JP2691569B2 - Bending equipment for small diameter metal pipes - Google Patents
Bending equipment for small diameter metal pipesInfo
- Publication number
- JP2691569B2 JP2691569B2 JP18747688A JP18747688A JP2691569B2 JP 2691569 B2 JP2691569 B2 JP 2691569B2 JP 18747688 A JP18747688 A JP 18747688A JP 18747688 A JP18747688 A JP 18747688A JP 2691569 B2 JP2691569 B2 JP 2691569B2
- Authority
- JP
- Japan
- Prior art keywords
- bending
- guide
- guide surface
- fixed mold
- metal pipe
- 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 - Fee Related
Links
Landscapes
- Bending Of Plates, Rods, And Pipes (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は、細径金属管を多数箇所で曲げ加工する装
置、特に、自動車の燃料配管、ブレーキ配管等のように
各曲げ部の曲げ方向が同一平面上になく、三次元方向に
異なっている場合に適した細径金属管の曲げ加工装置に
関するものである。DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a device for bending a small-diameter metal pipe at a large number of places, particularly, a bending direction of each bending portion such as a fuel pipe and a brake pipe of an automobile. The present invention relates to an apparatus for bending a small-diameter metal pipe, which is suitable for a case where they are not on the same plane but are different in three-dimensional directions.
（従来の技術） 従来のこの種曲げ加工装置としては、第12図に示すよ
うに、１つの曲げ加工に対して先ず受けロール11がシリ
ンダ12により移動させられて金属管13に接し、次いで曲
げロール14をシリンダ15により移動させて、金属管13を
曲げ加工するという単位曲げ装置を複数の曲げ個所に対
して必要な数だけ配置したものであった。なお、16,17
は基台、18,19はステー、20は基盤を示す。(Prior Art) As a conventional bending apparatus of this type, as shown in FIG. 12, a receiving roll 11 is first moved by a cylinder 12 to come into contact with a metal tube 13 for one bending operation, and then is bent. The unit bending apparatus for bending the metal tube 13 by moving the roll 14 by the cylinder 15 is arranged in a required number at a plurality of bending points. In addition, 16,17
Indicates a base, 18, 19 indicate stays, and 20 indicates a base.
（発明が解決しようとする課題） しかし、従来の曲げ加工装置にあっては、受けロール
11と曲げロール14を夫々シリンダ12,15により移動させ
て加工を行なうため、１つの曲げ加工に対して２動作が
必要で、そのため加工時間が長くなり、また、シリンダ
12,15のピストンロッドが共に伸長する状態で曲げ加工
を行うため、曲げ加工時にシリンダ（一般にはエアシリ
ンダ）内に圧力流体が供給されると、ピストンロッドに
加わる曲げモーメントが大きくなり、更に曲げ加工時の
反力に伴う撓みが両シリンダ12,15を支持するステー18,
19並びに基台16,17に生じ、そのため受けロール11と曲
げロール14との間に微妙な狂い（業者間では“息をつ
く”という）が発生し、製品にばらつきを生じていた。
その上、この狂いを考慮してステー18,19及び基台16,17
を厚肉で、強固なものとする必要があり、従って装置が
大型で重量が嵩むものとなった（このようにしても狂い
を生じていた）。またシリンダ12,15、受けロール11、
曲げロール14の位置及び方向等を考慮して装置全体を設
計・配置するため組立・調整等の製造に長時間を要し、
量産立上り時に装置が間にあわず、また、部品点数が多
く従って可動部分も多い等により製造コストが極めて高
価になりかつ耐久性が劣る等の問題点があった。(Problems to be solved by the invention) However, in the conventional bending apparatus, the receiving roll
11 and the bending roll 14 are moved by the cylinders 12 and 15, respectively, so that two operations are required for one bending operation.
Since bending is performed with the piston rods of 12, 15 extended together, if a pressurized fluid is supplied into a cylinder (generally an air cylinder) during bending, the bending moment applied to the piston rod increases, and the bending is further increased. The deflection caused by the reaction force during machining supports the cylinders 18 and 15,
19 and the bases 16 and 17, resulting in a slight deviation between the receiving roll 11 and the bending roll 14 (which is called "breathing among traders"), resulting in variations in products.
In addition, stays 18 and 19 and bases 16 and 17
Need to be thick and strong, thus making the device bulky and heavy (though this would still be confusing). In addition, cylinders 12 and 15, receiving roll 11,
It takes a long time to manufacture and assemble, adjust, etc. to design and arrange the entire device in consideration of the position and direction of the bending roll 14, etc.
At the time of mass production start-up, there were problems that the apparatus could not be completed, the number of parts was large, and the number of movable parts was large, so that the manufacturing cost was extremely high and the durability was poor.
したがって、本発明の目的は、上記狂い（息をつく）
を防止することを第一とし、さらに１つの曲げ加工を１
動作で完了して加工時間を短縮し、かつ小型で、軽量化
を計った製造が容易且つ安価な曲げ加工装置を提供する
ことである。Therefore, the purpose of the present invention is to
The first is to prevent the
An object of the present invention is to provide a bending apparatus which is completed in operation to shorten the processing time, is small in size, is light in weight, easy to manufacture, and inexpensive.
（課題を解決するための手段） 上記目的を達成するために、本発明の細径金属管の曲
げ加工装置においては、棒材又は管材を連結して金属管
の全長に亘る曲げ加工形状に略合致する姿形状に形成さ
れると共に、曲げ部において長手方向は金属管の曲げ半
径より小さい曲率を有し且つ幅手方向は曲げ平面に略直
交する面から成るガイド面を有する固定型枠と；金属管
が該ガイド面に沿って曲げられるようガイド面と対向す
る外周面を有し且つ型枠に取付けられたアクチュエータ
により固定型枠の外方から該固定型枠に向かって移動す
る曲げ部材と；から構成され、また、棒材又は管材を連
結して金属管の全長に亘る曲げ加工形状に略合致する姿
形状に形成されると共に、曲げ部において曲げ平面に略
平行する面から成るガイド面を有する固定型枠と；該ガ
イド面と略直角方向に前記固定型枠に立設され且つ金属
管の曲げ半径より小さな曲率を有するガイド部材と；金
属管が前記ガイド面とガイド部材とに沿って曲げられる
よう型枠に取付けられたアクチュエータにより固定型枠
の外方から該固定型枠に向かって移動する曲げ部材と；
から成り、更に、棒材又は管材を連結して金属管の全長
に亘る曲げ加工形状に略合致する姿形状に形成された固
定型枠と；該固定型枠に設けられた、長手方向は金属管
の曲げ半径より小さな曲率を有し且つ幅手方向は曲げ平
面に略直交する面から成る第１ガイド面を有する少なく
とも１つの第１曲げ加工部と；前記固定型枠に設けられ
た、曲げ平面に略平行する面から成る第２ガイド面及び
該第２ガイド面と略直角方向に前記固定型枠に立設され
且つ金属管の曲げ半径より小さな曲率を有するガイド部
材とを具備する少なくとも１つの第２曲げ加工部と；前
記第１曲げ加工部においては前記第１ガイド面に沿って
金属管が曲げられるよう型枠に取付けられたアクチュエ
ータにより固定型枠の外方から該固定型枠に向かって移
動する第１曲げ部材と；前記第２曲げ加工部においては
前記第２ガイド面とガイド部材に沿って金属管が曲げら
れるよう同じく型枠に取付けられたアクチュエータによ
り固定型枠の外方から該固定型枠に向かって移動する第
２曲げ部材と；から成ることを要旨とし、更に前記棒材
又は管材を溶接により連結して構成した固定型枠を断面
略四角形に形成すると共に、前記ガイド部材を板片状又
はブロック状として形成し、また前記曲げ部材をエアシ
リンダにより駆動されるロールで構成したものである。(Means for Solving the Problems) In order to achieve the above object, in the bending apparatus for a thin metal pipe of the present invention, a rod or a pipe material is connected to form a bending shape over the entire length of the metal pipe. A fixed formwork which is formed in a matching shape and has a guide surface which has a curvature in the longitudinal direction smaller than the bending radius of the metal tube in the bending portion and has a guide surface in the width direction which is substantially orthogonal to the bending plane; A bending member that has an outer peripheral surface facing the guide surface so that the metal tube can be bent along the guide surface, and that moves from the outside of the fixed mold toward the fixed mold by an actuator attached to the mold. And a guide surface formed by connecting rods or pipes into a shape substantially conforming to the bending shape over the entire length of the metal pipe, and having a surface substantially parallel to the bending plane at the bending portion. Fixed type with A frame; a guide member standing upright on the fixed frame in a direction substantially perpendicular to the guide surface and having a curvature smaller than the bending radius of the metal tube; a metal tube bent along the guide surface and the guide member A bending member that moves from the outside of the fixed mold toward the fixed mold by an actuator attached to the mold;
And a fixed form which is formed by connecting rods or pipes into a shape substantially conforming to the bending shape over the entire length of the metal pipe; and a metal provided in the fixed form in the longitudinal direction. At least one first bending portion having a curvature smaller than the bending radius of the pipe and having a first guide surface having a width direction substantially orthogonal to the bending plane; and a bending portion provided on the fixed mold. At least one: a second guide surface, which is a surface substantially parallel to a plane, and a guide member which is erected on the fixed mold in a direction substantially perpendicular to the second guide surface and has a curvature smaller than the bending radius of the metal pipe. Two second bending parts; from the outside of the fixed mold to the fixed mold by an actuator attached to the mold so that the metal pipe is bent along the first guide surface in the first bending part. First bending part moving toward In the second bending portion, from the outside of the fixed mold to the fixed mold by an actuator which is also attached to the mold so that the metal pipe can be bent along the second guide surface and the guide member. A second bending member that moves; and, in addition, a fixed form frame formed by connecting the rod members or pipe members by welding is formed into a substantially rectangular cross section, and the guide member is a plate piece or a block. In addition, the bending member is formed by a roll driven by an air cylinder.
（作用） 本発明は、上記のようにガイド面を有する固定された
型枠と、金属管がガイド面又はガイド面とガイド部材と
に沿って曲げられるよう、この型枠に直接又は支柱若く
はブラケットを介して取付けられたアクチュエータ、例
えばエアシリンダ、ロータリアクチュエータ等によりガ
イドの外方から移動する曲げ部材によって曲げ加工を行
っている。即ち、曲げ部材を作動させるアクチュエータ
が溶接等により固定型枠に結合されているため曲げ加工
時の反力に伴う撓みの影響を受けることがなく、また好
ましくは従来のようにエアシリンダのピストンロッドが
押しの状態（延長した状態）で曲げを行なうのではな
く、引く状態で行なうことにより各曲げ加工終了時には
ピストンロッド等に曲げモーメントが殆んど加わらず、
またピストンロッド用ブッシュのガタによる影響も最小
となり、したがって曲げ部材との間には微妙な狂い（息
をつく）の発生を防止する。その上１つの曲げ加工に対
しても１動作ですむので時間が短縮され、また型枠も溶
接等で簡単に作られ、さらに型枠に向って曲げ部材（ア
クチュエータを含む）を配置するから装置も小型化で
き、かつ軽量化にもなる。(Operation) The present invention includes a fixed frame having a guide surface as described above, and a metal tube directly or on a column or a column so that the metal tube can be bent along the guide surface or the guide surface and the guide member. Bending is performed by a bending member that moves from the outside of the guide by an actuator mounted via a bracket, such as an air cylinder or a rotary actuator. That is, since the actuator for actuating the bending member is connected to the fixed formwork by welding or the like, it is not affected by the bending due to the reaction force during the bending process, and is preferably the piston rod of the air cylinder unlike the conventional case. When bending is completed, bending moment is hardly applied to the piston rod, etc., when bending is completed, instead of bending while pushing (extended)
In addition, the influence of the backlash of the piston rod bush is minimized, so that a slight deviation (breathing) from the bending member is prevented. In addition, since one operation is required for one bending process, the time is shortened, and the mold can be easily made by welding etc., and the bending members (including actuators) are arranged toward the mold. Can be smaller and lighter.
（実施例） 第１図は本発明の実施例を示す部分斜視図、第２図は
第１図のＡ−Ａ断面拡大矢視図、第３図は第１図のＢ−
Ｂ断面拡大矢視図、第４図（ａ）及び第４図（ｂ）は夫
々第１図Ｃ−Ｃ及びＣ′−Ｃ′断面拡大矢視図、第５図
は第１図Ｄ−Ｄ断面拡大矢視図、第６図は他の実施例の
断面図、第６図（ａ）は第６図の要部拡大図、第７図〜
第９図は夫々アクチュエータの取付状態を示す図であ
る。図に示すように、１は金属管２の全長に亘る曲げ形
状に略合致し、かつ曲げ部付近の、好ましくは曲げ角度
範囲内において幅手方向が曲げ平面に略直交する面から
成る第１ガイド面１′及び該曲げ平面に略平行する面か
ら成る第２ガイド面１″とを有する棒材（第２図乃至第
５図参照）、管材（第７図参照）等を溶接９により連結
して連続せしめた長尺材の固定型枠で、断面輪郭に平坦
部を有し、好ましくは断面略四角形に形成されている。
しかし第２ガイド面１″の断面形状はこれに限定される
ことなく円形であってもよく、この場合第２ガイド面
１″は後述するガイド部材３と略直角方向に延長する、
金属管２の外周面の接線により形成される面を意味す
る。金属管２の曲げ加工すべき型枠１の所要位置には、
金属管２の曲げ半径より小さい曲率を有した、前記第１
ガイド面１′、及び前記第２ガイド面１″と略直角方向
に溶接等により立設されたガイド部材３とが設けられて
いる。この第１ガイド面１′、第２ガイド面１″、ガイ
ド部材３及び型枠１等の曲率や形状は、曲げ加工時の金
属管２のスプリングバックを考慮して定めてある。な
お、ガイド部材３は第４図（ａ）のように板片状に形成
してもよく、また第４図（ｂ）のようにブロック状に形
成してもよい。そして型枠１は必要数の支柱４により基
盤６上に固定されるが、本発明では従来例とは異なり支
柱４同志を互いに結合すれば基盤６は必ずしも必要とし
ない。５は金属管２を第１ガイド面１′、或いは第２ガ
イド面１″とガイド部材３に沿って圧接しながら固定型
枠１に向って移動できるよう配置された曲げ部材で、第
１ガイド面１′における曲げ加工のための曲げ部材は、
第２図に示すようにその外周面が第１ガイド面１′に対
向するよう配置されており、また第３図に示すように第
２ガイド面１″とガイド部材３における曲げ加工のため
の曲げ部材５はその移動方向が第２ガイド面１″と略平
行乃至わずかな傾きをもつよう配置されている。なお、
５′は加工前の位置を示す曲げ部材を示す。また曲げ部
材５は金属管２を第１ガイド面１′、或いは第２ガイド
面１″とガイド３に沿って曲げられるよう型枠１に取付
けられたアクチュエータ７（第１図ではエアシリンダ７
1で示す）によりガイド３の外方よりピストンロッド８
により直進（第８図参照）又は揺動するレバー10を介し
て円弧状（第９図参照）に移動する曲げ部材である。(Embodiment) FIG. 1 is a partial perspective view showing an embodiment of the present invention, FIG. 2 is an enlarged cross-sectional view taken along the line AA of FIG. 1, and FIG.
B section enlarged arrow view, FIG.4 (a) and FIG.4 (b) are respectively FIG. 1 CC and C'-C 'sectional enlarged arrow view, FIG. 5 is FIG. 1 D-D. 6 is a sectional view of another embodiment, FIG. 6 (a) is an enlarged view of an essential part of FIG. 6, and FIG.
FIG. 9 is a diagram showing a mounting state of the actuators. As shown in the drawing, reference numeral 1 denotes a first surface which substantially conforms to the bending shape over the entire length of the metal tube 2 and which is a surface near the bending portion, preferably in the bending angle range, whose width direction is substantially orthogonal to the bending plane. A rod (see FIGS. 2 to 5) having a guide face 1 ′ and a second guide face 1 ″ composed of a face substantially parallel to the bending plane, a pipe member (see FIG. 7), etc. are connected by welding 9. It is a fixed mold made of a long material that is continuously formed, and has a flat portion in the cross-sectional contour, and is preferably formed in a substantially square cross-section.
However, the cross-sectional shape of the second guide surface 1 ″ is not limited to this, and may be circular, and in this case, the second guide surface 1 ″ extends in a direction substantially perpendicular to the guide member 3 described later,
It means the surface formed by the tangent line of the outer peripheral surface of the metal tube 2. At the required position of the mold 1 where the metal tube 2 is to be bent,
The first having a curvature smaller than the bending radius of the metal tube 2.
There are provided a guide surface 1'and a guide member 3 standing upright by welding or the like in a direction substantially perpendicular to the second guide surface 1 ". The first guide surface 1'and the second guide surface 1", The curvatures and shapes of the guide member 3, the mold 1 and the like are determined in consideration of the springback of the metal tube 2 during bending. The guide member 3 may be formed in a plate piece shape as shown in FIG. 4 (a), or may be formed in a block shape as shown in FIG. 4 (b). The formwork 1 is fixed on the base 6 by a necessary number of columns 4, but in the present invention, unlike the conventional example, the base 6 is not necessarily required if the columns 4 are connected to each other. Reference numeral 5 is a bending member arranged so that the metal tube 2 can be moved toward the fixed mold 1 while being pressed against the first guide surface 1 ′ or the second guide surface 1 ″ and the guide member 3. The bending member for bending on the surface 1'is
As shown in FIG. 2, its outer peripheral surface is arranged so as to face the first guide surface 1 ′, and as shown in FIG. 3, the second guide surface 1 ″ and the guide member 3 for bending work. The bending member 5 is arranged so that its moving direction is substantially parallel to the second guide surface 1 ″ or has a slight inclination. In addition,
Reference numeral 5'denotes a bending member which indicates a position before processing. Further, the bending member 5 is an actuator 7 (in FIG. 1, an air cylinder 7 in FIG. 1) mounted on the mold 1 so that the metal tube 2 can be bent along the first guide surface 1 ′ or the second guide surface 1 ″ and the guide 3.
The piston rod 8 from the outside of the guide 3 by indicating 1)
Is a bending member that moves in an arc shape (see FIG. 9) through a lever 10 that moves straight (see FIG. 8) or swings.
曲げ部材５を直進させる場合はアクチュエータ７は第
１図、第６図、第７図及び第８図に示すように型枠１に
直接、又は支柱４若くはブラケット４′を介して軸芯が
一定方向に固定され、また曲げ部材５を円弧状に移動さ
せる場合は、第１図及び第９図に示すようにアクチュエ
ータ７はその支持部がブラケット４′に軸支されて軸芯
が移動できるように取付けられている。即ち、いずれも
アクチュエータ７は型枠１に直接、又は支柱４若くはブ
ラケット４′を介して例えば溶接９によりしっかりと取
付けられていることが重要である。そしてピストンロッ
ド８を引く状態で曲げ部材５をガイド面１′又はガイド
部材３の外方より型枠１に向って移動せしめるようにな
っている。これらのアクチュエータの取付けと曲げ部材
の移動方法は前後の曲げ形状、金属管２との干渉状況に
よって選択される。尚曲げ部材５を駆動するアクチュエ
ータ７には図示したエアシリンダ７1のほか、第11図に
示すようにロータリアクチュエータ７2、或いは図には
示さないがラックアンドピニオンで作動させるアクチュ
エータ７でもよい。さらに曲げ部材５は第10図に示すよ
うに、曲げ部材５と金属管２との接触部は円弧接触の
外、２点接触の角形溝にしてもよい。When the bending member 5 is moved straight, the actuator 7 is moved directly to the form 1 as shown in FIGS. 1, 6, 7, and 8, or the axis of the actuator 7 is adjusted by the support 4 or the bracket 4 '. When the bending member 5 is fixed in a fixed direction and the bending member 5 is moved in an arc shape, the actuator 7 has its supporting portion pivotally supported by the bracket 4 ', and the shaft center can be moved, as shown in FIGS. Is installed as. That is, in any case, it is important that the actuator 7 is firmly attached to the formwork 1 directly or via the support column 4 or the bracket 4'by welding 9, for example. The bending member 5 is moved toward the form 1 from the outside of the guide surface 1 ′ or the guide member 3 in a state where the piston rod 8 is pulled. The mounting method of these actuators and the method of moving the bending member are selected depending on the front and rear bending shapes and the state of interference with the metal tube 2. The actuator 7 for driving the bending member 5 may be the air cylinder 7 1 shown, a rotary actuator 7 2 as shown in FIG. 11, or a rack and pinion operated actuator 7 (not shown). Further, as shown in FIG. 10, the bending member 5 may have a contact point between the bending member 5 and the metal tube 2 which is not a circular arc contact but a two-point contact rectangular groove.
次に、金属管２の曲げ加工は、先ず、直状の金属管２
の一端を固定型枠１の一端に付設した掛止具11に端金具
12を利用して掛止め固定するか、またはストッパ等によ
り寸法出しを行った（図示せず）中間部の一定位置をク
ランプ装置等で固定する。次いで、前者では固定端側よ
り自由端側に向って、後者では固定部から両自由端に向
って、順次曲げ部材５を型枠１に向って前進又は円弧動
作をさせながら金属管２を型枠１の第１ガイド面１′、
又は第２ガイド面１″とガイド部材３に沿うよう圧接さ
せて、曲げ加工を行なっていく。尚本発明装置は金属管
のみならず棒材の曲げ加工にも用いることができる。Next, the bending process of the metal tube 2 is performed by first forming the straight metal tube 2.
One end of the hook is attached to one end of the fixed form 1
12 is used for latching or fixing, or a fixed position of the intermediate portion which is dimensioned by a stopper or the like (not shown) is fixed by a clamp device or the like. Next, in the former case, the metal pipe 2 is moved toward the free end side from the fixed end side, and in the latter case, from the fixed part toward both free ends, the bending member 5 is sequentially moved toward the mold frame 1 while performing the forward or arc operation, and the metal pipe 2 The first guide surface 1'of the frame 1,
Alternatively, the second guide surface 1 ″ and the guide member 3 are pressed against each other to perform bending. The apparatus of the present invention can be used for bending not only a metal tube but also a bar.
（発明の効果） 以上、詳細に説明したように、本発明によれば固定型
枠１と金属管２がガイド３及びガイド面１′又は第２ガ
イド面１″に沿って曲げられるよう型枠１に直接、又は
支柱４若くはブラケット４′を介して取付けられたアク
チュエータ７によりガイド３の外方から移動する曲げ部
材５によって曲げ加工を行なっている。即ち、曲げ部材
５を作動するアクチュエータ７が固定型枠１に結合され
ているのでステー等による撓みを防止し、また好ましく
は曲げ部材５がアクチュエータ７によりピストンロッド
を引く状態で行なわれることにより、従来のように押し
状態、即ち延びた状態によるピストンロッド用ブッシュ
のガタによる影響を最小にしかつ曲げモーメントを殆ん
ど加わらないようにすることができる。したがって曲げ
部材５とガイド３との間に生ずる微妙な狂い（息をつ
く）の発生を防止し精度の高い曲げ形状の製品が得られ
る、また、１つの動作で１つの曲げ加工が完了するた
め、時間が短縮され、その上市販の角材等を所要の長さ
に切断し曲げ加工をした後、金属管の全長に亘る曲げ形
状に略合致するよう連続的に溶接し、さらに板片状のガ
イド部材３を所定位置に立設して型枠１を形成し、該型
枠に向って作動するよう曲げ部材５（アクチュエータ７
を含む）を配置するだけで曲げ加工装置全体を構成でき
るため、従来例に比較して部品点数を大幅に減少でき、
小型化、軽量化が可能となり、製造費用を大幅に下げる
ことができると共に、極めて短時間で製造できるために
量産立上り時に確実に稼動可能状態におくことができる
等の極めて大きな効果がある。(Effects of the Invention) As described in detail above, according to the present invention, the fixed mold 1 and the metal tube 2 are bent so that they can be bent along the guide 3 and the guide surface 1'or the second guide surface 1 ". Bending is performed by a bending member 5 which is moved from the outside of the guide 3 by an actuator 7 attached directly to 1 or via a pillar 4 or a bracket 4 '. Is connected to the fixed mold 1 to prevent bending due to a stay or the like, and preferably the bending member 5 is pushed by the actuator 7 so that the piston rod is pulled, so that the bending member 5 pushes, that is, extends. It is possible to minimize the influence of backlash of the piston rod bush due to the state and to apply almost no bending moment. It is possible to obtain a product with a highly accurate bending shape by preventing the occurrence of a slight deviation (breathing) between the guide 5 and the guide 3, and since one bending process is completed in one operation, it takes time. After shortening, and further cutting a commercially available square bar or the like into a required length and bending the same, it is continuously welded so as to substantially match the bending shape over the entire length of the metal tube, and further, a plate-shaped guide member 3 Is erected at a predetermined position to form the mold 1, and the bending member 5 (actuator 7 is operated so as to operate toward the mold).
The entire bending machine can be configured by simply arranging
The size and weight can be reduced, the manufacturing cost can be significantly reduced, and the manufacturing can be performed in an extremely short time, so that the system can be reliably put into an operable state at the start of mass production.
第１図は本発明細径金属管の曲げ加工装置の一実施例を
示す部分斜視図、第２図は第１図のＡ−Ａ断面拡大矢視
図、第３図は第１図のＢ−Ｂ断面拡大矢視図、第４図
（ａ）及び第４図（ｂ）は夫々第１図のＣ−Ｃ及びＣ′
−Ｃ′断面拡大矢視図、第５図は第１図のＤ−Ｄ断面拡
大矢視図、第６図は他の実施例の断面図、第６図（ａ）
は第６図の要部拡大図、第７図〜第９図は夫々アクチュ
エータの取付状態を示す図、第10図は更に他の実施例を
示す正面図、第11図は更に別の実施例を示す平面図、第
12図は従来の曲げ加工装置を示す斜視図である。 １……固定型枠、１′,1″……ガイド面、２……金属
管、３……ガイド部材、４……支柱、５……曲げ部材、
６……基盤、７……アクチュエータ、８……ピストンロ
ッド、９……溶接、10……レバー、11……受けロール、
12,15……シリンダ、13……金属管、14……曲げロールFIG. 1 is a partial perspective view showing one embodiment of a bending apparatus for a small diameter metal pipe of the present invention, FIG. 2 is an enlarged cross-sectional view taken along the line AA of FIG. 1, and FIG. 3 is B of FIG. FIG. 4 (a) and FIG. 4 (b) are CC and C ′ in FIG. 1, respectively.
FIG. 5 is an enlarged sectional view taken along the line DD in FIG. 1, FIG. 6 is a sectional view of another embodiment, and FIG. 6 (a).
FIG. 7 is an enlarged view of a main part of FIG. 6, FIGS. 7 to 9 are views showing the mounting state of the actuators, FIG. 10 is a front view showing still another embodiment, and FIG. 11 is another embodiment. Top view showing the
FIG. 12 is a perspective view showing a conventional bending apparatus. DESCRIPTION OF SYMBOLS 1 ... Fixed formwork, 1 ', 1 "... Guide surface, 2 ... Metal pipe, 3 ... Guide member, 4 ... Prop, 5 ... Bending member,
6 ... substrate, 7 ... actuator, 8 ... piston rod, 9 ... welding, 10 ... lever, 11 ... receiving roll,
12,15 …… Cylinder, 13 …… Metal tube, 14 …… Bending roll
Claims (7)
る曲げ加工形状に略合致する姿形状に形成されると共
に、曲げ部において長手方向は金属管の曲げ半径より小
さい曲率を有し且つ幅手方向は曲げ平面に略直交する面
から成るガイド面を有する固定型枠と；金属管が該ガイ
ド面に沿って曲げられるようガイド面と対向する外周面
を有し且つ型枠に取付けられたアクチュエータにより固
定型枠の外方から該固定型枠に向かって移動する曲げ部
材と；から成る細径金属管の曲げ加工装置。1. A bar or pipe member is connected to form a shape that substantially conforms to the bending shape of the metal pipe over the entire length, and the longitudinal direction of the bent portion has a curvature smaller than the bending radius of the metal pipe. And a fixed mold having a guide surface whose width direction is substantially perpendicular to the bending plane; and a mold having an outer peripheral surface facing the guide surface so that the metal tube can be bent along the guide surface. And a bending member that moves from the outside of the fixed mold toward the fixed mold by an attached actuator.
る曲げ加工形状に略合致する姿形状に形成されると共
に、曲げ部において曲げ平面に略平行する面から成るガ
イド面を有する固定型枠と；該ガイド面と略直角方向に
前記固定型枠に立設され且つ金属管の曲げ半径より小さ
な曲率を有するガイド部材と；金属管が該ガイド面とガ
イド部材とに沿って曲げられるよう型枠に取付けられた
アクチュエータにより固定型枠の外方から該固定型枠に
向かって移動する曲げ部材と；から成る細径金属管の曲
げ加工装置。2. A bar or pipe member is connected to be formed into a shape substantially conforming to a bending shape over the entire length of a metal pipe, and a bending surface has a guide surface formed of a surface substantially parallel to a bending plane. A fixed formwork; a guide member standing upright on the fixed formwork in a direction substantially perpendicular to the guide surface and having a curvature smaller than the bending radius of the metal pipe; and a metal pipe bent along the guide face and the guide member. And a bending member that is moved from the outside of the fixed mold toward the fixed mold by an actuator attached to the mold so that the bending work device for a thin metal tube.
る曲げ加工形状に略合致する姿形状に形成された固定型
枠と；該固定型枠に設けられた、長手方向は金属管の曲
げ半径より小さな曲率を有し且つ幅手方向は曲げ平面に
略直交する面から成る第１ガイド面を有する少なくとも
１つの第１曲げ加工部と；前記固定型枠に設けられた、
曲げ平面に略平行する面から成る第２ガイド面と略直角
方向に前記固定型枠に立設され且つ金属管の曲げ半径よ
り小さな曲率を有するガイド部材とを具備する少なくと
も１つの第２曲げ加工部と；前記第１曲げ加工部におい
ては前記第１ガイド面に沿って金属管が曲げられるよう
型枠の外方から該固定型枠に向かって移動する第１曲げ
部材と；前記第２ガイド面とガイド部材に沿って金属管
が曲げられるよう型枠に取付けられたアクチュエータに
より固定型枠の外方から該固定型枠に向かって移動する
第２曲げ部材と；から成る細径金属管の曲げ加工装置。3. A fixed formwork, which is formed by connecting rods or pipes to each other so as to substantially match the bending shape over the entire length of the metal pipe; and a metal provided in the fixed form in the longitudinal direction. At least one first bending portion having a curvature smaller than the bending radius of the pipe and having a first guide surface having a width direction substantially orthogonal to the bending plane; and provided on the fixed mold.
At least one second bending process comprising a second guide surface formed of a surface substantially parallel to the bending plane and a guide member standing upright on the fixed mold in a substantially right angle direction and having a curvature smaller than the bending radius of the metal tube. A first bending member that moves from the outside of the mold toward the fixed mold so that the metal pipe is bent along the first guide surface in the first bending portion; and the second guide. A second bending member that moves from the outside of the fixed mold toward the fixed mold by an actuator attached to the mold so that the metal pipe can be bent along the surface and the guide member; Bending machine.
項１〜３のいずれか１項記載の細径金属管の曲げ加工装
置。4. The bending apparatus for a thin metal pipe according to claim 1, wherein the rod or the pipe has a substantially rectangular cross section.
請求項１〜３のいずれか１項記載の細径金属管の曲げ加
工装置。5. The bending apparatus for a thin metal pipe according to claim 1, wherein the rods or pipes are connected by welding.
チュエータにより駆動されるロールからなる請求項１〜
３のいずれか１項記載の細径金属管の曲げ加工装置。6. The bending member comprises a roll driven by an air cylinder or a rotary actuator.
3. A bending apparatus for a thin metal tube according to any one of 3 above.
る請求項２または３記載の細径金属管の曲げ加工装置。7. The bending apparatus for a thin metal tube according to claim 2, wherein the guide member is in the form of a plate piece or a block.
Priority Applications (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18747688A JP2691569B2 (en) | 1988-07-27 | 1988-07-27 | Bending equipment for small diameter metal pipes |
| CA000597646A CA1335784C (en) | 1988-05-13 | 1989-04-24 | Small-diameter metallic conduit bending machine |
| GB8909512A GB2218363B (en) | 1988-05-13 | 1989-04-26 | A machine for bending lengths of pipe or bar stock or the like. |
| SE8901539A SE468790B (en) | 1988-05-13 | 1989-04-27 | BENDING MACHINE CARRIES METAL ROWS OF LESS DIAMETERS |
| AU33832/89A AU3383289A (en) | 1988-05-13 | 1989-04-27 | Small-diameter metallic conduit bending machine |
| FR8906025A FR2631261B1 (en) | 1988-05-13 | 1989-05-02 | LOW DIAMETER METAL PIPE BENDING MACHINE |
| KR1019890006101A KR920001577B1 (en) | 1988-05-13 | 1989-05-08 | Small-diameter metallic conduit vending machine |
| DE3915253A DE3915253A1 (en) | 1988-05-13 | 1989-05-10 | BENDING MACHINE FOR METAL PIPELINES WITH A SMALL DIAMETER |
| US07/544,253 US5042282A (en) | 1988-05-13 | 1990-06-26 | Small-diameter metallic conduit bending machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18747688A JP2691569B2 (en) | 1988-07-27 | 1988-07-27 | Bending equipment for small diameter metal pipes |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0237919A JPH0237919A (en) | 1990-02-07 |
| JP2691569B2 true JP2691569B2 (en) | 1997-12-17 |
Family
ID=16206749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18747688A Expired - Fee Related JP2691569B2 (en) | 1988-05-13 | 1988-07-27 | Bending equipment for small diameter metal pipes |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2691569B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8307685B2 (en) * | 2008-04-09 | 2012-11-13 | Shape Corp. | Multi-directionally swept beam, roll former, and method |
| US8333095B2 (en) | 2009-09-21 | 2012-12-18 | Shape Corp. | Roll former with three-dimensional sweep unit |
| JP2013191549A (en) * | 2013-02-08 | 2013-09-26 | Ngk Spark Plug Co Ltd | Method for manufacturing spark pug |
-
1988
- 1988-07-27 JP JP18747688A patent/JP2691569B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0237919A (en) | 1990-02-07 |
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