JPH05154556A - Device for straightening end surface of tube - Google Patents
Device for straightening end surface of tubeInfo
- Publication number
- JPH05154556A JPH05154556A JP34952791A JP34952791A JPH05154556A JP H05154556 A JPH05154556 A JP H05154556A JP 34952791 A JP34952791 A JP 34952791A JP 34952791 A JP34952791 A JP 34952791A JP H05154556 A JPH05154556 A JP H05154556A
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- tube
- chock
- rolls
- roll
- 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.)
- Granted
Links
Landscapes
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、パイプ端面の矯正装置
に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a straightening device for an end surface of a pipe.
【０００２】[0002]
【従来の技術】従来はパイプ端面の内側にパイプと偏心
したポンチを挿入し、外周にパイプと同心の円環ガイド
を嵌挿し、これら円環とポンチでパイプを挟持した状態
で、これらを一体的に回転させていた。即ち、矯正すべ
きパイプの中心軸線に同心で、該パイプより離れた位置
に設けられた回転軸と、該回転軸の端面に固定された円
板状ホルダと、該円板状ホルダの端面に固定された第１
円環ホルダと、この内側に回転自在に取り付けられて、
前記中心軸線に偏心したポンチと、前記第１円環ホルダ
の端面に固定された第２円環ホルダと、この内側に回転
自在に取り付けられて、前記中心軸線に同心の円環ガイ
ドからなる矯正装置が使用されていた。2. Description of the Related Art Conventionally, a punch eccentric to the pipe is inserted inside the end face of the pipe, an annular guide concentric with the pipe is fitted around the outer periphery of the pipe, and the pipe is sandwiched between the annular ring and the punch, and they are integrated. I was rotating. That is, a rotary shaft that is concentric with the central axis of the pipe to be corrected and that is provided away from the pipe, a disc-shaped holder fixed to the end face of the rotary shaft, and an end face of the disc-shaped holder. Fixed first
It is attached to the ring holder and rotatably inside this,
A correction comprising a punch eccentric to the central axis, a second annular holder fixed to an end surface of the first annular holder, and a rotatably mounted inside of the second annular holder, the annular guide being concentric with the central axis. The device was in use.
【０００３】[0003]
【発明が解決しようとする課題】このような装置では、
パイプがプレスなどで切断され、局部変形（内径側に局
部的に凹なる変形）が発生した場合には矯正可能である
が、滑らかな変形（砥石切断等による楕円状の変形）
は、パイプのスプリングバックにより（特にステンレス
パイプ）矯正不可能であった。従って、木づちによる手
作業で矯正されていた。SUMMARY OF THE INVENTION In such a device,
If the pipe is cut with a press or the like and local deformation (deformation that locally concaves on the inner diameter side) occurs, it can be corrected, but smooth deformation (elliptical deformation due to cutting with a grindstone, etc.)
Was uncorrectable due to the springback of the pipe (especially stainless pipe). Therefore, it was manually corrected by a wood hammer.
【０００４】本発明は上記課題を解決し、局部変形およ
び滑らかな変形を矯正できるようにしたパイプ端面の矯
正装置を提供することを目的とする。SUMMARY OF THE INVENTION It is an object of the present invention to solve the above problems and provide a straightening device for an end surface of a pipe which can correct local deformation and smooth deformation.
【０００５】[0005]
【課題を解決するための手段】上記課題を解決するた
め、本発明の構成は次のとおりとする。即ち、矯正すべ
きパイプの中心軸線に同心で、該パイプより離れた位置
に設けられた回転軸と、該回転軸の端面に固定された枠
と、該枠に回転自在に取り付けられ、前記中心軸線に直
交する第１送りねじ棒および第２送りねじ棒と、これら
ねじ棒に螺合され、かつ、両端が前記枠に摺動案内され
た第１チョックおよび第２チョックと、前記第１チョッ
クに回転自在に装着された第１ロールと、前記第２チョ
ックに回転自在に装着され、前記第１ロールを頂点とし
た２等辺三角形の底辺角を構成する２個の第２ロールと
を含むことである。In order to solve the above problems, the structure of the present invention is as follows. That is, a rotary shaft that is concentric with the central axis of the pipe to be corrected and that is located away from the pipe, a frame that is fixed to the end face of the rotary shaft, and is rotatably attached to the frame, A first feed screw rod and a second feed screw rod which are orthogonal to the axis, a first chock and a second chock screwed to these screw rods, and both ends of which are slidably guided by the frame, and the first chock. A first roll rotatably attached to the second chock, and two second rolls rotatably attached to the second chock and forming the base angle of an isosceles triangle with the first roll as the apex. Is.
【０００６】[0006]
【作用】第１ロールと第２ロールとの間隔を広げた状態
で、回転軸と枠をパイプ側に前進させ、第１ロールをパ
イプ内側に、第２ロールをパイプ外側に位置させた状態
で、第１，第２送りねじ棒を回して、第１，第２ロール
を互いに近付け、それらの間にパイプ周壁の一部を挟
む。次に回転軸を回すと、パイプ周壁の凹凸はなくな
り、ほぼ真円に矯正される。With the gap between the first roll and the second roll widened, the rotary shaft and the frame are advanced to the pipe side, and the first roll is positioned inside the pipe and the second roll is positioned outside the pipe. , The first and second feed screw rods are turned to bring the first and second rolls close to each other, and a part of the pipe peripheral wall is sandwiched between them. Next, when the rotating shaft is turned, the irregularities on the peripheral wall of the pipe are removed and the pipe is corrected to a nearly perfect circle.
【０００７】[0007]
【実施例】以下に本発明の実施態様を図面に示す一実施
例にもとづき説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below based on an embodiment shown in the drawings.
【０００８】図１，２において、チャック本体９ａで、
ゴムなどの傷付けずに滑り止めの作用のある弾性ライニ
ング９ｂを介して、固定された矯正すべきパイプＡの中
心軸線に同心で、該パイプより離れた位置に回転軸１が
設けられ、該回転軸の端面に枠２が固定される。該枠２
は浅底箱形を呈し、円板状底壁２ａ，２つのたて壁２ｂ
および２つのよこ壁２ｃよりなる。1 and 2, the chuck body 9a is
A rotary shaft 1 is provided at a position concentric with the central axis of the fixed pipe A to be corrected and apart from the pipe through an elastic lining 9b having a non-slip action such as rubber, which prevents slippage. The frame 2 is fixed to the end surface of the shaft. The frame 2
Has a shallow box shape, and has a disk-shaped bottom wall 2a and two vertical walls 2b.
And two horizontal walls 2c.
【０００９】該枠のよこ壁２ｃ，２ｃ間に前記中心軸線
に直交する第１送りねじ棒３および第２送りねじ棒４が
互いに平行、かつ、間隔を存して、回転自在に取り付け
られる。第１チョック５および第２チョック６が、これ
らねじ棒３，４に螺合され、かつ、前記枠のたて壁２
ｂ，２ｂ間に摺動案内される。また、第１，第２チョッ
ク５，６は各々融通孔５ａ，６ａで第２，第１ねじ棒
４，３を貫通させている。A first feed screw rod 3 and a second feed screw rod 4 which are orthogonal to the central axis are rotatably mounted between the horizontal walls 2c, 2c of the frame so as to be parallel to each other and spaced apart from each other. A first chock 5 and a second chock 6 are screwed into these screw rods 3 and 4, and the frame vertical wall 2
It is slidably guided between b and 2b. Further, the first and second chocks 5 and 6 respectively penetrate the second and first screw rods 4 and 3 through the through holes 5a and 6a.
【００１０】前記第１チョック５に第１ロール７，第２
チョック６に第２ロールの２個８，８が前記中心軸線に
平行な軸回りに回転自在に装着される。前記第１ロール
７を頂点とした２等辺三角形の底辺角を構成するよう
に、２個の第２ロール８，８が配置される。即ち、第１
ロール７の軸はねじ軸３，４に直交し、第２ロール８，
８は互いにねじ軸３，４に関し対称位置にある。A first roll 7 and a second roll are provided on the first chock 5.
Two second rolls 8, 8 are mounted on the chock 6 so as to be rotatable about an axis parallel to the central axis. Two second rolls 8, 8 are arranged so as to form a base angle of an isosceles triangle having the first roll 7 as an apex. That is, the first
The axis of the roll 7 is orthogonal to the screw axes 3 and 4, and the second roll 8
8 are symmetrical to each other with respect to the screw axes 3 and 4.
【００１１】以上において作動状態を説明する。第１ロ
ール７と第２ロール８，８との間隔を広げた状態で、回
転軸１と枠２をパイプＡ側に前進させ、第１ロール７を
パイプ内側に、第２ロール８，８をパイプ外側に位置さ
せた状態で、第１，第２送りねじ棒３，４を回して、第
１，第２ロール７，８を互いに近付け、それらの間にパ
イプ周壁の一部を挟む。次に回転軸１を回すと、パイプ
周壁の凹凸はなくなり、ほぼ真円に矯正される。The operation state will be described above. With the gap between the first roll 7 and the second rolls 8 and 8 widened, the rotary shaft 1 and the frame 2 are advanced to the pipe A side, the first roll 7 is placed inside the pipe, and the second rolls 8 and 8 are placed. In the state of being located outside the pipe, the first and second feed screw rods 3 and 4 are turned to bring the first and second rolls 7 and 8 closer to each other, and a part of the pipe peripheral wall is sandwiched between them. Next, when the rotating shaft 1 is rotated, the irregularities on the peripheral wall of the pipe are removed and the pipe is corrected to a substantially perfect circle.
【００１２】次に実験結果を表に示す。テストピースは
ステンレスパイプの焼鈍したもので、ＪＩＳによる標準
外径Ｄ0＝２１６．３ｍｍ，厚さｔ＝４ｍｍであった。
また、ロールの長さは７０ｍｍであった。Next, the experimental results are shown in the table. The test piece was an annealed stainless steel pipe, and had a standard outer diameter D 0 of 216.3 mm and a thickness t of 4 mm according to JIS.
The length of the roll was 70 mm.
【００１３】[0013]
【表１】 [Table 1]
【００１４】この表において、Ｌ＝パイプ端からの距離
（ｍｍ）、Ｄｘ，Ｄｙ＝その位置での直径上で直交する
２方向の外径（ｍｍ）、Ｄｘ´，Ｄｙ´＝Ｄｘ，Ｄｙよ
り円周方向４５度ずれたところの直交２方向の外径（ｍ
ｍ）、誤差＝Ｄｘ−Ｄｙ／Ｄ0×１００（％），Ｄｘ´
−Ｄｙ´／Ｄ0×１００（％）である。In this table, L = distance from pipe end (mm), Dx, Dy = outer diameter (mm) in two directions perpendicular to each other at the position, Dx ', Dy' = Dx, Dy Outer diameter in two orthogonal directions (m
m), error = Dx−Dy / D 0 × 100 (%), Dx ′
It is −Dy ′ / D 0 × 100 (%).
【００１５】この表から、ＪＩＳの許容誤差１％である
から、Ｌ＝０の位置からＬ＝４０−５０の範囲で本発明
による矯正効果が表れていることが解る。From this table, it is understood that the correction effect according to the present invention is exhibited in the range of L = 40-50 from the position of L = 0 because the JIS allowable error is 1%.
【００１６】本発明は前記した実施例や実施態様に限定
されず、特許請求の精神および範囲を逸脱せずに種々の
変形を含む。The present invention is not limited to the examples and embodiments described above, but includes various modifications without departing from the spirit and scope of the claims.
【００１７】[0017]
【発明の効果】本発明の構成により、パイプの局部変形
および滑らかな変形を矯正できることとなった。With the structure of the present invention, local deformation and smooth deformation of the pipe can be corrected.
【図１】本発明の一実施例の正面図である。FIG. 1 is a front view of an embodiment of the present invention.
【図２】図１のII−II断面図である。FIG. 2 is a sectional view taken along the line II-II in FIG.
Ａ パイプ １ 回転軸 ２ 枠 ２ａ 底壁 ２ｂ たて壁 ２ｃ よこ壁 ３ 第１送りねじ棒 ４ 第２送りねじ棒 ５ 第１チョック ６ 第２チョック ７ 第１ロール ８ 第２ロール ９ａ チャック本体 ９ｂ ゴムライニング A pipe 1 rotating shaft 2 frame 2a bottom wall 2b vertical wall 2c horizontal wall 3 first feed screw rod 4 second feed screw rod 5 1st chock 6 2nd chock 7 1st roll 8 2nd roll 9a chuck body 9b rubber Lining
───────────────────────────────────────────────────── フロントページの続き (72)発明者 小西 咲三 大阪市西区立売堀３丁目３番１号 小西咲 株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Sakuzo Konishi 3-3-1, Sellohori, Nishi-ku, Osaka City Saki Konishi Co., Ltd.
Claims (1)
該パイプより離れた位置に設けられた回転軸と、該回転
軸の端面に固定された枠と、該枠に回転自在に取り付け
られ、前記中心軸線に直交する第１送りねじ棒および第
２送りねじ棒と、これらねじ棒に螺合され、かつ、両端
が前記枠に摺動案内された第１チョックおよび第２チョ
ックと、前記第１チョックに回転自在に装着された第１
ロールと、前記第２チョックに回転自在に装着され、前
記第１ロールを頂点とした２等辺三角形の底辺角を構成
する２個の第２ロールとを含むことを特徴とするパイプ
端面の矯正装置。1. Concentric with the central axis of the pipe to be straightened,
A rotary shaft provided at a position distant from the pipe, a frame fixed to an end surface of the rotary shaft, a first feed screw rod and a second feed rotatably attached to the frame and orthogonal to the central axis. Screw rods, a first chock and a second chock screwed to these screw rods, and both ends of which are slidably guided by the frame, and a first chock rotatably attached to the first chock.
A straightening device for a pipe end surface, comprising: a roll; and two second rolls rotatably mounted on the second chock and forming a base angle of an isosceles triangle having the first roll as an apex. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34952791A JP2881590B2 (en) | 1991-12-06 | 1991-12-06 | Pipe end straightening device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34952791A JP2881590B2 (en) | 1991-12-06 | 1991-12-06 | Pipe end straightening device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05154556A true JPH05154556A (en) | 1993-06-22 |
| JP2881590B2 JP2881590B2 (en) | 1999-04-12 |
Family
ID=18404330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP34952791A Expired - Lifetime JP2881590B2 (en) | 1991-12-06 | 1991-12-06 | Pipe end straightening device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2881590B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4864764A (en) * | 1988-05-21 | 1989-09-12 | Shimano Industrial Company Limited | Fishing reel fixture |
| KR101523870B1 (en) * | 2011-04-08 | 2015-05-28 | 신닛떼쯔 수미킨 엔지니어링 가부시끼가이샤 | Pipe material correction apparatus and pipe material correction method |
| CN109604381A (en) * | 2018-12-29 | 2019-04-12 | 武昌船舶重工集团有限公司 | A kind of corrector and its straightening method for tubular plate |
| CN113369340A (en) * | 2021-06-23 | 2021-09-10 | 襄阳一福坦铁路轴承有限公司 | Bearing seal cover shaping device |
| CN113967678A (en) * | 2021-09-13 | 2022-01-25 | 重庆望江特种装备有限公司 | Steel pipe rounding device for special equipment machining |
-
1991
- 1991-12-06 JP JP34952791A patent/JP2881590B2/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4864764A (en) * | 1988-05-21 | 1989-09-12 | Shimano Industrial Company Limited | Fishing reel fixture |
| KR101523870B1 (en) * | 2011-04-08 | 2015-05-28 | 신닛떼쯔 수미킨 엔지니어링 가부시끼가이샤 | Pipe material correction apparatus and pipe material correction method |
| CN109604381A (en) * | 2018-12-29 | 2019-04-12 | 武昌船舶重工集团有限公司 | A kind of corrector and its straightening method for tubular plate |
| CN109604381B (en) * | 2018-12-29 | 2020-06-09 | 武昌船舶重工集团有限公司 | Shape correcting device for cylindrical plate and shape correcting method thereof |
| CN113369340A (en) * | 2021-06-23 | 2021-09-10 | 襄阳一福坦铁路轴承有限公司 | Bearing seal cover shaping device |
| CN113967678A (en) * | 2021-09-13 | 2022-01-25 | 重庆望江特种装备有限公司 | Steel pipe rounding device for special equipment machining |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2881590B2 (en) | 1999-04-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 19981215 |