JPS62157711A - Tube internal weld bead removing device - Google Patents

Tube internal weld bead removing device

Info

Publication number
JPS62157711A
JPS62157711A JP29696885A JP29696885A JPS62157711A JP S62157711 A JPS62157711 A JP S62157711A JP 29696885 A JP29696885 A JP 29696885A JP 29696885 A JP29696885 A JP 29696885A JP S62157711 A JPS62157711 A JP S62157711A
Authority
JP
Japan
Prior art keywords
bead
weld bead
cutting
tilting head
copying roller
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
Application number
JP29696885A
Other languages
Japanese (ja)
Other versions
JPH0466643B2 (en
Inventor
Yoshiaki Fukukawa
福川 賀皓
Atsushi Nishida
西田 敦司
Tamotsu Nishioka
西岡 保
Akio Takemori
竹森 昭男
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.)
KASHIWARA KIKAI SEISAKUSHO KK
Nippon Steel Corp
Original Assignee
KASHIWARA KIKAI SEISAKUSHO KK
Sumitomo Metal Industries Ltd
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 KASHIWARA KIKAI SEISAKUSHO KK, Sumitomo Metal Industries Ltd filed Critical KASHIWARA KIKAI SEISAKUSHO KK
Priority to JP29696885A priority Critical patent/JPS62157711A/en
Priority to CA000526214A priority patent/CA1332276C/en
Priority to EP86310122A priority patent/EP0228905B1/en
Priority to US06/945,960 priority patent/US4729502A/en
Publication of JPS62157711A publication Critical patent/JPS62157711A/en
Publication of JPH0466643B2 publication Critical patent/JPH0466643B2/ja
Granted legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B5/00Turning-machines or devices specially adapted for particular work; Accessories specially adapted therefor
    • B23B5/16Turning-machines or devices specially adapted for particular work; Accessories specially adapted therefor for bevelling, chamfering, or deburring the ends of bars or tubes

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Milling Processes (AREA)
  • Milling, Broaching, Filing, Reaming, And Others (AREA)

Abstract

PURPOSE:To allow bead removal excellent in workability and profitability by providing a mobile base movable in parallel with an internal weld bead, a pressing means, the second mobile base, a tilting head, a rotary cutting tool and a copying roller. CONSTITUTION:The inclination angle theta of the second mobile base 14 is set by a screw rod 21 so that the inner radius around a bead section 1' coincides with the circular radius of the bead cut face. Next, the height of a slide base 31 is set by a screw head 33, the height of a copying roller 32 against a rotary cutting tool 27 is set, and the depth of cut to the bead 1' is set. Then, a lock bolt 24 and a lock nut 34 are tightened and fixed respectively. A boom 3 is inserted into a tube and cramped, a tilting head 26 is advanced by a cylinder 16 while the rotary cutting tool 27 is rotated by a motor 29, and when the copying roller 32 is brought into contact with the inner face and reaches the predetermined depth of cut, cutting is performed by the tilting head 26. Machining excellent in accuracy, workability and profitability can be safely performed via the tilting head and copying roller.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 この発明は溶接を終えたストレー)シー4管(7)溶接
部内面に生じる溶接ビードを回転バイトにて切削除去す
る装置に関する。
DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to an apparatus for cutting and removing a weld bead formed on the inner surface of a welded portion of a straight seam pipe (7) after welding using a rotating tool.

〔従来の技術〕[Conventional technology]

ストレートシーム溶接されm大径管の管内面溶接ビード
は、管全周縦溶接する際のクフンプ等の障害となるため
、少なくとも管端部分については確実な除去を必要とす
る場合が多い。この除去装置としては、例えば特開昭5
8−181580号公報および実開昭59−17105
6号公報に記載され九装置が公知であるが、ストレート
シーム溶接管は完全な真円ではなく、また真直性も低く
、上記装置では完全に対処できない。その理由けたのと
おりである。
The weld bead on the inner surface of a large-diameter pipe that is straight seam welded becomes an obstacle such as clumps when longitudinally welding the entire circumference of the pipe, so it is often necessary to reliably remove at least the end portion of the pipe. As this removal device, for example,
Publication No. 8-181580 and Utility Model Application No. 17105/1983
Although nine devices are known as described in Japanese Patent No. 6, straight seam welded pipes are not perfectly circular and have low straightness, so the above devices cannot completely handle the problem. The reason is as stated.

〔発明が解決しようとする問題点〕[Problem that the invention seeks to solve]

特開昭58−181580号公報に記載された装置は、
第4図ぼ)に示すように、溶接管(1)の内面溶接ビー
ド(1)に回転軸(7)を平行させた口伝砥石(ト)を
管周方向に揺動させながら回転させて、溶接ビード(1
)全除去するものである。まt、実開昭59−1710
56号に記載の装置は、第4図(ロ)に示すように、溶
接ビード(1)に対して回転軸(至)を直角に設けた回
転砥石(至)でビード除去を行うものである。
The device described in Japanese Patent Application Laid-Open No. 58-181580 is
As shown in Fig. 4(b), an oral grindstone (g) with a rotating shaft (7) parallel to the inner weld bead (1) of the welded pipe (1) is rotated while swinging in the circumferential direction of the pipe. Weld bead (1
) will be completely removed. Mat, Jitsukai 59-1710
The device described in No. 56, as shown in Figure 4 (b), removes the bead with a rotating grindstone (to) whose rotational axis (to) is set at right angles to the weld bead (1). .

一方、溶接管(1)は第5図ば)(ロ)に示すように、
完全な真円、真直ではない。ビード除去の対象となる管
端部に限って言えば、梨形の軸横断面形状を有し、軸群
断面形状は溶接ビード(1)の側が外側へ反υかえるの
が一般的である。ま几、これらの順向は管毎に大小があ
るのみならず、真円、真直化を主目的とする拡管工程以
前(ビード除去の段階)では特に著しい。
On the other hand, the welded pipe (1) is as shown in Figure 5 (b) and (b).
Perfectly round, not straight. As far as the end of the pipe is concerned, it has a pear-shaped axial cross-sectional shape, and the axial group cross-sectional shape is generally curved outward on the weld bead (1) side. However, these forward directions not only vary in size from tube to tube, but are especially noticeable before the tube expansion process (bead removal stage) whose main purpose is to make the tubes perfect and straight.

このような溶接管(1)に対して第4面(イ)―)の装
置を用い定場合、前者の装置では溶接管(1)の梨形が
顕著な場合に溶接ビード(1)両脇の母材部分を削る危
険があり、この危険性は回転砥石(ト)が大径なほど大
きい。言うまでもないが、溶接管(1)では肉厚下限が
定められており、溶接ビード(1)やその近傍は応力集
中を避けるため、特に厳密な肉厚管理が要求されるとこ
ろである。更に、回転砥石(至)Kは摩耗が生じ、その
摩耗に応じて溶接ビード(1)に対する回転砥石(ト)
の相対位置を逐一変化させなければならない煩雑さ75
メある。まt1回伝砥石(至)は研削によって粉塵や振
動を生じ、近接機器の機械的M度を低下させる問題もあ
る。更にまた、回転砥石(ト)では研削能率を上げるた
めに大径化、大粒化を必要とするが、このような砥石は
研削面精度全低下させると同時に、前述した母材切削の
危険性を生じる。
When using the device shown in the fourth surface (a)-) for such a welded pipe (1), the former device will remove the weld bead (1) on both sides if the welded pipe (1) is noticeably pear-shaped. There is a risk of scraping the base material, and this risk increases as the diameter of the rotating whetstone increases. Needless to say, a lower limit of the wall thickness is determined for the welded pipe (1), and particularly strict control of the wall thickness is required at the weld bead (1) and its vicinity in order to avoid stress concentration. Furthermore, the rotary whetstone (to) K wears out, and depending on the wear, the rotary whetstone (to) against the weld bead (1)
The complexity of having to change the relative position of
There is a mail. There is also the problem that the one-time transmission grindstone generates dust and vibrations due to grinding, which lowers the mechanical M degree of nearby equipment. Furthermore, rotating whetstones (G) require larger diameters and larger grains to increase grinding efficiency, but such whetstones completely reduce the accuracy of the grinding surface and at the same time reduce the risk of cutting the base material mentioned above. arise.

第4図(g)に示す後者の装置も母材切削の危険性を回
避する定めには小径の回転砥石(至)が必要であシ、小
径の砥石では研削能率が低下する等、前者の装置と同じ
問題を有する。
The latter device shown in Figure 4 (g) also requires a small-diameter rotary grindstone (to) to avoid the danger of cutting the base material, and a small-diameter grindstone reduces grinding efficiency, etc. Having the same problem with the device.

〔問題点を解決するための手段〕[Means for solving problems]

本発明はこれらの問題点を全て解決し得る管内面溶接ピ
ード除去装置全提供するもので、その特徴とするところ
は実施例図面第1図イ)(ロ)に示すように、内面溶接
ビードを除去しようとする溶接管(1)の内部にあって
前記内面溶接ビード(1)に対して相対平行移動する第
1の移動ペース(5)と、この第1の移染ペース(5)
に前記内面溶接ビード(1)に対し押圧手段QQ’にも
って進退すべく取付けた第2の移動ベースα弔と、この
第2の移動ベースα弔に前記第1の移動ペース(5)の
移動方向に前項または後傾すべく取付けた煩動ヘッド(
財)と、この煩動ヘッド(至)に前記内面溶接ビード(
1)に向けて取付ffN回転バイト(イ)と、この回転
パイ)6’?)に近接して回転パイ)Uとの相対突出長
さが調整できるより前記煩動ヘッド0→に取付けた倣い
ローラ(至)とを備える点にある。
The present invention provides a complete tube inner weld bead removal device that can solve all of these problems, and its features are as shown in FIGS. a first moving pace (5) located inside the welded pipe (1) to be removed and moving in parallel relative to the inner weld bead (1); and this first migration pace (5)
A second moving base α is attached to move forward and backward with the pressing means QQ′ with respect to the inner weld bead (1), and the first moving pace (5) is moved to this second moving base α. The moving head installed to tilt forward or backward in the direction (
and the inner weld bead (to) on this moving head (to).
1) Install ffN rotating bit (a) and this rotating pie) 6'? ) is provided with a copying roller attached to the movable head 0→ whose relative protrusion length with respect to the rotating pie U) can be adjusted.

〔作用〕[Effect]

このビード除去装置は基本的には、溶接管(1)の内部
にブーム(3)全挿入しておいて、押圧手段αQにより
第2の移動ベースα褐ヲ内面溶接ビード(1)に向けて
押出し、溶接管(1)の内面との間を倣いローラ0のに
よシ規制した状態で回転バイト@を回転させながら第1
の移動ベース(5)ヲ内面溶接ビード(1)に沿って移
動させることによシ、内面溶接ビード(1)’e線除去
て行くものであるが、ビード研削工具として回転バイト
@を使用しているため1、摩耗が少なく粉塵や振動も事
実上止じず、まt、小径で研削能力に優れるばかシでな
く、傾動ヘッド(ハ)の傾斜角θを変えることによシ内
面溶接ビード(1)の切削円弧半径を自由に調整できる
。すなわち、傾動ヘッド0均を直立させ次状態では内面
溶接ビード(1)の切削面は平面であるが、煩動ヘッド
(ト)に傾斜角θを与えることによシビード切削面はビ
ード長手方向から見て円弧となシ、その半径は傾斜角θ
が大きくなるにし九がって小さくなる。そして、この円
弧半径調整機能は回転バイト(イ)が本来的に小径であ
ることとあいまって、ビードとその近傍の肉厚管理を非
常に厳密なものとする。
This bead removal device basically involves inserting the entire boom (3) inside the welding pipe (1) and moving the second movable base α towards the inner weld bead (1) using the pressing means αQ. While extruding and copying between the inner surface of the welded pipe (1) and the roller 0, while rotating the rotary tool @, the first
By moving the moving base (5) along the inner weld bead (1), the inner weld bead (1)'e wire is removed, but a rotating bit @ is used as a bead grinding tool. 1) There is little wear and dust and vibrations are virtually unstoppable, and the internal weld bead is not only small in diameter but also has excellent grinding ability, but by changing the inclination angle θ of the tilting head (c). (1) The cutting arc radius can be adjusted freely. In other words, the cutting surface of the inner weld bead (1) is flat in the next state when the tilting head (0) is upright, but by giving the tilting head (g) an inclination angle θ, the cutting surface of the weld bead (1) is flat from the longitudinal direction of the bead. It looks like a circular arc, its radius is the angle of inclination θ
As it gets bigger, it gets smaller. This arc radius adjustment function, combined with the fact that the rotary cutting tool (A) is inherently small in diameter, makes the thickness control of the bead and its vicinity extremely strict.

〔実施例〕〔Example〕

第1(8)仔)(ロ)は不考案を実施し几管内面溶接ビ
ード除去装置の一例についてその構造全示す演断平面図
(同図イ)および縦断側面図(同因口)である。
Part 1 (8) (b) is a cross-sectional plan view (a) and a longitudinal side view (a) showing the entire structure of an example of an unconventional device for removing weld beads on the inner surface of a tube. .

同図によれば、溶接管(1)はその溶接部を上にし次状
態で横たわっておシ、(1)は管内面溶接ビード、<2
1はタブ板である。管内に挿入されるブーム(3)は側
面コ字形フレームを溶接管(1)の上側管端部に管内外
よシフランプして、その上顎部を管内に挿入する形式の
もので、(4)は溶接管(1)の内面側に当接する下側
クランパーを示している。上側クランパーおよびコ字形
フレームの上顎部ならびに下η部との連結部分は説明の
便宜上、図示を省略しである。
According to the figure, the welded pipe (1) is lying with its welded part facing upward, and (1) is a welded bead on the inner surface of the pipe, <2
1 is a tab plate. The boom (3) inserted into the pipe is of a type in which a side U-shaped frame is attached to the upper end of the welded pipe (1) from inside and outside the pipe, and its upper jaw is inserted into the pipe. The lower clamper is shown in contact with the inner surface of the welded pipe (1). For convenience of explanation, the upper clamper, the upper jaw portion of the U-shaped frame, and the connecting portion with the lower η portion are not shown.

ブーム(3)Kはその長手方向に移動可能に第1の移動
ベース(5)が取付けられており、その青臭側部分にブ
ラケット(6)ヲ備えている。以後、青臭側を前方、そ
の度対側を後方と称する。ブーム(3)の前端部にはモ
ータ(7)が取付けられ、その回転軸に固着し友ギア(
8)がギア(9)と保合する。ギア(9)はその胴部(
9′)がベアリング(10’) ?介してブーム(3)
に固着され几軸受00に支持されるとともに、胴部(9
)の内側にナツトαυを固定的に嵌合させである。ナツ
ト(ロ)にはブーム(3)に平行なスクリュウ軸(6)
が螺合し、その後端部が、Mlの移動ベース(5)の前
部に取付は比ブラケット(6)に否回転に係着される。
A first movable base (5) is attached to the boom (3) K so as to be movable in its longitudinal direction, and a bracket (6) is provided on the grassy side of the boom (3). Hereinafter, the grassy side will be referred to as the front, and the opposite side will be referred to as the rear. A motor (7) is attached to the front end of the boom (3), and is fixed to its rotating shaft and connected to a companion gear (
8) is engaged with gear (9). Gear (9) has its body (
9') is the bearing (10')? boom through (3)
It is fixed to the body part (9) and supported by the bearing 00.
) is fixedly fitted inside the nut αυ. The nut (b) has a screw shaft (6) parallel to the boom (3).
are screwed together, and the rear end is fixed to the front part of the movable base (5) of Ml and is non-rotatably engaged with the ratio bracket (6).

第1の移動ベース(5)の後端部にはアリ溝(13を介
して第2の移動ベースα→が上下に移動可能に取付けら
れておシ、その上部前方に張出した腕部αGに、第1の
移動ベース(5)の後部に立設した押圧手段としてのシ
リンダー〇〇〇ロッドaη先端が係着される。
A second movable base α→ is attached to the rear end of the first movable base (5) via a dovetail groove (13) so as to be movable up and down. , the tip of the cylinder 〇〇〇rod aη, which serves as a pressing means, is erected at the rear of the first movable base (5).

第2の移動ベースαりは後方に向って開放された平面コ
字形のブラケット構造で、これに傾動ヘッド(至)が軸
α場にて後方へ頌斜するよう支持されている。
The second movable base α has a U-shaped planar bracket structure that is open toward the rear, and the tilting head is supported on this so as to be tilted backward in the axis α field.

Ql)は第2の移動ベースα弔の後方下部に張出した腕
(イ)に垂直に螺合するスクリュウロッドで、その上端
が、傾動ヘッド0棒の側方に張出し之腕@の下面に当接
して、傾動ヘッド01の傾斜角(ωを調整する。
Ql) is a screw rod that is vertically screwed into the arm (A) that extends from the rear lower part of the second moving base α, and its upper end touches the lower surface of the arm that extends from the side of the tilting head 0 rod. Then, the tilt angle (ω) of the tilting head 01 is adjusted.

また、(ハ)は第2の移動ベース(141の側板部に刻
設され友ガイド孔(ハ)を貫通し傾動ヘッドa呻にねじ
込まれる傾斜角(ののロックボルトである。
Further, (c) is a lock bolt at an inclined angle that is carved into the side plate of the second movable base (141), passes through the companion guide hole (c), and is screwed into the tilting head a.

傾動ヘッド(至)の上部にはチャック(イ)が上方よシ
差込まれ、これに上向きに回転バイト(財)が装着され
る。チャック翰は、スクリュラムロッド(ホ)にて下方
へ引くことによフ頌勤ヘッド(至)に固定される。
A chuck (a) is inserted upward into the top of the tilting head (to), and a rotating tool is attached to it facing upward. The chuck holder is fixed to the screw head (to) by pulling it downward with the screw ram rod (e).

詳細図示省略したが、チャック(ホ)は傾動ヘッド(至
)の内部においてベアリングによシ支持されておシ、そ
の内輪が、傾動ヘッド(ハ)の下部に固着されtモータ
翰の回転軸とギア結合して、チャック(ホ)および回転
バイト@ヲ回転させる。
Although not shown in detail, the chuck (e) is supported by a bearing inside the tilting head (to), and its inner ring is fixed to the lower part of the tilting head (c) and connects to the rotating shaft of the motor. Connect the gears and rotate the chuck (E) and rotating tool @.

回転バイト勾はスロー7ウエイタイプの超硬チップを円
柱状ヘッド端面の円周上に複数個(通常3個)取フ付け
たもので、具体的にはエンドミル、マイスカッターと称
される物等である。
A rotary cutting tool is a slow 7-way type carbide tip with multiple (usually 3) attachment points attached to the circumference of the end face of a cylindrical head.Specifically, it is an end mill, a mace cutter, etc. It is.

回転バイト(イ)の直径は除去しよりとする内面溶接ビ
ードの巾に対して決められ、ビード巾より小さいとビー
ドの削り残しが生じ、ま之ビード巾の2倍を超えるとビ
ード両脇の母材部を削シ込む危険が生じるので、ビード
巾の1〜2倍の範囲が連節である。
The diameter of the rotating tool (A) is determined based on the width of the inner weld bead that is to be removed.If it is smaller than the bead width, there will be uncut parts of the bead, and if it exceeds twice the width of the bead, it will damage the sides of the bead. Since there is a risk of cutting the base material, the range of 1 to 2 times the bead width is the joint.

回転バイト(イ)の回転数は無段階調節可能とし、スト
レートシーム溶接管の材質、ビードの大きさ等に応じて
最適回転数を設定しうるようにするのがよい。
It is preferable that the rotational speed of the rotating tool (A) is steplessly adjustable so that the optimum rotational speed can be set according to the material of the straight seam welded pipe, the size of the bead, etc.

傾動ヘッド(財)にはまた、その前面にアリ溝(至)を
介してスライドベース01)が摺動可能に取付けられ、
その上部に前後方向の倣いローラ(2)が、回転バイ1
71と干渉することなくこれに近接して取付けられてい
る。スライドベース0υの下部には、傾動ヘッド(至)
に対して上下方向の位置決めがなされ九スクリュワロツ
ド(至)の上部が螺合し、これ全回転させることによシ
倣いローラ(イ)の回転バイト(財)に対する相対高さ
が調節できるよりになっている。01はスクリュウロッ
ド(至)のロックナツトである。
A slide base 01) is also slidably attached to the tilting head via a dovetail groove on the front surface thereof,
A copying roller (2) in the front-rear direction is mounted on the upper part of the rotary bi-1.
It is mounted close to 71 without interfering with it. At the bottom of the slide base 0υ is a tilting head (towards).
The upper part of the nine screw rods (to) are screwed together, and by rotating them fully, the relative height of the copying roller (a) to the rotating tool can be adjusted. ing. 01 is the lock nut of the screw rod (end).

倣いローラ(至)と溶接ビード(1)および回転バイト
(財)との位置関係を第2図の背面図(同図イ)および
平面図(同図口)によシ今少し詳しく説明すると、倣い
ローフ(至)は溶接ビード(x)を跨ぐ形で左右一対設
けられている。この場合、両輪の離間距Rをビード巾に
近づけることによシ、溶接管(1)の梁形の影響ヲはと
んど受けずに一定の切込J1保つことができる。又、倣
いローラ@全回転バイト(財)に接触しない範囲で近づ
けることによシ、溶接管(1)の管端の反シ上シの影響
を事実上排除して切込量を一定に保つことができる。
The positional relationship between the copying roller (to), the welding bead (1), and the rotating tool (piece) will now be explained in a little more detail by referring to the rear view (a) and top view (a) of Fig. 2. A pair of copying loaves (to) are provided on the left and right so as to straddle the weld bead (x). In this case, by making the distance R between the two wheels close to the bead width, a constant depth of cut J1 can be maintained without being influenced by the beam shape of the welded pipe (1). In addition, by bringing the copying roller close to the full-rotation cutting tool without contacting it, the effect of the anti-cutting on the end of the welded pipe (1) is virtually eliminated and the depth of cut is kept constant. be able to.

第1図に示し念管内面ビード除去装置の動作金次に説明
する。
The operation of the device for removing beads on the inner surface of the hypothetical tube shown in FIG. 1 will now be explained.

装置を溶接管(1)の内部に挿入する前に、傾動へラド
0樽の第2の移動ベースα弔に対する傾斜角θを決める
。第3図(イ)(ロ)に示すように、この傾斜角θを変
えることによってビート切削面の円弧半径全調節できる
ので、溶接管(1)のビード部周辺の内面円弧半径にビ
ード切削面の円弧半径が一致するよう、傾斜角θを決め
る。傾斜角θの調節は、ロックボルト(ハ)Klめ、ス
クリュウロッドQυを回転させて傾斜角θを合わせた後
、ロックボルト[有]を締付けることにより行う。
Before inserting the device into the welded pipe (1), determine the tilt angle θ of the tilting barrel with respect to the second moving base α. As shown in Fig. 3 (a) and (b), by changing this inclination angle θ, the entire arc radius of the bead cutting surface can be adjusted. The inclination angle θ is determined so that the arc radii of . The inclination angle θ is adjusted by rotating the lock bolt (c) Kl and the screw rod Qυ to adjust the inclination angle θ, and then tightening the lock bolt [present].

また、傾斜角θの調節と合わせて、倣いローラ鵜の位置
決めを行う。倣いローラ(至)の回転バイト(財)に対
する相対高さは、第2図から明らかなように、溶接ビー
ド(1)への切込み深さを決定するので、ビード切削面
がその脇の母材部内面に滑らかに連続する高さに、倣い
ローラに)の位置決めを行う。これには、ロックナツト
(財)を緩め、スクリュウロッド03を回転させてスラ
イドペース01)の高さ全決め念後、ロックナツト■を
締めればよい。
In addition to adjusting the inclination angle θ, the positioning of the copying roller is also performed. As is clear from Figure 2, the relative height of the copying roller (to) with respect to the rotating tool determines the depth of cut into the weld bead (1), so that the bead cutting surface is close to the base material beside it. Position the copying roller () at a height that smoothly continues on the inner surface of the part. To do this, loosen the lock nut, rotate the screw rod 03, and after determining the full height of the slide pace 01), tighten the lock nut (2).

また、第1の移動ベース(5)はその後退限、第2の移
動ベースα荀はその下限に位置はせておく。
Further, the first movable base (5) is positioned at its retraction limit, and the second movable base α is positioned at its lower limit.

以上の準備が終ると、ブーム(3)全溶接管(1)の内
部に管軸に平行な姿勢で挿入する。挿入位置は第1図(
ロ)に示すように回転パイIf)が溶接管(1)の管端
手前のタブ板(1)下方に位置する所である。
When the above preparations are completed, the boom (3) is inserted into the fully welded pipe (1) in a position parallel to the pipe axis. The insertion position is shown in Figure 1 (
As shown in b), the rotating pie If) is located below the tab plate (1) in front of the pipe end of the welded pipe (1).

ブーム(3〕のクランプが終ると、モーター2111e
駆動して回転バイト@を回転させながら、押圧手段とし
てのシリンダー00ヲ駆動して第2の移動ベースα褐お
よび傾動ヘッド(2)を上昇させ、しかる後、ブーム(
3)前部のモータ(7)全駆動し、ナツトαηを回転さ
せることKよシスクリュウ軸σat−前進させて、これ
に連結される第1の移動ベース(5)全前進させる。こ
の一連の動作によ多回転バイト(財)は、倣いローラ翰
が溶接管(1)の内面に接触するまで、すなわち所定の
切込み深さに到達するまでは、前進しながら溶接ビード
(1)に切込んで行き、所定の切込み深さに達した後は
倣いローラ(イ)の規制によシ溶接ビード(1)両脇の
母材部内面に沿って所定の切込み深さを維持しながら溶
接ビード(1)を切削して行く・溶接ビード(1)の切
削面は、準備作業l゛ のところで述べ念ように、溶接ビード(1)両脇の母材
部内面に連続する弧状の軸債断面形状金有し、軸群断面
形状も溶接管(1)の管端の反シの有無に関係なく母材
部内面に沿つ念ものとなる。
When the boom (3) is clamped, the motor 2111e
While driving and rotating the rotary tool @, the cylinder 00 as a pressing means is driven to raise the second moving base α and the tilting head (2), and then the boom (
3) The front motor (7) is fully driven, the nut αη is rotated, the system screw shaft σat- is advanced, and the first moving base (5) connected thereto is fully advanced. Through this series of operations, the multi-rotation cutting tool moves forward and cuts the weld bead (1) until the copying roller comes into contact with the inner surface of the weld pipe (1), that is, until the predetermined depth of cut is reached. After the predetermined depth of cut is reached, the weld bead (1) is cut along the inner surface of the base material on both sides of the weld bead (1) while maintaining the predetermined depth of cut according to the regulation of the copying roller (A). Cutting the weld bead (1) - The cutting surface of the weld bead (1) is an arc-shaped axis that is continuous with the inner surface of the base metal on both sides of the weld bead (1), as mentioned in the preparatory work 1. The cross-sectional shape of the bond and the axis group cross-sectional shape also follow the inner surface of the base material, regardless of whether or not the tube end of the welded tube (1) is curved.

必要な長さの切削が終ると、シリンダー〇〇の駆動によ
シ第2の移動ペースα弔および傾動ヘッド(ト)をゆる
やかに降下させながら、切削前進を続け、溶接ビード(
1)の切削面を元の溶接ビード(1)の高さに一致させ
る。切削開始から切削終了までの回転バイ)Uの動作を
第1図(ロ)の上部に矢示する。
Once the required length has been cut, the cylinder 〇〇 is driven to slowly lower the second moving pace α and the tilting head (⑥) while continuing to move forward, cutting the weld bead (
1) Make the cut surface match the height of the original weld bead (1). The operation of rotation by (U) from the start of cutting to the end of cutting is indicated by an arrow at the top of FIG. 1(B).

切削が完全に終了すると、第1の移動ヘッド(5)は元
の後退限まで戻って次の切削に備える。また、第2の移
動ペース(14)はその下限に戻シ、回転バイト翰も停
止する。最後にビーム(3)が溶接管(1)の外に抜き
取られる。
When cutting is completely completed, the first moving head (5) returns to its original retraction limit and prepares for the next cutting. Further, the second movement pace (14) is returned to its lower limit, and the rotating cutting tool is also stopped. Finally, the beam (3) is extracted out of the welded tube (1).

第1の移動ベース(5)の移動は、その切削完了位置(
第1図口上部矢示C点)、前進限(第1図口上部矢示り
点)および後退限(第1図口上部矢示A点)に対応する
位置にリミットスイッチを設けることによって自動化で
き、また、このリミットスイッチを第1の移動ベース(
5)の移動路に沿って位置移動可能に設けることによっ
て、第1の移動ベース(5)のストロークを変えること
も可能である。
The first moving base (5) moves to its cutting completion position (
Automation is achieved by installing limit switches at the positions corresponding to the forward limit (arrow point C above the mouth in Figure 1), the forward limit (arrow point A above the mouth in Figure 1), and the backward limit (point A arrow above the mouth in Figure 1). You can also attach this limit switch to the first moving base (
It is also possible to change the stroke of the first moving base (5) by providing the first moving base (5) so as to be movable along the moving path.

第2の移動ペースα(27)についても、その下限位置
をリミットスイッチで検知することによシ自動停止が可
能である。第2の移動ベースa<の上限は、倣いローラ
@を溶接管(1)の内面に弾発的に当接させる関係上、
必要でない。
The second movement pace α (27) can also be automatically stopped by detecting its lower limit position with a limit switch. The upper limit of the second moving base a
Not necessary.

また、第2の移動ベースα弔駆動用のシリンダーα61
ffi高速、低速の二段動作とするとともに、倣いロー
ラ0のに近接して接触式あるいは非接触式のビード近接
検知機構を付設し、この機構がビード近接を検知するま
ではシリンダーαl高速で上昇動作嘔せ、ビード近接検
知後は低速動作として、切削開始までに要する時間を短
縮することも可能である。同様に下降時もビード近接倹
知中は低速動作、ビード近接が検知されなくなった時点
から高速動作とすることによシ、下降時間の短縮を図る
ことも可能である。
In addition, the cylinder α61 for driving the second moving base α
In addition to the two-stage operation of ffi high speed and low speed, a contact or non-contact type bead proximity detection mechanism is attached close to the copying roller 0, and until this mechanism detects the bead proximity, the cylinder α1 rises at high speed. It is also possible to shorten the time required to start cutting by operating at a low speed after the bead proximity is detected. Similarly, when descending, it is possible to shorten the descending time by operating at a low speed while detecting bead proximity, and then operating at high speed from the time when bead proximity is no longer detected, thereby shortening the descending time.

第1の移動ベース(5) Kついても高速、低速の二段
動作とし、切削に直接関与しない後退句作等を高速です
ばやく行うことも可能である。
The first movable base (5) also has a two-stage operation of high speed and low speed, and it is also possible to quickly perform retreating phrases etc. that are not directly involved in cutting at high speed.

なお、第1図の装置では溶接部を上にした溶接管(1)
に対してビード切削を行ってその切粉全自然落下排除嘔
せて、切粉巻込み切削等による切削面損傷が生じる恐れ
のないようにしているが、本装置を反転でせることによ
シ、溶接部を下にした溶接管(1)に対してもビード切
削を行うことができる。
In addition, in the device shown in Figure 1, the welded pipe (1) with the welded part facing up
Bead cutting is performed to remove all of the chips from falling naturally, thereby preventing the risk of damage to the cutting surface due to chips being entrained in the cutting process. , bead cutting can also be performed on a welded pipe (1) with the welded part facing down.

また、第1図の装置では、ストレートシーム溶接を終え
た大径管を対象とし、かつそのビート除去部分上管端部
に限るものとしているが、比較的大径の電縫管も含めて
管内面ビードを管の全長に亘って除去する場合にも本装
置は適用可能である。
In addition, the device shown in Figure 1 targets large diameter pipes that have undergone straight seam welding, and is limited to the upper end of the pipe where the bead is removed. The present device is also applicable to removing surface beads along the entire length of a pipe.

念だし、この場合は管の全長に見合うだけの第1の移動
ベースのストロークを確保するか、あるいは第1の移動
ベースをブームに固定し、管を軸方向に移動させる等の
配慮が必要である。後者の場合、ブームを溶接管にクラ
ンプする必要のないことは言うまでもない。
Just to be sure, in this case, consideration must be given to ensuring the stroke of the first moving base is commensurate with the total length of the pipe, or by fixing the first moving base to the boom and moving the pipe in the axial direction. be. It goes without saying that in the latter case there is no need to clamp the boom to the welded pipe.

〔発明の効果〕〔Effect of the invention〕

以上の説明から明らかなように、不発明の内面溶接ビー
ド除去装置は、切削工具として回転バイト全使用してい
るので、■回転砥石よりも切削能力が高く、ビード除去
速度の向上を図ることができる。■工具寿命が長く、取
替え頻度が低下し、作業性、経済性が良い。■回転砥石
のように作用面が減耗することがないので、ビードへの
切込深さの変更がない限り倣いローラ0つ位置の再調整
が不必要であシ、再調整の煩雑さから開放される。
As is clear from the above explanation, the uninvented internal weld bead removal device uses a rotating bit as a cutting tool, so it has higher cutting ability than a rotating grindstone and can improve the bead removal speed. can. ■Long tool life, less frequent replacement, and good workability and economy. ■Unlike a rotary grindstone, the working surface does not wear out, so there is no need to readjust the 0 position of the copying roller unless the depth of cut into the bead is changed, eliminating the hassle of readjustment. be done.

■切削時に粉塵が生じず、振動も少ないので、周辺機器
の機械的M度を低下させる危険が少lぐ、特に不装置を
タグ板除去装置と組合せる場合は非常に有利である。■
回転砥石よシも切削能力が優れるにもかかわらず小径で
あり、また第4図(イ)の装置のように切削工具を運動
させる必要もないので、ビード脇の管母材部に切込む危
険が少ない。
(2) Since no dust is generated during cutting and there is little vibration, there is little risk of lowering the mechanical M degree of peripheral equipment, which is particularly advantageous when the equipment is combined with a tag plate removal device. ■
Although the rotary grindstone has excellent cutting ability, it has a small diameter, and there is no need to move the cutting tool as in the device shown in Figure 4 (a), so there is a risk of cutting into the pipe base material next to the bead. Less is.

これに加えて本発明の装置では、回転バイトをブームに
対して前項又は後傾できるよりにしであるので、■第4
図q)の装置のように切削工具に揺動をさせることなく
ビード切削面を円弧に仕上げることができる。■しかも
円弧面の曲率を回転バイトの傾斜角によって調整できる
ので、ビード両脇の管母材部内面に滑らかに連結した切
削面を得ることができる。更に■小径で管母材部に切込
む危険が本来的に少ないこととあいまって、第5図(イ
)のような梁形が顕著な溶接管の場合にもビード部とそ
の近傍の肉厚管理を極めて厳重なものとすることができ
る。
In addition, in the device of the present invention, the rotary cutting tool is positioned so that it can be tilted forward or backward with respect to the boom.
Unlike the device shown in Figure q), the bead cutting surface can be finished into an arcuate shape without swinging the cutting tool. (2) Moreover, since the curvature of the circular arc surface can be adjusted by adjusting the inclination angle of the rotating cutting tool, it is possible to obtain a cutting surface that is smoothly connected to the inner surface of the tube base material on both sides of the bead. Furthermore, since the diameter is small and the risk of cutting into the pipe base material is inherently low, even in the case of welded pipes with a pronounced beam shape as shown in Figure 5 (a), the wall thickness at the bead and its vicinity is Management can be made extremely strict.

また、不発明のビード除去装置では回転バイトの切込み
深さをこれに近接し定倣いローラによって規制し、かつ
倣いローラを溶接管内面に弾発的に接触させるようにし
であるので、■第5図(ロ)のような管端の反り上りが
顕著な溶接管に対しても安定な切込み深さを確保でき、
管周方向の肉厚管理が厳重なこととあいまってビード部
全体の切削精度を飛躍的に向上せしめ得る。
In addition, in the uninvented bead removal device, the depth of cut of the rotary cutting tool is regulated by a fixed copying roller adjacent thereto, and the copying roller is brought into elastic contact with the inner surface of the welded pipe. A stable depth of cut can be ensured even for welded pipes with noticeable warpage at the pipe ends, as shown in Figure (b).
Combined with strict control of wall thickness in the tube circumferential direction, the cutting accuracy of the entire bead portion can be dramatically improved.

更にまt1本発明のビード除去装置では回転バイトと倣
いローラの位置関係ならびに回転バイトの傾斜角によっ
て安定なビード切削を可能にし、レーザー光などの光学
的測定手段を必要としないので、@装置構成が簡単でメ
ンテナンスが容易となシ、更に組入性、信頼性に優れる
とともに、装置コストも低い、0リミツトスイツチ等の
簡単なセンサーをもって自動化全行える等、経済性に著
しく優れ友ものとなる。
Furthermore, the bead removal device of the present invention enables stable bead cutting by the positional relationship between the rotating tool and the copying roller as well as the inclination angle of the rotating tool, and does not require optical measuring means such as a laser beam. It is simple and easy to maintain, and has excellent installation and reliability, low equipment cost, and can be fully automated with a simple sensor such as a 0 limit switch, making it extremely economical and a great companion.

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

第1図(0(ロ)は本発明を実施した管内面溶接ビード
除去装置の一例についてその構造を示す横断平面図(同
図イ)および縦断側面図(同図口)、第2図(梢(ロ)
は同装置における回転バイトと倣いローラとの位置関係
全示す背面図(同図イ)および平面図(同図口)、第8
図(梢(ロ)は回転バイトの傾斜角とビード切削面の曲
率との関ff1k示す背面図、第4図(イ)仲)は従来
の管内面溶接ビード除去装置の切削工具の部分子、模式
的に示す斜視図、第5図(イ)(ロ)は溶接管の形状を
模式的に示す正面図(同図イ)および側面図(同図口)
である。 図中、1:溶接管、1:管内面溶接ビード、2:タブ板
、8:ブーム、4:クランパー、5:第1の移動ベース
、7:モータ、11:ナツト、12:スクリュウ軸、1
4:第2の移動ベース、16:押圧手段(シリンダー)
、ts:l動ヘッド、26:チャック、27:口伝バイ
ト、29:モータ、31ニスライドベース、32:倣い
ローラ。 出願人  住友金属工業株式会社 代理人弁理士 吉 1)正 二15.・−]v1.1゛
」 第  2 図 第  3 図 (イ) 第  4 図 第 5 図 (イ)
Figure 1 (0 (b) is a cross-sectional plan view (a) and longitudinal side view (opening) showing the structure of an example of a pipe inner weld bead removal device embodying the present invention, and Figure 2 (opening of the same figure) (B)
8 is a rear view (a) showing the positional relationship between the rotary tool and the copying roller in the same device, and a top view (a) (exit in the same figure).
The figures (Top (b) is a rear view showing the relationship between the inclination angle of the rotating tool and the curvature of the bead cutting surface, and the middle part of Fig. 4 (a)) shows the parts of the cutting tool of a conventional tube inner welding bead removal device. A perspective view schematically showing the shape of the welded pipe, and a front view (A) and a side view (the opening in the same figure) schematically showing the shape of the welded pipe.
It is. In the figure, 1: welded pipe, 1: tube inner weld bead, 2: tab plate, 8: boom, 4: clamper, 5: first moving base, 7: motor, 11: nut, 12: screw shaft, 1
4: Second moving base, 16: Pressing means (cylinder)
, ts: l moving head, 26: chuck, 27: oral cutting tool, 29: motor, 31 nisride base, 32: copying roller. Applicant Sumitomo Metal Industries Co., Ltd. Representative Patent Attorney Yoshi 1) Tadashi 215.・-]v1.1'' Figure 2 Figure 3 (A) Figure 4 Figure 5 (A)

Claims (1)

【特許請求の範囲】[Claims] (1)内面溶接ビード(1)を除去しようとする溶接管
(1)の内部にあつて前記内面溶接ビード(1′)に対
して相対平行移動する第1の移動ベース(5)と、この
第1の移動ベース(5)に前記内面溶接ビード(1)に
対し押圧手段(16)をもつて進退すべく取付けた第2
の移動ベース(14)と、この第2の移動ベース(14
)に前記第1の移動ベース(5)の移動方向に前傾また
は後傾すべく取付けた傾動ヘッド(18)と、この傾動
ヘッド(18)に前記内面溶接ビード(1′)に向けて
取付けた回転バイト(27)と、この回転バイト(27
)に近接して回転バイト(27)との相対突出長さが調
整できるより前記傾動ヘッド(18)に取付けた倣いロ
ーラ(32)とを備えることを特徴とする管内面溶接ビ
ード除去装置。
(1) a first movable base (5) that is located inside the welded pipe (1) from which the inner weld bead (1) is to be removed and moves in parallel relative to the inner weld bead (1'); A second movable base (5) is attached to the first movable base (5) with a pressing means (16) to move forward and backward with respect to the inner weld bead (1).
a moving base (14), and a second moving base (14).
) is attached to the tilting head (18) so as to tilt forward or backward in the moving direction of the first moving base (5), and the tilting head (18) is attached to the tilting head (18) so as to face the inner weld bead (1'). Rotating bit (27) and this rotating bit (27)
) and a copying roller (32) attached to the tilting head (18), the relative protrusion length of which can be adjusted relative to the rotating bit (27).
JP29696885A 1985-12-27 1985-12-27 Tube internal weld bead removing device Granted JPS62157711A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP29696885A JPS62157711A (en) 1985-12-27 1985-12-27 Tube internal weld bead removing device
CA000526214A CA1332276C (en) 1985-12-27 1986-12-23 Apparatus for treating ends of large-diameter welded pipe
EP86310122A EP0228905B1 (en) 1985-12-27 1986-12-23 Apparatus for treating ends of largediameter welded pipe
US06/945,960 US4729502A (en) 1985-12-27 1986-12-24 Apparatus for treating ends of large-diameter welded pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP29696885A JPS62157711A (en) 1985-12-27 1985-12-27 Tube internal weld bead removing device

Publications (2)

Publication Number Publication Date
JPS62157711A true JPS62157711A (en) 1987-07-13
JPH0466643B2 JPH0466643B2 (en) 1992-10-23

Family

ID=17840529

Family Applications (1)

Application Number Title Priority Date Filing Date
JP29696885A Granted JPS62157711A (en) 1985-12-27 1985-12-27 Tube internal weld bead removing device

Country Status (1)

Country Link
JP (1) JPS62157711A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1815920A1 (en) * 2006-02-07 2007-08-08 Theodor Gräbener GmbH & Co. KG Method and installation for processing the interior longitudinal seam of longitudinally welded components such as pipes, containers, boilers, or similar
JP2009513375A (en) * 2005-10-31 2009-04-02 ティーアールアイ・トゥール・インコーポレーテッド Method and apparatus for weld shaping

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52111089A (en) * 1976-03-12 1977-09-17 Chiyoujirou Kabetani Method of and device for grinding to remove cracks in inner surface portion of drawn steel pipe
JPS5487996A (en) * 1977-12-26 1979-07-12 Hitachi Ltd Automatic grinding device for inner diameter surface

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52111089A (en) * 1976-03-12 1977-09-17 Chiyoujirou Kabetani Method of and device for grinding to remove cracks in inner surface portion of drawn steel pipe
JPS5487996A (en) * 1977-12-26 1979-07-12 Hitachi Ltd Automatic grinding device for inner diameter surface

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009513375A (en) * 2005-10-31 2009-04-02 ティーアールアイ・トゥール・インコーポレーテッド Method and apparatus for weld shaping
EP1815920A1 (en) * 2006-02-07 2007-08-08 Theodor Gräbener GmbH & Co. KG Method and installation for processing the interior longitudinal seam of longitudinally welded components such as pipes, containers, boilers, or similar

Also Published As

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