JP7075333B2 - Coil forming method and coil forming equipment - Google Patents

Coil forming method and coil forming equipment Download PDF

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JP7075333B2
JP7075333B2 JP2018231407A JP2018231407A JP7075333B2 JP 7075333 B2 JP7075333 B2 JP 7075333B2 JP 2018231407 A JP2018231407 A JP 2018231407A JP 2018231407 A JP2018231407 A JP 2018231407A JP 7075333 B2 JP7075333 B2 JP 7075333B2
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winding
scheduled
wire rod
coil forming
winding core
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JP2020096026A (en
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尚 吉田
拓郎 吉村
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Honda Motor Co Ltd
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Honda Motor Co Ltd
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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
    • H02K15/04—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of windings, prior to mounting into machines
    • H02K15/0435—Wound windings

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Power Engineering (AREA)
  • Manufacture Of Motors, Generators (AREA)
  • Coil Winding Methods And Apparatuses (AREA)

Description

本発明は、一方向に延在した巻芯の巻回予定部に線材を引っ張りながら螺旋状に巻回することによってコイルを成形するコイル成形方法及びコイル成形装置に関する。 The present invention relates to a coil forming method and a coil forming apparatus for forming a coil by spirally winding a wire while pulling a wire around a winding core extending in one direction.

例えば、特許文献１には、長尺な巻芯の巻回予定部に線材を螺旋状に巻回することによってコイルを成形するコイル成形方法及びコイル成形装置が開示されている。 For example, Patent Document 1 discloses a coil forming method and a coil forming apparatus for forming a coil by spirally winding a wire rod around a planned winding portion of a long winding core.

特許第４３３６７００号公報Japanese Patent No. 4336700

ところで、特許文献１のような長尺な巻芯の巻回予定部に対して線材を引っ張りながら巻回すると、巻回予定部に線材からの引張力が作用するため、巻芯が撓み変形することがある。そうすると、巻回予定部に対して線材を精度よく巻回することができないおそれがある。 By the way, when the wire is wound while being pulled with respect to the planned winding portion of the long winding core as in Patent Document 1, the tensile force from the wire acts on the planned winding portion, so that the winding core is bent and deformed. Sometimes. Then, there is a possibility that the wire rod cannot be wound accurately with respect to the planned winding portion.

本発明は、このような課題を考慮してなされたものであり、一方向に延在した巻芯の巻回予定部に線材を引っ張りながら巻回する際に巻回予定部の撓み変形を抑えることができ、これによって巻回予定部に対して線材を精度よく巻回することができるコイル成形方法及びコイル成形装置を提供することを目的とする。 The present invention has been made in consideration of such a problem, and suppresses bending deformation of the scheduled winding portion when the wire is wound while being pulled around the scheduled winding portion of the winding core extending in one direction. It is an object of the present invention to provide a coil forming method and a coil forming apparatus capable of accurately winding a wire rod around a planned winding portion.

本発明の一態様は、一方向に延在した巻芯の巻回予定部に線材を引っ張りながら螺旋状に巻回することによってコイルを成形するコイル成形方法であって、前記巻回予定部に前記線材を巻回する際に、前記巻回予定部を押さえ機構で押さえることによって、前記線材から前記巻回予定部に作用する引張力を前記押さえ機構によって受け、且つ、前記巻回予定部に前記線材を巻回する際に、前記押さえ機構を前記巻芯に対して前記巻芯の軸線方向に沿って移動させる、コイル成形方法である。
One aspect of the present invention is a coil forming method in which a coil is formed by spirally winding a wire rod around a planned winding portion of a winding core extending in one direction while pulling the wire rod, and the winding scheduled portion is covered with a coil. When the wire rod is wound, the scheduled winding portion is pressed by the pressing mechanism, so that the tensile force acting on the scheduled winding portion from the wire rod is received by the pressing mechanism , and the scheduled winding portion is pressed. This is a coil forming method in which when the wire rod is wound, the holding mechanism is moved with respect to the winding core along the axial direction of the winding core .

本発明の他の態様は、一方向に延在した巻芯の巻回予定部に線材を引っ張りながら螺旋状に巻回することによってコイルを成形するコイル成形装置であって、前記巻芯と、前記巻回予定部に前記線材を巻回する際に、前記巻回予定部を押さえることによって、前記線材から前記巻回予定部に作用する引張力を受ける押さえ機構と、前記押さえ機構を前記巻芯の軸線方向に沿って前記巻芯に対して移動させる移動機構と、を備える、コイル成形装置である。
Another aspect of the present invention is a coil forming apparatus for forming a coil by spirally winding a wire rod around a winding core extending in one direction while pulling the wire, and the winding core and the winding core When the wire rod is wound around the scheduled winding portion, the holding mechanism that receives the tensile force acting on the scheduled winding portion from the wire rod by pressing the scheduled winding portion and the holding mechanism are wound. It is a coil forming apparatus provided with a moving mechanism for moving the winding core along the axial direction of the core .

本発明によれば、線材から巻回予定部に作用する引張力を押さえ機構によって受けることができるため、一方向に延在した巻芯の巻回予定部に線材を巻回する際に巻回予定部の撓み変形を抑えることができる。これにより、巻回予定部に対して線材を精度よく巻回することができる。
According to the present invention, since the tensile force acting on the planned winding portion from the wire can be received by the pressing mechanism, the wire is wound when the wire is wound around the scheduled winding portion of the winding core extending in one direction. It is possible to suppress the bending deformation of the planned portion. As a result, the wire can be accurately wound around the planned winding portion.

本発明の一実施形態に係るコイル成形装置の側面図である。It is a side view of the coil forming apparatus which concerns on one Embodiment of this invention. 図１の押さえ機構及び折り曲げ機構の縦断面説明図である。It is a vertical cross-sectional explanatory view of the holding mechanism and the bending mechanism of FIG. 図２のＩＩＩ－ＩＩＩ線に沿った横断面説明図である。FIG. 3 is an explanatory cross-sectional view taken along the line III-III of FIG. 図１のコイル成形装置を用いたコイル成形方法のフローチャートである。It is a flowchart of the coil forming method using the coil forming apparatus of FIG. 図５Ａは、準備工程の第１の説明図であり、図５Ｂは、準備工程の第２の説明図であり、図５Ｃは、準備工程の第３の説明図である。5A is a first explanatory diagram of the preparation process, FIG. 5B is a second explanatory diagram of the preparation process, and FIG. 5C is a third explanatory diagram of the preparation process. 巻回工程の第１の説明図である。It is 1st explanatory drawing of the winding process. 巻回工程の第２の説明図である。It is a 2nd explanatory drawing of a winding process. 図８Ａは、巻芯が第１位置にあるときの折り曲げ機構の説明図であり、図８Ｂは、巻芯が第１位置にあるときの押さえ機構の説明図であり、図８Ｃは、巻芯が第２位置にあるときの折り曲げ機構の説明図であり、図８Ｄは、巻芯が第２位置にあるときの押さえ機構の説明図である。FIG. 8A is an explanatory diagram of a bending mechanism when the winding core is in the first position, FIG. 8B is an explanatory diagram of a pressing mechanism when the winding core is in the first position, and FIG. 8C is an explanatory diagram of the winding core. Is an explanatory diagram of the bending mechanism when is in the second position, and FIG. 8D is an explanatory diagram of the pressing mechanism when the winding core is in the second position. 図９Ａは、巻芯が第３位置にあるときの折り曲げ機構の説明図であり、図９Ｂは、巻芯が第３位置にあるときの押さえ機構の説明図であり、図９Ｃは、巻芯が第４位置にあるときの折り曲げ機構の説明図であり、図９Ｄは、巻芯が第４位置にあるときの押さえ機構の説明図である。9A is an explanatory diagram of the bending mechanism when the winding core is in the third position, FIG. 9B is an explanatory diagram of the pressing mechanism when the winding core is in the third position, and FIG. 9C is an explanatory diagram of the winding core. Is an explanatory diagram of a bending mechanism when is in the fourth position, and FIG. 9D is an explanatory diagram of a pressing mechanism when the winding core is in the fourth position.

以下、本発明に係るコイル成形方法及びコイル成形装置について好適な実施形態を挙げ、添付の図面を参照しながら説明する。 Hereinafter, a coil forming method and a coil forming apparatus according to the present invention will be described with reference to suitable embodiments with reference to the accompanying drawings.

図１に示すように、本発明の一実施形態に係るコイル成形方法及びコイル成形装置１０は、例えば、図示しない回転電機のステータコアに形成される複数のスロットに挿入されるコイル１３を成形する。ただし、本発明に係るコイル成形方法及びコイル成形装置１０で成形されるコイル１３の用途は、特に限定されない。 As shown in FIG. 1, the coil forming method and the coil forming apparatus 10 according to the embodiment of the present invention form, for example, a coil 13 inserted into a plurality of slots formed in a stator core of a rotary electric machine (not shown). However, the coil forming method according to the present invention and the use of the coil 13 formed by the coil forming apparatus 10 are not particularly limited.

コイル成形装置１０は、一方向（矢印Ａ方向）に延在した巻芯１４の巻回予定部３２に線材１２を引っ張りながら螺旋状に巻回することによってコイル１３を成形する巻回装置である。 The coil forming device 10 is a winding device that forms a coil 13 by spirally winding the wire rod 12 around the scheduled winding portion 32 of the winding core 14 extending in one direction (arrow A direction) while pulling the wire rod 12. ..

コイル成形装置１０は、巻芯１４、第１軸部材１６、第２軸部材１８、第１支持部材２０、第２支持部材２２、第１移動機構２４、押さえ機構２６、第２移動機構２８、折り曲げ機構３０及び制御部３１を備える。 The coil forming apparatus 10 includes a winding core 14, a first shaft member 16, a second shaft member 18, a first support member 20, a second support member 22, a first movement mechanism 24, a pressing mechanism 26, and a second movement mechanism 28. It includes a bending mechanism 30 and a control unit 31.

巻芯１４には、線材１２が巻回される巻回予定部３２が設けられている。図３に示すように、巻回予定部３２は、横断面が矩形状に形成されている。具体的には、巻回予定部３２の外面には、第１平面３２ａ、第１湾曲面３２ｂ、第２平面３２ｃ及び第２湾曲面３２ｄが設けられている。第１平面３２ａと第２平面３２ｃとは、互いに平行に延在している。第１平面３２ａ及び第２平面３２ｃのそれぞれは、巻芯１４の軸線方向（矢印Ａ方向）及び幅方向に延在している。 The winding core 14 is provided with a scheduled winding portion 32 around which the wire rod 12 is wound. As shown in FIG. 3, the planned winding portion 32 has a rectangular cross section. Specifically, the outer surface of the planned winding portion 32 is provided with a first plane 32a, a first curved surface 32b, a second plane 32c, and a second curved surface 32d. The first plane 32a and the second plane 32c extend in parallel with each other. Each of the first plane 32a and the second plane 32c extends in the axial direction (arrow A direction) and the width direction of the winding core 14.

第１湾曲面３２ｂは、第１平面３２ａの一方の側部と第２平面３２ｃの一方の側部とを互いに連結する。第２湾曲面３２ｄは、第１平面３２ａの他方の側部と第２平面３２ｃの他方の側部とを互いに連結する。第１湾曲面３２ｂ及び第２湾曲面３２ｄのそれぞれは、横断面が半円状（円弧状）に形成されている。第１湾曲面３２ｂ及び第２湾曲面３２ｄのそれぞれは、巻芯１４の軸線方向及び厚さ方向に延在している。 The first curved surface 32b connects one side portion of the first plane 32a and one side portion of the second plane 32c to each other. The second curved surface 32d connects the other side portion of the first plane 32a and the other side portion of the second plane 32c to each other. Each of the first curved surface 32b and the second curved surface 32d has a semicircular (arc-shaped) cross section. Each of the first curved surface 32b and the second curved surface 32d extends in the axial direction and the thickness direction of the winding core 14.

図１において、第１軸部材１６及び第２軸部材１８のそれぞれは、円柱状に形成されている。第１軸部材１６は、締結部材３４によって巻芯１４の一端部（矢印Ａ１方向の端部）に取り外し可能に連結されている。第２軸部材１８は、締結部材３６によって巻芯１４の他端部（矢印Ａ２方向の端部）に取り外し可能に連結されている。 In FIG. 1, each of the first shaft member 16 and the second shaft member 18 is formed in a columnar shape. The first shaft member 16 is removably connected to one end of the winding core 14 (the end in the direction of arrow A1) by the fastening member 34. The second shaft member 18 is removably connected to the other end of the winding core 14 (the end in the direction of arrow A2) by the fastening member 36.

第１支持部材２０は、床面等に固定された第１支持本体３８と、第１支持本体３８の第１貫通孔４０に配設されて第１軸部材１６を回転自在に支持する２つの第１軸受４２とを有する。第１軸受４２は、転がり軸受として構成されている。ただし、第１軸受４２は、すべり軸受であってもよい。第１軸受４２の数は、任意に設定することができる。 The first support member 20 is arranged in a first support main body 38 fixed to a floor surface or the like and a first through hole 40 of the first support main body 38 to rotatably support the first shaft member 16. It has a first bearing 42. The first bearing 42 is configured as a rolling bearing. However, the first bearing 42 may be a slide bearing. The number of the first bearings 42 can be set arbitrarily.

第２支持部材２２は、床面等に固定された第２支持本体４４と、第２支持本体４４の第２貫通孔４６に配設されて第２軸部材１８を回転自在に支持する２つの第２軸受４８とを有する。第２軸受４８は、転がり軸受として構成されている。ただし、第２軸受４８は、すべり軸受であってもよい。第２軸受４８の数は、任意に設定することができる。 The second support member 22 is provided in a second support main body 44 fixed to a floor surface or the like and a second through hole 46 of the second support main body 44 to rotatably support the second shaft member 18. It has a second bearing 48. The second bearing 48 is configured as a rolling bearing. However, the second bearing 48 may be a slide bearing. The number of the second bearings 48 can be set arbitrarily.

図１～図３に示すように、第１移動機構２４は、押さえ機構２６を巻芯１４の軸線方向に沿って巻芯１４に対して移動させるためのものである。第１移動機構２４は、第１駆動機構５０と第１案内機構５２とを有する。第１駆動機構５０は、ボールねじ機構として構成されており、巻芯１４の軸線方向に沿って延在した第１ねじ軸５４と、押さえ機構２６に設けられて第１ねじ軸５４に螺合する第１ナット５６と、第１ナット５６に設けられた複数の第１ボール５７と、第１ねじ軸５４を回転させるための第１モータ５８とを含む。第１駆動機構５０は、ボールねじ機構でなくてもよい。 As shown in FIGS. 1 to 3, the first moving mechanism 24 is for moving the pressing mechanism 26 with respect to the winding core 14 along the axial direction of the winding core 14. The first moving mechanism 24 has a first driving mechanism 50 and a first guide mechanism 52. The first drive mechanism 50 is configured as a ball screw mechanism, and is screwed into a first screw shaft 54 extending along the axial direction of the winding core 14 and a first screw shaft 54 provided in the holding mechanism 26. A first nut 56, a plurality of first balls 57 provided on the first nut 56, and a first motor 58 for rotating the first screw shaft 54 are included. The first drive mechanism 50 does not have to be a ball screw mechanism.

第１案内機構５２は、押さえ機構２６を巻芯１４の軸線方向に沿って案内するためのものである。第１案内機構５２は、巻芯１４の軸線方向に沿って延在した２本の第１レール６０と、押さえ機構２６に設けられた４つの第１スライダ６２とを含む。２本の第１レール６０は、第１ねじ軸５４の両側に互いに平行に設けられている。 The first guide mechanism 52 is for guiding the pressing mechanism 26 along the axial direction of the winding core 14. The first guide mechanism 52 includes two first rails 60 extending along the axial direction of the winding core 14, and four first sliders 62 provided on the holding mechanism 26. The two first rails 60 are provided parallel to each other on both sides of the first screw shaft 54.

これら第１スライダ６２は、各第１レール６０に対して巻芯１４の軸線方向に沿って摺動可能に２つずつ係合している。第１案内機構５２において、第１レール６０の本数及び第１スライダ６２の個数は、任意に設定可能である。 Two of these first sliders 62 are slidably engaged with each of the first rails 60 along the axial direction of the winding core 14. In the first guide mechanism 52, the number of the first rail 60 and the number of the first sliders 62 can be arbitrarily set.

図２及び図３に示すように、押さえ機構２６は、巻芯１４をその軸線の周りに回転させる。押さえ機構２６は、基部６４、２つの軸受６６、環状部６８、２つの押さえ部７０、７２及び回転駆動部７４を有する。 As shown in FIGS. 2 and 3, the pressing mechanism 26 rotates the winding core 14 around its axis. The pressing mechanism 26 has a base portion 64, two bearings 66, an annular portion 68, two pressing portions 70 and 72, and a rotation driving portion 74.

基部６４は、基台７６及び支持枠７８を備える。基台７６は、矢印Ａ方向に沿って延在している。基台７６の底面７６ａ（矢印Ｂ１方向を指向する面）には、第１ナット５６と第１スライダ６２とが固着されている。支持枠７８は、基台７６の矢印Ａ方向の中間部から２本の第１レール６０が位置する側とは反対側（矢印Ｂ２方向）に向かって延びている。支持枠７８は、基部６４の幅方向（矢印Ｃ方向、２本の第１レール６０の並び方向）に沿って延びている。すなわち、支持枠７８は、矢印Ａ方向からの平面視で矩形状に形成されている（図３参照）。支持枠７８の内孔８０には、環状部６８及び押さえ部７０が配設されるとともに巻芯１４が挿通される。 The base 64 includes a base 76 and a support frame 78. The base 76 extends along the direction of arrow A. The first nut 56 and the first slider 62 are fixed to the bottom surface 76a (the surface facing the arrow B1 direction) of the base 76. The support frame 78 extends from the intermediate portion of the base 76 in the direction of arrow A toward the side opposite to the side where the two first rails 60 are located (direction of arrow B2). The support frame 78 extends along the width direction of the base 64 (direction of arrow C, arrangement direction of the two first rails 60). That is, the support frame 78 is formed in a rectangular shape in a plan view from the direction of arrow A (see FIG. 3). An annular portion 68 and a holding portion 70 are arranged in the inner hole 80 of the support frame 78, and the winding core 14 is inserted through the inner hole 80.

各軸受６６は、支持枠７８の内孔８０を形成する内面に固着されている。軸受６６は、転がり軸受として構成されている。ただし、軸受６６は、すべり軸受であってもよい。軸受６６の数は、任意に設定することができる。環状部６８は、円環状に形成され、２つの軸受６６に回転自在に支持されている。環状部６８の内孔８２には、巻芯１４が挿通される。環状部６８は、支持枠７８よりも矢印Ａ２方向に突出している。 Each bearing 66 is fixed to an inner surface forming an inner hole 80 of the support frame 78. The bearing 66 is configured as a rolling bearing. However, the bearing 66 may be a plain bearing. The number of bearings 66 can be set arbitrarily. The annular portion 68 is formed in an annular shape and is rotatably supported by two bearings 66. The winding core 14 is inserted into the inner hole 82 of the annular portion 68. The annular portion 68 protrudes from the support frame 78 in the direction of arrow A2.

２つの押さえ部７０、７２は、矢印Ａ方向に互いに離間して設けられている。２つの押さえ部７０、７２は、互いに同一の構成であるため、以下では、押さえ部７０の構成について説明し、押さえ部７２の構成の説明については省略する。 The two holding portions 70 and 72 are provided apart from each other in the direction of arrow A. Since the two pressing portions 70 and 72 have the same configuration as each other, the configuration of the pressing portion 70 will be described below, and the description of the configuration of the pressing portion 72 will be omitted.

図３において、押さえ部７０は、第１接触部８４ａ、第２接触部８４ｂ、第３接触部８４ｃ及び第４接触部８４ｄを含む。第１接触部８４ａは、第１ローラ８６ａと、第１ローラ８６ａを回転自在に支持する第１ローラ支持部８８ａとを有する。第１ローラ８６ａは、第１平面３２ａ及び第１湾曲面３２ｂの境界部に接触する。第１ローラ８６ａは、巻芯１４の外周面を矢印Ａ方向（図２参照）に転動する。第１ローラ支持部８８ａは、環状部６８の内面に固着されている。 In FIG. 3, the pressing portion 70 includes a first contact portion 84a, a second contact portion 84b, a third contact portion 84c, and a fourth contact portion 84d. The first contact portion 84a has a first roller 86a and a first roller support portion 88a that rotatably supports the first roller 86a. The first roller 86a comes into contact with the boundary between the first plane 32a and the first curved surface 32b. The first roller 86a rolls on the outer peripheral surface of the winding core 14 in the direction of arrow A (see FIG. 2). The first roller support portion 88a is fixed to the inner surface of the annular portion 68.

第２接触部８４ｂは、第２ローラ８６ｂと、第２ローラ８６ｂを回転自在に支持する第２ローラ支持部８８ｂとを有する。第２ローラ８６ｂは、第２平面３２ｃ及び第１湾曲面３２ｂの境界部に接触する。第２ローラ８６ｂは、巻芯１４の外周面を矢印Ａ方向に転動する。第２ローラ支持部８８ｂは、環状部６８の内面に固着されている。 The second contact portion 84b has a second roller 86b and a second roller support portion 88b that rotatably supports the second roller 86b. The second roller 86b comes into contact with the boundary between the second plane 32c and the first curved surface 32b. The second roller 86b rolls on the outer peripheral surface of the winding core 14 in the direction of arrow A. The second roller support portion 88b is fixed to the inner surface of the annular portion 68.

第３接触部８４ｃは、第３ローラ８６ｃと、第３ローラ８６ｃを回転自在に支持する第３ローラ支持部８８ｃとを有する。第３ローラ８６ｃは、第１平面３２ａ及び第２湾曲面３２ｄの境界部に接触する。第３ローラ８６ｃは、巻芯１４の外周面を矢印Ａ方向に転動する。第３ローラ支持部８８ｃは、環状部６８の内面に固着されている。 The third contact portion 84c has a third roller 86c and a third roller support portion 88c that rotatably supports the third roller 86c. The third roller 86c comes into contact with the boundary between the first plane 32a and the second curved surface 32d. The third roller 86c rolls on the outer peripheral surface of the winding core 14 in the direction of arrow A. The third roller support portion 88c is fixed to the inner surface of the annular portion 68.

第４接触部８４ｄは、第４ローラ８６ｄと、第４ローラ８６ｄを回転自在に支持する第４ローラ支持部８８ｄとを有する。第４ローラ８６ｄは、第２平面３２ｃ及び第２湾曲面３２ｄの境界部に接触する。第４ローラ８６ｄは、巻芯１４の外周面を矢印Ａ方向に転動する。第４ローラ支持部８８ｄは、環状部６８の内面に固着されている。 The fourth contact portion 84d has a fourth roller 86d and a fourth roller support portion 88d that rotatably supports the fourth roller 86d. The fourth roller 86d comes into contact with the boundary between the second plane 32c and the second curved surface 32d. The fourth roller 86d rolls on the outer peripheral surface of the winding core 14 in the direction of arrow A. The fourth roller support portion 88d is fixed to the inner surface of the annular portion 68.

図２において、回転駆動部７４は、巻芯駆動モータ９０、モータ固定部９２及び動力伝達部９４を有する。巻芯駆動モータ９０は、巻芯１４を回転させるための駆動源である。モータ固定部９２は、支持枠７８の矢印Ｂ２方向の面に巻芯駆動モータ９０を固定するためのブラケットである。 In FIG. 2, the rotary drive unit 74 includes a winding core drive motor 90, a motor fixing unit 92, and a power transmission unit 94. The winding core drive motor 90 is a drive source for rotating the winding core 14. The motor fixing portion 92 is a bracket for fixing the winding core drive motor 90 to the surface of the support frame 78 in the direction of arrow B2.

動力伝達部９４は、巻芯駆動モータ９０の回転軸９０ａに固着された第１プーリ９６と、環状部６８の外周面のうち支持枠７８よりも矢印Ａ２方向に突出した部分に固着された第２プーリ９８と、第１プーリ９６の回転力を第２プーリ９８に伝えるための環状のベルト１００とを含む。動力伝達部９４は、任意に構成し得る。動力伝達部９４は、例えば、スプロケットとローラチェーンとによって巻芯駆動モータ９０の回転力を環状部６８に伝達してもよい。 The power transmission unit 94 is fixed to the first pulley 96 fixed to the rotary shaft 90a of the winding core drive motor 90 and the portion of the outer peripheral surface of the annular portion 68 protruding from the support frame 78 in the direction of arrow A2. It includes two pulleys 98 and an annular belt 100 for transmitting the rotational force of the first pulley 96 to the second pulley 98. The power transmission unit 94 may be arbitrarily configured. The power transmission unit 94 may transmit the rotational force of the winding core drive motor 90 to the annular portion 68 by, for example, a sprocket and a roller chain.

図３に示すように、第２移動機構２８は、押さえ機構２６の基台７６の矢印Ｂ２方向の面７６ｂに設けられ、折り曲げ機構３０を矢印Ｃ方向に沿って移動させるためのものである。第２移動機構２８は、第２駆動機構１０２と第２案内機構１０４とを有する。第２駆動機構１０２は、ボールねじ機構として構成されており、矢印Ｃ方向に沿って延在した第２ねじ軸１０６と、折り曲げ機構３０に設けられて第２ねじ軸１０６に螺合する第２ナット１０８と、第２ナット１０８に設けられた複数の第２ボール１０９と、第２ねじ軸１０６を回転させるための第２モータ１１０とを含む。第２駆動機構１０２は、ボールねじ機構でなくてもよい。 As shown in FIG. 3, the second moving mechanism 28 is provided on the surface 76b of the base 76 of the pressing mechanism 26 in the direction of arrow B2, and is for moving the bending mechanism 30 along the direction of arrow C. The second moving mechanism 28 has a second drive mechanism 102 and a second guide mechanism 104. The second drive mechanism 102 is configured as a ball screw mechanism, and has a second screw shaft 106 extending along the direction of arrow C and a second screw shaft 106 provided in the bending mechanism 30 and screwed to the second screw shaft 106. It includes a nut 108, a plurality of second balls 109 provided on the second nut 108, and a second motor 110 for rotating the second screw shaft 106. The second drive mechanism 102 does not have to be a ball screw mechanism.

第２案内機構１０４は、折り曲げ機構３０を矢印Ｃ方向に沿って案内するためのものである。第２案内機構１０４は、矢印Ｃ方向に沿って延在した２本の第２レール１１２と、折り曲げ機構３０に設けられた２つの第２スライダ１１４とを含む（図３参照）。２本の第２レール１１２は、第２ねじ軸１０６の両側に互いに平行に設けられている。 The second guide mechanism 104 is for guiding the bending mechanism 30 along the direction of arrow C. The second guide mechanism 104 includes two second rails 112 extending along the direction of arrow C and two second sliders 114 provided on the bending mechanism 30 (see FIG. 3). The two second rails 112 are provided parallel to each other on both sides of the second screw shaft 106.

これら第２スライダ１１４は、各第２レール１１２に対して矢印Ｃ方向に沿って摺動可能に係合している。第２案内機構１０４において、第２レール１１２の本数及び第２スライダ１１４の個数は任意に設定可能である。 These second sliders 114 are slidably engaged with each second rail 112 along the direction of arrow C. In the second guide mechanism 104, the number of the second rail 112 and the number of the second sliders 114 can be arbitrarily set.

折り曲げ機構３０は、巻芯１４の巻回予定部３２に線材１２を巻回する際に、線材１２が巻回予定部３２の外面に沿って折り曲がるように線材１２における巻芯１４に接触する面とは反対側の外面を押さえるためのものである。折り曲げ機構３０は、ローラ支持部１１６、ローラ移動機構１１８、折り曲げローラ１２０及びローラ軸１２２を備える。ローラ支持部１１６は、支持本体１２４と２つの延出部１２６（図２参照）とを有する。支持本体１２４の底面１２４ａ（矢印Ｂ１方向の面）には、第２ナット１０８と第２スライダ１１４とが固着されている。各延出部１２６は、支持本体１２４から巻芯１４よりも矢印Ｂ２方向の位置まで矢印Ｂ方向に沿って延出している。２つの延出部１２６は、矢印Ａ方向に互いに離間して並んでいる（図１及び図２参照）。 When the wire rod 12 is wound around the scheduled winding portion 32 of the winding core 14, the bending mechanism 30 contacts the winding core 14 in the wire rod 12 so that the wire rod 12 bends along the outer surface of the scheduled winding portion 32. It is for pressing the outer surface on the opposite side to the surface. The bending mechanism 30 includes a roller support portion 116, a roller moving mechanism 118, a bending roller 120, and a roller shaft 122. The roller support portion 116 has a support body 124 and two extension portions 126 (see FIG. 2). The second nut 108 and the second slider 114 are fixed to the bottom surface 124a (the surface in the direction of the arrow B1) of the support main body 124. Each extending portion 126 extends from the support main body 124 to a position in the direction of arrow B2 from the winding core 14 along the direction of arrow B. The two extending portions 126 are arranged so as to be separated from each other in the direction of arrow A (see FIGS. 1 and 2).

ローラ移動機構１１８は、第２モータ１１０の駆動力によってローラ軸１２２を矢印Ｂ方向に移動させるためのものである。ローラ移動機構１１８は、第２ねじ軸１０６の回転と同期してローラ軸１２２を矢印Ｂ方向に移動させる。具体的には、ローラ移動機構１１８は、第２モータ１１０の駆動によって第２ねじ軸１０６が回転して折り曲げ機構３０が巻芯１４に近づく方向（矢印Ｃ１方向）に移動する場合には、ローラ軸１２２を矢印Ｂ１方向に移動させる。また、ローラ移動機構１１８は、第２モータ１１０の駆動によって第２ねじ軸１０６が回転して折り曲げ機構３０が巻芯１４から離れる方向（矢印Ｃ２方向）に移動する場合には、ローラ軸１２２を矢印Ｂ２方向に移動させる。 The roller moving mechanism 118 is for moving the roller shaft 122 in the direction of arrow B by the driving force of the second motor 110. The roller moving mechanism 118 moves the roller shaft 122 in the direction of arrow B in synchronization with the rotation of the second screw shaft 106. Specifically, when the second screw shaft 106 is rotated by the drive of the second motor 110 and the bending mechanism 30 moves in the direction approaching the winding core 14 (arrow C1 direction), the roller moving mechanism 118 is a roller. The axis 122 is moved in the direction of arrow B1. Further, when the second screw shaft 106 is rotated by the drive of the second motor 110 and the bending mechanism 30 moves in the direction away from the winding core 14 (arrow C2 direction), the roller moving mechanism 118 moves the roller shaft 122. Move in the direction of arrow B2.

折り曲げローラ１２０は、矢印Ａ方向に延在したローラ軸１２２に回転自在に設けられている。折り曲げローラ１２０の長さ寸法（矢印Ａ方向に沿った寸法）は、線材１２の矢印Ａ方向に沿った寸法及び巻芯１４に一度に巻き付ける線材１２の本数に応じて設定される。 The bending roller 120 is rotatably provided on a roller shaft 122 extending in the direction of arrow A. The length dimension of the bending roller 120 (dimension along the arrow A direction) is set according to the dimension along the arrow A direction of the wire rod 12 and the number of wire rods 12 wound around the winding core 14 at one time.

図１において、制御部３１は、第１モータ５８、第２モータ１１０及び巻芯駆動モータ９０の駆動を制御する。 In FIG. 1, the control unit 31 controls the drive of the first motor 58, the second motor 110, and the winding core drive motor 90.

次に、このように構成されたコイル成形装置１０を用いたコイル成形方法について説明する。 Next, a coil forming method using the coil forming apparatus 10 configured in this way will be described.

コイル成形方法では、まず、図４のステップＳ１において、準備工程を行う。準備工程では、図５Ａにおいて、まず、６本の長尺な線材１２（平角線）を準備し、各線材１２の幅方向が同じ方向に向くように６本の線材１２を互いに接触させた状態で一列に並べる。このとき、各線材１２は、厚さ方向を指向する側面が互いに接触する。 In the coil forming method, first, the preparation step is performed in step S1 of FIG. In the preparation step, in FIG. 5A, first, six long wire rods 12 (flat wires) are prepared, and the six wire rods 12 are brought into contact with each other so that the width directions of the wire rods 12 face the same direction. Line up in a row. At this time, the side surfaces of each wire rod 12 that points in the thickness direction come into contact with each other.

そして、図５Ｂに示すように、これら６本の線材１２の長手方向の中間部を折り返すことにより、６本の線材１２を逆Ｖ字状に形成する。その後、図５Ｃにおいて、６本の線材１２の一端側の部分１３０ａと６本の線材１２の他端側の部分１３０ｂとが線材１２の幅方向に隣接するように、折り返し端部１３２の近傍の部位を線材１２の並び方向（線材１２の幅方向）に屈曲する。これにより、６本の線材１２の一端側の部分１３０ａと６本の線材１２の他端側の部分１３０ｂとを合わせた１２本の線材１２が折り返し端部１３２から延在することとなる。１２本の線材１２は、その幅方向に隙間なく一列に並んでいる。なお、準備工程では、６本の線材１２を折り返して１２本にするのではなく、独立した１２本の線材１２を用意してもよい。 Then, as shown in FIG. 5B, the six wire rods 12 are formed in an inverted V shape by folding back the intermediate portion of these six wire rods 12 in the longitudinal direction. After that, in FIG. 5C, the portion 130a on one end side of the six wire rods 12 and the portion 130b on the other end side of the six wire rods 12 are adjacent to each other in the width direction of the wire rod 12 in the vicinity of the folded end portion 132. The portion is bent in the arrangement direction of the wire rod 12 (width direction of the wire rod 12). As a result, the twelve wire rods 12 including the portion 130a on one end side of the six wire rods 12 and the portion 130b on the other end side of the six wire rods 12 extend from the folded end portion 132. The twelve wire rods 12 are lined up in a row without a gap in the width direction thereof. In the preparatory step, instead of folding back the six wire rods 12 into twelve, 12 independent wire rods 12 may be prepared.

続いて、図４のステップＳ２において、巻回工程を行う。巻回工程では、初期状態で、線材１２の折り返し端部１３２が巻芯１４の一端部（矢印Ａ１方向の端部）に位置し、押さえ機構２６及び折り曲げ機構３０が巻芯１４の一端側に位置している。 Subsequently, in step S2 of FIG. 4, a winding step is performed. In the winding process, in the initial state, the folded end 132 of the wire rod 12 is located at one end of the winding core 14 (the end in the direction of arrow A1), and the pressing mechanism 26 and the bending mechanism 30 are located at one end side of the winding core 14. positioned.

巻回工程では、図６に示すように、準備工程で準備された１２本の線材１２を矢印Ｂ２方向に引っ張りながら巻芯１４の一端側（矢印Ａ１方向）から他端側（矢印Ａ２方向）に向けて巻回予定部３２に螺旋状に巻回する。つまり、１２本の線材１２を巻回予定部３２に一度に巻回する。 In the winding step, as shown in FIG. 6, the twelve wire rods 12 prepared in the preparation step are pulled in the direction of arrow B2 from one end side (arrow A1 direction) to the other end side (arrow A2 direction) of the winding core 14. The winding is spirally wound around the scheduled winding portion 32 toward the direction of. That is, the twelve wire rods 12 are wound around the scheduled winding portion 32 at one time.

具体的には、制御部３１は、巻芯駆動モータ９０を駆動させる。巻芯駆動モータ９０が駆動すると、巻芯駆動モータ９０の回転駆動力が動力伝達部９４を介して環状部６８に伝達されるため、環状部６８が回転するとともに環状部６８に固定された２つの押さえ部７０、７２によって支持されている巻芯１４（巻回予定部３２）がその軸線の周りに回転する。従って、矢印Ｂ２方向に引っ張られている線材１２が巻芯１４の巻回予定部３２に矢印Ａ２方向に向かって螺旋状に巻回される。 Specifically, the control unit 31 drives the winding core drive motor 90. When the winding core drive motor 90 is driven, the rotational driving force of the winding core drive motor 90 is transmitted to the annular portion 68 via the power transmission unit 94, so that the annular portion 68 rotates and is fixed to the annular portion 68. The winding core 14 (scheduled winding portion 32) supported by the holding portions 70 and 72 rotates around its axis. Therefore, the wire rod 12 pulled in the direction of arrow B2 is spirally wound around the scheduled winding portion 32 of the winding core 14 in the direction of arrow A2.

また、この際、制御部３１は、第１モータ５８を駆動させる。第１モータ５８が駆動すると、第１ねじ軸５４が回転するため、押さえ機構２６及び折り曲げ機構３０が巻芯１４に対して矢印Ａ２方向に移動する。これにより、線材１２を巻回予定部３２に巻回する際に、線材１２における巻回予定部３２に巻回された部位の巻回開始位置Ｐとは反対側（矢印Ａ２方向）の巻回端部１２ａと押さえ機構２６及び折り曲げ機構３０との矢印Ａ方向の位置関係が一定に保たれる。 At this time, the control unit 31 drives the first motor 58. When the first motor 58 is driven, the first screw shaft 54 rotates, so that the pressing mechanism 26 and the bending mechanism 30 move in the direction of arrow A2 with respect to the winding core 14. As a result, when the wire rod 12 is wound around the scheduled winding portion 32, the winding portion on the wire rod 12 is wound on the opposite side (arrow A2 direction) from the winding start position P of the portion wound around the scheduled winding portion 32. The positional relationship between the end portion 12a and the pressing mechanism 26 and the bending mechanism 30 in the direction of arrow A is kept constant.

従って、線材１２を巻回予定部３２に巻回する際に、押さえ部７０、７２の第１～第４ローラ８６ａ～８６ｄは、巻回予定部３２のうち、巻回端部１２ａの近傍（巻回端部１２ａよりも矢印Ａ２方向に若干ずれた位置）に接触する。そのため、線材１２の矢印Ｂ２方向の引張力Ｆによって巻芯１４が撓み変形することを抑えることができる。また、線材１２を巻芯１４に巻回する際に、折り曲げ機構３０の折り曲げローラ１２０は、矢印Ａ方向において巻回端部１２ａと同じ位置に位置する。 Therefore, when the wire rod 12 is wound around the scheduled winding portion 32, the first to fourth rollers 86a to 86d of the holding portions 70 and 72 are located in the vicinity of the winding end portion 12a of the scheduled winding portion 32. It comes into contact with the position slightly deviated from the winding end portion 12a in the direction of arrow A2). Therefore, it is possible to prevent the winding core 14 from bending and deforming due to the tensile force F in the direction of the arrow B2 of the wire rod 12. Further, when the wire rod 12 is wound around the winding core 14, the bending roller 120 of the bending mechanism 30 is located at the same position as the winding end portion 12a in the direction of arrow A.

さらに、この際、制御部３１は、第２モータ１１０を駆動させる。第２モータ１１０が駆動すると、第２ねじ軸１０６が回転するため、折り曲げローラ１２０は、巻回端部１２ａにおける巻回予定部３２に対向する面とは反対側の外面に接触するように、矢印Ｂ方向及び矢印Ｃ方向に移動する。 Further, at this time, the control unit 31 drives the second motor 110. When the second motor 110 is driven, the second screw shaft 106 rotates, so that the bending roller 120 comes into contact with the outer surface of the winding end portion 12a opposite to the surface facing the scheduled winding portion 32. It moves in the direction of arrow B and the direction of arrow C.

これにより、線材１２を巻回予定部３２に巻回する際に、巻回端部１２ａの外面が折り曲げローラ１２０に押されるため、巻回端部１２ａ（線材１２）を巻回予定部３２の外面形状に沿って精度よく折り曲げることができる。 As a result, when the wire rod 12 is wound around the scheduled winding portion 32, the outer surface of the winding end portion 12a is pushed by the bending roller 120, so that the winding end portion 12a (wire rod 12) is wound on the scheduled winding portion 32. It can be bent accurately along the outer surface shape.

そして、図７に示すように、巻回予定部３２の矢印Ｂ２方向の端部まで線材１２が巻回されることによって、コイル１３が成形されるに至る。 Then, as shown in FIG. 7, the wire rod 12 is wound up to the end of the scheduled winding portion 32 in the arrow B2 direction, whereby the coil 13 is formed.

次に、図８Ａ～図９Ｄを参照して巻回工程についてさらに詳細に説明する。図８Ａ及び図８Ｂに示すように、まず、巻芯１４の巻回予定部３２の第１湾曲面３２ｂが矢印Ｂ２方向に位置するとともに第２湾曲面３２ｄが矢印Ｂ１方向に位置した状態（以下、このときの巻芯１４の位置を「第１位置」という。）について説明する。 Next, the winding process will be described in more detail with reference to FIGS. 8A to 9D. As shown in FIGS. 8A and 8B, first, the first curved surface 32b of the scheduled winding portion 32 of the winding core 14 is located in the direction of arrow B2, and the second curved surface 32d is located in the direction of arrow B1 (hereinafter,). , The position of the winding core 14 at this time is referred to as “first position”).

図８Ａに示すように、巻芯１４の第１位置では、折り曲げローラ１２０は、巻回端部１２ａにおける巻回予定部３２の第１平面３２ａに対向する面とは反対側の外面を押さえる。これにより、巻回端部１２ａは、巻回予定部３２の第１平面３２ａの形状に沿って成形される。 As shown in FIG. 8A, at the first position of the winding core 14, the bending roller 120 presses the outer surface of the winding end portion 12a on the side opposite to the surface of the scheduled winding portion 32 facing the first plane 32a. As a result, the winding end portion 12a is formed along the shape of the first plane 32a of the planned winding portion 32.

このとき、線材１２は、矢印Ｂ２方向に引っ張られているため、図８Ｂに示すように、巻回予定部３２には矢印Ｂ２方向に沿った引張力Ｆが作用する。しかしながら、巻回予定部３２に作用した引張力Ｆは、第１ローラ８６ａ及び第２ローラ８６ｂによって受けられる。そのため、巻回予定部３２の矢印Ｂ２方向の撓み変形を抑えることができる。 At this time, since the wire rod 12 is pulled in the direction of arrow B2, as shown in FIG. 8B, a tensile force F along the direction of arrow B2 acts on the planned winding portion 32. However, the tensile force F acting on the scheduled winding portion 32 is received by the first roller 86a and the second roller 86b. Therefore, it is possible to suppress the bending deformation of the scheduled winding portion 32 in the arrow B2 direction.

続いて、図８Ｃ及び図８Ｄに示すように、巻芯１４が第１位置から矢印Ｒ方向に９０°回転すると（以下、このときの巻芯１４の位置を「第２位置」という。）、第１湾曲面３２ｂが矢印Ｃ２方向に位置するとともに第２湾曲面３２ｄが矢印Ｃ１方向に位置する。 Subsequently, as shown in FIGS. 8C and 8D, when the winding core 14 rotates 90 ° in the arrow R direction from the first position (hereinafter, the position of the winding core 14 at this time is referred to as a “second position”). The first curved surface 32b is located in the direction of arrow C2, and the second curved surface 32d is located in the direction of arrow C1.

図８Ｃに示すように、巻芯１４の第２位置では、折り曲げローラ１２０は、巻回端部１２ａにおける巻回予定部３２の第１湾曲面３２ｂに対向する面とは反対側の外面を押さえる。これにより、巻回端部１２ａは、巻回予定部３２の第１湾曲面３２ｂの形状に沿って成形される。 As shown in FIG. 8C, at the second position of the winding core 14, the bending roller 120 presses the outer surface of the winding end portion 12a on the side opposite to the surface facing the first curved surface 32b of the scheduled winding portion 32. .. As a result, the winding end portion 12a is formed along the shape of the first curved surface 32b of the planned winding portion 32.

このとき、線材１２は、矢印Ｂ２方向に引っ張られているため、図８Ｄに示すように、巻回予定部３２には矢印Ｂ２方向に沿った引張力Ｆが作用する。しかしながら、巻回予定部３２に作用する引張力Ｆは、第２ローラ８６ｂ及び第４ローラ８６ｄによって受けられる。そのため、巻回予定部３２の矢印Ｂ２方向の撓み変形を抑えることができる。 At this time, since the wire rod 12 is pulled in the direction of arrow B2, as shown in FIG. 8D, a tensile force F along the direction of arrow B2 acts on the planned winding portion 32. However, the tensile force F acting on the scheduled winding portion 32 is received by the second roller 86b and the fourth roller 86d. Therefore, it is possible to suppress the bending deformation of the scheduled winding portion 32 in the arrow B2 direction.

その後、図９Ａ及び図９Ｂに示すように、第１位置から矢印Ｒ方向に１８０°（第２位置から矢印Ｒ方向に９０°）回転すると、（以下、このときの巻芯１４の位置を「第３位置」という。）、第１湾曲面３２ｂが矢印Ｂ１方向に位置するとともに第２湾曲面３２ｄが矢印Ｂ２方向に位置する。 After that, as shown in FIGS. 9A and 9B, when the rotation is performed by 180 ° in the arrow R direction from the first position (90 ° in the arrow R direction from the second position) (hereinafter, the position of the winding core 14 at this time is changed to ". The first curved surface 32b is located in the direction of arrow B1 and the second curved surface 32d is located in the direction of arrow B2.

図９Ａに示すように、巻芯１４の第３位置では、折り曲げローラ１２０は、巻回端部１２ａにおける巻回予定部３２の第２平面３２ｃに対向する面とは反対側の外面を押さえる。これにより、巻回端部１２ａは、巻回予定部３２の第２平面３２ｃの形状に沿って成形される。 As shown in FIG. 9A, at the third position of the winding core 14, the bending roller 120 presses the outer surface of the winding end portion 12a on the side opposite to the surface of the scheduled winding portion 32 facing the second plane 32c. As a result, the winding end portion 12a is formed along the shape of the second plane 32c of the planned winding portion 32.

このとき、線材１２は、矢印Ｂ２方向に引っ張られているため、図９Ｂに示すように、巻回予定部３２には矢印Ｂ２方向に沿った引張力Ｆが作用する。しかしながら、巻回予定部３２に作用した引張力Ｆは、第３ローラ８６ｃ及び第４ローラ８６ｄによって受けられる。そのため、巻回予定部３２の矢印Ｂ２方向の撓み変形を抑えることができる。 At this time, since the wire rod 12 is pulled in the direction of arrow B2, as shown in FIG. 9B, a tensile force F along the direction of arrow B2 acts on the planned winding portion 32. However, the tensile force F acting on the scheduled winding portion 32 is received by the third roller 86c and the fourth roller 86d. Therefore, it is possible to suppress the bending deformation of the scheduled winding portion 32 in the arrow B2 direction.

次いで、図９Ｃ及び図９Ｄに示すように、巻芯１４が第１位置から矢印Ｒ方向に２７０°（第３位置から矢印Ｒ方向に９０°）回転すると（以下、このときの巻芯１４の位置を「第４位置」という。）、第１湾曲面３２ｂが矢印Ｃ１方向に位置するとともに第２湾曲面３２ｄが矢印Ｃ２方向に位置する。
Then, as shown in FIGS. 9C and 9D, when the winding core 14 rotates 270 ° in the arrow R direction from the first position (90 ° in the arrow R direction from the third position) (hereinafter, the winding core 14 at this time). The position is referred to as "fourth position"), the first curved surface 32b is located in the direction of arrow C1, and the second curved surface 32d is located in the direction of arrow C2.

図９Ｃに示すように、巻芯１４の第４位置では、折り曲げローラ１２０は、巻回端部１２ａにおける巻回予定部３２の第２湾曲面３２ｄに対向する面とは反対側の外面を押さえる。これにより、巻回端部１２ａは、巻回予定部３２の第２湾曲面３２ｄの形状に沿って成形される。 As shown in FIG. 9C, at the fourth position of the winding core 14, the bending roller 120 presses the outer surface of the winding end portion 12a on the side opposite to the surface facing the second curved surface 32d of the scheduled winding portion 32. .. As a result, the winding end portion 12a is formed along the shape of the second curved surface 32d of the winding scheduled portion 32.

このとき、線材１２は、矢印Ｂ２方向に引っ張られているため、図９Ｄに示すように、巻回予定部３２には矢印Ｂ２方向に沿った引張力Ｆが作用する。しかしながら、巻回予定部３２に作用する引張力Ｆは、第１ローラ８６ａ及び第４ローラ８６ｄによって受けられる。そのため、巻回予定部３２の矢印Ｂ２方向の撓み変形を抑えることができる。 At this time, since the wire rod 12 is pulled in the direction of arrow B2, as shown in FIG. 9D, a tensile force F along the direction of arrow B2 acts on the planned winding portion 32. However, the tensile force F acting on the scheduled winding portion 32 is received by the first roller 86a and the fourth roller 86d. Therefore, it is possible to suppress the bending deformation of the scheduled winding portion 32 in the arrow B2 direction.

この場合、本実施形態に係るコイル成形方法及びコイル成形装置１０は、以下の効果を奏する。 In this case, the coil forming method and the coil forming apparatus 10 according to the present embodiment have the following effects.

コイル成形方法において、巻回予定部３２に線材１２を巻回する際に、巻回予定部３２を押さえ機構２６で押さえることによって、線材１２から巻回予定部３２に作用する引張力Ｆを押さえ機構２６によって受ける。コイル成形装置１０は、巻芯１４と、巻回予定部３２に線材１２を巻回する際に、巻回予定部３２を押さえることによって、線材１２から巻回予定部３２に作用する引張力Ｆを受ける押さえ機構２６と、を備える。 In the coil forming method, when the wire rod 12 is wound around the scheduled winding portion 32, the planned winding portion 32 is pressed by the pressing mechanism 26 to suppress the tensile force F acting on the scheduled winding portion 32 from the wire rod 12. Received by mechanism 26. In the coil forming apparatus 10, when the wire rod 12 is wound around the winding core 14 and the scheduled winding portion 32, the tensile force F acting from the wire rod 12 to the scheduled winding portion 32 by pressing the scheduled winding portion 32. A holding mechanism 26 for receiving is provided.

これにより、線材１２から巻回予定部３２に作用する引張力Ｆを押さえ機構２６によって受けることができるため、巻回予定部３２に線材１２を巻回する際に巻回予定部３２が撓み変形することを抑えることができる。よって、巻回予定部３２に対して線材１２を精度よく巻回することができる。 As a result, the tensile force F acting on the scheduled winding portion 32 from the wire rod 12 can be received by the pressing mechanism 26, so that the scheduled winding portion 32 bends and deforms when the wire rod 12 is wound around the scheduled winding portion 32. It can be suppressed. Therefore, the wire rod 12 can be accurately wound around the scheduled winding portion 32.

コイル成形方法において、巻回予定部３２に線材１２を巻回する際に、巻回予定部３２のうち、線材１２における巻回予定部３２に巻回された部位の巻回開始位置Ｐとは反対側の巻回端部１２ａの近傍を押さえ機構２６で押さえる。押さえ機構２６は、巻回予定部３２に線材１２を巻回する際に、巻芯１４のうち、線材１２における巻回予定部３２に巻回された部位の巻回開始位置Ｐとは反対側の巻回端部１２ａの近傍を押さえる。 In the coil forming method, when the wire rod 12 is wound around the scheduled winding portion 32, what is the winding start position P of the portion of the scheduled winding portion 32 wound around the scheduled winding portion 32 in the wire rod 12? The vicinity of the winding end portion 12a on the opposite side is pressed by the pressing mechanism 26. When the wire rod 12 is wound around the scheduled winding portion 32, the pressing mechanism 26 is on the side opposite to the winding start position P of the portion of the winding core 14 wound around the scheduled winding portion 32 of the wire rod 12. Press the vicinity of the winding end portion 12a of.

これにより、巻回予定部３２の撓み変形を効果的に抑えることができる。 As a result, the bending deformation of the scheduled winding portion 32 can be effectively suppressed.

コイル成形方法において、巻芯１４の軸線の周りに巻芯１４を回転させながら線材１２を巻回予定部３２に巻回させる。 In the coil forming method, the wire rod 12 is wound around the scheduled winding portion 32 while rotating the winding core 14 around the axis of the winding core 14.

これにより、簡易な構成によりコイル１３を容易に成形することができる。 As a result, the coil 13 can be easily molded with a simple configuration.

コイル成形方法において、巻回予定部３２に線材１２を巻回する際に、押さえ機構２６によって巻芯１４を回転させる。押さえ機構２６は、巻芯１４の軸線の周りに巻芯１４を回転させる。 In the coil forming method, when the wire rod 12 is wound around the scheduled winding portion 32, the winding core 14 is rotated by the pressing mechanism 26. The pressing mechanism 26 rotates the winding core 14 around the axis of the winding core 14.

ところで、巻芯１４の端部を回転させた場合、巻回予定部３２のうち押さえ機構２６が接触している部分に捩じれが発生する可能性がある。しかしながら、押さえ機構２６によって巻芯１４を回転させるため、巻回予定部３２のうち押さえ機構２６が接触している部分に捩じれが発生することを抑えることができる。 By the way, when the end portion of the winding core 14 is rotated, there is a possibility that twisting may occur in the portion of the scheduled winding portion 32 in which the pressing mechanism 26 is in contact. However, since the winding core 14 is rotated by the pressing mechanism 26, it is possible to prevent twisting from occurring in the portion of the scheduled winding portion 32 in which the pressing mechanism 26 is in contact.

コイル成形方法において、巻回予定部３２に線材１２を巻回する際に、押さえ機構２６を巻芯１４に対して巻芯１４の軸線方向に沿って移動させる。押さえ機構２６を巻芯１４の軸線方向に沿って巻芯１４に対して移動させる移動機構（第１移動機構２４）が設けられている。 In the coil forming method, when the wire rod 12 is wound around the scheduled winding portion 32, the pressing mechanism 26 is moved with respect to the winding core 14 along the axial direction of the winding core 14. A moving mechanism (first moving mechanism 24) for moving the pressing mechanism 26 with respect to the winding core 14 along the axial direction of the winding core 14 is provided.

これにより、巻回予定部３２に線材１２を巻回する際に押さえ機構２６によって巻回予定部３２の撓み変形を効率的に抑えることができる。 As a result, when the wire rod 12 is wound around the scheduled winding portion 32, the bending deformation of the scheduled winding portion 32 can be efficiently suppressed by the pressing mechanism 26.

コイル成形方法において、巻回予定部３２に線材１２を巻回する際に、線材１２における巻回予定部３２に対向する面とは反対側の面を折り曲げ機構３０によって押さえることにより、線材１２を巻芯１４の外面に沿って折り曲げる。コイル成形装置１０は、巻回予定部３２に線材１２を巻回する際に、線材１２が巻回予定部３２の外面に沿って折り曲がるように線材１２における巻回予定部３２に対向する面とは反対側の外面を押さえる折り曲げ機構３０を備える。 In the coil forming method, when the wire rod 12 is wound around the scheduled winding portion 32, the wire rod 12 is pressed by the bending mechanism 30 by pressing the surface of the wire rod 12 opposite to the surface facing the scheduled winding portion 32. Bend along the outer surface of the core 14. In the coil forming apparatus 10, when the wire rod 12 is wound around the scheduled winding portion 32, the surface of the wire rod 12 facing the scheduled winding portion 32 so that the wire rod 12 bends along the outer surface of the scheduled winding portion 32. It is provided with a bending mechanism 30 that presses the outer surface on the opposite side.

これにより、線材１２を巻回予定部３２の外面形状に沿って精度よく折り曲げることができる。 As a result, the wire rod 12 can be accurately bent along the outer surface shape of the planned winding portion 32.

押さえ機構２６は、巻回予定部３２の外周側に設けられた環状部６８と、巻回予定部３２に接触するように環状部６８に設けられた押さえ部７０と、環状部６８を巻芯１４の軸線の周りに回転させる回転駆動部７４と、を有する。 The pressing mechanism 26 has an annular portion 68 provided on the outer peripheral side of the scheduled winding portion 32, a pressing portion 70 provided on the annular portion 68 so as to come into contact with the scheduled winding portion 32, and a winding core of the annular portion 68. It has a rotation drive unit 74 that rotates around the axis of 14.

これにより、簡易な構成により押さえ機構２６によって巻芯１４を回転させることができる。 As a result, the winding core 14 can be rotated by the pressing mechanism 26 with a simple configuration.

押さえ部７０は、押さえ機構２６の巻芯１４に対する移動に伴って回転するローラ（第１～第４ローラ８６ａ～８６ｄ）を有する。 The pressing portion 70 has rollers (first to fourth rollers 86a to 86d) that rotate with the movement of the pressing mechanism 26 with respect to the winding core 14.

これにより、押さえ機構２６を巻芯１４に対して容易に移動させることができる。 As a result, the pressing mechanism 26 can be easily moved with respect to the winding core 14.

本発明は、巻芯１４をその軸線周りに回転させず、線材１２を引っ張りながら巻芯１４の巻回予定部３２に螺旋状に周回させながら巻回してもよい。また、折り曲げ機構３０は、押さえ機構２６に設けられていなくてもよい。この場合、折り曲げ機構３０を巻芯１４の軸線方向に沿って移動させる移動機構が設けられる。 In the present invention, the winding core 14 may be wound while being spirally wound around the scheduled winding portion 32 of the winding core 14 while pulling the wire rod 12 without rotating the winding core 14 around its axis. Further, the bending mechanism 30 may not be provided in the pressing mechanism 26. In this case, a moving mechanism for moving the bending mechanism 30 along the axial direction of the winding core 14 is provided.

本発明に係るコイル成形方法及びコイル成形装置は、上述の実施形態に限らず、本発明の要旨を逸脱することなく、種々の構成を採り得ることはもちろんである。 It goes without saying that the coil forming method and the coil forming apparatus according to the present invention are not limited to the above-described embodiments, and various configurations can be adopted without departing from the gist of the present invention.

１０…コイル成形装置 １２…線材
１２ａ…巻回端部 １３…コイル
１４…巻芯 ２４…第１移動機構（移動機構）
２６…押さえ機構 ３０…折り曲げ機構
３２…巻回予定部 ６８…環状部
７０、７２…押さえ部 ７４…回転駆動部
８６ａ…第１ローラ ８６ｂ…第２ローラ
８６ｃ…第３ローラ ８６ｄ…第４ローラ 10 ... Coil forming device 12 ... Wire rod 12a ... Winding end 13 ... Coil 14 ... Winding core 24 ... First moving mechanism (moving mechanism)
26 ... Holding mechanism 30 ... Bending mechanism 32 ... Scheduled winding part 68 ... Circular part 70, 72 ... Holding part 74 ... Rotational drive part 86a ... First roller 86b ... Second roller 86c ... Third roller 86d ... Fourth roller

Claims (11)

一方向に延在した巻芯の巻回予定部に線材を引っ張りながら螺旋状に巻回することによってコイルを成形するコイル成形方法であって、
前記巻回予定部に前記線材を巻回する際に、前記巻回予定部を押さえ機構で押さえることによって、前記線材から前記巻回予定部に作用する引張力を前記押さえ機構によって受け、且つ、前記巻回予定部に前記線材を巻回する際に、前記押さえ機構を前記巻芯に対して前記巻芯の軸線方向に沿って移動させる、コイル成形方法。 A coil forming method in which a coil is formed by spirally winding a wire while pulling a wire around a winding core extending in one direction.
When the wire rod is wound around the scheduled winding portion, the scheduled winding portion is pressed by the pressing mechanism, so that the tensile force acting on the scheduled winding portion from the wire rod is received by the pressing mechanism , and A coil forming method in which, when winding the wire rod around the scheduled winding portion, the holding mechanism is moved with respect to the winding core along the axial direction of the winding core . 請求項１記載のコイル成形方法であって、
前記巻回予定部に前記線材を巻回する際に、前記巻回予定部のうち、前記線材における前記巻回予定部に巻回された部位の巻回開始位置とは反対側の巻回端部の近傍を前記押さえ機構で押さえる、コイル成形方法。 The coil molding method according to claim 1.
When the wire rod is wound around the scheduled winding portion, the winding end of the scheduled winding portion opposite to the winding start position of the portion of the wire rod wound around the scheduled winding portion. A coil forming method in which the vicinity of a portion is pressed by the pressing mechanism. 請求項１又は２に記載のコイル成形方法であって、
前記巻芯の軸線の周りに前記巻芯を回転させながら前記線材を前記巻回予定部に巻回させる、コイル成形方法。 The coil molding method according to claim 1 or 2.
A coil forming method in which the wire rod is wound around the scheduled winding portion while rotating the winding core around the axis of the winding core. 請求項３記載のコイル成形方法であって、
前記巻回予定部に前記線材を巻回する際に、前記押さえ機構によって前記巻芯を回転させる、コイル成形方法。 The coil molding method according to claim 3.
A coil forming method in which the winding core is rotated by the holding mechanism when the wire rod is wound around the scheduled winding portion. 請求項１～４のいずれか１項に記載のコイル成形方法であって、
前記巻回予定部に前記線材を巻回する際に、前記線材における前記巻回予定部に対向する面とは反対側の面を折り曲げ機構によって押さえることにより、前記線材を前記巻芯の外面に沿って折り曲げる、コイル成形方法。 The coil molding method according to any one of claims 1 to 4 .
When the wire rod is wound around the scheduled winding portion, the surface of the wire rod opposite to the surface facing the scheduled winding portion is pressed by a bending mechanism, so that the wire rod is attached to the outer surface of the winding core. A coil forming method that bends along. 一方向に延在した巻芯の巻回予定部に線材を引っ張りながら螺旋状に巻回することによってコイルを成形するコイル成形装置であって、
前記巻芯と、
前記巻回予定部に前記線材を巻回する際に、前記巻回予定部を押さえることによって、前記線材から前記巻回予定部に作用する引張力を受ける押さえ機構と、
前記押さえ機構を前記巻芯の軸線方向に沿って前記巻芯に対して移動させる移動機構と、を備える、コイル成形装置。 A coil forming device that forms a coil by spirally winding a wire while pulling a wire around a winding core extending in one direction.
With the core
A pressing mechanism that receives a tensile force acting on the scheduled winding portion from the wire rod by pressing the scheduled winding portion when the wire rod is wound around the scheduled winding portion.
A coil forming apparatus comprising a moving mechanism for moving the holding mechanism with respect to the winding core along the axial direction of the winding core . 請求項６記載のコイル成形装置であって、
前記押さえ機構は、前記巻回予定部に前記線材を巻回する際に、前記巻芯のうち、前記線材における前記巻回予定部に巻回された部位の巻回開始位置とは反対側の巻回端部の近傍を押さえる、コイル成形装置。 The coil forming apparatus according to claim 6 .
When the wire rod is wound around the scheduled winding portion, the holding mechanism is located on the side opposite to the winding start position of the winding core of the wire rod, which is wound around the scheduled winding portion. A coil forming device that presses the vicinity of the winding end. 請求項６又は７に記載のコイル成形装置であって、
前記押さえ機構は、前記巻芯の軸線の周りに前記巻芯を回転させる、コイル成形装置。 The coil forming apparatus according to claim 6 or 7 .
The holding mechanism is a coil forming apparatus that rotates the winding core around the axis of the winding core. 請求項８記載のコイル成形装置であって、
前記押さえ機構は、
前記巻回予定部の外周側に設けられた環状部と、
前記巻回予定部に接触するように前記環状部に設けられた押さえ部と、
前記環状部を前記巻芯の軸線の周りに回転させる回転駆動部と、を有する、コイル成形装置。 The coil forming apparatus according to claim 8 .
The holding mechanism is
An annular portion provided on the outer peripheral side of the planned winding portion and an annular portion.
A holding portion provided on the annular portion so as to come into contact with the scheduled winding portion, and a pressing portion.
A coil forming apparatus having a rotation driving unit for rotating the annular portion around the axis of the winding core. 請求項９記載のコイル成形装置であって、
前記押さえ部は、前記押さえ機構の前記巻芯に対する移動に伴って回転するローラを有する、コイル成形装置。 The coil forming apparatus according to claim 9 .
The holding portion is a coil forming apparatus having a roller that rotates as the holding mechanism moves with respect to the winding core. 請求項６～１０のいずれか１項に記載のコイル成形装置であって、
前記巻回予定部に前記線材を巻回する際に、前記線材が前記巻回予定部の外面に沿って折り曲がるように前記線材における前記巻回予定部に対向する面とは反対側の外面を押さえる折り曲げ機構を備える、コイル成形装置。 The coil forming apparatus according to any one of claims 6 to 10 .
When the wire rod is wound around the scheduled winding portion, the outer surface of the wire rod opposite to the surface facing the scheduled winding portion so that the wire rod bends along the outer surface of the scheduled winding portion. A coil forming device equipped with a bending mechanism that holds down.
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