JPH09306276A - Spot welder - Google Patents
Spot welderInfo
- Publication number
- JPH09306276A JPH09306276A JP8143681A JP14368196A JPH09306276A JP H09306276 A JPH09306276 A JP H09306276A JP 8143681 A JP8143681 A JP 8143681A JP 14368196 A JP14368196 A JP 14368196A JP H09306276 A JPH09306276 A JP H09306276A
- Authority
- JP
- Japan
- Prior art keywords
- wire rod
- spot welding
- upper electrode
- electrode
- molding layer
- 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
Landscapes
- Wire Processing (AREA)
- Resistance Welding (AREA)
- Manufacture Of Switches (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、線材を切断し
て、連続的に被溶接材にスポット溶接するスポット溶接
装置の線材供給部と電極の構造に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a wire rod supply section and an electrode of a spot welding apparatus for cutting a wire rod and continuously spot welding the welded material.
【０００２】[0002]
【従来の技術】図５〜図７は、従来のスポット溶接装置
の構造を示すものであって、図５は溶接する線材を被溶
接材に設置するスポット溶接装置の部分構成配置図、図
６は切断された線材のスポット溶接時のスポット溶接装
置の部分構成配置図、図７はスポット溶接装置の上部電
極の斜視図である。スポット溶接は自動車のボデイや電
気製品等の薄板の組立に多く用いられている。比較的小
定格の電磁開閉器等接点の接点材料は銀合金によって構
成されているが、この銀合金からなる銀接点の製造にお
いても、被溶接材である銅合金板等の導体にチップ状の
銀線材をスポット溶接する方法が一般的に採用されてい
る。2. Description of the Related Art FIGS. 5 to 7 show the structure of a conventional spot welding apparatus. FIG. 5 is a partial structural layout view of the spot welding apparatus for installing a wire to be welded on a material to be welded. FIG. 7 is a partial structural layout view of a spot welding apparatus at the time of spot welding a cut wire rod, and FIG. 7 is a perspective view of an upper electrode of the spot welding apparatus. Spot welding is often used to assemble thin plates for automobile bodies and electric appliances. The contact material for contacts such as electromagnetic switches with a relatively small rating is made of silver alloy, but even in the manufacture of silver contacts made of this silver alloy, the conductor such as the copper alloy plate, which is the material to be welded, is chip-shaped. The method of spot welding a silver wire is generally adopted.
【０００３】上記した銀線材のスポット溶接による銀接
点の製造方法は、まず、図５に示すように、銀線材１を
焼き鈍し鋼からなる線材供給ノズル２のノズル端面部２
ａの貫通孔２ｃから矢印の方向に所定寸法突出させ、こ
の突出した線材１の上部に位置する電極ホルダー３にボ
ルト４にて支持された上部電極５を前記ノズル端面部２
ａに沿って矢印の方向に下降させて、上部電極５の端面
の周上に設けられた切刃部６により所定寸法のチップ状
に切断した線材１ａを下部電極７上に配してある導体８
上に設置させる。次に、図６に示すように、上部電極５
の切刃部６と下部電極７との間で線材１ａを押圧しなが
ら、溶接電流を前記上部電極５と下部電極７間に通電し
て線材１ａと導体８とをスポット溶接させた後に、プレ
ス成形して所定の形状の銀接点を構成した導体８を所定
寸法に切断して製作される。In the method of manufacturing a silver contact by spot welding of a silver wire rod as described above, first, as shown in FIG. 5, a nozzle end face portion 2 of a wire rod supply nozzle 2 made of annealed silver wire rod 1 is used.
The upper electrode 5 supported by the bolts 4 on the electrode holder 3 located above the protruding wire rod 1 is protruded from the through hole 2c of the a direction by a predetermined dimension, and the nozzle end face portion 2
A conductor in which a wire rod 1a, which is lowered in the direction of the arrow a and is cut into chips of a predetermined size by a cutting edge portion 6 provided on the circumference of the end surface of the upper electrode 5, is arranged on the lower electrode 7. 8
Install on top. Next, as shown in FIG.
While pressing the wire rod 1a between the cutting edge portion 6 and the lower electrode 7, the welding current is passed between the upper electrode 5 and the lower electrode 7 to spot-weld the wire rod 1a and the conductor 8, and then the press It is manufactured by cutting the conductor 8 formed into a predetermined shape to form a silver contact into a predetermined size.
【０００４】前記した上部電極５の切刃部６は、図７に
示すように銀・タングステン合金からなる電極５の両端
面の周上に径方向に伸びる線材１を覆う径を有する半円
筒状に切り欠いて構成されており、周方向に多数個設け
られている。そして、この切刃部６が形成されている上
部電極５は、その側面部が図６に示すように線材供給ノ
ズル２のノズル端面部２ａの面に平行配置するような平
面を有するように多角形柱状に構成されている。The cutting edge portion 6 of the above-mentioned upper electrode 5 has a semi-cylindrical shape having a diameter covering the wire rod 1 extending in the radial direction on the circumference of both end surfaces of the electrode 5 made of a silver-tungsten alloy as shown in FIG. It is formed by cutting out into a large number and is provided in the circumferential direction. The side surface of the upper electrode 5 on which the cutting edge portion 6 is formed has a flat surface arranged parallel to the surface of the nozzle end surface portion 2a of the wire rod supply nozzle 2 as shown in FIG. It has a prismatic shape.
【０００５】[0005]
【発明が解決しようとする課題】前記した銀接点のスポ
ット溶接による製造方法において、図６に示すように切
断された所定寸法のチップ状の線材１ａが導体８にスポ
ット溶接される時に、溶接時の溶接電流により発生する
上部電極部５及び線材１ａと導体８と間のスパークによ
る線材供給ノズル２の損傷を回避するために、線材供給
ノズル２のノズル端面部２ａの上下両端部を切り欠いた
切り欠き部２ｂを設けタた部電極部５の下端部とノズル
端面部２ａとの間に空間部を有する構造としている。こ
のために、切断されたチップ状の線材１ａがスポット溶
接時に横方向に移動して位置づれが生じ易く、位置ずれ
して溶接された後のプレス成形後に線材１ａが所定の導
体８上の定位置に機械的に戻されるので、溶接接合部の
機械的強度の低下を招き一定品質の接点が得られないこ
とがあるという問題があった。In the manufacturing method by spot welding of silver contacts described above, when the tip-shaped wire rod 1a having a predetermined size cut as shown in FIG. In order to avoid damage to the wire rod supply nozzle 2 due to sparks between the upper electrode portion 5 and the wire rod 1a and the conductor 8 generated by the welding current of the above, the upper and lower ends of the nozzle end face portion 2a of the wire rod supply nozzle 2 are notched. The structure is such that there is a space between the lower end portion of the partial electrode portion 5 provided with the cutout portion 2b and the nozzle end surface portion 2a. For this reason, the cut tip-shaped wire 1a is apt to move laterally during spot welding to cause misalignment, and the wire 1a is fixed on a predetermined conductor 8 after press forming after being displaced and welded. Since it is mechanically returned to the position, there is a problem that the mechanical strength of the welded joint is deteriorated and a contact of constant quality may not be obtained.
【０００６】また、線材１を切断する際に出る小さな切
断屑によって、スポット溶接時特有の散りが発生して、
接点の品質及び外観上も問題となっていた。更に、上部
電極５は溶接時の高温に常時曝され、また上部電極５及
び線材１ａと導体８との間に発生するスパークによる損
傷が著しいために、スポット溶接製造ラインを停止させ
て、スパークにより損傷した切刃部６を図７に示す周方
向に設けられた別の切刃部６の位置へ順次交換する作業
や、上部電極５全体を交換する作業を必要として製造作
業効率が悪かった。[0006] In addition, small cutting scraps produced when the wire 1 is cut causes scattering peculiar to spot welding,
There were also problems with the quality and appearance of the contacts. Further, since the upper electrode 5 is constantly exposed to the high temperature during welding, and the damage caused by the spark generated between the upper electrode 5 and the wire 1a and the conductor 8 is remarkable, the spot welding production line is stopped and the spark is generated. The manufacturing work efficiency was poor because it was necessary to sequentially replace the damaged cutting edge portion 6 with another cutting edge portion 6 provided in the circumferential direction shown in FIG. 7 and to replace the entire upper electrode 5.
【０００７】この発明の課題は、前記した問題点を解決
しスポット溶接時において位置決め精度が良く、溶接時
におけるスパークによる電極の損傷が少ない構造からな
るスポット溶接装置を提供することにある。An object of the present invention is to solve the above-mentioned problems and to provide a spot welding apparatus having a structure with good positioning accuracy during spot welding and less damage to the electrode due to sparks during welding.
【０００８】[0008]
【課題を解決するための手段】上記した課題を解決する
ために、この発明は、線材を供給するノズルの端面に沿
って下降する上部電極の端面の周上に設けられた切刃部
にてチップ状に切断した線材を、下部電極上に配された
導体等の被溶接材に前記上部電極にて圧接して溶接電流
を通電してスポット溶接をするスポット溶接装置におい
て、線材を供給するノズル端面部と、このノズル端面部
と対向する上部電極の側面部とにそれぞれセラミックス
成形材層を設ける構造を採用するものとする。これによ
り、線材を供給するノズル端面に設けた耐アーク性に優
れているセラミックス成形材層を、焼き鈍し鋼からなる
線材供給ノズルのノズル端面部のスパークに曝される個
所に設ける構造とすることにより、従来のように線材供
給ノズルに切り欠き部を設ける構成とする必要がないの
で、前記ノズル端面部に配されているセラミックス成形
層が切断されたチップ状の線材の横ずれを防止する絶縁
性の位置決めガイドの機能を有する構成とすることがで
きる。In order to solve the above-mentioned problems, the present invention uses a cutting edge portion provided on the circumference of the end face of the upper electrode which descends along the end face of the nozzle for supplying the wire. A nozzle for supplying a wire rod in a spot welding apparatus that performs spot welding by pressing a wire material cut in a chip shape onto a material to be welded such as a conductor arranged on a lower electrode at the upper electrode to apply a welding current to perform spot welding. A structure in which a ceramics molding material layer is provided on each of the end surface portion and the side surface portion of the upper electrode facing the end surface portion of the nozzle is adopted. With this structure, the ceramic molding material layer having excellent arc resistance provided on the end face of the nozzle for supplying the wire is provided at the portion exposed to the spark on the nozzle end face of the wire supplying nozzle made of annealed steel. Since it is not necessary to provide a cutout portion in the wire rod supply nozzle as in the conventional case, an insulating material that prevents lateral displacement of the chip-shaped wire rod in which the ceramics molding layer arranged at the nozzle end face portion is cut It can be configured to have a function of a positioning guide.
【０００９】また、銀・タングステン合金からなる上部
電極の側面部にリング状の絶縁性のセラミックス成形材
層を挿着して覆って設ける構造とすることにより、上部
電極及び線材と被溶接材料との間のスパークの発生を阻
止することにより電極の損傷を防止するとともに、セラ
ミックスと金属との親和性が劣るために、上部電極のセ
ラミックス成形層の切刃部での線材の銀合金との凝着現
象が起こらず線材の切断屑が出にくくなるために散りの
発生を防止することができる。Further, by adopting a structure in which a ring-shaped insulating ceramics molding material layer is inserted and covered on the side surface of the upper electrode made of a silver-tungsten alloy, the upper electrode, the wire and the material to be welded are provided. Electrode damage is prevented by preventing the generation of sparks between the electrodes, and because the affinity between the ceramic and the metal is poor, the wire rod and silver alloy coagulate at the cutting edge of the ceramic molding layer of the upper electrode. Since the sticking phenomenon does not occur and the cutting waste of the wire material does not easily come out, it is possible to prevent the occurrence of scattering.
【００１０】更に、線材供給ノズル端面部と、上部電極
の側面部とに形成するセラミックス成形材が高温での絶
縁特性が優れ、熱膨張係数が小さく、かつ耐熱衝撃性の
優れたジルコニアからなるものとすることにより、長時
間スポット溶接可能な寿命特性の優れたスポット溶接装
置が得られる。Further, the ceramic molding material formed on the end surface of the wire rod supply nozzle and the side surface of the upper electrode is made of zirconia which has excellent insulation properties at high temperature, a small thermal expansion coefficient and excellent thermal shock resistance. By doing so, it is possible to obtain a spot welding apparatus having excellent life characteristics capable of spot welding for a long time.
【００１１】[0011]
【発明の実施の形態】以下この発明の実施の形態を図に
基づいて説明する。図１〜図４は、この発明の実施の形
態からなるスポット溶接装置の構造を示すものであっ
て、図１は線材を切断する時のスポット溶接装置の各構
成部の配置図断面図、図２は切断された線材のスポット
溶接時のスポット溶接装置の部分構成配置図、図３は線
材供給ノズルの斜視図、図４は上部電極と、この上部電
極の側面に挿着されるセラミックス成形層との斜視図で
ある。図１及び図２に示すように、この発明の実施の形
態からなるスポット溶接装置は、前記した従来の図５及
び図６に示す線材供給ノズル２と上部電極５とが対向す
るそれぞれの側面部に、セラミックス成形層９及び１０
を設けている構成からなっている。Embodiments of the present invention will be described below with reference to the drawings. 1 to 4 show the structure of a spot welding apparatus according to an embodiment of the present invention, and FIG. 1 is a layout view sectional view of each component of the spot welding apparatus when cutting a wire rod, FIG. 2 is a partial configuration layout view of a spot welding apparatus at the time of spot welding of a cut wire rod, FIG. 3 is a perspective view of a wire rod supply nozzle, FIG. 4 is an upper electrode, and a ceramics molding layer inserted and attached to a side surface of the upper electrode. FIG. As shown in FIGS. 1 and 2, in the spot welding apparatus according to the embodiment of the present invention, the side surface portions of the wire rod supply nozzle 2 and the upper electrode 5 shown in FIGS. The ceramic molding layers 9 and 10
Is provided.
【００１２】前記した線材供給ノズル２の端面部２ａに
設けたセラミックス成形層９は、図３に示すようにノズ
ル端面部２ａに線材供給ノズル２の貫通孔２ｃと連通す
る貫通孔３ａを設けた断面十字状のジルコニアからなる
セラミックス成形体から形成されており、配置されたセ
ラミックス成形層９の端面が線材供給ノズル２のノズル
端面部２ａと同一面となるようにノズル端面部２ａに埋
め込まれて、耐熱接着材にて固着して構成されている。As shown in FIG. 3, the ceramic molding layer 9 provided on the end face portion 2a of the wire rod supply nozzle 2 has a through hole 3a communicating with the through hole 2c of the wire rod supply nozzle 2 at the nozzle end face portion 2a. It is formed from a ceramic molded body made of zirconia having a cross-shaped cross section, and is embedded in the nozzle end surface portion 2a so that the end surface of the ceramic molded layer 9 arranged is flush with the nozzle end surface portion 2a of the wire rod supply nozzle 2. , And is fixed by a heat resistant adhesive.
【００１３】一方、上部電極５の側面に設けられたセラ
ミックス成形層１０は、図４に示すように、円筒状の上
部電極５ａの側面にジルコニアからなるリング状のセラ
ミックス成形体を挿着して耐熱接着材にて接着固定して
構成されている。このセラミックス成形層１０の端面の
周上には、上部電極５ａの端面に設けられた切刃部６と
連通する切刃部１１が設けられて、これらの切刃部６と
１１とで図１に示す線材供給ノズル２から供給される線
材１を切断する切刃部を構成している。この切刃部６と
１１とでなる切刃部は、セラミックス成形層１０の両端
面の周上に対向して予備に２個所設けられており、図７
に示した従来の上部電極５の場合と同様に、上部電極５
ａの上下位置を交換して使用できるようにしてる。On the other hand, as shown in FIG. 4, the ceramic molded layer 10 provided on the side surface of the upper electrode 5 is obtained by inserting a ring-shaped ceramic molded body made of zirconia on the side surface of the cylindrical upper electrode 5a. It is configured by bonding and fixing with a heat resistant adhesive. On the circumference of the end surface of the ceramics molding layer 10, a cutting edge portion 11 communicating with the cutting edge portion 6 provided on the end surface of the upper electrode 5a is provided. A cutting blade portion for cutting the wire rod 1 supplied from the wire rod supply nozzle 2 shown in FIG. Two cutting edge portions composed of the cutting edge portions 6 and 11 are provided in a preliminary manner so as to oppose each other on the circumference of both end surfaces of the ceramics molding layer 10.
As in the case of the conventional upper electrode 5 shown in FIG.
The upper and lower positions of a are exchanged so that they can be used.
【００１４】また、線材供給ノズル２のノズル端部面２
ａと対向する切刃部１１が形成されている上部電極５ａ
のセラミックス成形層１０の面は、図４に示すように、
前記のノズル端面部２ａに設けられたセラミックス成形
層９の面と相対して前記した切刃部６と１１とで線材１
を切断する機能を有するようにするために、平坦に加工
された側面部１０ａを形成している。そして、セラミッ
クス成形層１０を構成するリング状のセラミックス成形
体にはスリット１０ｂが設けられており、スポット溶接
時に上部電極５ａの温度上昇による熱膨張により発生す
るセラミックス成形層１０の伸びを、前記スリット１０
ｂの間隙部で吸収してセラミックス成形層１０に加わる
熱応力を緩和するようにしている。Further, the nozzle end face 2 of the wire feed nozzle 2
a upper electrode 5a on which a cutting edge portion 11 facing a is formed
As shown in FIG. 4, the surface of the ceramic molded layer 10 of
The wire rod 1 includes the cutting edge portions 6 and 11 facing the surface of the ceramics molding layer 9 provided on the nozzle end surface portion 2a.
In order to have a function of cutting the side surface, the side surface portion 10a processed to be flat is formed. A slit 10b is provided in the ring-shaped ceramic molded body that constitutes the ceramic molded layer 10, and the elongation of the ceramic molded layer 10 caused by thermal expansion due to the temperature rise of the upper electrode 5a at the time of spot welding is applied to the slit. 10
The thermal stress absorbed in the gap portion b and applied to the ceramic molded layer 10 is relieved.
【００１５】前記した構成からなるスポット溶接装置に
おいて、切断されたチップ状の線材１ａの導体８へのス
ポット溶接時には、図２に示すように線材１ａのノズル
端面部２ａ側の側面がセラミックス成形層１０の面で接
触保持されて導体８上の所定位置に位置決めされた状態
で溶接されるので、スポット溶接時に位置ずれを起こす
ことを防止することができる。また、前記した上部電極
５ａのセラミックス成形層１０は、上部電極５ａの側面
部にのみ覆ってリング状に設けてあるので、スポット溶
接時の溶接電流の通電を阻害することなく、かつ、スポ
ット溶接時の上部電極５ａ及び線材１と導体８との間に
発生するスパークの発生を防止することができる。In the spot welding apparatus having the above-described structure, when the cut tip-shaped wire 1a is spot-welded to the conductor 8, as shown in FIG. 2, the side surface of the wire 1a on the nozzle end face 2a side is a ceramic forming layer. Since the welding is performed while being held in contact with the surface 10 and being positioned at a predetermined position on the conductor 8, it is possible to prevent the positional deviation from occurring during spot welding. Moreover, since the above-mentioned ceramics forming layer 10 of the upper electrode 5a is provided in a ring shape so as to cover only the side surface of the upper electrode 5a, it does not hinder the conduction of the welding current during spot welding and is spot-welded. It is possible to prevent the generation of sparks between the upper electrode 5a and the wire 1 and the conductor 8 at that time.
【００１６】[0016]
【発明の効果】以上のように、この発明は、スポット溶
接装置を構成する線材を供給するノズルのノズル端面部
と、このノズル端面部と対向する上部電極の側面部とに
それぞれセラミックス成形材層からなる絶縁体を設ける
構成とすることにより、スポット溶接時のスパークによ
る上部電極の損傷を防止して大幅に電極寿命を伸ばすこ
とができるので、従来のように電極の交換等の作業を必
要とせず、また被溶接材の導体上に設置した線材の位置
決め精度を向上させることができるので、後工程のプレ
ス作業での位置ズレを防止した溶接接合部の機械的強度
の良好な品質の安定した接点をより高速に作成でき、接
点の製造作業性を向上させることができる。As described above, according to the present invention, the ceramic molding material layer is provided on each of the nozzle end face portion of the nozzle for supplying the wire material forming the spot welding device and the side face portion of the upper electrode facing the nozzle end face portion. By using an insulator made of, it is possible to prevent damage to the upper electrode due to sparks during spot welding and significantly extend the life of the electrode. In addition, since it is possible to improve the positioning accuracy of the wire rod installed on the conductor of the material to be welded, the mechanical strength of the welded joint is stable and the quality of the welded joint is stable, which prevents displacement in the press work in the subsequent process. The contact can be created at higher speed, and the workability of manufacturing the contact can be improved.
【００１７】また、この発明からなるスポット溶接装置
によって、線材切断時に発生する切断屑によるスポット
溶接時の散りの発生を防止することができるので、更に
溶接接合部の品質の向上を図れることができる。そし
て、この発明からなるスポット溶接装置は、スポット溶
接時での溶接性能を向上させることができることから、
従来のスポット装置では導体との溶接接合性が悪く適用
が不可能であった融点の高い酸化カドニュウム銀合金等
からなる接点の実用化をも可能とすることができ、継電
器の接点の大幅な電気的寿命の向上の達成に寄与するこ
とができた。Further, since the spot welding apparatus according to the present invention can prevent the scattering of the cutting scraps generated at the time of cutting the wire rod during the spot welding, the quality of the welded joint can be further improved. . And, the spot welding apparatus according to the present invention can improve the welding performance at the time of spot welding,
It is possible to put into practical use a contact made of a high-melting-point cadmium oxide silver alloy, which could not be applied due to the poor weldability of the conductor to the conventional spot device. It was possible to contribute to the achievement of the improvement of the dynamic life.
【図１】この発明の実施の形態からなる線材を切断する
時のスポット溶接装置の部分構成配置図である。FIG. 1 is a partial configuration layout diagram of a spot welding apparatus when cutting a wire rod according to an embodiment of the present invention.
【図２】切断された線材のスポット溶接時のスポット溶
接装置の部分構成配置図である。FIG. 2 is a partial configuration layout diagram of a spot welding apparatus at the time of spot welding a cut wire rod.
【図３】この発明の実施の形態からなる線材供給ノズル
の斜視図である。FIG. 3 is a perspective view of a wire rod supply nozzle according to an embodiment of the present invention.
【図４】この発明の実施の形態からなる上部電極の側面
に挿着されるセラミックス成形層の斜視図である。FIG. 4 is a perspective view of a ceramics molding layer inserted and attached to a side surface of an upper electrode according to an embodiment of the present invention.
【図５】従来の溶接する線材を被溶接材に設置するスポ
ット溶接装置の部分構成配置図である。FIG. 5 is a partial configuration layout diagram of a spot welding apparatus for installing a conventional wire rod to be welded on a material to be welded.
【図６】従来の切断された線材のスポット溶接時のスポ
ット溶接装置の部分構成配置図である。FIG. 6 is a partial configuration layout diagram of a spot welding apparatus at the time of spot welding a cut wire according to the related art.
【図７】従来のスポット溶接装置の上部電極の斜視図で
ある。FIG. 7 is a perspective view of an upper electrode of a conventional spot welding apparatus.
１ 線材 ２ 線材供給ノズル ２ａ ノズル端部 ３ａ 貫通孔 ５ 上部電極 ５ａ 上部電極 ６ 切刃部 ７ 下部電極 ９ セラミックス成形層 １０ セラミックス成形層 １０ｂ スリット １１ 切刃部 1 Wire Rod 2 Wire Rod Nozzle 2a Nozzle End 3a Through Hole 5 Upper Electrode 5a Upper Electrode 6 Cutting Edge 7 Lower Electrode 9 Ceramics Forming Layer 10 Ceramics Forming Layer 10b Slit 11 Cutting Edge
Claims (3)
する上部電極の端面の周上に設けられた切刃部にてチッ
プ状に切断した前記線材を、下部電極上に配された被溶
接材に前記上部電極にて圧接して、上部電極と下部電極
間に溶接電流を通電しスポット溶接をするスポット溶接
装置において、線材を供給するノズル端面部と、このノ
ズル端面部と対向する上部電極の側面部とにそれぞれセ
ラミックス成形材層を設けたことを特徴とするスポット
溶接装置。Claim: What is claimed is: 1. A wire arranged on a lower electrode, which is cut into chips by a cutting edge portion provided on the periphery of the end surface of an upper electrode that descends along the end surface of a nozzle for supplying the wire. In a spot welding apparatus in which a welding current is pressure-welded to a welding material and a welding current is passed between the upper electrode and the lower electrode to perform spot welding, a nozzle end face part for supplying a wire rod and an upper part facing the nozzle end face part. A spot welding apparatus characterized in that a ceramic molding material layer is provided on each of the side surfaces of an electrode.
ル端面部と上部電極の側面部とに設けられたセラミック
ス成形材層がジルコニアからなることを特徴とするスポ
ット溶接装置。2. The spot welding apparatus according to claim 1, wherein the ceramic molding material layer provided on the nozzle end surface portion and the side surface portion of the upper electrode is made of zirconia.
られたセラミックス成形層が、端部に切刃部を有するリ
ング状のセラミックス成形体からなり、前記切刃部を上
部電極に設けられた切刃部に連通して配置するように前
記上部電極の外周に挿着して構成したことを特徴とする
スポット溶接装置。3. The ceramic forming layer provided on the side surface of the upper electrode according to claim 1 is formed of a ring-shaped ceramic forming body having a cutting edge portion at an end thereof, and the cutting edge portion is used as an upper electrode. A spot welding apparatus, which is configured to be inserted into the outer periphery of the upper electrode so as to be arranged so as to communicate with a provided cutting edge portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14368196A JP3654384B2 (en) | 1996-05-14 | 1996-05-14 | Spot welding equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14368196A JP3654384B2 (en) | 1996-05-14 | 1996-05-14 | Spot welding equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09306276A true JPH09306276A (en) | 1997-11-28 |
| JP3654384B2 JP3654384B2 (en) | 2005-06-02 |
Family
ID=15344478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14368196A Expired - Fee Related JP3654384B2 (en) | 1996-05-14 | 1996-05-14 | Spot welding equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3654384B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106624273A (en) * | 2016-11-18 | 2017-05-10 | 广州阿比泰克焊接技术有限公司 | Wire shearing device and method for welding robot cleaning gun system |
| CN107262885A (en) * | 2017-07-25 | 2017-10-20 | 成都焊研科技有限责任公司 | A kind of automatic clipping apparatus of vertical masonry joint submerged arc welding machine welding wire |
-
1996
- 1996-05-14 JP JP14368196A patent/JP3654384B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106624273A (en) * | 2016-11-18 | 2017-05-10 | 广州阿比泰克焊接技术有限公司 | Wire shearing device and method for welding robot cleaning gun system |
| CN106624273B (en) * | 2016-11-18 | 2019-10-01 | 宾采尔(广州)焊接技术有限公司 | Silk device and method are cut for the clear gun system of welding robot |
| CN107262885A (en) * | 2017-07-25 | 2017-10-20 | 成都焊研科技有限责任公司 | A kind of automatic clipping apparatus of vertical masonry joint submerged arc welding machine welding wire |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3654384B2 (en) | 2005-06-02 |
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