JP2825832B2 - Material joining method and apparatus - Google Patents

Material joining method and apparatus

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Publication number
JP2825832B2
JP2825832B2 JP1016636A JP1663689A JP2825832B2 JP 2825832 B2 JP2825832 B2 JP 2825832B2 JP 1016636 A JP1016636 A JP 1016636A JP 1663689 A JP1663689 A JP 1663689A JP 2825832 B2 JP2825832 B2 JP 2825832B2
Authority
JP
Japan
Prior art keywords
welding
welding machine
head
machine
heads
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 - Lifetime
Application number
JP1016636A
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Japanese (ja)
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JPH02197376A (en
Inventor
敬三 石野
真一郎 前川
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Sumitomo Heavy Industries Ltd
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Sumitomo Heavy Industries Ltd
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Priority to JP1016636A priority Critical patent/JP2825832B2/en
Publication of JPH02197376A publication Critical patent/JPH02197376A/en
Application granted granted Critical
Publication of JP2825832B2 publication Critical patent/JP2825832B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、電縫鋼管製造設備や鍛接鋼管製造設備等に
おいて、材料コイルの先端と後端の突合せ部を溶接する
ための方法及びそれに使用する材料継ぎ溶接装置に関す
るものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a method for welding a butt portion between a front end and a rear end of a material coil in an electric resistance welded steel pipe production facility, a forged steel pipe production facility, and the like, and uses thereof. The present invention relates to a material splicing welding apparatus.

〔従来の技術〕[Conventional technology]

従来、電縫鋼管製造設備においては、一般的に、１個
の帯鋼コイルを巻き戻して平滑にした後、ダウンカット
シャにより帯鋼コイルの先端を切断し、次いで製管工程
に送給していたが、１個の帯鋼コイル毎に製管処理が行
われるから、能率が極めて悪いという欠点があった。Conventionally, in an ERW steel pipe manufacturing facility, generally, after a single steel strip coil is rewound and smoothed, the end of the steel strip coil is cut by a downcut shaft, and then fed to a pipe making process. However, since the pipe-forming process is performed for each steel strip coil, the efficiency is extremely low.

そこで、近年、先行帯鋼コイル（先行材料）の尾端と
後行帯鋼コイル（後行材料）の先端とを溶接して連続的
に製管処理することが考えられている。Therefore, in recent years, it has been considered that the tail end of the preceding steel strip coil (preceding material) and the front end of the succeeding steel strip coil (subsequent material) are welded to perform a continuous pipe forming process.

〔発明が解決しようとする課題〕[Problems to be solved by the invention]

しかしながら、溶接時間を短縮するために複数組の溶
接ヘッドを溶接線に沿って一列に並べた複数ヘッド溶接
機を使用し、先行材料の尾端と後行材料の先端とを１層
溶接により自動的に接続しており、溶接方向前側のヘッ
ドの溶接始点まで溶接方向後側のヘッドで溶接するか
ら、板端部に溶接終点ができてルーピング工程及びフォ
ーミング工程における材料の切断原因となる溶接欠陥が
発生し易い。また、溶接終点で溶接部が材料の端面より
はみ出し易く、はみ出した溶接部によりエッジミラーに
おける工具を損傷する恐れがあるという不都合を免れな
かった。However, in order to shorten the welding time, a multi-head welding machine in which a plurality of sets of welding heads are arranged in a line along the welding line is used, and the tail end of the preceding material and the tip of the following material are automatically welded by one-layer welding. Is welded by the head on the rear side in the welding direction to the welding start point on the head on the front side in the welding direction, so that a welding end point is formed at the end of the plate, and welding defects that cause cutting of the material in the looping process and forming process Is easy to occur. Further, the welded portion easily protrudes from the end face of the material at the end point of the welding, and the protruded welded portion is liable to damage the tool in the edge mirror.

〔発明の目的〕[Object of the invention]

本発明は前記課題を解決するためになしたもので、材
料継ぎ時間を短縮して作業能率の向上を図ることを目的
とする。SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems, and has as its object to shorten work splicing time and improve work efficiency.

〔課題を解決するための手段〕[Means for solving the problem]

本発明の材料継ぎ溶接方法は、材料移送ラインの両側
に、先行材料P1の尾端及び後行材料P2の先端を突き合わ
せ溶接する互いに独立して駆動可能な他端側溶接機６と
一端側溶接機５を配置し、該一端側溶接機５は溶接ヘッ
ド5Aが前記材料の一端部の所定位置ａから溶接を開始し
て他端側溶接機６側の所定位置ｂまで溶接した後逆送
し、前記他端側溶接機６は溶接ヘッド6Aが前記材料の他
端部の所定位置ｃから溶接を開始し、溶接ヘッド6Aが前
記一端側溶接機５の溶接終点ｂを所定量通過するまで溶
接するようにしたことを特徴としたものである。Materials joint welding method of the present invention, the material on both sides of the transfer line, prior material P 1 of the tail and the following materials independently drivable other end welder 6 and the one end to butt weld the tip of P 2 After the welding head 5A starts welding from a predetermined position a at one end of the material and welds to a predetermined position b at the other end welding machine 6, the one-side welding machine 5 reverses. In the other end welding machine 6, the welding head 6A starts welding from a predetermined position c at the other end of the material, and the welding head 6A passes a welding end point b of the one end welding machine 5 by a predetermined amount. It is characterized by having been welded up to.

また、本発明の材料継ぎ溶接装置は、材料継ぎ溶接装
置の材料移送ラインの入側に、後行材料P2の両端を案内
する入側ガイド装置１と後行材料P2の先端をクランプす
る入側クランプ装置３を、材料移送ラインの出側に、先
行材料P1の両端を案内する出側ガイド装置２と先行材料
P1の後端をクランプする出側クランプ装置４を設け、前
記入側クランプ装置３と出側クランプ装置４の間に、材
料移送方向と直角方向に移動可能な、一端側溶接機５
と、他端側溶接機６とを設け、前記一端側溶接機５に
は、材料の一端から溶接を開始させるための駆動装置12
が設けられ、前記他端側溶接機６には、材料の他端から
溶接開始させるための駆動装置13が設けられていること
にある。The material splicing welding apparatus of the present invention, the entry side of the material transfer line of the material joint welding device, for clamping a leading end of the trailing material P 2 and inlet side guide apparatus 1 for guiding the ends of the trailing material P 2 the inlet side clamp device 3, on the outlet side of the material transfer line, outlet side guide apparatus 2 and the preceding material for guiding the ends of the preceding material P 1
The outlet side clamp device 4 for clamping the rear end of the P 1 provided between the entering-side clamp device 3 and the outlet side clamp device 4, which is movable in the material transport direction perpendicular to the direction, one end welder 5
A welding device 6 for starting welding from one end of the material.
The welding device 6 is provided with a driving device 13 for starting welding from the other end of the material.

〔作 用〕(Operation)

後行材料P2の先端と先行材料P1の後端とを突き合わせ
た後、一端側溶接機５は突き合わされた材料P1、P2の一
側から、また、他端側溶接機６の突き合わされた材料
P1、P2の他側から溶接作動しながら互いに接近移動し、
一端側溶接機５は一定距離（溶接始点ａから溶接始点ｂ
まで）移動した後、他端側溶接機６と干渉しないように
停止、逆送して元の溶接始点ａまで戻るが、他端側溶接
機６は溶接始点ｃから前記一端側溶接機５の溶接終点ｂ
を所定量通過するまで溶接しながら移動する。このた
め、先行材料P1の尾端及び後行材料P2の先端は一端側溶
接機５と他端側溶接機６により材料の両端から内側に向
かって溶接されるから、溶接終点における溶接欠陥が継
手の両端部に生じることはない。After butting the rear end of the preceding material P 1 and the leading end of the trailing material P 2, from one side of one end welder 5 matched material P 1, P 2, also, the other end welder 6 Butted material
While welding operation from the other side of the P 1, P 2 and moved closer to each other,
One end side welding machine 5 is fixed distance (from welding start point a to welding start point b
After the movement, it stops so that it does not interfere with the other end side welding machine 6, and is returned to the original welding start point “a”, but the other end side welding machine 6 is moved from the welding start point “c” to the one end side welding machine 5. Welding end point b
And moves while welding until a predetermined amount has passed. Therefore, since the preceding material tail end and of the trailing material P 2 tip of P 1 is welded from both ends of the material by one end welder 5 and the other end side welder 6 inwardly, welding defects in the welding end point Does not occur at both ends of the joint.

〔実 施 例〕〔Example〕

以下、本発明の一実施例を第１図〜第３図に沿って説
明する。An embodiment of the present invention will be described below with reference to FIGS.

材料移送ライン上には、後行材料P2の両端を案内する
入力ガイド装置１及び先行材料P1の両端を案内する出側
ガイド装置２と、これらのガイド装置１、２より両端を
案内されて芯出し配置され、突き合わせられた先行材料
P1の尾端と後行材料P2の先端を夫々クランプする油圧作
動の入力クランプ装置３及び出側クランプ設置４とが設
けらてれいる。On the material transfer line, the outlet side guide apparatus 2 for guiding the ends of the input guide apparatus 1 and the preceding material P 1 for guiding the ends of the trailing material P 2, is guided at both ends than the guide device 1,2 Preceding material aligned and aligned
An input clamping device 3 and the delivery side clamp placed 4 hydraulic actuation respectively clamp the tip of the tail and the following material P 2 P 1 is shy et provided.

入側・出側クランプ装置３、４の間には夫々、前記ク
ランプ装置３、４によりクランプされた先行材料P1尾端
及び後行材料P2の先端を溶接線に沿って溶接する一端側
溶接機５及び他端側溶接機６から設けられ、また、前記
溶接機５、６に夫々隣合わせて、先行材料P1及び後行材
料P2の端面を押え込むサイド押えメタル７、８が設けら
れている。Each Between inlet side-outlet side clamp devices 3, one end of welding the tip end of the clamped leading material P 1 tail and the following material P 2 by the clamping devices 3 along the weld line provided from the welding machine 5 and the other end welder 6, also in conjunction respectively adjacent to the welding machine 5,6, prior materials P 1 and the side presser metal 7,8 hold down the end surface of the trailing material P 2 is provided Have been.

本発明例では、一端側溶接機５は、溶接ヘッドが一個
設けられており、他端側溶接機６には溶接ヘッドが複数
個設けられているので、以下、一端側溶接機５を１ヘッ
ド溶接機、また、他端側溶接機を複数ヘッド溶接機と称
することとする。In the example of the present invention, the one end side welding machine 5 is provided with one welding head, and the other end side welding machine 6 is provided with a plurality of welding heads. The welding machine and the other end welding machine are referred to as a multiple head welding machine.

１ヘッド溶接機５は、架台９に設けた回転可能で、か
つ、材料移送ラインと直角方向に配設されたスクリュ軸
10Aに螺合すると共に、ガイドバー11に摺動可能に嵌合
し、架台９に設けた駆動装置12によりスクリュ軸10Aを
介してガイドバー11に沿い材料移送ラインと直角方向に
摺動可能となっている。The one-head welding machine 5 is a screw shaft provided on a gantry 9 and rotatable and disposed at right angles to a material transfer line.
10A and can be slidably fitted to the guide bar 11 and can be slid in a direction perpendicular to the material transfer line along the guide bar 11 via the screw shaft 10A by the driving device 12 provided on the gantry 9. Has become.

この１ヘッド溶接機５は、溶接ヘッド5Aが前記材料の
一端部（図示左側）の所定位置ａから溶接を開始して複
数ヘッド溶接機６側の所定位置ｂまで溶接し、後述する
複数ヘッド溶接機６と干渉しないように溶接停止、逆送
して元の溶接始点ａまで戻るように設けられている。In the one-head welding machine 5, the welding head 5A starts welding from a predetermined position a at one end (left side in the figure) of the material and welds to a predetermined position b on the multiple head welding machine 6 side. The welding is stopped so that it does not interfere with the machine 6, and is fed back to return to the original welding start point a.

また、複数ヘッド溶接機６は、架台９に設けた回転可
能で、かつ、材料移送ラインと直角方向に配設されたス
クリュ軸10Bに螺合すると共に、ガイドバー11に摺動可
能に嵌合し、架台９に設けた駆動装置13によりスクリュ
軸10Bを介してガイドバー11に沿い材料移送ラインと直
角方向に移動可能となっている。The multi-head welding machine 6 is rotatably provided on the gantry 9 and is screwed to a screw shaft 10B disposed in a direction perpendicular to the material transfer line, and is slidably fitted to the guide bar 11. The drive unit 13 provided on the gantry 9 can move in a direction perpendicular to the material transfer line along the guide bar 11 via the screw shaft 10B.

この複数ヘッド溶接機６は複数組の溶接ヘッド6A（実
施例では３組）が溶接線に沿い所定問題を置いて配置さ
れており、使用される溶接ヘッド6Aの内の最も反１ヘッ
ド溶接機５側の溶接ヘッド（実施例では真中の溶接ヘッ
ド）が前記材料の他端部（図示右側）の所定位置ｃから
溶接開始し、かつ、最も１ヘッド溶接機５側の溶接ヘッ
ド（実施例では図示左端の溶接ヘッド）が所定位置ｃ′
から溶接を開始して前記１ヘッド溶接機５の溶接終点ｂ
を所定量通過するまで溶接するように設けられている。The multiple head welding machine 6 has a plurality of sets of welding heads 6A (three sets in the embodiment) arranged along a welding line with a predetermined problem, and is the most anti-one head welding machine among the welding heads 6A used. The welding head on the 5th side (the middle welding head in the embodiment) starts welding from a predetermined position c at the other end (right side in the figure) of the material, and the welding head on the 1st head welding machine 5 side (in the embodiment). The welding head at the left end in the figure) is at the predetermined position c '.
From the welding end point b of the one-head welding machine 5
Is welded until a predetermined amount passes.

前記１ヘッド溶接機５の溶接終点ｂは、溶接機５、６
の溶接開始を同時とした場合に溶接機５、６が互いに接
近するが干渉しないように、溶接機５の溶接停止後、逆
送開始した時点で溶接機６と所定間隔だけ離れているよ
うに設定されている。The welding end point b of the one-head welding machine 5 is the welding machine 5, 6
When welding starts at the same time, the welding machines 5 and 6 approach each other but do not interfere with each other. Is set.

サイド押えメタル７、８は空圧シリンダ14、15のロッ
ド先端に夫々装着されており、材料移送ライン上の先行
材料P1及び後行材料P2の端面間に跨がって該端面を押さ
え込み可能となっている。Side pressing metal 7,8 are respectively mounted on the rod end of the pneumatic cylinder 14 and 15, the hold-down the end face straddling between the end surfaces of the material transfer line prior materials P 1 and the following material P 2 It is possible.

以上の構成において、駆動装置12、13の同時作動によ
りガイドバー11に案内されて１ヘッド溶接機５の溶接ヘ
ッド5Aは材料P1、P2の一端部（図示左側）から内側に向
かって溶接移動し、また、複数ヘッド溶接機６（使用ヘ
ッド数２）の溶接ヘッド6A2は材料P1、P2の他端部（図
示右側）から内側に向かって溶接移動し、溶接ヘッド6A
1は、溶接ヘッド6A2によりピッチL2離れた所より内側に
向かって溶接移動してクランプ装置３、４によりクラン
プされた先行材料P1の尾端及び後行材料P2の先端が溶接
接続される。In the above configuration, the welding head 5A of the one-head welding machine 5 is welded inward from one end (left side in the drawing) of the materials P 1 and P 2 by being guided by the guide bar 11 by the simultaneous operation of the driving devices 12 and 13. The welding head 6A 2 of the multi-head welding machine 6 (the number of used heads 2) moves inward from the other ends (the right side in the drawing) of the materials P 1 and P 2 to move inward.
1 is a welding connection in which the tail end of the preceding material P 1 and the front end of the succeeding material P 2 clamped by the clamping devices 3 and 4 by welding movement by the welding head 6A 2 inward from a place separated by the pitch L 2 are welded. Is done.

ところで、前記駆動装置12、13の制御によって、１ヘ
ッド溶接機５は溶接始点ａから溶接終点ｂまで移動した
後、複数ヘッド溶接機６と干渉しないように停止、逆送
して元の溶接始点ａまで戻る。また、複数ヘッド溶接機
６は溶接始点ｃ、ｃ′から前記１ヘッド溶接機５の溶接
終点ｂを所定量通過するまで移動するから、先行材料P1
の尾端及び後行材料P2の先端は１ヘッド溶接機５と複数
ヘッド溶接機６により材料の両端から溶接され、１ヘッ
ド溶接機５により継手の一端から途中まで溶接され、か
つ、複数ヘッド溶接機６により継手の他端から溶接され
て前記１ヘッド溶接機５の溶接残り部分が溶接されるこ
とになり、溶接終点における溶接欠陥が継手の両端部に
生じることはない。Under the control of the driving devices 12 and 13, the one-head welding machine 5 moves from the welding start point a to the welding end point b, and then stops so as not to interfere with the plural-head welding machine 6, and is fed back to return to the original welding start point. Return to a. Further, since the multi-head welding machine 6 moves from the welding start points c and c 'until it passes the welding end point b of the one-head welding machine 5 by a predetermined amount, the preceding material P 1
'S tail end and of the trailing material P 2 tip is welded from both ends of the material by 1 head welding machine 5 and a plurality heads welder 6, it is welded by a head welding machine 5 to the middle from one end of the joint, and, more heads The welding is performed from the other end of the joint by the welding machine 6, and the remaining welding portion of the one-head welding machine 5 is welded, so that welding defects at the welding end point do not occur at both ends of the joint.

また、１ヘッド溶接機５と複数ヘッド溶接機６の溶接
始点ａ、ｃにはサイド押えメタル７、８が設けられてお
り、継手の両端部において溶接部が材料端面から張り出
すことはなく、後工程のエッジミラーでの工具の損傷を
少なくすることができる。Further, side holding metals 7 and 8 are provided at the welding start points a and c of the one-head welding machine 5 and the plural-head welding machine 6, and the welded portions do not protrude from the material end surfaces at both ends of the joint. It is possible to reduce damage to the tool in the edge mirror in a later process.

溶接始点ａ、ｃにサイド押えメタル７、８が設けられ
ているため、該サイド押えメタル７、８と、元の溶接始
点ａ、ｃまで戻る１ヘッド溶接機５の溶接ヘッド5Aと複
数ヘッド溶接機６の溶接ヘッド6Aとの干渉が生じる恐れ
があるが、これは溶接ヘッド5A、6Aを上昇させることに
より回避される。Since the side holding metals 7, 8 are provided at the welding start points a, c, the side holding metals 7, 8 and the welding head 5A of the one-head welding machine 5 returning to the original welding start points a, c and multiple head welding are performed. Interference with the welding head 6A of the machine 6 may occur, but this is avoided by raising the welding heads 5A, 6A.

次に、第４図を参照して本発明の溶接装置により溶接
される最小材料幅について説明する。Next, the minimum material width to be welded by the welding apparatus of the present invention will be described with reference to FIG.

１ヘッド溶接機５と複数ヘッド溶接機６の溶接ヘッド
１組当たりの最小溶接長さ:l1、１ヘッド溶接機５と複
数ヘッド溶接機６が最も接近した時の最小間隔:L1、複
数ヘッド溶接機６の溶接ヘッド間隔:L2（L1、L2は固定
された値、l1は変更できる値）とすると、最小材料幅Ｗ
は次式で表される。Minimum welding length per set of welding heads of one-head welding machine 5 and multiple-head welding machine 6: l 1 , Minimum spacing when one-head welding machine 5 and multiple-head welding machine 6 come closest to each other: L 1 , multiple welding head distance of the head welder 6: L 2 (L 1, L 2 is a fixed value, l 1 is the value that can be changed) When the minimum material width W
Is represented by the following equation.

即ち、１ヘッド溶接位５だけ使用した場合にはＷ＝l1
であるのに対し、１ヘッド溶接機５と複数ヘッド溶接機
６を併用した本発明の場合、 複数ヘッド溶接機６の溶接ヘッド使用数１の時に（こ
の時の溶接ヘッド総数は２）、 Ｗ＝l1＋L1＋l1 ……（１） 実施例のように、複数ヘッド溶接機６の溶接ヘッド使
用数２の時（この時の溶接ヘッド総数は３）、 Ｗ＝l1＋L1＋l1＋L1 ……（２） 複数ヘッド溶接機６の溶接ヘッド使用数３の時（この
時の溶接ヘッド総数は４）、 Ｗ＝l1＋L1＋l1＋２×L2 ……（３） 複数ヘッド溶接機６の溶接ヘッドの使用数４の時（こ
の時の溶接ヘッド総数は５）、 Ｗ＝l1＋L1＋l1＋３×L2 ……（４） 仮に、溶接ヘッド総数４として溶接ヘッド間隔がL2で
ある２ヘッド溶接機２台使用し、これらを２台とも材料
の両端から内側に向かって溶接移動させると、この場合
の最小材料幅Ｗを求める式は前記式（３）と同じくなる
が、第５図に示す如く、L2＞l1であると両溶接機が干渉
直前L1となっても溶接間隔L2に配置された溶接ヘッドの
全てが溶接完了しないので、未溶接部分が生じないよう
にするためにはl1＞L2の条件が必要となる。これに対し
て、１ヘッド＋複数ヘッドの本発明では、１ヘッド溶接
機の溶接終点を通過して複数ヘッド溶接機により溶接
し、１ヘッド溶接機により溶接し、１ヘッド溶接機の溶
接残り部分を溶接することによってL2に対するl1の数値
上の制約をなくしているので、実際には本発明の前記式
（３）で得られる最小材料幅Ｗの方が、２ヘッド溶接機
を２台使用した場合の最小材料幅Ｗより小さくなり、ま
た、溶接時間を短縮する上でも有利となる。That is, when only one head welding position 5 is used, W = l 1
In contrast, in the case of the present invention in which the one-head welding machine 5 and the multiple-head welding machine 6 are used in combination, when the number of welding heads used by the multiple-head welding machine 6 is 1 (the total number of welding heads at this time is 2), W = L 1 + L 1 + l 1 (1) As in the embodiment, when the number of welding heads used by the plural-head welding machine 6 is 2 (the total number of welding heads at this time is 3), W = l 1 + L 1 + l 1 + L 1 ... (2) When the number of welding heads used by the multi-head welding machine 6 is 3 (the total number of welding heads at this time is 4), W = l 1 + L 1 + l 1 + 2 × L 2. When the number of welding heads used in the welding machine 6 is 4 (the total number of welding heads at this time is 5), W = l 1 + L 1 + l 1 + 3 × L 2 (4) Assuming that the total number of welding heads is 4, the welding head interval When two two-head welding machines with L 2 are used and these two are welded inward from both ends of the material, The formula for obtaining the minimum material width W in the case is the same as the formula (3), but as shown in FIG. 5, when L 2 > l 1 , the welding distance L is set even if both welding machines are at L 1 just before the interference. Since all of the welding heads arranged in 2 are not welded, the condition of l 1 > L 2 is necessary to prevent the occurrence of unwelded portions. On the other hand, in the present invention of one head + multiple heads, the welding end point of the one-head welding machine is passed, welding is performed by the plural-head welding machine, welding is performed by the one-head welding machine, and the remaining portion of the one-head welding machine is welded. In practice, the numerical limitation of l 1 with respect to L 2 is eliminated by welding, so that the minimum material width W obtained by the above formula (3) of the present invention is actually larger than that of two 2-head welding machines. This is smaller than the minimum material width W when used, and is advantageous in shortening the welding time.

但し、２ヘッド溶接機２台を使用する場合l1＞L2の条
件を満たしておれば溶接作業に何ら問題はない。However, when two 2-head welding machines are used, there is no problem in the welding operation if the condition of l 1 > L 2 is satisfied.

例えばl1＝100mm、L1＝250mm、L2＝450mmとすると、
最小材料幅Ｗは前記式（１）、（２）、（３）、（４）
に従って 溶接ヘッド総数２の時、Ｗ＝450mm 溶接ヘッド総数３の時、Ｗ＝900mm 溶接ヘッド総数４の時、Ｗ＝1350mm 溶接ヘッド総数５の時、Ｗ＝1900mm となるから、最大材料幅が1950mm程度までなら、溶接ヘ
ッド総数は１ヘッド＋３ヘッドの４を選択するのが適当
である。For example, if l 1 = 100 mm, L 1 = 250 mm, and L 2 = 450 mm,
The minimum material width W is calculated by the above formulas (1), (2), (3), and (4).
Therefore, when the total number of welding heads is 2, W = 450mm, when the total number of welding heads is 3, W = 900mm, when the total number of welding heads is 4, W = 1350mm, and when the total number of welding heads is 5, W = 1900mm, the maximum material width is 1950mm. To this extent, it is appropriate to select 4 of 1 head + 3 heads as the total number of welding heads.

また、L2＞l1であるから、上記、は夫々２ヘッド
＋２ヘッド、２ヘッド＋３ヘッドでは未溶接含分が生じ
てしまうが、１ヘッド＋３ヘッド、１ヘッド＋４ヘッド
（本発明）ではそのようなことはなく溶接を良好に完了
できる。In addition, since L 2 > l 1 , the above-mentioned results in the non-welded content in 2 heads + 2 heads and 2 heads + 3 heads, respectively, but in 1 head + 3 heads and 1 head + 4 heads (the present invention), It is possible to complete the welding satisfactorily.

〔発明の効果〕〔The invention's effect〕

以上の通り本発明は、一端側溶接機と他端側溶接機に
より材料の両端から溶接し、しかも一端側溶接機の溶接
終点を通過して溶接する他端側溶接機により一端側溶接
機の溶接残り部分を溶接することができるから、溶接終
点における溶接欠陥が継手の両端部に生じることはな
く、溶接部での切断事故を確実に防止し得る。従って、
連続的な製管処理等が可能となり、生産能率の大幅な向
上が図れる。As described above, the present invention provides a method for welding one end of a welding machine using one end welding machine and the other end welding machine welding from both ends of the material by the other end welding machine and passing the welding end point of the one end welding machine. Since the remaining welding portion can be welded, welding defects at the welding end point do not occur at both ends of the joint, and a cutting accident at the welded portion can be reliably prevented. Therefore,
Continuous pipe-making and the like can be performed, and the production efficiency can be greatly improved.

また、溶接される最小材料幅を極力小さくして溶接時
間を短縮できるから、溶接作業の能率向上が図れる。In addition, the welding time can be reduced by minimizing the minimum material width to be welded, so that the efficiency of the welding operation can be improved.

更に、一端側溶接機と他端側溶接機の有効な組み合わ
せで済むから、設備費用の低減と設備のシンプル化に有
効である。Further, since an effective combination of the one end welding machine and the other end welding machine is sufficient, it is effective in reducing equipment costs and simplifying equipment.

【図面の簡単な説明】[Brief description of the drawings]

第１図は本発明の一実施例を示す正面図、第２図、第３
図は平面図、左側面図、第４図は溶接方法を示す概念
図、第５図は作用説明図である。 P1……先行材料、P2……後行材料、１……入側ガイド装
置、２……出側ガイド装置、３……入側クランプ装置、
４……出側クランプ装置、５……一端側溶接機（１ヘッ
ド溶接機）、5A……溶接ヘッド、６……他端側溶接機
（複数ヘッド溶接機）、6A……溶接ヘッド、７、８……
サイド押えメタル、９……架台、10A、10B……スクリュ
軸、11……ガイドバー、12、13……駆動装置、14、15…
…空圧シリンダ。FIG. 1 is a front view showing one embodiment of the present invention, FIG.
The figure is a plan view, a left side view, FIG. 4 is a conceptual diagram showing a welding method, and FIG. 5 is an operation explanatory view. P 1 … preceding material, P 2 … following material, 1… entry guide device, 2… exit guide device, 3… entry clamp device,
4... Outlet clamping device, 5... One end welding machine (one head welding machine), 5A... Welding head, 6... The other end welding machine (multiple head welding machine), 6A. , 8 ...
Side presser metal, 9 ... stand, 10A, 10B ... screw shaft, 11 ... guide bar, 12, 13 ... drive unit, 14, 15 ...
... pneumatic cylinder.

Claims (2)

(57)【特許請求の範囲】(57) [Claims] 【請求項１】材料移送ラインの両側に、先行材料の尾端
及び後行材料の先端を突き合わせ溶接する互いに独立し
て駆動可能な他端側溶接機と一端側溶接機を配置し、該
一端側溶接機は溶接ヘッドが前記材料の一端部の所定位
置から溶接を開始して他端側溶接機側の所定位置まで溶
接した後逆送し、前記他端側溶接機は溶接ヘッドが前記
材料の他端部の所定位置から溶接を開始し、溶接ヘッド
が前記一端側溶接機の溶接終点を所定量通過するまで溶
接するようにしたことを特徴とする材料継ぎ溶接方法。1. An independently drivable other end welding machine and one end welding machine for butt-welding a tail end of a preceding material and a front end of a following material on both sides of a material transfer line. In the side welding machine, the welding head starts welding from a predetermined position at one end of the material, welds to a predetermined position on the other end side of the welding machine, and then reversely feeds the welding head. Welding from a predetermined position at the other end of the welding machine, and welding until the welding head passes a predetermined amount of the welding end point of the one end welding machine. 【請求項２】材料継ぎ溶接装置の材料移送ラインの入側
に、後行材料の両端を案内する入側ガイド装置と後行材
料の先端をクランプする入側クランプ装置を、材料移送
ラインの出側に、先行材料の両端を案内する出側ガイド
装置と先行材料の後端をクランプする出側クランプ装置
を設け、前記入側クランプ装置と出側クランプ装置の間
に、材料移送方向と直角方向に移動可能な、一端側溶接
機と他端側溶接機とを設け、前記一端側溶接機には、材
料の一端から溶接を開始させるための駆動装置が設けら
れ、前記他端側溶接機には、材料の他端から溶接開始さ
せるための駆動装置が設けられていることを特徴とする
材料継ぎ溶接装置。2. An inlet guide device for guiding both ends of a succeeding material and an inlet clamp device for clamping the leading end of the succeeding material are provided at the entrance side of the material transfer line of the material splicing welding apparatus. On the side, an output guide device for guiding both ends of the preceding material and an output clamp device for clamping the rear end of the preceding material are provided, and a direction perpendicular to the material transfer direction is provided between the input clamp device and the output clamp device. The one end side welding machine and the other end side welding machine are provided, and the one end side welding machine is provided with a driving device for starting welding from one end of the material. Is a driving device for starting welding from the other end of the material.
JP1016636A 1989-01-26 1989-01-26 Material joining method and apparatus Expired - Lifetime JP2825832B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1016636A JP2825832B2 (en) 1989-01-26 1989-01-26 Material joining method and apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1016636A JP2825832B2 (en) 1989-01-26 1989-01-26 Material joining method and apparatus

Publications (2)

Publication Number Publication Date
JPH02197376A JPH02197376A (en) 1990-08-03
JP2825832B2 true JP2825832B2 (en) 1998-11-18

Family

ID=11921848

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1016636A Expired - Lifetime JP2825832B2 (en) 1989-01-26 1989-01-26 Material joining method and apparatus

Country Status (1)

Country Link
JP (1) JP2825832B2 (en)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6084176U (en) * 1983-11-16 1985-06-10 三菱電機株式会社 Arc welding machine for strips
JPS60108474U (en) * 1983-12-28 1985-07-23 三菱重工業株式会社 Cutting and welding equipment in steel strip relay equipment

Also Published As

Publication number Publication date
JPH02197376A (en) 1990-08-03

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