JPH07106460B2 - Resistance welding equipment - Google Patents
Resistance welding equipmentInfo
- Publication number
- JPH07106460B2 JPH07106460B2 JP1032399A JP3239989A JPH07106460B2 JP H07106460 B2 JPH07106460 B2 JP H07106460B2 JP 1032399 A JP1032399 A JP 1032399A JP 3239989 A JP3239989 A JP 3239989A JP H07106460 B2 JPH07106460 B2 JP H07106460B2
- Authority
- JP
- Japan
- Prior art keywords
- transformer
- electrode
- gun arm
- resistance welding
- rectifier
- 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 - Fee Related
Links
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- Resistance Welding (AREA)
Description
【発明の詳細な説明】 ［産業上の利用分野］ 本発明は抵抗溶接装置に関し、一層詳細には、変圧器の
二次コイル側に整流器を接続すると共に、一方の電極を
取着したガンアームに前記整流器を直接係合し、前記一
方の電極と他方の電極とでワークを挟持して直流電流を
供給することにより前記ワークを溶接するよう構成した
抵抗溶接装置に関する。Description: TECHNICAL FIELD The present invention relates to a resistance welding device, and more particularly, to a gun arm having one electrode attached to a rectifier connected to the secondary coil side of a transformer. The present invention relates to a resistance welding apparatus configured to weld a work by directly engaging the rectifier, sandwiching the work with the one electrode and the other electrode, and supplying a direct current to the work.
［発明の背景］ 従来から、変圧器の二次コイルの両端部に整流器を接続
したトランス装置を用い、被溶接物を一組の電極で挟持
し、前記電極間に直流電流を供給して溶接作業を行うよ
う構成した抵抗溶接装置が採用されている。すなわち、
この種の抵抗溶接装置は、実際上、変圧器の二次コイル
の両端部に夫々第１の導電板を接続し、前記第１導電板
に整流器と第２の導電板とを重畳するように取着すると
共に、この第２導電板には可撓性のオンス銅板を介して
ガンアームを接続している。BACKGROUND OF THE INVENTION Conventionally, a transformer device in which a rectifier is connected to both ends of a secondary coil of a transformer is used to sandwich an object to be welded with a pair of electrodes, and a direct current is supplied between the electrodes to perform welding. A resistance welding device configured to perform the work is employed. That is,
In this type of resistance welding apparatus, in practice, a first conductive plate is connected to both ends of a secondary coil of a transformer, and a rectifier and a second conductive plate are superposed on the first conductive plate. While being attached, the gun arm is connected to the second conductive plate via a flexible ounce copper plate.
然しながら、この場合、実質的に整流器に連結される第
２導電板とオンス銅板並びに前記オンス銅板とガンアー
ムとの各接合部位における接触抵抗や、前記オンス銅板
自体の内部抵抗等により多くの電力損失が発生してしま
う。特に、厚板またはメッキ鋼板の溶接時のように、比
較的大電流を必要とする際、前記接触抵抗や内部抵抗に
よる著しい電力損失が惹起し、電極に対し効率的に大電
流を供給することが出来ないという不都合が指摘されて
いる。However, in this case, a large amount of power loss is caused by the contact resistance at the joint portions of the second conductive plate and the ounce copper plate and the ounce copper plate and the gun arm which are substantially connected to the rectifier, and the internal resistance of the ounce copper plate itself. Will occur. In particular, when a relatively large current is required, such as when welding thick plates or plated steel plates, significant power loss is caused by the contact resistance and internal resistance, and a large current can be efficiently supplied to the electrodes. It is pointed out that the inconvenience that it cannot do is not possible.
［発明の目的］ 本発明は前記の不都合を克服するためになされたもので
あって、変圧器の二次コイルから導出される導電体に整
流器の一端を接続すると共に、前記整流器の他端を一方
の溶接用電極を取着したガンアームの端部に直接係合す
るよう構成し、これによって、従来、整流器とガンアー
ムとの間に介在していた導電板並びにオンス銅板を不要
とし、接触抵抗を著しく減少させて電力損失を阻止出
来、一組の溶接用電極に対し直流電流を効率的に供給す
ることを可能にした抵抗溶接装置を提供することを目的
とする。[Object of the Invention] The present invention has been made in order to overcome the above-mentioned inconveniences, and one end of a rectifier is connected to a conductor led from a secondary coil of a transformer, and the other end of the rectifier is connected. It is configured so that it directly engages the end of the gun arm to which one welding electrode is attached, which eliminates the need for a conductive plate and an ounce copper plate that were conventionally interposed between the rectifier and the gun arm, thus reducing contact resistance. An object of the present invention is to provide a resistance welding apparatus capable of significantly reducing power loss and preventing a power loss and efficiently supplying a direct current to a set of welding electrodes.
［目的を達成するための手段］ 前記の目的を達成するために、本発明は変圧器と、前記
変圧器の二次コイル側に接続される整流器と、夫々の溶
接用電極を互いに対向して取着する開閉自在な一組のガ
ンアームとを具備すると共に、一方のガンアームに前記
整流器を直接係合するように構成することを特徴とす
る。[Means for Achieving the Purpose] In order to achieve the above-mentioned object, the present invention provides a transformer, a rectifier connected to the secondary coil side of the transformer, and welding electrodes facing each other. And a pair of openable and closable gun arms to be attached, and one of the gun arms is directly engaged with the rectifier.
［実施態様］ 次に、本発明に係る抵抗溶接装置について好適な実施態
様を挙げ、添付の図面を参照しながら以下詳細に説明す
る。[Embodiment] Next, a preferred embodiment of the resistance welding apparatus according to the present invention will be given and described in detail below with reference to the accompanying drawings.
第１図および第２図において、参照符号10は本実施態様
に係る抵抗溶接装置を示し、この抵抗溶接装置10は実質
的にロボットアーム12の先端部に図示しないボルト等に
より固定される支持用ブラケット14を有する。前記ブラ
ケット14は、図中、その上部側を断面コ字状に屈曲して
鉛直下方向に平行に延在し、その両下端部に一組の円筒
部16a、16bを形成すると共に、前記円筒部16a、16bを介
して本体部18がフローチング状態で支持される。1 and 2, reference numeral 10 indicates a resistance welding apparatus according to the present embodiment, and the resistance welding apparatus 10 is substantially fixed to the tip of the robot arm 12 by a bolt or the like (not shown) for supporting. It has a bracket 14. The bracket 14, in the drawing, the upper side thereof is bent in a U-shaped cross section and extends parallel to the vertical downward direction, and a pair of cylindrical portions 16a and 16b are formed at both lower end portions thereof, and the cylinder is formed. The body portion 18 is supported in a floating state via the portions 16a and 16b.
すなわち、前記本体部18は後述するシリンダの両端に固
着される一対の保持板体20a、20bを含み、前記保持板体
20aの上部に略90゜屈曲させて取付部22を形成する。一
方、保持板体20bは板状を呈しており、前述した保持板
体20aとこの保持板体20bとに比較的長尺なガイドバー24
a、24bを橋架する。この場合、前記ガイドバー24a、24b
はブラケット14の円筒部16a、16bに嵌合すると共に、前
記円筒部16a、16bと保持板体20a、20bとの間にあって夫
々のガイドバー24a、24bにコイルスプリング26a、26aと
26b、26bを外装する。That is, the main body portion 18 includes a pair of holding plate bodies 20a and 20b fixed to both ends of a cylinder described later,
A mounting portion 22 is formed by bending the upper portion of 20a by approximately 90 °. On the other hand, the holding plate body 20b has a plate-like shape, and the holding plate body 20a and the holding plate body 20b described above have a relatively long guide bar 24.
Bridge a and 24b. In this case, the guide bars 24a, 24b
Is fitted to the cylindrical portions 16a, 16b of the bracket 14, and between the cylindrical portions 16a, 16b and the holding plate bodies 20a, 20b and the coil springs 26a, 26a on the respective guide bars 24a, 24b.
Exterior of 26b and 26b.
次いで、保持板体20aの取付部22に絶縁板体28を介して
固定ガンアーム30を取着する。前記固定ガンアーム30
は、図中、水平方向に延在した後鉛直下方向に屈曲し、
その一端部に第１の電極32を取着する一方、当該固定ガ
ンアーム30の他端部に板状の連結部34を形成する（第４
図参照）。さらに、前記固定ガンアーム30内には第１電
極32の近傍まで延在すると共に、その両端を連結部34か
ら外方に開口する冷却用通路36を形成しており、前記連
結部34にこの通路36の夫々の開口端にあってニップル38
a、38bを取着する（第２図参照）。Next, the fixed gun arm 30 is attached to the mounting portion 22 of the holding plate body 20a via the insulating plate body 28. The fixed gun arm 30
In the figure, after extending horizontally, bend vertically downward,
The first electrode 32 is attached to one end of the fixed gun arm 30, and the plate-shaped connecting portion 34 is formed on the other end of the fixed gun arm 30 (fourth).
See figure). Further, a cooling passage 36 is formed in the fixed gun arm 30 so as to extend to the vicinity of the first electrode 32, and both ends thereof are opened outward from the connecting portion 34. The cooling passage 36 is formed in the connecting portion 34. Nipple 38 at the open end of each of the 36
Attach a and 38b (see Fig. 2).
第４図および第５図に示すように、固定ガンアーム30の
連結部34に整流器40a、40bを介して変圧器42を固定す
る。すなわち、前記変圧器42の図示しない二次コイルの
巻き始め端部および巻き終り端部に導電体としての電極
板44a、44bの一端部を係着し、前記電極板44a、44bの他
端部は互いに平行に且つ所定の間隔離間して外方に延在
する。一方、前記二次コイルの中間部からセンタタップ
端子板46が導出され、このセンタタップ端子板46は屈曲
して前記電極板44a、44bから離間する方向に延在してい
る。また、変圧器42の内部に冷却用通路47が画成され、
この通路47は電極板44a、44bの端部から外方に開口する
と共に、夫々の開口端にニップル48a、48bが取着される
（第２図参照）。As shown in FIGS. 4 and 5, the transformer 42 is fixed to the connecting portion 34 of the fixed gun arm 30 via the rectifiers 40a and 40b. That is, one end of the electrode plates 44a, 44b as conductors is attached to the winding start end and the winding end end of the secondary coil (not shown) of the transformer 42, and the other end of the electrode plates 44a, 44b. Extend parallel to each other and are spaced apart by a predetermined distance. On the other hand, a center tap terminal plate 46 is led out from an intermediate portion of the secondary coil, and the center tap terminal plate 46 is bent and extends in a direction away from the electrode plates 44a and 44b. Further, a cooling passage 47 is defined inside the transformer 42,
The passage 47 opens outward from the ends of the electrode plates 44a and 44b, and nipples 48a and 48b are attached to the respective open ends (see FIG. 2).
そこで、固定ガンアーム30の連結部34の両側面に整流器
40a、40bの一端側を直接当接させ、前記整流器40a、40b
の他端側に変圧器42から延在する電極板44a、44bを係合
する。その際、連結部34と電極板44a、44bとの間に絶縁
板体52a、52bを配設すると共に、前記絶縁板体52a、52b
には整流器40a、40bを挿通させるための開口部54a、54b
を形成する。さらに、電極板44a、44bの外面側に皿ばね
56a、56bを介して押え板58a、58bを配設し、前記押え板
58a、58b、電極板44a、44b、絶縁板体52a、52bおよび連
結部34に複数のボルト60を一体的に挿通し、夫々の端部
にナット62を螺合する。これによって、固定ガンアーム
30に対し整流器40a、40bを介して変圧器42を装着する。Therefore, the rectifier is installed on both sides of the connecting portion 34 of the fixed gun arm 30.
Directly abut one end side of the 40a, 40b, the rectifier 40a, 40b
The electrode plates 44a and 44b extending from the transformer 42 are engaged with the other end side of the. At that time, the insulating plates 52a and 52b are arranged between the connecting portion 34 and the electrode plates 44a and 44b, and the insulating plates 52a and 52b are provided.
Openings 54a, 54b for inserting the rectifiers 40a, 40b.
To form. Further, the disc springs are attached to the outer surfaces of the electrode plates 44a and 44b.
Presser plates 58a and 58b are arranged via 56a and 56b, and
A plurality of bolts 60 are integrally inserted into 58a, 58b, electrode plates 44a, 44b, insulating plate bodies 52a, 52b, and connecting portion 34, and nuts 62 are screwed into the respective end portions. This allows the fixed gun arm
A transformer 42 is attached to 30 through rectifiers 40a and 40b.
なお、電極板44a、44bには必要に応じて電気絶縁体であ
る樹脂系材料を用いて補強部材63を一体的に設ける。こ
のため、電極板44a、44bと補強部材63により変圧器42を
強固に保持することが出来る。It should be noted that the electrode plates 44a and 44b are integrally provided with a reinforcing member 63 using a resin material that is an electrical insulator, if necessary. Therefore, the transformer 42 can be firmly held by the electrode plates 44a and 44b and the reinforcing member 63.
一方、本体部18には保持板体20a、20bの間にあってシリ
ンダ64を設け、このシリンダ64から保持板体20a側に延
在するピストンロッド66に可動ガンアーム68が固着され
る。前記可動ガンアーム68の端部には第１電極32と対向
して第２の電極70を装着すると共に、この可動ガンアー
ム68内には冷却用通路72を形成して前記通路72の外方に
開口する両開口端にニップル74a、74bを取着しておく。
さらに、可動ガンアーム68には給電部材76の一端が係着
され、この給電部材76の他端部と変圧器42のセンタタッ
プ端子板46とに可撓性を有するオンス銅板78の両端部を
接続する。なお、給電部材76には円筒状を呈する絶縁部
材80を配設し、前記絶縁部材80にガイドバー24aを嵌合
する。On the other hand, a cylinder 64 is provided in the main body portion 18 between the holding plate bodies 20a and 20b, and a movable gun arm 68 is fixed to a piston rod 66 extending from the cylinder 64 to the holding plate body 20a side. A second electrode 70 is attached to the end of the movable gun arm 68 so as to face the first electrode 32, and a cooling passage 72 is formed in the movable gun arm 68 to open outside the passage 72. The nipples 74a and 74b are attached to both open ends.
Further, one end of a power supply member 76 is attached to the movable gun arm 68, and both ends of a flexible ounce copper plate 78 are connected to the other end of the power supply member 76 and the center tap terminal plate 46 of the transformer 42. To do. An insulating member 80 having a cylindrical shape is arranged on the power supply member 76, and the guide bar 24a is fitted to the insulating member 80.
本実施態様に係る抵抗溶接装置は基本的には以上のよう
に構成されるものであり、次にその作用並びに効果につ
いて説明する。The resistance welding apparatus according to the present embodiment is basically constructed as described above, and its operation and effect will be described next.
先ず、２枚のワークW1、W2の被溶接部位を重畳させてお
き、図示しないロボット装置の駆動作用下にロボットア
ーム12を介し当該抵抗溶接装置10を前記ワークW1、W2の
所定の被溶接部位まで移送する。その際、予め第１電極
32と第２電極70とをワークW1、W2の厚さに対応して離間
させておき、前記第１電極32と前記第２電極70とが所定
の被溶接部位に至る際、シリンダ64を駆動する。このた
め、ピストンロッド66がワークW2側に変位し、このピス
トンロッド66に固着されている可動ガンアーム68を介し
第２電極70が前記ワークW2に係合する。First, the workpieces of the two workpieces W 1 and W 2 are overlapped with each other, and the resistance welding device 10 is moved to a predetermined position of the workpieces W 1 and W 2 via a robot arm 12 under the driving action of a robot device (not shown). Transfer to the welded part. In that case, the first electrode in advance
When the first electrode 32 and the second electrode 70 reach a predetermined welded portion, the cylinder 64 is separated from the second electrode 70 by separating the second electrode 70 from each other according to the thickness of the works W 1 and W 2. To drive. Therefore, the piston rod 66 is displaced toward the work W 2 side, and the second electrode 70 is engaged with the work W 2 via the movable gun arm 68 fixed to the piston rod 66.
この状態で、さらにシリンダ64を駆動すると、第２電極
70がワークW2に当接しているためにピストンロッド66の
変位動作が阻止される。従って、ブラケット14に対して
フローチング支持されている本体部18は一方のコイルス
プリング26a、26aの弾発力に抗してワークW2から離間す
る方向に移動する（第２図中、二点鎖線参照）。前記本
体部18には保持板体20aの取付部22を介し固定ガンアー
ム30が固着されており、本体部18と前記固定ガンアーム
30とがワークW2から離間する方向に一体的に変位し、当
該固定ガンアーム30の一端に取着されている第１電極32
がワークW1に係合するに至る。When the cylinder 64 is further driven in this state, the second electrode
Since 70 is in contact with the work W 2 , the displacement operation of the piston rod 66 is prevented. Therefore, the main body 18 which is floatingly supported with respect to the bracket 14 moves in the direction away from the work W 2 against the elastic force of the one coil spring 26a, 26a (two points in FIG. 2). See the chain line). A fixed gun arm 30 is fixed to the main body portion 18 via a mounting portion 22 of a holding plate body 20a.
30 and 30 are integrally displaced in the direction away from the work W 2, and the first electrode 32 attached to one end of the fixed gun arm 30.
To engage with the work W 1 .
第１電極32と第２電極70とによりワークW1、W2を所定の
押圧力で挟持した後、図示しない交流電源を駆動して高
周波交流電流を出力させる。この高周波交流電流は変圧
器42の二次コイル（図示せず）に連結されている電極板
44a、44bに伝達され、前記電極板44a、44bに接続されて
いる整流器40a、40bによって単相全波整流される。従っ
て、前記整流された電流は連結部34から固定ガンアーム
30を介して第１電極32に至り、センタタップ端子板46に
給電部材76と可動ガンアーム68とを介して電気的に接続
されている第２電極70と前記第１電極32との間に溶接電
流が供給される。これによって、ワークW1、W2の被溶接
部位が溶融され、この被溶接部位が接合されるに至る。
その際、夫々のニップル38a、74aに接続されている図示
しない冷却用媒体供給源から夫々の通路36、72に、例え
ば、冷却水を供給する。一方、変圧器42においても同様
に、ニップル48aから通路47に対し冷却水を供給する。
従って、第１および第２電極32、70、変圧器42の内部並
びに整流器40a、40bの冷却作業が遂行されることにな
る。After the works W 1 and W 2 are sandwiched by the first electrode 32 and the second electrode 70 with a predetermined pressing force, an AC power supply (not shown) is driven to output a high frequency AC current. This high frequency AC current is connected to the secondary coil (not shown) of the transformer 42.
Single-phase full-wave rectification is transmitted to the electrodes 44a and 44b and rectifiers 40a and 40b connected to the electrode plates 44a and 44b. Therefore, the rectified current flows from the connecting portion 34 to the fixed gun arm.
Welding between the first electrode 32 and the second electrode 70 that reaches the first electrode 32 via 30 and is electrically connected to the center tap terminal plate 46 via the feeding member 76 and the movable gun arm 68. Electric current is supplied. As a result, the welded parts of the works W 1 and W 2 are melted, and the welded parts are joined.
At that time, for example, cooling water is supplied to the respective passages 36, 72 from a cooling medium supply source (not shown) connected to the respective nipples 38a, 74a. On the other hand, also in the transformer 42, cooling water is similarly supplied from the nipple 48a to the passage 47.
Therefore, the cooling work of the first and second electrodes 32 and 70, the inside of the transformer 42 and the rectifiers 40a and 40b is performed.
このようにしてワークW1、W2の所望の被溶接部位の接合
を行った後、シリンダ64を駆動してピストンロッド66を
前記とは逆方向に変位させる。このため、第１電極32並
びに第２電極70がワークW1、W2から離間し、ロボットア
ーム12の作用下にこれらの電極32、70を次なる被溶接部
位へと移動させる。After the desired welded portions of the works W 1 and W 2 are joined in this way, the cylinder 64 is driven to displace the piston rod 66 in the opposite direction. Therefore, the first electrode 32 and the second electrode 70 are separated from the works W 1 and W 2 , and the electrodes 32 and 70 are moved to the next welding target portion under the action of the robot arm 12.
この場合、本実施態様によれば、固定ガンアーム30の端
部に連結部34を設け、この連結部34に整流器40a、40bの
一端側を直接係合させると共に、夫々の整流器40a、40b
の他端側には変圧器42から導出される電極板44a、44bを
係合している。このように、整流器40a、40bを直接固定
ガンアーム30に連結するため、従来のように、整流器と
固定ガンアームとの間に導電板並びにオンス銅板を介装
させる必要がない。従って、変圧器42と固定ガンアーム
30との間で部品同士の接触個所が減少し、これに伴う接
触抵抗の大幅な削減を図ることが出来る。これによっ
て、特に、第１電極32と第２電極70とに大電流を供給す
る際に、電力損失が一挙に減少して極めて効率的な溶接
作業を遂行することが可能となる効果が得られる。In this case, according to the present embodiment, the connection part 34 is provided at the end of the fixed gun arm 30, and one end side of the rectifiers 40a and 40b is directly engaged with the connection part 34, and the rectifiers 40a and 40b are respectively connected.
Electrode plates 44a and 44b led out from the transformer 42 are engaged with the other end side of the. As described above, since the rectifiers 40a and 40b are directly connected to the fixed gun arm 30, it is not necessary to interpose a conductive plate and an ounce copper plate between the rectifier and the fixed gun arm unlike the conventional case. Therefore, transformer 42 and fixed gun arm
The number of contact points between parts is reduced between 30 and 30, and the contact resistance associated therewith can be greatly reduced. As a result, in particular, when a large current is supplied to the first electrode 32 and the second electrode 70, the power loss is reduced all at once, and it is possible to perform an extremely efficient welding operation. .
［発明の効果］ 以上のように、本発明によれば、変圧器の二次コイルに
接続される整流器を直接ガンアームに連結することによ
りオンス銅板を不要とし且つ前記変圧器とガンアームと
の間における接触抵抗を一挙に減少することが出来る。
このため、前記オンス銅板並びに接触抵抗に起因する電
力損失を削減することが可能となり、特に、電極間に大
電流を供給して溶接を行う際に極めて効率的な溶接作業
を遂行することが出来るという効果が得られる。[Effects of the Invention] As described above, according to the present invention, an ounce copper plate is not required by directly connecting the rectifier connected to the secondary coil of the transformer to the gun arm, and between the transformer and the gun arm. The contact resistance can be reduced all at once.
Therefore, it is possible to reduce the power loss caused by the ounce copper plate and the contact resistance, and in particular, it is possible to perform extremely efficient welding work when a large current is supplied between the electrodes for welding. The effect is obtained.
以上、本発明について好適な実施態様を挙げて説明した
が、本発明はこの実施態様に限定されるものではなく、
本発明の要旨を逸脱しない範囲において種々の改良並び
に設計の変更が可能なことは勿論である。Although the present invention has been described with reference to the preferred embodiment, the present invention is not limited to this embodiment,
It goes without saying that various improvements and design changes can be made without departing from the scope of the present invention.
第１図は本発明に係る抵抗溶接装置の斜視図、 第２図は当該抵抗溶接装置の側面図、 第３図は第２図のIII−III線断面図、 第４図は当該抵抗溶接装置を構成する固定ガンアームと
これに取着される変圧器並びに整流器の分解斜視図、 第５図は第４図に示す要部を組み立てた状態の斜視説明
図である。 10……抵抗溶接装置、14……ブラケット 18……本体部、30……固定ガンアーム 32……電極、34……連結部 40a、40b……整流器、42……変圧器 44a、44b……電極板、64……シリンダ 68……可動ガンアーム、70……電極1 is a perspective view of a resistance welding apparatus according to the present invention, FIG. 2 is a side view of the resistance welding apparatus, FIG. 3 is a sectional view taken along line III-III of FIG. 2, and FIG. 4 is the resistance welding apparatus. FIG. 5 is an exploded perspective view of a fixed gun arm constituting the above, a transformer and a rectifier attached to the fixed gun arm, and FIG. 5 is a perspective explanatory view of a state in which the main parts shown in FIG. 4 are assembled. 10 ...... Resistance welding device, 14 ...... Bracket 18 ...... Main body part, 30 ...... Fixed gun arm 32 ...... Electrode, 34 ...... Connection part 40a, 40b ...... Rectifier, 42 ...... Transformer 44a, 44b ...... Electrode Plate, 64 …… Cylinder 68 …… Movable gun arm, 70 …… Electrode
Claims (3)
続される整流器と、夫々の溶接用電極を互いに対向して
取着する開閉自在な一組のガンアームとを具備すると共
に、一方のガンアームに前記整流器を直接係合するよう
に構成することを特徴とする抵抗溶接装置。1. A transformer, a rectifier connected to the secondary coil side of the transformer, and a pair of openable and closable gun arms for attaching respective welding electrodes facing each other. A resistance welding device, characterized in that the rectifier is directly engaged with one of the gun arms.
アームの両側部に第１および第２の整流器の一端側を当
接させると共に、変圧器の二次コイルから導出される第
１および第２の導電体を前記第１および第２整流器の他
端側に当接し、これらを一体的に連結するよう構成する
ことを特徴とする抵抗溶接装置。2. The device according to claim 1, wherein one end sides of the first and second rectifiers are brought into contact with both side portions of one gun arm, and the first and the second coils are led out from the secondary coil of the transformer. A resistance welding device, characterized in that the second conductor is brought into contact with the other ends of the first and second rectifiers to integrally connect them.
圧器を取着した一方のガンアームと、アクチュエータの
作用下に変位自在な他方のガンアームとを本体部に設
け、前記本体部をブラケットに対しフローチング状態で
保持すると共に、前記ブラケットをロボットアームに取
着するよう構成することを特徴とすう抵抗溶接装置。3. The apparatus according to claim 1 or 2, wherein one gun arm having a transformer attached thereto and the other gun arm displaceable under the action of an actuator are provided in the main body, and the main body is used as a bracket. On the other hand, the resistance welding apparatus is characterized in that the bracket is held in a floating state and the bracket is attached to a robot arm.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1032399A JPH07106460B2 (en) | 1989-02-09 | 1989-02-09 | Resistance welding equipment |
| US07/449,812 US5077458A (en) | 1988-12-15 | 1989-12-13 | Resistance welding apparatus with gun-arm mounted transformer |
| GB8928193A GB2225972B (en) | 1988-12-15 | 1989-12-13 | Resistance welding apparatus |
| CA002005685A CA2005685C (en) | 1988-12-15 | 1989-12-15 | Resistance welding apparatus |
| GB9221993A GB2258837B (en) | 1988-12-15 | 1992-10-20 | Resistance welding apparatus |
| GB9222193A GB2258838B (en) | 1988-12-15 | 1992-10-20 | Resistance welding apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1032399A JPH07106460B2 (en) | 1989-02-09 | 1989-02-09 | Resistance welding equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02211984A JPH02211984A (en) | 1990-08-23 |
| JPH07106460B2 true JPH07106460B2 (en) | 1995-11-15 |
Family
ID=12357877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1032399A Expired - Fee Related JPH07106460B2 (en) | 1988-12-15 | 1989-02-09 | Resistance welding equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07106460B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0663758A (en) * | 1992-08-21 | 1994-03-08 | Honda Motor Co Ltd | Resistance welding gun |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60158987A (en) * | 1984-01-28 | 1985-08-20 | Honda Motor Co Ltd | Dc resistance welding device mounted on robot |
| JPS61189879A (en) * | 1985-02-18 | 1986-08-23 | Mitsubishi Electric Corp | Resistance welding robot device |
-
1989
- 1989-02-09 JP JP1032399A patent/JPH07106460B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02211984A (en) | 1990-08-23 |
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| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |