JPS5954474A - Method and device for longitudinal seam welding of pipe - Google Patents

Abstract

PURPOSE:To weld exactly a small diameter pipe, by lifting or lowering plural freely liftable receiving rails as a long beam moves, supporting a floating ring provided in the middle of the long beam, by the rail and a weld pipe, and making the inside face of the weld pipe coincide with the receiving rail face. CONSTITUTION:A long-sized beam 3 is constituted of beams 4, 5 and a pin for supporting pivotally the beams 4, 5, and also floating rings 121, 122 are provided on the middle of the long-sized beam 3. Also, plural floating ring receiving rails 131 are constituted so that the lifting and lowering can be adjusted freely. Subsequently, a groove 141 of a weld pipe 14 is welded, while running a running truck 1 in the direction x2. In this case, before the floating ring 122 reaches the end part in the direction x2 of an end tab 15, one or more receiving rails 131 positioned at the x1 side are lifted and even if the floating rings 121, 122 exceed the end tab 15 and roll in the direction x2, the floating rings 121, 122 are supported by the upper face of the receiving rail 131. Also, even when they are positioned in the grooves 141, 151, the upper and lower positions of the floating rings 121, 122 are maintained in the same way.

Description

【発明の詳細な説明】[Detailed description of the invention]

本発明（Ｊ、長尺）−一−−ムの自由端ｉ’＋Ｉｉに配
設した案内輪を被浴接管の開先番こ係合さ（↓つつ長尺
ビームと被浴接管とを長軸方向This invention (J, long beam) Axial direction

【こ相対移動させて溶接
する管の縦継溶接方法および装、′−ｔに関する。 一般に、パイプ状のＩＪ！溶接管の内面をｇｒｒｔ継溶
接する局介、長尺ビームの自由端部を被溶接管内に挿入
して溶接作業が行ブＳわれでいる。このため、長尺ビー
ムは被溶接管の長さに比例して長くなるが、長尺ビーノ
・が長尺化する程、長尺ビーム目体の機械的強度を人き
くし７なりれに１ならないため溶Ｉ凶”Ｊ能な被溶接１
−；の最小内径か小さい値に制限さイ１ていた。 これに対処するため、従来、例えば長尺ビームｆこ複数
個の遊動輪が設けられてい１こ。即ぢ、第１図乃至第３
図１こおいて、被溶接管１４の軸線と略平行に敷設され
たレール２′−Ｉ−に−自走台車１′か載ｉｉ’ｊさイ
１、この自走台Ｊトｌに長尺ビー、／、　３　Ｕ）　Ｑ
端部が連結されている。長尺ビー１−３　＋こｉ；ｔ　
（、〜ｊ数個のＪ奴＋１ｊｌ１輪１２　、１２　、・・
・が配設さ第１ていて、この５ｈ；：動輪１２’、　１
２’。 ・・・がレール２の案内面１３］と被１８接ｉ′ｒ　１
４の内面とに当接１７、長尺ビーム３の先４ｉ　ｉ、ｉ
ｌ（ｌこ配設さイまた案内輪１１が被１８接管１４の１
；＋１先に係入１２ている。 第１図に示さ第１る状９（）から、例え１１０走台東１
′がＸ２方向に走行し１）つ溶接ヘッド８１こより被溶
接管１４の縦継１８接が行なわイー１でいた。この場合
、被’ｂｓ接骨１４からν１（［脱［、ｆ　１Ｊ：ｆ　
ｊｌｊｌＪ輪１２　　が順次にレールの案内面ｌ：ミｌ
′に当接するため、遊ｄｊＪ１輸１２’、　］−２’、
・・・１常ｆこ被ｒ１￥　接骨１４の内向またｉｌｌレ
ール２′の案内面１３１　ｉこ当イたするこ／！：Ｉこ
なり、このため長尺ビーム３およびｌ）ζ接ヘッド８な
どの屯ｉＢが複数個の遊動輪１２　、１２’、・・・１
こ５１、り分散さ１１て、長尺ビーム３′が小形化し、
小径の被浴接管を溶接できるという１点があった。 ところで、−１１号（こ被（８接↑〕、例えは円管の場
合、一つの管外径に対（、て種々の肉厚の円惰がｌｉ、
ｆ９イ°□されでいる。しか（、第１図乃至第３１図に
示される従来装置では、溶接（こ伴なって、Ｉｊ：ｊ動
輪１２’、　１２’、・・・か移動１．て被溶接管１４
の内向とレール２′の案内面１：４１’（ｌ：に順次に
乗換って当接するため、被溶接管の肉厚が異なる場合、
被溶接管の内向とレールの案内面とが正確に上下方同番
こ対して一致するよう適宜に１１□１０さする必要があ
った。ｒ、０）局舎、被溶接’１Ｑ１４の長さ１こ応じ
てレール２′も長くなり、被溶接管が長尺化する１こつ
れて彼ｔ３接管およびレールか犬！Ｔｉ１１”ｉ化する
ため、被溶接管の内向とレールの案内面とを十ド方向に
対して面−ｉこ調整する作業が極めて困Ｊｔｌｌであっ
た。 本発明の目的は、前記従来の欠点を）うパを消した１］
。 σ）縦継溶接方法および装置を１１１１供することにあ
る。 以下、図示の実施例を参照して本発明の詳細な説明する
。第４図および第５図（こおいて、１は直線的に配設さ
れたガイドレール２」二を走行する駆！１ＩＩＪ機付き
の走行台車、３は長尺ビームで、例えばｒ、の長尺ビー
ム３は、Ｘ方向に分断されたＸ５１および第２の長尺ビ
ーム４，５と、第１および第２の長尺ビーム４．５を枢
支する第１のピン６吉番こよりイナ、成されている。こ
の長尺ビーム３の基ｇ１％は走行台車１（こ連結されて
いる。図示のり１合、？ｆＬ　２のビン７１Ｃより枢支
されている。８　＋＊、　ｎＶ接ヘッドで、例えば溶接
１・−チ９と１−−−ｆλ）１１１整装置１０とにより
構成されている。１１１１長尺じ一ム３の自由端部（こ
回転［］在に支持された案内輪で、この案内輪１１は従
来と同様番こ被浴接管１４の開先１４］に係合し１１ツ
るー−）形成されている。 １２は長尺ビーノ・ニー３の中間部１ζ回転自在薯こ配
設された遊動輪−Ｃ１図示の場合、ｉＢ　１および１５
２の遊動輪１２１　、１２２が第１の長尺ビーム４の先
端部に長尺ビーノ・３の長軸方向に離設さ第１ている。 １３゜受はレール１３１をｌ方同番こ可りＪ［１′ｊに
支持する支持機構１３２と、受はレール１３１ｆＺ方向
に移’Ｊ＋ＪＪさぜる図示しない駆動機と、受すレール
Ｊ：３１の７．２方向の位置を適宜に調整自在な図示し
ないストッパーとにより構成されている。 これら夫々の受はレール機構１３は、図示しない夫々の
駆動（炙により受はレール１３１をＺ２方向側ｌこイｉ
′ｆｉｉ４ｊさゼ−たときＩこ、夫々の１／−ル１３１
，１３１・・・の−１−曲が而−となるように図示しな
い夫々のストッパーの調整がなさイ］ている。また、図
示１．ない夫々の駆動機により受はレール１３１，１３
１をＺ＋刀回側に位置させたときに、夫々の受はレール
機構１３゜１３、・・・（ま走行台車１の下面より下方
に位置し、このため走行台ｉｉｊ　ｌの走行が妨げら第
１ることはない。 １４ｉ４従来々Ｉ；ｊＪ様のｊｊｒＪ先］４１１−有す
る円形管または角形管などの被溶接管で、図示の場合は
円形管である。１５はエンドタブで、被溶接管１４の開
先１４１と同様の開先１５１が形成されている。被溶接
’７ｑ１４は適宜の支持装置け、例えはターニングロー
ル装＋”（およびコンベアロール装置ｉＪ　ｌこより支
持されて位置決めさＡする。図示の場合、例えばコンパ
’Ｔ　ｏ−ル装置ｉ’（１６、１６、・−により被溶接
管が支持されている。 次に、本発明の動作ｆこつぃて１悦明する。第４図乃至
第７図において、まず第４［Ｘ口こ示されることく走行
台車１をＸ２方向の端部（こ（＼γｊＩ！ｔする、いわ
ゆる退避の状態に位置決めする。この場合、図示のごと
く、夫々の受１ル−ル１λａ　措１３　ｔ　１３　、・
・・は夫々の受はレール１：（１，１３１置がＺ２方回
にケイ動さ才１、かつ夫々の受Ｌ−Ｊ１／−ル１：ｎ　
、　１３］　、・・・とエンドタブ１５との上面が而−
と１．（るように位れ”ｌ設定さ第１ている。 この状ｌ、Ｉｊツから走行台車１がＸｌｌ回向駆・Ｉ！
ＩＪさＡ１、こむに伴ｊ、１つて３１）７動］１゛１ぷ
］　２１　、１２２は隣接する”￥ｊ　＋フレー用１３
１，１３１．・・・Ｌ４−順次に転軸しつつＸ＋方回へ
と移動する。、１行台車１０走行中、遊動輪１２１　、
１２２が通過して（７まった位置の受」」レール機構ｌ
：＋、ｔ３゜・・・は、第６図に示されるごとく、走行
金型ｌが到達するまでの間に適宜に受はレール１３１が
士降するようＩＩ　１ｌｉｌＫ動さ旧るｆこめ、受りレ
ール機構１３，１３゜・・・が配設されているにも拘わ
らず、走行台東１はＲ続してＸ１方向へと走行ずろ。こ
の場合、長尺ビーム３の自由端１１１Ｓに配設され７．
：　’４ド内（゛品１　］、　ｉｌｌ、エンドタブ１５
の開先１．５１を経た後、被溶接円１４の開先１４１内
に１ｈｒ人されっつＸ１方向へｌεｌミ・ＩＩ）ｌする
。 第７図番こ小さ第１るごとく、γ８接トーヂ９が肢１ｄ
接部のＸ１方向端ｉｆ＋＜−１＝方に位１ぺした状態で
、走行台車Ｊが停止する。 この後、走行台車１がＸｚ力方向走行しつつ溶接トーチ
９Ｉこより被溶接管１４の開先１４１部が溶接される。 溶接の」（ｆ：行と共に案内伯１１および遊動輪１２１
　、１２２もＸ２方向ζこ転動さイ１．るが、エンドタ
ブ１５と走行台１１（１さかＸ方向に適宜に１１１１間
した後遊動輪１２２がエンドタブ１５ｏ）Ｘ２方向の端
８）へ（こ到達するまでの間にＸ１方向側１こ位置する
１以上の受りレール１３１が適宜１こ＋ｆ、！４ＩｉＪ
されるため、ユ・（動拙２ １２１　、１２２がエンドタブ１５を越えて目方向に：
ｌ「＋、動じても遊動＋ａ　１２１，１２２は受はレー
ル１３１０）　Ｊ−而により支持さイする。このため遊
動輪１２１，１２２　ｈｒ　夫々の開先１４１　、１５
１内に位置してもあるいは受はレール１３１　、１：ｎ
　ｏ）、−［−面子、Ｉこ位置しても、遊！ｔ’ｌＪ　
ｌ＋９１１．２１　。 １２２の−１−下位置は略同様Ｃζ維持さ１１ろ。ｆ、
（お第１方回側に位１１１゛する受はレール１：３１が
ｌｆｊ’　ｌ１ｉＪ＋された場合、夫々Ｘ２方向側に隣
設さオ］た・℃り・リレール１３１．１：（１，・・・
が順θ（（こに？−１１ｉ１＋さイする。 この・１友、第４図に示されるごとく、案内１’１ｌｉ
ｌ　１１が受はレール１３１（／、１１向に支持された
状、Ｑすで、Ｘ２方向に走行する走行台車１が停止され
て一連の溶接作業が冗了される。なお、一般（こエンド
タブ］５は被溶接管の端部が他の溶接部と同様に溶接さ
オ゛するために配設されイ）ものであって、エンドタブ
１５自体の溶接結ＱＩ４余り車視さ第１ない刀）ら、溶
接トーチ９による実際のに接の終了時点は、溶接ｌ・−
チ９がエンドタブ１５の〕１＆宜の」二方番こ位１１ゝ
イした時点以降であれは」適宜に選定することかできる
。 上記１８刊イ１窄の冗了後、ＩＬ’Ｊ　＃：接竹管１４
取替λて仄の溶接作業が行なわれる。 被溶接’ｉ：ｉ’　１４　”；・取替えた甲１合に、被
溶接着１４の内面状態か）υなるきき？こは、゛−ンシ
内ｔ１命１１が入１力“回の端＋ｉＫ＋こ位置する受は
レール１：３１からはずイする被溶接管１４の内向と曲
−の状態となるよう（こ受りｌノールｔｉ、Ｉｔ；　４
ｔｔ　１　：３の図示しないストッパ・−を操作し、こ
不１（（７引ｒｔＩ］″Ｉ：き１隣接する受はレール１
３１，１３１．・・・の位置をＳｔ次ｌこ調’Ｉｉ″ｚ
する。受はし　ル１３１の位置調整時（こは、該受はレ
ールｌ：Ｈｌｌこ案内＋１・ｔ＾］１や】・５７動輪１
２が位１．ｙ？することがないように走行台車１の位ｉ
；゛１苓−】１；ｉ箔に選定するため、夫々の受はレー
ル１３１の位置調整を容易にか−）迅律に行ｊ、（うこ
とができる。まＴこ胃１・千自イ［な」奴１川）（へ術
用受はシー１１歳Ｊ：”’、ｉは、長尺ビーム〔）】長
軸方向にｉｉｉ数個配設されでいて、走行舎利のＩｇ−
近時には・°・ゾ（Ｊレールかｈト動さ第１ているため
１，１−イ）一台車は何ら支トへなく被溶接吻に対［７
て”Ｊ及的ｌこ近Ｉう“（することができる、従っで遊
動輪がエンドタブを〕ｍ過するまで１ご受はレール、ノ
＜　、￥７−動するよう受Ｇ）レール機構が作動される
ため、ユＩ！を動輪は被溶接管と受はレールとの１ノｆ
動により常時支持されろ。この１こめ長尺ビームは少な
くとも３点支持の状態となり、…［山ｌ二次モーメント
の小さい長尺ビームとすることかでき、かつＪ、ｆ尺ビ
ーノ、は常に一定の状態にＩｆｆ（持さ４するため均一
な溶接結果を確実に得ることができろ。また２以上の遊
：１・ＩＩ愉が長尺ビームの長軸方向にｊｉｌｔ設さ第
１ると共に遊動輪のｌ！Ｉ１１設問１〜°・、Ａがゲ１
降ずイ、ダはレールの有効受４Ｊ長すｌ＝　Ｊ’＋ｊ、
　ｆ、ｃ　６　、Ｊ、−）ＩＣ＋ｒ°４　成すｆ’ｌ　
ティＩｔ　ｆ；Ｌ、−力の＋ｌ！ｉ動幽か受ｔＩＬノー
ルの継手部ｌこ位１占するときでも１１１入方の遊！１
Ｉ１１輪が受りレールの一″１′坦而に支持さｌｒ、ｌ
ｙため、受（ル−ル間の継手Ｒ１りにギャップがあつＣ
も遊動輪は受はレール上を円ｌｉ′ｉ１こ移動する。　
ｉ；ｒ−って４ノト尺ヒームの長軸方向に２以−にの遊
動輪を離設すＪ’ｌば、夫々のグリレール間にギャップ
があつ−（も許容さイするため、複数個の受（Ｊレール
は４１〜７の配設作業を一￥−ｊ′易にｊ−１なうこと
かできろ。さらに、（−尺ビームを長軸方向に２個以」
二に分１１ｆｉすると共（Ｃ長尺ビームの長軸を含むｊ
ｌ（的面内で夫々の長尺ビームが相互に「社動となるよ
う軸支し、該軸支部近傍の少１．Ｉ：くとも一力の長尺
ビーム（こ遊動４１１！を配設すれは、長尺ビームの製
作が容易である。即ち、一般に長尺ビーノ・の取付時に
長尺ビームが水平状態となるようにするため、長尺ビー
ムの製作時（こ予しめ１７尺ビームが上方ζこ湾曲する
よう、いわゆる逆歪みを与えている。ところで、第４図
（こ示されるごとく、３点支持される長尺ビームを１体
形で製作する場合には、皿子山状の述歪みを与えなけ才
１はならないため製作が困ケ１１−であるが、」１記の
ごとく長尺し、−ムを２個以−４１ｉこ分１ｙ［シた、
夫々化１１焚的短いビームとすれば取扱いが容易である
１こめビーム製作し易く、かつ上刃に湾曲する通常の逆
歪みを与えれはよいためビームの製作が容易である。 」−記において、遊動輪１２は披ｌ′６接艙の開先１４
１の上方番こ配置したり、あるいは開先１４１を跨いだ
−１一方（こ配置ｉ’７　したりすることができる。ま
た遊！＋ｉＩＩ　１１・９１２としては常用さオ］る転
４・ゐと（７たり、あるいは球体吉球体軸受とにより（
１・１成することができる。さらに、案内’ｉ’、ｌｉ
　１１の近傍の長尺ビーム３１こ球体よ５よひ球体軸受
をＺｌおよびＺ２方向に昇降目在なサポートロール機構
を配設して、長尺ビーム３と被溶接管１４との長軸方向
の遁走時にサポート【Ｉ−ル機梧の球体を案内！ｌ’Ｘ
ｈｌｌよりも１！方向に位１１′１′させて案内輪１１
と被溶接管１４の開先１４１との係合状態を解消１．＼
せ、溶接時にサポートロール１ｉ＊　Ｉｔ”ｆの球体を
案内輪１１よりもＺ２方向に位面″させて案内輪ｌ］と
開先１４１とを係合させることもできる。さら（こまｊ
こ、Ｍ接作業時（こは被溶接管と走行台車とが長軸方向
に相対移１ｊｉ））ず第１はよいか、被溶接′冴を長軸
方向に移動させるＪＲ，合、＋７？接時番テ、大重量の
被溶接管を等速度で移動させることが困ｆ、４１である
ため、被溶接ｔ′−１を固定とし長尺ビームおよび走行
台車を移動さ仕た方が好ましい。またこの場合、実際の
溶接方向は任、も１（であるが、走行台車か被溶接９゛
（１こ接近するときを遊走状態として走行台車が被溶４
））、管から１ｉｉｆｆ間するときを実１ｊ！；＼のｌ
’ｉ￥接状態とずれは、１ノに際の溶接終了時（こ走４
ｉ台ｊｌｉや）ＩＩｋ＋１山輪などが、いわゆる退避の
状態に位置しているため、遊動輪や案内輪などが溶接後
の赤熱部に当接して１１４傷される虞れはない。こイ′
口こ０拘イ′）らず走行台車が被溶接管（こ接近すると
き番こ実際の（８接作業を行ｔ、Ｈわぜることかできる
が、この場合、長尺ビームの自山端郡に配設されるに接
トーヂと案内ｌｌ会の位置が１１゛♂換されること（、
ｉ勿論である。さらＣｊ−まｔこ、遊動輪用受すレール
（Ｊ、　Ｊｉ’ｉのうちＸ＋方同の・）；６１部に配設
さ４１６′ツ番」レールの上面に案内イ゛１′麹と保合
ずろ溝を１１ジ成１れば、案内輪かエンドタブ上１こ位
置する乏きと受はレール」−に付けするときとの上１・
方向の位１Ｂｊｊ変動を小さくするこ々ができる。勿論
被溶接管を全長に亘って均−Ｉこ溶接するために被溶接
管の両端部にエンドタブを配設した方が好ましい。また
遊動輸用受りレール（、（構（こおいで、受りレールを
昇降自在に支持ずイ）ヴ持ＩｊＱ構を図示のことく、い
わゆるバンクグラフ状とすれは受はレールを１；イ動さ
ぜたときの−ｌブト方１１１１の必要空間を小さくする
こＪができるが、こＩｉｉこも拘わらず、パ、！−目レ
ールの支持線描として１１３ｊ宜の（Ｉ”−ｉ　１ｉ：
＋のもの、例えば受けＬ／−ルをガイドバーで′Ｊ１．
１２ト自イ１に支自重１ものを１さｔ用ｊＪることかで
きる。 以上のごとく、木筆１の発明によりは可及的に小径）−
の〇〇溶接管を１！１Ｆ実に溶接することができる。 また木筆２の発明によれは、ｙｌ、降自在ｊ、【遊！Ｉ
ｊＩＪ輪用受はレール桟構が長尺ビーｌ、のＪそ軸方向
にンτｊ数個配設されているため’＃、’ｉ　ｒ８接′
１゛ｉの内向状態の共用に伴なう受はレールの位１”′
７ｔ４’、’＋Ｉ整が容易にかつ迅速に行なうことがで
き、しか６１ｖ尺ビームは少なくとち３点ヴ持の状ｔ、
＋ｒｓとなるからｉｉＪ及的に小径０）被Ｉｓ接骨（ご
適用することができ、さらｔこ長尺ビームは一定の状ｔ
７１．ｑ　＋ｃｌＩ：Ｉ＃持されるため均一な溶接結果
５−確実１こ得る己とができる、更に本第３の発明によ
イ１は、木第ｚシのうη明の効果に加えて、長尺ビーム
４−１＜軸方向Ｉｆｆ、　２個以」−に分断することが
できるため、長尺ビーノ・を容易（Ｃかつ安価に製作す
ることができ、従つで安価４Ｃ溶接装置を（Ｒ供する（
吉かできるためＱＢ　’ｊｉζ士、イ」益である。[This article relates to a vertical joint welding method and apparatus for pipes in which the pipes are welded by relative movement.'-t. Generally, pipe-shaped IJ! When grrt welding the inner surface of a welded pipe, the free end of a long beam is inserted into the pipe to be welded, and the welding operation is performed. For this reason, the long beam becomes longer in proportion to the length of the pipe to be welded, but the longer the long beam becomes, the more the mechanical strength of the long beam body becomes 7 to 1. Welded object 1
-; was limited to a smaller value than the minimum inner diameter. In order to cope with this, conventionally, for example, a plurality of idler wheels are provided for the long beam f. Immediately, Figures 1 to 3
In FIG. 1, a self-propelled carriage 1' is mounted on a rail 2'-I- laid approximately parallel to the axis of the pipe to be welded 14, and a long rail is mounted on this self-propelled platform J-I. Shakubi, /, 3 U) Q
The ends are connected. Long bee 1-3 +koi;t
(, ~ j several J guys + 1 jl 1 wheel 12 , 12 ,...
- is arranged first, and this 5h;: driving wheel 12', 1
2'. ... is in contact with the guide surface 13 of the rail 2
17, the tip of the long beam 3 4i i, i
l(l) Also, the guide ring 11 is connected to one of the 18 contact pipes 14.
; +1 has entered 12 times earlier. From the first shape 9 () shown in Figure 1, for example, 110 runs Taito 1
' traveled in the X2 direction, and the vertical joint 18 of the pipe to be welded 14 was welded from the welding head 81 at E1. In this case, from 14 to 14 ν1 ([, f 1J: f
jljlJ wheel 12 sequentially moves the rail guide surface l:mil
′, so the free djJ1 12', ]-2',
...1 always f this covered r1 yen Inward direction of the osteotomy 14 and the guide surface 131 of the ill rail 2' I hit this /! :I curve, therefore, the long beam 3 and l) tung iB such as the ζ contact head 8 are connected to a plurality of idlers 12, 12', . . . 1
This 51 and the dispersion 11 make the long beam 3' smaller.
One point was that small-diameter bathed pipes could be welded. By the way, in the case of a circular pipe, for example, in the case of a circular pipe, there are circular inertia of various wall thicknesses li,
f9 is turned on. However, in the conventional apparatus shown in FIGS. 1 to 31, welding (accompanyingly, Ij:
Since the inward direction of the rail 2' and the guide surface 1:41' (l:) are sequentially transferred and contacted, if the wall thickness of the pipe to be welded is different,
It was necessary to properly insert 11□10 so that the inward direction of the pipe to be welded and the guide surface of the rail were exactly aligned with the same number in the upper and lower directions. r, 0) Station, rail 2' becomes longer according to the length of welded '1 Q14, and the pipe to be welded becomes longer. In order to make Ti 11"i, it was extremely difficult to adjust the inward direction of the pipe to be welded and the guide surface of the rail in the direction of the direction. 1]
. σ) To provide a vertical seam welding method and apparatus. Hereinafter, the present invention will be described in detail with reference to illustrated embodiments. Figures 4 and 5 (in this figure, 1 is a traveling bogie with a drive!1 IIJ machine that runs on guide rails 2'' arranged linearly, 3 is a long beam, for example, the length of r) The long beam 3 includes an X51 divided in the X direction, second long beams 4 and 5, and a first pin 6 that pivots the first and second long beams 4.5, The base g1% of this long beam 3 is connected to the traveling carriage 1. It is pivoted from the illustrated glue 1, ?fL 2 bin 71C. 8 + *, nV contact head For example, it is composed of a welding 1. As in the conventional case, this guide ring 11 is formed by engaging with the groove 14 of the bathing contact pipe 14. 12 is the middle part 1ζ of the long beano knee 3, which is rotatable. Idle wheels arranged in this manner - C1 in the case shown, iB 1 and 15
Two idler wheels 121 and 122 are provided at the tip of the first long beam 4 and spaced apart from each other in the longitudinal direction of the long beam 3. The 13° receiver includes a support mechanism 132 that supports the rail 131 at the same number J[1'j, a drive machine (not shown) that moves the rail 131f in the Z direction, and a receiving rail J: 7.31 and a stopper (not shown) that can adjust the position in the two directions as appropriate. The rail mechanism 13 of each of these receivers is driven by a drive (not shown) that moves the rail 131 to the Z2 direction side.
'fii4j When I saw each other, each 1/- rule was 131.
, 131 . In addition, illustration 1. The receivers are connected to the rails 131 and 13 by their respective drive machines.
1 is positioned on the Z + rotation side, the respective supports of the rail mechanisms 13, 13, ... (are located below the bottom surface of the traveling carriage 1, and therefore the traveling of the traveling carriage iiij l is not obstructed. 14i4 Conventionally I; jJ's jjrJ destination] 411- A pipe to be welded such as a circular pipe or a square pipe, and in the case shown, it is a circular pipe. 15 is an end tab, which is a pipe to be welded. A groove 151 similar to the groove 141 of No. 14 is formed. The welded material '7q14 is supported and positioned by an appropriate support device, for example, a turning roll device (and a conveyor roll device iJ l). In the illustrated case, the tube to be welded is supported by, for example, a comparator device i (16, 16, . . . ).Next, the operation of the present invention will be explained in detail. In FIGS. 7 to 7, first, the traveling carriage 1 is positioned at the end of the X2 direction (this is the so-called retracted state. , each Uke 1 rule 1λa measure 13 t 13 ,・
... means that each receiver is rail 1: (1,131 positions are moved in the Z2 direction), and each receiver L-J1/- is rail 1:n.
, 13] , ... and the upper surface of the end tab 15 are...
and 1. (The first position is set as shown in Figure 1.) From this state, the traveling bogie 1 is set to
IJsa A1, Komu j, one 31) 7 motion] 1゛1pu] 21, 122 is the adjacent "\j + 13 for frame
1,131. ...L4-Move in the X+ direction while sequentially rotating the axis. , one-row trolley 10 is running, idle wheels 121 ,
122 passes (7) and the rail mechanism l
:+, t3°..., as shown in FIG. Despite the fact that the rail mechanisms 13, 13°, . . . In this case, 7. is arranged at the free end 111S of the long beam 3.
: '4 card inside (゛product 1], ill, end tab 15
After passing through the groove 1.51 of the circle to be welded 14, it is moved in the X1 direction for 1 hour within the groove 141 of the circle to be welded 14. Figure 7: Small number 1, γ8 contact toe 9 is limb 1d
The traveling trolley J stops in a state where it is moved toward the X1 direction end if+<-1= of the contact portion. Thereafter, the groove 141 of the pipe to be welded 14 is welded by the welding torch 9I while the traveling carriage 1 travels in the XZ force direction. Welding" (f: line with guide wheel 11 and idler wheel 121
, 122 also roll in the X2 direction ζ. However, after moving between the end tab 15 and the running base 11 (appropriately 1111 in the inverted 1 or more receiving rails 131 as appropriate 1+f, !4IiJ
Because of this, Yu (lack of movement 2 121, 122 goes beyond the end tab 15 towards the eyes:
121, 122 are supported by the rail 1310) J-.For this reason, the idler wheels 121, 122 hr grooves 141, 15
1 or the receiver is rail 131, 1:n
o), - [- Face, even if I'm in this position, I'm playing! t'lJ
l+911.21. The -1-lower position of 122 is maintained almost the same as Cζ11. f,
(If rail 1:31 is lfj' l1iJ+, the receivers positioned 111゛ on the first direction side will be installed adjacently on the X2 direction side respectively).・・・
is the order θ((Koni?-11i1+Sai.) This 1 friend, as shown in Figure 4, guide 1'1li
l 11 is supported in the rail 131 (/, 11 direction), Q, the traveling bogie 1 traveling in the X2 direction is stopped and a series of welding operations is interrupted. ] 5 is arranged so that the end of the pipe to be welded can be welded in the same way as other welding parts. The actual end point of contact by the welding torch 9 is the welding l.-
After the point in time when the end tab 9 hits the end tab 15 in the 1st and 11th direction, it can be selected as appropriate. After the conclusion of the above 18th issue I1, IL'J #: Bamboo tube 14
Replacement welding work is performed. To be welded 'i: i' 14 '';・The inner state of the welded part 14 to be welded to the replaced part 1) υ?This is the input of t1 in the assembly 11 to the end of the turn +iK+ This receiver is positioned so that the pipe to be welded 14 that is removed from the rail 1:31 is inwardly bent and bent (this receiver is in a position where it is bent inwards).
tt 1: Operate the stopper (not shown) at 3, and then press
31,131. The position of ... is St next l K key 'Ii''z
do. When adjusting the position of the rail 131 (this is the rail l: Hll guide +1 t^] 1) 57 driving wheel 1
2 is in place 1. Y? The position of the traveling trolley 1 is
；゛１蓓-】１；Since the foil is selected, each receiver can easily adjust the position of the rail 131. I [Na] 11 years old) (The surgical receiver is 11 years old J:"', i is a long beam [)] There are several iii arranged in the long axis direction, and the Ig-
In recent times, one bogie has not been supported by any support, but is directly attached to the part to be welded [7].
(can be done, so that the idler wheel passes the end tab) until the rail is moved, so that the rail mechanism moves. To be activated, Yu I! The driving wheel is the welded pipe and the receiver is the rail.
Always be supported by movement. This one-piece long beam is supported at at least three points, and can be made into a long beam with a small moment of inertia. 4, so that uniform welding results can be obtained reliably.In addition, two or more idlers: 1.II. ~°・, A is game 1
The effective length of the rail is 4J, L= J'+j,
f, c 6 , J, -) IC+r°4 f'l
T It f;L, -+l of force! The joint part of the control unit is 111 points even when you have 1 fortune! 1
I11 wheels are supported on one inch of the receiving rail lr, l
y, there is a gap in the joint R1 between the receiver (C) and the rule.
The idler wheel also moves a circle li'i1 on the rail.
If two or more idlers are installed apart in the long axis direction of the 4-note heel, there will be a gap between the respective grill rails, so multiple idlers will be installed. (The J-rail can easily perform the installation work of 41-7. Furthermore, (2 or more length beams can be installed in the long axis direction.)
Divide into two 11fi and (C including the long axis of the long beam
l (In the target plane, each long beam is pivoted so that it moves mutually, and a small one near the pivot support is arranged. This makes it easy to manufacture long beams.In other words, in general, in order to ensure that the long beam is in a horizontal state when installing the long beam, when manufacturing the long beam (in advance, the 17 beam is A so-called reverse strain is applied so that the beam is curved upward by ζ.By the way, as shown in Fig. It is difficult to manufacture because it is necessary to apply distortion, but it is made as long as described in 1.
If the beam is short in length, it is easy to handle, and it is easy to manufacture the beam in one piece, and the beam can be easily manufactured because it is easy to apply the normal reverse distortion to the upper blade. ”, the idler wheel 12 is connected to the bevel 14 of the
1 can be placed above the groove 141, or -1 can be placed across the groove 141.It is also commonly used as play!+iii 11.912. and (by 7 or by spherical bearing) (
1.1 can be achieved. Furthermore, the guide 'i', li
A support roll mechanism that moves up and down in the Zl and Z2 directions is installed on the long beam 31 in the vicinity of the spherical body 5 and in the Z2 direction. Support when fugueing [Guiding you through the I-Ru Kigo sphere! l'X
1 more than hll! The guide wheel 11 is placed in the direction 11'1'.
1. Release the engagement state between the groove 141 of the pipe to be welded 14; \
Alternatively, during welding, the spherical body of the support roll 1i*It"f can be oriented in the Z2 direction with respect to the guide wheel 11, so that the guide wheel 1] and the groove 141 can be engaged with each other. Sara (Komaj)
During M welding work (here, the pipe to be welded and the traveling truck move 1ji relative to each other in the longitudinal direction), is the first option correct? During contact, it is difficult to move the heavy pipe to be welded at a constant speed, so it is preferable to fix the welded part t'-1 and move the long beam and traveling cart. . In this case, the actual welding direction is arbitrary; however, when the traveling truck approaches the welded object 9゜(1), it is assumed that the traveling truck is in a wandering state.
)), from the tube to the real 1j! ；＼のl
The deviation from the 'i\ contact state is at the end of welding at the end of the first weld (this run 4
Since the i-mount jli and IIk+1 mountain wheels are located in a so-called retracted state, there is no risk that the idler wheels, guide wheels, etc. will come into contact with the red-hot part after welding and be damaged. Koi'
When the traveling cart approaches the pipe to be welded, it is possible to perform the actual (8-joint work) without worrying about the end of the long beam. The location of the contact point and guide board will be changed to 11゛♂ in the district.
iOf course. Furthermore, the idler wheel receiving rail (X+ direction of J and Ji'i is the same); installed in the 61st part, and the guide plate 1' and the 416' koji on the top surface of the rail. If 11 retaining slot grooves are formed, the guide ring or end tab should be placed on the top 1 and the receiver should be placed on the rail.
It is possible to reduce the variation in direction by 1Bjj. Of course, it is preferable to provide end tabs at both ends of the welded tube in order to evenly weld the entire length of the welded tube. In addition, the floating transport receiving rail (in which the receiving rail is supported so that it can be raised and lowered freely) is shown in the figure. Although it is possible to reduce the space required for the -l button 1111 when moving, it is possible to reduce the space required for the -l button 1111 in this case.
+, for example, the receiver L/- with the guide bar 'J1.
It is possible to support 1 thing with a weight of 1 on a 12-ton vehicle. As mentioned above, with the invention of wood brush 1, the diameter is as small as possible)
〇〇welded pipe can be welded to 1!1F. Also, according to the invention of wood brush 2, yl, free j, [play! I
Since the rail support for the IJ wheel is arranged in several pieces in the direction of the J axis of the long beam, '#, 'i r8 tangent'
The Uke that accompanies the sharing of the introverted state of 1゛i is the rail position 1'''
7t4','+I alignment can be done easily and quickly, but the 61v beam has at least 3 points,
+rs, so iiJ and small diameter 0) can be applied to Is bone grafting (this can be applied, and the long beam has a constant shape t
71. Since q +clI:I# is maintained, a uniform welding result can be achieved with certainty.Furthermore, according to the third invention, in addition to the effect of the Since the long beam 4-1 < axial direction Iff, it can be divided into 2 or more pieces, long beams can be manufactured easily (C and at low cost), and therefore inexpensive 4C welding equipment can be used ( Provide R (
It is a good thing for the QB to be successful.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図（Ｊｉメ゛Ｌ来例シ・示す正向１１Ｊ［面図、？
ｉ＋Ｊ２図および′ｆ５３図は第１図の夫々Ｊ、Ｉ−Ｉ
Ｉ線およびＩｉｉ、　−ＩＩＩ線断面図、第４図は本発
明の実施例を示す市面図、第５図は第４図の平面図、第
６図および第７図は夫々聞Ｓ４図に示される装置１゛ｔ
の動作説明１ツ１である。 １・・・走ｉ−１台車、２・・・ガイドレール、３・・
・長尺ビーム、８・・・溶接ヘッド、１１・・・案内輪
、１２・・・ＩＪｒｆ動輪、１３・・・遊動輪用受すレ
ール槻４Ｖ’ｔ、１３１・・・受はレール、１４・・・
被溶接′１；、１４１・・開先。 代理人　弁理士　　中　　井　　　宏 ［、笹’＋：ｉ′ｌ！ト１−１１４；ｊ　（白光〉昭和
ｈ　７　、ｆＬ　’Ｉ　０月１　’、１１１４’７１１
゛ｌ’ｌ　Ｉ−ｉ’　ｌ８、官　ＭＱ′１．小（′１の
表示 １１、（（ｌｌ　！Ｊ　７　ｉＩ！１．’ｌ　：ｌ’＋
　！げ自！　ｉ　（”）　Ｅ）’７０５）シＪ２、発明
の名（：１． １゛への刹［’ｒｉ容接グノン人お、上ひ艮箇ｆ、’３
．　　ｉ＋１ｉｉｌ−づるδ 事１′１どの関係　　１ｊｉ　　八′［出　騨１　人大
阪市淀用区１１１１１１２１目′１番１′１日（０２ｆ
ｉ）　　大阪２りＪ　ｊ　；ｑ、ｊ、ｉ　（λ、１（会
ン１４、代理人 Ｌｌ’、　　ｉ’ｆｉ　　　イ！＋：１２　　大阪市淀
用区１１．１川２−１１−ｌ　”Ｉ　’ｄ’＋　’Ｉ　
ｉシー：［連絡先　′１・１迅１１（ＯＴｉ）　３（１
１１２１２］５、？＋１ｉ正命令の［１（・１　　　　
白　　光３７７−Figure 1 (Front view, ?
Figures i+J2 and 'f53 are J and I-I of Figure 1, respectively.
4 is a city plan showing an embodiment of the present invention, FIG. 5 is a plan view of FIG. 4, and FIGS. 6 and 7 are shown in FIG. S4, respectively. device 1゛t
This is a one-by-one explanation of the operation. 1...Travel i-1 trolley, 2...Guide rail, 3...
・Long beam, 8...Welding head, 11...Guide wheel, 12...IJrf driving wheel, 13...Rail truss for idler wheel 4V't, 131...Rail support, 14 ...
To be welded'1;, 141...Bevel. Agent: Hiroshi Nakai, Patent Attorney [, Sasa'+: i'l! 1-114;j (Hakko) Showa h 7, fL 'I October 1', 1114'711
゛l'l I-i' l8, Government MQ'1. Small ('1 display 11, ((ll !J 7 iI!1.'l :l'+
! Get yourself! i ('') E) '705) し J2, name of the invention (:1.
．． i+1iil-zuru δ thing 1'1 which relationship 1ji 8' [out 1 person 11111121, Yodo-ku, Osaka City, 1'1, 1'1 (02f
i) Osaka 2ri J j ;q, j, i (λ, 1 (Mein 14, Agent Ll', i'fi i!+: 12 Osaka City Yodoyo Ward 11.1 Kawa 2-11-l) I'd'+'I
iC: [Contact information '1.1 11 (OTi) 3 (1
11212] 5,? +1i positive instruction [1(・1
White light 377-

Claims (1)

【特許請求の範囲】 ■、　長尺ビームの自由端部に配設した案内輪を被溶接
管の開先に係合させつつ被溶接管と長尺ビームとを長軸
方向に相対移動させて溶接する管の縦継（’＆接方法に
おいて、複数個の昇降自在なＪＬ動輪用受りレールを長
尺ビームとの相対移動に伴なって適宜に昇降動させて、
長尺ビームの中間部に配設された遊動輪を遊動輪用受は
レールと被溶接管との協動により常時支持しつつ７８接
する管の縦継溶接方法。 ２、　長尺ビ・−ムと被溶接管との接近時に遊動輪の通
過１−た遊動輪用受け１ノールを順次降動させ−この（
Ｎ珀尺ビームさ被溶接管との離間時に溶接を開始すると
共（こ遊動輪が到達するまでに遊動輪用受はレー・ルを
順次昇動さぜる特許請求の範囲第１項に記載の溶接方法
。 ３、被溶接管の開先１こ係合する案内輪および溶接ヘラ
１呑「４　ＩＩ＋端部（こ配設しｆこ長尺ビームと被ｌ
容接管とを長袖方向に相対移動させて溶接する管の縦組
ｒｒマ接！−１１（′ｊにおいて、１ｉｉＪ記長尺ビー
ノ・の中間部（Ｃ−１個以」二の遊動輪を配設し、前記
被溶接偶の長尺ビーム側に昇降自在な遊動輪用受は軸 レール機ＪＩＭを長尺ビームの長１方向に複数個配設し
てなる管のｌＸ、継ｆｄ接装ｕ＜７．　。 ４、前記遊動輪（ｌ、２以」二の遊動輪が長尺ビームの
長軸方向に１１ｉ１Ｕ設されてなる特許請求の範囲第３
項に記載の溶接装置ｉ１ｔ、。 ５、被溶接管の開先に係合する案内輪および溶接ヘッド
を口出端部に配設しｆコ長尺ビーム々被ｍ接管とを長軸
方向に相対移動させて溶接する管の縦継溶接ｌＡ１１”
（において、＋ｉｉＪ記長尺ビームを軸方同番こ２個以
上に分断すると共１こ長尺ビーノ、の長軸を含む垂直向
内で夫々の長尺ビームが相互に可動となるよう軸支し、
Ｉ’＋ｉｌ　＋；＋−！輔支ｊ’！ｆ＜近傍の少なくと
も一方の長尺ビームに遊動輪を配設し、前記被ｔ８接管
の長尺ビーム側に昇降自在な遊動　　　゛輪用受はレー
ル機構を長尺ビームの長軸方向イこ複数個配設してなる
管の縦継溶接ｙ；直。 ６．　　ｔ！！Ｉ記遊動輪は、２以」の遊動輪が長尺ビ
ーノ・の長軸方向にｉｉｌ！設されてなる’Ｒｉ許、＾
求の範囲第５項に記載の浴接装ｊｔ’Ｈｉ　。[Claims] (1) The pipe to be welded and the long beam are moved relative to each other in the longitudinal direction while a guide ring disposed at the free end of the long beam is engaged with the groove of the pipe to be welded. In the longitudinal joint ('& connection method) of the pipes to be welded, a plurality of JL drive wheel receiving rails that can be raised and lowered are moved up and down appropriately as they move relative to the long beam,
A vertical joint welding method for pipes that are in contact with each other while the idler wheel placed in the middle of a long beam is constantly supported by the idler wheel support through cooperation between the rail and the pipe to be welded. 2. When the long beam and the pipe to be welded approach each other, the idler wheel receiver 1 knoll, which has passed through the idler wheel 1, is successively lowered.
Welding is started when the N-sized beam is separated from the pipe to be welded (until the idler wheel reaches this point, the idler wheel receiver sequentially moves the rails up and down). Welding method. 3. A guide ring that engages the groove of the pipe to be welded and a welding spatula.
Vertical welding of pipes by moving them relative to the receptive pipe in the long sleeve direction! -11 ('j) In the intermediate part of the long beam (C-1 or more), two idler wheels are arranged, and a receiver for the idler wheels that can be raised and lowered on the long beam side of the joint to be welded is provided. lX of a pipe formed by arranging a plurality of shaft rail machines JIM in one direction of the length of a long beam, joint fd connection u<7.4. Claim 3: 11i1U are provided in the long axis direction of the length beam.
The welding device ilt, as described in Section 1. 5. A guide ring and a welding head that engage with the groove of the pipe to be welded are arranged at the outlet end, and the long beam and the pipe to be welded are moved relative to each other in the longitudinal direction of the pipe to be welded. Joint welding lA11”
(In the +iiJ long beam, the long beam is divided into two or more pieces with the same axial number, and the long beams are pivoted so that they can mutually move in the vertical direction including the long axis of the long beam. death,
I'+il +;+-! Support j'! An idler wheel is disposed on at least one of the long beams near f Vertical joint welding of individually arranged pipes; straight. 6. T! ! The idler wheels listed in I are 2 or more idlers in the long axis direction of the long beano! It's been set up, ^
The bath fitting jt'Hi according to item 5 of the scope of interest.