JP2003191077A - Pipe cutting machine - Google Patents

Pipe cutting machine

Info

Publication number
JP2003191077A
JP2003191077A JP2001392158A JP2001392158A JP2003191077A JP 2003191077 A JP2003191077 A JP 2003191077A JP 2001392158 A JP2001392158 A JP 2001392158A JP 2001392158 A JP2001392158 A JP 2001392158A JP 2003191077 A JP2003191077 A JP 2003191077A
Authority
JP
Japan
Prior art keywords
pipe
cutting machine
frame
body frame
main body
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
Application number
JP2001392158A
Other languages
Japanese (ja)
Inventor
Masatoshi Onishi
正捷 大西
Kazuhiko Shigeoka
和彦 重岡
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
STAINLESS PIPE KOGYO KK
Original Assignee
STAINLESS PIPE KOGYO KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by STAINLESS PIPE KOGYO KK filed Critical STAINLESS PIPE KOGYO KK
Priority to JP2001392158A priority Critical patent/JP2003191077A/en
Publication of JP2003191077A publication Critical patent/JP2003191077A/en
Pending legal-status Critical Current

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Abstract

<P>PROBLEM TO BE SOLVED: To provide a pipe cutting machine which accurately, quickly, and cleanly cuts a large-diameter pipe that continuously flows out from a pipe making machine or the like. <P>SOLUTION: On the body frame 2 having a pipe inserting part and wheels, installed are a chucking device 3 for fixing a pipe P on the body frame and a rotary frame 4, with a torch 6a of a plasma cutter 6 attached to the end face of the rotary frame 4 via a profiling device 8. The pipe P put through the rotary frame 4 and fixed on the body frame 2 is cut by a high temperature plasma flow injected from the torch 6a while the rotary frame 4 is rotated. <P>COPYRIGHT: (C)2003,JPO

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【発明の属する技術分野】この発明は、コンパクトな装
置で大径パイプの切断を迅速かつ正確に行うことを可能
ならしめたパイプ切断機に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pipe cutting machine capable of quickly and accurately cutting a large-diameter pipe with a compact device.

【0002】[0002]

【従来の技術】パイプ切断機は、砥石切断機、丸鋸切断
機、帯鋸切断機が主流をなしている。このほかにガス切
断機もある。
2. Description of the Related Art As a pipe cutting machine, a grindstone cutting machine, a circular saw cutting machine and a band saw cutting machine are mainly used. There is also a gas cutting machine.

【0003】[0003]

【発明が解決しようとする課題】砥石切断機や丸鋸切断
機は、切断可能なパイプ径が切断砥石やブレードの直径
の1/2以下となり、大径パイプの切断には向いていな
い。大径ブレードを用いた丸鋸切断機も一部で使用され
ているが、これは大型化が避けられない。
DISCLOSURE OF INVENTION Problems to be Solved by the Invention A grindstone cutting machine and a circular saw cutting machine are not suitable for cutting a large-diameter pipe because the diameter of a pipe that can be cut is less than half the diameter of a cutting grindstone or a blade. A circular saw cutting machine using a large-diameter blade is also used in some parts, but it is unavoidable that the size increases.

【0004】帯鋸切断機も、パイプを跨ぎきるフレーム
が必要であるので大径パイプ切断用のものは大型化す
る。
Since the band saw cutting machine also needs a frame that straddles the pipes, a large-sized one for cutting a large-diameter pipe is enlarged.

【0005】素材プレートを連続的に流しながら造管機
で幅方向に丸め、両側縁の突き合わせ部を溶接して作ら
れる溶接パイプなどは、完成して流れ出てくるパイプを
流れに追従しながら定尺に切断する必要があり、この追
従式の切断機は特に、大型のものは敬遠される。
Welded pipes, etc. made by rolling the raw material plate continuously in the width direction with a pipe making machine and welding the abutting portions of both side edges are fixed while following the flow of the completed pipe. It is necessary to cut to a long length, and this follow-up type cutting machine is especially shunned for large ones.

【0006】ガス切断機の中には、内側にパイプを通す
回転枠に吹管を取付け、回転枠を回転させながら火口か
ら吹き出した炎とガスでパイプを溶断していく専用のパ
イプ切断機があるが、このガス切断機は危険なガスを取
扱う必要があり、また、溶けた金属のスラグが切り口部
から吹き出すため、作業場の安全確保に問題がある。
[0006] Among gas cutting machines, there is a dedicated pipe cutting machine in which a blow pipe is attached to a rotary frame through which a pipe is inserted, and the pipe is melted by flame and gas blown from a crater while rotating the rotary frame. However, this gas cutting machine needs to handle dangerous gas, and the molten metal slag is blown out from the cut portion, so there is a problem in ensuring the safety of the workplace.

【0007】また、切断幅が大きく、切り口もきれいに
仕上がらない。さらに、移動中のパイプ切断では、パイ
プの移動速度が速くなるほど切断機の追従距離が大きく
なるため、ガスホースを追従させる大がかりな付帯設備
も必要になり、設備スペースが非常に大きくなってしま
う。
Further, the cutting width is large and the cut end cannot be finished neatly. Further, in the case of cutting a pipe during movement, as the moving speed of the pipe becomes faster, the following distance of the cutting machine becomes larger, so that a large-scale auxiliary equipment for following the gas hose is also required, and the equipment space becomes very large.

【0008】この発明は、これ等の不具合を無くし、コ
ンパクトな切断機で大径パイプの切断を迅速かつ正確に
行えるようにすることを課題としている。
An object of the present invention is to eliminate these problems and to enable a compact cutting machine to quickly and accurately cut a large-diameter pipe.

【0009】[0009]

【課題を解決するための手段】上記の課題を解決するた
め、この発明においては、パイプ挿通部を有する本体フ
レーム、パイプ挿通部に挿入した被切断パイプを本体フ
レームに固定するチャッキング装置、中心穴をパイプ挿
通部の延長上に配置して本体フレームの片端に定位置回
転可能に取り付ける回転駆動機構を備えた回転枠、本体
フレームに備えさせるプラズマ切断機、この切断機のト
ーチを保持するトーチホルダ、及びそのトーチホルダを
回転枠の径方向に進退可能に支え、トーチホルダに取り
付けた倣いローラを被切断パイプの外面に押し当てる倣
い装置を有し、前記回転枠の端面に前記倣い装置を取付
け、回転枠の中心穴に通して本体フレームに固定した被
切断パイプを、回転枠を回転させてプラズマ切断機で切
断するようにしたパイプ切断機を提供する。
In order to solve the above problems, in the present invention, a main body frame having a pipe insertion portion, a chucking device for fixing a pipe to be cut inserted in the pipe insertion portion to the main body frame, a center A rotary frame equipped with a rotation drive mechanism that is installed on the extension of the pipe insertion part and attached to one end of the main body frame so that it can rotate in a fixed position, a plasma cutting machine equipped on the main body frame, a torch holder that holds the torch of this cutting machine , And a torch holder supporting the torch holder so that they can move forward and backward in the radial direction of the rotary frame, and a copying device that presses the copying roller attached to the torch holder against the outer surface of the pipe to be cut. The pipe to be cut, which is fixed to the main body frame through the center hole of the frame, is rotated by the rotating frame to be cut by the plasma cutting machine. To provide a type cutting machine.

【0010】この切断機は、回転枠が1回転した位置で
トーチホルダがパイプから引き離され、回転枠が逆転し
て原位置に戻るようにしておくと好ましい。
In this cutting machine, it is preferable that the torch holder is separated from the pipe at a position where the rotary frame has rotated once, and the rotary frame is reversed to return to the original position.

【0011】また、移動中のパイプを切断するものは、
レール上を転動して全体を移動させる車輪を備えさせ
る。車輪の回転駆動装置を付加して自走機能をもたせる
と、追従切断後に切断機を自走させて原位置に復帰させ
たり、切断機を切断点に自走させて静止しているパイプ
の切断を行ったりすることができる。
Further, the one for cutting the moving pipe is
It is equipped with wheels that roll on the rails and move the whole. When a wheel rotation drive device is added to provide a self-propelled function, the cutting machine can be self-propelled to return to its original position after follow-up cutting, or the cutting machine can be self-propelled to the cutting point to cut stationary pipes. Can be done.

【0012】[0012]

【作用】この発明のパイプ切断機は、回転枠の内側に通
したパイプを本体フレームに固定し、この状態で回転枠
を回転させ、その回転枠で支えたトーチから高温プラズ
マ流を噴出させてパイプを切断する。
In the pipe cutting machine of the present invention, the pipe passed through the inside of the rotary frame is fixed to the main body frame, the rotary frame is rotated in this state, and the high temperature plasma flow is ejected from the torch supported by the rotary frame. Cut the pipe.

【0013】プラズマ切断機による切断は、切断幅が狭
くてほぼ一定し、切り口もガス切断に比べてきれいに仕
上がる。また、パイプの肉厚変化に対してプラズマ切断
機の出力制御のみで対応でき、複雑な調整を必要としな
い。
The cutting by the plasma cutting machine has a narrow cutting width and is substantially constant, and the cut end is finished more cleanly than the gas cutting. In addition, a change in the wall thickness of the pipe can be dealt with only by controlling the output of the plasma cutting machine, and complicated adjustment is not required.

【0014】危険なガスを扱う必要がなく、スラグの飛
散も少ないため、ガス切断機に比べて安全管理面で有利
になる。
Since it is not necessary to handle dangerous gas and the slag is less scattered, it is advantageous in safety management as compared with the gas cutting machine.

【0015】また、このプラズマ切断機を採用したこと
で、ガス切断機以上の小型化が図れる。移動式ガス切断
機に付帯するガスホースの追従設置も要らず設備スペー
スも削減できる。
Further, by adopting this plasma cutting machine, it is possible to make the size smaller than that of the gas cutting machine. It is not necessary to install the gas hose attached to the mobile gas cutter, and the equipment space can be reduced.

【0016】なお、倣い装置は、パイプの歪や回転枠と
パイプ間の芯ずれを吸収してトーチとパイプ間の距離を
一定させる働きをする。この倣い装置の設置により確実
で安定した切断がなされ、切り残し部等が生じない。ま
た、パイプを回転枠と同軸上に位置決めする必要もなく
なり、チャッキング装置とセッティング作業の簡素化が
図れる。
The copying apparatus functions to absorb the distortion of the pipe and the misalignment between the rotary frame and the pipe to make the distance between the torch and the pipe constant. By installing this copying apparatus, reliable and stable cutting can be performed, and no uncut portion is left. Further, it is not necessary to position the pipe coaxially with the rotary frame, and the chucking device and setting work can be simplified.

【0017】このほか、車輪付きのパイプ切断機は、移
動中のパイプに追従させて切断を行うことができる。移
動中のパイプをチャッキング装置で掴むとパイプの移動
力でパイプ切断機が走行するので、車輪の駆動機構は無
くてもよいが、その駆動機構を設けてパイプ切断機を自
走できるようにしておくと、追従後のパイプ切断機の原
位置復帰が人手を要せずに行える。
In addition, the pipe cutting machine with wheels can cut along the moving pipe. Since the pipe cutting machine travels with the moving force of the pipe when the moving pipe is gripped by the chucking device, the drive mechanism for the wheels may be omitted, but the drive mechanism is provided so that the pipe cutting machine can be self-propelled. By doing so, it is possible to return the pipe cutting machine to its original position after the follow-up without manpower.

【0018】また、位置固定のパイプ切断機は、パイプ
の切断点を切断機に合わせる必要があり、充分な作業ス
ペースがないと切断が行えないが、走行式にしておけ
ば、静止保持したパイプも、切断点に切断機を移動させ
て自由な長さに切断することができる。
Further, in the fixed position pipe cutting machine, the cutting point of the pipe needs to be aligned with the cutting machine, and the cutting cannot be performed unless there is a sufficient working space. Also, it is possible to move the cutting machine to the cutting point and cut to a free length.

【0019】[0019]

【発明の実施の形態】以下、この発明の実施形態を図1
乃至図6に基づいて説明する。このパイプ切断機1は、
本体フレーム2と、その本体フレームに設けるチャッキ
ング装置3と、本体フレーム2の片端に定位置回転可能
に取り付ける回転枠4と、この回転枠4の回転駆動機構
5と、トーチ6aとケーブル6bを備えるプラズマ切断
機6(本体部の制御盤10の中にある)と、トーチ6a
を保持するトーチホルダ7と、回転枠4の端面に取り付
ける倣い装置8と、車輪9aを含む切断機の走行装置9
とを備えて成る。
BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to FIG.
It will be described with reference to FIG. This pipe cutting machine 1
The main body frame 2, the chucking device 3 provided on the main body frame, the rotary frame 4 attached to one end of the main body frame 2 for fixed position rotation, the rotary drive mechanism 5 of the rotary frame 4, the torch 6a, and the cable 6b. A plasma cutting machine 6 (in the control panel 10 of the main body) provided, and a torch 6a
A torch holder 7 for holding the object, a copying device 8 attached to the end surface of the rotary frame 4, and a traveling device 9 for a cutting machine including wheels 9a.
And.

【0020】本体フレーム2は、中央部がパイプ挿通部
として前後に突き抜けた方形の枠であり、計4個の車輪
9aに支えられている。
The main body frame 2 is a rectangular frame whose central portion penetrates forward and backward as a pipe insertion portion, and is supported by a total of four wheels 9a.

【0021】チャッキング装置3は、円弧溝を対向して
設けた図3に示す固定子3aと可動子3bを本体フレー
ム2内に設け、可動子3bをエアーシリンダ3cで昇降
させて固定子3aとの間にパイプPを挟みもつ構造にし
てある。固定子3aと可動子3bは、円弧溝の深さをそ
の溝の半径よりも小さくしてあり、円弧溝半径よりも小
径のパイプも把持できる。図2の3dは可動子3bの昇
降ガイドである。
In the chucking device 3, a stator 3a and a mover 3b shown in FIG. 3 having arc grooves facing each other are provided in the main body frame 2, and the mover 3b is moved up and down by an air cylinder 3c to move the stator 3a. The structure is such that a pipe P is sandwiched between and. In the stator 3a and the mover 3b, the depth of the arc groove is smaller than the radius of the groove, and a pipe having a diameter smaller than the radius of the arc groove can be gripped. Reference numeral 3d in FIG. 2 is a lifting guide for the mover 3b.

【0022】回転枠4は、図1に示すように、中心穴を
本体フレーム2のパイプ挿通部の延長上に位置させ、本
体フレーム2に取り付けたガイドローラ11(これは少
なくとも3個必要)を回転枠の外周の環状溝4aに入り
込ませてそのガイドローラで支えている。
As shown in FIG. 1, the rotary frame 4 has a center hole located on an extension of the pipe insertion portion of the main body frame 2 and has guide rollers 11 (at least three of which are required) attached to the main body frame 2. It is inserted into the annular groove 4a on the outer periphery of the rotary frame and supported by its guide roller.

【0023】回転駆動機構5は、本体フレーム2に内蔵
したモータ(図示せず)の回転を、図4に示す小スプロ
ケットホイール5a、チェーン5b、回転枠の内側端面
に同心的に固定した大スプロケットホイール5c経由で
回転枠4に伝えてその回転枠4を回転させるものを示し
たが、動力伝達要素としてギヤなどを用いたものであっ
てもよい。
The rotation driving mechanism 5 is a large sprocket in which the rotation of a motor (not shown) incorporated in the main body frame 2 is concentrically fixed to the small sprocket wheel 5a, the chain 5b, and the inner end surface of the rotating frame shown in FIG. Although the rotary frame 4 is transmitted to the rotary frame 4 via the wheel 5c to rotate the rotary frame 4, a gear or the like may be used as the power transmission element.

【0024】プラズマ切断装置のトーチ6aは、トーチ
ホルダ7に固定される。また、トーチ6aに連なるケー
ブル6bは、回転枠4の回転に追従できる長さにし、回
転枠4の端面に、回転枠4が回転したときにケーブル6
bをパイプに接しない位置で受け支えるケーブル支持具
12を突出して設けている。
The torch 6a of the plasma cutting device is fixed to the torch holder 7. The cable 6b connected to the torch 6a has a length that can follow the rotation of the rotary frame 4, and the cable 6b is attached to the end surface of the rotary frame 4 when the rotary frame 4 rotates.
A cable support 12 is provided so as to project and support b at a position where it does not contact the pipe.

【0025】プラズマ切断機には、プラズマジェット方
式、プラズマアーク方式、及び両方式を併用した中間方
式があり、パイプの切り口は、中間方式がきれいに仕上
がる。この中間方式とプラズマアーク方式の切断機は、
チャッキング装置3の可動子3bを陽極にすると被切断
パイプを簡単に陽極にして切断を行うことができる。
The plasma cutting machine includes a plasma jet method, a plasma arc method, and an intermediate method in which both methods are used in combination, and the cut end of the pipe is finished nicely in the intermediate method. This intermediate type and plasma arc type cutting machine,
When the movable element 3b of the chucking device 3 is used as an anode, the pipe to be cut can be easily used as an anode for cutting.

【0026】トーチホルダ7は、倣い装置8によってそ
の位置が調整される。
The position of the torch holder 7 is adjusted by the copying device 8.

【0027】倣い装置8は、図5に示すように、トーチ
ホルダ7を回転枠4の径方向に進退させるエアーシリン
ダ8aと、2本のガイドロッド8bと、トーチホルダ7
に取り付ける倣いローラ8cを備えている。エアーシリ
ンダ8aにエアーを供給するピストンロッドがスプリン
グ8dを圧縮して動き、トーチホルダ7が引き戻され
る。また、エアーシリンダ8aからエアーを排出する
と、スプリング8dの力でトーチホルダが前進し、パイ
プPの外周上を転動する倣いローラ8cがパイプPの外
周に適度な圧力で押し当てられる。
As shown in FIG. 5, the copying apparatus 8 includes an air cylinder 8a for advancing and retracting the torch holder 7 in the radial direction of the rotary frame 4, two guide rods 8b, and the torch holder 7
The copying roller 8c is attached to the. The piston rod that supplies air to the air cylinder 8a compresses the spring 8d and moves, and the torch holder 7 is pulled back. When the air is discharged from the air cylinder 8a, the torch holder advances by the force of the spring 8d, and the copying roller 8c rolling on the outer circumference of the pipe P is pressed against the outer circumference of the pipe P with an appropriate pressure.

【0028】走行装置の車輪9aは、平行配置の2条の
レールR(図6参照)上を転動する。この車輪9aは、
モータを動力源とする駆動機構(図示せず)によって駆
動される。
The wheels 9a of the traveling device roll on two parallel rails R (see FIG. 6). This wheel 9a
It is driven by a drive mechanism (not shown) using a motor as a power source.

【0029】また、チャッキング装置3によるパイプの
クランプとアンクランプ、回転駆動機構5による回転枠
4の回転駆動、倣い装置8によるトーチホルダ7の後
退、前進、切断機の自走は制御盤10に内蔵した制御回
路によって制御される。
The control panel 10 is used for clamping and unclamping the pipe by the chucking device 3, rotationally driving the rotary frame 4 by the rotary drive mechanism 5, retreating and advancing the torch holder 7 by the copying device 8, and self-propelled by the cutting machine. It is controlled by the built-in control circuit.

【0030】なお、回転枠4は、原位置から1回転した
位置で停止し、その位置でトーチ6aからのプラズマ噴
射がストップし、その後、トーチホルダ7が後退し、回
転枠4が逆転して原位置に戻るようにしてある。
The rotary frame 4 stops at a position where it makes one rotation from the original position, plasma injection from the torch 6a stops at that position, and then the torch holder 7 retracts, and the rotary frame 4 reverses and rotates. I am trying to return to the position.

【0031】以上のように構成したパイプ切断機のパイ
プ挿通部と回転枠4に被切断パイプPを通してそのパイ
プPをチャッキング装置3で本体フレーム2に固定す
る。その後、トーチホルダ7を前進させて図5のスプリ
ング8dの力で倣いローラ8cをパイプPの外面に押し
当て、トーチ6aから高温のプラズマ流を噴出させて回
転枠4の回転によりパイプ切断を行う。このとき、倣い
装置8によりトーチ6aの先端からパイプまでの距離が
一定に保たれるので、切り残し等は起こらず、切り口の
性状も均一なものになる。
The pipe P to be cut is passed through the pipe insertion portion and the rotary frame 4 of the pipe cutting machine configured as described above, and the pipe P is fixed to the main body frame 2 by the chucking device 3. After that, the torch holder 7 is moved forward, the copying roller 8c is pressed against the outer surface of the pipe P by the force of the spring 8d in FIG. 5, the high temperature plasma flow is ejected from the torch 6a, and the rotation frame 4 is rotated to cut the pipe. At this time, since the distance from the tip of the torch 6a to the pipe is kept constant by the copying device 8, there is no uncut portion and the cut has uniform properties.

【0032】パイプPが造管機等から連続的に流れ出て
くる場合には、チャッキング装置3によるパイプ固定後
にパイプ切断機が図6に示すようにパイプPに引かれて
追従し、その間に回転枠4が1回転してローラコンベア
等で受け支えたパイプPの切断を完了する。その後、走
行装置9が駆動されてパイプ切断機が原位置に自動復帰
する。従って、移動中のパイプを繰り返し切断するもの
には、自走式の走行装置9を備えさせるのがよい。
When the pipe P continuously flows out from the pipe forming machine or the like, after the pipe is fixed by the chucking device 3, the pipe cutting machine is pulled and follows the pipe P as shown in FIG. The rotary frame 4 makes one rotation to complete the cutting of the pipe P supported by the roller conveyor or the like. After that, the traveling device 9 is driven and the pipe cutting machine automatically returns to the original position. Therefore, the self-propelled traveling device 9 is preferably provided for those that repeatedly cut the moving pipe.

【0033】この走行装置9を備えさせれば、静止保持
したパイプの切断点に切断機を移動させてその位置でパ
イプを切断することもできる。
If the traveling device 9 is provided, the cutting machine can be moved to the cutting point of the pipe held stationary and the pipe can be cut at that position.

【0034】なお、走行する切断機への電力供給は、移
動電源(図示せず)を利用して行われる。また、静止パ
イプの切断は、走行装置9が無くても行える。
Power is supplied to the traveling cutting machine by using a mobile power source (not shown). Further, the stationary pipe can be cut without the traveling device 9.

【0035】[0035]

【発明の効果】以上述べたように、この発明のパイプの
切断機は、被切断パイプを通す回転枠にプラズマ切断機
のトーチを取付け、そのトーチと被切断パイプ間の距離
を倣い装置で一定に保ちながら回転枠を回転させてパイ
プを切断するので、大径パイプ用切断機の小型化、設置
スペースの縮小、切断の正確化と迅速化、切断幅の縮
小、切断面の性状向上等が図れる。
As described above, in the pipe cutting machine of the present invention, the torch of the plasma cutting machine is attached to the rotary frame through which the pipe to be cut is passed, and the distance between the torch and the pipe to be cut is fixed by the copying device. Since the rotating frame is rotated while keeping it to cut the pipe, the cutting machine for large diameter pipes can be downsized, the installation space can be reduced, the cutting can be done more accurately and quickly, the cutting width can be reduced, and the properties of the cutting surface can be improved. Can be achieved.

【0036】また、車輪を有するものは、移動中のパイ
プに追従させてパイプの定尺切断等を行うことができ
る。自走機能を付与したものは、パイプに追従した切断
機の原位置復帰や静止パイプ切断時の切断点への移動な
ども行え、効率的なパイプ切断が可能になる。
In addition, those having wheels can be made to follow the moving pipe to perform constant length cutting of the pipe. For those with a self-propelled function, the cutting machine that follows the pipe can be returned to its original position and moved to the cutting point when cutting the stationary pipe, enabling efficient pipe cutting.

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

【図1】この発明の切断機の一例を示す正面図FIG. 1 is a front view showing an example of a cutting machine of the present invention.

【図2】同上の切断機の側面図FIG. 2 is a side view of the above cutting machine.

【図3】チャッキング装置の概要を示す正面図FIG. 3 is a front view showing an outline of a chucking device.

【図4】回転枠の回転駆動機構を示す端面図FIG. 4 is an end view showing a rotary drive mechanism of a rotary frame.

【図5】倣い装置の概要を示す断面図FIG. 5 is a sectional view showing the outline of the copying apparatus.

【図6】移動中のパイプを切断する過程を示す図FIG. 6 is a diagram showing a process of cutting a moving pipe.

【符号の説明】[Explanation of symbols]

1 パイプ切断機 2 本体フレーム 3 チャッキング装置 3a 固定子 3b 可動子 3c エアーシリンダ 4 回転枠 5 回転駆動機構 6 プラズマ切断機 6a トーチ 6b ケーブル 7 トーチホルダ 8 倣い装置 8a エアーシリンダ 8c 倣いローラ 8d スプリング 9 走行装置 10 制御盤 11 ガイドローラ 12 ケーブル支持具 P 被切断パイプ R レール 1 Pipe cutting machine 2 body frame 3 chucking device 3a Stator 3b mover 3c air cylinder 4 rotating frame 5 rotation drive mechanism 6 Plasma cutting machine 6a torch 6b cable 7 Torch holder 8 Copying device 8a air cylinder 8c Copying roller 8d spring 9 traveling devices 10 control panel 11 Guide roller 12 Cable support P Cut pipe R rail

Claims (4)

【特許請求の範囲】[Claims] 【請求項1】 パイプ挿通部を有する本体フレーム、パ
イプ挿通部に挿入した被切断パイプを本体フレームに固
定するチャッキング装置、中心穴をパイプ挿通部の延長
上に配置して本体フレームの片端に定位置回転可能に取
り付ける回転駆動機構を備えた回転枠、本体フレームに
備えさせるプラズマ切断機、この切断機のトーチを保持
するトーチホルダ、及びそのトーチホルダを回転枠の径
方向に進退可能に支え、トーチホルダに取り付けた倣い
ローラを被切断パイプの外面に押し当てる倣い装置を有
し、前記回転枠の端面に前記倣い装置を取付け、回転枠
の中心穴に通して本体フレームに固定した被切断パイプ
を、回転枠を回転させてプラズマ切断機で切断するよう
にしたパイプ切断機。
1. A main body frame having a pipe insertion portion, a chucking device for fixing the pipe to be cut inserted in the pipe insertion portion to the main body frame, and a central hole is arranged on an extension of the pipe insertion portion to one end of the main body frame. A rotary frame equipped with a rotation drive mechanism that is mounted so that it can rotate in a fixed position, a plasma cutting machine provided on the main body frame, a torch holder that holds the torch of this cutting machine, and a torch holder that supports the torch holder so that it can move forward and backward in the radial direction of the rotary frame. Having a copying device that presses the copying roller attached to the outer surface of the pipe to be cut, the copying device is attached to the end surface of the rotating frame, and the pipe to be cut is fixed to the main body frame through the center hole of the rotating frame. A pipe cutting machine that rotates a rotating frame and cuts with a plasma cutting machine.
【請求項2】 回転枠が1回転した位置でトーチホルダ
がパイプから引き離され、回転枠が逆転して原位置に戻
るようにした請求項1記載のパイプ切断機。
2. The pipe cutting machine according to claim 1, wherein the torch holder is separated from the pipe at a position where the rotary frame has rotated once, and the rotary frame is reversed to return to the original position.
【請求項3】 レール上を転動して全体を移動させる車
輪を備えさせた請求項1又は2記載のパイプ切断機。
3. The pipe cutting machine according to claim 1, further comprising a wheel that rolls on a rail to move the entire wheel.
【請求項4】 車輪の回転駆動装置を付加して自走機能
をもたせた請求項3記載のパイプ切断機。
4. The pipe cutting machine according to claim 3, further comprising a rotation driving device for a wheel so as to have a self-propelled function.
JP2001392158A 2001-12-25 2001-12-25 Pipe cutting machine Pending JP2003191077A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2001392158A JP2003191077A (en) 2001-12-25 2001-12-25 Pipe cutting machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2001392158A JP2003191077A (en) 2001-12-25 2001-12-25 Pipe cutting machine

Publications (1)

Publication Number Publication Date
JP2003191077A true JP2003191077A (en) 2003-07-08

Family

ID=27599557

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2001392158A Pending JP2003191077A (en) 2001-12-25 2001-12-25 Pipe cutting machine

Country Status (1)

Country Link
JP (1) JP2003191077A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200445318Y1 (en) * 2008-12-09 2009-07-20 (주) 유창스틸산업 Pipe cutting equipment
CN108080775A (en) * 2018-01-02 2018-05-29 广州华立科技职业学院 A kind of plasma cutting machine for metal tube
CN111644735A (en) * 2020-06-22 2020-09-11 中国科学院合肥物质科学研究院 Pipeline cutting robot

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200445318Y1 (en) * 2008-12-09 2009-07-20 (주) 유창스틸산업 Pipe cutting equipment
CN108080775A (en) * 2018-01-02 2018-05-29 广州华立科技职业学院 A kind of plasma cutting machine for metal tube
CN111644735A (en) * 2020-06-22 2020-09-11 中国科学院合肥物质科学研究院 Pipeline cutting robot
CN111644735B (en) * 2020-06-22 2022-07-08 中国科学院合肥物质科学研究院 Pipeline cutting robot

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