JPS6157563B2 - - Google Patents

Info

Publication number
JPS6157563B2
JPS6157563B2 JP14906977A JP14906977A JPS6157563B2 JP S6157563 B2 JPS6157563 B2 JP S6157563B2 JP 14906977 A JP14906977 A JP 14906977A JP 14906977 A JP14906977 A JP 14906977A JP S6157563 B2 JPS6157563 B2 JP S6157563B2
Authority
JP
Japan
Prior art keywords
rope drum
rope
plug gauge
mandrel
amount
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
Application number
JP14906977A
Other languages
Japanese (ja)
Other versions
JPS5480770A (en
Inventor
Naotomi Myagawa
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.)
Daido Kikai Seisakusho KK
Original Assignee
Daido Kikai Seisakusho 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 Daido Kikai Seisakusho KK filed Critical Daido Kikai Seisakusho KK
Priority to JP14906977A priority Critical patent/JPS5480770A/en
Publication of JPS5480770A publication Critical patent/JPS5480770A/en
Publication of JPS6157563B2 publication Critical patent/JPS6157563B2/ja
Granted legal-status Critical Current

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  • A Measuring Device Byusing Mechanical Method (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)

Description

【発明の詳細な説明】 (発明の目的) 本発明は管材のドリフト検査機におけるプラグ
ゲージ停止位置制御装置に関するものである。
DETAILED DESCRIPTION OF THE INVENTION (Object of the Invention) The present invention relates to a plug gauge stop position control device in a pipe material drift inspection machine.

(従来技術) 従来油井管の真直度は厳しく検査されるが、そ
の検査方法は油井管の内径に対応した外径のプラ
グゲージを先端に装着したマンドレルを管内に挿
入するもので、プラグゲージがスムーズに通過で
きるかどうかによつて管材の良否が決定される。
第4図に示すように管材Pは一端にカツプリング
Cが装着され、他端にねじ部を保護するプロテク
タHが装着されており、プロテクタHの穴部の径
はd、プラグゲージGの外径はD、D>dである
ためプラグゲージGは管材Pから突出させること
ができない。従つて管材Pの検査を正確に行なう
ためにはプラグゲージGとプロテクタHとの隙間
Eを最小限に抑える必要があり、プラグゲージG
の位置決めを正確に行なわなければならない。プ
ラグゲージGの管材P内への挿入量を知る方法と
して従来から採用されている方法は、マンドレル
MにローラRを当接してプラグゲージGの移動量
をローラRの回転量に変換し、カウンターを作動
させて移動量を表示させるものがあつた。しかし
この方法ではマンドレルMとローラR間の滑りに
よつてローラRに回転むらを生じ、プラグゲージ
の移動量に大きな誤差を生ずる欠点があつた。
(Prior art) Conventionally, the straightness of oil country tubular goods is strictly inspected, but the inspection method involves inserting a mandrel into the pipe with a plug gauge attached to its tip, the outer diameter of which corresponds to the inner diameter of the oil country tubular goods. The quality of the pipe material is determined by whether it can pass smoothly.
As shown in Fig. 4, a coupling C is attached to one end of the pipe material P, and a protector H for protecting the threaded portion is attached to the other end.The diameter of the hole of the protector H is d, and the outer diameter of the plug gauge G. is D, and since D>d, the plug gauge G cannot protrude from the pipe material P. Therefore, in order to accurately inspect the pipe material P, it is necessary to minimize the gap E between the plug gauge G and the protector H.
must be positioned accurately. The conventional method of determining the amount of insertion of the plug gauge G into the pipe material P is to contact the mandrel M with a roller R, convert the amount of movement of the plug gauge G into the amount of rotation of the roller R, and use a counter. There was one that operated and displayed the amount of movement. However, this method has the drawback that slippage between the mandrel M and the roller R causes uneven rotation of the roller R, resulting in a large error in the amount of movement of the plug gauge.

(発明の構成) 本発明は上述の欠点を解消するため、ドリフト
検査機の進退自在なマンドレルの後端にマンドレ
ルの変位に伴つてガイドレール上を走行する台車
を連結し、ガイドレールの前後に設置した架台上
にロープドラムを回転自在に支承し、この前後の
ドラムに巻装したワイヤロープを台車に連結し、
ロープドラムの回転に伴つてプラグゲージの管材
への挿入量に対応したパルスを発信するパルス発
信装置をロープドラムと同軸に連結し、更にロー
プドラムの回転の有無を検出させる回転計をロー
プドラムに連動させ、プラグゲージの挿入量即ち
台車の走行量をロープドラムの回転量として検出
し、ロープドラムと同軸のパルス発信装置により
パルスを発信させ、このパルス数を制御器に入力
させてプラグゲージの停止位置を制御させるよう
にしたもので、以下実施例について説明する。
(Structure of the Invention) In order to eliminate the above-mentioned drawbacks, the present invention connects a cart to the rear end of the mandrel which can move forward and backward in a drift inspection machine, and which runs on a guide rail as the mandrel is displaced. The rope drum is rotatably supported on the installed frame, and the wire ropes wound around the front and rear drums are connected to the trolley.
A pulse transmitter that emits pulses corresponding to the insertion amount of the plug gauge into the pipe material as the rope drum rotates is coaxially connected to the rope drum, and a tachometer that detects whether or not the rope drum is rotating is attached to the rope drum. The amount of insertion of the plug gauge, that is, the amount of travel of the trolley is detected as the amount of rotation of the rope drum, the pulse transmitter coaxial with the rope drum emits pulses, and this number of pulses is input to the controller to control the plug gauge. The stop position is controlled, and an embodiment thereof will be described below.

第1図及び第2図において、ドリフト検査機1
は前方の架台2にマンドレル3をピンチローラー
4,4で挾持してマンドレル3を軸方向に移送自
在にし、マンドレル3の先端に装着したプラグゲ
ージ5を油井管等の管材P内へ挿入自在とする。
ピンチローラ4,4はその挾持力を調節できるよ
うに回転自在に支承し、このピンチローラ4,4
の一方を架台2の側部に設置した駆動装置6に連
動させる。架台2に連なる架台7上に胴周面に螺
旋状にロープ溝を形成したロープドラム8を回転
自在に支承し、このロープドラム8と同軸にパル
ス発信装置9を連結し、ロープドラム8の回転量
をパルス数に変換させる。架台7上に回転計10
を設け、この回転計10をロープドラム8に連動
させ、ロープドラム8の回転の有無を検出させ
る。床Fの上方にガイドレール11を配設し、こ
のガイドレール11上の数箇所にマンドレル3を
載置する回転自在なガイドローラ12,12を設
ける。ガイドレール11にガイドされて左右へ走
行自在な台車13を設け、この台車13にマンド
レル3の後端を連結し、マンドレル3の変位に伴
つて台車13が移動できるようにする。ガイドレ
ール11の後方に架台14を設置し、この架台1
4上にロープドラム支承台15,15を設け、ロ
ープドラム支承台15,15に胴周面に螺旋状の
ロープ溝を形成したロープドラム16を軸受1
7,17で回転自在に支承する。軸受17,17
はロープドラム支承台15,15を前後に移動可
能である。架台14にロープシープ18,18を
回転自在に支承し、軸受17,17に一端を繋止
したワイヤロープ19,19をロープシープ1
8,18に掛装し、他端にバランスウエイト2
0,20を繋止し、ロープドラム16を常に後方
へ一定の張力で引張つておく。前方の架台7及び
後方の架台14に台車13の走行を制限するスト
ツパー21及び22を取付ける。前方のロープド
ラム8にワイヤロープ23の一端を繋止し、台車
13の走行量に対応させて所要回数巻装し、更に
後方のロープドラム16に数回巻装してロープド
ラム16に繋止する。ロープドラム8に一端を繋
止して数回巻装したワイヤロープ24を台車13
の上部に設けた繋止具25に繋止し、更にロープ
ドラム16に台車13の走行量に対応させて所要
回数巻装して端部をロープドラム16に繋止す
る。繋止具25は第3図に示すように、台車13
に取付けたアーム26に左右へ移動自在に装着さ
れている。またガイドレール11の両側の数箇所
に支柱27,28を対向させて立設し、この支柱
27,28からそれぞれ内向きに幅広のガイドロ
ーラ29,29を回転自在に突出させて支柱27
のガイド29で上方のワイヤロープ23をガイド
させ、支柱28のガイドローラ29で下方のワイ
ヤロープ24をガイドさせる。パルス発信装置9
に駆動装置6の制御装置30を接続してプラグゲ
ージ5を定位置に停止させる。また回転計10は
駆動装置6に接続してロープドラム8の回転が停
止した場合に駆動装置6を停止させる。
In Figures 1 and 2, drift inspection machine 1
The mandrel 3 is held on the front frame 2 by pinch rollers 4, 4 so that the mandrel 3 can be freely transferred in the axial direction, and the plug gauge 5 attached to the tip of the mandrel 3 can be freely inserted into the pipe material P such as an oil country pipe. do.
The pinch rollers 4, 4 are rotatably supported so that their clamping force can be adjusted.
One of the two is interlocked with a drive device 6 installed on the side of the pedestal 2. A rope drum 8 having a spiral rope groove formed on the circumferential surface of the body is rotatably supported on a pedestal 7 connected to the pedestal 2, and a pulse transmitting device 9 is connected coaxially with the rope drum 8, and the rotation of the rope drum 8 is Convert the amount to the number of pulses. Tachometer 10 on pedestal 7
The tachometer 10 is interlocked with the rope drum 8 to detect whether or not the rope drum 8 is rotating. A guide rail 11 is provided above the floor F, and rotatable guide rollers 12, 12 on which the mandrel 3 is placed are provided at several locations on the guide rail 11. A truck 13 that can move left and right while being guided by a guide rail 11 is provided, and the rear end of a mandrel 3 is connected to this truck 13, so that the truck 13 can move as the mandrel 3 is displaced. A pedestal 14 is installed behind the guide rail 11, and this pedestal 1
Rope drum support stands 15, 15 are provided on the rope drum support stand 15, 15, and a rope drum 16 with a spiral rope groove formed on the circumferential surface of the trunk is mounted on the rope drum support stand 15, 15.
It is rotatably supported at 7 and 17. Bearings 17, 17
is capable of moving the rope drum support bases 15, 15 back and forth. Rope sheep 18, 18 are rotatably supported on a frame 14, and wire ropes 19, 19, one end of which is connected to bearings 17, 17, are attached to the rope sheep 1.
8 and 18, and balance weight 2 on the other end.
0 and 20 are tied together, and the rope drum 16 is always pulled rearward with a constant tension. Stoppers 21 and 22 for restricting the traveling of the trolley 13 are attached to the front mount 7 and the rear mount 14. One end of the wire rope 23 is tied to the front rope drum 8, and the wire rope 23 is wound a required number of times in accordance with the travel distance of the trolley 13, and further wrapped several times around the rear rope drum 16, and then tied to the rope drum 16. do. A wire rope 24 that has one end tied to the rope drum 8 and wound several times is transported to the trolley 13.
The rope is tied to a locking tool 25 provided on the upper part of the rope, and the rope is further wound around the rope drum 16 a required number of times in accordance with the travel distance of the trolley 13, and the end portion is tied to the rope drum 16. As shown in FIG.
It is attached to an arm 26 attached to the body so as to be movable left and right. In addition, support columns 27 and 28 are arranged to face each other at several locations on both sides of the guide rail 11, and wide guide rollers 29 and 29 are rotatably protruded inward from the support columns 27 and 28, respectively.
The upper wire rope 23 is guided by the guide 29, and the lower wire rope 24 is guided by the guide roller 29 of the support column 28. Pulse transmitter 9
The control device 30 of the drive device 6 is connected to the plug gauge 5 to stop the plug gauge 5 at a fixed position. The tachometer 10 is also connected to the drive device 6 to stop the drive device 6 when the rotation of the rope drum 8 stops.

(発明の作用) 本発明の作用を説明すれば、駆動装置6を作動
させてピンチローラ4,4に回転を与え、マンド
レル3を矢印S方向へ送り、プラグゲージ5を所
定の挿入位置から水平に載置された管材P内へ
徐々に挿入していくと、マンドレル3の移動と共
に台車13も左方に移動し、ワイヤロープ24が
後方のロープドラム16から巻き戻されて前方の
ロープドラム8に巻き付けられる。一方、ワイヤ
ロープ23はロープドラム16の回転に伴つてロ
ープドラム8から巻き戻され、ロープドラム16
に巻き付けられる。従つて、前後のロープドラム
8及び16は共に同一方向へ回転する。ロープド
ラム8には同軸にパルス発信装置9が連結してあ
るので、ロープドラム8の回転量即ちマンドレル
3の移動量がパルスに変換され発信される。この
パルスを予じめ設定されたパイプ長さにより決定
されるプラグゲージ5の停止位置に対応させてお
けば、プラグゲージ5を正確な停止位置に停止さ
せることができる。プラグゲージ5を管材P内へ
挿入していくと、真直度が悪い場合にはプラグゲ
ージ5がつかえてこれ以上進めなくなり、従つて
ロープドラム8の回転が止まり、このロープドラ
ム8に連動させた回転計10に回転が検出されな
くなり、この回転計10から発せられた信号によ
り駆動装置6が直ちに停止する。後方のロープド
ラム16はバランスウエイト20,20で常に後
方に引張られており、ワイヤロープ23及び24
の伸びが補正される。
(Operation of the invention) To explain the operation of the invention, the drive device 6 is operated to give rotation to the pinch rollers 4, 4, the mandrel 3 is sent in the direction of arrow S, and the plug gauge 5 is horizontally moved from a predetermined insertion position. As the mandrel 3 moves, the cart 13 also moves to the left, and the wire rope 24 is unwound from the rope drum 16 at the rear, and the wire rope 24 is unwound from the rope drum 8 at the front. wrapped around. On the other hand, the wire rope 23 is unwound from the rope drum 8 as the rope drum 16 rotates, and the wire rope 23 is unwound from the rope drum 8 as the rope drum 16 rotates.
wrapped around. Therefore, both the front and rear rope drums 8 and 16 rotate in the same direction. Since a pulse transmitting device 9 is coaxially connected to the rope drum 8, the amount of rotation of the rope drum 8, that is, the amount of movement of the mandrel 3 is converted into pulses and transmitted. By making this pulse correspond to the stop position of the plug gauge 5 determined by a preset pipe length, the plug gauge 5 can be stopped at an accurate stop position. When the plug gauge 5 is inserted into the pipe material P, if the straightness is poor, the plug gauge 5 gets stuck and cannot be advanced any further, and therefore the rotation of the rope drum 8 is stopped, and the rope drum 8 is interlocked with the plug gauge 5. Rotation is no longer detected by the tachometer 10, and the drive device 6 immediately stops due to the signal issued from the tachometer 10. The rear rope drum 16 is always pulled rearward by balance weights 20, 20, and the wire ropes 23 and 24
The elongation of is corrected.

(発明の効果) 本発明はドリフト検査機のマンドレルの後端に
ガイドレール上を走行自在な台車を連結し、ガイ
ドレールの前後の架台にロープドラムを支承し、
台車に一端を繋止したワイヤロープを前後のロー
プドラムに巻装し、前方のロープドラムと同軸に
パルス発信装置を連結してマンドレルの移動量を
ロープドラムの回転量に変換し、このロープドラ
ムの回転によつてパルス信号を発信させ、予じめ
設定されたプラグゲージの停止位置に正確に停止
させるようにしたので、マンドレルの移動量がロ
ープドラムの回転量に変換され、例えばピンチロ
ーラとマンドレルの間に滑りを生じてもプラグゲ
ージの停止位置には何ら影響を与えず、実際にマ
ンドレルが移動しただけしか測定されないため正
確な停止位置が得られる。また管材の径が変化し
ても、マンドレルの先端に装着したプラグゲージ
の交換だけでよく、制御装置は同一のものでよ
い。
(Effects of the Invention) The present invention connects a cart that can run freely on a guide rail to the rear end of a mandrel of a drift inspection machine, supports a rope drum on frames before and after the guide rail,
A wire rope with one end tied to a trolley is wound around the front and rear rope drums, and a pulse transmitter is connected coaxially with the front rope drum to convert the amount of movement of the mandrel into the amount of rotation of the rope drum. The rotation of the mandrel sends out a pulse signal and the plug gauge is stopped precisely at the preset stop position, so the amount of movement of the mandrel is converted into the amount of rotation of the rope drum, which can be used, for example, with a pinch roller. Even if slippage occurs between the mandrels, it has no effect on the stopping position of the plug gauge, and only the actual movement of the mandrels is measured, so an accurate stopping position can be obtained. Furthermore, even if the diameter of the tube material changes, it is only necessary to replace the plug gauge attached to the tip of the mandrel, and the control device may be the same.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明実施例の平面図、第2図は正面
図、第3図は第2図のX―X線矢視図、第4図は
従来技術を示す。 (主要部分の符号の説明)、3…マンドレル、
5…プラグゲージ、7…架台、8…ロープドラ
ム、9…パルス発信装置、11…ガイドレール、
13…台車、14…架台、16…ロープドラム、
30…駆動装置用制御装置。
FIG. 1 is a plan view of an embodiment of the present invention, FIG. 2 is a front view, FIG. 3 is a view taken along the line X--X in FIG. 2, and FIG. 4 shows the prior art. (Explanation of symbols of main parts), 3...Mandrel,
5... Plug gauge, 7... Frame, 8... Rope drum, 9... Pulse transmitter, 11... Guide rail,
13... Trolley, 14... Frame, 16... Rope drum,
30...Control device for drive device.

Claims (1)

【特許請求の範囲】[Claims] 1 先端にプラグゲージを装着した進退自在なマ
ンドレルの後端に連結した台車をガイドレール上
に走行自在に設け、ガイドレールの前後に設置し
た架台上の各ロープドラムにワイヤロープを巻装
して連動させると共に、ワイヤロープを台車に繋
止してマンドレルの移動量をロープドラムの回転
量に対応させ、ロープドラムの回転量に応じてパ
ルスを発信するパルス発信装置をロープドラムに
連結してこのパルス発信装置によりプラグゲージ
の停止位置を制御することを特徴とする管材のド
リフト検査機におけるプラグゲージ停止位置制御
装置。
1 A dolly connected to the rear end of a mandrel that can move forward and backward with a plug gauge attached to the tip is installed on a guide rail so that it can run freely, and a wire rope is wound around each rope drum on a pedestal installed at the front and rear of the guide rail. At the same time, the wire rope is connected to a trolley so that the amount of movement of the mandrel corresponds to the amount of rotation of the rope drum, and a pulse transmitting device that emits pulses according to the amount of rotation of the rope drum is connected to the rope drum. A plug gauge stop position control device for a pipe material drift inspection machine, characterized in that the stop position of the plug gauge is controlled by a pulse transmitter.
JP14906977A 1977-12-12 1977-12-12 Device for controlling plug gauge stop position on pipe drift checking unit Granted JPS5480770A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14906977A JPS5480770A (en) 1977-12-12 1977-12-12 Device for controlling plug gauge stop position on pipe drift checking unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14906977A JPS5480770A (en) 1977-12-12 1977-12-12 Device for controlling plug gauge stop position on pipe drift checking unit

Publications (2)

Publication Number Publication Date
JPS5480770A JPS5480770A (en) 1979-06-27
JPS6157563B2 true JPS6157563B2 (en) 1986-12-08

Family

ID=15466995

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14906977A Granted JPS5480770A (en) 1977-12-12 1977-12-12 Device for controlling plug gauge stop position on pipe drift checking unit

Country Status (1)

Country Link
JP (1) JPS5480770A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013124963A1 (en) * 2012-02-21 2013-08-29 株式会社中田製作所 Pipe drifting machine

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108856340B (en) * 2018-06-06 2020-03-13 安徽工业大学 Automatic drift diameter system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013124963A1 (en) * 2012-02-21 2013-08-29 株式会社中田製作所 Pipe drifting machine

Also Published As

Publication number Publication date
JPS5480770A (en) 1979-06-27

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