に設けられ前記導体供給装置から供給された前記導体をその入り口から出口の間で直線状にガイドする導体直線化機構とこの導体直線化機構の出口側に配設され前記導体直線化機構により直線状にガイドされた導体を該導体の長手方向と所定の角度をなして押圧して該導体を湾曲させる導体押圧機構とを有した導体成形装置を備え、前記導体成形装置により湾曲形状に成形された前記導体を前記コイル巻芯にコイル状に巻き取るようにしたので、導体供給装置の移動機構や移動用軌道が不用となり、巻線装置が小型かつ安価なものになる効果がある。
【００３０】
請求項２に記載の電磁石コイル巻線装置のは、導体を連続的に供給する導体供給装置、湾曲形状に成形された前記導体をコイル状に巻き取るコイル巻芯、及び前記導体供給装置と前記コイル巻芯との間に配設されそれぞれ対をなすロールで前記導体供給装置から供給された導体を挟持する少なくとも３対のロ−ルが前記導体の長手方向に配設され入り口側の少なくとも２対のロ−ルより出口側のロ−ルにより前記導体を該導体の長手方向と所定の角度をなして押圧して湾曲させる導体成形装置を備え、前記導体成形装置により湾曲形状に成形された前記導体を前記コイル巻芯にコイル状に巻き取るようにしたので、導体供給装置の移動機構や移動用軌道が不用となる具体的な巻線装置を実現できる効果がある。
【００３１】
請求項３に記載の電磁石コイル巻線装置のは、請求項１及び請求項２の何れか一に記載の電磁石コイル巻線装置において、前記押圧により前記導体に生じる反力以上の荷重をかける押し付け機構を設け、この押し付け機構により前記導体が所望の形状に湾曲されるようにしたので、導体の断面寸法変動により導体送りが停止することもなく、曲げ加工を高精度にできる効果がある。
【００３２】
請求項４に記載の発明に係る電磁石コイル巻線装置は、請求項１及び請求項２の何れか一に記載の電磁石コイル巻線装置において、前記導体を押圧して湾曲させる対を成すロ−ルの中心線を結ぶ方向と前記導体の湾曲形状の法線とのずれを検出する検出装置を設け、この検出装置によって、前記導体を押圧して湾曲させる対を成すロ−ルの中心線を結ぶ方向が前記導体の湾曲形状の法線と一致する方向に、前記導体を押圧して湾曲させる対を成すロ−ルの姿勢を制御するようにしたので、非円形コイルのコイル導体曲げ精度が向上する効果がある。
【図面の簡単な説明】
【図１】この発明の実施の形態１を示す平面図である。
【図２】この発明の実施の形態１を示す図で、図１の要部を拡大して示す平面図である。
【図３】この発明の実施の形態２を示す要部拡大平面図である。
【図４】この発明の実施の形態３を示す要部拡大平面図である。
【図５】従来の電磁石コイル巻線装置を示す平面図である。
【符号の説明】
１　電磁石コイル、　　　　　　　　１ｂ，１ｃ　コイル導体、
２　導体供給装置、　　　　　　　　　３　導体成形装置、
３ｃ　導体直線化機構、　　　　　　　　３ｃｉ　　入り口、
３ｃｏ　　出口、　　　　　　　　　　　　　３ｄ　　導体押圧機構、
３１，３２，３３　ロ−ル対、　　　　　　　　３１ｄ，３２ｄ，３３ｄ　　押し付け機構、
４　コイル巻芯、　　　　　　　　　　４３，４４　　検出装置。[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an electromagnet coil winding in which a conductor continuously supplied from a conductor supply device is pressed by a conductor molding device to form a curved shape, and the curved conductor is wound around a coil core to form an electromagnet coil. The present invention relates to a wire device.
[0002]
[Prior art]
FIG. 5 is a diagram showing a conventional electromagnet coil winding device shown in, for example, JP-A-2001-332435. In the drawing, 1 is a coil conductor, 1b is a conductor supplied from a conductor supply device 2 described later, It is formed on the electromagnet coil 1. 1c is a conductor in which the conductor 1b is formed into a curved shape by a conductor molding device 3 described later, 2 is a conductor supply device such as a winding drum, and the track 21 is placed on a track 21 on the floor via a table (not shown). The vehicle travels along arrow 21 in the direction of arrow 2a.
[0003]
Reference numeral 3 denotes a conductor forming device for bending and forming the conductor 1b into a curved shape. The conductor forming device 3 includes three pairs of rolls 31, 32, and 33. The center roll pair 32 is in a direction perpendicular to the conductor 1b (in the direction indicated by an arrow 34a). This is a position movable roll whose position is controlled by a drive mechanism 34, and controls the bending radius of the conductor 1b to bend the conductor 1b into a curved shape having a predetermined bending radius. The center roll pair 32 is driven to rotate by a rotation driving device (not shown). Reference numeral 4 denotes a coil core, which winds the conductor 1b bent into the curved shape to form the electromagnet coil 1.
[0004]
Next, the operation will be described. The conductor 1b is wound around a conductor supply device 2 such as a supply drum and sent to a conductor forming device 3. The center roll pair 32 of the conductor forming device 3 is driven by a drive mechanism 34 at a position substantially perpendicular to the conductor 1b, thereby bending the conductor 1b into a curved shape. The central roll 32 is driven to rotate (the drive mechanism is not shown) and drives the conductor 1b in the longitudinal direction of the conductor to send it out. The conductor 1c bent and formed by the conductor forming device 3 is wound around a coil core 4 on a turntable (not shown) rotating in the direction of arrow 4a and formed into a continuous winding, and a winding conductor, that is, an electromagnet coil It becomes 1. The position drive and the rotation drive of the center roll 32 of the conductor forming device 3 are controlled by a bending device control panel (not shown).
[Problems to be solved by the invention]
[0005]
The conventional electromagnet coil winding method and apparatus require a winding conductor wound around the coil core 4, that is, the winding radius of the electromagnet coil 1 gradually increases as the coil winding progresses, and the necessary bending of the conductor 1b is performed. The radius must be gradually increased. Not only is the position of the center bending roll 32 of the conductor forming apparatus 3 gradually changed, but also the conductor supply Since the winding radius of the conductor 1b on the device 2 gradually decreases, it is necessary to move the position of the conductor supply device 2 in a direction substantially perpendicular to the longitudinal direction of the conductor 1b (the direction of arrow 2a). A table (not shown) on which the conductor supply device 2 is installed is provided with a movement drive mechanism (not shown) so as to move the conductor supply device 2 in the direction of the arrow 2a. By a mechanism (not shown), the conductor supply unit 2 on the table (not shown), to travel on the floor of the orbit 21. Therefore, there is a problem that the structure around the conductor supply device 2 is complicated, the occupied area is large, and the cost is high. In the case where the electromagnet coil 1 is large and the coil conductor amount is large, the above problem is particularly large when the supply drum of the conductor supply device 2 is large, having a size of m units and a mass of several tens tons, and requiring several hundred million yen. Notable in line equipment.
[0006]
The present invention has been made in view of the above-mentioned conventional circumstances, and has as its object to realize an electromagnet coil winding device that can be wound with a small and inexpensive device.
[0007]
[Means for Solving the Problems]
An electromagnet coil winding device according to the first aspect of the present invention includes a conductor supply device that continuously supplies a conductor, a coil winding core that winds the curved conductor into a coil shape, and the conductor supply device. And a conductor straightening mechanism provided between the coil winding core and guiding the conductor supplied from the conductor supply device in a straight line between the entrance and the exit thereof, and disposed on the exit side of the conductor straightening mechanism. A conductor pressing mechanism that presses a conductor guided linearly by the conductor straightening mechanism at a predetermined angle with respect to the longitudinal direction of the conductor to bend the conductor, The conductor formed into a curved shape by a molding device is wound around the coil core in a coil shape.
[0008]
An electromagnet coil winding device according to a second aspect of the present invention includes a conductor supply device that continuously supplies a conductor, a coil winding core that winds the curved conductor into a coil shape, and the conductor supply device. And at least three pairs of rolls, which are disposed between the conductor and the coil core and sandwich the conductor supplied from the conductor supply device by paired rolls, are disposed in the longitudinal direction of the conductor, and are provided on the entrance side. A conductor forming device for pressing and bending the conductor at a predetermined angle with respect to the longitudinal direction of the conductor by a roll on the exit side from at least two pairs of rolls, and forming the conductor into a curved shape by the conductor forming device; And winding the formed conductor around the coil winding core in a coil shape.
[0009]
An electromagnet coil winding device according to a third aspect of the present invention is the electromagnet coil winding device according to any one of the first and second aspects, wherein a load greater than a reaction force generated on the conductor due to the pressing is applied. A pressing mechanism is provided, and the conductor is bent into a desired shape by the pressing mechanism.
[0010]
An electromagnet coil winding device according to a fourth aspect of the present invention is the electromagnet coil winding device according to any one of the first and second aspects, wherein a pair of the electromagnet coil winding devices is configured to press and bend the conductor. A detecting device for detecting a deviation between a direction connecting the center lines of the rolls and a normal line of the curved shape of the conductor, and the detecting device is used to set a pair of roll center lines for pressing and bending the conductor. The attitude of a pair of rolls that presses and bends the conductor in a direction in which the connecting direction coincides with the normal of the curved shape of the conductor is controlled.
[0011]
BEST MODE FOR CARRYING OUT THE INVENTION
Embodiment 1 FIG.
Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a plan view showing an example of an electromagnet coil winding device, and FIG. 2 is an enlarged plan view showing a main part in FIG. 1 in an enlarged manner.
[0012]
1 and 2, reference numeral 1 denotes a coil conductor, and 1b denotes a conductor supplied from a conductor supply device 2 described later, which is formed on the electromagnet coil 1. Reference numeral 1c denotes a conductor in which the conductor 1b is formed into a curved shape by a conductor molding device 3, which will be described later, and 2 denotes a conductor supply device such as a take-up drum, the position of which is fixed to rotate for supplying the conductor 1b. That is,
A moving drive mechanism (shown in FIG. 5) for moving the track 21 on the floor and the position of the conductor supply device 2 in a direction substantially perpendicular to the longitudinal direction of the conductor 1b (direction of arrow 2a) as in the conventional device shown in FIG. Is not provided.
[0013]
Reference numeral 3 denotes a conductor forming device for bending and forming the conductor 1b into a curved shape. The conductor forming device 3 is provided between the conductor supply device 2 and a coil core 4, which will be described later, and is supplied from the conductor supply device by a pair of rolls. Three pairs of rolls 31, 32, 33 sandwiching the conductor are arranged in the longitudinal direction of the conductor 1b, and the pair of rolls 31, 32 on the entrance side are rolled by the roll 33 on the exit side from the pair of rolls 31, 32. Is pressed at a predetermined angle with the longitudinal direction of the conductor 1b to bend.
[0014]
Reference numeral 3a denotes a fixing base of the conductor molding device, which is fixed to an electromagnetic coil winding device or a fixed portion of a building where the electromagnetic coil winding device is installed. Reference numeral 3b denotes a mounting base on which the pair of rolls 31 (hereinafter, referred to as roll pairs 31) and the pair of rolls 32 (hereinafter, referred to as roll pairs 32) are mounted. It is fixed to the fixed base 3a. Reference numeral 3c denotes a linearizing mechanism composed of the roll pairs 31, 32 and the mounting base 3b. The linearizing mechanism linearly converts the conductor 1b supplied from the conductor supply device 2 between the entrance 3ci and the exit 3co. To guide.
[0015]
Reference numerals 31a and 31b denote rolls constituting the roll pair 31, and the conductor 1b is sandwiched between the rolls 31a and 31b. Rolls 32a and 32b constitute the roll pair 32. The rolls 32a and 32b sandwich the conductor 1b. Reference numerals 33a and 33b denote rolls forming the pair (hereinafter, referred to as a roll pair 33). The rolls 33a and 33b sandwich the conductor 1b.
[0016]
Reference numeral 33as denotes a shaft of the roll 33a, and 33c denotes a swing table which is attached to the fixed base 3a so as to be swingable about the center of the shaft 33as as shown by an arrow 33ca. is set up. 33d is a position drive mechanism attached to the fixed base 3a, which drives the roll 33a in the direction of the conductor 1b and controls the position of the roll 33a in the direction of the conductor 1b. Reference numeral 3d denotes the conductor pressing mechanism, which is constituted by the roll pair 33, the swing table 33c, and the driving mechanism 33d. The conductor 1b guided linearly by the conductor straightening mechanism 3c is shown in FIG. The conductor 1b is pressed at a predetermined angle to the longitudinal direction of the conductor 1b to bend the conductor 1b. Reference numeral 4 denotes a coil winding core, which winds the conductor 1c bent into the curved shape to form the electromagnet coil 1.
[0017]
Next, the operation will be described. The conductor 1b is wound around the conductor supply device 2 and sent to the conductor forming device 3. The conductor 1b is fed by, for example, the rotation of the entrance roll pair 31, and the exit roll pair 33 moves in a direction substantially perpendicular to the conductor 1b running direction while the bending moment is supported by the two roll pairs 31 and 32. As a result, the conductor 1b is bent. A conductor 1c bent into a curved shape is wound around a coil core 4 on a turntable (not shown) rotating in the direction of arrow 4a and formed into a continuous winding. It becomes.
[0018]
One of the rolls 33a, 33b constituting the roll pair 33 on the exit side is moved by the position driving device 33d in a direction substantially perpendicular to the conductor 1b (in the direction of the arrow 33aa). It is bent into a curved shape. The roll 33b is driven by the bending of the conductor 1b due to the movement of the roll 33a, and the swing table 33c moves in the direction indicated by the arrow 33ca so as to draw an arc centered on the center of the axis 33as of the roll 33a. Make a dynamic rotation. Since the bending of the conductor 1b is caused by the movement of the position of the roll 33a on the exit side of the straightening mechanism 3c, the angle at which the conductor 1b enters the conductor forming device 3 is not changed by the bending, and the conductor supply device is not bent. The change in the angle of entry of the conductor 1b into the conductor molding device 3 due to the decrease in the conductor winding diameter of No. 2 does not directly affect the bending of the conductor 1b by the conductor pressing mechanism 3d. Therefore, there is no need to change the position of the conductor supply device 2, and therefore, the position drive mechanism of the conductor supply device 2 and the trajectory for movement are unnecessary.
[0019]
Embodiment 2 FIG.
FIG. 3 is an enlarged plan view showing only an essential part of an example of the second embodiment of the present invention. As shown in FIG. 3, the rolls 31b, 32b, 32b on one side of the rolls 31, 32, 33 are shown. 33b is configured to be pressed by pressing mechanisms 31d, 32d, 33d to press the conductor 1b against the other rolls 31a, 32a, 33a on the other side.
[0020]
The cross-sectional dimension of the conductor 1b supplied to the conductor forming device 3 varies within a specified range, and if the distance between the rolls of each pair of rolls is fixed, the roll is not rolled in a portion where the conductor 1b is thick. The pair sandwiches the conductor 1b excessively strongly, the conductor running resistance increases abnormally, and the conductor 1b cannot be sent. Conversely, in a portion where the conductor 1b is thin, a gap is generated between the roll and the conductor 1b, and there has been a problem that the bending radius cannot be accurately controlled. Embodiment 2 of the present invention seeks to solve this problem.
[0021]
Hereinafter, the operation of the second embodiment of the present invention will be described with reference to FIG. In the roll pair 31, 32, 33 in the conductor forming device 3, the rolls 31b, 32b, 33b on one side are pressed against the conductor 1b by pressing mechanisms 31d, 32d, 33d, respectively, and the mating rolls 31a, 32a, The conductor 1b is positively sandwiched as shown by the thick arrow with 33a. The pressing mechanisms 31d, 32d, and 33d are, for example, hydraulic mechanisms, and are mechanisms that control force instead of displacement. The conductor 1b is always sandwiched between the roll pairs 31, 32, and 33 with a constant force even if there is a change in the cross-sectional dimension, so that the conductor 1b is not sandwiched by an excessive force and no gap is generated. In the configuration of FIG. 3, a bending fulcrum reaction force acts on the roll pair 32, and a force acts in a direction in which the conductor 1 b moves away from the roll. Therefore, the pressing force generated by the pressing mechanism has a sufficient margin beyond this reaction force. Must be a value. Note that the reaction force may be obtained by design or may be measured by a reaction force measurement unit.
[0022]
As described above, according to the second embodiment of the present invention, in response to the variation in the cross-sectional dimension of the conductor 1b being bent, the rolls in the pair of rolls press each other so that the conductor 1b is sandwiched without any gap. Bending can be performed with high precision without stopping the conductor feed due to dimensional fluctuation.
[0023]
Embodiment 3 FIG.
FIG. 4 is an enlarged plan view showing only an essential part of an example of the third embodiment of the present invention. As shown in FIG. 4, a mechanism for controlling the angle (posture) of the roll pair 33 on the exit side with respect to the conductor 1b. Is provided. That is, arm mechanisms 41 and 42 are provided on the swing table 33c of the roll pair 33 on the exit side, and the ends of the arm mechanisms 41 and 42 are provided between the centers of the rolls 33a and 33b of the roll pair 33 on the exit side. Detectors 43 and 44 such as a length measuring mechanism for measuring a distance from the conductor 1b in the connecting direction 50 are provided. These detecting devices 43 and 44 detect the deviation between the direction connecting the center lines of the pair of rolls which press and bend the conductor and the normal line of the conductor. Reference numeral 40 denotes a rotary drive mechanism for rotating the outlet-side roll pair 33 in a plane where the bending radius of the conductor 1b exists.
[0024]
The direction of the roll pair 33 on the outlet side is held in a direction substantially perpendicular to the conductor 1b by the mechanism 33d for pressing the roll pair 33 described in the third embodiment, but when the bending radius of the conductor 1b is large, the conductor 1b The effect of the tangential force on the conductor 1b due to disturbances such as slight irregularities on the surface of the conductor 1b, and the mechanism 33d for pressing the roll pair 33 becomes relatively larger than the conductor tangential force holding the roll pair 33 at a right angle. Can not be controlled at right angles. If the direction of the roll pair 33 on the exit side is not completely perpendicular to the conductor 1b, the bending in the bending of the coil conductor is performed, for example, in the case of bending from a small radius of curvature to a large radius in bending of a non-circular coil. When the outlet roll position is moved in the direction of decreasing the depth of the roll, a bending reaction force acts on the inner diameter side roll 33b of the bending radius of the outlet roll pair 33 in FIG. 2, but this roll 33b, the outlet roll position driving mechanism 33d and However, there is a problem that a gap is generated, which is disadvantageous for accurate bending radius control. Embodiment 3 of the present invention seeks to solve this problem.
[0025]
Hereinafter, the operation of the third embodiment of the present invention will be described with reference to FIG. The distances L1 and L2 between the arms 41 and 42 of the exit side roll stand and the conductor 1b are measured by the detectors 43 and 44, and the exit roll stand swing rotation drive mechanism 40 is operated so as to eliminate the difference between the measured distances. Drive rotationally. The oscillating rotation drive mechanism 40 is, for example, a servomotor, and is controlled from a bending-forming control panel (not shown). As described above, in the third embodiment of the present invention, since the direction of the outlet-side roll pair is actively controlled so as to be perpendicular to the coil conductor 1b, there is no gap between the outlet-side roll and the coil conductor. Therefore, even in the case of bending a non-circular coil, accurate bending can be controlled.
[0026]
Embodiment 4 FIG.
In the above-described first to third embodiments of the present invention, the case where the number of the rolls of the conductor forming device 3 is three, 31, 32, and 33 is described. However, four or more pairs may be used. The position of the pair or more rolls is fixed, and the conductor 1b can be bent by moving the position of the remaining roll pair on the exit side.
[0027]
Embodiment 5 FIG.
In the above-described first to third embodiments of the present invention, the case where the reaction force of the conductor 1b due to the bending of the conductor 1b is received by the roll pair 32 of the linearization mechanism 3c has been exemplified. A mechanism such as a roll for receiving the reaction force of the conductor 1b due to the bending of the conductor 1b may be provided between the linear pressing mechanism 3c and the conductor pressing mechanism 3d. The effects of the first to third embodiments of the present invention are achieved.
[0028]
Embodiment 6 FIG.
Further, in the above-described first to third embodiments of the present invention, the case where two pairs of rolls 31a, 31b, 32a, 32b are provided in the linearizing mechanism 3c has been exemplified. That is, a plurality of rolls having a random arrangement are provided on one side of the conductor 1b, and a plurality of rolls having a random arrangement are provided on the rolls 31b and 32b, that is, the other side of the conductor 1b. Even if the rolls on one side and the other side of the conductor 1b do not always form a pair, the conductor 1b is sandwiched between the one side and the other side of the conductor 1b, and Even if a belt conveyor or a caterpillar, etc., which feeds the conductor 1b, a linearizing function for guiding the conductor 1b in a straight line may be generated, the effect of the above-described first to third embodiments of the present invention is also obtained in that case. Play.
[0029]
【The invention's effect】
The electromagnet coil winding device according to claim 1, wherein a conductor supply device that continuously supplies a conductor, a coil core that winds the conductor formed into a coil shape in a coil shape, and the conductor supply device and the conductor supply device. A conductor linearization mechanism provided between the coil core and guiding the conductor supplied from the conductor supply device in a straight line between the entrance and the exit thereof; and A conductor pressing device configured to press a conductor guided linearly by a conductor straightening mechanism at a predetermined angle with respect to a longitudinal direction of the conductor to curve the conductor; Since the conductor formed into a curved shape is wound around the coil core in a coil shape, a moving mechanism and a moving track of the conductor supplying device are unnecessary, and the winding device is small and inexpensive. effect A.
[0030]
The electromagnet coil winding device according to claim 2, wherein a conductor supply device that continuously supplies a conductor, a coil core that winds the conductor formed into a coil shape into a coil shape, and the conductor supply device and the conductor supply device. At least three pairs of rolls disposed between the coil core and holding the conductor supplied from the conductor supply device by paired rolls are disposed in the longitudinal direction of the conductor, and at least two rolls on the entrance side are provided. A conductor forming device is provided which presses and curves the conductor at a predetermined angle with respect to the longitudinal direction of the conductor by a roll on the outlet side of the pair of rolls, and is formed into a curved shape by the conductor forming device. Since the conductor is wound around the coil core in the form of a coil, there is an effect that a specific winding device which does not require a moving mechanism or a moving track of the conductor supplying device can be realized.
[0031]
According to a third aspect of the present invention, in the electromagnet coil winding apparatus according to any one of the first and second aspects, the pressing is performed by applying a load equal to or more than a reaction force generated in the conductor by the pressing. A mechanism is provided, and the conductor is curved into a desired shape by the pressing mechanism. Therefore, there is an effect that the feeding of the conductor is not stopped due to a change in the cross-sectional dimension of the conductor, and the bending can be performed with high precision.
[0032]
An electromagnet coil winding apparatus according to a fourth aspect of the present invention is the electromagnet coil winding apparatus according to any one of the first and second aspects, wherein a pair of the electromagnet coil winding apparatuses is configured to press and bend the conductor. A detecting device for detecting a deviation between a direction connecting the center lines of the rolls and a normal line of the curved shape of the conductor, and the detecting device is used to set a pair of roll center lines for pressing and bending the conductor. The posture of the roll forming a pair that presses and bends the conductor is controlled in a direction in which the connecting direction coincides with the normal line of the curved shape of the conductor. It has the effect of improving.
[Brief description of the drawings]
FIG. 1 is a plan view showing a first embodiment of the present invention.
FIG. 2 is a view showing the first embodiment of the present invention, and is an enlarged plan view showing a main part of FIG. 1;
FIG. 3 is an enlarged plan view of a main part, showing Embodiment 2 of the present invention.
FIG. 4 is an essential part enlarged plan view showing a third embodiment of the present invention.
FIG. 5 is a plan view showing a conventional electromagnet coil winding device.
[Explanation of symbols]
1 electromagnet coil, 1b, 1c coil conductor,
2 conductor supply device, 3 conductor forming device,
3c conductor straightening mechanism, 3ci entrance,
3co outlet, 3d conductor pressing mechanism,
31, 32, 33 roll pair, 31d, 32d, 33d pressing mechanism,
4 Coil core, 43, 44 Detector.

Claims

A conductor supply device for continuously supplying a conductor, a coil core for winding the conductor formed into a coil shape into a coil, and a conductor supply device provided between the conductor supply device and the coil core. A conductor straightening mechanism for guiding the supplied conductor in a straight line between the entrance and the exit thereof, and a conductor disposed on the outlet side of the conductor straightening mechanism and guided linearly by the conductor straightening mechanism. A conductor pressing mechanism that presses the conductor at a predetermined angle with respect to the longitudinal direction of the conductor to bend the conductor; and a conductor core formed by the conductor shaping device into a curved shape. Electromagnet coil winding device that winds into a coil.

A conductor supply device for continuously supplying a conductor, a coil core for winding the conductor formed into a coil shape in a coil shape, and a pair disposed between the conductor supply device and the coil core, respectively. At least three pairs of rolls sandwiching the conductor supplied from the conductor supply device by rolls are arranged in the longitudinal direction of the conductor, and the pair of rolls on the outlet side are closer to the outlet than at least two pairs of rolls on the entrance side. An electromagnet, comprising: a conductor forming device that presses and curves a conductor at a predetermined angle with respect to the longitudinal direction of the conductor, and winds the conductor formed into a curved shape by the conductor forming device in a coil shape around the coil core. Coil winding device.

The electromagnet coil winding device according to any one of claims 1 and 2, further comprising: a pressing mechanism for applying a load equal to or greater than a reaction force generated on the conductor by the pressing, wherein the pressing mechanism causes the conductor to have a desired shape. Electromagnetic coil winding device that is curved.

3. The electromagnet coil winding device according to claim 1, wherein a direction connecting a center line of a pair of rolls that presses and bends the conductor and a normal line of a curved shape of the conductor. And a detecting device for detecting a deviation from the center line of the pair of rolls forming a pair that presses and bends the conductor so as to coincide with a normal line of the curved shape of the conductor. An electromagnet coil winding device for controlling the posture of a pair of rolls which presses and bends the conductor.