JPH0810855A - Shapes bender - Google Patents
Shapes benderInfo
- Publication number
- JPH0810855A JPH0810855A JP17192294A JP17192294A JPH0810855A JP H0810855 A JPH0810855 A JP H0810855A JP 17192294 A JP17192294 A JP 17192294A JP 17192294 A JP17192294 A JP 17192294A JP H0810855 A JPH0810855 A JP H0810855A
- Authority
- JP
- Japan
- Prior art keywords
- bending
- shaped steel
- shapes
- punch
- die
- 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、液圧プレスを利用した
山形鋼やＨ形鋼等の形鋼を折り曲げる装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for bending a section steel such as an angle steel or an H-section steel using a hydraulic press.
【０００２】[0002]
【従来の技術及び発明が解決しようとする課題】橋や鉄
塔等の構造材として山形鋼やＨ形鋼等の形鋼を使用する
際に、使用箇所に応じて形鋼をその長手方向に対して直
交する方向で折り曲げる必要が生じることがある。この
ような場合の加工方法として冷間加工と熱間加工が存在
することは周知の通りである。冷間での折り曲げについ
ては、折り曲げ角度が決まっているものを金型を使って
加工することも行なわれているが、必要箇所の状態に応
じて一品生産的な加工を必要とする場合には対応できて
いないに等しかった。熱間での形鋼の折り曲げ加工は、
折り曲げるべき箇所を火炎バーナーで赤熱するまで加熱
した後、小型の油圧シリンダーにて加圧して折り曲げ、
希望する形状に仕上げるという方法であり、一品生産的
な加工には対応できるが、部分的にはプレス装置を使用
するという程度の手作業レベルの加工であった。また熱
間加工は危険を伴い、職場環境も悪く、熱による歪や表
面の酸化等が避けられず、後加工が必要となり、それら
を最小限に抑えるには、長年の経験と高い技能が必要と
されてきた。その上、形鋼１個当りの加工時間は冷間加
工の数十倍になるため、冷間で所望の角度に形鋼を折り
曲げられる加工の開発が望まれていた。2. Description of the Related Art When a section steel such as an angle steel or an H-section steel is used as a structural material for a bridge, a steel tower, or the like, the section steel is moved in the longitudinal direction according to the use location. May need to be bent in a direction perpendicular to the direction. It is well known that cold working and hot working exist as working methods in such a case. For bending in the cold, it is also possible to use a mold to process a product with a fixed bending angle, but if it is necessary to perform productive processing according to the state of the required location It was equal to not being able to cope. Bending of shaped steel in hot
After heating the place to be bent with a flame burner until it glows red, press it with a small hydraulic cylinder and bend it.
It was a method of finishing to the desired shape, and although it could be processed in a productive manner, it was a level of manual work such as partially using a press machine. In addition, hot working is dangerous and the work environment is poor. Distortion due to heat and oxidation of the surface are unavoidable, post-processing is required, and long-term experience and high skills are required to minimize them. And has been. In addition, since the processing time per one shaped steel is several tens of times longer than that of the cold working, it has been desired to develop a processing capable of bending the shaped steel at a desired angle in the cold.
【０００３】本発明はこのような従来の問題点に鑑みて
なしたもので、冷間で山形鋼やＨ形鋼等の形鋼を種々の
角度に折り曲げられる簡単な構成の装置を提供すること
を目的とする。SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional problems, and an object of the present invention is to provide an apparatus having a simple structure capable of bending a section steel such as an angle steel or an H-section steel at various angles in a cold state. With the goal.
【０００４】[0004]
【課題を解決するための手段】本発明に係る形鋼折り曲
げ装置は上記目的を達成するために、形鋼を長手方向と
直交する方向で折り曲げる装置であって、上型及び下型
からなる折り曲げ型と、該折り曲げ型を型締めする型締
め用液圧シリンダーと、折り曲げ位置を挟んで対向配置
する折り曲げ用液圧シリンダーとからなり、上記上型及
び下型がそれぞれ、上記型締め用液圧シリンダーに連結
し上記形鋼の両端を挟んで固定する手段と、上記折り曲
げ用液圧シリンダーに連結し上記形鋼の折り曲げ位置に
当接して加圧力を印加するパンチと、該パンチの両側で
上記形鋼の長手方向に沿って上記形鋼の外表面に接触付
勢し上記パンチの動作に連動して型形状を形成する手段
とを含む構成としたものである。In order to achieve the above-mentioned object, a shape-steel bending apparatus according to the present invention is an apparatus for bending a shape steel in a direction orthogonal to the longitudinal direction, which is composed of an upper die and a lower die. A mold, a mold clamping hydraulic cylinder for clamping the bending mold, and a bending hydraulic cylinder arranged to face each other across the folding position, wherein the upper mold and the lower mold are respectively the mold clamping hydraulic pressure. Means for fixing the shaped steel by sandwiching both ends of the shaped steel, a punch connected to the bending hydraulic cylinder and abutting the bending position of the shaped steel to apply a pressing force, and the punch on both sides of the punch. Means for contacting and urging the outer surface of the shaped steel along the longitudinal direction of the shaped steel to form a die shape in conjunction with the operation of the punch.
【０００５】本発明に係る形鋼折り曲げ装置は、上記形
鋼の両端を挟んで固定する手段手段が、上記パンチに対
する相対位置を固定したローラーであり、上記型形状を
形成する手段が、上記パンチにより加圧点の中心線上に
位置する回転中心の回りを互いに逆方向へ揺動可能な一
対の保持プレートと、該保持プレートの揺動に連動して
上記パンチによる加圧方向に沿って移動可能な複数の追
随体からなり、該追随体が、上記保持プレートに接触す
るガイドローラー及び上記形鋼の外表面に接触させる追
随ローラーと、両ローラーを支持するとともに上記追随
ローラーを上記形鋼側へ突出付勢するバネ体とからなる
構成とすることができる。[0005] In the section steel bending apparatus according to the present invention, the means for fixing the both sides of the section steel is a roller having a fixed position relative to the punch, and the means for forming the mold shape is the punch. And a pair of holding plates that can swing in opposite directions around a rotation center located on the center line of the pressing point, and can move along the pressing direction of the punch in conjunction with the swing of the holding plate. A plurality of followers, the follower is a guide roller that contacts the holding plate and a follower roller that contacts the outer surface of the shaped steel, and both the rollers are supported and the follower rollers are moved toward the shaped steel. It can be configured to include a spring body that protrudes and biases.
【０００６】[0006]
【実施例】以下本発明の実施例を図面を参照して説明す
る。図１は本発明に係る形鋼折り曲げ装置の一実施例の
概略構成を加工開始前の状態で示し、図２は同装置の加
工開始後の状態を示す正面図である。また図３は本実施
例の要部構造を概略的に示す斜視図である。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a schematic configuration of an embodiment of a shaped steel bending apparatus according to the present invention in a state before processing is started, and FIG. 2 is a front view showing a state after processing is started in the apparatus. FIG. 3 is a perspective view schematically showing the structure of the main part of this embodiment.
【０００７】まず図１を用いて本実施例装置の構造を説
明する。図示のように本実施例装置は、上下のベース
１、２間をタイロッド３・・・で連結し、上ベース１上
に液圧によって最大加圧力を発生する一対のメインシリ
ンダー４、４を設け、これらのロッドをタイロッド３に
支持させたラム５に連結してラム５を上下動可能とし、
リニアスケール等で精密に位置決め制御可能なサブシリ
ンダー６をラム５にメインシリンダー４、４の間に位置
するように配し、さらに下ベース２に上側のサブシリン
ダー６と対向するこれも精密に位置決め制御可能なサブ
シリンダー７を設けてある。そしてサブシリンダー６、
７のロッド端に取り付けた上下のパンチ８、９を含む折
り曲げ型をラム５と下ベース２間に形成してある。First, the structure of the apparatus of this embodiment will be described with reference to FIG. As shown in the drawing, the apparatus of this embodiment connects the upper and lower bases 1 and 2 with tie rods 3 and provides a pair of main cylinders 4 and 4 on the upper base 1 for generating a maximum pressing force by hydraulic pressure. By connecting these rods to a ram 5 supported by a tie rod 3, the ram 5 can be moved up and down,
A sub-cylinder 6 that can be precisely positioned and controlled by a linear scale or the like is arranged on the ram 5 so as to be positioned between the main cylinders 4 and 4, and the lower base 2 that faces the upper sub-cylinder 6 is also precisely positioned. A controllable sub-cylinder 7 is provided. And sub cylinder 6,
A bending die including upper and lower punches 8 and 9 attached to the rod end of the rod 7 is formed between the ram 5 and the lower base 2.
【０００８】折り曲げ型は、ほぼ同一の構成の上型１０
と、下型１１とからなる。上型１０は、上パンチ８と、
上パンチ８から等間隔離してラム５の下面に垂下した保
持部材１２に取り付けた左右それぞれ一対（図３参照）
の固定ローラー１３と、上パンチ８と固定ローラー１３
の間に所定数配した追随体１４・・・及び上パンチ８の
上端近傍と保持部材１２の途中位置にそれぞれ回転可能
に両端をそれぞれ軸支した一対の保持プレート１５、１
５とからなる。また下型１１は、固定ローラー１３を取
り付ける保持部材１２を下側のベース２上に立設した点
と、上型とは向きが上下逆となり、それぞれが上型の要
素と対向する以外は上型１０の構成と同一である。The bending mold is an upper mold 10 having almost the same structure.
And a lower mold 11. The upper die 10 includes an upper punch 8 and
A pair of right and left sides attached to a holding member 12 which is equally spaced from the upper punch 8 and hangs on the lower surface of the ram 5 (see FIG. 3).
Fixed roller 13, upper punch 8 and fixed roller 13
And a pair of holding plates 15, 1 rotatably supported at both ends in the vicinity of the upper end of the upper punch 8 and at an intermediate position of the holding member 12, respectively.
It consists of 5. In addition, the lower mold 11 has an upper side except that the holding member 12 for attaching the fixing roller 13 is erected on the lower base 2 and the upper mold is turned upside down, and each faces the upper mold element. The configuration is the same as that of the mold 10.
【０００９】追随体１４はそれぞれ、上型１０において
は保持プレート１５の下面に、下型１１においては上面
に接触するガイドローラー１６と、上型１０と下型１１
の間に投入した加工対象となる形鋼１７の外表面に接触
させる追随ローラー１８と、これらガイドローラー１６
と追随ローラー１８を支持するとともに追随ローラー１
８を形鋼１７側へ突出付勢するバネ１９を内蔵する型プ
レート２０から構成してある。なおこの追随体１４の数
や配置間隔、配置態様は、図示の例に限定されない。ま
たバネ１９は、追随ローラー１８を型プレート２０から
突出付勢する、即ち追随ローラー１８が型プレート２０
から離れるように付勢できるものであれば、スプリング
コイルだけでなく種々公知の手段を採用できる。The follower 14 has a guide roller 16 in contact with the lower surface of the holding plate 15 in the upper die 10, a guide roller 16 in contact with the upper surface in the lower die 11, and the upper die 10 and the lower die 11.
A follower roller 18 that comes into contact with the outer surface of a section steel 17 to be machined,
And the following roller 18 and the following roller 1
8 is constituted by a mold plate 20 having a built-in spring 19 for urging and projecting it toward the shaped steel 17. The number, arrangement intervals, and arrangement of the followers 14 are not limited to the illustrated example. Further, the spring 19 urges the follower roller 18 to project from the mold plate 20, that is, the follower roller 18 makes the mold plate 20.
As long as it can be urged away from, not only the spring coil but also various known means can be adopted.
【００１０】また保持プレート１５は、保持部材１２へ
の取り付け点２１についても、加圧点である上下のパン
チ８、９の先端を結ぶ線上に位置する上下のパンチ８、
９への取り付け点２２についても、その回りで上下方向
で揺動可能となっている。ただし、後述のように保持プ
レート１５が取り付け点２２を中心に揺動したときに、
取り付け点２１、２２間の距離が変わるので、保持部材
１２への取り付け点２１では保持プレート１５側に長孔
等を設けることによってその距離変化を吸収できるよう
にしておく。また保持プレート１５の揺動における回転
中心となる取り付け点２２は、上下のサブシリンダー
６、７のロッド中心を通る線上に位置させる。The holding plate 15 also has an attachment point 21 to the holding member 12, and the upper and lower punches 8 and 9 located on a line connecting the tips of the upper and lower punches 8 and 9 which are pressure points.
The point of attachment 22 to 9 is also pivotable in the vertical direction around it. However, when the holding plate 15 swings around the attachment point 22 as described below,
Since the distance between the attachment points 21 and 22 changes, at the attachment point 21 to the holding member 12, a long hole or the like is provided on the holding plate 15 side so that the change in distance can be absorbed. Further, the attachment point 22, which is the center of rotation in swinging the holding plate 15, is located on a line passing through the rod centers of the upper and lower sub-cylinders 6 and 7.
【００１１】次に本実施例装置の動作を図２と、図４以
下も参照して説明する。なお既に述べたように基本的に
上型１０と下型１１は上下対称の同一構造であり、上下
どちらへでも加工を行なうことが可能であるが、以下で
は希望する角度まで下向きに加工を行なう場合を説明す
る。Next, the operation of the apparatus according to this embodiment will be described with reference to FIGS. As described above, basically, the upper mold 10 and the lower mold 11 have the same structure which is vertically symmetrical, and can be machined either up or down. In the following, machining is performed downward to a desired angle. The case will be described.
【００１２】まず加工対象とする形鋼１７（図示の例で
は図４に示すような山形鋼）を上型１０と下型１１の間
に入れ、メインシリンダー４を駆動してラム５を下降さ
せ、上下の固定ローラー１３を形鋼１７の両端表面に圧
接させてクランプする。クランプ状態では図３に示すよ
うに形鋼１７の両辺を上型１０と下型１１の対応する固
定ローラー１３、追随ローラー１８で挟む形となる。形
鋼１７をクランプした後、上側のサブシリンダー６を駆
動し、ストロークを精密に制御しつつ発生した加圧力Ｆ
１を上側パンチ８によって形鋼１７に印加し、形鋼１７
の両端にＭ＝Ｌ１×Ｆ２なるモーメントＭを加えて折り
曲げる。サブシリンダー６のストロークは形鋼１７を折
り曲げようとする角度によって調整する。First, a shaped steel 17 to be machined (in the illustrated example, an angle steel as shown in FIG. 4) is inserted between the upper die 10 and the lower die 11, and the main cylinder 4 is driven to lower the ram 5. , The upper and lower fixed rollers 13 are pressed against the both end surfaces of the shaped steel 17 and clamped. In the clamped state, as shown in FIG. 3, both sides of the shaped steel 17 are sandwiched between the corresponding fixed rollers 13 and the following rollers 18 of the upper mold 10 and the lower mold 11. After clamping the steel 17, the upper sub-cylinder 6 is driven to control the stroke F while controlling the stroke precisely.
1 is applied to the shaped steel 17 by the upper punch 8 and the shaped steel 17
Is applied to both ends of the frame and then bent. The stroke of the sub-cylinder 6 is adjusted according to the angle at which the section steel 17 is bent.
【００１３】ところで一般に、山形鋼を両端及び中央に
力を掛けて折り曲げようとすると、図４に示すように、
中央の折り曲げ部位Ｘでアングル形状のつぶれが生じて
から折り曲げが始まることになる。固定ローラー１３と
追随ローラー１８を形鋼１７の両辺に図３に示すように
当接させるのは、上述のアングル形状のつぶれを防止す
るものである。[0013] Generally, when an angle steel is bent by applying force to both ends and the center, as shown in FIG.
The bending starts after the angle-shaped collapse occurs at the center bending portion X. The fixed roller 13 and the following roller 18 are brought into contact with both sides of the shaped steel 17 as shown in FIG. 3 in order to prevent the above-described collapse of the angle shape.
【００１４】即ち、型プレート２０内部に収納したバネ
１９の付勢力で追随ローラー１８を形鋼１７の外表面に
強く押し付け、形鋼１７を４方から圧縮し続ける構造と
し、しかも折り曲げが進んで角度Ａが小さくなるに連れ
て保持プレート１５とガイドローラー１６の間及び追随
ローラー１８と形鋼１７の間の接触点位置が変化し（図
５矢印Ｙ参照）、バネ１９の反発力が強くなって形鋼１
７の板厚方向には圧縮力を加えながら、外表面と平行な
追随ローラー１８の回転により引張り力の発生を抑え、
これによって形鋼１７の折り曲げ部位Ｘにおけるつぶれ
変形が防止する構造となっている。That is, the follower roller 18 is strongly pressed against the outer surface of the shaped steel 17 by the urging force of the spring 19 housed inside the die plate 20 so that the shaped steel 17 is continuously compressed from four directions, and the bending progresses. As the angle A becomes smaller, the contact point positions between the holding plate 15 and the guide roller 16 and between the follower roller 18 and the shaped steel 17 change (see arrow Y in FIG. 5), and the repulsive force of the spring 19 becomes stronger. Shaped steel 1
While applying a compressive force in the thickness direction of 7, the rotation of the following roller 18 parallel to the outer surface suppresses the generation of a tensile force,
As a result, a structure is provided in which the crushing deformation of the bent portion X of the shaped steel 17 is prevented.
【００１５】図２は折り曲げが最終的に完了した状態を
示すが、折り曲げ開始からこの最終状態に至る過程を説
明する。形鋼１７を折り曲げるために上側のサブシリン
ダー６によって印加する加工力Ｆ１は、図６に示すよう
に、下側のパンチ１１を通して下側のサブシリンダー７
に伝えられる力Ｆ３と、左右の固定ローラー１３から下
側のベース１に伝えられる力Ｆ２に分けられる。当然、
力のバランスより、Ｆ１＝Ｆ３＋Ｆ２×２である。ここ
で、力Ｆ２は加工を行う力であるが、力Ｆ３は直接加工
に使われる力ではなく、形鋼１７の形を変形させないよ
うに働く保持力である。そして、Ｆ１＞＞Ｆ３とＦ３が
Ｆ１に対して相対的にかなり小さくなり、Ｍ＝Ｌ１×Ｆ
２なるモーメントＭが形鋼１７に加わり、折り曲げが行
なわれる（Ｆ３＝０とすると形鋼１７は放物線状に湾曲
するだけになり、またＦ１＝Ｆ３とするとＦ２＝０とな
って形鋼１７の両端にモーメントが掛からなくなり、形
鋼１７に変形は生じなくなる）。FIG. 2 shows a state in which the bending is finally completed. The process from the start of the bending to the final state will be described. As shown in FIG. 6, the processing force F1 applied by the upper sub-cylinder 6 to bend the shaped steel 17 passes through the lower punch 11 and the lower sub-cylinder 7.
And the force F2 transmitted from the left and right fixed rollers 13 to the lower base 1. Of course,
From the balance of the forces, F1 = F3 + F2 × 2. Here, the force F2 is a force for working, but the force F3 is not a force used for working directly, but a holding force that works so as not to deform the shape of the shaped steel 17. Then, F1 >> F3 and F3 become considerably smaller than F1, and M = L1 × F
The moment M of 2 is applied to the shaped steel 17 and the bending is performed (if F3 = 0, the shaped steel 17 only bends in a parabolic shape, and if F1 = F3, F2 = 0, and the shaped steel 17 is bent). The moment is not applied to both ends, and the shaped steel 17 is not deformed).
【００１６】従って、Ｆ３の大きさは０＜Ｆ３＜Ｆ１と
して加圧を行なう必要があるが、この場合でも単に上側
のパンチ８を押し下げていくだけでは形鋼１７の変形は
放物線に近い状態のままであり、直線状に折り曲げた形
状にはならない。即ち図７に示すように、上側の保持プ
レート１５、１５と形鋼１７とは同じ傾きとなって、上
型１０を構成するパンチ８、追随ローラー１８はほぼ同
様に形鋼１７の上面に当たるが、下型１１では固定ロー
ラー１３と、そのすぐ内側の追随ローラー１８ａは形鋼
１７の下面に当たるものの、中央側の追随ローラー１８
ｂとパンチ９は形鋼１７から離れてしまう状態となる
（ただし図７は誇張して描いてある）。これは、形鋼１
７は放物線状に曲がっていて追随ローラー１８ａが中心
側の追随ローラー１８ｂよりも形鋼１７と強く接触する
ことになり、保持プレート１５がこの追随ローラー１８
ａと形鋼１７の強い接触に押されて回動してしまい、パ
ンチ９と中央側の追随ローラー１８ｂにとっては保持プ
レート１５が回動しすぎる状態となるためである。Therefore, the size of F3 needs to be 0 <F3 <F1 to apply pressure, but even in this case, the deformation of the shaped steel 17 remains close to a parabola simply by pushing down the upper punch 8. Therefore, the shape is not linearly bent. That is, as shown in FIG. 7, the upper holding plates 15, 15 and the shaped steel 17 have the same inclination, and the punch 8 and the follower roller 18 constituting the upper die 10 hit the upper surface of the shaped steel 17 in substantially the same manner. In the lower mold 11, the fixed roller 13 and the follower roller 18a immediately inside the fixed die 13 hit the lower surface of the shaped steel 17, but the follower roller 18 on the center side
b and the punch 9 are separated from the shaped steel 17 (however, FIG. 7 is exaggeratedly drawn). This is shaped steel 1
7 has a parabolic shape, and the follower roller 18a comes into contact with the shaped steel 17 more strongly than the follower roller 18b on the center side.
This is due to the fact that the holding plate 15 is rotated by being pressed by the strong contact between the a and the shaped steel 17, and the holding plate 15 is rotated too much by the punch 9 and the following roller 18 b on the center side.
【００１７】このため、いったん図７の状態まで加工し
た後、決め押しを行なって最終的に加工を終了する。即
ち、図７の状態から上型１０のパンチ８は固定したまま
（サブシリンダー６の液圧が降下しないようにしておく
必要がある）、下側のパンチ９を先端が形鋼１７の下面
に当接するまで単独で上昇させて形鋼１７を下方から加
圧する。すると、いわば曲がりすぎた部分を押し戻すこ
とになり、上型１０、下型１１とも追随ローラー１８が
すべて形鋼１７の傾きと一致するようになって形鋼１７
は直線的に折り曲げられた形状になる。この決め押しに
際して、パンチ８、９が形鋼１７に若干食い込むところ
まで強く押して加工すると、形鋼１７に残留する内部応
力が除去され、折り曲げた形鋼１７を装置外へ取り出し
たときにスプリングバック（この場合は折り曲げ角度の
広がり）が防止できる。For this reason, after processing to the state of FIG. 7 once, depressing is performed and finally the processing is completed. That is, while the punch 8 of the upper die 10 is fixed from the state of FIG. 7 (it is necessary to keep the hydraulic pressure of the sub cylinder 6 from dropping), the tip of the lower punch 9 is attached to the lower surface of the shaped steel 17. The section steel 17 is raised independently until it comes into contact, and the section steel 17 is pressed from below. Then, so to speak, the excessively bent portion is pushed back, so that the follow rollers 18 of both the upper mold 10 and the lower mold 11 coincide with the inclination of the section steel 17 and the section steel 17
Has a linearly bent shape. In this final pressing, if the punches 8 and 9 are strongly pressed to a point where they bite into the shaped steel 17, the internal stress remaining in the shaped steel 17 is removed, and when the bent shaped steel 17 is taken out of the device, spring back is performed. (In this case, the expansion of the bending angle) can be prevented.
【００１８】なお本発明者等の行なった折り曲げ実験に
よれば折り曲げ角度Ａは１５０〜２１０度程度が加圧力
と液圧シリンダーのストロークからみて最適であった
が、本発明はこれに限定されることはない。また以上説
明してきた実施例は山形鋼を加工対象とし、また加工方
向を上下方向としているが、Ｈ形鋼その他の形鋼につい
ても実施可能であり、加工方向は加工対象を挟み付ける
方向であれば上下方向に限定されず水平方向その他の方
向でよい。According to a bending experiment conducted by the present inventors, a bending angle A of about 150 to 210 degrees was optimal in view of the pressing force and the stroke of the hydraulic cylinder, but the present invention is limited to this. Never. In the embodiment described above, the angle iron is to be machined and the machining direction is the vertical direction. However, the present invention can also be applied to H-section steel and other shaped steels. The direction is not limited to the vertical direction, but may be the horizontal direction or any other direction.
【００１９】[0019]
【発明の効果】本発明に係る形鋼折り曲げ装置は以上説
明してきたようなものなので、熱間加工を行わずに冷間
で所望の角度に山形鋼、Ｈ形鋼などの形鋼を種々の角度
に効率よく折り曲げ加工できるようになるという効果を
奏する。Since the section steel bending apparatus according to the present invention is as described above, various sections such as angle iron and H-section steel can be coldly formed at a desired angle without performing hot working. This has the effect that bending can be performed efficiently at an angle.
【図１】本発明に係る形鋼折り曲げ装置の一実施例の概
略構成図である。FIG. 1 is a schematic configuration diagram of an embodiment of a section steel bending apparatus according to the present invention.
【図２】図１の装置の加工開始後の状態を示す正面図で
ある。FIG. 2 is a front view showing a state of the apparatus shown in FIG. 1 after processing is started.
【図３】図１の装置の要部構造を概略的に示す斜視図で
ある。FIG. 3 is a perspective view schematically showing a main structure of the apparatus of FIG. 1;
【図４】山形鋼を折り曲げた際の折り曲げ部位の変形を
示す斜視図である。FIG. 4 is a perspective view showing deformation of a bent portion when the angle iron is bent.
【図５】図１の装置のバネと追随ローラーの関係を示す
正面図である。FIG. 5 is a front view showing a relationship between a spring and a follower roller of the apparatus of FIG. 1;
【図６】図１の装置において形鋼折り曲げを開始した状
態を概略的に示す部分正面図である。FIG. 6 is a partial front view schematically showing a state where bending of a shape steel is started in the apparatus of FIG. 1;
【図７】図１の装置において形鋼折り曲げを終了し、決
め押しを開始する前の状態を概略的に示す部分正面図で
ある。FIG. 7 is a partial front view schematically showing a state in which the bending of the shape steel is completed in the apparatus of FIG. 1 and before the pressing is started.
１、２ ベース ３ タイロッド ４ メインシリンダー ５ ラム ６、７ サブシリンダー ８、９ パンチ １０ 上型 １１ 下型 １２ 保持部材 １３ 固定ローラー １４ 追随体 １５ 保持プレート １６ ガイドローラー １７ 形鋼 １８、１８ａ、１８ｂ 追随ローラー １９ バネ ２０ 型プレート ２１、２２ 取り付け点 Ａ 折り曲げ角度 Ｌ１ パンチと固定ローラーの距離 Ｆ１ 加圧力 Ｆ２ 下パンチの逆圧 Ｆ３ 固定側反力 Ｘ 形鋼の折り曲げ部位 Ｙ 追随ローラーと形鋼間の接触点位置変位量 1, 2 Base 3 Tie rod 4 Main cylinder 5 Ram 6, 7 Subcylinder 8, 9 Punch 10 Upper die 11 Lower die 12 Holding member 13 Fixed roller 14 Follower 15 Holding plate 16 Guide roller 17 Shaped steel 18, 18a, 18b Follow Roller 19 Spring 20 Mold plate 21, 22 Attaching point A Bending angle L1 Distance between punch and fixed roller F1 Pressing force F2 Reverse pressure of lower punch F3 Fixed side reaction force X Bending portion of section steel Y Contact between following roller and section steel Point position displacement
Claims (2)
げる装置であって、上型及び下型からなる折り曲げ型
と、該折り曲げ型を型締めする型締め用液圧シリンダー
と、折り曲げ位置を挟んで対向配置する折り曲げ用液圧
シリンダーとからなり、上記上型及び下型がそれぞれ、
上記型締め用液圧シリンダーに連結し上記形鋼の両端を
挟んで固定する手段と、上記折り曲げ用液圧シリンダー
に連結し上記形鋼の折り曲げ位置に当接して加圧力を印
加するパンチと、該パンチの両側で上記形鋼の長手方向
に沿って上記形鋼の外表面に接触付勢し上記パンチの動
作に連動して型形状を形成する手段とを含むことを特徴
とする形鋼折り曲げ装置。1. A device for bending a shaped steel in a direction orthogonal to the longitudinal direction, comprising a bending die including an upper die and a lower die, a die clamping hydraulic cylinder for clamping the bending die, and a folding position. It consists of a bending hydraulic cylinder that is placed opposite to each other, and the upper mold and the lower mold are respectively
A means for connecting to the mold clamping hydraulic cylinder and fixing both ends of the shaped steel by sandwiching it, and a punch connected to the bending hydraulic cylinder and abutting the bending position of the shaped steel to apply a pressing force, Bending a shaped steel, comprising means for contacting and urging the outer surface of the shaped steel on both sides of the punch along the longitudinal direction of the shaped steel to form a die shape in conjunction with the movement of the punch. apparatus.
段が、上記パンチに対する相対位置を固定したローラー
であり、上記型形状を形成する手段が、上記パンチによ
り加圧点の中心線上に位置する回転中心の回りを互いに
逆方向へ揺動可能な一対の保持プレートと、該保持プレ
ートの揺動に連動して上記パンチによる加圧方向に沿っ
て移動可能な複数の追随体からなり、該追随体が、上記
保持プレートに接触するガイドローラー及び上記形鋼の
外表面に接触させる追随ローラーと、両ローラーを支持
するとともに上記追随ローラーを上記形鋼側へ突出付勢
するバネ体とからなることを特徴とする請求項１の形鋼
折り曲げ装置。2. The means for fixing both ends of the section steel is a roller having a fixed position relative to the punch, and the means for forming the mold is formed on the center line of the pressing point by the punch. A pair of holding plates capable of swinging in opposite directions around the center of rotation, and a plurality of followers movable in the direction of pressing by the punch in conjunction with the swinging of the holding plates, The follower is a guide roller that contacts the holding plate and a follower roller that contacts the outer surface of the shaped steel, and a spring body that supports both rollers and biases the follower roller toward the shaped steel. 2. The shape bending apparatus according to claim 1, wherein
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6171922A JP2631955B2 (en) | 1994-06-29 | 1994-06-29 | Shape bending equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6171922A JP2631955B2 (en) | 1994-06-29 | 1994-06-29 | Shape bending equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0810855A true JPH0810855A (en) | 1996-01-16 |
| JP2631955B2 JP2631955B2 (en) | 1997-07-16 |
Family
ID=15932343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6171922A Expired - Lifetime JP2631955B2 (en) | 1994-06-29 | 1994-06-29 | Shape bending equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2631955B2 (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102581085A (en) * | 2012-02-28 | 2012-07-18 | 江苏奔宇车身制造有限公司 | Integrated bending forming device for abnormally-shaped tube |
| CN106513475A (en) * | 2016-12-26 | 2017-03-22 | 唐山耐特铁塔制造有限公司 | Tool for angle steel double-surface bending on press |
| CN108097756A (en) * | 2018-02-05 | 2018-06-01 | 辽宁忠旺铝合金精深加工有限公司 | Split type section bar bending Multifunction turning apparatus |
| CN109848258A (en) * | 2018-11-29 | 2019-06-07 | 广州欧华电气有限公司 | A kind of bend forming die |
| CN110369565A (en) * | 2019-08-09 | 2019-10-25 | 贵阳品创科技有限公司 | A kind of dog-ear processing unit of hardware sheet metal component |
| CN110434203A (en) * | 2019-08-22 | 2019-11-12 | 刘文琦 | A kind of aluminium alloy extrusions manufacture roll bending is mechanical |
| CN111215514A (en) * | 2020-01-15 | 2020-06-02 | 程笔云 | Processing method of section steel for steel structure manufacturing |
| CN111633436A (en) * | 2020-07-08 | 2020-09-08 | 四川省富兴电力金具制造有限公司 | Automatic processing equipment and method for flat iron channel steel combination |
| CN113290170A (en) * | 2021-04-20 | 2021-08-24 | 四川川交路桥有限责任公司 | Adjustable bending device for processing reinforcing steel bars |
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|---|---|---|---|---|
| CN108160769A (en) * | 2017-12-22 | 2018-06-15 | 马鞍山市鑫龙特钢有限公司 | A kind of steel pipe apparatus for bending |
| CN111136139B (en) * | 2019-11-19 | 2021-09-07 | 宁波昌扬机械工业有限公司 | Intelligent numerical control stepless regulation and control bending machine with improved structure |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57137029A (en) * | 1981-02-19 | 1982-08-24 | Sanwa Koki Kk | Working device for press machine |
-
1994
- 1994-06-29 JP JP6171922A patent/JP2631955B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57137029A (en) * | 1981-02-19 | 1982-08-24 | Sanwa Koki Kk | Working device for press machine |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102581085A (en) * | 2012-02-28 | 2012-07-18 | 江苏奔宇车身制造有限公司 | Integrated bending forming device for abnormally-shaped tube |
| CN106513475A (en) * | 2016-12-26 | 2017-03-22 | 唐山耐特铁塔制造有限公司 | Tool for angle steel double-surface bending on press |
| CN106513475B (en) * | 2016-12-26 | 2018-01-26 | 唐山耐特铁塔制造有限公司 | The curved frock of the two-sided system of angle steel is carried out on forcing press |
| CN108097756A (en) * | 2018-02-05 | 2018-06-01 | 辽宁忠旺铝合金精深加工有限公司 | Split type section bar bending Multifunction turning apparatus |
| CN109848258A (en) * | 2018-11-29 | 2019-06-07 | 广州欧华电气有限公司 | A kind of bend forming die |
| CN109848258B (en) * | 2018-11-29 | 2020-10-02 | 广州纬华节能设备有限公司 | Bending forming die |
| CN110369565A (en) * | 2019-08-09 | 2019-10-25 | 贵阳品创科技有限公司 | A kind of dog-ear processing unit of hardware sheet metal component |
| CN110369565B (en) * | 2019-08-09 | 2021-02-09 | 深圳市准牧精密科技有限公司 | Dog-ear processing apparatus that five metals sheet metal component was used |
| CN110434203A (en) * | 2019-08-22 | 2019-11-12 | 刘文琦 | A kind of aluminium alloy extrusions manufacture roll bending is mechanical |
| CN111215514B (en) * | 2020-01-15 | 2021-08-24 | 江苏一诺钢结构工程有限公司 | Processing method of section steel for manufacturing steel structure |
| CN111215514A (en) * | 2020-01-15 | 2020-06-02 | 程笔云 | Processing method of section steel for steel structure manufacturing |
| CN111633436A (en) * | 2020-07-08 | 2020-09-08 | 四川省富兴电力金具制造有限公司 | Automatic processing equipment and method for flat iron channel steel combination |
| CN111633436B (en) * | 2020-07-08 | 2021-11-30 | 四川省富兴电力金具制造有限公司 | Automatic processing equipment and method for flat iron channel steel combination |
| CN113290170A (en) * | 2021-04-20 | 2021-08-24 | 四川川交路桥有限责任公司 | Adjustable bending device for processing reinforcing steel bars |
| CN113858057A (en) * | 2021-09-28 | 2021-12-31 | 东风汽车底盘***有限公司 | Rapid stress shot blasting prepressing clamp and method for short leaf spring of steel plate |
| CN113858057B (en) * | 2021-09-28 | 2023-08-15 | 东风汽车底盘***有限公司 | Rapid stress shot blasting pre-pressing clamp and method for leaf spring short piece |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2631955B2 (en) | 1997-07-16 |
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