JPS59144542A - Method for controlling operation of forming tool in wire rod bending machine - Google Patents

Abstract

PURPOSE:To automate bending of a wire rod and to bend exactly the wire rod by controlling the revolutions of motors with a numerically controllable computer. CONSTITUTION:The revolutions of motors 7 are controlled by a control device 9, such as a numerically controllable computer. The motors 7 are run by preset angles at the suitable timing and suitable speed according to the shape of a wire rod 2 to be formed, by which the movement of a forming tool 3 to and from the front of a delivery port 1 is adequately controlled. The movement of the tool 3 to and from the front of the port 1 for the rod 2 is made easily and exactly controllable by the simple construction and the disposition of the tool 3 is made freely selectable.

Description

【発明の詳細な説明】 本発明は線材折曲成形機における成形工具作動制御法に
係り、コイルスプリング製造機の迦き線材折曲成形機に
おいて、線材の送り出し口を中心に放射状に配し、且つ
該送り出し口前力へ出没する成形工具の作動を、簡単な
構造で容易に、そして正確に行ない得るよう罠制御する
線材折曲成形機における成形工具作動制御法に関するも
のである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for controlling the operation of a forming tool in a wire bending and forming machine, and includes a method for controlling the operation of a forming tool in a wire bending and forming machine of a coil spring manufacturing machine. The present invention also relates to a method for controlling the operation of a forming tool in a wire bending and forming machine, in which the operation of the forming tool that moves in and out of the front force of the feed port is controlled so as to be easily and accurately performed with a simple structure.

従来、線材折曲成形機における成形工具の作動は、線材
の送り出し口を中心に放射状に配され、線材の切曲形状
に応じて所定順に送り出し口前力へ移動するものである
から、その作動機構はいろいろと実施されていた。例え
ば、　ＦＩＩＡに示すように、傘歯車１００組合せによ
って複数の軸１１を回転させ、該軸１１に取付けたカム
１２０回転によって各成形工具３を線材２の折曲形状に
応じ適宜出没させる構造や、第２図に示すように、回転
する大歯車１３の周囲に適数個の小歯車１４を噛合させ
て配し、該小歯車１４０回転に伴ない回転するカム１２
によって各成形工具３を適宜出没させる構造や、第６図
に示すように、各成形工具３を全圧、或いは油圧のシリ
ンダー１５の作動によって適宜出没させる′ｊｖｉ造の
作動機構等が挙けられる。Conventionally, the operation of the forming tools in a wire bending and forming machine is such that they are arranged radially around the wire feeding port and move toward the feeding port front force in a predetermined order according to the bending shape of the wire rod. Various mechanisms were implemented. For example, as shown in FIIA, a structure in which a plurality of shafts 11 are rotated by a combination of 100 bevel gears, and each forming tool 3 is moved in and out as appropriate according to the bending shape of the wire rod 2 by rotating a cam 120 attached to the shaft 11; As shown in FIG. 2, a suitable number of small gears 14 are arranged around a rotating large gear 13 in mesh with each other, and a cam 12 rotates as the small gear 140 rotates.
As shown in FIG. 6, examples include a structure in which each forming tool 3 is moved in and out as appropriate, and an operating mechanism in which each forming tool 3 is moved in and out as appropriate by full pressure or the operation of a hydraulic cylinder 15. .

しかし、第１図、及び第２図に示す作動機構は、そのカ
ム１２の形状が第４図に示す形状となってしまう。すな
わち、複数個の成形工具３が放射状に配されると共に、
線材２の送り出し口１の前方に成形工具３を１つずつ出
没させなくてはならないので、カム１２の形状は、成形
工具３に線材な当接させている開成形工具３を前記線材
２の送シ出し口１前方に突出させるべく作動させ、他の
成形工具３は引込ませた状態を保ち、最初に線材２に当
接させた成形工具３が引込んだ時点で他の成形工具３を
順次突出させるべ（作動する形状に成形されているから
、３６０°を成形工具３の配置数によって分割した作動
角１６の部分にのみ作動突起１７を設け、その他の位置
においては休止角１８として前記突起１７より曲率半径
の小さい円弧にて形成した形状となっている。従って、
カム１２の形状は複雑となり、カム１２の成形には多く
の加工時間を費してしまうという欠点があった。However, in the operating mechanism shown in FIGS. 1 and 2, the shape of the cam 12 is as shown in FIG. 4. That is, while a plurality of forming tools 3 are arranged radially,
Since it is necessary to move the forming tool 3 one by one in front of the feeding port 1 of the wire rod 2, the shape of the cam 12 is such that the opening forming tool 3, which is brought into contact with the forming tool 3, can be moved in front of the wire rod 2. The feed outlet 1 is operated to protrude forward, and the other forming tools 3 are kept in a retracted state, and when the forming tool 3 that was brought into contact with the wire rod 2 first is retracted, the other forming tools 3 are (Since it is molded into an operating shape, the operating protrusion 17 is provided only at the operating angle 16, which is obtained by dividing 360° by the number of disposed forming tools 3. At other positions, the operating protrusion 17 is provided as the rest angle 18. The shape is formed by an arc with a smaller radius of curvature than the protrusion 17. Therefore,
The shape of the cam 12 is complicated, and the molding of the cam 12 requires a lot of processing time.

又、第６図に示す作動機構は、空圧或いは油圧のシリン
ダー１５の作動によって適宜出没すべく作動させるから
、各成形工具３が順次出没させるために、各シリンダー
１５の作動を適宜同調させて連続作動させることや、同
時に複数の成形工具３を協調作動させることが困難であ
り、更には一障害物や圧力及び線材の材質の違いによる
前進。Further, since the operating mechanism shown in FIG. 6 is operated to move in and out as appropriate by the operation of pneumatic or hydraulic cylinders 15, the operations of the cylinders 15 are appropriately synchronized in order for each forming tool 3 to move in and out in sequence. It is difficult to operate continuously or coordinately operate a plurality of forming tools 3 at the same time, and furthermore, it is difficult to move forward due to obstacles, pressure, and differences in wire material.

後退位置の制御を正確に行なうことができないという欠
点があった。There is a drawback that the retreat position cannot be accurately controlled.

そこで本発明は、上述した欠点等に鑑み創出され、成形
工具の配置を自由に選択でき、しかも確実な成形工具の
作動を得られるようにしたものであり、その要旨とする
処は、中心に線材の送り出し口を設け、線材を折曲成形
する複数個の成形工具を、前記送り出し口を中心として
放射方向に配し、Ｍ材の成形形状に応じて成形工具を前
記送り出し口前力へ適宜出没させて線材を成形する線材
折曲成形機において、成形工具なカムの回転によって出
没させ、該カムの回転を直流モーター、或いはパルスモ
ータ−の如き回転制御可能なモーターにて駆動し、該モ
ーターの回転を数値制御可能なコンピューターの如き制
御装置によって適宜制御することに存するものである。Therefore, the present invention was created in view of the above-mentioned drawbacks, etc., and it is possible to freely select the arrangement of the forming tool and to obtain reliable operation of the forming tool. A feeding port for the wire rod is provided, and a plurality of forming tools for bending and forming the wire rod are arranged in a radial direction centering on the feeding port, and the forming tools are appropriately applied to the front force of the feeding port depending on the forming shape of the M material. In a wire bending machine that forms a wire rod by moving it out and out, the forming tool moves in and out by rotating a cam, and the rotation of the cam is driven by a motor whose rotation can be controlled, such as a DC motor or a pulse motor. The invention consists in appropriately controlling the rotation of the rotor by a control device such as a computer capable of numerical control.

以下、図面を参照して本発明の詳細な説明すると次の通
りである。Hereinafter, the present invention will be described in detail with reference to the drawings.

すなわち１図中１は線材２の送り出し口であり。In other words, numeral 1 in FIG. 1 is a feeding port for the wire rod 2.

該送り出し口１を中心として線材２を折曲成形する成形
工具３を放射方向に複数個配し、該成形工具３は各々摺
動部４に固定され放射方向に摺動して送り出し口１前方
まで移動可能に設置されている。A plurality of forming tools 3 for bending and forming the wire rod 2 centering on the feeding port 1 are arranged in a radial direction, and each of the forming tools 3 is fixed to a sliding part 4 and slides in the radial direction to bend and form the wire rod 2 in front of the feeding port 1. It is installed so that it can be moved up to.

そして、前記各摺動部４の一端５を１円盤の回転軸１９
を円盤の中心から偏心させて回転する円形カム６の外周
に当接させ、該円形カム６を回転させることで、摺動部
４を往復摺動させるものである。しかも円形カム６０回
転は、各々直流モーター、或いはパルスモータ−の如き
回転制御可能なモーター７により適宜減速機８を介して
駆動されている。One end 5 of each sliding portion 4 is connected to a rotating shaft 19 of a disc.
is brought into contact with the outer periphery of a circular cam 6 that rotates eccentrically from the center of the disk, and by rotating the circular cam 6, the sliding portion 4 is caused to slide back and forth. Furthermore, the 60 rotations of the circular cams are each driven by a motor 7 whose rotation can be controlled, such as a DC motor or a pulse motor, via a speed reducer 8 as appropriate.

更に、前記モーター７は、ａ値制御可能なコンビニ、−
ターの如き制御装置９によってそれぞれ回転が制御され
、成形される線材２の形状に応じて適宜タイミング、及
び適宜スピードであらかじめ設定した角度だけモーター
７を回転させ、前記送り出し口１前方への成形工具３の
出没作動を適宜制御するものである。Furthermore, the motor 7 is a convenience store capable of controlling the a value.
The rotation of the motor 7 is controlled by a control device 9 such as a motor, and the motor 7 is rotated by a preset angle at an appropriate timing and speed according to the shape of the wire rod 2 to be formed, and the forming tool is moved forward of the feeding port 1. This is to appropriately control the appearance and retraction operation of No. 3.

従って、線材２の送り出し口１前方へ出没する成形工具
３の作動を、簡単な構造で容易に、そして正確に行ない
得るように制御することができ、更には成形工具３の配
置をも自由に選択できる。Therefore, the operation of the forming tool 3 that moves forward and retracted from the feeding port 1 of the wire rod 2 can be easily and accurately controlled with a simple structure, and furthermore, the forming tool 3 can be freely arranged. You can choose.

すなわち、中心に線材２の送り出し口１を設け、線材２
を折曲成形する複数個の成形工具３を、前記送り出し口
１を中心として放射方向に配し２線材２の成形形状に応
じて成形工具３を前記送り出し口１前方へ適宜出没させ
て線材２を成形する線材折曲成形機において一成形工具
３をカムの回転によって出没させ、該カムの回転を直流
モーター或いはパルスモータ−の如き回転制御可能なモ
ーター７にて駆動したことにより、モーター７を適宜制
御する−ことで、カムを適宜タイミング及び適宜スピー
ドで、そして設定した角度だけモーター７によって回転
させることができるから、第４図に示す従来例における
カム形状、すなわち、６６ｏ０を成形工具３の配置数に
よって分割した作動角１６０部分のみ作動突起１７を設
けた形状に成形したカム１２を使用しなくとも１円盤の
回転軸１９を円盤の中心から偏心させて回転する円形カ
ム６によって作動させることができる。その結果、カム
の成形加工が非常に容易になり、更には作動時の接触圧
力角も低（なり作動抵抗が非常に少な（良好な作動状態
を得ることができる。That is, the feeding port 1 for the wire rod 2 is provided in the center, and the wire rod 2 is
A plurality of forming tools 3 for bending and forming the wire rod 2 are arranged in a radial direction centering on the feeding port 1, and the forming tools 3 are moved in and out in front of the feeding port 1 as appropriate depending on the forming shape of the wire rod 2. In a wire bending machine for forming wire rods, one forming tool 3 is moved in and out by the rotation of a cam, and the rotation of the cam is driven by a motor 7 whose rotation can be controlled, such as a DC motor or a pulse motor. By controlling the cam appropriately, the cam can be rotated by the motor 7 at an appropriate timing and speed, and by a set angle. Therefore, the cam shape in the conventional example shown in FIG. To operate with a circular cam 6 that rotates with a rotary shaft 19 of one disk eccentric from the center of the disk without using a cam 12 formed in a shape in which an operating projection 17 is provided only in the operating angle 160 portion divided by the number of locations. I can do it. As a result, the molding process of the cam becomes very easy, and furthermore, the contact pressure angle during operation is low (and the operating resistance is very low (good operating condition can be obtained).

そして、前記したモーターＴの回転を数値制御可能なコ
ンピューターの如き制御装置９によって適宜制御するこ
とにより、線材２の折曲成形加工を目動化し、しかも正
確に行なうことができ、構造も非常に簡単であるから成
形工具３の作動を容易に行なうことができる。By appropriately controlling the rotation of the motor T described above by a controller 9 such as a computer capable of numerical control, the bending process of the wire rod 2 can be carried out visually and accurately, and the structure is also very simple. Since it is simple, the forming tool 3 can be operated easily.

以上説明したように本発明は、コンピューターの如き制
御装置９によって制御させることで、成形工具３を作動
させるカムが加工し易い形状となり、しかも、簡単な構
造で容易に、そして正確に成形工具３０作動を行ない得
るようにし、更には配置位置をも限定されず自由に選択
できる等の優れた効果を奏するものである。As explained above, the present invention allows the cam that operates the forming tool 3 to have a shape that is easy to process by being controlled by the control device 9 such as a computer, and moreover, the forming tool 3 can be easily and accurately controlled with a simple structure. This provides excellent effects such as enabling operation, and furthermore, allowing the arrangement position to be freely selected without being limited.

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

第１図乃至第６因は従来の線材折曲成形機の一例の要部
を示す正面図、第４図は第１図及び第２□□□における
カムの正面図、第５図及び第６図は本発明の実施例を示
すもので、第５図は要部正面図。 第６図は要部側面図である。 １・・・送り出し口　　２・・・線材　　３・・・成形
工具４・・・摺動部　　５°・・−ｔｉ６・・・円形カ
ム　　１・・・モーター　　８・・・減速＠　　９・・
・制御装置１０・・・傘歯車　　１１・・・軸　　１２
・・・カム１３“°°大歯車　　１４・・・小歯車　　
１５・・・シリンダー　　１６・・・作動角　　１７′
・・作動突起１８°゛°休止角　　１９・・・回転軸特
許出願人　株式会社版屋製作所 第１図 １　　３ シ 第５回Figures 1 to 6 are a front view showing the main parts of an example of a conventional wire bending machine, Figure 4 is a front view of the cam in Figures 1 and 2 □□□, and Figures 5 and 6 are The figure shows an embodiment of the present invention, and FIG. 5 is a front view of the main part. FIG. 6 is a side view of the main part. 1... Delivery port 2... Wire rod 3... Forming tool 4... Sliding part 5°...-ti6... Circular cam 1... Motor 8... Deceleration @ 9...
・Control device 10...Bevel gear 11...Shaft 12
...Cam 13"°°large gear 14...small gear
15...Cylinder 16...Working angle 17'
... Operating protrusion 18°゛° Rest angle 19 ... Rotating shaft patent applicant Hanya Seisakusho Co., Ltd. Figure 1 1 3 C 5th

Claims (1)

【特許請求の範囲】 １、　中心延線材の送り出し口を設け、線材を折曲成形
する複数個の成形工具を、前記送り出し口を中心として
放射方向に配し、線材の成形形状に応じて成形工具を前
記送り出しロ前方へ適宜出没させて線材を成形する線材
折曲成形機において。 成形工具をカムの回転によって出没させ、該カムの回転
を直流モーター、或いはパルスモーターノ如き回転制御
可能なモーターにて駆動し、該モーターの回転を数値制
御可能なコンピューターの如き制御装置によって適宜制
御することｔ特徴とした線材折曲成形機忙おける成形工
具作動制御法。[Claims] 1. A central wire rod feeding port is provided, and a plurality of forming tools for bending and forming the wire rod are arranged in a radial direction centering on the feeding port, and the wire rods are shaped according to the forming shape of the wire rod. In a wire bending and forming machine that shapes a wire by appropriately moving a tool forward and retracting from the feeding chamber. The forming tool is moved in and out by the rotation of a cam, the rotation of the cam is driven by a motor that can control the rotation, such as a DC motor or a pulse motor, and the rotation of the motor is appropriately controlled by a control device such as a computer that can numerically control it. A method for controlling the operation of a forming tool during a busy wire bending forming machine.