JPS6034465Y2 - Spot welding electrode - Google Patents
Spot welding electrodeInfo
- Publication number
- JPS6034465Y2 JPS6034465Y2 JP15987680U JP15987680U JPS6034465Y2 JP S6034465 Y2 JPS6034465 Y2 JP S6034465Y2 JP 15987680 U JP15987680 U JP 15987680U JP 15987680 U JP15987680 U JP 15987680U JP S6034465 Y2 JPS6034465 Y2 JP S6034465Y2
- Authority
- JP
- Japan
- Prior art keywords
- spot welding
- electrode
- welding electrode
- present
- welding
- 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
Landscapes
- Resistance Welding (AREA)
Description
【考案の詳細な説明】
本考案は比較的低融点の金属ベース上に金属線をスポッ
ト溶接する際、使用される溶接機のスポット溶接用電極
の形状に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to the shape of a spot welding electrode of a welding machine used when spot welding a metal wire onto a metal base having a relatively low melting point.
従来、この種のスポット溶接は単なる棒状の電極を用い
、この電極にて溶接する金属同士の接触面を部分的に溶
解して接続する方法が主であった。Conventionally, this type of spot welding has mainly used a simple rod-shaped electrode to partially melt and connect the contact surfaces of the metals to be welded with this electrode.
第１図、第２図はおのおのその一例を示すもので、１は
電極、２は金属体である。FIG. 1 and FIG. 2 each show an example, where 1 is an electrode and 2 is a metal body.
しかしながら上記構成の電極を用いた溶接方法では、同
種の金属の場合は比較的容易にスポット溶接をすること
ができるものの、異種の金属の場合、その溶融点の相違
により両者を同条件に溶解−接続することは困難であっ
た。However, in the welding method using the electrode with the above configuration, although it is possible to perform spot welding relatively easily in the case of the same type of metal, in the case of dissimilar metals, both are melted under the same conditions due to the difference in their melting points. It was difficult to connect.
たとえば、亜鉛ベース上に銅線をスポット溶接する場合
、亜鉛の融点は約４１９°Ｃと比較的低く、これに対し
て銅は約１０８０°Ｃと高いためスポット溶接時、銅は
溶解せず溶接できない場合が多く、また見かけ上は接続
されていてもわずかな外力により簡単に外れ全く実用に
耐ええないものであった。For example, when spot welding copper wire onto a zinc base, zinc has a relatively low melting point of about 419°C, whereas copper has a high melting point of about 1080°C, so during spot welding, the copper does not melt and welds. In many cases, this is not possible, and even if it appears to be connected, it can easily come off due to a slight external force, making it completely impractical.
この問題を防止する方法として銅線の表面に半田メッキ
を施したＮＬ線を用いる方法があるが、この場合でもメ
ッキ層厚の問題等により十分な接続強度を得ることは極
めて困難であった。One way to prevent this problem is to use an NL wire whose surface is solder-plated, but even in this case, it is extremely difficult to obtain sufficient connection strength due to problems such as the thickness of the plating layer.
本考案は上記点に鑑み、半田付けと同程度の接続強度を
得ることのできるスポット溶接用電極を提供するもので
ある。In view of the above points, the present invention provides an electrode for spot welding that can obtain a connection strength comparable to that of soldering.
以下その一実施例を第３〜第５図を用いて説明する。An example of this will be described below with reference to FIGS. 3 to 5.
第３図に本考案の電極形状を示す。２つの電極用導電部
３，４を間に絶縁物５を介在せしめて一体化し、かつ各
導電部３，４の先端部で絶縁物５をはさんで互いに近接
する部分を切欠いて切欠部６を形成している。FIG. 3 shows the electrode shape of the present invention. Two electrode conductive parts 3 and 4 are integrated with an insulator 5 interposed between them, and the insulator 5 is sandwiched between the ends of each conductive part 3 and 4, and the portions adjacent to each other are cut out to form a notch 6. is formed.
本考案者は上記第３図の電極を用いて、亜鉛ベース上に
ＮＬ銅線をスポット溶接したので、その内容について第
４図を用いて説明する。The present inventor spot-welded a NL copper wire onto a zinc base using the electrode shown in FIG. 3, and the details thereof will be explained using FIG. 4.
スポット溶接を始めると、亜鉛ベース７は溶接電流によ
り部分的に溶解され（第４図ａの８の部分）、この部分
８へ電極にて銅線９が押しつけられ、圧力により埋め込
まれる。When spot welding is started, the zinc base 7 is partially melted by the welding current (part 8 in FIG. 4a), and the copper wire 9 is pressed against this part 8 with an electrode and embedded under pressure.
このとき、銅線９が埋めこまれた体積相当分だけ溶融亜
鉛８が上部へ押し出され電極の切欠部６に入り（第４図
ｂ）、あたかも成形されたごとく圧縮され凝固する（第
４０）。At this time, the molten zinc 8 is pushed upward in an amount equivalent to the volume of the copper wire 9 embedded, enters the notch 6 of the electrode (Fig. 4b), and is compressed and solidified as if it had been molded (No. 40) .
この状態を斜視図で第４図ｄに示す。This state is shown in a perspective view in FIG. 4d.
このため銅線９は亜鉛でもって覆われることになり、機
械的に極めて強力な接続強度を得ることができる。Therefore, the copper wire 9 is covered with zinc, and mechanically extremely strong connection strength can be obtained.
第１表に亜鉛ベースと銅線を半田付けした場合、従来の
第２図の電極を用いてスポット溶接した場合、本考案の
第３図の電極を用いてスポット溶接した場合のおのおの
の接続強度を比較した結果を示す。Table 1 shows the connection strength when soldering the zinc base and copper wire, when spot welding using the conventional electrode shown in Fig. 2, and when spot welding using the electrode of the present invention shown in Fig. 3. The results of the comparison are shown below.
この表よりも明らかなように、本考案の電極を用いるこ
とにより極めて大きな皮果が得られた。As is clear from this table, extremely large peels were obtained by using the electrode of the present invention.
また、本考案によると半田付けに比較してフラックス、
半田等が不要となるために経済的でもある。In addition, according to the present invention, compared to soldering, flux
It is also economical since solder etc. are not required.
第５図に電極の他の形状例を示すが、いずれのものも第
３図の電極を用いた場合と同様の結果が実験の結果得ら
れた。FIG. 5 shows examples of other shapes of electrodes, and in all of them, the same results as in the case of using the electrodes in FIG. 3 were obtained as a result of experiments.
なお、上記実施例においては導電部を絶縁物を介して一
体化するようにしたが、特に一体化する必要はない。In addition, in the above embodiment, the conductive parts are integrated through an insulator, but there is no particular need to integrate them.
以上説明したように本考案によれば、間に絶縁物を介し
て正、負の電極を設け、この電極の先端部でかつ互いに
相対向する部分を切欠いて凹部状の切欠部を電極中央に
設けることにより、溶接しようとする金属体が異種のも
のであっても強力に両者をスポット溶接することができ
るものである。As explained above, according to the present invention, positive and negative electrodes are provided with an insulator in between, and the tip portions of these electrodes facing each other are cut out to form a concave cutout in the center of the electrodes. By providing this, even if the metal bodies to be welded are of different types, it is possible to powerfully spot weld the two metal bodies.
第１図、第２図はおのおの従来のスポット溶接法を説明
するための図、第３図は本考案の一実施例におけるスポ
ット溶接用電極の斜視図、第４図ａｔ ｂｔ ｃｔ ｄ
は本考案による電極を用いた溶接過程を説明するための
図、第５図ａ、 ｂ、 ｃは電極の他の形状例を示す図
である。
３．４・・・・・・電極用導電部、５・・・・・・絶縁
部、６・・・・・・切欠部。Figures 1 and 2 are diagrams for explaining conventional spot welding methods, Figure 3 is a perspective view of a spot welding electrode according to an embodiment of the present invention, and Figure 4 is a diagram for explaining the conventional spot welding method.
5 is a diagram for explaining a welding process using the electrode according to the present invention, and FIGS. 5A, 5B, and 5C are diagrams showing other examples of electrode shapes. 3.4... Conductive part for electrode, 5... Insulating part, 6... Notch part.
Claims (1)
し、かつ各導電部の先端部で互いに隣接する部分を切欠
いて溶接した被溶接物が入り込む凹部状の切欠部を形成
してなるスポット溶接用電極。Conductive parts for positive and negative electrodes are installed with an insulator interposed between them, and adjacent parts at the tips of each conductive part are cut out to form a recessed notch into which the welded object enters. Electrode for spot welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15987680U JPS6034465Y2 (en) | 1980-11-07 | 1980-11-07 | Spot welding electrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15987680U JPS6034465Y2 (en) | 1980-11-07 | 1980-11-07 | Spot welding electrode |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5782489U JPS5782489U (en) | 1982-05-21 |
| JPS6034465Y2 true JPS6034465Y2 (en) | 1985-10-14 |
Family
ID=29518880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15987680U Expired JPS6034465Y2 (en) | 1980-11-07 | 1980-11-07 | Spot welding electrode |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6034465Y2 (en) |
-
1980
- 1980-11-07 JP JP15987680U patent/JPS6034465Y2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5782489U (en) | 1982-05-21 |
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