JPS649109B2 - - Google Patents
Info
- Publication number
- JPS649109B2 JPS649109B2 JP14607984A JP14607984A JPS649109B2 JP S649109 B2 JPS649109 B2 JP S649109B2 JP 14607984 A JP14607984 A JP 14607984A JP 14607984 A JP14607984 A JP 14607984A JP S649109 B2 JPS649109 B2 JP S649109B2
- Authority
- JP
- Japan
- Prior art keywords
- cutting
- tab plate
- steel pipe
- cutting torch
- torch
- 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
Links
- 229910000831 Steel Inorganic materials 0.000 claims description 20
- 239000010959 steel Substances 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 11
- 230000003028 elevating effect Effects 0.000 description 3
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K7/00—Cutting, scarfing, or desurfacing by applying flames
- B23K7/005—Machines, apparatus, or equipment specially adapted for cutting curved workpieces, e.g. tubes
- B23K7/006—Machines, apparatus, or equipment specially adapted for cutting curved workpieces, e.g. tubes for tubes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明はUO鋼管における管端のタブ板を切
断する方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for cutting a tab plate at the end of a UO steel pipe.
従来、UO鋼管のタブ板を切断する場合は、第
１図ないし第３図に示すように、タブ板切断開始
点すなわちタブ板１の一側部と管端との隅部に対
向する位置で切断トーチ２を停止させて、その切
断トーチ２により被切断部を予熱し穿孔したの
ち、切断トーチ２を管端周囲方向に移動してタブ
板１を切断している。しかるに、このタブ板切断
方法の場合は、切断開始点におけるUO鋼管側へ
の切込量D1が比較的大きいという問題がある。
Conventionally, when cutting a tab plate of a UO steel pipe, as shown in Figs. After the cutting torch 2 is stopped and the section to be cut is preheated and perforated by the cutting torch 2, the cutting torch 2 is moved in the direction around the tube end to cut the tab plate 1. However, in the case of this tab plate cutting method, there is a problem that the depth of cut D1 toward the UO steel pipe side at the cutting start point is relatively large.
〔発明の目的、構成〕
この発明は前述の問題を有利に解決できるUO
鋼管のタブ板切断方法を提供することを目的とす
るものであつて、この発明の要旨とするところ
は、UO鋼管のタブ板を切断トーチにより切断す
る方法において、タブ板１から離れた位置の管端
部に切断トーチ２を対向させ、次いでその位置か
ら切断トーチ２を管端面周囲方向に移動させると
同時に切断を開始してタブ板１を切断除去するこ
とを特徴とするUO鋼管のタブ板切断方法にあ
る。[Objective and structure of the invention] This invention is a UO method that can advantageously solve the above-mentioned problems.
The purpose of this invention is to provide a method for cutting a tab plate of a steel pipe, and the gist of the present invention is to provide a method for cutting a tab plate of a UO steel pipe using a cutting torch. A tab plate for a UO steel pipe characterized in that a cutting torch 2 is opposed to the tube end, and the cutting torch 2 is then moved from that position toward the circumference of the tube end surface to simultaneously start cutting and remove the tab plate 1. It's in the cutting method.
次にこの発明を図示の例によつて詳細に説明す
る。
Next, the present invention will be explained in detail using illustrated examples.
第４図ないし第７図はこの発明を実施する場合
に用いるタブ板切断装置の一例を示すものであつ
て、搬送ローラ３により支持されて管長手方向に
搬送されるUO鋼管４の停止位置の前部に、床上
に固定されたスタンド５が配置され、そのスタン
ド５に対し前後方向（管長手方向）に移動自在に
嵌設されている支持部材６にブラケツト７が固定
され、そのブラケツト７とスタンド５とは支持部
材移動用エアーシリンダー８を介して連結され、
かつ前記支持部材６に回動自在に取付けられてい
る垂直な旋回軸９の下端部に平面コ字状のテンプ
レート１０の中間部が固定され、そのテンプレー
ト１０における両腕１１の先端はタブ板１の両側
においてUO鋼管４の端面に対向している。 FIGS. 4 to 7 show an example of a tab plate cutting device used in carrying out the present invention, and show the stopping position of a UO steel pipe 4 that is supported by transport rollers 3 and transported in the longitudinal direction of the pipe. A stand 5 fixed on the floor is disposed at the front, and a bracket 7 is fixed to a support member 6 fitted to the stand 5 so as to be movable in the front-rear direction (in the longitudinal direction of the pipe). It is connected to the stand 5 via an air cylinder 8 for moving the support member,
The middle part of a U-shaped template 10 is fixed to the lower end of a vertical pivot shaft 9 rotatably attached to the support member 6, and the tips of both arms 11 of the template 10 are attached to the tab plate 1. It faces the end face of the UO steel pipe 4 on both sides.
前記旋回軸９の上部に保持部材１２の下部が固
定され、その保持部材１２の上部には、左右方向
に延長する横行用ガイドフレーム１３の中間部が
固定され、コ字状の可動フレーム１４の上側には
ガイドフレーム１３の上部に嵌合する複数の上部
ガイドローラ１５が取付けられ、かつ前記可動フ
レーム１４の下側にはガイドフレーム１３の下部
に嵌合する複数の下部ガイドローラ１６が取付け
られ、さらに可動フレーム１４には、昇降用螺杆
１７が回転自在に取付けられると共にその螺杆１
７と平行に延長する回り止め用ガイド部材１８が
固定され、また可動フレーム１４の上部には前記
螺杆１７を駆動するための減速機付き電動機から
なる昇降用駆動装置１９が固定されている。 A lower part of a holding member 12 is fixed to the upper part of the pivot shaft 9, and an intermediate part of a traverse guide frame 13 extending in the left-right direction is fixed to the upper part of the holding member 12, and a U-shaped movable frame 14 is fixed to the upper part of the holding member 12. A plurality of upper guide rollers 15 which fit into the upper part of the guide frame 13 are attached to the upper side, and a plurality of lower guide rollers 16 which fit into the lower part of the guide frame 13 are attached to the lower side of the movable frame 14. Further, a lifting screw 17 is rotatably attached to the movable frame 14, and the screw rod 1
An anti-rotation guide member 18 extending parallel to the movable frame 14 is fixed thereto, and an elevating drive device 19 consisting of an electric motor with a speed reducer for driving the screw rod 17 is fixed to the upper part of the movable frame 14.
左右方向に延長する横行用螺杆２０は前記横行
用ガイドフレーム１３に回転自在に取付けられ、
かつそのガイドフレーム１３には前記螺杆２０を
駆動するための減速機付き電動機からなる横行用
駆動装置２１が固定され、さらに可動フレーム１
４の中間部に固定された雌ねじ部材２２は前記螺
杆２０に螺合されている。 A traversing screw rod 20 extending in the left-right direction is rotatably attached to the traversing guide frame 13,
A traverse drive device 21 consisting of an electric motor with a speed reducer for driving the screw rod 20 is fixed to the guide frame 13, and the movable frame 1
A female screw member 22 fixed to the middle part of the screw rod 20 is screwed into the screw rod 20.
昇降部材２３の雌ねじ部は昇降用螺杆１７に螺
合され、かつ昇降部材２３は前記ガイドレール１
８に嵌合され、さらに昇降部材２３に切断トーチ
２と作動トランス２５を有する鋼管検出器２６と
が取付けられ、その作動トランス２５と前記駆動
装置１９とは制御回路２７を介して接続されてい
る。 The female screw portion of the lifting member 23 is screwed into the lifting screw 17, and the lifting member 23 is connected to the guide rail 1.
Further, a cutting torch 2 and a steel pipe detector 26 having an operating transformer 25 are attached to the lifting member 23, and the operating transformer 25 and the driving device 19 are connected via a control circuit 27. .
前述のタブ板切断装置によりUO鋼管４のタブ
板１を切断する場合は、エアーシリンダー８を伸
長して支持部材６を移動させることにより、第５
図に示すようにテンプレート１０の両腕１１の先
端をタブ板１の両側においてUO鋼管４の端面に
押付けて管端位置を検出し、かつ切断トーチ２を
タブ板１から所定距離L1（例えば約50mm）手前の
管端に対向させる（第８図参照）。 When cutting the tab plate 1 of the UO steel pipe 4 using the above-mentioned tab plate cutting device, the fifth tab plate 1 is cut by extending the air cylinder 8 and moving the support member 6.
As shown in the figure, the tips of both arms 11 of the template 10 are pressed against the end face of the UO steel pipe 4 on both sides of the tab plate 1 to detect the pipe end position, and the cutting torch 2 is moved at a predetermined distance L 1 from the tab plate 1 (for example, (approximately 50 mm) facing the front end of the tube (see Figure 8).
次に昇降用駆動装置１９を運転して昇降部材２
３を下降させることにより、鋼管検出器２６を
UO鋼管４の上面に押当てて、トーチエキステン
シヨンを検出し、続いて作動トランス２５の信号
により昇降用駆動装置制御装置２７を介して昇降
用駆動装置１９の運転をさせながら、横行用駆動
装置２１を運転して可動フレーム１４を横行移動
させることにより、切断トーチ２を管端周囲方向
に移動させ、かつ切断トーチ２の移動開始と同時
に、切断トーチ２からアークを放出し、第８図お
よび第９図に示すようにタブ板１の手前の管端を
僅かな切込量D2だけ切断すると共に管端を予熱
し、続いてタブ板１を切断したのち、タブ板１の
後の管端をも僅かな切込量だけ切断し、タブ板１
を所定距離L2（約50mm）過ぎたところで、切断ト
ーチ２のアークおよび移動を停止させる。 Next, the lifting drive device 19 is operated to lift the lifting member 2.
3 by lowering the steel pipe detector 26.
The torch extension is detected by pressing against the upper surface of the UO steel pipe 4, and then the traversing drive is operated while the lifting drive 19 is operated via the lifting drive control device 27 according to the signal from the operating transformer 25. By operating the device 21 and moving the movable frame 14 laterally, the cutting torch 2 is moved in the direction around the tube end, and at the same time as the cutting torch 2 starts moving, an arc is emitted from the cutting torch 2, and as shown in FIG. Then, as shown in FIG. 9, the tube end in front of the tab plate 1 is cut by a small depth of cut D 2 , the tube end is preheated, and then the tab plate 1 is cut. Cut the end of the tube by a small amount, and then remove the tab plate 1.
After passing a predetermined distance L 2 (approximately 50 mm), the arc and movement of the cutting torch 2 are stopped.
この発明によれば、タブ板１から離れた位置の
管端部に切断トーチ２を対向させ、次いでその位
置から切断トーチ２を管端面周囲方向に移動させ
ると同時に切断を開始してタブ板１を切断除去す
るので、切断トーチ２がタブ板切断開始点に達し
たときは既にその切断開始点が予熱されており、
そのため前記従来のタブ板切断方法の場合のよう
にタブ板の一側部と管端との隅部に対向する位置
で切断トーチを停止させて、その切断トーチによ
り被切断部に穿孔する必要はなく、したがつて
UO鋼管側への切込量を小さくして無駄を少なく
できる効果が得られる。
According to this invention, the cutting torch 2 is opposed to the tube end at a position away from the tab plate 1, and then the cutting torch 2 is moved from that position in the circumferential direction of the tube end surface, and at the same time cutting is started to cut the tab plate 1. When the cutting torch 2 reaches the cutting start point of the tab plate, the cutting start point is already preheated.
Therefore, it is not necessary to stop the cutting torch at a position facing the corner of one side of the tab plate and the end of the tube and use the cutting torch to perforate the part to be cut, as in the case of the conventional tab plate cutting method. without, therefore
The effect of reducing waste by reducing the amount of cut into the UO steel pipe side can be achieved.
第１図は従来のタブ板切断方法を実施する場合
の切断トーチとタブ板との相対的位置を示す平面
図、第２図はその正面図、第３図はタブ板切断後
のUO鋼管の一部を示す平面図である。第４図な
いし第６図はこの発明を実施する場合に用いるタ
ブ板切断装置を示すものであつて、第４図は側面
図、第５図は平面図、第６図は第４図のＡ―Ａ線
断面図、第７図は第４図のＢ―Ｂ線断面図であ
る。第８図はこの発明のタブ板切断方法を実施す
る場合の切断トーチとタブ板との相対的位置を示
す平面図、第９図はこの発明によるタブ板切断後
のUO鋼管の一部を示す平面図である。
図において、１はタブ板、２は切断トーチ、４
はUO鋼管、５はスタンド、６は支持部材、８は
支持部材移動用エアーシリンダー、９は旋回軸、
１０はテンプレート、１３は横行用ガイドフレー
ム、１４は可動フレーム、１５は上部ガイドロー
ラ、１６は下部ガイドローラ、１７は昇降用螺
杆、１９は昇降用駆動装置、２０は横行用螺杆、
２１は横行用駆動装置、２３は昇降部材、２５は
作動トランス、２６は鋼管検出器、２７は昇降用
駆動装置制御装置である。
Figure 1 is a plan view showing the relative position of the cutting torch and the tab plate when carrying out the conventional tab plate cutting method, Figure 2 is its front view, and Figure 3 is the UO steel pipe after cutting the tab plate. It is a top view which shows a part. 4 to 6 show a tab plate cutting device used in carrying out the present invention, in which FIG. 4 is a side view, FIG. 5 is a plan view, and FIG. 6 is an A of FIG. 4. - A sectional view taken along line A; FIG. 7 is a sectional view taken along line BB in FIG. 4; Fig. 8 is a plan view showing the relative position of the cutting torch and the tab plate when carrying out the tab plate cutting method of the present invention, and Fig. 9 shows a part of the UO steel pipe after cutting the tab plate according to the present invention. FIG. In the figure, 1 is a tab plate, 2 is a cutting torch, 4
is a UO steel pipe, 5 is a stand, 6 is a support member, 8 is an air cylinder for moving the support member, 9 is a pivot axis,
10 is a template, 13 is a guide frame for traversing, 14 is a movable frame, 15 is an upper guide roller, 16 is a lower guide roller, 17 is a screw for lifting, 19 is a driving device for lifting, 20 is a screw for traversing,
21 is a traversing drive device, 23 is an elevating member, 25 is an operating transformer, 26 is a steel pipe detector, and 27 is an elevating drive device control device.
Claims (1)
る方法において、タブ板１から離れた位置の管端
部に切断トーチ２を対向させ、次いでその位置か
ら切断トーチ２を管端面周囲方向に移動させると
同時に切断を開始してタブ板１を切断除去するこ
とを特徴とするUO鋼管のタブ板切断方法。1 In a method of cutting a tab plate of a UO steel pipe with a cutting torch, the cutting torch 2 is placed opposite the tube end at a position away from the tab plate 1, and then the cutting torch 2 is moved from that position in the direction around the tube end surface. A method for cutting a tab plate of a UO steel pipe, characterized by starting cutting at the same time and cutting and removing the tab plate 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14607984A JPS6127168A (en) | 1984-07-16 | 1984-07-16 | Method for cutting tab plate of uo steel pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14607984A JPS6127168A (en) | 1984-07-16 | 1984-07-16 | Method for cutting tab plate of uo steel pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6127168A JPS6127168A (en) | 1986-02-06 |
| JPS649109B2 true JPS649109B2 (en) | 1989-02-16 |
Family
ID=15399634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14607984A Granted JPS6127168A (en) | 1984-07-16 | 1984-07-16 | Method for cutting tab plate of uo steel pipe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6127168A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6046218A (en) * | 1996-03-15 | 2000-04-04 | Ss Pharmaceutical Co., Ltd. | Pyridine derivative and medicament containing the same as an effective ingredient |
-
1984
- 1984-07-16 JP JP14607984A patent/JPS6127168A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6127168A (en) | 1986-02-06 |
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