JPS5913948B2 - Welding current connection device - Google Patents
Welding current connection deviceInfo
- Publication number
- JPS5913948B2 JPS5913948B2 JP54159893A JP15989379A JPS5913948B2 JP S5913948 B2 JPS5913948 B2 JP S5913948B2 JP 54159893 A JP54159893 A JP 54159893A JP 15989379 A JP15989379 A JP 15989379A JP S5913948 B2 JPS5913948 B2 JP S5913948B2
- Authority
- JP
- Japan
- Prior art keywords
- welding
- pressurizing
- power supply
- welding current
- contact pieces
- 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
- 238000003466 welding Methods 0.000 title claims description 112
- 238000007373 indentation Methods 0.000 description 4
- 230000003028 elevating effect Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000010953 base metal Substances 0.000 description 1
- 230000003796 beauty Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005493 welding type Methods 0.000 description 1
Landscapes
- Resistance Welding (AREA)
Description
【発明の詳細な説明】 本発明は、溶接電流接続装置に関するものである。[Detailed description of the invention] The present invention relates to a welding current connection device.
従来、たとえぱ自動車用プレス部品等の被溶接物を多点
同時にスポット溶接するには、専用のマルチスポット溶
接装置を作業工程毎に一式又は複数式を準備するのが普
通である。一般に、この種の溶接装置には、被溶接物を
所定の位置で確実に位置決め固定するためのクランプ装
置と溶接打点数に応じたスポット溶接に必要な溶接治具
とが装備されている。そして溶接治具には、溶接打点数
に応じたスポット溶接ガンと、これらスポット５ 溶接
ガンの加圧力及び溶接電流を受けるバッキング電流とが
設置されている。又スポット溶接ガンは、圧縮空気又は
油圧にて動作する加圧シリンダと、この加圧シリンダに
て動作する電極ホルダの先端に嵌着した電極チップとを
備え、更に、電極“ｏ ホルダには溶接トランスの端子
部に締付固着された溶接ケーブルの片側端子を締付固着
してある。一般に、加圧シリンダ、電極ホルダ、電極チ
ップ、溶接ケーブルは、スポット打点数に応じた数だけ
必要とするが、溶接トランスはその端子先端ｉ５を分岐
して各溶接ガンヘ溶接ケーブルを締付固着しているのが
普通である。したがつて、従来は一つの溶接トランスか
ら多数の溶接ケーブルを各溶接カンヘ接続することにな
るから、溶接ケーブルの長さに長短ができ、その結果、
各溶接点の抵抗’ｏ の違いから、各溶接点に均一な溶
接電流を通電することができず、安定した溶接条件が一
様に得られない。更に、自動車のドアなど外観上溶接箇
所に圧痕を生じさせたくないような、美観を重視した薄
板や外板のスポット溶接においては、そのス■５ ポッ
ト溶接部表面の圧痕は、溶接ケーブルの長短により、溶
接電流が各溶接点に均一に流れないために生じ、美観を
損う結果となる。また、スポット溶接位置と溶接トラン
ス端子部との間をつなぐ溶接ケーブルの長さを均一にす
る９０ためには、スポット溶接位置に対する溶接トラン
スの取付け位置が設計上必然的に制約されるので、適在
適所に多数の溶接トランスを配置する必要があつた。Conventionally, in order to spot-weld objects to be welded, such as press parts for automobiles, at multiple points at the same time, it is common to prepare one or more dedicated multi-spot welding devices for each work process. Generally, this type of welding apparatus is equipped with a clamp device for reliably positioning and fixing the workpiece at a predetermined position, and a welding jig necessary for spot welding according to the number of welding points. The welding jig is equipped with spot welding guns corresponding to the number of welding points, and a backing current that receives the pressurizing force and welding current of these spot 5 welding guns. The spot welding gun also includes a pressure cylinder operated by compressed air or hydraulic pressure, and an electrode tip fitted to the tip of an electrode holder operated by the pressure cylinder. The terminal on one side of the welding cable is fastened to the terminal of the transformer.Generally, the number of pressurizing cylinders, electrode holders, electrode tips, and welding cables that are required corresponds to the number of spot welding points. However, the welding transformer normally has its terminal tip i5 branched out and the welding cables are fastened to each welding gun.Therefore, conventionally, a large number of welding cables were connected to each welding gun from one welding transformer. Since the welding cable has to be connected, the length of the welding cable can be made longer or shorter, and as a result,
Due to the difference in resistance 'o of each welding point, it is not possible to apply a uniform welding current to each welding point, and stable welding conditions cannot be uniformly obtained. Furthermore, in spot welding of thin plates and exterior panels where aesthetics are important, such as car doors, where it is desirable to avoid creating indentations on the welded area, the indentation on the surface of the pot weld may be caused by the length or shortness of the welding cable. This occurs because the welding current does not flow uniformly to each welding point, resulting in an unsightly appearance. In addition, in order to make the length of the welding cable connecting between the spot welding position and the welding transformer terminal part uniform90, the installation position of the welding transformer with respect to the spot welding position is inevitably restricted due to the design, so it is necessary to It was necessary to place a large number of welding transformers in appropriate locations.
かくして、溶接治具内における多数の溶接トランスの配
置は、溶接治具が大きくなり、ま３５た複雑ともなり、
保守面、安全面はもちろん価格的にも不利益を招くこと
になり、とりわけ、溶接治具が複雑、大形になることは
、工場内に広い設置スペースを必要とするだけでなく、
被溶接部の移送能率を低下させる大きな要因の一つとな
つている。Thus, the arrangement of multiple welding transformers within a welding jig increases the size and complexity of the welding jig.
This brings about disadvantages not only in terms of maintenance and safety, but also in terms of price.In particular, welding jigs that are complex and large in size not only require a large installation space within the factory.
This is one of the major factors that reduces the transport efficiency of the welded parts.
このような従来の装置の構成を第１図及び第２図により
具体的に説明すると、第１図は溶接治具の全体図で、こ
の場合、溶接治具１６には上部フレーム１６ａに電極チ
ツプ６を嵌入する電極ホルダ５を先端に取付た加圧装置
４が被溶接物１のスポツト溶接位置に合せて取付られて
いる。The structure of such a conventional device will be explained in detail with reference to FIGS. 1 and 2. FIG. 1 is an overall view of a welding jig, and in this case, the welding jig 16 includes an electrode chip on an upper frame 16a. A pressurizing device 4 having an electrode holder 5 fitted at the tip thereof into which an electrode holder 6 is inserted is attached to the spot welding position of the workpiece 1.
下部フレーム１６ｂにはバツキング電極３と位置決め用
クランプ装置２が取付られ、被溶接物１をバツキング電
極３に密接固着させる。A bucking electrode 3 and a positioning clamp device 2 are attached to the lower frame 16b, and the workpiece 1 to be welded is closely fixed to the bucking electrode 3.
上部フレーム１６ａに取付た溶接トランス８ａ，８ｂの
端子部の分岐部には、正負一対の溶接ケーブル７Ａ，７
ｂの一方が締付固着され、他方が電極ホルダ５に締付固
着されている。A pair of positive and negative welding cables 7A, 7 is connected to the terminal branch of the welding transformers 8a, 8b attached to the upper frame 16a.
One side of b is fastened and fixed, and the other side is fastened and fixed to the electrode holder 5.
溶接トランス８ａ，８ｂには電源９より切換スイツチ１
０を通して電流が供給される。スポツト溶接をする時、
加圧装置４は、圧縮空気又は油圧の作動により電極チツ
プ６を被溶接物１に押付け溶接に必要な加圧力を発生さ
せる。Welding transformers 8a and 8b are connected to selector switch 1 from power source 9.
Current is supplied through 0. When spot welding,
The pressurizing device 4 presses the electrode tip 6 against the workpiece 1 to generate a pressurizing force necessary for welding by operating compressed air or hydraulic pressure.
溶接電流は、電源９から切換スイツチ１０にて溶接トラ
ンス８ａ，８ｂに順次供給される。そして溶接トランス
から溶接ケーブル７Ａ，７ｂを流れる溶接電流は、電極
ホルダ５、電極チツプ６、被溶接物１、バツキング電極
３を流れてスポツト溶接部に溶接ナゲツトを形成する。
しかしながら、溶接トランスからの溶接ケーブルの長さ
が異なる場合、各溶接ガンに均一な溶接電流を通電する
ことができないため、第２図に示すような結果を招く。Welding current is sequentially supplied from a power source 9 to welding transformers 8a and 8b by a changeover switch 10. The welding current flowing through the welding cables 7A and 7b from the welding transformer flows through the electrode holder 5, electrode tip 6, workpiece 1, and bucking electrode 3 to form a weld nugget at the spot weld.
However, if the lengths of the welding cables from the welding transformer are different, it is not possible to apply a uniform welding current to each welding gun, resulting in the result shown in FIG. 2.
すなわち、溶接ケーブル７ａが７ｂより長い場合、被溶
接物１ａ，１ｂ、バツキング電極３を流れる電流は、抵
抗の違いにより１１〉１２となり溶接ナゲツトの大きさ
もＮ１〉Ｎ２となり、表面の圧痕状態も１ｃ，１ｄのよ
うに大小異なる結果となる。そこで、本発明は、叙上の
欠点を解決するために開発されたもので、その特徴とす
るところは、溶接電流の通電接続に必要な正負一対の受
電接触片を多数備えた一式または複数式の溶接治具と、
該溶接治具に対応して架設した案内ガイド装置と、該案
内ガイド装置を自由に移動し、予め設定された位置で停
止させることが可能な給電用加圧装置とを有し、上記加
圧装置は二つのアームがシリンダによつて開閉可能なご
とく構成され、しかも該アームの各先端部には、溶接ト
ランスと電気的に接続された正負一対の給電接触片が相
対向する位置に装備され、該給電接触片は所定位置で上
記シリンダの加圧動作によつて上記受電船触片を挟圧し
て溶接電流の通電接続を行なうようにしたことを特徴と
する溶接電流接続装置にある。That is, when the welding cable 7a is longer than 7b, the current flowing through the objects to be welded 1a, 1b and bucking electrode 3 is 11>12 due to the difference in resistance, the size of the weld nugget is also N1>N2, and the state of the indentation on the surface is also 1c. , 1d, the results are different in size. Therefore, the present invention was developed to solve the above-mentioned drawbacks, and its characteristics are as follows: A set or a plurality of sets of positive and negative power receiving contact pieces necessary for welding current connection. Welding jig and
It has a guide device installed corresponding to the welding jig, and a power feeding pressurizing device that can freely move the guide device and stop it at a preset position, and The device has two arms that can be opened and closed by cylinders, and each arm is equipped with a pair of positive and negative power supply contact pieces, which are electrically connected to a welding transformer, at opposing positions at the tip of each arm. In the welding current connecting device, the power feeding contact piece is configured to press the power receiving boat contact piece at a predetermined position by pressurizing the cylinder to connect the welding current.
以下、本発明装置の一実施例を第３図と第４図に基づい
て説明する。An embodiment of the apparatus of the present invention will be described below with reference to FIGS. 3 and 4.
第３図は、かかる発明装置の一例を全体図で示し、第４
図は、他の実施例として本発明装置の全体を概略的に示
す。FIG. 3 shows an overall view of an example of such an inventive device, and FIG.
The figure schematically shows an overall device according to the invention as a further embodiment.
なお、図中において、第１図及び第２図に示されたもの
と同一の機能及び構造を有するものには同一符号をもつ
て詳細は省略する。上部フレーム１６ａには、その上面
から突出すように正負一対の受電接触片１４を絶縁板１
５を介して設置するが、この場合、受電接触片１４の設
置位置は、各スポツト溶接位置に配列されたスポツト溶
接ガン１７ａ〜１７ｄの電極チツプ６を支持する電極ホ
ルダ５に接続された溶接ケーブル７ａ〜７ｄがほぼ均一
な長さを一様に得られる所にある。In the drawings, parts having the same functions and structures as those shown in FIGS. 1 and 2 are designated by the same reference numerals, and detailed descriptions are omitted. A pair of positive and negative power receiving contact pieces 14 are attached to the insulating plate 1 on the upper frame 16a so as to protrude from the upper surface of the upper frame 16a.
In this case, the installation position of the power receiving contact piece 14 is the welding cable connected to the electrode holder 5 that supports the electrode tips 6 of the spot welding guns 17a to 17d arranged at each spot welding position. 7a to 7d can uniformly obtain substantially uniform lengths.
上部フレーム１６ａの上にガイドポスト１８が固着され
、このガイドポスト１８に案内ガイド装装置９が架設さ
れ、この案内ガイド装置１９に給電用加圧装置２０が取
付けられている。A guide post 18 is fixed on the upper frame 16a, a guide device 9 is mounted on the guide post 18, and a power supply pressurizing device 20 is attached to the guide device 19.
この給電用加圧装置２０は、案内ガイド装置１９の一部
を構成するモータなどの駆動装置２１により送りネジ２
２を回転することによつてレール２３上をドローり２４
が移動し、予め設定した位置に順次停止させることがで
きるようになつている。そして、ドローり２４の支持部
材の先端部には、軸枢部２５を介して二つのアーム２６
，２７が回転自在に軸支され、一方のアーム２７の後端
には加圧シリンダ２８の本体が、また他方のアーム２６
の後端には加圧シリンダ２８のロツド２９がそれぞれ連
結されて、各アーム先端部に相対向して位置固定された
給電接触片３０，３１が加圧シリンダ２８の動作で開閉
するように構成されている。そして給電接触片３０，３
１には、案内ガイド装置１９の上に固定された電源９に
切換スイツチ１０を介して接続された溶接トランス８か
らの正負一対の可撓性溶接ケーブル３２，３３がアーム
２６２７を介してそれぞれ接続されている。次に、本発
明装置の作用動作を説明すると、スポツト溶接時におい
て、給電用加圧装置２０は給電接触片３０，３１を開放
した状態で予め設定された指示に従つて駆動装置２１及
び送りネジ２２によつて移動し、目的の受電接触片１４
の固定位置の上空で停止すると、受電接触片１４は給電
接触片３０と３１の間に位置する。This power feeding pressurizing device 20 is driven by a drive device 21 such as a motor, which constitutes a part of the guide device 19, to drive the feed screw 2.
Draw 24 on the rail 23 by rotating 2
can be moved and sequentially stopped at preset positions. Two arms 26 are attached to the distal end of the support member of the drawer 24 via a shaft portion 25.
.
The rods 29 of the pressurizing cylinders 28 are connected to the rear ends, and the power supply contact pieces 30 and 31 fixed in positions opposite to each other at the tips of the arms are configured to open and close with the operation of the pressurizing cylinders 28. has been done. and power supply contact piece 30,3
1, a pair of positive and negative flexible welding cables 32 and 33 from a welding transformer 8 connected to a power source 9 fixed on a guide guide device 19 via a changeover switch 10 are connected via arms 2627, respectively. has been done. Next, to explain the operation of the device of the present invention, during spot welding, the power supply pressurizing device 20 moves the drive device 21 and the feed screw according to preset instructions with the power supply contact pieces 30 and 31 open. 22, and the target power receiving contact piece 14
When stopped above the fixed position, the power receiving contact piece 14 is located between the power feeding contact pieces 30 and 31.
かくして、加圧シリンダ２８を作動しアーム２６，２７
が軸枢部２５を中心に回動すると、この動作によつてア
ーム先端部の給電接触片３０と３１は受電接触片１４を
第３図のように両側から挟み込み、両者間の電気的接触
状態は確実なものとなる。次いで、溶接トランス８から
供給された溶接電流は、ｅ側の溶接ケーブル３２を通り
アーム２６から給電接触片３０へ流れ、受電接触片１４
の４側を通り溶接ガン１７ａ及び１７ｃの溶接ケーブル
７Ａ，７ｃへ同時に流れ、被溶接物１とバツクアツプ電
極３を通り、相隣なるｅ極の溶接ガン１７ｂ，１７ｄへ
流れる。そしてｅ側に流れた溶接電流は溶接ケーブル７
Ｂ，７ｄを経て受電接触片１４のｅ極から給電接触片３
１へ流れ、アームより溶接ケーブル３３を通つて溶接ト
ランス８へ戻る。その結果、被溶接物の各打点位置には
均一な溶接電流が同時に流れ、安定したスポツト溶接部
を多点同時に形成することができる。また、溶溶ケーブ
ルの長さが均一であるので、スポツト溶接部の強度は勿
論美観を重視する薄板又は外板の圧痕も非常に少なく、
均一な美しさを持つた製品を生産することができる。か
くして溶接が完了すると、給電接触片３０，３１は加圧
シリンダ２８によつて開放され、受電接触片１４から離
れる。Thus, the pressurizing cylinder 28 is actuated and the arms 26, 27 are activated.
When the arm rotates around the axis 25, this action causes the power supply contact pieces 30 and 31 at the tip of the arm to sandwich the power reception contact piece 14 from both sides as shown in FIG. 3, thereby establishing electrical contact between them. becomes certain. Next, the welding current supplied from the welding transformer 8 flows from the arm 26 to the power supply contact piece 30 through the e-side welding cable 32, and then flows to the power reception contact piece 14.
It flows simultaneously to the welding cables 7A and 7c of the welding guns 17a and 17c, passes through the workpiece 1 and the backup electrode 3, and flows to the welding guns 17b and 17d of the adjacent e-pole. The welding current flowing to the e side is the welding cable 7.
B, 7d from the e pole of the power receiving contact piece 14 to the power feeding contact piece 3
1 and returns to the welding transformer 8 from the arm through the welding cable 33. As a result, a uniform welding current flows simultaneously to each welding point position of the object to be welded, and stable spot welds can be simultaneously formed at multiple points. In addition, since the length of the welding cable is uniform, there are very few indentations on thin plates or outer plates, which are important not only for the strength of spot welds but also for aesthetics.
It is possible to produce products with uniform beauty. When welding is thus completed, the power supply contact pieces 30 and 31 are opened by the pressure cylinder 28 and separated from the power reception contact piece 14.
次いで、給電用加圧装置２０は、案内ガイド装置１９に
よつて次の受電接触片１４へ移動され、停止位置で先と
同じ動作を繰返すことになる。次に、溶接治具１６が複
数式ある場合の実施例を第４図の全体図に示し、以下、
これについて説明する。Next, the power feeding pressurizing device 20 is moved to the next power receiving contact piece 14 by the guiding device 19, and repeats the same operation as before at the stop position. Next, an example in which there are multiple welding jigs 16 is shown in the general view of FIG. 4, and below,
This will be explained.
複数式の溶接治具１６は、夫々の間隔を取るか、又は密
接して設置する場合もある。各溶接治具１６の上には、
案内ガイド装置１９が設けられている。そして給電用加
圧装置２０は、昇降ガイド３４とその１駆動源に昇降用
シリンダ３５によつて昇降可能なように設置してある。
すなわち、この給電用加圧装置２０は、駆動装置２１に
て作動する送りチエン２２に接続され、レール２３を移
動し、予め設定した指示に従つて停止することができ、
また昇降用シリンダ３５により昇降ガイド３４を上下動
することができる。したがつて、給電用加圧装置２０は
、各溶接治具１６に設けられた受電接触片１４の取付け
位置に順次移動されながら、各受電接触片１４に対し給
電接触片３０，３１を挟圧させて各溶接治具１６への通
電を効率よく行ない、溶接作業に充分な効果を上げるこ
とができる。更に他の実施例を加えれば、たとえぱ給電
加圧装置を一台ではなく、複数台用意して、複数組の受
電接触片に同時に通電すれば作業時間を大幅に短縮する
ことも可能になり、又複数台の給電用加圧装置及び案内
ガイド装置をそれぞれ受電接触片ことに複列に設置すれ
は、複数技の溶接治具の配列がどのように配列されても
、これに充分対応することができ、生産効率を高めるこ
とができる。The plurality of welding jigs 16 may be spaced apart from each other or may be installed closely together. On each welding jig 16,
A guide guide device 19 is provided. The power supply pressurizing device 20 is installed on the elevating guide 34 and its one driving source so as to be movable up and down by the elevating cylinder 35.
That is, this power supply pressurizing device 20 is connected to a feed chain 22 operated by a drive device 21, moves on a rail 23, and can stop according to a preset instruction.
Further, the lifting guide 34 can be moved up and down by the lifting cylinder 35. Therefore, the power feeding pressurizing device 20 presses the power feeding contact pieces 30 and 31 against each power receiving contact piece 14 while being sequentially moved to the mounting position of the power receiving contact piece 14 provided on each welding jig 16. In this way, each welding jig 16 can be energized efficiently, and a sufficient effect can be achieved in the welding work. Furthermore, if another embodiment is added, it is possible to significantly shorten the working time even if multiple power supply pressurizing devices are prepared instead of one and multiple sets of power receiving contact pieces are energized at the same time. Also, by installing multiple power feeding pressurizing devices and guiding devices in double rows on each power receiving contact piece, it is sufficient to cope with any arrangement of welding jigs for multiple techniques. It is possible to increase production efficiency.
以上、詳述したように、本発明によれば、抵抗溶接機の
溶接電流接続装置として、一式または複数式の溶接治具
に設置した多数の対をなす受電接触片を、上記溶接治具
に対応して架設した案内ガイド装置によつて予め設定し
た順序に従つて自由に移動、停止させることができる給
電用加圧装置に装備した開閉自在の対をなす給電接触片
間で把握接続する構造にしたから、たとえばマルチスポ
ツト溶接機などは溶接トランスから供給される溶接電流
を、上記給電接触片から受電接触片を通して各溶接ガン
へ均一にしかも同時に供給することができ、安定した高
い品質の溶接結果が得られるほか、母材表面に残るスポ
ツト溶接部の圧痕を極力少なくすることができ、製品価
値を一様に高く保つことができる。また、溶接治具構造
の簡素化による作業性、安全性及び保守性の面で多大の
効果を上げることができる。As detailed above, according to the present invention, as a welding current connection device for a resistance welding machine, a large number of pairs of power receiving contact pieces installed in one or more welding jigs are connected to the welding jigs. Structure that grips and connects between a pair of power supply contact pieces that can be opened and closed, equipped on a power supply pressurizing device that can be freely moved and stopped according to a preset order by a correspondingly installed guiding device. For example, multi-spot welding machines can uniformly and simultaneously supply the welding current supplied from the welding transformer to each welding gun through the power supply contact piece and the power receiving contact piece, resulting in stable and high quality welding. In addition to achieving good results, it is possible to minimize the impressions left by spot welds on the surface of the base metal, and the product value can be maintained at a uniformly high level. Further, by simplifying the welding jig structure, great effects can be achieved in terms of workability, safety, and maintainability.
第１図は、従来のマルチスポツト溶接機の一例を示す全
体正面図、第２図は従来におけるスポツト溶接部の部分
詳細図、第３図は、本発明装置の充施例を示す全体正面
図、第４図は本発明の他の実施例として複数式の溶接治
具と昇降機能を備えた給電用加圧装置の全体を概略的に
示す正面図。Fig. 1 is an overall front view showing an example of a conventional multi-spot welding machine, Fig. 2 is a partial detailed view of a conventional spot welding section, and Fig. 3 is an overall front view showing an example of the application of the device of the present invention. FIG. 4 is a front view schematically showing the entirety of a power supply pressurizing device equipped with a plurality of welding jigs and an elevating function as another embodiment of the present invention.
Claims (1)
を多数備えた一式または複数式の溶接治具と、該溶接治
具に対応して架設した案内ガイド装置と、該案内ガイド
装置によつて自由に移動し、予め設定された位置で停止
させることが可能な給電用加圧装置とを有し、上記加圧
装置は二つのアームが加圧シリンダによつて開閉可能な
ごとく構成され、しかも該アームの各先端部には、溶接
トランスと電気的につながれた正具一対の給電接触片が
相対向する位置に装備され、上記給電接触片は所定位置
で上記シリンダの加圧動作によつて上記受電接触片を挟
圧して溶接電流の通電接続を行なうようにしたことを特
徴とする溶接電流接続装置。1. A welding jig or a plurality of welding jigs equipped with a large number of pairs of positive and negative power-receiving contact pieces necessary for energizing connection of welding current, a guide device installed corresponding to the welding jig, and a guide device installed by the guide device. and a power supply pressurizing device that can be freely moved and stopped at a preset position, and the pressurizing device is configured such that two arms can be opened and closed by a pressurizing cylinder, In addition, each end of the arm is equipped with a pair of power supply contact pieces that are electrically connected to a welding transformer at opposing positions, and the power supply contact pieces are held at a predetermined position by the pressurizing action of the cylinder. A welding current connecting device characterized in that the welding current is connected by pinching the power receiving contact piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP54159893A JPS5913948B2 (en) | 1979-12-10 | 1979-12-10 | Welding current connection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP54159893A JPS5913948B2 (en) | 1979-12-10 | 1979-12-10 | Welding current connection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5689391A JPS5689391A (en) | 1981-07-20 |
| JPS5913948B2 true JPS5913948B2 (en) | 1984-04-02 |
Family
ID=15703471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP54159893A Expired JPS5913948B2 (en) | 1979-12-10 | 1979-12-10 | Welding current connection device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5913948B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62166083A (en) * | 1986-01-14 | 1987-07-22 | Takao Kinzoku Kogyo Kk | Welding device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4842673U (en) * | 1971-09-20 | 1973-05-31 | ||
| JPS5340662A (en) * | 1976-09-28 | 1978-04-13 | Honda Motor Co Ltd | Electric power supplying method of multiple spot welding |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS579027Y2 (en) * | 1975-12-27 | 1982-02-20 |
-
1979
- 1979-12-10 JP JP54159893A patent/JPS5913948B2/en not_active Expired
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4842673U (en) * | 1971-09-20 | 1973-05-31 | ||
| JPS5340662A (en) * | 1976-09-28 | 1978-04-13 | Honda Motor Co Ltd | Electric power supplying method of multiple spot welding |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5689391A (en) | 1981-07-20 |
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