JPS6240942B2 - - Google Patents
Info
- Publication number
- JPS6240942B2 JPS6240942B2 JP24917384A JP24917384A JPS6240942B2 JP S6240942 B2 JPS6240942 B2 JP S6240942B2 JP 24917384 A JP24917384 A JP 24917384A JP 24917384 A JP24917384 A JP 24917384A JP S6240942 B2 JPS6240942 B2 JP S6240942B2
- Authority
- JP
- Japan
- Prior art keywords
- coil
- stator core
- forming
- coil end
- stator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000000034 method Methods 0.000 claims description 12
- 238000000465 moulding Methods 0.000 description 11
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 8
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 5
- 239000012212 insulator Substances 0.000 description 4
- 238000007796 conventional method Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
Classifications
-
- 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
- H02K15/0025—Shaping or compacting conductors or winding heads after the installation of the winding in the core or machine ; Applying fastening means on winding heads
- H02K15/0037—Shaping or compacting winding heads
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Manufacture Of Motors, Generators (AREA)
Description
【発明の詳細な説明】
［発明の目的］
（産業上の利用分野）
この発明は回転電機の固定子鉄心の両端部に表
出するコイルエンドを内側からそれぞれ押広げて
一定の開き形状にする固定子コイルの成形方法に
関する。
（従来の技術）
従来の成形方法では固定子鉄心の両端部に表出
する各コイルエンドを両方同時に成形するのが一
般的である。第１図および第２図は従来方法およ
びその方法を実施する装置を示すものである。つ
まり、先端を砲弾状ガイド１にした固定子鉄心被
嵌用の案内筒２にコイルエンド拡径用の拡張部材
３ａ，３ｂを１対間隔的に取付け、その案内筒２
に後端から挿入したピストン４のロツドの進退動
作によつて各拡張部材３ａ，３ｂを１対のテーパ
コーン５ａ，５ｂを介して内側から同時に係合部
材６ａ，６ｂを介して拡縮するようにする。この
ようなコイル成形治具７をヘツド８の一端に固定
しておき、ベツド８の他端から一端側に摺動する
コア受台９で固定子鉄心１０をコイル成形治具７
の各拡張部材３ａ，３ｂに各コイルエンド１１
ａ，１１ｂが被嵌する位置まで運ぶようにする。
そして、各コイルエンド１１ａ，１１ｂが各拡張
部材３ａ，３ｂに被嵌した状態で所定のシリンダ
機構を介してピストン４のロツドを前進させ、テ
ーパコーン５ａ，５ｂを介して拡径動作する各拡
張部材３ａ，３ｂによつて各コイルエンド１１
ａ，１１ｂを同時に押拡げて一定の開き形状にす
るものである。
（発明が解決しようとする問題点）
このような従来の方法では第３図の二点鎖線で
示すように、固定子鉄心１０の内径より小さい拡
張部材３ｂがテーパコーン５ａ，５ｂの作動によ
り実線（斜線を入れてある部分）で示した位置ま
で放射状に拡張しコイルエンド１１ｂを固定子鉄
心１０の外径方向へ押し拡げる。
この時、固定子鉄心１０のスロツト部２３の出
口におけるマグネツトワイヤ２５へは張力が働き
固定子鉄心１０の歯頭２４へはその分力が作用す
る。すると、第４図に示すように歯頭２４が引張
られて曲げられ、固定子鉄心１０の端面よりずれ
た歯頭２４ａになる。
そのために、スロツト絶縁物３２が固定子鉄心
１０の端面で切れることがあり、コイルに傷がつ
き耐圧不良の原因となつていた。さらには固定子
鉄心１０のずれた歯頭２４ａにより、次相コイル
の挿入の為に挿入治具への固定子鉄心１０の挿入
が不可能となるなどの問題がある。
この発明はそのような問題を解決するためにな
されたもので、コイルエンド成形時の固定子鉄心
の歯頭のずれを防止する固定子コイルの成形方法
を提供することを目的とする。
［発明の構成］
（問題点を解決するための手段）
本発明は回転電機の固定子鉄心の両端部に表出
するコイルエンドを、内側からコイル成形治具に
よつて押し拡げて一定の開き形状にする固定子コ
イルの成形方法において、前記固定子鉄心を案内
する案内筒に前記固定子鉄心の歯頭相互に形成さ
れるスロツトの開口部の幅とほぼ同一の複数個の
突起を形成し、この突起を歯頭間に噛合させるこ
とにより前記固定子鉄心の歯頭が周方向にずれる
のを防止しながら前記コイルエンドを交互に拡張
部材で拡開形成することを特徴とする固定子コイ
ルの成形方法に関する。
（作 用）
このような成形方法によるので、コイルエンド
の拡開成形時にスロツト部の開口部は案内筒に突
設した突起が歯頭間に噛合しており、歯頭がマグ
ネツトワイヤの張力により引張られて曲げられた
り固定子鉄心の端面よりずれた歯頭にならず、ス
ロツト絶縁物の破損やコイルへの損傷が防止され
次相コイルの挿入が正常に行われる。
（実施例）
以下、この発明の一実施例を第５図乃至第８図
を参照して説明する。
まず、本発明方法を実施する装置を説明する。
ベツド１２の一端に取付け基板１３を介して横向
きに突設した案内筒１４に軸心と平行に複数条形
成したガイド溝１５に沿わせて、成形ガイド１６
を摺動及び任意の位置で停止可能に取付けてい
る。この成形ガイド１６は成形終了後のコイルエ
ンド内面形状に合致する外面形状をなす環状で、
その後端からフランジ状にストツパ部１７を突設
している。また、案内筒１４の先端部で砲弾状ガ
イド１８の後側に配置して１組だけ拡張部材１９
を設け、この拡張部材１９を案内筒１４の後部か
ら挿入したピストン２０のロツドに設けたテーパ
コーン３１によつて内側から拡縮動作するように
している。この案内筒１４の外周面に、複数の突
起２１を歯車に類似する形状で一体的に突設し、
この突起２１を固定子鉄心２２のスロツト部２３
の歯頭２４間で、マグネツトワイヤ２５の保持用
ウエツジ２６に当接しない浅い状態で噛合させる
ようにしている。また突起２１の幅はスロツト部
２３の開口部３３の幅と略同一で、この案内筒１
４に被嵌する固定子鉄心２２の周方向への位置ず
れ防止を図つている。このようなコイル成形治具
２７に固定子鉄心２２を運ぶコア受台２８は、摺
動機構部２９を介してベツド１２に２段停止動作
できるようにしている。つまり、このコア受台２
８は、保持した固定子鉄心２２のコイル成形治具
２７側のコイルエンド３０ａが拡張部材１９に被
嵌する第１成形位置（第６図）で一旦停止できる
と共に、これよりも進行して反対側のコイルエン
ド３０ｂが拡張部材１９に被嵌する第２成形位置
（第７図）でも停止できるようにしている。そし
て前記成形ガイド１６を予め第２成形位置に来た
固定子鉄心２２の治具対向側のコイルエンド３０
ａがストツパ部１７で衝止できる位置に位置決め
しておき、このコイルエンド３０ａを被嵌状態に
して固定するようにしている。
次に本発明の成形方法を説明する。準備位置に
あるコア受台２８に固定子鉄心２２を例えばリー
ド線側のコイルエンド３０ａをコイル成形治具２
７に対向させて保持する（第５図）。そして、ま
ずコア受台２８を第１成形位置まで摺動させて、
リード線側のコイルエンド３０ａを拡張部材１９
に被嵌させ、ピストン２０のロツド及びテーパコ
ーン３１を介して拡張部材１９を拡径動作させる
ことによつてリード線側コイルエンド３０ａを所
定の開き形状に成形する（第６図）。この時、固
定子鉄心２２のリード線側のスロツト部２３の開
口部３３は第８図に示すように突起２１を歯頭２
４間に噛合している。その後拡張部材１９を縮径
動作させ、コア受台２８を第２成形位置まで摺動
させる。つまり、先に成形したリード線側のコイ
ルエンド３０ａを案内筒１４の基端側の成形ガイ
ド１６に被嵌状態にすると共に、そのコイルエン
ド３０ａの先端部を成形ガイド１６のストツパ部
１７に当接する状態で固定する。そして、新たに
反リード線側のコイルエンド３０ｂを拡張部材１
９に被嵌させ、この拡張部材１９を再び拡径動作
することにより、反リード線側のコイルエンド３
０ｂも所定の開き形状に形成するものである（第
７図）。
この時もまた、固定子鉄心２２の反リード線側
のスロツト部２３の開口部３３は、第８図に示す
ように突起２１を歯頭２４間に噛合している。
このような成形方法によると、案内筒１４の外
周面に複数からなる突起２１を歯車に類似する形
状で一体的に突設し、この突起２１を固定子鉄心
２２のスロツト部２３の保持用ウエツジ２６に当
接しない浅い状態で、且つ突起２１がスロツト部
２３の開口部３３に埋設させて噛合させ、各コイ
ルエンド３０ａ，３０ｂを成形する。よつて、ス
ロツト部２３の出口におけるマグネツトワイヤ２
５への張力が固定子鉄心２２の歯頭２４へ分力と
して作用し、その歯頭２４が周方向にずれる方向
に移動しても、これを突起２１と歯頭２４間の噛
合によつて防止できるものである。このため、歯
頭２４がマグネツトワイヤ２５の張力により引張
られて曲げられたり或いは固定子鉄心１０の端面
よりずれた歯頭２４にならず、スロツト絶縁物３
２の破損やコイルへの損傷が防止され次相コイル
の挿入が正常に行なわれる。尚、この突起２１を
歯頭２４間に噛合させるために固定子鉄心２２或
いはコア受台２８に位置決め装置を設けておくの
は勿論である。
［発明の効果］
以上のように本発明によれば、コイルエンドの
拡開成形時にスロツト部の開口部は案内筒に突設
した突起が歯頭間に噛合しており、歯頭がマグネ
ツトワイヤの張力により引張られて曲げられたり
或いは固定子鉄心の端面よりずれた歯頭になら
ず、スロツト絶縁物の破損やコイルへの損傷が防
止され次相コイルの挿入が正常に行なわれる。 [Detailed Description of the Invention] [Objective of the Invention] (Industrial Application Field) This invention expands the coil ends exposed at both ends of the stator core of a rotating electric machine from the inside to form a fixed open shape. This invention relates to a method of forming a stator coil. (Prior Art) In conventional forming methods, it is common to simultaneously form each coil end exposed at both ends of a stator core. 1 and 2 illustrate a conventional method and an apparatus for carrying out the method. That is, a pair of expansion members 3a and 3b for expanding the diameter of the coil end are attached at intervals to a guide tube 2 for fitting the stator core, which has a bullet-shaped guide 1 at the tip, and the guide tube 2
By advancing and retracting the rod of the piston 4 inserted from the rear end, the expansion members 3a and 3b are simultaneously expanded and contracted from the inside through the pair of taper cones 5a and 5b and the engagement members 6a and 6b. . Such a coil forming jig 7 is fixed to one end of the head 8, and the stator core 10 is fixed to the coil forming jig 7 using a core holder 9 that slides from the other end of the bed 8 to one end.
Each coil end 11 is attached to each expansion member 3a, 3b of
Carry it to the position where a and 11b are fitted.
Then, with each coil end 11a, 11b fitted into each expansion member 3a, 3b, the rod of the piston 4 is advanced through a predetermined cylinder mechanism, and each expansion member is expanded in diameter through taper cones 5a, 5b. Each coil end 11 is connected by 3a and 3b.
A and 11b are expanded simultaneously to form a certain open shape. (Problems to be Solved by the Invention) In such a conventional method, as shown by the two-dot chain line in FIG. The coil end 11b is expanded radially to the position indicated by the shaded area), and the coil end 11b is pushed and expanded in the outer radial direction of the stator core 10. At this time, tension acts on the magnet wire 25 at the outlet of the slot portion 23 of the stator core 10, and a component of the tension acts on the tooth head 24 of the stator core 10. Then, as shown in FIG. 4, the tooth head 24 is pulled and bent, and becomes a tooth head 24a shifted from the end surface of the stator core 10. As a result, the slot insulator 32 may be cut at the end face of the stator core 10, causing damage to the coil and causing poor withstand voltage. Furthermore, the misaligned tooth head 24a of the stator core 10 makes it impossible to insert the stator core 10 into an insertion jig for inserting the next phase coil. The present invention was made to solve such problems, and an object of the present invention is to provide a method for forming a stator coil that prevents displacement of tooth heads of a stator core during coil end forming. [Structure of the Invention] (Means for Solving the Problems) The present invention aims to spread the coil ends exposed at both ends of the stator core of a rotating electric machine from the inside using a coil forming jig to form a fixed opening. In the method for forming a stator coil into a shape, a plurality of protrusions having a width approximately the same as the width of an opening of a slot formed between tooth heads of the stator core are formed on a guide tube for guiding the stator core. , a stator coil characterized in that the coil ends are alternately expanded with expansion members while preventing the tooth heads of the stator core from shifting in the circumferential direction by engaging the protrusions between the tooth heads. Concerning a molding method. (Function) With this forming method, when the coil end is expanded and formed, the opening of the slot part has a protrusion protruding from the guide tube that engages between the tooth heads, and the tooth heads absorb the tension of the magnet wire. This prevents the tooth head from being pulled and bent or shifted from the end face of the stator core, thereby preventing damage to the slot insulator and the coil, and allowing the next phase coil to be inserted normally. (Embodiment) An embodiment of the present invention will be described below with reference to FIGS. 5 to 8. First, an apparatus for carrying out the method of the present invention will be explained.
A molding guide 16 is formed along a plurality of guide grooves 15 formed parallel to the axis in a guide cylinder 14 which is provided at one end of the bed 12 to protrude sideways through a mounting board 13.
It is installed so that it can slide and be stopped at any position. The forming guide 16 is annular and has an outer surface that matches the inner surface shape of the coil end after forming.
A stopper portion 17 is provided projecting from the rear end in the shape of a flange. Further, only one set of expansion members 19 is disposed at the rear side of the bullet-shaped guide 18 at the tip of the guide tube 14.
The expansion member 19 is expanded and contracted from the inside by a taper cone 31 provided on the rod of the piston 20 inserted from the rear of the guide tube 14. A plurality of protrusions 21 are integrally provided on the outer peripheral surface of the guide tube 14 in a shape similar to a gear,
This protrusion 21 is inserted into the slot portion 23 of the stator core 22.
The tooth heads 24 of the magnet wires 25 and 25 are engaged with each other in a shallow state where they do not come into contact with the holding wedges 26 of the magnet wires 25. Further, the width of the protrusion 21 is approximately the same as the width of the opening 33 of the slot portion 23, and this guide tube 1
This is intended to prevent the stator core 22 fitted into the stator core 22 from shifting in the circumferential direction. Coil forming jig like this
The core pedestal 28 carrying the stator core 22 to the bed 12 can be stopped in two stages via a sliding mechanism 29. In other words, this core pedestal 2
8 is a coil forming jig for the held stator core 22
The coil end 30a on the 27 side can be temporarily stopped at the first forming position (FIG. 6) where it is fitted into the expansion member 19, and the coil end 30b on the opposite side can be further advanced from this position to the first forming position where the coil end 30b on the opposite side is fitted into the expansion member 19. It is also possible to stop at the second molding position (Fig. 7). Then, the coil end 30 of the stator core 22 on the side opposite to the jig which has brought the forming guide 16 to the second forming position in advance.
The coil end 30a is positioned at a position where it can be stopped by the stopper portion 17, and the coil end 30a is fixed in a fitted state. Next, the molding method of the present invention will be explained. Place the stator core 22 on the core holder 28 in the preparation position, for example, attach the coil end 30a on the lead wire side to the coil forming jig 2.
7 (Fig. 5). Then, first slide the core pedestal 28 to the first molding position,
Connect the coil end 30a on the lead wire side to the expansion member 19
By fitting the lead wire side coil end 30a into a predetermined open shape by expanding the diameter of the expansion member 19 via the rod of the piston 20 and the taper cone 31 (FIG. 6). At this time, the opening 33 of the slot portion 23 on the lead wire side of the stator core 22 connects the projection 21 to the tooth head 2 as shown in FIG.
4 are interlocked. Thereafter, the expansion member 19 is operated to reduce its diameter, and the core pedestal 28 is slid to the second molding position. That is, the coil end 30a on the lead wire side that was previously formed is fitted into the forming guide 16 on the proximal end side of the guide tube 14, and the tip of the coil end 30a is brought into contact with the stopper portion 17 of the forming guide 16. Fix it in contact. Then, newly attach the coil end 30b on the side opposite to the lead wire to the expansion member 1.
9 and expands the diameter of this expansion member 19 again, the coil end 3 on the side opposite to the lead wire
0b is also formed into a predetermined opening shape (FIG. 7). At this time as well, the opening 33 of the slot portion 23 on the side opposite to the lead wire of the stator core 22 engages the protrusion 21 between the tooth heads 24, as shown in FIG. According to such a forming method, a plurality of protrusions 21 are integrally provided on the outer peripheral surface of the guide tube 14 in a shape similar to a gear, and these protrusions 21 are inserted into the holding wedges of the slot portions 23 of the stator core 22. 26, and the protrusion 21 is buried in the opening 33 of the slot portion 23 and engaged with it to form each coil end 30a, 30b. Therefore, the magnet wire 2 at the outlet of the slot portion 23
5 acts as a component force on the tooth head 24 of the stator core 22, and even if the tooth head 24 moves in the circumferential direction, this can be prevented by the engagement between the protrusion 21 and the tooth head 24. It is preventable. Therefore, the tooth head 24 is not pulled and bent by the tension of the magnet wire 25, or the tooth head 24 is not shifted from the end surface of the stator core 10, and the slot insulator 3
2 and damage to the coil is prevented, and the next phase coil can be inserted normally. It goes without saying that a positioning device is provided on the stator core 22 or the core pedestal 28 in order to cause the protrusion 21 to engage between the tooth heads 24. [Effects of the Invention] As described above, according to the present invention, when the coil end is expanded and formed, the protrusion protruding from the guide tube engages between the tooth heads at the opening of the slot portion, and the tooth heads are connected to the magnet. The wire is not bent and bent by the tension of the wire, or the tooth head is not shifted from the end face of the stator core, and damage to the slot insulator and the coil is prevented, and the next phase coil can be inserted normally.
第１図乃至第４図は従来例を示すもので、第１
図は成形前の状態を示す要部正面図、第２図は成
形状態を示す要部断面図、第３図は第２図の−
線に沿つて切断した拡大部分断面図、第４図は
成形後の固定子鉄心を内径から見た展開図、第５
図乃至第８図はこの発明の一実施例を示すもの
で、第５図は成形前の状態を示す要部正面図、第
６図乃び第７図は成形状態を示す要部断面図、第
８図は第６図の−線拡大断面図である。
１４……案内筒、２１……突起、２２……固定
子鉄心、２７……コイル成形治具、３０ａ，３０
ｂ……コイルエンド、３３……開口部。
Figures 1 to 4 show conventional examples.
The figure is a front view of the main part showing the state before molding, Figure 2 is a sectional view of the main part showing the molding state, and Figure 3 is the -
Figure 4 is an enlarged partial sectional view cut along the line, Figure 4 is a developed view of the stator core after molding, viewed from the inner diameter, Figure 5
8 to 8 show one embodiment of the present invention, FIG. 5 is a front view of the main part showing the state before molding, FIGS. 6 and 7 are sectional views of the main part showing the state of molding, FIG. 8 is an enlarged sectional view taken along the - line in FIG. 6. 14... Guide tube, 21... Protrusion, 22... Stator core, 27 ... Coil forming jig, 30a, 30
b...Coil end, 33...Opening.
Claims (1)
イルエンドを、内側からコイル成形治具によつて
押し拡げて一定の開き形状にする固定子コイルの
成形方法において、前記固定子鉄心を案内する案
内筒に前記固定子鉄心の歯頭相互に形成されるス
ロツトの開口部の幅とほぼ同一の複数個の突起を
形成し、この突起を歯頭間に噛合させることによ
り前記固定子鉄心の歯頭が周方向にずれるのを防
止しながら前記コイルエンドを交互に拡張部材で
拡開形成することを特徴とする固定子コイルの成
形方法。1. A stator coil forming method in which coil ends exposed at both ends of a stator core of a rotating electric machine are pushed apart from the inside using a coil forming jig to form a fixed open shape, in which the stator core is guided. A plurality of protrusions approximately the same width as the opening of the slot formed between the tooth heads of the stator core are formed on the guide cylinder, and these protrusions are engaged between the tooth heads, whereby the stator core A method for forming a stator coil, characterized in that the coil ends are alternately expanded using expansion members while preventing the tooth heads from shifting in the circumferential direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24917384A JPS60144130A (en) | 1984-11-26 | 1984-11-26 | Forming method of stator coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24917384A JPS60144130A (en) | 1984-11-26 | 1984-11-26 | Forming method of stator coil |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3649178A Division JPS6016830B2 (en) | 1978-03-29 | 1978-03-29 | Stator coil forming method and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60144130A JPS60144130A (en) | 1985-07-30 |
| JPS6240942B2 true JPS6240942B2 (en) | 1987-08-31 |
Family
ID=17188992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24917384A Granted JPS60144130A (en) | 1984-11-26 | 1984-11-26 | Forming method of stator coil |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60144130A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3023994B1 (en) * | 2014-07-15 | 2016-07-15 | Valeo Equip Electr Moteur | METHOD FOR PRODUCING A ROTATING STATOR STATION OF ROTATING ELECTRIC MACHINE |
| CN105391248B (en) * | 2015-12-25 | 2018-06-26 | 江苏本格自动化科技有限公司 | A kind of stator extension fixture |
| AT520203B1 (en) * | 2017-09-01 | 2019-02-15 | Miba Ag | Method and device for the position holding a laminated core together with incorporated therein conductor elements |
-
1984
- 1984-11-26 JP JP24917384A patent/JPS60144130A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60144130A (en) | 1985-07-30 |
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