JP4899802B2 - Bending machine with bending length adjustment mechanism - Google Patents

Bending machine with bending length adjustment mechanism Download PDF

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JP4899802B2
JP4899802B2 JP2006298783A JP2006298783A JP4899802B2 JP 4899802 B2 JP4899802 B2 JP 4899802B2 JP 2006298783 A JP2006298783 A JP 2006298783A JP 2006298783 A JP2006298783 A JP 2006298783A JP 4899802 B2 JP4899802 B2 JP 4899802B2
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bending
mold
traveling body
bending die
die
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JP2008114242A (en
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俊逸 伊藤
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Murata Machinery Ltd
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Murata Machinery Ltd
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Priority to JP2006298783A priority Critical patent/JP4899802B2/en
Priority to EP20070019369 priority patent/EP1918037B1/en
Priority to DE200760001569 priority patent/DE602007001569D1/en
Priority to CN2007101692090A priority patent/CN101172291B/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/02—Bending sheet metal along straight lines, e.g. to form simple curves on press brakes without making use of clamping means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D37/00—Tools as parts of machines covered by this subclass
    • B21D37/04—Movable or exchangeable mountings for tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D37/00—Tools as parts of machines covered by this subclass
    • B21D37/14—Particular arrangements for handling and holding in place complete dies
    • B21D37/145—Die storage magazines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/04—Bending sheet metal along straight lines, e.g. to form simple curves on brakes making use of clamping means on one side of the work

Description

この発明は、板材の曲げ加工、例えばドアパネルにおける中窓用開口部の周囲の曲げ片の曲げ加工等を施す曲げ型長さ調整機構付き曲げ機械に関する。   The present invention relates to a bending machine with a bending die length adjusting mechanism that performs bending of a plate material, for example, bending of a bent piece around an opening for a middle window in a door panel.

従来、図１６に示すように、板金製のドアパネル９１において、採光等のための中窓用開口部９２を設け、この開口部９２の周囲に、ガラス板の嵌め込み用の曲げ片９３を加工したものがある。この曲げ片９３の曲げ加工は、ドアパネル９１の開口部９２の周辺をこき上げる、こき曲げ加工によって行われる。
開口部９２の縦横寸法は、ドアパネル９１の種類によって種々異なり、通常は、開口部９２の寸法種類毎に曲げ型を変える専用の曲げ機械が用いられている。
しかし、開口部９２の縦横寸法の違い毎に別の曲げ型を準備するのでは、金型種類が多くなって不経済であり、金型個数を制約すると、多種類の形状の開口部９２の曲げ加工を行うことができない。 Conventionally, as shown in FIG. 16, in the door panel 91 made of sheet metal, an opening 92 for a middle window for daylighting or the like is provided, and a bent piece 93 for fitting a glass plate is processed around the opening 92. There is something. The bending process of the bending piece 93 is performed by a bending process in which the periphery of the opening 92 of the door panel 91 is rolled up.
The vertical and horizontal dimensions of the opening 92 vary depending on the type of the door panel 91, and usually, a dedicated bending machine that changes the bending die for each dimension of the opening 92 is used.
However, it is uneconomical to prepare different bending dies for each difference in the vertical and horizontal dimensions of the opening 92, which is uneconomical due to the increase in the number of molds. Bending cannot be performed.

このような課題を解消するものとして、中窓寸法に応じて、こき曲げ型の長さを調整可能とした曲げ機械が提案されている（例えば、特許文献１，特許文献２）。これらは、複数の曲げ型を一列に並べた曲げ型群を用い、曲げ型の使用個数を選択して長さを調整するものである。
特公平５−３８６５９号公報 特許第３２０１３０８号公報 In order to solve such a problem, a bending machine has been proposed in which the length of the bending tool can be adjusted according to the size of the middle window (for example, Patent Document 1 and Patent Document 2). These use a bending die group in which a plurality of bending dies are arranged in a row, and the length is adjusted by selecting the number of bending dies used.
Japanese Patent Publication No. 5-38659 Japanese Patent No. 3201308

従来の曲げ型長さ調整機構付きの曲げ機械は、いずれも、曲げ機械本体内で曲げ型の長さを調整するものであるため、調整形態に制限があった。
例えば、図１６のドアパネル９１は、開口部９２の周囲の各辺毎に曲げ片９３が分離さている。このような曲げ片９３の曲げ加工は、従来の曲げ型長さ調整機構付きの曲げ機械によっても可能である。 Since all the conventional bending machines with a bending die length adjusting mechanism adjust the length of the bending die within the bending machine body, there is a limitation on the adjustment form.
For example, the door panel 91 of FIG. 16 has a bent piece 93 separated for each side around the opening 92. Such bending of the bending piece 93 can also be performed by a conventional bending machine with a bending die length adjusting mechanism.

しかし、図１５に示すように、曲げ片９３を四周に連続したものとしたい場合がある。この場合、開口部９２の隣合う辺間のコーナ部に、曲げ片９３が曲線状に続く角丸め部９３ａの加工が必要となる。このような連続した曲げ片９３を加工する方法として、図１４に示すように、開口部９２の各コーナ部に角丸め部９３ａを曲げ加工した後、各辺を曲げ加工して図１５のように四周に連続した曲げ片９３とすることを考えた。
しかし、従来の曲げ型長さ調整機構付きの曲げ機械において、曲げ型群の端から曲げ型を増減するものであるため、曲げ型群の両端が角張ったものになる。すなわち、曲げ型群の各曲げ型は、連続した形状とする必要から、曲げ型の隣接部を丸めた形状とすることができない。そのため、曲げ型群の両端が角張ったものになるが、図１５のような角丸め部９３ａを有する曲げ片９３の曲げ加工は、上記のような両端が角ばった曲げ型群では加工することができない。 However, as shown in FIG. 15, there is a case where it is desired that the bent piece 93 is continuous in four rounds. In this case, it is necessary to process a rounded corner portion 93a in which a bent piece 93 continues in a curved shape at a corner portion between adjacent sides of the opening 92. As a method of processing such a continuous bent piece 93, as shown in FIG. 14, after rounding the corner rounding portion 93a at each corner portion of the opening 92, each side is bent and processed as shown in FIG. It was considered to be a bent piece 93 continuous in four rounds.
However, in a conventional bending machine with a bending die length adjusting mechanism, the bending die is increased or decreased from the end of the bending die group, so that both ends of the bending die group are angular. That is, each bending die in the bending die group needs to have a continuous shape, and thus cannot have a shape obtained by rounding an adjacent portion of the bending die. For this reason, both ends of the bending mold group are squared, but the bending piece 93 having the rounded corners 93a as shown in FIG. 15 can be bent in the bending mold group having both ends bent as described above. Can not.

この発明の目的は、曲げ型の長さ調整の形態に自由度が得られる曲げ型長さ調整機構付き曲げ機械を提供することである。
この発明の他の目的は、曲げ型群の長さを種々変更しても、曲げ型群の両端に丸みを持たせることができて、開口部のコーナ部分に角丸め部分を有するような曲げ片の加工が可能なものとすることである。
この発明のさらに他の目的は、曲げ型群を載せて走行する走行体に対して、任意個数の曲げ型の載置が、円滑に行えるようにすることである。 An object of the present invention is to provide a bending machine with a bending die length adjusting mechanism that can obtain a degree of freedom in the form of bending die length adjustment.
Another object of the present invention is to bend the corners of the opening so that the ends of the bending die group can be rounded even if the length of the bending die group is variously changed. It is possible to process a piece.
Still another object of the present invention is to enable smooth placement of an arbitrary number of bending dies on a traveling body that travels with the bending dies placed thereon.

この発明の曲げ型長さ調整機構付き曲げ機械は、一列に並ぶ複数の曲げ型からなる曲げ型群と、この曲げ型群に対して板材を相対的に昇降させるプレス駆動機構とを有し、前記曲げ型群により前記板材に曲げ加工を行う曲げ機械であって、前記曲げ型群の曲げ型並び方向の長さを調整する曲げ型長さ調整機構を設ける。
この曲げ型長さ調整機構は、前記曲げ型群が載せられ前記プレス駆動機構を備えた曲げ機械本体に対して前記曲げ型並び方向に出入りする走行体と、この走行体に設けられて走行体上の曲げ型群の両端を当接させる一対の当接部材と、いずれか一方または両方の当接部材を走行体に対して曲げ型並び方向に移動させる当接部材移動機構と、前記曲げ機械本体の外部で前記走行体の走行経路に沿って設けられ前記曲げ型群に対する余りの曲げ型が前記走行経路に沿って並べて載置される曲げ型保管台と、前記走行体上の曲げ型を前記曲げ型保管台上に押し出す降ろし用プッシャー機構と、前記曲げ型保管台上の任意個数の曲げ型を前記走行体上に載せる載置用プッシャー機構とを有するものとする。 The bending machine with a bending die length adjusting mechanism of the present invention has a bending die group composed of a plurality of bending dies arranged in a row, and a press drive mechanism for moving the plate material relative to the bending die group, A bending machine for bending the plate material with the bending die group, wherein a bending die length adjusting mechanism for adjusting the length of the bending die group in the bending die arrangement direction is provided.
The bending die length adjusting mechanism includes a traveling body that is placed on the bending mold group and on which the bending die group is placed and that moves in and out of the bending machine arrangement direction with respect to the bending machine main body provided with the press drive mechanism. A pair of abutting members that abut both ends of the upper bending die group, an abutting member moving mechanism that moves one or both of the abutting members relative to the traveling body in the bending die arrangement direction, and the bending machine A bending mold storage stand provided outside the main body along the traveling path of the traveling body and having a surplus bending mold for the bending mold group placed side by side along the traveling path; and a bending mold on the traveling body. A pusher mechanism for lowering pushed out onto the bending mold storage table and a mounting pusher mechanism for placing an arbitrary number of bending molds on the bending mold storage table on the traveling body are provided.

この構成によると、曲げ型長さ調整機構は、曲げ型群が載せられた走行体を曲げ機械本体に対して出入りさせ、曲げ機械本体の外部で、走行体に載せる曲げ型群の曲げ型の選択を行う。この場合に、走行体上に、曲げ型群の両端を当接させて位置決めする一対の当接部材と、この当接部材を移動させる当接部材移動機構とを設けており、走行体に載せられた種々の長さの曲げ型群を当接部材で固定することができる。そのため、曲げ型の長さ調整の形態に自由度が得られ、例えば、曲げ型群の両端の曲げ型を残し、中間の曲げ型の個数を変更することも可能となる。この中間の曲げ型個数の変更は、具体的には、次の構成で行える。   According to this configuration, the bending mold length adjusting mechanism allows the traveling body on which the bending mold group is placed to enter and exit the bending machine body, and the bending mold group of the bending mold group to be placed on the traveling body outside the bending machine body. Make a selection. In this case, the traveling body is provided with a pair of abutting members that are positioned by abutting both ends of the bending mold group, and an abutting member moving mechanism that moves the abutting member. The bending mold groups having various lengths can be fixed by the contact member. Therefore, it is possible to obtain a degree of freedom in the manner of adjusting the length of the bending die. For example, it is possible to change the number of intermediate bending dies while leaving the bending dies at both ends of the bending die group. Specifically, the intermediate number of bending dies can be changed by the following configuration.

前記走行体上の前記曲げ型群は、両端にそれぞれ位置する端部専用曲げ型を有し、これら端部専用曲げ型は、先端面における曲げ型群の並びの端が、曲げ型並び方向の断面において曲線となる曲面部とされ、前記当接部材移動機構は、曲げ機械本体に対して遠い方の端部専用曲げ型を、前記曲げ型保管台上における曲げ型の最大並び長さの端部から外れる位置まで移動可能とする。
このように端部専用曲げ型を設けた場合、曲げ型群の並びの端部の角を丸めて曲面部とすることができ、これにより、開口部のコーナ部分に角丸め部分を有するような曲げ片の加工が可能となる。上記のように端部専用曲げ型を設けても、当接部材移動機構を、曲げ機械本体に対して遠い方の端部専用曲げ型を、前記曲げ型保管台上における曲げ型の最大並び長さの端部から外れる位置まで移動可能なものとすることで、曲げ型群の中間の曲げ型の個数選択を行うことができる。 The said bending tool group on the previous SL traveling member has an end portion only bending tool located at both ends, only bending tool these ends, the end of the arrangement of the bending tool group at the tip surface, the bending tool arranging direction The abutting member moving mechanism has a bending portion dedicated to the end portion farther from the bending machine main body, and has a maximum arrangement length of bending dies on the bending die storage table. It is possible to move to a position that deviates from the end .
In this way, when the end-only bending die is provided, the corners of the end portions of the bending die group can be rounded to form a curved surface portion, whereby the corner portion of the opening has a rounded corner portion. Bending pieces can be processed. Even if an end-only bending die is provided as described above, the abutment member moving mechanism is arranged so that the end-only bending die far from the bending machine body is the maximum arrangement length of the bending die on the bending die storage table. By making it possible to move to a position that deviates from the end, the number of bending dies in the middle of the bending dies group can be selected.

前記載置用プッシャー機構が、前記曲げ型保管台上の曲げ型並び位置に沿って、前記走行経路と反対側の位置で複数並べて設けられた押し棒と、この押し棒の並びに回動経路が沿うように前記走行経路の反対側に配置された無端回動部材と、この無端回動部材を前記押し棒側へ進退させる回動部材進退機構と、前記無端回動部材の長さ方向の一部に長さ方向に並んで複数設けられ前記回動部材進退機構による前記無端回動部材の移動により前記押し棒を押す選択押し部材とを備える。
この構成によると、無端回動部材の回動によって、曲げ型保管台上の曲げ型並び位置に沿う選択押し部材の長さを調整でき、この調整した長さ分だけ曲げ型保管台上の曲げ型を走行体に載せることができる。そのため、走行体の曲げ型群の長さを円滑に調整することができる。 The pusher mechanism for placement described above includes a plurality of push rods arranged side by side at a position opposite to the travel route along a bending die arrangement position on the bending die storage table, and an arrangement path of the push rods. An endless rotation member disposed on the opposite side of the travel path, a rotation member advancing / retreating mechanism for moving the endless rotation member toward and away from the push rod, and a length direction of the endless rotation member. wherein by multiple provided the rotary member advancing and retracting mechanism aligned lengthwise section Ru and a selection pushing member to push the push rod by the movement of the endless pivoting member.
According to this configuration, the length of the selective pressing member along the bending mold arrangement position on the bending mold storage table can be adjusted by the rotation of the endless rotating member, and the bending on the bending mold storage table can be adjusted by this adjusted length. The mold can be placed on the traveling body. Therefore, the length of the bending mold group of the traveling body can be adjusted smoothly.

この発明の曲げ型長さ調整機構付き曲げ機械は、一列に並ぶ複数の曲げ型からなる曲げ型群と、この曲げ型群に対して板材を相対的に昇降させるプレス駆動機構とを有し、前記曲げ型群により前記板材に曲げ加工を行う曲げ機械であって、前記曲げ型群の曲げ型並び方向の長さを調整する曲げ型長さ調整機構を設け、この曲げ型長さ調整機構は、前記曲げ型群が載せられ前記プレス駆動機構を備えた曲げ機械本体に対して前記曲げ型並び方向に出入りする走行体と、この走行体に設けられて走行体上の曲げ型群の両端を当接させる一対の当接部材と、いずれか一方または両方の当接部材を走行体に対して曲げ型並び方向に移動させる当接部材移動機構と、前記曲げ機械本体の外部で前記走行体の走行経路に沿って設けられ前記曲げ型群に対する余りの曲げ型が前記走行経路に沿って並べて載置される曲げ型保管台と、前記走行体上の曲げ型を前記曲げ型保管台上に押し出す降ろし用プッシャー機構と、前記曲げ型保管台上の任意個数の曲げ型を前記走行体上に載せる載置用プッシャー機構とを有するため、曲げ型の長さ調整の形態に自由度を得ることができる。   The bending machine with a bending die length adjusting mechanism of the present invention has a bending die group composed of a plurality of bending dies arranged in a row, and a press drive mechanism for moving the plate material relative to the bending die group, A bending machine that performs bending on the plate material by the bending die group, and is provided with a bending die length adjusting mechanism that adjusts the length of the bending die group in the alignment direction of the bending die. A traveling body that is placed in the bending mold arrangement direction with respect to a bending machine body on which the bending mold group is mounted and has the press drive mechanism, and both ends of the bending mold group provided on the traveling body on the traveling body. A pair of contact members to be contacted, a contact member moving mechanism for moving one or both of the contact members with respect to the traveling body in a bending mold arrangement direction, and the traveling body outside the bending machine main body. It is provided along the traveling route and is for the bending mold group A bending mold storage base on which surplus bending dies are placed side by side along the travel path, a lowering pusher mechanism for pushing the bending mold on the traveling body onto the bending mold storage base, and the bending mold storage base Since there is a mounting pusher mechanism for placing an arbitrary number of bending dies on the traveling body, it is possible to obtain a degree of freedom in the manner of adjusting the length of the bending dies.

前記走行体上の前記曲げ型群は、両端にそれぞれ位置する端部専用曲げ型を有し、これら端部専用曲げ型は、先端面における曲げ型群の並びの端が、曲げ型並び方向の断面において曲線となる曲面部とされ、前記当接部材移動機構は、曲げ機械本体に対して遠い方の端部専用曲げ型を、前記曲げ型保管台上における曲げ型の最大並び長さの端部から外れる位置まで移動可能とした場合は、曲げ型群の長さを種々変更しても、曲げ型群の両端に丸みを持たせることができて、開口部のコーナ部分に角丸め部分を有するような曲げ片の加工が可能なものとなる。   The bending die group on the traveling body has end-only bending dies located at both ends, and these end-only bending dies are arranged such that the end of the bending die group on the tip surface is in the bending die arrangement direction. The abutting member moving mechanism has an end-only bending die far from the bending machine main body, and the end of the maximum bending length of the bending die on the bending die storage table. If it is possible to move to a position that deviates from the part, even if the length of the bending die group is changed variously, both ends of the bending die group can be rounded, and a rounded corner portion is provided at the corner of the opening. It becomes possible to process the bent piece as it has.

前記載置用プッシャー機構が、前記曲げ型保管台上の曲げ型並び位置に沿って、前記走行経路と反対側の位置で複数並べて設けられた押し棒と、この押し棒の並びに回動経路が沿うように前記走行経路の反対側に配置された無端回動部材と、この無端回動部材を前記押し棒側へ進退させる回動部材進退機構と、前記無端回動部材の長さ方向の一部に長さ方向に並んで複数設けられ前記回動部材進退機構による前記無端回動部材の移動により前記押し棒を押す選択押し部材とを備えるものである場合は、曲げ型群を載せて走行する走行体に対して、任意個数の曲げ型の載置を、円滑に行うことができる。   The pusher mechanism for placement described above includes a plurality of push rods arranged side by side at a position opposite to the travel route along a bending die arrangement position on the bending die storage table, and an arrangement path of the push rods. An endless rotation member disposed on the opposite side of the travel path, a rotation member advancing / retreating mechanism for moving the endless rotation member toward and away from the push rod, and a length direction of the endless rotation member. A plurality of side-by-side members arranged in the length direction and a selection push member that pushes the push rod by the movement of the endless turning member by the turning member advancing / retreating mechanism. An arbitrary number of bending dies can be smoothly placed on the traveling body.

この発明の一実施形態を図面と共に説明する。図１，図２に示すように、この曲げ型長さ調整機構付き曲げ機械は、曲げ機械本体１と、曲げ型長さ調整機構２とを備える。
曲げ機械本体１は、一列に並ぶ複数の曲げ型３からなる曲げ型群３Ａと、この曲げ型群３Ａに対して板材Ｗを相対的に昇降させるプレス駆動機構６（図２）とを有し、曲げ型群３Ａにより板材Ｗにこき曲げ加工を行うものである。プレス駆動機構６は、プレスフレーム８にガイド９を介して昇降自在に設置されたラム７と、ラム７を昇降させる駆動機構（図示せず）とを備える。 An embodiment of the present invention will be described with reference to the drawings. As shown in FIGS. 1 and 2, the bending machine with a bending die length adjusting mechanism includes a bending machine main body 1 and a bending die length adjusting mechanism 2.
The bending machine body 1 has a bending die group 3A composed of a plurality of bending dies 3 arranged in a row, and a press drive mechanism 6 (FIG. 2) for moving the plate material W up and down relative to the bending die group 3A. The plate material W is subjected to a bending process by the bending die group 3A. The press drive mechanism 6 includes a ram 7 which is installed on the press frame 8 via a guide 9 so as to be movable up and down, and a drive mechanism (not shown) for raising and lowering the ram 7.

図３に拡大して示すように、曲げ機械本体１は、金型として、曲げ型３の他に、板材Ｗを上下から挟む上型４および下型５を有する。上型４は、ラム７の下端に取付けられた上型ビーム１０に取り付けられている。上型４は、複数個が一列に並べて設けられて上型群４Ａを構成し、上型４の使用個数の選択によって上型長さの調整が可能である。下型５は下型ブロック１１に設置されている。曲げ型群３Ａは、下型５の背面に沿って位置する。上型ビーム１０には、バックアップ部材１２が設けられ、このバックアップ部材１２の下端を係合させる段差部１３が下型ブロック１１に設けられている。   As shown in an enlarged view in FIG. 3, the bending machine body 1 includes an upper die 4 and a lower die 5 that sandwich the plate material W from above and below, in addition to the bending die 3 as a die. The upper die 4 is attached to an upper die beam 10 attached to the lower end of the ram 7. A plurality of upper molds 4 are provided in a line to form an upper mold group 4A, and the upper mold length can be adjusted by selecting the number of upper molds 4 used. The lower mold 5 is installed in the lower mold block 11. The bending die group 3 </ b> A is located along the back surface of the lower die 5. The upper die beam 10 is provided with a backup member 12, and a step 13 for engaging the lower end of the backup member 12 is provided in the lower die block 11.

下型ブロック１１には、折曲げ線方向の曲げひずみを矯正するためのクッションパッド１４が内蔵され、このクッションパッド１４の上に下型５が設置されている。クッションパッド１４は、下型ブロック１１に設けられた流体圧室１５に嵌合し、流体圧室１５内に流路１６から給排される油または空気等の作動流体によって、昇降が可能である。   The lower mold block 11 has a built-in cushion pad 14 for correcting bending strain in the bending line direction, and the lower mold 5 is installed on the cushion pad 14. The cushion pad 14 is fitted into a fluid pressure chamber 15 provided in the lower mold block 11 and can be moved up and down by a working fluid such as oil or air supplied and discharged from the flow path 16 in the fluid pressure chamber 15. .

曲げ機械本体１は、曲げ加工に際して、まず図３のように下型５上に配置された板材Ｗを、ラム７の下降によって図４（Ａ）のように上型４で下型５上に押し付ける。この上型４と下型５とで挟み付け状態になった板材Ｗを、図４（Ｂ）のようにクッションパッド１４に抗してラム７によりさらに下降させることで、板材Ｗが曲げ型群３Ａに対して下降させられ、曲げ型群３Ａと上型４との間で、板材Ｗの上型４よりも突出した縁部が、上方へ折り曲げられて曲げ片Ｗａとなる。すなわち、こき曲げが行われる。   When the bending machine body 1 is bent, first, the plate material W arranged on the lower die 5 as shown in FIG. 3 is moved onto the lower die 5 by the upper die 4 as shown in FIG. Press. The plate material W sandwiched between the upper die 4 and the lower die 5 is further lowered by the ram 7 against the cushion pad 14 as shown in FIG. The edge part which is lowered with respect to 3A and protrudes from the upper mold 4 of the plate material W between the bending mold group 3A and the upper mold 4 is bent upward to form a bent piece Wa. That is, the bending is performed.

図５に示すように、曲げ型３は、複数個が一列に並んで曲げ型群３Ａを構成する。曲げ型群３Ａの両端の曲げ型３は端部専用曲げ型３1 ，３2 とされる。曲げ型群３Ａの長さ変更時は、中間の曲げ型３の配列個数を変更し、両端には常に端部専用曲げ型３1 ，３2 が配置される。曲げ型群３Ａは、全長に渡って同じ断面形状のものとされ、中間の各曲げ型３は、曲げ型群３Ａを長さ方向に垂直な平面で一定幅毎に切断した形状となるが、両端の端部専用曲げ型３1 ，３2 は、先端面における曲げ型群３Ａの並びの端が、曲げ型並び方向の断面において曲線となる曲面部３ａとされる。曲面部３ａは例えば球面状の曲面とされる。 As shown in FIG. 5, a plurality of bending dies 3 are arranged in a line to form a bending dies group 3A. The bending dies 3 at both ends of the bending die group 3A are the end-specific bending dies 3 1 and 3 2 . When the length of the bending die group 3A is changed, the number of intermediate bending dies 3 is changed, and end-specific bending dies 3 1 and 3 2 are always arranged at both ends. The bending die group 3A has the same cross-sectional shape over its entire length, and each of the intermediate bending dies 3 has a shape obtained by cutting the bending die group 3A at a constant width in a plane perpendicular to the length direction. The end-only bending dies 3 1 , 3 2 at both ends are curved surface portions 3 a in which the ends of the bending die group 3 A on the front end surface are curved in the cross section in the bending die arrangement direction. The curved surface portion 3a is, for example, a spherical curved surface.

両端の端部専用曲げ型３1 ，３2 のうち、一端（曲げ機械本体１からの脱出側端）のものは、中間の曲げ型３よりも幅広とされ、また互いに型幅Ｂが異なる複数（ここでは２個）の端部専用曲げ型３21，３22（図８）が交換可能に設けられる。これら複数の端部専用曲げ型３21，３22は、中間の曲げ型３の型幅またはその倍数幅に対して異なる寸法差を持つものとされ、複数種の端部専用曲げ型３21，３22の使い分けによって、曲げ型群３Ａの長さを中間の曲げ型３の個数を選択するよりも細かに変更可能とされる。
また、一端の端部専用曲げ型３2 （３21，３22）は、曲げ型並び方向へ移動させるための被係合部３ｂが設けられている。被係合部３ｂは、これに係合させる係合部２３ｂ（図７）が、端部専用曲げ型３2 の厚み方向（曲げ型並び方向と直交する方向）に係脱自在な形状、例えばかぎ形や溝形とされる。 Among the end-specific bending dies 3 1 and 3 2 at both ends, one end (the end on the escape side from the bending machine main body 1) is wider than the intermediate bending die 3 and has a plurality of different mold widths B. The end-only bending dies 3 21 and 3 22 (FIG. 8) are provided in an exchangeable manner. The plurality of end-only bending tool 3 21, 3 22, is assumed to have different dimensional difference with respect to the mold width or multiples thereof the width of the intermediate bending mold 3, a plurality of types of end-only bending tool 3 21, The length of the bending die group 3A can be changed more finely than by selecting the number of intermediate bending dies 3 by properly using 3 22 .
The end-only bending die 3 2 (3 21 , 3 22 ) at one end is provided with an engaged portion 3b for moving in the bending die arrangement direction. Engaged portion 3b, the engaging portions 23b engage in this (FIG. 7), detachably shape to only bending mold 3 2 in the thickness direction ends (direction perpendicular to the bending tool arranging direction), for example, It is a hook or groove.

図１において、曲げ型長さ調整機構２は、曲げ型群３Ａの曲げ型並び方向の長さを調整する機構である。曲げ型長さ調整機構２は、曲げ型群３Ａが載せられ曲げ機械本体１に対して曲げ型並び方向に出入りする走行体２１と、この走行体２１に設けられて走行体２１上の曲げ型群３Ａの両端を当接させる一対の当接部材２２，２３と、曲げ機械本体１に対して遠い方の当接部材２３を走行体２１に対して曲げ型並び方向に移動させる当接部材移動機構２４とを備える。また、この曲げ型長さ調整機構２は、曲げ機械本体１の外部で走行体２１の走行経路に沿って設けられ曲げ型群３Ａに対する余りの曲げ型３が前記走行経路に沿って並べて載置される曲げ型保管台２５と、走行体２１上の曲げ型３を曲げ型保管台２５上に押し出す降ろし用プッシャー機構２６と、曲げ型保管台２５上の任意個数の曲げ型３を走行体２１上に載せる載置用プッシャー機構２７とを有する。   In FIG. 1, a bending die length adjusting mechanism 2 is a mechanism for adjusting the length of the bending die group 3A in the bending die arrangement direction. The bending mold length adjusting mechanism 2 includes a traveling body 21 on which a bending mold group 3A is placed and which enters and exits the bending machine main body 1 in the bending mold arrangement direction, and a bending mold provided on the traveling body 21 and on the traveling body 21. A pair of abutting members 22 and 23 that abut both ends of the group 3A, and an abutting member movement that moves the abutting member 23 far from the bending machine main body 1 in the bending die arrangement direction with respect to the traveling body 21 And a mechanism 24. The bending mold length adjusting mechanism 2 is provided along the traveling path of the traveling body 21 outside the bending machine main body 1 and the surplus bending mold 3 with respect to the bending mold group 3A is placed side by side along the traveling path. The bending mold storage stand 25, the lowering pusher mechanism 26 that pushes the bending mold 3 on the traveling body 21 onto the bending mold storage base 25, and an arbitrary number of bending molds 3 on the bending mold storage base 25 are disposed on the traveling body 21. And a mounting pusher mechanism 27 to be placed thereon.

走行体２１は、左右方向に延びる長尺部材であり、図３に示すように、固定の基台２８上に、ガイドレール２９および直動転がり軸受３０からなる案内機構３１を介して進退自在に設置されている。ガイドレール２９は、走行体２１が曲げ機械本体１内の位置とその側方に出た位置まで走行可能なように設けられている。走行体２１は、背面にラック３２が設けられていて、図１，図８のように曲げ機械本体１の側部に設けられてラック３２に噛み合うピニオン３３およびこのピニオン３３を、ギヤ３４を介して駆動するサーボモータ３５からなる走行体進退駆動機構３６により進退させられる。走行体２１は、上記のようにサーボモータ３５により進退させられるため、任意の位置で停止可能であり、上面に載せた曲げ型群３Ａを曲げ機械本体１内の任意の左右方向位置に配置した状態で、曲げ機械本体１による板材Ｗの曲げ加工が可能である。サーボモータ３５は、この曲げ機械を制御する数値制御装置の一部の機能として設けられる走行体位置制御装置５９（図８）により制御される。   The traveling body 21 is a long member extending in the left-right direction. As shown in FIG. 3, the traveling body 21 can move forward and backward on a fixed base 28 via a guide mechanism 31 including a guide rail 29 and a linear motion rolling bearing 30. is set up. The guide rail 29 is provided so that the traveling body 21 can travel to a position in the bending machine main body 1 and a position protruding to the side thereof. The traveling body 21 is provided with a rack 32 on the back surface, and as shown in FIGS. 1 and 8, the pinion 33 provided on the side of the bending machine main body 1 and meshing with the rack 32 is connected to the pinion 33 via a gear 34. It is advanced and retracted by a traveling body advancing / retreating drive mechanism 36 comprising a servo motor 35 that is driven in this manner. Since the traveling body 21 is advanced and retracted by the servo motor 35 as described above, the traveling body 21 can be stopped at an arbitrary position, and the bending die group 3A placed on the upper surface is arranged at an arbitrary left and right position in the bending machine body 1. In this state, the bending of the plate material W by the bending machine body 1 is possible. The servo motor 35 is controlled by a traveling body position controller 59 (FIG. 8) provided as a partial function of a numerical controller that controls the bending machine.

図７に示すように、当接部材移動機構２４は、走行体２１上に長さ方向に沿って設けられたロッドレスシリンダ３８と、このロッドレスシリンダ３８で走行体２１の長さ方向に移動させられる進退部材３９とからなる。進退部材３９に、上記一対の当接部材２２，２３のうちの可動側の当接部材２３が固定されている。可動側の当接部材２３は、端部専用曲げ型３2 の被係合部３ｂに係脱自在に係合する係合部２３ｂを有している。 As shown in FIG. 7, the contact member moving mechanism 24 is moved in the length direction of the traveling body 21 by the rodless cylinder 38 provided on the traveling body 21 along the length direction, and the rodless cylinder 38. And advancing / retracting member 39 to be moved. The movable contact member 23 of the pair of contact members 22 and 23 is fixed to the advance / retreat member 39. Contact member 23 of the movable side, has an engaging portion 23b for engaging disengageably with the engaged portion 3b of the end-only bending tool 3 2.

図６に示すように、曲げ型保管台２５は、その曲げ型載置面２５ａが走行体２１の曲げ型載置面２１ａと同じ高さレベルで、かつ互い近接して設けられ、これら曲げ型載置面２１ａ，２５ａ上を滑らせて曲げ型３の乗り移りが可能とされる。曲げ型保管台２５は、上面に突出した規制板２５ｂを有し、この規制板２５ｂに接して、複数の曲げ型３が曲げ型載置面２５ａ上に載せられる。なお、走行体２１は、曲げ型３の背面位置を規制する背面当たり部４０が設けられている。   As shown in FIG. 6, the bending mold storage table 25 is provided with the bending mold mounting surface 25 a at the same height level as the bending mold mounting surface 21 a of the traveling body 21 and close to each other. The bending die 3 can be transferred by sliding on the mounting surfaces 21a and 25a. The bending mold storage base 25 has a regulating plate 25b protruding on the upper surface, and a plurality of bending molds 3 are placed on the bending mold placing surface 25a in contact with the regulating plate 25b. The traveling body 21 is provided with a back contact portion 40 that regulates the back surface position of the bending die 3.

降ろし用プッシャー機構２６は、走行体２１上の曲げ型３を曲げ型保管台２５上に押し出す進退自在な板状のプッシャー２６ａと、このプッシャー２６ａを進退させる複数の油圧シリンダ等のプッシャー進退駆動源２６ｂとでなる。プッシャー２６ａは、曲げ型保管台２５の全長に渡る長さを有し、ガイド部材（図示せず）で固定の基台２８に進退自在に支持されている。   The lowering pusher mechanism 26 is a plate-like pusher 26a that pushes the bending die 3 on the traveling body 21 onto the bending die storage table 25, and a pusher advance / retreat drive source such as a plurality of hydraulic cylinders that advance and retract the pusher 26a. 26b. The pusher 26a has a length over the entire length of the bending mold storage table 25, and is supported by a fixed base 28 by a guide member (not shown) so as to be able to advance and retreat.

載置用プッシャー機構２７は、曲げ型保管台２５上の曲げ型並び位置に沿って、走行体２１の走行経路と反対側の位置で複数並べて設けられた押し棒４１と、この押し棒４１の並びに回動経路が沿うように、前記走行経路の反対側に配置された無端回動部材４２と、この無端回動部材４２を押し棒４１側へ進退させる回動部材進退機構４３とが設けられている。
各押し棒４１は、曲げ型保管台２５の規制板２５ｂに設けられたガイド孔２５ｂｂに進退自在に嵌合し、外周に設けられたコイルばね等のばね部材４４により、曲げ型３に対する後退方向に付勢されている。 The placement pusher mechanism 27 includes a plurality of push rods 41 arranged side by side at a position opposite to the traveling path of the traveling body 21 along the bending die arrangement position on the bending die storage table 25, and the push rod 41. In addition, an endless rotation member 42 disposed on the opposite side of the travel path and a rotation member advancing / retreating mechanism 43 for moving the endless rotation member 42 back and forth toward the push rod 41 are provided so that the rotation path is along. ing.
Each push bar 41 is fitted in a guide hole 25bb provided in the regulation plate 25b of the bending die storage table 25 so as to be freely advanced and retracted, and is moved backward with respect to the bending die 3 by a spring member 44 such as a coil spring provided on the outer periphery. Is being energized.

図８に示すように、無端回動部材４２は、進退台４５の両端に設けられたスプロケット４６，４７に掛装されたチェーンからなる。無端回動部材４２には、複数並ぶ押し棒４１を選択的に押すための選択押し部材４８が、無端回動部材４２となるチェーンの各リンク（図示せず）に取付けられている。選択押し部材４８は、無端回動部材４２の長さ方向の一部の範囲に連続して設けられている。進退台４５には、押し棒４１の並び側に位置する選択押し部材４８の背面が当接する背面支持部材４９が、押し棒４１の並び範囲の全長に渡って設けられている。
回動部材進退機構４３は、無端回動部材４２を設置した進退台４５と、この進退台４５を進退させる複数の油圧シリンダ等の進退駆動源５０とからなる。進退台４５は、固定の基台２８に、ガイド部材（図示せず）を介して進退自在に設置されている。 As shown in FIG. 8, the endless rotating member 42 includes a chain that is hooked on sprockets 46 and 47 provided at both ends of the advance / retreat platform 45. On the endless rotating member 42, a selection pushing member 48 for selectively pushing a plurality of push rods 41 is attached to each link (not shown) of the chain that becomes the endless rotating member 42. The selection pushing member 48 is continuously provided in a partial range in the length direction of the endless rotation member 42. The advancing / retreating platform 45 is provided with a back surface support member 49 that abuts the back surface of the selection push member 48 positioned on the push rod 41 arrangement side over the entire length of the push rod 41 arrangement range.
The rotation member advance / retreat mechanism 43 includes an advance / retreat platform 45 provided with an endless rotation member 42, and an advance / retreat drive source 50 such as a plurality of hydraulic cylinders for moving the advance / retreat platform 45 back and forth. The advancing / retreating platform 45 is installed on the fixed base 28 so as to be capable of advancing / retreating via a guide member (not shown).

図８および図１１に示すように、曲げ型保管台２５の曲げ機械本体側端には、上面に配列された曲げ型３の並びを一端から押す規制用押し機構５１が設けられている。規制用押し機構５１は、油圧シリンダ等からなる。   As shown in FIGS. 8 and 11, a regulating push mechanism 51 that pushes the array of bending dies 3 arranged on the upper surface from one end is provided at the bending machine main body side end of the bending die storage base 25. The restricting push mechanism 51 is composed of a hydraulic cylinder or the like.

図８に示すように、曲げ型保管台２５に対して、曲げ機械本体１と反対側に並んで、端部専用曲げ型交換機構５３が設けられている。端部専用曲げ型交換機構５３は、図１３に示すように、可動側の２つの端部専用曲げ型３21，３22を載置可能な可動保管台５４を、交換機構基台５７上に走行体走行方向Ｘへ進退可能に設置し、端部型プッシャー機構５５と、可動保管台進退機構５６とを設けたものである。可動保管台５４は、上面位置が走行体２１の曲げ型載置面２１ａと同じレベルに設けられている。端部型プッシャー機構５５は、可動保管台５４上の一つの端部専用曲げ型３1 ，３2 を、所定位置で走行体２１の曲げ型載置面２１ａ上に押し出す機構であり、油圧シリンダまたはエアシリンダ等からなる。可動保管台進退機構５６は、可動保管台５４を走行体走行方向Ｘに進退させる機構であり、油圧シリンダまたはエアシリンダ等からなる。 As shown in FIG. 8, an end-only bending die exchanging mechanism 53 is provided on the opposite side of the bending machine main body 1 with respect to the bending die storage base 25. As shown in FIG. 13, the end-only bending mold exchanging mechanism 53 has a movable storage base 54 on which two movable end-end bending molds 3 21 and 3 22 can be placed on an exchanging mechanism base 57. It is installed so as to be able to advance and retreat in the traveling body traveling direction X, and is provided with an end-type pusher mechanism 55 and a movable storage base advancing / retreating mechanism 56. The movable storage base 54 is provided at the same level as the bending type mounting surface 21 a of the traveling body 21 in the upper surface position. The end-type pusher mechanism 55 is a mechanism that pushes one end-only bending mold 3 1 , 3 2 on the movable storage base 54 onto the bending mold placing surface 21 a of the traveling body 21 at a predetermined position. Or it consists of an air cylinder or the like. The movable storage stand advancing / retreating mechanism 56 is a mechanism for moving the movable storage stand 54 back and forth in the traveling body traveling direction X, and includes a hydraulic cylinder or an air cylinder.

上記構成による曲げ型長さ調整動作を説明する。図１のように曲げ機械本体１内に走行体２１がある状態で、その上の曲げ型群３Ａの長さを変更する場合、まず走行体２１を曲げ機械本体１外へ、図８に示すように曲げ型保管台２５に並ぶ位置まで走行させる。
このとき、曲げ型群３Ａの中間の曲げ型３のうちの最先のもの、つまり端部専用曲げ型３2 に隣合う曲げ型３の位置が、曲げ型保管台２５上に並ぶ最も曲げ機械本体１側の曲げ型３の位置よりも、所定の隙間ｄ（例えば数mm）だけ開く位置で走行体２１を停止させる。この停止位置は、走行体位置制御手段５９によって制御するが、走行体２１の停止位置を常に一定とすることで、常に上記所定の隙間ｄが開く位置に停止することになる。すなわち、曲げ型群３Ａの長さが変更されても、曲げ型３が走行体２１上に載せられて曲げ型群３Ａを構成するか、曲げ型保管台２５上で並ぶかだけの違いだけであるため、上記隙間ｄは一定となる。 The bending die length adjusting operation with the above configuration will be described. When the traveling body 21 is in the bending machine body 1 as shown in FIG. 1 and the length of the bending mold group 3A is changed, the traveling body 21 is first moved out of the bending machine body 1 as shown in FIG. In this manner, the vehicle is caused to travel to a position aligned with the bending mold storage base 25.
In this case, those of the earliest of the middle bending tools 3 of the bending tool group 3A, that is the position of the bending tools 3 adjacent dedicated bending tool 3 2 ends, most bending machines arranged on the bending tool storage mount 25 The traveling body 21 is stopped at a position opened by a predetermined gap d (for example, several mm) from the position of the bending die 3 on the main body 1 side. This stop position is controlled by the traveling body position control means 59. By always keeping the traveling position of the traveling body 21 constant, the traveling position is always stopped at a position where the predetermined gap d is opened. That is, even if the length of the bending die group 3A is changed, only the difference between whether the bending die 3 is placed on the traveling body 21 to form the bending die group 3A or is arranged on the bending die storage table 25. Therefore, the gap d is constant.

この走行体２１の停止の後、図９のように、当接部材移動機構２４のロッドレスシリンダ３８が進退部材３９と共に可動側の当接部材２３を、端部専用曲げ型３2 が曲げ型保管台２５から外れる位置まで移動させる。この進退部材３９の停止位置は、端部専用曲げ型３2 が端部専用曲げ型交換機構５３の可動保管台５４と並ぶ位置であって、かつ降ろし用プッシャー機構２６のプッシャー２６ａの端部付近に並ぶ位置となる。 After stopping the traveling member 21, as shown in FIG. 9, the contact member the contact member 23 of the movable rod-less cylinder 38 together with the reciprocating members 39 of the moving mechanism 24, only bending tool 3 2 bending die end It is moved to a position where it is removed from the storage table 25. Stop position of the reciprocating member 39, near the end of the pusher 26a of a position end only bending tool 3 2 are arranged a movable storage mount 54 of the end-only bending tool changing mechanism 53, and down for pusher mechanism 26 It becomes the position to line up.

この後、降ろし用プッシャー機構２６のプッシャー２６ａが前進して、走行体２１上の端部専用曲げ型３1 ，３2 を除く全ての曲げ型３を、曲げ型保管台２５上に載せる（図１０）。このとき、上記隙間ｄがあるため、走行体２１から降ろす曲げ型３と、曲げ型保管台２５上の曲げ型３とが干渉することが回避される。なお、プッシャー２６ａの曲げ機械本体１側の端部は、当接部材２２に干渉しない長さ方向位置とされている。
このように、走行体２１上の曲げ型３を曲げ型保管台２５上に載せ替えた状態で、上記隙間ｄが生じたままとなっているが、図１１のように、シリンダ装置からなる規制用押し機構５１が、曲げ型保管台２５上の曲げ型３の並びを一端から押すことで、上記隙間ｄがなくなる。 Thereafter, the pusher 26a of the lowering pusher mechanism 26 moves forward, and all the bending dies 3 except the end-specific bending dies 3 1 and 3 2 on the traveling body 21 are placed on the bending die storage table 25 (see FIG. 10). At this time, since there is the gap d, interference between the bending die 3 to be lowered from the traveling body 21 and the bending die 3 on the bending die storage base 25 is avoided. Note that the end of the pusher 26 a on the bending machine main body 1 side is a longitudinal position that does not interfere with the contact member 22.
As described above, the gap d remains generated in a state in which the bending die 3 on the traveling body 21 is replaced on the bending die storage base 25. However, as shown in FIG. When the working push mechanism 51 pushes the arrangement of the bending dies 3 on the bending die storage base 25 from one end, the gap d is eliminated.

上記一連の動作をする間に、載置用プッシャー機構２７は、次の曲げ型群３Ａの長さに必要な曲げ型３の並び幅に、走行体走行経路に沿う選択押し部材４８の長さが対応するように無端回動部材４２を回動させておく。
この状態で、図１２のように、進退台４５と共に無端回動部材４２を走行体２１側へ進退駆動源５０により移動させることで、複数並んだ押し棒４１のうち、選択押し部材４８に対応する位置のものが選択押し部材４８で押され、曲げ型保管台２５上の必要な配列個数分の曲げ型３を走行体２１上に載せる。
この後、当接部材移動機構２４のロッドレスシリンダ３８が進退部材３９と共に可動側の当接部材２３を、曲げ機械本体１側へ移動させ、可動側の端部専用曲げ型３2 を、走行体２１上に載せられている曲げ型３の並びに押しつける。これにより、各曲げ型３は、両側の当接部材２２，２３で挟まれて、走行体２１上に固定される。この状態が、図１２に示す状態である。
このように曲げ型群３Ａの長さの変更が完了した後、走行体２１を曲げ機械本体１内へ走行させ、曲げ加工に使用する。 During the series of operations described above, the mounting pusher mechanism 27 sets the length of the selective pushing member 48 along the traveling body traveling path to the arrangement width of the bending mold 3 necessary for the length of the next bending mold group 3A. The endless rotation member 42 is rotated so as to correspond.
In this state, as shown in FIG. 12, the endless rotating member 42 is moved together with the advance / retreat base 45 to the traveling body 21 side by the advance / retreat drive source 50, thereby corresponding to the selection push member 48 among the plurality of push rods 41 arranged in a row. The one at the position to be pressed is pushed by the selective pushing member 48, and the bending dies 3 corresponding to the required number of arrangements on the bending dies storage table 25 are placed on the traveling body 21.
Thereafter, the rodless cylinder 38 of the abutting member moving mechanism 24 moves the abutting member 23 on the movable side together with the advance / retreat member 39 to the bending machine main body 1 side, and runs the bending die 3 2 on the movable end. The bending molds 3 placed on the body 21 are pressed. Thus, each bending die 3 is sandwiched between the contact members 22 and 23 on both sides and fixed on the traveling body 21. This state is the state shown in FIG.
Thus, after the change of the length of the bending die group 3A is completed, the traveling body 21 is caused to travel into the bending machine body 1 and used for bending.

図１３は、可動側の２つの端部専用曲げ型３21，３22を交換する動作を示す。同図（Ａ）は、図８，図９と共に前述したように、走行体２１を曲げ機械本体１から出し、かつ可動側の当接部材２３と共に、端部専用曲げ型３2 を移動させた状態を示す。この後、図１０のように、降ろし用プッシャー機構２６のプッシャー２６ａが前進して曲げ型３を曲げ型保管台２５上に載せたときに、走行体２１上にあった端部専用曲げ型３21は、プッシャー２６ａによって可動保管台５４上に載せられる（図１３（Ｂ））。 FIG. 13 shows the operation of exchanging the two end-specific bending dies 3 21 and 3 22 on the movable side. Fig (A) is 8, as described above in conjunction with FIG. 9, out of the machine body 1 to bend the traveling member 21, and together with the contact member 23 of the movable, it is moved only the bending tool 3 second end Indicates the state. Thereafter, as shown in FIG. 10, when the pusher 26 a of the lowering pusher mechanism 26 moves forward and the bending die 3 is placed on the bending die storage base 25, the end-specific bending die 3 on the traveling body 21. 21 is placed on the movable storage table 54 by the pusher 26a (FIG. 13B).

プッシャー２６ａが戻った後（図１３（Ｃ））、２つの端部専用曲げ型３21，３22を交換するときは、次に載せる端部専用曲げ型３22を端部型プッシャー機構５５が対応する位置に来るように、可動保管台５４を可動保管台進退機構５６によって移動させる（図１３（Ｄ））。
この後、可動保管台５４上の端部専用曲げ型３22を端部型プッシャー機構５５によって走行体２１上に移動させる（図１３（Ｅ））。 After the pusher 26a is returned (FIG. 13C), when the two end-specific bending dies 3 21 and 3 22 are replaced, the end-type pusher mechanism 55 is used to replace the end-specific bending dies 3 22 to be placed next. The movable storage stand 54 is moved by the movable storage stand advance / retreat mechanism 56 so as to come to the corresponding position (FIG. 13D).
Thereafter, moving on to the traveling member 21 to the end-only bending tool 3 22 on the movable storage mount 54 by the end-type pusher mechanism 55 (FIG. 13 (E)).

なお、端部専用曲げ型３21，３22と可動側の当接部材２３とは、その被係合部３ｂと係合部２３ｂとが、走行体走行方向と直交する方向に係脱自在であるため、プッシャー２６ａや端部型プッシャー機構５５による端部専用曲げ型３21，３22の押し動作によって係脱が行われる。 The end-only bending dies 3 21 and 3 22 and the movable contact member 23 can be engaged and disengaged in a direction perpendicular to the traveling direction of the traveling body of the engaged portion 3b and the engaging portion 23b. Therefore, engagement / disengagement is performed by pushing the end-specific bending dies 3 21 , 3 22 by the pusher 26 a and the end-type pusher mechanism 55.

図１３（Ｅ）のように交換した端部専用曲げ型３22は、図１２のように当接部材２３を載せ替え済みの曲げ型群３Ａの端へ移動させるときに、この交換後の端部専用曲げ型３22を移動させることで、曲げ型群３Ａの可動側の端部専用曲げ型３2 が、型幅の異なるものに交換される。 Figure 13 ends only bending tool 3 22 replacing as (E) is operated to move to the end of the bending tool group 3A already reloading the abutting member 23 as shown in FIG. 12, an end after this exchange By moving the part-specific bending die 3 22 , the end-side bending die 3 2 on the movable side of the bending die group 3 </ b > A is replaced with one having a different die width.

端部専用曲げ型３21，３22を交換しない場合は、図１３（Ｄ）の可動保管台５４を移動させる動作を省略する。これにより、一旦、可動保管台５４上に載せられた端部専用曲げ型３21（３22）が、そのまま再度、曲げ型群３Ａに用いられる。 When the end-only bending dies 3 21 and 3 22 are not exchanged, the operation of moving the movable storage base 54 in FIG. 13D is omitted. As a result, the end-only bending die 3 21 (3 22 ) once placed on the movable storage base 54 is again used for the bending die group 3A as it is.

この構成の曲げ型長さ調整機構付き曲げ機械によると、このように曲げ型３の長さ調整の形態に自由度を得ることができる。
特に、曲げ型群３Ａは、両端にそれぞれ位置する端部専用曲げ型３1 ，３2 を有し、これら端部専用曲げ型３1 ，３2 は、先端面における曲げ型群の並びの端が、曲げ型並び方向の断面において曲線となる曲面部３ａとされているため、曲げ型群３Ａの長さを種々変更しても、曲げ型群３Ａの両端に丸みを持たせることができて、図１５の開口部９２のコーナ部分に角丸め部分９３ａを有するような曲げ片９３の加工が可能なものとなる。この場合に、当接部材移動機構２４は、曲げ機械本体１に対して遠い方の端部専用曲げ型３2 を、曲げ型保管台２５上における曲げ型３の最大並び長さの端部から外れる位置まで移動可能としたため、端部専用曲げ型３2 を用いながら、中間の曲げ型３を、干渉等の問題を生じることなく円滑に交換することができる。 According to the bending machine with a bending die length adjusting mechanism of this configuration, a degree of freedom can be obtained in the form of adjusting the length of the bending die 3 in this way.
In particular, the bending die group 3A has end-specific bending dies 3 1 and 3 2 positioned at both ends, respectively. These end-specific bending dies 3 1 and 3 2 are arranged at the end of the bending die group on the tip surface. However, since the curved portion 3a is curved in the cross-section in the bending die arrangement direction, both ends of the bending die group 3A can be rounded even if the length of the bending die group 3A is variously changed. The bent piece 93 having a rounded corner 93a at the corner of the opening 92 in FIG. 15 can be processed. In this case, the abutting member moving mechanism 24 moves the end-specific bending die 3 2 far from the bending machine main body 1 from the end of the maximum arrangement length of the bending die 3 on the bending die storage base 25. Since it can be moved to the position where it comes off, the intermediate bending die 3 can be smoothly exchanged without causing problems such as interference while using the end-specific bending die 3 2 .

この発明の一実施形態に係る曲げ型長さ調整機構付き曲げ機械の概略平面図である。1 is a schematic plan view of a bending machine with a bending die length adjusting mechanism according to an embodiment of the present invention. その曲げ機械本体の内部を正面側から示す概略正面図である。It is a schematic front view which shows the inside of the bending machine main body from the front side. 曲げ機械本体の上下の型と曲げ型とを示す拡大破断側面図である。It is an expanded fracture side view which shows the upper and lower type | molds and bending type | mold of a bending machine main body. 曲げ機械本体の曲げ動作の説明図である。It is explanatory drawing of the bending operation | movement of a bending machine main body. 曲げ型群の斜視図である。It is a perspective view of a bending mold group. 曲げ型長さ調整機構の破断側面図である。It is a fracture | rupture side view of a bending die length adjustment mechanism. 曲げ型長さ調整機構における走行体、曲げ型群、および当接部材移動機構の関係を示す正面図である。It is a front view which shows the relationship between the traveling body, bending group, and contact member moving mechanism in a bending type length adjustment mechanism. 曲げ型長さ調整機構における走行体が曲げ機械本体から出た状態を示す平面図である。It is a top view which shows the state in which the traveling body in the bending type length adjustment mechanism protruded from the bending machine main body. 曲げ型長さ調整機構の他の動作状態を示す平面図である。It is a top view which shows the other operation state of a bending die length adjustment mechanism. 曲げ型長さ調整機構のさらに他の動作状態を示す平面図である。It is a top view which shows the further another operation state of a bending mold length adjustment mechanism. 曲げ型長さ調整機構のさらに他の動作状態を示す平面図である。It is a top view which shows the further another operation state of a bending mold length adjustment mechanism. 曲げ型長さ調整機構のさらに他の動作状態を示す平面図である。It is a top view which shows the further another operation state of a bending mold length adjustment mechanism. 端部専用曲げ型交換機構の各動作状態を示す平面図である。It is a top view which shows each operation state of the bending part exchange mechanism only for an edge part. 曲げ加工対象の一例となるドアパネルの斜視図である。It is a perspective view of the door panel used as an example of bending object. 同ドアパネルの曲げ加工完了状態を示す斜視図である。It is a perspective view which shows the bending completion state of the door panel. 従来の装置で加工したドアパネルの斜視図である。It is a perspective view of the door panel processed with the conventional apparatus.

符号の説明Explanation of symbols

１…曲げ機械本体
２…曲げ型長さ調整機構
３…曲げ型
３1 ，３2 ，３21，３22…端部専用曲げ型
３ａ…曲面部
３ｂ…被係合部
３Ａ…曲げ型群
４…上型
５…下型
６…プレス駆動機構
７…ラム
１１…下型ブロック
１０…上型ビーム
１４…クッションパッド
２１…走行体
２２，２３…当接部材
２３ｂ…係合部
２４…当接部材移動機構
２５…曲げ型保管台
２５ｂ…規制板
２６…降ろし用プッシャー機構
２６ａ…プッシャー
２６ｂ…プッシャー進退駆動源
２７…載置用プッシャー機構
２８…基台
３１…案内機構
３２…ラック
３３…ピニオン
３５…サーボモータ
３６…走行体進退駆動機構
３８…ロッドレスシリンダ
３９…進退部材
４１…押し棒
４２…無端回動部材
４３…回動部材進退機構
４５…進退台
４８…選択押し部材
５０…進退駆動源
５１…規制用押し機構
５２…曲げ型保管台
５３…端部専用曲げ型交換機構
Ｗ…板材
Ｗａ…曲げ片 DESCRIPTION OF SYMBOLS 1 ... Bending machine main body 2 ... Bending type | mold length adjustment mechanism 3 ... Bending type | mold 3 1 , 3 2 , 3 21 , 3 22 ... End part bending type 3a ... Curved part 3b ... Engagement part 3A ... Bending type group 4 ... Upper mold 5 ... Lower mold 6 ... Press drive mechanism 7 ... Ram 11 ... Lower mold block 10 ... Upper mold beam 14 ... Cushion pad 21 ... Running bodies 22, 23 ... Abutting member 23b ... engaging portion 24 ... Abutting member Movement mechanism 25 ... Bending mold storage base 25b ... Restriction plate 26 ... Lowering pusher mechanism 26a ... Pusher 26b ... Pusher advance / retreat drive source 27 ... Mounting pusher mechanism 28 ... Base 31 ... Guide mechanism 32 ... Rack 33 ... Pinion 35 ... Servo motor 36 ... traveling body advance / retreat drive mechanism 38 ... rodless cylinder 39 ... advance / retreat member 41 ... push rod 42 ... endless rotation member 43 ... rotation member advance / retreat mechanism 45 ... advance / retreat platform 48 ... selection push member 50 ... advance / retreat drive source 51 ... for regulation And mechanisms 52 ... bending tool storage mount 53 ... end only bending tool changing mechanism W ... plate Wa ... bending piece

Claims (2)

一列に並ぶ複数の曲げ型からなる曲げ型群と、この曲げ型群に対して板材を相対的に昇降させるプレス駆動機構とを有し、前記曲げ型群により前記板材に曲げ加工を行う曲げ機械であって、
前記曲げ型群の曲げ型並び方向の長さを調整する曲げ型長さ調整機構を設け、この曲げ型長さ調整機構は、
前記曲げ型群が載せられ前記プレス駆動機構を備えた曲げ機械本体に対して前記曲げ型並び方向に出入りする走行体と、この走行体に設けられて走行体上の曲げ型群の両端を当接させる一対の当接部材と、いずれか一方または両方の当接部材を走行体に対して曲げ型並び方向に移動させる当接部材移動機構と、前記曲げ機械本体の外部で前記走行体の走行経路に沿って設けられ前記曲げ型群に対する余りの曲げ型が前記走行経路に沿って並べて載置される曲げ型保管台と、前記走行体上の曲げ型を前記曲げ型保管台上に押し出す降ろし用プッシャー機構と、前記曲げ型保管台上の任意個数の曲げ型を前記走行体上に載せる載置用プッシャー機構とを有し、
前記走行体上の前記曲げ型群は、両端にそれぞれ位置する端部専用曲げ型を有し、これら端部専用曲げ型は、先端面における曲げ型群の並びの端が、曲げ型並び方向の断面において曲線となる曲面部とされ、前記当接部材移動機構は、曲げ機械本体に対して遠い方の端部専用曲げ型を、前記曲げ型保管台上における曲げ型の最大並び長さの端部から外れる位置まで移動可能としたことを特徴とする、
曲げ型長さ調整機構付き曲げ機械。 A bending machine having a bending die group composed of a plurality of bending dies arranged in a row and a press drive mechanism for moving the plate material relative to the bending die group, and bending the plate material by the bending die group Because
A bending die length adjustment mechanism for adjusting the length of the bending die group in the bending die arrangement direction is provided.
A traveling body that is placed in the bending mold arrangement direction with respect to a bending machine main body on which the bending mold group is placed and that has the press drive mechanism, and both ends of the bending mold group provided on the traveling body abut on the traveling body. A pair of contact members to be in contact with each other, a contact member moving mechanism for moving one or both of the contact members with respect to the traveling body in a bending mold arrangement direction, and travel of the traveling body outside the bending machine main body. A bending mold storage stand provided along the path and a surplus bending mold for the bending mold group is placed side by side along the traveling path; and a bending mold on the traveling body is pushed down onto the bending mold storage base. A pusher mechanism for mounting, and a placing pusher mechanism for placing an arbitrary number of bending dies on the bending die storage table on the traveling body ,
The bending die group on the traveling body has end-only bending dies located at both ends, and these end-only bending dies are arranged such that the end of the bending die group on the tip surface is in the bending die arrangement direction. The abutting member moving mechanism has an end-only bending die far from the bending machine main body, and the end of the maximum bending length of the bending die on the bending die storage table. It characterized that you have movable to a position out of the parts,
Bending machine with bending length adjustment mechanism. 一列に並ぶ複数の曲げ型からなる曲げ型群と、この曲げ型群に対して板材を相対的に昇降させるプレス駆動機構とを有し、前記曲げ型群により前記板材に曲げ加工を行う曲げ機械であって、
前記曲げ型群の曲げ型並び方向の長さを調整する曲げ型長さ調整機構を設け、この曲げ型長さ調整機構は、
前記曲げ型群が載せられ前記プレス駆動機構を備えた曲げ機械本体に対して前記曲げ型並び方向に出入りする走行体と、この走行体に設けられて走行体上の曲げ型群の両端を当接させる一対の当接部材と、いずれか一方または両方の当接部材を走行体に対して曲げ型並び方向に移動させる当接部材移動機構と、前記曲げ機械本体の外部で前記走行体の走行経路に沿って設けられ前記曲げ型群に対する余りの曲げ型が前記走行経路に沿って並べて載置される曲げ型保管台と、前記走行体上の曲げ型を前記曲げ型保管台上に押し出す降ろし用プッシャー機構と、前記曲げ型保管台上の任意個数の曲げ型を前記走行体上に載せる載置用プッシャー機構とを有し、
前記載置用プッシャー機構が、前記曲げ型保管台上の曲げ型並び位置に沿って、前記走行経路と反対側の位置で複数並べて設けられた押し棒と、この押し棒の並びに回動経路が沿うように前記走行経路の反対側に配置された無端回動部材と、この無端回動部材を前記押し棒側へ進退させる回動部材進退機構と、前記無端回動部材の長さ方向の一部に長さ方向に並んで複数設けられ前記回動部材進退機構による前記無端回動部材の移動により前記押し棒を押す選択押し部材とを備えることを特徴とする、
曲げ型長さ調整機構付き曲げ機械。 A bending machine having a bending die group composed of a plurality of bending dies arranged in a row and a press drive mechanism for moving the plate material relative to the bending die group, and bending the plate material by the bending die group Because
A bending die length adjustment mechanism for adjusting the length of the bending die group in the bending die arrangement direction is provided.
A traveling body that is placed in the bending mold arrangement direction with respect to a bending machine main body on which the bending mold group is placed and that has the press drive mechanism, and both ends of the bending mold group provided on the traveling body abut on the traveling body. A pair of contact members to be in contact with each other, a contact member moving mechanism for moving one or both of the contact members with respect to the traveling body in a bending mold arrangement direction, and travel of the traveling body outside the bending machine main body. A bending mold storage stand provided along the path and a surplus bending mold for the bending mold group is placed side by side along the traveling path; and a bending mold on the traveling body is pushed down onto the bending mold storage base. A pusher mechanism for mounting, and a placing pusher mechanism for placing an arbitrary number of bending dies on the bending die storage table on the traveling body,
The pusher mechanism for placement described above includes a plurality of push rods arranged side by side at a position opposite to the travel route along a bending die arrangement position on the bending die storage table, and an arrangement path of the push rods. An endless rotation member disposed on the opposite side of the travel path, a rotation member advancing / retreating mechanism for moving the endless rotation member toward and away from the push rod, and a length direction of the endless rotation member. characterized Rukoto a selection pushing member to push said push rod by movement of the endless pivoting member according alongside more provided the rotary member advancing and retracting mechanism lengthwise section,
Bending tool length adjusting mechanism with the bending machine.
JP2006298783A 2006-11-02 2006-11-02 Bending machine with bending length adjustment mechanism Expired - Fee Related JP4899802B2 (en)

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DE200760001569 DE602007001569D1 (en) 2006-11-02 2007-10-02 Bending machine with mechanism for adjusting the length of the bending tool
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