JPH04288990A - Welding method for work with stiffener - Google Patents
Welding method for work with stiffenerInfo
- Publication number
- JPH04288990A JPH04288990A JP5146191A JP5146191A JPH04288990A JP H04288990 A JPH04288990 A JP H04288990A JP 5146191 A JP5146191 A JP 5146191A JP 5146191 A JP5146191 A JP 5146191A JP H04288990 A JPH04288990 A JP H04288990A
- Authority
- JP
- Japan
- Prior art keywords
- welding
- plate
- stiffener
- flat plate
- work
- 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
- 238000003466 welding Methods 0.000 title claims abstract description 85
- 239000003351 stiffener Substances 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims abstract description 31
- 230000004907 flux Effects 0.000 claims abstract 2
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 6
- 229910002092 carbon dioxide Inorganic materials 0.000 description 3
- 239000001569 carbon dioxide Substances 0.000 description 3
- 230000003028 elevating effect Effects 0.000 description 2
- 239000011324 bead Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Landscapes
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
Description
【０００１】0001
【産業上の利用分野】この発明は、船舶，橋梁等に用い
られる補剛材付きワークにおいて、平板と補剛材とを溶
着する溶接方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a welding method for welding a flat plate and a stiffener in a workpiece with a stiffener used for ships, bridges, etc.
【０００２】0002
【従来の技術】船舶，橋梁等に多く用いられる補剛材付
きワーク，即ち平板に平行した複数の防撓材である補剛
材を組み合せた溶接構造物のユニット（ブロック）の組
立溶接には、図６に示すように多電極自動すみ肉溶接機
２０を使用して、平板２１と補剛材２２とを溶接する方
法が、従来から一般に知られている。[Prior Art] Workpieces with stiffeners often used in ships, bridges, etc., i.e., welding units (blocks) of welded structures that combine stiffeners, which are multiple stiffeners parallel to a flat plate, are used for assembly and welding. As shown in FIG. 6, a method of welding a flat plate 21 and a stiffener 22 using a multi-electrode automatic fillet welding machine 20 has been generally known.
【０００３】0003
【この発明が解決しようとする課題】しかしこの従来の
溶接方法では、図７に示すように、溶接に伴い平板２１
に溶接変形が生じるので、塑性加工によって正常な形状
に矯正（歪み取り）をしなければならない。そのため図
８に示すような大形プレス２３での矯正作業を、溶接工
程とは別の作業場で分業させ、矯正作業を専用工程とし
て設けている。[Problems to be Solved by the Invention] However, in this conventional welding method, as shown in FIG.
Since welding deformation occurs, it is necessary to correct the shape (remove distortion) by plastic working. Therefore, the straightening work in the large press 23 as shown in FIG. 8 is divided into a separate workshop from the welding process, and the straightening work is provided as a dedicated process.
【０００４】そしてこの矯正工程は、一般に溶接工程よ
りも、作業時間が多くかかってしまう。そのため、一連
のワーク生産ラインにおいて、この歪み取りの矯正工程
が障害となり、ワークの生産性が阻害されてしまうこと
が多い。[0004] This straightening process generally takes more time than the welding process. Therefore, in a series of workpiece production lines, this straightening process for removing distortion often becomes an obstacle, impeding workpiece productivity.
【０００５】この発明は前述した事情に鑑みて創案され
たもので、その目的は補剛材の溶着作業時に平板に生じ
る歪みを取り除く矯正工程を無くすことができ、一連の
ワーク生産ラインにおける生産性を向上させることので
きる補剛材付きワークの溶接方法を提供することにある
。[0005] This invention was devised in view of the above-mentioned circumstances, and its purpose is to eliminate the straightening process for removing distortions that occur in flat plates during welding of stiffeners, thereby increasing productivity in a series of workpiece production lines. An object of the present invention is to provide a method for welding a workpiece with a stiffener, which can improve the performance.
【０００６】[0006]
【課題を解決するための手段】この発明によればワーク
となる平板への補剛材の溶接を、曲率半径８〜１５ｍｍ
の円弧キャンバーを持つ定盤により平板に逆歪みを与え
ながら、多電極自動すみ肉溶接機によって溶接すること
で行う。[Means for Solving the Problems] According to the present invention, a stiffener can be welded to a flat plate serving as a workpiece with a radius of curvature of 8 to 15 mm.
Welding is performed using a multi-electrode automatic fillet welder while applying reverse strain to the flat plate using a surface plate with an arcuate camber.
【０００７】また定盤における曲率半径の設定、即ち溶
接終了後における平板の溶接変形を全くゼロとする逆歪
みを与える適正曲率半径の設定は、平板の板厚が６〜３
０ｍｍで、すみ肉溶接の脚長が４〜８ｍｍの範囲の時に
、被服アーク溶接において１１ｍとなり、また炭酸ガス
アーク溶接において１３ｍとなる。このように出願人は
、溶接時の平板に生じる歪みを取る曲率半径が、平板の
板厚およびすみ肉溶接の脚長のいかんに拘らず、それぞ
れの溶接方法について一定であることを確認している。Furthermore, the setting of the radius of curvature of the surface plate, that is, the setting of the appropriate radius of curvature that provides a reverse strain that makes the welding deformation of the flat plate completely zero after welding is completed, is necessary when the thickness of the flat plate is 6 to 3.
0 mm, and when the leg length of fillet welding is in the range of 4 to 8 mm, it is 11 m in covered arc welding and 13 m in carbon dioxide arc welding. In this way, the applicant has confirmed that the radius of curvature that takes up the distortion that occurs in the flat plate during welding is constant for each welding method, regardless of the plate thickness of the flat plate and the leg length of fillet welding. .
【０００８】さらに溶接機としては、従来の被覆アーク
溶接およびソリッドワイヤを用いる炭酸ガスアーク溶接
法を用いると、図１に示すように、平板３を円弧状にす
ることから補剛材４が傾斜した状態となるので、溶接ビ
ートが垂れ下がって正常なすみ肉形状を示さない欠点が
あった。しかし最近、炭酸ガスアーク溶接等シールドガ
スアーク溶接のフラックス入り溶接ワイヤーを用いた溶
接で傾斜した状態でも正しい溶接ができるようになった
ので、このフラックス入りワイヤーを用いた溶接機を使
用する。Furthermore, as shown in FIG. 1, when the welding machine uses conventional covered arc welding and carbon dioxide gas arc welding using a solid wire, the stiffener 4 is tilted because the flat plate 3 is made into an arc shape. As a result, the weld bead sagged and did not exhibit a normal fillet shape. However, recently, it has become possible to perform correct welding even in inclined conditions when using flux-cored welding wire for shielded gas arc welding, such as carbon dioxide arc welding, so a welding machine that uses this flux-cored wire is used.
【０００９】そしてこれらのことから、平板および補剛
材の溶接作業と、この溶接作業時に生じる平板の歪みを
取る矯正作業とを、同一の工程で行えるようにして、ワ
ーク生産ラインにおける生産性を向上させることのでき
るようにしたものである。[0009] Based on the above, it is possible to perform the welding work of the flat plate and the stiffener and the correction work to remove the distortion of the flat plate that occurs during this welding work in the same process, thereby increasing the productivity in the workpiece production line. This is something that can be improved.
【００１０】0010
【実施例】以下、この発明の補剛材付きワークの溶接方
法を図示する実施例によって説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS The method of welding a workpiece with a stiffener according to the present invention will be explained below with reference to an illustrative example.
【００１１】まずこの発明の溶接方法を実施する溶接設
備の一例について述べると、補剛材付きワーク２におけ
る平板３と補剛材４とを溶着する溶接設備１（図１参照
）は、フラックス入り溶接ワイヤーを用いた多電極自動
すみ肉溶接機５と、この多電極自動すみ肉溶接機５の下
方に設置されており、平板３が載置される円弧形状の定
盤６と、平板３の幅寸法が変わってもセンタリングでき
るように、ワーク中心線を定盤６の中央位置に揃える自
動センタリング装置７と、定盤６にワーク２を載置した
時に、平板３が円弧状に馴染む状態で弾性的に沿わせる
ための押え装置８とを備えてなっている。First, an example of welding equipment for carrying out the welding method of the present invention will be described. Welding equipment 1 (see FIG. 1) for welding a flat plate 3 and a stiffener 4 in a work 2 with a stiffener is a flux-cored welding equipment 1 (see FIG. 1). A multi-electrode automatic fillet welding machine 5 using welding wire, an arc-shaped surface plate 6 on which the flat plate 3 is placed, and an arc-shaped surface plate 6 installed below the multi-electrode automatic fillet welding machine 5. In order to enable centering even if the width dimension changes, there is an automatic centering device 7 that aligns the center line of the workpiece to the center position of the surface plate 6, and an automatic centering device 7 that aligns the center line of the workpiece to the center position of the surface plate 6, and when the workpiece 2 is placed on the surface plate 6, the flat plate 3 adjusts to an arc shape. It is equipped with a presser device 8 for elastically aligning it.
【００１２】そしてこの溶接設備１における定盤６は、
下部に複数設置されている調節装置９により調節するこ
とで、必要に応じて円弧状の曲率半径を適正値に設定で
きるようになっており、ワーク２における平板３へ溶接
歪みに対する弾性逆歪みを与えられるようになっている
。[0012] The surface plate 6 in this welding equipment 1 is
The radius of curvature of the arc shape can be set to an appropriate value as necessary by adjusting it with the adjustment devices 9 installed in plurality at the bottom. It is meant to be given.
【００１３】なおこの実施例での自動センタリング装置
７は、定盤６の下部に設けられている駆動部７ａと、こ
の駆動部７ａにより移動自在で定盤６の上面に突出して
おり、定盤６の中央位置で互いに当接する両当接部７ｂ
， ７ｂとからなり、平板３の両端を両当接部７ｂ，
７ｂて挟持するようにして幅寄せを行ってセンタリング
するように構成されている。また押え装置８は、ロッド
の先端に押え部８ａを有する油圧シリンダーで構成され
ている。The automatic centering device 7 in this embodiment includes a drive section 7a provided at the bottom of the surface plate 6, and a drive section 7a that is movable by the drive section 7a and protrudes from the top surface of the surface plate 6. Both contact portions 7b contact each other at the center position of 6.
, 7b, and both ends of the flat plate 3 are connected to both contact parts 7b,
7b, and is configured to perform width adjustment and centering by sandwiching them. Further, the holding device 8 is constituted by a hydraulic cylinder having a holding portion 8a at the tip of a rod.
【００１４】さらに調節装置９（図３〜図５参照）は、
定盤６を支持すべく下部に複数設置されている支持バー
１０と、この各支持バー１０を上下動させるパルスモー
ター１１ａおよびスクリュージャッキ１１ｂ等からなる
昇降駆動部１１と、この昇降駆動部１１による各支持バ
ー１０の上下動をガイドする昇降ガイド部１２とからな
っている。そして定盤６の中央位置から両端における各
位置を支持する支持バー１０の高さを、中央部で高くす
ると共に、両端で低くすることにより、平板３へ溶接歪
みに対する弾性逆歪みを与えられるように、定盤６の曲
率半径を適正値に設定できるように構成されている。Furthermore, the adjustment device 9 (see FIGS. 3 to 5)
A plurality of support bars 10 are installed at the bottom to support the surface plate 6, an elevating drive unit 11 consisting of a pulse motor 11a, a screw jack 11b, etc. that moves each of the support bars 10 up and down, and the elevating drive unit 11 It consists of an elevation guide section 12 that guides the vertical movement of each support bar 10. By making the height of the support bar 10 that supports each position from the center to both ends of the surface plate 6 higher at the center and lower at both ends, it is possible to apply elastic counter-strain to the flat plate 3 against welding distortion. Furthermore, the radius of curvature of the surface plate 6 can be set to an appropriate value.
【００１５】このような構成からなる溶接設備１を使用
して、平板３の上面に長尺の補剛材４を所定間隔で平行
に複数本配設してなるワーク２を製作する，即ち平板３
と補剛材４とを溶着するに際しては、次に述べるように
して行う。Using the welding equipment 1 having such a configuration, a workpiece 2 is manufactured in which a plurality of long stiffeners 4 are arranged in parallel at predetermined intervals on the upper surface of a flat plate 3, that is, a flat plate. 3
The welding of the stiffener 4 and the stiffener 4 is performed in the following manner.
【００１６】まず調節装置９によって曲率半径を調節し
て適正半径に設定した定盤６の上面に、各補剛材４が配
置された状態の平板３を載置すると共に、自動センタリ
ング装置７で平板３を定盤６に対してセンタリングする
（図２参照）。First, the flat plate 3 with each stiffener 4 arranged thereon is placed on the top surface of the surface plate 6 whose radius of curvature has been adjusted to an appropriate radius by the adjusting device 9, and the automatic centering device 7 Center the flat plate 3 on the surface plate 6 (see FIG. 2).
【００１７】次に押え装置８の押え部８ａで押し付けて
、平板３を定盤６の曲面に沿い変形させて強制的に固定
することにより、平板３の中央部を上面側方向へ、また
補剛材４の長手方向に対する直角方向両端部を下面側方
向へそれぞれ変形した湾曲状態とする（図１参照）。Next, by pressing with the holding part 8a of the holding device 8, the flat plate 3 is deformed along the curved surface of the surface plate 6 and forcibly fixed, thereby moving the central part of the flat plate 3 toward the upper surface side and Both end portions of the rigid member 4 in the direction perpendicular to the longitudinal direction are respectively deformed toward the lower surface side (see FIG. 1).
【００１８】そして定盤６によって溶接歪みに対する逆
歪みを平板３へ与えながら、フラックス入り溶接ワイヤ
ーを用いた多電極自動すみ肉溶接機５で溶接作業を行う
ことで平板３と各補剛材４とをすみ肉溶接することによ
り、補剛材付きワーク２の溶接作業が終了する。Then, while applying a strain opposite to the welding strain to the flat plate 3 using the surface plate 6, the flat plate 3 and each stiffener 4 are welded by a multi-electrode automatic fillet welding machine 5 using flux-cored welding wire. By performing fillet welding, the welding work of the stiffener-equipped workpiece 2 is completed.
【００１９】このように、この発明の溶接方法によれば
、平板３と各補剛材４とを溶接する補剛材付きワーク２
の溶接作業と、溶接による歪みを取る補剛材付きワーク
２の矯正作業とを同一の工程で容易に行うことができ、
ワーク生産ラインの生産性を向上させることができる。As described above, according to the welding method of the present invention, the workpiece 2 with stiffeners is welded to the flat plate 3 and each stiffener 4.
Welding work and straightening work of the workpiece 2 with a stiffener to remove distortion due to welding can be easily performed in the same process,
The productivity of the workpiece production line can be improved.
【００２０】[0020]
【発明の効果】平板および補剛材の溶接作業と、この溶
接作業時に生じる平板の歪みを取る矯正作業とを、同一
の工程で行えるようにして、ワーク生産ラインにおける
生産性を向上させることのできる。またフラックス入り
溶接ワイヤーを用いた溶接機を使用することで、平板を
円弧状にすることから補剛材が傾斜した状態となっても
、正しい溶接作業を行うことができる。[Effects of the Invention] Productivity in the workpiece production line can be improved by making it possible to perform welding of flat plates and stiffeners and correcting work to remove distortion of the flat plates caused during this welding work in the same process. can. Furthermore, by using a welding machine that uses flux-cored welding wire, the flat plate is shaped into an arc, so even if the stiffener is in an inclined state, the welding work can be performed correctly.
【図面の簡単な説明】[Brief explanation of the drawing]
【図１】この発明の補剛材付きワーク２の溶接方法を実
施する溶接設備を示す概略正面図である。FIG. 1 is a schematic front view showing welding equipment for carrying out a method of welding a workpiece 2 with a stiffener according to the present invention.
【図２】この発明の補剛材付きワーク２の溶接方法によ
る溶接工程を示す概略正面図である。FIG. 2 is a schematic front view showing a welding process according to the method of welding a workpiece 2 with a stiffener according to the present invention.
【図３】この発明の補剛材付きワーク２の溶接方法を実
施する溶接設備における調節装置９を示す概略斜視図で
ある。FIG. 3 is a schematic perspective view showing an adjustment device 9 in welding equipment for implementing the method of welding a workpiece 2 with a stiffener according to the present invention.
【図４】図３のＡ−Ａ線拡大断面図である。FIG. 4 is an enlarged cross-sectional view taken along line A-A in FIG. 3;
【図５】図３のＢ−Ｂ線拡大断面図である。FIG. 5 is an enlarged cross-sectional view taken along line BB in FIG. 3;
【図６】従来の溶接方法による溶接設備を示す概略正面
図である。FIG. 6 is a schematic front view showing welding equipment using a conventional welding method.
【図７】従来の溶接方法による溶接時に発生した平板の
歪み状態を示す概略斜視図である。FIG. 7 is a schematic perspective view showing a state of distortion of a flat plate that occurs during welding using a conventional welding method.
【図８】従来の溶接方法における平板の歪み取り工程状
態を示す概略斜視図である。FIG. 8 is a schematic perspective view showing the state of a flat plate strain relief process in a conventional welding method.
１…溶接設備、２…補剛材付きワーク、３…平板、４…
補剛材、５…多電極自動すみ肉溶接機、６…定盤、７…
自動センタリング装置、７ａ…駆動部、７ｂ…当接部、
８…押え装置、８ａ…押え部、９…調節装置、１０…支
持バー、１１ａ…パルスモーター、１１ｂ…スクリュー
ジャッキ、１１…昇降駆動部、１２…昇降ガイド部。1... Welding equipment, 2... Workpiece with stiffener, 3... Flat plate, 4...
Stiffener, 5... Multi-electrode automatic fillet welding machine, 6... Surface plate, 7...
automatic centering device, 7a... drive section, 7b... contact section,
8... Presser device, 8a... Presser section, 9... Adjustment device, 10... Support bar, 11a... Pulse motor, 11b... Screw jack, 11... Lifting drive unit, 12... Lifting guide unit.
Claims (1)
で平行に複数本配設してなるワークにおいて、前記平板
と補剛材とのＴ継手をすみ肉溶接する溶接方法であり、
曲率半径が調節自在である湾曲した定盤の上面に、前記
各補剛材が配置された状態の平板を載置すると共に、定
盤の曲面に沿って変形させて押え装置等で強制的に固定
することにより、平板をその中央部が上面側方向へ、ま
た補剛材の長手方向に対する直角方向両端部が下面側方
向へそれぞれ変形した湾曲状態とし、前記定盤によって
溶接歪みに対する逆歪みを平板へ与えながら、ガスシー
ルドアークでフラックス入り溶接ワイヤーを用いる多電
極自動すみ肉溶接機での溶接作業により、前記平板と補
剛材とを溶着することを特徴とする補剛材付きワークの
溶接方法。1. A welding method for fillet welding a T-joint between the flat plate and the stiffener in a workpiece in which a plurality of long stiffeners are arranged in parallel at predetermined intervals on the upper surface of a flat plate. ,
The flat plate with each of the stiffeners arranged above is placed on the top surface of a curved surface plate whose radius of curvature can be adjusted freely, and the plate is deformed along the curved surface of the surface plate and forced using a holding device or the like. By fixing the plate, the flat plate is made into a curved state in which the center part is deformed toward the upper surface, and both ends of the stiffener in the direction perpendicular to the longitudinal direction are deformed toward the lower surface, and the surface plate is used to counteract the welding strain. Welding of a workpiece with a stiffener, characterized in that the flat plate and the stiffener are welded by welding with a multi-electrode automatic fillet welding machine using a flux-cored welding wire with a gas-shielded arc while applying the flux to the flat plate. Method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5146191A JPH07115224B2 (en) | 1991-03-15 | 1991-03-15 | Welding method for work with stiffener |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5146191A JPH07115224B2 (en) | 1991-03-15 | 1991-03-15 | Welding method for work with stiffener |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04288990A true JPH04288990A (en) | 1992-10-14 |
| JPH07115224B2 JPH07115224B2 (en) | 1995-12-13 |
Family
ID=12887577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5146191A Expired - Lifetime JPH07115224B2 (en) | 1991-03-15 | 1991-03-15 | Welding method for work with stiffener |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07115224B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7175745B2 (en) | 2000-09-08 | 2007-02-13 | Asahi Kasei Chemicals Corporation | Method of manufacturing electrolyzer unit, and method and system for welding electrolyzer unit and electrolyzer unit rib |
| KR100960724B1 (en) * | 2007-10-09 | 2010-05-31 | 삼성중공업 주식회사 | Jig apparatus for preventing angular distortion at edge of main plate and operation method thereof |
| CN105234632A (en) * | 2015-10-12 | 2016-01-13 | 无锡曙光模具有限公司 | Base part production process and special production device |
-
1991
- 1991-03-15 JP JP5146191A patent/JPH07115224B2/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7175745B2 (en) | 2000-09-08 | 2007-02-13 | Asahi Kasei Chemicals Corporation | Method of manufacturing electrolyzer unit, and method and system for welding electrolyzer unit and electrolyzer unit rib |
| KR100960724B1 (en) * | 2007-10-09 | 2010-05-31 | 삼성중공업 주식회사 | Jig apparatus for preventing angular distortion at edge of main plate and operation method thereof |
| CN105234632A (en) * | 2015-10-12 | 2016-01-13 | 无锡曙光模具有限公司 | Base part production process and special production device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07115224B2 (en) | 1995-12-13 |
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