JP2007125603A

JP2007125603A - Wire bender

Info

Publication number: JP2007125603A
Application number: JP2005322582A
Authority: JP
Inventors: Kenji Tonomura; 健治殿村; Yoshiaki Tanaka; 義昭田中
Original assignee: MARUSHO KIKAI KK; MIE KONDOO KK
Current assignee: MARUSHO KIKAI KK; MIE KONDOO KK
Priority date: 2005-11-07
Filing date: 2005-11-07
Publication date: 2007-05-24

Abstract

<P>PROBLEM TO BE SOLVED: To provide a wire bender capable of efficiently bending a wire while maintaining an adequate shape. <P>SOLUTION: The wire bender A has a wire bending unit 1 and a straightening/feeding unit 2. The wire bending unit 1 has a wire bending means 4 having a core metal 4a for bending a wire W which is provided on a tip of a cantilever projecting and rotatable arm and a cutting unit 4b on an arm base part on one side of a bender body. The straightening/feeding unit 2 has a straightening unit 6 for straightening the bending habit of the wire and a feeding unit 5 for feeding the wire on the other side thereof on a movable base 8. The movable base 8 is freely reciprocally provided on a base 10. In the bender A, the straightening unit 6 and the feeding unit 5 are moved together with the movable base 8 even when the wire W of the predetermined length is advanced/retracted to perform the pre-treatment by a pre-working machine P installed in front of the wire bender A, preventing any wasteful deformation by the straightening unit 6. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

この発明は、線条材を曲げ加工して自動車その他各種機械装置の部品として加工する線条材曲げ加工機に関する。 The present invention relates to a wire rod bending machine for bending a wire rod and processing it as a part of an automobile or other various mechanical devices.

線条材は、コイル状に巻かれた針金等を直線状に延ばし、所定長さごとに切断したものに種々の曲げ加工を施す、あるいは直線状に延ばしたものをその途中に種々の曲げ加工を施した後、所定長さごとに切断して自動車やその他の機械装置の部品、たとえばボンネットステー、マフラハンガー、アクセルペダルのレバー等として利用される。このような線条材の曲げ加工機として本発明者は、特許文献１で所定長さごとに種々の曲げ加工を施し、３次元方向に立体曲げ加工できる曲げ加工装置を提案している。上記特許文献１による線条材曲げ加工装置はあらかじめ所定長さに切断された線条材がその都度手作業で供給されるものであり、基板上に設けた線条材の掴持部材に設けた１対のフィンガに相対的なずれを生じさせて線条材を回転させることができ、掴持部材の両側方には１対の線条材曲げ手段が保持部材に対し接近、離反可能に設置され、フィンガにより線条材を回転させることにより線条材曲げ手段による曲げ加工を立体曲げ加工自在としたものである。 The wire rods are made by extending a wire wound in a coil shape in a straight line, and performing various bending processes on a piece cut at a predetermined length, or various bending processes in the middle of a linear extension. After being applied, it is cut into predetermined lengths and used as parts of automobiles and other mechanical devices, such as bonnet stays, muffler hangers, accelerator pedal levers, and the like. As such a wire rod bending machine, the present inventor has proposed a bending apparatus capable of performing three-dimensional bending in a three-dimensional direction by performing various bending processes for each predetermined length in Patent Document 1. The wire rod bending apparatus according to the above-mentioned Patent Document 1 is a device in which a wire rod cut in advance to a predetermined length is manually supplied each time, and is provided in a wire rod holding member provided on a substrate. Further, the wire rod can be rotated by causing a relative displacement between the pair of fingers, and a pair of wire rod bending means can approach and separate from the holding member on both sides of the gripping member. It is installed, and the bending work by the wire material bending means can be freely made by three-dimensional bending by rotating the wire material with a finger.

これに対し、線条材を直線状に伸ばした状態で種々の立体曲げ加工を施した後、所定長さで切断する形式として、送り手段で曲げ加工装置本体から一方側に回転自在なアームを片持状に突出させ、アーム先端にアームに曲げ加工を施す芯金を回転自在に設け、アーム基部付近に切断装置を設け、曲げ加工装置本体の他方側に線条材の曲げ癖を矯正する矯正部、および線条材の送り部を備えた形式の線条材曲げ加工装置も知られている。この装置では、線条材曲げ加工装置から少し離れてコイル状に巻いて置かれた線条材がガイド手段で案内され矯正部へ送られる。 On the other hand, after performing various three-dimensional bending processes in a state in which the filament material is linearly extended, an arm that can be rotated from the bending apparatus main body to one side by a feeding means is used as a form to be cut at a predetermined length. A cored bar that protrudes in a cantilever shape and bends the arm at the tip of the arm is rotatably provided, a cutting device is provided near the arm base, and the bending wrinkles of the wire rod are corrected on the other side of the bending device body. A wire rod bending apparatus of a type provided with a straightening portion and a wire rod feeding portion is also known. In this apparatus, the wire rod placed in a coil shape a little away from the wire rod bending apparatus is guided by the guide means and sent to the correction section.

このような片持状のアームに曲げ加工を施す芯金を有する形式の線条材曲げ加工装置は、線条材を連続的に送り、立体曲げ加工と切断ができる点で同一形状の部品を大量生産するのに適している。しかし、このような線条材曲げ加工装置で、切断される所定長さの線条材の先端に、例えば線条材の直径より少し大きい大径部をプレス加工装置により加工する必要がある場合、片持ち状の突出アームからさらに所定距離にプレス加工装置のような前工程機が置かれる。 The wire rod bending apparatus of the type having a mandrel that bends such a cantilever arm continuously feeds the wire rod, and allows parts having the same shape in terms of three-dimensional bending and cutting. Suitable for mass production. However, in such a wire material bending apparatus, when a large diameter portion slightly larger than the diameter of the wire material, for example, needs to be processed at the tip of the wire material of a predetermined length to be cut by a press working device A pre-process machine such as a press working apparatus is placed at a predetermined distance from the cantilevered projecting arm.

上記のような前工程機がおかれる場合、立体曲げ加工を施す前に、または後で線条材を突出アームからさらに所要長さ送り出してプレス加工を施す必要がある。このためには送り部により所要長さ線条材を送り出せばよいが、線条材は連続供給されるため矯正部を経て送り部により送られる構成としているから、送り部で線条材を所要長さ送ってプレス加工を施した後、再び所要長さ分逆方向に線条材を引き戻し、曲げ加工と切断が行われる。 In the case where the pre-process machine as described above is set, it is necessary to press the wire material further out from the projecting arm before or after the three-dimensional bending process. For this purpose, it is only necessary to feed the wire rod of the required length by the feed unit, but since the wire rod is continuously supplied, it is sent by the feed unit through the straightening unit. After the length is sent and pressed, the wire is pulled back in the opposite direction again by the required length, and bending and cutting are performed.

上記線条材の送りと引き戻しが行われると、当然送り部の上流側に置かれた矯正部に対しても送りと引き戻しが行われることとなるが、矯正部を線条材が往復動すると、引き戻した際に無用の変形が加えられ、曲げ加工と切断が行われた所定長さの加工済み部品が正常な形に形成されなくなるという問題が生じる。これは、従来の片持ち状の突出アーム形式の線条材曲げ加工装置では、送り部と矯正部が曲げ加工装置本体に対して固定して設けられており、従って矯正部を２度通過するためである。
特開２００３−３１１３３５号公報 When the above-mentioned wire rod is fed and pulled back, naturally, feeding and pulling will be performed even with respect to the correction unit placed on the upstream side of the feed portion, but when the wire rod reciprocates through the correction portion When pulled back, useless deformation is applied, and there is a problem that a processed part having a predetermined length that has been bent and cut cannot be formed into a normal shape. This is because in a conventional cantilever protruding arm type wire bending apparatus, the feed section and the correction section are fixed to the bending apparatus main body, and thus pass through the correction section twice. Because.
JP 2003-31335 A

この発明は、上記の問題に留意して、その前方に前加工機を設置した場合に、前加工のために送り部と矯正部とを通過する線条材に無用の変形が加えられないようにして線条材を連続して送り、線条材の曲げ加工を効率よく、かつ適正な形状を保持して曲げ加工を行えるようにした線条材曲げ加工機を提供することを課題とする。 In the present invention, in consideration of the above-mentioned problems, when a pre-processing machine is installed in front of it, unnecessary deformation is not applied to the wire rod that passes through the feeding section and the correction section for the pre-processing. It is an object of the present invention to provide a wire rod bending machine that continuously feeds the wire rod and efficiently performs the bending of the wire rod while maintaining an appropriate shape. .

この発明は、上記の課題を解決する手段として、片持ち状に突出し、かつ回転自在に設けられた突出アームの先端に線条材を加工する芯金、及びアーム基部に切断部を有する線条材加工手段を加工機本体の一側に有する線条材曲げ加工部と、他側に線条材の曲げ癖を矯正する矯正部、線条材を送る送り部を移動基盤上に有する矯正・送り部とを備え、上記矯正・送り部と移動基盤を基台上で往復動自在に設け、線条材の先端の前加工時に線条材と移動基盤、矯正・送り部とを共に進退動させ得るように構成した線条材曲げ加工機としたのである。 As a means for solving the above-described problems, the present invention provides a core bar that processes a wire rod at the tip of a projecting arm that protrudes in a cantilevered manner and is rotatable, and a wire having a cutting portion at an arm base. Straightening / bending part with wire processing part on one side of processing machine body, straightening part to correct bending wrinkles of wire material on the other side, and feeding part to send the wire material on the moving base The above-mentioned straightening / feeding section and moving base are reciprocally movable on the base, and the wire rod, moving base and straightening / feeding section are both moved forward and backward during pre-processing of the end of the wire rod. The wire rod bending machine is configured to be able to be made.

上記の構成としたこの発明の線条材曲げ加工機によれば、線条材加工手段の突出アームより前方の前加工機による前加工の際に、線条材に対して矯正・送り部による無用な変形が生じるのを無くすことができる。線条材曲げ加工機へはコイル状に巻かれた供給部から線条材が送り部で引き込まれることによって連続して送られるが、線条材の先端は突出アームの端で送りを停止した状態を初期状態として設定され、かつ矯正・送り部は供給部側に寄った位置に初期設定されて停止している。 According to the wire rod bending machine of the present invention configured as described above, the wire rod is corrected and fed to the wire rod during the pre-processing by the pre-processing machine in front of the protruding arm of the wire material processing means. Unnecessary deformation can be eliminated. To the wire rod bending machine, the wire rod is continuously fed from the supply unit wound in a coil shape by the feed portion, but the tip of the wire rod is stopped at the end of the protruding arm. The state is set as an initial state, and the correction / feed unit is initially set at a position close to the supply unit and is stopped.

この状態から前加工するために線条材を加工機本体一側の突出アームより所要長さに相当する距離分送るため移動基盤とその上に置かれた矯正・送り部とを移動させて突出アームから線条材を突出させ、線条材の先端が前加工機内に挿入されるまでおくる。前加工が終わると、再び移動基盤と矯正・送り部とを後退させて初期位置に戻す。この間に矯正・送り部は線条材を掴んだまま保持している。このため、線条材が矯正部への逆送りによる無用の変形を受けることなく移動し、初期位置に戻った後必要な曲げ加工が行われる。この曲げ加工は従来と同様な芯金による曲げ作用である。所要の曲げ作用が終わると、所定長さで切断が行われて加工済み部品が出来上がる。 In order to pre-process from this state, the wire rod is moved by a distance corresponding to the required length from the protruding arm on one side of the processing machine body, and the moving base and the correction / feeding portion placed thereon are moved to protrude. The wire rod is protruded from the arm until the tip of the wire rod is inserted into the pre-processing machine. When the pre-processing is finished, the moving base and the correction / feeding unit are moved back to the initial position again. During this time, the straightening / feeding section holds the wire rod while holding it. For this reason, the wire rod is moved without undergoing unnecessary deformation due to the reverse feed to the correction portion, and necessary bending is performed after returning to the initial position. This bending process is a bending action by a cored bar similar to the conventional one. When the required bending action is finished, cutting is performed at a predetermined length, and a processed part is completed.

この発明は、矯正・送り部と移動基盤とを基台上で移動自在とし、矯正・送り部を基台へ線条材を送り込む側へ寄せた初期位置に停止した状態で線条材を把持し、そのまま矯正・送り部と移動基盤とを前加工機までの必要距離分移動させて線条材の先端を前加工機で加工の後初期位置に戻すため、線条材が前加工の際に無用な加工を加えられることがなく、正常な形状の部品が連続して確実に得られるという効果が得られる。 In this invention, the straightening / feeding portion and the moving base are movable on the base, and the straightening / holding portion is held at the initial position where the straightening / feeding portion is moved toward the base to be fed to the base. Then, the straightening / feeding section and moving base are moved by the necessary distance to the pre-processing machine, and the tip of the wire is returned to the initial position after being processed by the pre-processing machine. Thus, there is no need to add unnecessary processing, and it is possible to obtain an effect that a component having a normal shape can be obtained continuously and reliably.

以下、この発明の実施形態について図面を参照して説明する。図１は実施形態の線条材曲げ加工機Ａ,前加工機Ｐ、線条材原料を供給する線材供給台Ｃを含む装置全体概略構成図である。図示のように、線条材曲げ加工機Ａは、線条材Ｗの曲げ加工部１と、線条材Ｗの巻き癖を矯正し、送りをする矯正・送り部２とからなる。曲げ加工部１は、曲げ加工機本体３と、この本体から一側に片持ち状に突出する突出アーム４ｃに、線条材Ｗの曲げ加工を施す芯金ヘッド４ａ、及び突出アーム基端に置かれた切断カッタ４ｂを有する線条材加工手段４とを備えている。 Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic configuration diagram of the entire apparatus including a wire rod bending machine A, a pre-processing machine P, and a wire rod supply base C for supplying a wire rod material. As shown in the figure, the wire rod bending machine A includes a bending portion 1 of the wire rod W and a correction / feeding portion 2 that corrects and feeds the curl of the wire rod W. The bending section 1 includes a bending machine main body 3, a core arm 4c for bending the wire rod W on a protruding arm 4c protruding in a cantilevered manner from the main body, and a protruding arm base end. And wire rod processing means 4 having a cutting cutter 4b placed thereon.

曲げ加工機本体３内には、突出アーム４ｃのアーム軸を中心に回転させ、切断カッタ４ｂを作動させて線条材を切断するための駆動機構（図示せず）が内蔵されており、この駆動機構からの動力により突出アーム４ｃを回転させ、切断カッタ４ｂを作動させる。曲げ加工部１の前方には突出アーム４ｃの前端より所定距離位置に線条材Ｗの先端を、例えば線条材Wより大径または小径にプレス加工するためのプレス加工機Ｐが設置されている。 The bending machine body 3 has a built-in drive mechanism (not shown) for rotating the projection arm 4c around the arm axis and operating the cutting cutter 4b to cut the wire rod. The projecting arm 4c is rotated by the power from the drive mechanism to operate the cutting cutter 4b. In front of the bending portion 1, a press machine P for pressing the tip of the wire W at a predetermined distance from the front end of the projecting arm 4c, for example, with a diameter larger or smaller than the wire W is installed. Yes.

矯正・送り部２は基台１０上に置かれた送り部５と、それぞれ線条材Ｗの巻き癖を矯正する矯正ローラ６ｒを有する２組の矯正手段６ａ,６ｂから成る矯正部６を備えている。送り部５は、一対のローラ５ｒ,５ｒを互いに対向させて線条材Ｗを挟みながら回転させる複数対のローラ５ｒ,５ｒにより線条材Ｗを曲げ加工機本体３へ送る。ローラ５ｒ,５ｒのニップ圧は送り部５上方のハンドルにより線条材Ｗの径に応じて適切な圧力となるように設定を調整可能に設けられている。なお、この例では各ローラの軸は水平方向に設けられているが、軸の方向は任意の方向に設けてもよい。送り部５のローラ５ｒ,５ｒは、図３に示すように、送りローラ５ｒの背面に設けられたモータ５ｍの出力軸の回転力を複数の歯車５ｇに分岐して各ローラ５ｒに伝達するようにモータ５ｍに接続されている。なお、図２に示す５ｂは線条材の送り量検出部であり、この検出部は２つのローラで線条材を挟み、そのニップ圧を上方のハンドルで加圧調整し、一方のローラの軸にローラの背面でロータリエンコーダが連結されて形成されている。 The straightening / feeding unit 2 includes a straightening unit 6 including a feeding unit 5 placed on the base 10 and two sets of straightening means 6a and 6b each having a straightening roller 6r for correcting curling of the wire W. ing. The feeding unit 5 feeds the wire W to the bending machine main body 3 by a plurality of pairs of rollers 5r and 5r that are rotated while sandwiching the wire W with the pair of rollers 5r and 5r facing each other. The nip pressure of the rollers 5r, 5r is provided such that the setting can be adjusted by the handle above the feeding portion 5 so as to be an appropriate pressure according to the diameter of the wire W. In this example, the shaft of each roller is provided in the horizontal direction, but the direction of the shaft may be provided in an arbitrary direction. As shown in FIG. 3, the rollers 5r and 5r of the feed section 5 branch the rotational force of the output shaft of the motor 5m provided on the back surface of the feed roller 5r into a plurality of gears 5g and transmit it to each roller 5r. Is connected to the motor 5m. In addition, 5b shown in FIG. 2 is a wire material feed amount detection unit. This detection unit sandwiches the wire material with two rollers, pressurizes and adjusts the nip pressure with the upper handle, A rotary encoder is connected to the shaft at the back of the roller.

矯正部６の矯正手段６ａ,６ｂは、水平方向のローラ６ｒと垂直方向のローラ６ｒをそれぞれ有する。矯正手段６ａは、複数の水平ローラ６ｒが千鳥状に配置され垂直方向の曲げを矯正し、矯正手段６ｂは、同様に垂直方向のローラ６ｒが千鳥上に配置され水平方向の曲げを矯正する。この二組の矯正手段６ａ,６ｂはそれぞれローラ支持板６ｃ,６ｄに取り付けられ、かつ共通支持盤７上に設置されている。さらに、上記矯正部６は、送り部５と共に共通の移動台盤８上に設けられている。 The straightening means 6a and 6b of the straightening section 6 have a horizontal roller 6r and a vertical roller 6r, respectively. The correcting means 6a corrects vertical bending by arranging a plurality of horizontal rollers 6r in a staggered manner, and the correcting means 6b similarly corrects horizontal bending by arranging vertical rollers 6r on the staggered pattern. The two sets of correction means 6a and 6b are attached to roller support plates 6c and 6d, respectively, and are installed on a common support board 7. Further, the correction unit 6 is provided on a common movable table 8 together with the feeding unit 5.

曲げ加工部１は、その下面に複数個所設けられているガイド部材８ａを複数条の案内・支持レール９上に摺動自在に支持してレールの長手方向に移動自在に設けられている。さらに、上記支持レール９は共通の基台１０上に設置されているが、移動台盤８とその上の送り部５、矯正部６とをレールの長手方向に移動させ得る距離が、上述した突出アーム４ｃから加工機Ｐまでの距離と一致する長さとして支持レール９を設定している。共通の基台１０は、図１に示すように、曲げ加工部１と矯正・送り部２とを連結する連結フレームを介して台板Ｂ上に設置されている。なお、１１は線条材Ｗを受け入れるガイド部である。 The bending portion 1 is provided movably in the longitudinal direction of the rail by supporting a plurality of guide members 8a provided on the lower surface thereof on a plurality of guide / support rails 9 slidably. Further, although the support rail 9 is installed on a common base 10, the distance by which the movable base 8 and the feeding section 5 and the correction section 6 on the movable base 8 can be moved in the longitudinal direction of the rail is described above. The support rail 9 is set as a length that matches the distance from the protruding arm 4c to the processing machine P. As shown in FIG. 1, the common base 10 is installed on the base plate B via a connection frame that connects the bending portion 1 and the correction / feed portion 2. In addition, 11 is a guide part which receives the wire rod W.

上記移動台盤８とその上の矯正・送り部２とを移動させる移動力は、図３に示すように、基台１０の側方に設けた制御モータ８ｍの出力軸８ｎから移動台盤に伝達される。出力軸８ｎはねじ軸として形成され、このねじ軸にねじ係合する図示しない雌ねじ部が移動台盤８の裏面に設けられており、出力軸８ｎを回転させるとねじ軸の進みによって移動台盤８が前進または後退する。なお、上記制御モータ８ｍ、モータ５ｍ、あるいは加工機本体３内の駆動部は図示しない制御盤に設けられた制御プログラムからの制御信号により所定のタイミングで制御が行われる。 As shown in FIG. 3, the moving force for moving the moving base 8 and the correction / feeding unit 2 on the moving base 8 is transferred from the output shaft 8n of the control motor 8m provided on the side of the base 10 to the moving base. Communicated. The output shaft 8n is formed as a screw shaft, and a female screw portion (not shown) that engages with the screw shaft is provided on the back surface of the movable base 8. When the output shaft 8n is rotated, the movable base is moved by the advancement of the screw shaft. 8 moves forward or backward. The control motor 8m, the motor 5m, or the drive unit in the processing machine main body 3 is controlled at a predetermined timing by a control signal from a control program provided on a control panel (not shown).

線材供給台Ｃは、図示しない回転軸を中心に回転する回転テーブル１２を備えており、線条材Ｗは回転テーブル１２上にコイル状に巻かれて置かれ、送り部５により送られると回転テーブル１２が回転しながら線条材Ｗが供給される。線条材Ｗは矯正・送り部２の入り口側に設けられたガイド部１１を介して送られるが、線材供給台Ｃからこのガイド部１１までの位置は線条材Ｗが適切に送られるに必要な距離に設定される。 The wire rod supply base C includes a rotary table 12 that rotates around a rotation shaft (not shown). The wire rod W is wound on the rotary table 12 in a coil shape and is rotated when fed by the feeding unit 5. The wire rod W is supplied while the table 12 rotates. The wire rod W is fed through the guide portion 11 provided on the entrance side of the straightening / feeding portion 2, but the wire rod W is appropriately fed from the wire rod supply base C to the guide portion 11. Set to the required distance.

上記の構成としたこの実施形態の線条材曲げ加工機Ａでは、次のように曲げ加工作用が行われる。図１に示すように、この線条材曲げ加工機Ａは、加工機に対してその一側から線条材Ｗが連続的に送られて曲げ加工が行われる形式のものであり、従って予め線条材Ｗは線材供給台Ｃから矯正・送り部２、曲げ加工部１を経て線条材曲げ手段４の突出アーム４ｃまで送られた状態に設定されているものとする。また、この加工機Ａでは線条材曲げ手段４において芯金ヘッド４ａにより曲げ加工をする前に線条材Ｗを前加工機Ｐにより、例えば径を大きく、あるいは小さくするプレス加工を必要とするものとする。この状態で矯正部６、送り部５は図１、図２に示す初期位置に停止している。 In the wire rod bending machine A according to this embodiment configured as described above, the bending action is performed as follows. As shown in FIG. 1, the wire rod bending machine A is of a type in which the wire rod W is continuously sent from one side to the machine to be bent. It is assumed that the wire rod W is set to be fed from the wire rod supply base C to the protruding arm 4c of the wire rod bending means 4 through the straightening / feeding portion 2 and the bending portion 1. Further, in this processing machine A, before the wire rod bending means 4 is bent by the cored bar head 4a, the wire rod W needs to be pressed by the pre-machine P, for example, to increase or decrease the diameter. Shall. In this state, the correction unit 6 and the feeding unit 5 are stopped at the initial positions shown in FIGS.

なお、初期位置に加工機Ａが停止しているときは、移動台盤８をその位置に確実に固定しておくために共通台１０内に設けられているロック用シリンダー１２の突出ロッドが移動台盤８にもうけてある嵌合孔に嵌まる位置まで突出されて位置を固定している。従って、初期位置から前進又は後退する際には、突出ロッドを引き下ろして移動台盤８の移動をフリーの状態にする。そして、図４、図５に示すように、上記矯正・送り部２を移動台盤８と共に移動させて、線条材Ｗの先端を突出アーム４ｃからさらに所定距離突出させ、先端が前加工機Ｐの加口部内に挿入されるようにして加工可能な状態とする。 When the processing machine A is stopped at the initial position, the protruding rod of the locking cylinder 12 provided in the common base 10 moves to securely fix the movable base 8 at that position. It protrudes to the position where it fits in the fitting hole provided on the base 8 and the position is fixed. Therefore, when moving forward or backward from the initial position, the protruding rod is pulled down to make the movement of the movable table 8 free. 4 and 5, the straightening / feeding section 2 is moved together with the movable base 8, and the leading end of the wire W is further protruded from the protruding arm 4c by a predetermined distance, and the leading end is a pre-processing machine. It will be in the state which can be processed so that it may be inserted in the addition part of P.

このとき、矯正・送り部２は線条材Ｗを挟んだまま移動台盤８の送りにより線条材Ｗを所定距離突出させる。前加工機Ｐによる前加工が終わると、再び線条材Ｗを移動台盤８の移動によって初期位置に引き戻す。このときも未だ矯正・送り部２は線条材Ｗを掴んだままであり、これによって線条材Ｗが初期位置に引き戻されることとなる。ただし、実際には線条材Ｗの先端を加工した僅かな長さだけ初期位置より少し後方にずれた位置（図５の一点鎖線で示す位置）で停止することとなる。 At this time, the straightening / feeding unit 2 causes the wire rod W to protrude by a predetermined distance by the feed of the movable table 8 with the wire rod W interposed therebetween. When the pre-processing by the pre-processing machine P is completed, the wire rod W is again pulled back to the initial position by the movement of the movable table 8. At this time, the straightening / feeding portion 2 still holds the wire rod W, and the wire rod W is pulled back to the initial position. However, in actuality, it is stopped at a position (a position indicated by a one-dot chain line in FIG. 5) slightly shifted backward from the initial position by a slight length obtained by processing the tip of the wire rod W.

こうして引き戻された線条材Ｗは突出アーム４ｃの先端の心金ヘッド４ａにより曲げ加工が引き続き行われ種々の形状への加工が行われる。この曲げ加工中には矯正・送り部２の送り部５による送りが行われ、所定長さ内での曲げ加工が種々施される。図６にその加工された部品の加工形状の例を示す。（ａ）図の線条材Ｗ₁は線材長さの途中に複数の曲げ加工を施した例であり、その片端に大径部Ｋを形成している。（ｂ）図の線条材Ｗ₂は平行ハンドル形状に加工した例であり、この場合もその片端に小径部Ｋ’を形成している。（ｃ）図の線条材Ｗ₃は略コ字状に曲げ加工した例であるが、この場合はその両端に大径部Ｋを形成している。上記のような曲げ加工において、端末部のプレス加工のような前加工を行っても線条材に無用の変形部が生じることなく、所定品質の製品が得られる。 The wire rod W pulled back in this way is continuously bent by the mandrel head 4a at the tip of the protruding arm 4c, and processed into various shapes. During this bending process, feeding by the feeding part 5 of the correction / feeding part 2 is performed, and various bending processes within a predetermined length are performed. FIG. 6 shows an example of the processed shape of the processed part. Line material W ₁ of (a) view is a example that a plurality of bending in the middle of the wire length, to form a large-diameter portion K to the one end. (B) The wire rod W _{2 in the} figure is an example processed into a parallel handle shape, and in this case also, a small diameter portion K ′ is formed at one end thereof. (C) The wire rod W _{3 in the} figure is an example of bending into a substantially U shape, but in this case, large diameter portions K are formed at both ends thereof. In the bending process as described above, a product having a predetermined quality can be obtained without causing a useless deformation part in the wire rod even if a pre-process such as a press process of the terminal part is performed.

なお、前加工機としてプレス加工機の例を挙げたが、前加工機としてはこれ以外にも例えば、切削機や研磨機など種々の前加工機を設置することができる。 In addition, although the example of the press machine was mentioned as a pre-processing machine, as a pre-processing machine, various pre-processing machines, such as a cutting machine and a grinding machine, can be installed besides this.

産業上の利用の可能性Industrial applicability

この発明は、線条材曲げ加工機に前加工機を設置し、線材供給部から連続的に線条材を送り前加工の際に線条材に無用の変形を生じさせないものであるから、線条材曲げ加工機やばね製造機などの装置に広く利用できる。 This invention is a pre-processing machine installed in the wire rod bending machine, because it does not cause unnecessary deformation in the wire rod during processing before feeding the wire rod continuously from the wire rod supply section, It can be widely used in devices such as wire rod bending machines and spring manufacturing machines.

実施形態の線条材曲げ加工機、前加工機、矯正・送り部を含む装置の全体概観側面図Overall view side view of apparatus including wire rod bending machine, pre-processing machine, straightening / feeding unit of embodiment 実施形態の線条材曲げ加工機の拡大側面図Enlarged side view of the wire rod bending machine of the embodiment 同上の拡大平面図Expanded plan view 上記線条材曲げ加工機の作用の説明図（側面図）Explanatory drawing (side view) of the action of the above-mentioned wire rod bending machine 上記線条材曲げ加工機の作用の説明図（平面図）Explanatory drawing of the action of the above-mentioned wire rod bending machine (plan view) 曲げ加工された加工済み部品の例を示す説明図Explanatory drawing showing an example of a processed part that has been bent

符号の説明Explanation of symbols

１曲げ加工部
２矯正・送り部
３曲げ加工機本体
４ａ芯金ヘッド
４ｂ切断カッタ
４ｃ突出アーム
５送り部
６矯正部
７共通支持盤
８移動台盤
９案内レール
１０共通台 DESCRIPTION OF SYMBOLS 1 Bending process part 2 Straightening / feeding part 3 Bending machine main body 4a Mandrel head 4b Cutting cutter 4c Protruding arm 5 Feeding part 6 Straightening part 7 Common support board 8 Moving base 9 Guide rail 10 Common base

Claims

片持ち状に突出し、かつ回転自在に設けられた突出アームの先端に線条材を加工する芯金、及びアーム基部に切断部を有する線条材加工手段を加工機本体の一側に有する線条材曲げ加工機と、他側に線条材の曲げ癖を矯正する矯正部、及び線条材を送る送り部を移動基盤上に有する矯正・送り部とを備え、上記矯正・送り部と移動基盤を基台上で往復動自在に設け、線条材の先端の前加工時に線条材と移動基盤、矯正・送り部とを共に進退動させ得るように構成した線条材曲げ加工機。 A wire having a core bar for processing a wire rod at the tip of a protruding arm provided in a cantilevered manner and being rotatable, and a wire rod material processing means having a cutting portion at the arm base on one side of the processing machine body A strip bending machine, a straightening portion for correcting the bending wrinkles of the wire rod on the other side, and a straightening / feeding portion having a feed portion for feeding the wire rod on the moving base, the straightening / feeding portion, A wire rod bending machine configured to reciprocate the moving base on the base so that the wire rod, the moving base and the straightening / feeding part can be moved forward and backward during pre-processing of the tip of the wire rod. .

前記基台の長さを、基台上で移動基盤が移動できる移動長さを含む長さに設定し、この移動長さを線条材加工手段の突出アームから前方所定距離に設置される前加工機までの距離に対応した長さに設定し、突出アームから前加工機まで線条材を矯正・送り部で掴んだまま移動基盤を移動させて前加工機に挿入して加工し、前加工機による前加工を行った後移動基盤を後退させ線条材を曲げ加工のための初期位置に後退させるようにしたことを特徴とする請求項１に記載の線条材曲げ加工機。 The length of the base is set to a length including a moving length that the moving base can move on the base, and the moving length is set at a predetermined distance in front from the protruding arm of the wire rod processing means. Set the length corresponding to the distance to the processing machine, move the moving base while grasping the wire rod from the protruding arm to the pre-processing machine with the feeding / feeding part, insert it into the pre-processing machine, and process the front 2. The wire rod bending machine according to claim 1, wherein after the pre-processing by the processing machine, the moving base is moved backward to retract the wire rod to an initial position for bending.