JPH06226435A - Brazing method and its device - Google Patents
Brazing method and its deviceInfo
- Publication number
- JPH06226435A JPH06226435A JP4058793A JP4058793A JPH06226435A JP H06226435 A JPH06226435 A JP H06226435A JP 4058793 A JP4058793 A JP 4058793A JP 4058793 A JP4058793 A JP 4058793A JP H06226435 A JPH06226435 A JP H06226435A
- Authority
- JP
- Japan
- Prior art keywords
- brazing
- heating coil
- work
- works
- insulator
- 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.)
- Granted
Links
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、例えばインダクショ
ンモータのステータコイルのリード部分のロウ付方法及
びその装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a brazing method and apparatus for a lead portion of a stator coil of an induction motor, for example.
【０００２】[0002]
【従来の技術】図３は例えば特開平４−１７２１７５に
示された従来の高周波ロウ付装置を示す斜視図、図４、
図５は図３の装置を用いてロウ付を行う一般的な方法の
２つの例を示す図である。図において、１は高周波加熱
電源であり、高周波ケーブル２によって高周波変換トラ
ンス３に電源が供給される。４は高周波変換トランス３
の先端に取付けられた、銅製パイプでなる加熱コイル、
５ａ，５ｂはロウ材６によってロウ付されるワークであ
り、このワークに加熱コイルを近づけて（又はワークを
加熱コイルに近づけて）、高周波電流を流すと、ワーク
には誘導電流又はうず電流が流れ、短時間に加熱され
る。この加熱により、ロウ材６が溶融し、接合できる。2. Description of the Related Art FIG. 3 is a perspective view showing a conventional high-frequency brazing device disclosed in, for example, Japanese Patent Laid-Open No. 4-172175, FIG.
FIG. 5 is a diagram showing two examples of general methods for brazing using the apparatus of FIG. In the figure, reference numeral 1 is a high-frequency heating power supply, and power is supplied to a high-frequency conversion transformer 3 by a high-frequency cable 2. 4 is a high frequency conversion transformer 3
A heating coil made of copper pipe attached to the tip of the
5a and 5b are works brazed by the brazing material 6. When a heating coil is brought close to this work (or a work is brought close to the heating coil) and a high-frequency current is passed, an induction current or an eddy current is generated in the work. It flows and is heated for a short time. By this heating, the brazing material 6 is melted and can be joined.
【０００３】次に動作について詳しく説明する。通常、
加熱コイル４はワーク５ａ，５ｂの形状に合わせて加工
し、最適の加熱状態となるようにしてある。そしてワー
ク５ａ，５ｂに加熱コイル４を近づけ、高周波電源１よ
り高周波ケーブル２、及び高周波変換トランス３を介し
て加熱コイル４に高周波電源を流すとワークは誘導電流
又はうず電流によって短時間に加熱される。このとき、
ロウ材６は、図４のように加熱前にワークに供給する場
合と、図５のように加熱中に供給する場合の２通りの方
法がとられるが、何れにしてもワークの加熱と共にロウ
材も溶融してワーク間が接合されるようになる。なお、
本発明は図５の例のように、複数組合わされた平角状線
材のロウ付を対象とするものである。Next, the operation will be described in detail. Normal,
The heating coil 4 is processed according to the shapes of the works 5a and 5b so as to be in an optimum heating state. Then, when the heating coil 4 is brought close to the works 5a and 5b and the high frequency power is supplied from the high frequency power supply 1 to the heating coil 4 through the high frequency cable 2 and the high frequency conversion transformer 3, the work is heated in a short time by an induced current or an eddy current. It At this time,
The brazing material 6 can be supplied to the work before heating as shown in FIG. 4 or can be supplied during heating as shown in FIG. The material also melts and the work pieces are joined together. In addition,
The present invention is intended for brazing of a plurality of flat rectangular wire rods combined as in the example of FIG.
【０００４】[0004]
【発明が解決しようとする課題】従来のロウ付方法は、
ワークの近くで加熱コイルに高周波電流を流すだけであ
るので、図５に示すような平角状の線材を組合わせたワ
ークをロウ付する場合、ロウ材溶融後にワーク間を密着
させるためにワークをはさみ込むという作業が必要であ
った。又、そのために常にロウ材の溶融状態を監視して
おかなければならなかった。The conventional brazing method is as follows.
Since a high-frequency current is simply passed to the heating coil near the work, when brazing a work that combines rectangular wire rods as shown in Fig. 5, the work should be adhered to the work after melting the brazing material. The work of sandwiching was necessary. For this reason, it has been necessary to constantly monitor the molten state of the brazing material.
【０００５】この発明は上記のような問題点を解消する
ためになされたもので、ロウ付の確実性の向上と、加熱
溶融後のワークの把持作業を無くすことを目的とする。The present invention has been made to solve the above problems, and an object thereof is to improve the reliability of brazing and to eliminate the work of holding a work after heating and melting.
【０００６】[0006]
【課題を解決するための手段】この発明に係るロウ付方
法は、ワークを加熱コイルと絶縁物間ではさみ込み、ロ
ウ材が溶けると、ワーク間が確実に密着されるようにし
たものである。In the brazing method according to the present invention, a work is sandwiched between a heating coil and an insulator, and when the brazing material is melted, the work is surely brought into close contact with each other. .
【０００７】この発明に係るロウ付装置は、先端に加熱
コイルを有する高周波変換トランスに、一端に上記加熱
コイルと協同してワークをはさんで加圧する絶縁物を有
し、かつ他端はシリンダと連結されたレバーを付設した
ものである。A brazing apparatus according to the present invention has a high-frequency conversion transformer having a heating coil at its tip, an insulator at one end that presses a work in cooperation with the heating coil, and the other end is a cylinder. It has a lever connected to it.
【０００８】[0008]
【作用】この発明においては、加熱コイルがワークの加
熱と把持作用の両作用を兼用することにより、ロウ材溶
融後のワークの把持作業を無くすことができる。In the present invention, since the heating coil serves both to heat the work and to hold the work, the work of holding the work after melting the brazing material can be eliminated.
【０００９】[0009]
実施例１．以下この発明の一実施例を図について説明す
る。図１はこの発明の一実施例を示す正面図、図２は加
熱コイルとワークの位置関係を示す図である。図におい
て、２〜６は上記従来装置と全く同一のものである。７
ａ，７ｂは高周波変換トランス３の周りに添設された円
筒状ブロック、８はワーク５ａ，５ｂを加熱コイル４と
の間にはさみ込み、該ワークを押し付ける為の絶縁物
で、この絶縁物８はレバー９の先端にボルト１０によっ
て取付けられており、支持レバー９の中間部はピン１１
で上記円筒状ブロック７ｂに枢支されている。１２はブ
ロック７ａに取付けられたシリンダで、このシリンダ１
２のロッド先端は上記レバー９に連結されており、この
シリンダ１２のロッドの動きによってレバー９がピン１
１を回転中心として矢印Ａ，Ｂの方向に回動するように
なっている。Example 1. An embodiment of the present invention will be described below with reference to the drawings. 1 is a front view showing an embodiment of the present invention, and FIG. 2 is a view showing a positional relationship between a heating coil and a work. In the figure, 2 to 6 are exactly the same as the above-mentioned conventional device. 7
Reference characters a and 7b are cylindrical blocks provided around the high-frequency conversion transformer 3, and reference numeral 8 is an insulator for sandwiching the works 5a and 5b with the heating coil 4 and pressing the works. Is attached to the tip of the lever 9 by a bolt 10, and the intermediate portion of the support lever 9 is a pin 11
And is pivotally supported by the cylindrical block 7b. 12 is a cylinder attached to the block 7a.
The tip of the rod 2 is connected to the lever 9, and the movement of the rod of the cylinder 12 causes the lever 9 to move to the pin 1
It is adapted to rotate in the directions of arrows A and B with 1 as the center of rotation.
【００１０】次に動作について説明する。まずＵ字状に
曲げたロウ材６をワーク５ａと５ｂの間にはさみ込む。
次にワーク５ａの上面を加熱コイル４の下面に押し当
て、図２のような位置となるようにセットする。ここで
シリンダ１２を矢印Ｃ方向に動かすと、ピン１１を中心
としてレバー９は矢印Ａ方向に回転する為、絶縁物８が
ワーク５ｂの下面に当たり、加熱コイル４と絶縁物８と
の間にワークがはさまった状態となる。そしてこの加圧
状態で、加熱コイル４に高周波電流を流すと、誘導電流
又はうず電流によってワーク並びにロウ材が加熱され
る。この際、まず加熱コイル４の円形の内側に入り込ん
でいるロウ材部分が溶け出してワーク５ａの上面を覆う
形となり、さらにワーク５ａを構成している複数本の平
角状線材の間に浸透していく。また徐々にワーク５ａと
５ｂの間のロウ材も溶け始め、ワーク５ａ，５ｂ間には
溶けたロウ材が浸透していき、ここで、ある定まった時
間の加熱をストップすると、ワークの間に浸透していっ
たロウ材が固化し、ワークを接合する。なお、ワーク５
ａ，５ｂ間は加圧されているので、すき間の小さい状態
で密着されることになる。Next, the operation will be described. First, the brazing material 6 bent in a U shape is sandwiched between the works 5a and 5b.
Next, the upper surface of the work 5a is pressed against the lower surface of the heating coil 4, and the work 5a is set to the position as shown in FIG. When the cylinder 12 is moved in the direction of arrow C, the lever 9 rotates in the direction of arrow A around the pin 11, so that the insulator 8 contacts the lower surface of the workpiece 5b and the workpiece 8 is placed between the heating coil 4 and the insulator 8. Will be sandwiched. When a high-frequency current is passed through the heating coil 4 in this pressurized state, the work and the brazing material are heated by the induction current or the eddy current. At this time, first, the brazing material portion that has entered the circular inside of the heating coil 4 is melted to cover the upper surface of the work 5a, and further penetrates into the plurality of rectangular wire rods forming the work 5a. To go. In addition, the brazing material between the works 5a and 5b gradually begins to melt, and the molten brazing material permeates between the works 5a and 5b. Here, when heating for a certain fixed time is stopped, The infiltrating brazing material solidifies and joins the workpieces. In addition, work 5
Since pressure is applied between a and 5b, they are closely attached with a small gap.
【００１１】その他の実施例．上記実施例では、ワーク
を横向きにして説明したが、これを縦向きにしても何ら
問題はない。又、レバーを動かす動力源としてシリンダ
を使って説明したが、複動形、単動形のシリンダ両方が
利用できることは言うまでもない。なおシリンダ以外で
は、人力、バネ力等も充分使える。また、上記実施例で
は、ロウ材に板状のものを曲げて使用しているが、ペー
スト状のロウ材をワーク間に塗布するか、又は上側ワー
ク上面に塗布することによっても同様の効果がある。Other Embodiments In the above-described embodiment, the work is described as being in the horizontal direction, but there is no problem even if the work is in the vertical direction. Further, although the cylinder has been described as the power source for moving the lever, it goes without saying that both double-acting and single-acting cylinders can be used. In addition to the cylinder, human power and spring force can be used. Further, in the above embodiment, the plate-shaped brazing material is used by bending, but the same effect can be obtained by applying the paste-like brazing material between the works or the upper work surface. is there.
【００１２】[0012]
【発明の効果】以上のようにこの発明によれば、加熱コ
イルにワークを直接押し当てるとともに、その反対側か
ら絶縁物でワークをはさむように押し付けるので、ワー
ク間の隙間を無くすことができ、ロウ付を確実に実施し
得るとともに、ロウ材の溶融を確認後、ワークを把持す
るという作業を省くことができる。As described above, according to the present invention, since the work is directly pressed against the heating coil and the work is pressed from the opposite side with the insulator, the gap between the works can be eliminated. The brazing can be performed reliably, and the work of gripping the work after confirming the melting of the brazing material can be omitted.
【図１】この発明の一実施例を示す正面図である。FIG. 1 is a front view showing an embodiment of the present invention.
【図２】この発明の一実施例を示す加熱コイルとワーク
の位置関係図である。FIG. 2 is a positional relationship diagram of a heating coil and a work showing an embodiment of the present invention.
【図３】従来のロウ付方法を行なう高周波ロウ付装置を
示す図である。FIG. 3 is a diagram showing a high-frequency brazing device for performing a conventional brazing method.
【図４】図３の装置を用いて行なう一般的なロウ付方法
の一例を示す図である。FIG. 4 is a diagram showing an example of a general brazing method performed using the apparatus of FIG.
【図５】図３の装置を用いて行なう一般的なロウ付方法
の他の例を示す図である。FIG. 5 is a diagram showing another example of a general brazing method performed using the apparatus of FIG.
１ 高周波加熱電源 ２ 高周波ケーブル ３ 高周波変換トランス ４ 加熱コイル ５ａ，５ｂ ワーク ６ ロウ材 ８ 絶縁物 ９ レバー １３ シリンダ 1 high-frequency heating power supply 2 high-frequency cable 3 high-frequency conversion transformer 4 heating coil 5a, 5b work 6 brazing material 8 insulator 9 lever 13 cylinder
Claims (2)
材間をロウ付によって接合する方法において、上記線材
間にロウ材をはさみ込んだ状態で、上記組合せ線材の一
面を加熱コイルに押し当てるとともに、他方の面に絶縁
物を押し当てることで、上記加熱コイルと絶縁物との間
に上記組合せ線材を両面からはさみ込んで加圧し、この
状態で上記加熱コイルに流れる高周波誘導電流により、
ロウ材を加熱、溶融してロウ付することを特徴とするロ
ウ付方法。1. A method of combining a plurality of flat wire rods and joining the wire rods by brazing, wherein one surface of the wire rods is pressed against a heating coil with the brazing wire sandwiched between the wire rods. Along with hitting, by pressing an insulator against the other surface, the combined wire rod is sandwiched between both sides of the heating coil and the insulator and pressed, and by the high frequency induction current flowing in the heating coil in this state,
A brazing method characterized in that a brazing material is heated and melted to be brazed.
ランスに、中間を回動可能に枢支された支持レバーを取
付け、この支持レバーの一端で、上記加熱コイルと対向
する部位に、絶縁物を固定し、かつ上記支持レバーの他
端部は上記トランスに取付けたシリンダと連結してなる
ロウ付装置。2. A high-frequency conversion transformer having a heating coil at its tip is provided with a support lever rotatably supported in the middle, and an insulator is provided at a portion of the support lever facing the heating coil. A brazing device that is fixed and has the other end of the support lever connected to a cylinder attached to the transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4058793A JP2787838B2 (en) | 1993-02-03 | 1993-02-03 | Brazing method and apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4058793A JP2787838B2 (en) | 1993-02-03 | 1993-02-03 | Brazing method and apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06226435A true JPH06226435A (en) | 1994-08-16 |
| JP2787838B2 JP2787838B2 (en) | 1998-08-20 |
Family
ID=12584634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4058793A Expired - Lifetime JP2787838B2 (en) | 1993-02-03 | 1993-02-03 | Brazing method and apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2787838B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007043898A (en) * | 2005-08-03 | 2007-02-15 | General Electric Co <Ge> | Movable heating method and system having fixed heating source for brazing stator bar |
| CN103909317A (en) * | 2014-04-04 | 2014-07-09 | 哈尔滨电气动力装备有限公司 | Brazing method for stator coil joint of shield motor |
| EP2899852A1 (en) * | 2014-01-23 | 2015-07-29 | Alstom Technology Ltd | Method for brazing rotor windings |
-
1993
- 1993-02-03 JP JP4058793A patent/JP2787838B2/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007043898A (en) * | 2005-08-03 | 2007-02-15 | General Electric Co <Ge> | Movable heating method and system having fixed heating source for brazing stator bar |
| EP2899852A1 (en) * | 2014-01-23 | 2015-07-29 | Alstom Technology Ltd | Method for brazing rotor windings |
| WO2015110214A3 (en) * | 2014-01-23 | 2015-09-17 | Alstom Technology Ltd | Method for brazing rotor windings |
| CN105939810A (en) * | 2014-01-23 | 2016-09-14 | 通用电器技术有限公司 | Method for brazing rotor windings |
| CN103909317A (en) * | 2014-04-04 | 2014-07-09 | 哈尔滨电气动力装备有限公司 | Brazing method for stator coil joint of shield motor |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2787838B2 (en) | 1998-08-20 |
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