JP2001353595A - Supporting device for steel pipe on discharge side of welding equipment - Google Patents
Supporting device for steel pipe on discharge side of welding equipmentInfo
- Publication number
- JP2001353595A JP2001353595A JP2000174720A JP2000174720A JP2001353595A JP 2001353595 A JP2001353595 A JP 2001353595A JP 2000174720 A JP2000174720 A JP 2000174720A JP 2000174720 A JP2000174720 A JP 2000174720A JP 2001353595 A JP2001353595 A JP 2001353595A
- Authority
- JP
- Japan
- Prior art keywords
- steel pipe
- welding machine
- roller
- detection sensor
- passage
- 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.)
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- Arc Welding In General (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、溶接機の下流にお
ける鋼管の上下動を抑制し、スラグの破砕、剥離を確実
に行うことのできる鋼管支持装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a steel pipe supporting apparatus capable of suppressing the vertical movement of a steel pipe downstream of a welding machine and reliably performing crushing and peeling of slag.
【０００２】[0002]
【従来の技術】ＵＯＥ鋼管の外面溶接は、溶接開先を上
部にして溶接を行うが、溶接を終えて溶接機から出てく
る鋼管は、溶接熱により鋼管の上部が熱膨張して管長方
向に伸びるため、鋼管は先端部が下に曲がった状態で出
てくる。この曲がりは、搬送されている間に溶接部が冷
却されて、温度が低下してゆくにつれて直るが、溶接機
を出た先端部が下に曲がった状態の鋼管を矯正するよう
にすると、溶接開先のギャップが変わり、溶接部品質に
悪影響を与えることになる。2. Description of the Prior Art In UOE steel pipe outer surface welding, welding is performed with a welding groove at an upper part. However, a steel pipe coming out of a welding machine after welding has a problem that the upper part of the steel pipe thermally expands due to welding heat and the pipe length direction. The steel pipe comes out with the tip bent downward. This bend can be fixed as the temperature of the weld decreases as the weld cools while being conveyed. The gap of the groove changes, which adversely affects weld quality.
【０００３】この悪影響を防ぐため、溶接機の下流に配
設する搬送ローラは以下のような工夫を凝らしている。
これを図４により説明する。図において、１は鋼管、２
は溶接機、３は溶接機内支持ローラ、４は溶接機内押さ
えローラである。溶接機２の出口直後に、フラックス回
収装置（図示せず。）が設けられており、このフラック
ス回収装置の下流に、溶接ビードを覆って形成されたス
ラグの破砕・剥離手段５とこのスラグ破砕・剥離手段５
の下方（鋼管搬送レベル下）に破砕スラグの回収コンベ
ア７が設けられている。そして、スラグ破砕・剥離手段
５の下流に溶接鋼管１を搬送するために、一定間隔で上
下動可能な複数の搬送ローラ６ａ，６ｂ…が設けられて
いる。[0003] In order to prevent this adverse effect, the conveying rollers provided downstream of the welding machine are devised as follows.
This will be described with reference to FIG. In the figure, 1 is a steel pipe, 2
Denotes a welding machine, 3 denotes a support roller in the welding machine, and 4 denotes a holding roller in the welding machine. Immediately after the outlet of the welding machine 2, a flux collecting device (not shown) is provided. Downstream of the flux collecting device, a slag crushing / peeling means 5 formed over the welding bead and the slag crushing device are provided. -Peeling means 5
A crushed slag recovery conveyor 7 is provided below (below the steel pipe transport level). In order to transport the welded steel pipe 1 downstream of the slag crushing / peeling means 5, a plurality of transport rollers 6a, 6b...
【０００４】そして、鋼管１が先端から順次溶接されて
溶接機２から出てくると、前述した理由により鋼管１の
先端部が下に曲がった状態（例えば、４０６．４φの鋼
管の場合、溶接機２出口から約１２０００ｍｍのところ
で、鋼管１先端が２００ｍｍ下がる。）で搬送ローラ６
ａ，６ｂに向かって移動してくる。搬送ローラ６ａ，６
ｂのレベルを下げないと、鋼管１の先端が搬送ローラ６
ａ等に衝突するので、作業者が鋼管１先端の接近を確認
して、先ず、昇降装置を作動させて搬送ローラ６ａ等の
レベルを所定量降下させ、鋼管１先端を通過させ、その
後、作業者が搬送ローラ６ａ等のレベルを鋼管１の反り
量に合わせて所定量Δｈだけ上昇させ鋼管１を支持さ
せ、搬送している。また、図４に示すように、鋼管１の
後端が溶接機の機内支持ローラ３ａ（最下流に位置）を
通過すると、１ａのように鋼管１の後端が下がり、その
後、一定距離移動するうちに鋼管１の後端が上がり、１
ｂの状態になる。この場合、特に溶接機２に一番近い位
置にある搬送ローラ６ａのレベルの調整を誤り、鋼管１
下面との間に隙間が生じると、鋼管１が下流の搬送ロー
ラ６ｂを支点にしてその後端が大きく上下動しながら移
動するようになる。When the steel pipe 1 is sequentially welded from the tip and comes out of the welding machine 2, the tip of the steel pipe 1 is bent downward (for example, in the case of a 406.4 φ steel pipe, At about 12000 mm from the exit of the machine 2, the tip of the steel pipe 1 is lowered by 200 mm.)
It moves toward a and 6b. Transport rollers 6a, 6
If the level of b is not lowered, the tip of the steel pipe 1
a, the worker confirms the approach of the tip of the steel pipe 1, and first activates the elevating device to lower the level of the transport roller 6 a and the like by a predetermined amount, and passes the tip of the steel pipe 1. The worker raises the level of the transfer rollers 6a and the like by a predetermined amount Δh in accordance with the amount of warpage of the steel pipe 1 to support and transfer the steel pipe 1. Further, as shown in FIG. 4, when the rear end of the steel pipe 1 passes through the in-machine support roller 3a (the most downstream position) of the welding machine, the rear end of the steel pipe 1 is lowered as shown by 1a, and thereafter, moves a certain distance. The rear end of steel pipe 1 rises up
The state becomes b. In this case, in particular, the level of the conveying roller 6a closest to the welding machine 2 is incorrectly adjusted, and the steel pipe 1
When a gap is formed between the steel pipe 1 and the lower surface, the steel pipe 1 moves with its rear end largely moving up and down with the downstream conveying roller 6b as a fulcrum.
【０００５】[0005]
【発明が解決しようとする課題】ところで、上述したよ
うに溶接機２と下流の搬送ローラ６ａとの間に、スラグ
破砕・剥離手段５が設けられており、鋼管１の頂部に形
成されたスラグをスラグ割りローラ５ｂが押圧して破砕
・剥離させている。スラグ割りローラ５ｂは、後端を軸
５ｄに枢着させたアーム５ｃの先端に取付けてあるの
で、回動により一定距離上下動できるようになってい
る。As described above, the slag crushing / separating means 5 is provided between the welding machine 2 and the downstream conveying roller 6a, and the slag formed on the top of the steel pipe 1 is provided. Is pressed by a slag splitting roller 5b to be crushed and separated. Since the slug split roller 5b is attached to the tip of an arm 5c having a rear end pivotally connected to a shaft 5d, the slug split roller 5b can be moved up and down a fixed distance by rotation.
【０００６】しかし、上述のように、鋼管１は、スラグ
割りローラ５ｂの下を上下動しながら移動するから、鋼
管１の上下量がスラグ割りローラ５ｂの上下動許容範囲
内に在る場合は、スラグの破砕・剥離機能に支障をきた
すことは無いが、この許容範囲を超えると、スラグの破
砕・剥離が出来なくなるばかりでなく、破砕・剥離手段
５を破損させてしまう。上述のように、作業者が、下流
の搬送ローラ６ａ，６ｂ等のレベルを視覚に基づき手動
でその昇降装置を操作して調整しているため、この調整
量を誤って、破砕・剥離を不能にし、破損させることが
ある。However, as described above, since the steel pipe 1 moves while moving up and down under the slag splitting roller 5b, when the vertical amount of the steel pipe 1 is within the allowable vertical movement range of the slag splitting roller 5b. The slag crushing / peeling function is not hindered, but if the slag crushing / peeling function is exceeded, not only the slag crushing / peeling will not be possible but also the crushing / peeling means 5 will be damaged. As described above, the worker manually adjusts the level of the downstream conveying rollers 6a, 6b and the like by visually operating the lifting / lowering device. And may cause damage.
【０００７】本発明は、鋼管の曲がり、反りに応じて搬
送ローラのレベル調整を自動的に行うことにより、鋼管
の上下動を抑制し、鋼管のスラグの破砕・剥離を確実に
行うことのできる溶接機出側の鋼管支持装置を提供する
ことを目的とする。According to the present invention, the vertical movement of the steel pipe is suppressed by automatically adjusting the level of the conveying roller according to the bending or warpage of the steel pipe, so that the slag of the steel pipe can be reliably crushed and separated. An object of the present invention is to provide a steel pipe support device on the exit side of a welding machine.
【０００８】[0008]
【課題を解決するための手段】本発明は上記の目的を以
下の装置によって達成する。請求項１の装置は、溶接鋼
管の溶接部に形成されるスラグを除去するスラグ破砕・
剥離手段を有する溶接機下流の鋼管支持装置において、
溶接機出口と溶接機に最も近い位置の搬送ローラとの間
に、鋼管の通過を検出する通過検出センサーを設け、各
搬送ローラの軸端にローラ回転検出センサーを取付け、
前記通過検出センサーとローラ回転検出センサーの検出
情報に基づいて各搬送ローラの高さレベルを制御するよ
うにした溶接機出側の鋼管支持装置である。According to the present invention, the above object is achieved by the following apparatus. The slag crushing device for removing slag formed in a welded portion of a welded steel pipe is provided.
In a steel pipe support device downstream of a welding machine having a peeling means,
Between the welding machine exit and the transport roller closest to the welder, a passage detection sensor that detects the passage of the steel pipe is provided, and a roller rotation detection sensor is attached to the shaft end of each transport roller,
A steel pipe support device on the exit side of the welding machine, wherein a height level of each transport roller is controlled based on detection information of the passage detection sensor and the roller rotation detection sensor.
【０００９】請求項２の装置は、溶接機出口と溶接機に
最も近い位置の搬送ローラとの間に設けた鋼管の通過を
検出する通過検出センサーと、溶接機下流の各搬送ロー
ラの軸端に取り付けたローラ回転検出センサーと、前記
鋼管の通過を検出する通過検出センサーとローラ回転検
出センサーの検出情報を処理して指令信号を発する演算
器と、該演算器の指令により各搬送ローラの高さレベル
を制御する制御器とからなる溶接機出側の鋼管支持装置
である。According to a second aspect of the present invention, there is provided a passage detecting sensor for detecting passage of a steel pipe provided between a welding machine outlet and a conveying roller closest to the welding machine, and a shaft end of each conveying roller downstream of the welding machine. A roller rotation detection sensor attached to the steel pipe, a computing unit that processes detection information of the passage detection sensor and the roller rotation detection sensor that detects passage of the steel pipe and issues a command signal, and a height of each transport roller according to a command from the computing unit. And a controller for controlling the level of the steel pipe.
【００１０】上記の装置は、鋼管の通過を検出する通過
検出センサーと各搬送ローラの軸端に取り付けたローラ
回転検出センサーを備えているから、各搬送ローラレベ
ルが、搬送されている鋼管の曲がり変形に合わせて制御
されるので、搬送ローラによって鋼管が安定して支持さ
れる。この結果、鋼管後端の大きな上下動が無くなり、
スラグ破砕・剥離手段５によりスラグが確実に破砕・剥
離される。[0010] Since the above-mentioned apparatus is provided with a passage detecting sensor for detecting the passage of the steel pipe and a roller rotation detecting sensor attached to the shaft end of each conveying roller, each conveying roller level adjusts the bending of the steel pipe being conveyed. Since the steel pipe is controlled in accordance with the deformation, the steel pipe is stably supported by the transport roller. As a result, the large vertical movement of the rear end of the steel pipe disappears,
The slag is reliably crushed and separated by the slag crushing and separating means 5.
【００１１】[0011]
【発明の実施の形態】本発明の実施の形態を図面に基づ
いて以下に説明する。図１は、本発明装置の取り付け位
置を示す溶接機出側の側面図、図２は、本発明に係る鋼
管通過センサーおよびローラ回転検出センサーを示す正
面図、図３は、本発明に係る通過検出センサーおよびロ
ーラ回転検出センサーを示す側面図である。Embodiments of the present invention will be described below with reference to the drawings. 1 is a side view of a welding machine exit side showing a mounting position of the apparatus of the present invention, FIG. 2 is a front view showing a steel pipe passage sensor and a roller rotation detection sensor according to the invention, and FIG. It is a side view which shows a detection sensor and a roller rotation detection sensor.
【００１２】図において、１は鋼管、２は溶接機、３は
溶接機内支持ローラ、４は溶接機内押さえローラ、５は
スラグの破砕・剥離手段である。溶接機２出口と溶接機
２に最も近い位置にある搬送ローラ６ａとの間に、鋼管
１の通過を検出する通過検出センサー１０ａ，１０ｂが
設けてある。通過検出センサーの方式としては、光式、
レーザー式、超音波式等のセンサーが採用できるが、こ
こでは光式を示しており、１０ａが投光器、１０ｂが光
電管である。In the figure, 1 is a steel pipe, 2 is a welding machine, 3 is a supporting roller in the welding machine, 4 is a pressing roller in the welding machine, and 5 is a slag crushing / peeling means. Passage detection sensors 10a and 10b for detecting passage of the steel pipe 1 are provided between the outlet of the welding machine 2 and the transport roller 6a located closest to the welding machine 2. As a method of the passage detection sensor, optical type,
A laser type, an ultrasonic type or the like sensor can be adopted. Here, an optical type is shown, and 10a is a light projector and 10b is a photoelectric tube.
【００１３】また、搬送ローラ６ａ，６ｂ…のそれぞれ
の一方軸端に、ローラ回転検出センサー１１ａ，１１ａ
…が取付けてあり、搬送ローラ６ａ，６ａ…の回転を検
出する。ローラ回転検出センサーとしては、渦電流式回
転計、発電式回転計、共振式回転形等を使用することが
できる。Each of the conveying rollers 6a, 6b,... Has a roller rotation detecting sensor 11a, 11a
Are attached, and the rotation of the transport rollers 6a is detected. As the roller rotation detecting sensor, an eddy current type tachometer, a power generation type tachometer, a resonance type tachometer or the like can be used.
【００１４】次に、搬送ローラ６ａ，６ｂ…レベル制御
について説明する。溶接開始前において、溶接機２の下
流にある搬送ローラ６ａ，６ｂ…は、溶接鋼管１の先端
（溶接熱により下方に曲がった状態にある。）が、通過
するレベルより若干低い位置（初期レベルと呼称す
る。）に下降した状態にしてある。搬送ローラのレベル
をこの高さにしておけば、曲がり状態の鋼管先端と搬送
ローラとの衝突が避けられる。Next, the level control of the conveying rollers 6a, 6b... Will be described. Before the start of welding, the transport rollers 6a, 6b,... Located downstream of the welding machine 2 are located at a position (initial level) at which the tip of the welded steel pipe 1 (which is bent downward by welding heat) is slightly lower than the passing level. ). If the level of the transport roller is set to this height, collision between the tip of the bent steel pipe and the transport roller can be avoided.
【００１５】なお、溶接鋼管１の先端の曲げ下がり量
は、鋼管の呼称径、肉厚および長さによって異なるの
で、前記初期レベルは、鋼管の呼称径、肉厚および長さ
によって変更する。ここに、曲げ下がり量とは、曲がり
変形の無い真っ直ぐな鋼管先端の最下部レベルと溶接熱
による曲げ変形した鋼管先端の最下部レベルとの差をい
う。Since the amount of bending at the tip of the welded steel pipe 1 varies depending on the nominal diameter, wall thickness and length of the steel pipe, the initial level is changed depending on the nominal diameter, wall thickness and length of the steel pipe. Here, the amount of bending down refers to the difference between the lowest level of a straight steel pipe tip without bending deformation and the lowest level of a steel pipe tip bent and deformed by welding heat.
【００１６】鋼管１の先端の通過を通過検出センサー
１０ａ，１０ｂが検出したら、信号を演算器１２に送信
し、演算器１２は、通過した時刻、溶接速度（鋼管の移
送速度）および鋼管のサイズ、肉厚と鋼管先端の曲がり
変形データに基づき、鋼管先端の曲がり変形後の高さレ
ベルと鋼管先端の到達時刻が演算される。各搬送ロー
ラに、演算器１２から鋼管先端のレベルと鋼管先端到達
時刻が各搬送ローラの制御器１３ａ1，１３ａ2…に送信
される。の情報により、各搬送ローラレベルが前記
鋼管到達時刻より所定時間早い時刻に、鋼管先端が衝突
しない初期レベルに調整される。鋼管先端通過後にお
いては、各搬送ローラ６ａ，６ｂ…のレベルは、各搬送
ローラの回転検出センサー１１ａ、１１ｂ…が回転を検
出しない間上昇し、回転が検出されると昇降停止され、
搬送ローラが鋼管を常に支持するよう制御される。When the passage detecting sensors 10a and 10b detect the passage of the tip of the steel pipe 1, a signal is transmitted to the calculator 12, and the calculator 12 transmits the signal, the welding time (the transfer speed of the steel pipe) and the size of the steel pipe. The height level of the steel pipe tip after bending deformation and the arrival time of the steel pipe tip are calculated based on the wall thickness and the bending deformation data of the steel pipe tip. The level of the tip of the steel pipe and the arrival time of the tip of the steel pipe are transmitted from the calculator 12 to the controllers 13a 1 , 13a 2 . Is adjusted to an initial level at which the tip of the steel pipe does not collide at a time earlier than the arrival time of the steel pipe by a predetermined time. After passing through the tip of the steel pipe, the level of each of the transport rollers 6a, 6b... Rises while the rotation detection sensors 11a, 11b.
The transport roller is controlled to always support the steel pipe.
【００１７】このように、各搬送ローラ６ａ，６ｂ…の
レベルが、搬送されている鋼管の曲がり変形に合わせて
制御されるので、搬送ローラにより鋼管が安定して支持
される。この結果、鋼管後端の大きな上下動が無くな
り、スラグ破砕・剥離手段５によりスラグが確実に破砕
・剥離される。As described above, since the level of each of the transport rollers 6a, 6b,... Is controlled in accordance with the bending deformation of the steel pipe being transported, the steel pipe is stably supported by the transport rollers. As a result, a large vertical movement of the rear end of the steel pipe is eliminated, and the slag is reliably crushed and separated by the slag crushing and separating means 5.
【００１８】[0018]
【発明の効果】本発明装置は、鋼管の通過を検出する通
過検出センサーと各搬送ローラの軸端に取り付けたロー
ラ回転検出センサーを備えているから、各搬送ローラレ
ベルが、搬送されている鋼管の曲がり変形に合わせて制
御されるので、搬送ローラによって鋼管が安定して支持
される。この結果、鋼管後端の大きな上下動が無くな
り、スラグ破砕・剥離手段５によりスラグが確実に破砕
・剥離される。The apparatus of the present invention includes a passage detecting sensor for detecting passage of a steel pipe and a roller rotation detecting sensor attached to the shaft end of each conveying roller. The steel pipe is stably supported by the transport rollers. As a result, a large vertical movement of the rear end of the steel pipe is eliminated, and the slag is reliably crushed and separated by the slag crushing and separating means 5.
【図１】本発明装置の取り付け位置を示す溶接機出側の
側面図である。FIG. 1 is a side view of a welding machine exit side showing a mounting position of a device of the present invention.
【図２】本発明に係る鋼管通過センサーおよびローラ回
転検出センサーを示す正面図である。FIG. 2 is a front view showing a steel pipe passage sensor and a roller rotation detection sensor according to the present invention.
【図３】本発明に係る通過検出センサーおよびローラ回
転検出センサーを示す側面図である。FIG. 3 is a side view showing a passage detection sensor and a roller rotation detection sensor according to the present invention.
【図４】従来の搬送ローラ支持方法の場合の鋼管後端の
上下動状態を説明する側面図である。FIG. 4 is a side view for explaining a vertical movement state of a rear end of a steel pipe in a case of a conventional conveying roller supporting method.
１ 鋼管 ２ 溶接機 ３ 溶接機内支持ローラ ４ 溶接機内押さえローラ ５ スラグ破砕・剥離手段 ５ａ スラグ割りローラ ６ａ，６ｂ 搬送ローラ １０ａ、１０ｂ 通過検出センサー １１ａ，１１ｂ ローラ回転検出センサー １２ 演算器 １３ａ、１３ｂ 制御器 DESCRIPTION OF SYMBOLS 1 Steel pipe 2 Welding machine 3 Welding machine supporting roller 4 Welding machine holding roller 5 Slag crushing / peeling means 5a Slag splitting roller 6a, 6b Conveying roller 10a, 10b Passage detection sensor 11a, 11b Roller rotation detection sensor 12 Computing unit 13a, 13b Control vessel
Claims (2)
去するスラグ破砕・剥離手段を有する溶接機下流の鋼管
支持装置において、溶接機出口と溶接機に最も近い位置
の搬送ローラとの間に、鋼管の通過を検出する通過検出
センサーを設け、各搬送ローラの軸端にローラ回転検出
センサーを取付け、前記通過検出センサーとローラ回転
検出センサーの検出情報に基づいて各搬送ローラの高さ
レベルを制御するようにしたことを特徴とする溶接機出
側の鋼管支持装置。In a steel pipe supporting apparatus downstream of a welding machine having a slag crushing / separating means for removing slag formed in a welded portion of a welded steel pipe, between a welding machine outlet and a conveying roller closest to the welding machine. A passage detection sensor for detecting the passage of the steel pipe, a roller rotation detection sensor attached to the shaft end of each conveyance roller, and a height level of each conveyance roller based on the detection information of the passage detection sensor and the roller rotation detection sensor. The steel pipe support device on the exit side of the welding machine, characterized in that it is controlled.
ローラとの間に設けた鋼管の通過を検出する通過検出セ
ンサーと、溶接機下流の各搬送ローラの軸端に取り付け
たローラ回転検出センサーと、前記鋼管の通過を検出す
る通過検出センサーとローラ回転検出センサーの検出情
報を処理して指令信号を発する演算器と、該演算器の指
令により各搬送ローラの高さレベルを制御する制御器と
からなる溶接機出側の鋼管支持装置。2. A passage detection sensor for detecting passage of a steel pipe provided between a welding machine outlet and a conveying roller closest to the welding machine, and a roller rotation attached to a shaft end of each conveying roller downstream of the welding machine. A detection sensor, an arithmetic unit for processing detection information from the passage detection sensor and the roller rotation detection sensor for detecting the passage of the steel pipe and issuing a command signal, and controlling a height level of each transport roller according to a command from the arithmetic unit. A steel pipe support device on the outlet side of the welding machine, comprising a controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000174720A JP2001353595A (en) | 2000-06-12 | 2000-06-12 | Supporting device for steel pipe on discharge side of welding equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000174720A JP2001353595A (en) | 2000-06-12 | 2000-06-12 | Supporting device for steel pipe on discharge side of welding equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001353595A true JP2001353595A (en) | 2001-12-25 |
Family
ID=18676706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000174720A Pending JP2001353595A (en) | 2000-06-12 | 2000-06-12 | Supporting device for steel pipe on discharge side of welding equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001353595A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104002065A (en) * | 2013-12-21 | 2014-08-27 | 柳州市超凌顺机械制造有限公司 | Welding error-proof control device |
| JP2015134366A (en) * | 2014-01-17 | 2015-07-27 | Ｊｆｅスチール株式会社 | Process and apparatus for controlling height of transport device on outlet side of welder |
| CN113319522A (en) * | 2021-06-21 | 2021-08-31 | 江苏新宏大集团有限公司 | Automatic post-welding treatment equipment for welding of chemical pipeline mounting flange plate |
| CN116604203A (en) * | 2023-07-14 | 2023-08-18 | 沈阳机车车辆装备制造有限公司 | Auxiliary fixture for ultra-long piece of laser cutting pipe |
-
2000
- 2000-06-12 JP JP2000174720A patent/JP2001353595A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104002065A (en) * | 2013-12-21 | 2014-08-27 | 柳州市超凌顺机械制造有限公司 | Welding error-proof control device |
| JP2015134366A (en) * | 2014-01-17 | 2015-07-27 | Ｊｆｅスチール株式会社 | Process and apparatus for controlling height of transport device on outlet side of welder |
| CN113319522A (en) * | 2021-06-21 | 2021-08-31 | 江苏新宏大集团有限公司 | Automatic post-welding treatment equipment for welding of chemical pipeline mounting flange plate |
| CN116604203A (en) * | 2023-07-14 | 2023-08-18 | 沈阳机车车辆装备制造有限公司 | Auxiliary fixture for ultra-long piece of laser cutting pipe |
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