JPH0491892A - Centering device for pipe - Google Patents
Centering device for pipeInfo
- Publication number
- JPH0491892A JPH0491892A JP20526590A JP20526590A JPH0491892A JP H0491892 A JPH0491892 A JP H0491892A JP 20526590 A JP20526590 A JP 20526590A JP 20526590 A JP20526590 A JP 20526590A JP H0491892 A JPH0491892 A JP H0491892A
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- tube
- welding
- rod
- centering device
- 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.)
- Pending
Links
- 238000003466 welding Methods 0.000 claims abstract description 31
- 239000002184 metal Substances 0.000 claims description 14
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 5
- 239000011324 bead Substances 0.000 abstract description 3
- 210000001503 joint Anatomy 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
Description
【発明の詳細な説明】
ｒ産業上の利用分野］
本発明は、管を突合わせ円周溶接する際に用いられ、突
合わせ溶接される管の管端相互の中心を−・致さゼる管
芯出し装置に関する。この装置は裏波溶接の真当金を保
持する装置としても用いられる。[Detailed description of the invention] r Industrial application field] The present invention is used when butt welding pipes and circumferentially welding the ends of the pipes to be butt welded. This invention relates to a tube centering device. This device is also used as a device to hold the true metal for Uranami welding.
［従来の技術］
管を突合オ）セ円周溶接する場合１両方の門の中心を合
わせて溶接する必要がある。このような管芯出し装置は
特開貼５５−９４７９５号グ、報、特開昭５３−７６１
．６０号公報にすらｊるように、管内部１に挿入したハ
ウジングから、分割型ヂャ〉バを押し広げる方式が一舷
に使用されている。このようなブフ式の管芯出し装置は
、縮小寸法と拡大−・１法との差が小さく１つの装置が
適用できる管の直径が限定されるため、種々の管の内径
に合わせたＨ９種類の同装置を保有しなければならない
欠点がある。[Prior Art] When pipes are butt-circumferentially welded, it is necessary to weld the centers of both gates aligned. Such a tube centering device is disclosed in Japanese Patent Application Laid-open No. 55-94795 and Japanese Patent Application Laid-open No. 53-761.
．． As shown in Japanese Patent No. 60, a method is generally used in which a split-type bellows is pushed out from a housing inserted into the tube interior 1. Such Buch-type tube centering devices are available in H9 types to suit the inner diameters of various tubes because the difference between the reduced dimension and the enlarged 1 method is small and the diameter of the tube to which one device can be applied is limited. The disadvantage is that the same equipment must be kept in stock.
［発明が解決しようとする課題１
本発明は上記欠点を解消した管芯出し装置を提供するこ
とを目的とするものである。[Problem to be Solved by the Invention 1] An object of the present invention is to provide a tube centering device that eliminates the above-mentioned drawbacks.
〔課題を解決するための手段ｊ
本発明は鋼管内の一つの直径に沿う半径方向に伸縮自在
な１対の棒状体と、この棒状体を伸縮させる装置と、こ
の棒状体の先端に管軸方向２位置に１設された同形の管
内面周方向走行ローラと、少なくとも一方の棒状体先端
の前記２位置のローラ間の位置に配設した裏当金と、管
の円周自動溶接機の溶接ヘッドと同期してｉｉｉ記一対
の棒状体を回転させるコントローラとを備＾たことを特
徴とする管芯出し装置である。[Means for Solving the Problems j] The present invention includes a pair of rod-like bodies that are expandable and contractible in the radial direction along one diameter within a steel pipe, a device that expands and contracts the rod-like bodies, and a tube shaft attached to the tip of the rod-like body. A roller of the same shape that runs in the circumferential direction of the inner surface of the tube installed at two positions in the direction, a backing metal installed at a position between the rollers at the two positions at the tip of at least one rod-shaped body, and an automatic circumferential welding machine for the tube. This tube centering device is characterized in that it is equipped with a controller that rotates the pair of rod-shaped bodies described in (iii) in synchronization with the welding head.
〔作用ｊ
本発明の管芯出し装置は、管の突合円周溶接の自動溶接
トーチと同期して回転する一対の伸縮自在な棒状体を管
内に配設し、その両端に管内壁押えローラ及び裏当金を
設けた管芯出し装置とすることで、寸法の異なる多くの
管径に広く適用することができる。[Operation J] The tube centering device of the present invention includes a pair of telescopic rod-like bodies that rotate in synchronization with an automatic welding torch for butt circumferential welding of tubes, and a pair of telescopic rod-like bodies that rotate in synchronization with an automatic welding torch for butt circumferential welding of tubes, and a tube inner wall pressing roller and a tube inner wall pressing roller at both ends. By providing a tube centering device with a backing metal, it can be widely applied to many tube diameters with different dimensions.
［実施例１
第１図に本発明に係る管芯出し装置１の主要部を示した
。この装置は中心のホルダ２かも背中合わせに半径方向
に延出する２個のシリンダ３を備え、このシリンダ３内
を摺動するピストン４により管２０．２１の突合わせ継
目部内径にローラ６を押しつける２本のピストンロッド
５を有している。この２本のピストンロッド５は対向す
る半径方向に伸縮する棒状体を形成している。Ｄ−ラ６
は、管内径に沿う複数個があり、管長下一方向にもｗｊ
数列が同形に配設されている。これらのローラ６はピス
トンロッド５を半径方向外側に延出させることによって
、突合わせする２本の管２０．２］の内径に当接し両方
の管の芯出しを１１つ。また溶接部の裏当金８が少なく
とも一方のピストンロッド５の頭部のローラ６の間に設
けられている。[Example 1] Fig. 1 shows the main parts of a tube centering device 1 according to the present invention. The device comprises a central holder 2 as well as two cylinders 3 extending radially back to back, in which a piston 4 sliding presses a roller 6 against the inner diameter of the butt joint of the tube 20.21. It has two piston rods 5. These two piston rods 5 form rod-shaped bodies that extend and contract in opposing radial directions. D-ra 6
There are multiple pieces along the inner diameter of the pipe, and there are also wj in one direction down the pipe length.
The sequences of numbers are arranged in the same shape. By extending the piston rod 5 radially outward, these rollers 6 come into contact with the inner diameters of the two pipes 20.2 to be abutted and center both pipes. A weld backing 8 is also provided between the rollers 6 on the head of at least one of the piston rods 5.
また、棒状体は管内でローラ６によって自転する。モー
タ１４は、この棒状体を回転させるものでハウジング１
１に支持されている。ハウジング１１は脚１２、伸縮腕
１３により管内に走行自在に内挿され、モータ１４の中
心を管中心に一致させる。Further, the rod-shaped body is rotated by rollers 6 within the tube. The motor 14 rotates this rod-shaped body and is connected to the housing 1.
1 is supported. The housing 11 is movably inserted into the tube by legs 12 and telescopic arms 13, and the center of the motor 14 is aligned with the center of the tube.
第２図に示すように、管２１の外径に、突合わせ溶接す
る溶接ヘッド３１が取リーフけられ、トーチ３２が溶接
を行う。管２０．２１の突合溶接部の内径に装着された
管芯出し装置１はＴ］ントローラ３４によって制御され
、トーチ３２と同期回転し、裏当金８（第１図）が−層
目の溶接金属を受けて良好な裏波ビードを形成する。As shown in FIG. 2, a welding head 31 for butt welding is removed on the outer diameter of the tube 21, and a torch 32 performs the welding. The tube centering device 1 attached to the inner diameter of the butt weld of the tubes 20 and 21 is controlled by a controller 34 and rotates synchronously with the torch 32, so that the backing metal 8 (Fig. 1) welds the -th layer. It catches the metal and forms a good Uranami bead.
本発明装置の使用方法は次の通りである。The method of using the device of the present invention is as follows.
第１図において、管内に管芯出し装置１を挿入し、管端
（開先）に裏当金の幅中心を合わせてハウジング１１を
管２０内に固定する。次に管２０の管端を管２１に合わ
せ、ピストンロッド５を押し出す。この時管内面にロー
ラ６を押し付ζブる押付力は管厚、管材質にあわせて設
定する。また、裏当金８は管２０．２１内面をこすらな
いようにローラ６外周の面より多少下げておく。裏当金
８は必要により水冷する。In FIG. 1, the tube centering device 1 is inserted into the tube, and the housing 11 is fixed in the tube 20 with the width center of the backing metal aligned with the tube end (bevel). Next, the end of the tube 20 is aligned with the tube 21, and the piston rod 5 is pushed out. At this time, the pressing force with which the roller 6 is pressed against the inner surface of the tube is set in accordance with the tube thickness and tube material. Further, the backing metal 8 is placed slightly lower than the outer surface of the roller 6 so as not to rub the inner surface of the tube 20,21. The backing metal 8 is cooled with water if necessary.
第２図において、溶接開始と共に溶接ヘッド３１が走行
する。この溶接ヘッド走行速度は一定速度ではない、溶
接ヘッド３】の位置をエンコーダで検出し、その移動速
度に合わせて裏当金８を移動させる。このような溶接ヘ
ッドの移動と裏当金の移動を同調制御する技術は公知で
あり、コントローラ３４を用いて制御する。回転モータ
１４は正確に同調させるため電動モータとするのが望ま
しい。In FIG. 2, the welding head 31 moves when welding starts. The welding head traveling speed is not constant; the position of the welding head 3 is detected by an encoder, and the backing metal 8 is moved in accordance with the moving speed. The technique of synchronizing the movement of the welding head and the backing metal is well known, and is controlled using the controller 34. Rotary motor 14 is preferably an electric motor for precise synchronization.
［発明の効果１
本発明の管芯出し装置は、管の円周自動溶接機の溶接ヘ
ッドと同期して回転する伸縮自在な棒状体の両端に、管
内壁押えローラ及び少なくともその一方に裏当金を設け
た管芯出し装置としたから、伸縮ストロークが大きく、
多種の異なる内径の管に適用することができ、容易に芯
出しを行うことができると共に、裏当金として作動し、
裏波ビードのすぐれた突合せ溶接を行うことができ。[Effects of the Invention 1] The tube centering device of the present invention includes a tube inner wall pressing roller and at least one of the rollers at both ends of a telescopic rod-shaped body that rotates in synchronization with the welding head of an automatic pipe circumference welding machine. Since the tube centering device is equipped with metal, the expansion and contraction stroke is large.
It can be applied to a wide variety of pipes with different inner diameters, allows easy centering, and acts as a backing metal.
Able to perform excellent butt welding of Uranami beads.
管路の溶接接合の品質１作業能率の向９Ｆに寄与すると
ころが大である。The quality of pipe welded joints greatly contributes to the improvement of work efficiency.
第１図は本発明装置の実施例を示し、第１図（ａ）は側
面図、第１図（ｂ）は正面図、第２図は溶接装置との連
動装置のブロック図である。
■・・・管芯出し装置 ２・−・ホルダ３・・・シ
リンダ ４・・・ピストン５・・・ピストンロ
ッド ６・・・ローラ８・・・裏当金 Ｌ
ｌ・・・ハウジングＩ２−・・脚
Ｉ４・・・モータ
３１・・・溶接ヘッド
３３・・・溶接電源
出 願 人
」
代
理
人
１３・・・伸縮腕
２０、２ ｌ・・・管
３２・・・トーチ
３４・・・コントロ
崎製
鉄
株
式1 shows an embodiment of the apparatus of the present invention, FIG. 1(a) is a side view, FIG. 1(b) is a front view, and FIG. 2 is a block diagram of an interlocking device with a welding device. ■...Pipe centering device 2...Holder 3...Cylinder 4...Piston 5...Piston rod 6...Roller 8...Backing metal L
l...Housing I2-...Leg I4...Motor 31...Welding head 33...Welding power supply applicant' Agent 13...Extendable arms 20, 2 l...Pipe 32...・Torch 34...Kontrosaki Steel Co., Ltd.
Claims (1)
対の棒状体と、該棒状体を伸縮させる装置と、該棒状体
の先端に管軸方向２位置に配設された同形の管内面周方
向走行ローラと、少なくとも一方の棒状体先端の該２位
置のローラ間の位置に配設した裏当金と、管の円周自動
溶接機の溶接ヘッドと同期して該一対の棒状体を回転さ
せるコントローラとを備えたことを特徴とする管芯出し
装置。1 radially expandable along one diameter within the steel pipe 1
A pair of rod-shaped bodies, a device for expanding and contracting the rod-shaped bodies, rollers running in the circumferential direction of the tube inner surface of the same shape disposed at two positions in the tube axis direction at the tip of the rod-shaped bodies, and two rollers at the tip of at least one of the rod-shaped bodies. A pipe centering device comprising: a backing metal disposed between rollers; and a controller that rotates the pair of rod-like bodies in synchronization with a welding head of an automatic pipe circumference welding machine. Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20526590A JPH0491892A (en) | 1990-08-03 | 1990-08-03 | Centering device for pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20526590A JPH0491892A (en) | 1990-08-03 | 1990-08-03 | Centering device for pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0491892A true JPH0491892A (en) | 1992-03-25 |
Family
ID=16504121
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20526590A Pending JPH0491892A (en) | 1990-08-03 | 1990-08-03 | Centering device for pipe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0491892A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100739101B1 (en) * | 2006-12-20 | 2007-07-12 | 웰텍 주식회사 | Butt welding device of pipes |
| KR100739104B1 (en) * | 2006-12-20 | 2007-07-12 | 웰텍 주식회사 | Automatic tig-welding device and its welding method for constructing on field |
| KR100739109B1 (en) * | 2006-12-20 | 2007-07-12 | 웰텍 주식회사 | Automatic tig-welding device of pipes |
| CN106624521A (en) * | 2017-01-23 | 2017-05-10 | 哈尔滨科能熔敷科技有限公司 | Temperature control water-cooled thin wall circular pipe depositing device |
-
1990
- 1990-08-03 JP JP20526590A patent/JPH0491892A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100739101B1 (en) * | 2006-12-20 | 2007-07-12 | 웰텍 주식회사 | Butt welding device of pipes |
| KR100739104B1 (en) * | 2006-12-20 | 2007-07-12 | 웰텍 주식회사 | Automatic tig-welding device and its welding method for constructing on field |
| KR100739109B1 (en) * | 2006-12-20 | 2007-07-12 | 웰텍 주식회사 | Automatic tig-welding device of pipes |
| CN106624521A (en) * | 2017-01-23 | 2017-05-10 | 哈尔滨科能熔敷科技有限公司 | Temperature control water-cooled thin wall circular pipe depositing device |
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