JP2508011Y2 - Bending machine mold - Google Patents

Bending machine mold

Info

Publication number
JP2508011Y2
JP2508011Y2 JP1990030480U JP3048090U JP2508011Y2 JP 2508011 Y2 JP2508011 Y2 JP 2508011Y2 JP 1990030480 U JP1990030480 U JP 1990030480U JP 3048090 U JP3048090 U JP 3048090U JP 2508011 Y2 JP2508011 Y2 JP 2508011Y2
Authority
JP
Japan
Prior art keywords
punch
work
die
pressing member
groove
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
JP1990030480U
Other languages
Japanese (ja)
Other versions
JPH03120913U (en
Inventor
隆 府川
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Amada Co Ltd
Original Assignee
Amada Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Amada Co Ltd filed Critical Amada Co Ltd
Priority to JP1990030480U priority Critical patent/JP2508011Y2/en
Publication of JPH03120913U publication Critical patent/JPH03120913U/ja
Application granted granted Critical
Publication of JP2508011Y2 publication Critical patent/JP2508011Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Bending Of Plates, Rods, And Pipes (AREA)

Description

【考案の詳細な説明】 [考案の目的] (産業上の利用分野) この考案は曲げ加工機の金型に係り、更に詳細には、
ダイと協働して被加工材をV字形などに折り曲げるパン
チを改良した曲げ加工機の金型に関する。
[Detailed Description of the Invention] [Object of the Invention] (Field of Industrial Application) This invention relates to a mold of a bending machine, and more specifically,
The present invention relates to a metal mold for a bending machine in which a punch for bending a work material into a V shape or the like in cooperation with a die is improved.

(従来の技術) 従来、例えばプレス工程で被加工材を曲げ加工する曲
げ加工機としてのダイと協働して被加工材をV字形など
に折り曲げる、いわゆるプレスブレーキでは、V字形な
どの凸形形状を形成したパンチが備えられている。
(Prior Art) Conventionally, for example, in a so-called press brake, which bends a work material in a V shape or the like in cooperation with a die as a bending machine that bends the work material in a pressing process, a so-called V-shaped convex shape A shaped punch is provided.

更に、被加工材の曲げ角度を測定するために、曲げ角
度検出装置として光学式あるいは渦電流式の距離センサ
を用い、被加工材と距離センサ間の距離変化を、距離・
角度変換関数または変換表を用いて角度変化に直してい
る。
Further, in order to measure the bending angle of the work material, an optical or eddy current type distance sensor is used as a bending angle detection device to measure the distance change between the work material and the distance sensor.
The angle change is corrected by using the angle conversion function or conversion table.

すなわち、第9図乃至第11図に示すごとく、ダイ101
の上面に載置された被加工材Wを、光学式あるいは渦電
流式の距離センサ103にて距離l1を測定し、パンチによ
り曲げ加工が行なわれ、被加工材Wの曲げ角度は、θ
よりθに変化する。この時の距離l2より距離変化l
(=l2−l1)を求め第11図に示す距離・角度変換関数よ
り曲げ角度を求めていた。
That is, as shown in FIG. 9 to FIG.
The workpiece W placed on the upper surface of the workpiece is measured for the distance l 1 by the optical or eddy current distance sensor 103, and is bent by the punch. The bending angle of the workpiece W is θ. 1
Changes to θ 2 . Distance change l from distance l 2 at this time
(= L 2 −l 1 ) was calculated and the bending angle was calculated from the distance / angle conversion function shown in FIG.

(考案が解決しようとする課題) ところで、上述した従来の曲げ加工機における曲げ角
度の検出手段では、被加工材Wが何等かの要因で傾むい
ていると、第11図に示す距離・角度変換関数により正確
な距離より角度変換を行なうことができない。すなわ
ち、第12図に示すごとく、ダイ101のV溝に対して、被
加工材Wの長さが対称でない場合は、パンチがダイ101
から離れた時、図中2点鎖線で示すごとく被加工材Wは
傾いてしまう。このため、被加工材Wと距離センサ103
との間の距離l2はl3のごとく変化してしまい、正確な角
度が求められないという問題があった。
(Problems to be solved by the invention) By the way, in the bending angle detecting means in the conventional bending machine described above, if the workpiece W is tilted due to some factor, the distance and angle shown in FIG. The conversion function cannot perform angle conversion from an accurate distance. That is, as shown in FIG. 12, when the length of the workpiece W is not symmetrical with respect to the V groove of the die 101, the punch is moved to the die 101.
When it is separated from the workpiece W, the workpiece W is inclined as shown by the chain double-dashed line in the figure. Therefore, the workpiece W and the distance sensor 103
There is a problem that the distance l 2 between and changes like l 3 , and an accurate angle cannot be obtained.

この不都合を解消すべく曲げ加工終了後、曲げ角度検
出が終了するまで、人手により被加工材Wを保持するこ
とが考えられるが、作業性の向上が図れないという問題
が発生する。また、加圧時に被加工材Wが安定した状態
に保たれている時、曲げ角度検出を行なうことも考えら
れるが、この状態ではスプリングバックが発生してしな
いので、正確な角度を検出できないという問題があっ
た。
In order to eliminate this inconvenience, it is conceivable to manually hold the workpiece W after the bending process is completed and until the bending angle detection is completed, but the workability cannot be improved. It is also possible to detect the bending angle when the workpiece W is kept in a stable state at the time of pressurization, but in this state, springback does not occur, so that an accurate angle cannot be detected. There was a problem.

この考案の目的は、上記問題点を改善するため、曲げ
加工終了後、被加工材がダイの上にのった状態で距離測
定を行ない、スプリングバックを含んだ正確な角度を得
ることができ、人手を要さず、作業性の向上を図った曲
げ加工機の金型を提供することにある。
The purpose of this invention is to improve the above-mentioned problems, and after the bending process, the distance can be measured with the work piece placed on the die, and an accurate angle including the spring back can be obtained. The purpose of the present invention is to provide a mold for a bending machine that requires no manual labor and improves workability.

[考案の構成] (課題を解決するための手段) 前述のごとき従来の問題に鑑みて、本考案は、パンチ
の下部に形成した溝内に、下端部の断面形状が上記パン
チの下端部の断面形状と同一の形状をなした押え部材を
下方向へ突出可能に付勢して設け、上記パンチとダイに
よってワークの折曲げ加工を行うとき、前記パンチの下
端部と押え部材の下端部とが面一になって上記両下端部
とダイの溝とによって前記ワークの折曲げ加工を行い、
ワークの折曲げ終了後に加圧力を解除したとき、前記パ
ンチの下端部から前記押え部材の下端部が突出し、当該
押え部材の下端部と前記ダイの溝とによって前記ワーク
を保持する構成としてなるものである。
[Means for Solving the Problems] (Means for Solving the Problems) In view of the conventional problems as described above, the present invention has a groove formed in the lower portion of the punch, in which the cross-sectional shape of the lower end portion is the lower end portion of the punch. A pressing member having the same shape as the cross-sectional shape is provided so as to be able to project downward, and when the work of bending is performed by the punch and the die, the lower end of the punch and the lower end of the pressing member are Is flush and performs bending work of the work by the both lower ends and the groove of the die,
When the pressing force is released after the bending of the work is finished, the lower end of the pressing member projects from the lower end of the punch, and the work is held by the lower end of the pressing member and the groove of the die. Is.

(実施例) 以下、この考案の実施例を図面に基づいて詳細に説明
する。なお、曲げ加工機として本実施例ではプレスブレ
ーキを例にとって説明する。
(Embodiment) Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. In this embodiment, a press brake will be described as an example of the bending machine.

第7図および第8図を参照するに、プレスブレーキ1
は、機体3の下部に油圧シリンダ5によって上下動する
可動下部テーブル7が設けられ、この可動下部テーブル
7の上部に支持部材9を介してダイ11が固着してある。
Referring to FIG. 7 and FIG. 8, the press brake 1
In the lower part of the machine body 3, a movable lower table 7 which is vertically moved by a hydraulic cylinder 5 is provided, and a die 11 is fixed to the upper part of the movable lower table 7 via a support member 9.

更に、機体3の上部より垂下した固定上部テーブル13
の下端部に支持部材15を介してパンチ17が固着され、前
記ダイ11とパンチ17を支持部材9,15に固定するためにク
ランプ装置19および21が複数箇所配設してある。
Further, the fixed upper table 13 hanging from the upper part of the machine body 3
A punch 17 is fixed to the lower end of the punch through a support member 15, and a plurality of clamp devices 19 and 21 are provided to fix the die 11 and the punch 17 to the support members 9 and 15.

上記構成により、油圧シリンダ5の作動によりダイ11
が上下動し、パンチ17との間で協働して被加工材Wの曲
げ加工が行なわれる。
With the above configuration, the die 11 is operated by the operation of the hydraulic cylinder 5.
Moves up and down, and the work W is bent in cooperation with the punch 17.

次に、本実施例の主要部であるパンチ17について、更
に詳細に説明する。
Next, the punch 17, which is the main part of this embodiment, will be described in more detail.

第1図乃至第3図を参照するに、V字形の凸形部23a
を形成したパンチ17の長手方向の適所に、パンチ17と同
一形状をしたV字形の凸形部23bを形成した押え部材25
が装着されている。この押え部材25は、パンチ17に形成
した溝27内に設けたレール29に係合し、上下に移動自在
に設けられ、押え部材25の上面にボルト31が立設してあ
る。このボルト31の上端は、前記パンチ17に設けた溝27
の上部に一体的に設けた当接板33を貫通し、溝27の上部
に設けた逃げ溝35内に突出していて、ボルト31にはナッ
ト37が構成してある。
Referring to FIG. 1 to FIG. 3, a V-shaped convex portion 23a
A pressing member 25 having a V-shaped convex portion 23b having the same shape as that of the punch 17 is formed at a proper position in the longitudinal direction of the punch 17 in which the punch 17 is formed.
Is installed. The pressing member 25 engages with a rail 29 provided in a groove 27 formed in the punch 17 and is movably provided up and down, and a bolt 31 is provided upright on the upper surface of the pressing member 25. The upper end of the bolt 31 has a groove 27 formed in the punch 17.
A nut 37 is formed on the bolt 31 by penetrating a contact plate 33 integrally provided on the upper part of the above and projecting into an escape groove 35 provided on the upper part of the groove 27.

更に、前記当接板33と押え部材25との間には、付勢部
材39である例えばスプリングが装着され、前記ナット37
の調節により、常時付勢部材39にて押え部材25に形成し
た凸形部23bは、パンチ17の凸形部23aより突出するよう
付勢されている(第3図参照)。
Further, between the contact plate 33 and the pressing member 25, a biasing member 39, for example, a spring is mounted, and the nut 37
Adjustment, the convex portion 23b formed on the pressing member 25 by the biasing member 39 is constantly biased so as to project from the convex portion 23a of the punch 17 (see FIG. 3).

上記構成により、パンチ17の一部分に設けた押え部材
25は、常時若干量突出した状態にあり、加圧力が負荷さ
れると、押え部材25は付勢部材39であるスプリングの弾
発力に抗して引込み、パンチ17の凸形部23aと押え部材2
5の凸形部23bは面一となる。
With the above configuration, a pressing member provided in a part of the punch 17
When the pressing force is applied to the pressing member 25, the pressing member 25 retracts against the elastic force of the spring, which is the biasing member 39, and presses against the convex portion 23a of the punch 17. Member 2
The convex portions 23b of 5 are flush with each other.

既に理解されるように、押え部材25の下端部の凸形部
23bの断面形状は、パンチ17の下端部の凸形部23aの断面
形状と同一に形成してある。
As already understood, the convex portion of the lower end of the pressing member 25
The cross-sectional shape of 23b is the same as the cross-sectional shape of the convex portion 23a at the lower end of the punch 17.

次に、その作用を第4図乃至第6図を参照しつつ説明
する。
Next, the operation will be described with reference to FIGS. 4 to 6.

第4図は被加工材Wを加圧した状態を示し、第5図は
加圧力を解除した状態を示す。
FIG. 4 shows a state in which the workpiece W is pressed, and FIG. 5 shows a state in which the pressing force is released.

すなわち、ダイ11のV形状をした溝41上に載置した被
加工材Wを、パンチ17と協働して折曲げ加工が行なわれ
る。この時、押え部材25は付勢部材39であるスプリング
の弾発力に抗して引込み、パンチ17の凸形部23aと押え
部材25の凸形部23bとは面一となる(第4図参照)。
That is, the work W placed on the V-shaped groove 41 of the die 11 is bent in cooperation with the punch 17. At this time, the pressing member 25 is retracted against the elastic force of the spring, which is the biasing member 39, and the convex portion 23a of the punch 17 and the convex portion 23b of the pressing member 25 are flush with each other (see FIG. 4). reference).

被加工材WをV形に加工したら加圧力を解除する。こ
の際、第5図に示すごとく、押え部材25の突出量δは、
前述したごとくナット37の調節により可変とすることが
できる。突出量δとしては、一般的に被加工材Wに曲げ
加工を行なったときに発生するスプリングバックは、ダ
イ11が上死点より例えば4/100mm下降した位置で、すで
に発生するので、セットする突出量δは、例えば0〜0.
5mm程度で充分である。
When the workpiece W is processed into a V shape, the pressing force is released. At this time, as shown in FIG. 5, the protrusion amount δ of the pressing member 25 is
As described above, it can be changed by adjusting the nut 37. As the protrusion amount δ, the springback which is generally generated when the work W is bent is already set at a position where the die 11 is lowered from the top dead center by, for example, 4/100 mm, and thus is set. The protrusion amount δ is, for example, 0 to 0.
5mm is enough.

上記のごとく所定量に突出量δがセットされていれ
ば、その突出量δだけダイ11を下降して加圧力を解除す
れば、被加工材Wはダイ11の肩A点2点と、押え部材25
の先端B点の3点で保持されるので、被加工材Wを安定
してダイ11上に保持できる。
If the projection amount δ is set to the predetermined amount as described above, the work piece W is pressed to the shoulder A point 2 points of the die 11 by pressing down the die 11 by the projection amount δ and releasing the pressing force. Member 25
The workpiece W can be stably held on the die 11 since it is held at three points B of the tip.

このため、第5図に示すごとく、ダイ11の側面近傍に
垂直に設けた曲げ角度検出装置43である例えば光電式あ
るいは渦電流式等の距離センサにより、スプリングバッ
ク後の被加工材Wとセンサ間距離変化l2を測定し、第11
図に示す距離・角度変換関数および変換表を用いて、角
度変化に直すことができ、正確な曲げ角度を知ることが
できる。
Therefore, as shown in FIG. 5, a bending angle detecting device 43 vertically provided near the side surface of the die 11 such as a photoelectric or eddy current type distance sensor is used to process the workpiece W after the springback and the sensor. Measure the distance change l 2 and
By using the distance / angle conversion function and conversion table shown in the figure, it is possible to correct the angle change and to know the accurate bending angle.

更に、目的の曲げ角度を自動的に得るには、第6図に
示すフローチャートに示す操作により可能となる。
Further, the desired bending angle can be automatically obtained by the operation shown in the flowchart of FIG.

すなわち、ステップS1にて、被加工材Wをダイ11上に
セットし、ステップS2にて、曲げ加工を行なう。
That is, the workpiece W is set on the die 11 in step S1, and the bending process is performed in step S2.

次に、ステップS3にて、加圧力を解除しスプリングバ
ック量を含めた仕上角度を、曲げ角度検出装置43にて距
離を測定する。測定された距離が目的の角度になったと
き、(ステップS4)作業を終了し、ステップS4にて目的
の角度にならない時は、ステップS2に戻り更に曲げ加工
を行なう。
Next, in step S3, the pressurizing force is released, and the bending angle detecting device 43 measures the finishing angle including the springback amount. When the measured distance reaches the target angle (step S4), the work is ended, and when the target angle is not reached in step S4, the process returns to step S2 to perform further bending.

このように、一旦被加工材Wを曲げ加工機であるプレ
スブレーキ1にセットすれば、人手を要さず目的の曲げ
角度を得ることができ、作業性の向上を図ることができ
る。
In this way, once the workpiece W is set on the press brake 1 which is a bending machine, it is possible to obtain a desired bending angle without requiring manpower and improve workability.

なお、この考案は前述した実施例に限定されることな
く、適宜の変更を行なうことにより、その他の態様で実
施し得るものである。本実施例ではダイ11を上下動させ
ているが、パンチ17を上下動させるプレスブレーキ1な
どの曲げ加工機でも対応可能である。
The present invention is not limited to the above-described embodiments, but can be implemented in other modes by making appropriate changes. In this embodiment, the die 11 is moved up and down, but a bending machine such as the press brake 1 that moves the punch 17 up and down can be used.

[考案の効果] 以上のごとき実施例の説明より理解されるように、要
するに本考案は、パンチ(17)の下部に形成した溝(2
7)内に、下端部の断面形状が上記パンチ(17)の下端
部の断面形状と同一の形状をなした押え部材(25)を下
方向へ突出可能に付勢して設け、上記パンチ(17)とダ
イ(11)によってワーク(W)の折曲げ加工を行うと
き、前記パンチ(17)の下端部と押え部材(25)の下端
部とが面一になって上記両下端部とダイ(11)の溝(4
1)とによって前記ワーク(W)の折曲げ加工を行い、
ワーク(W)の折曲げ終了後に加圧力を解除したとき、
前記パンチ(17)の下端部から前記押え部材(25)の下
端部が突出し、当該押え部材(25)の下端部と前記ダイ
(11)の溝(41)とによって前記ワーク(W)を保持す
る構成としてなるものである。
[Effects of the Invention] As can be understood from the above description of the embodiments, the present invention is, in short, the groove (2) formed in the lower part of the punch (17).
In the inside of 7), a pressing member (25) whose bottom end has the same cross-sectional shape as the bottom end of the punch (17) is provided so as to be capable of projecting downward, and the punch (25 When the work (W) is bent by the die (17) and the die (11), the lower end of the punch (17) and the lower end of the holding member (25) are flush with each other and the die and the die. Groove (11) (4
The work (W) is bent by 1) and
When the pressure is released after the work (W) is bent,
The lower end of the pressing member (25) projects from the lower end of the punch (17), and the work (W) is held by the lower end of the pressing member (25) and the groove (41) of the die (11). It is configured to do.

上記構成より明らかなように、本考案においては、パ
ンチ17に形成した溝27内に設けた押え部材25の下端部の
断面形状は上記パンチ17の下端部の断面形状と同一であ
り、かつ上記押え部材25の下端部はパンチ17の下端部と
同時にワークWの折曲げに供されるものである。
As is apparent from the above configuration, in the present invention, the sectional shape of the lower end portion of the pressing member 25 provided in the groove 27 formed in the punch 17 is the same as the sectional shape of the lower end portion of the punch 17, and The lower end of the pressing member 25 is used for bending the work W at the same time as the lower end of the punch 17.

そして、ワークWの折曲げ加工後に加圧力を解除した
ときには、押え部材25の下端部がパンチ17の下端部から
突出してダイ11の溝41との間にワークWを保持する構成
である。
When the pressing force is released after the work W is bent, the lower end of the pressing member 25 projects from the lower end of the punch 17 and holds the work W between the groove 41 of the die 11.

したがって、本考案によれば、押え部材25の左右方向
の幅を比較的大きくした場合であっても、当該押え部材
25の下端部でもってワークWの折曲げ加工を行い得るの
で、何等の問題がないものであり、しかも、ワークWの
折曲げ加工後に押圧力を解除したときには、押え部材25
の下端部がワークWの折曲げ部に係合した態様となり、
ワークWの傾きを規制してダイ11の溝41との間にワーク
Wを保持するので、ワークWにスプリングバックを生じ
た後であっても、ダイ11の溝41に対してワークWを正確
に保持することができるものである。
Therefore, according to the present invention, even when the width of the pressing member 25 in the left-right direction is relatively large, the pressing member 25
Since the work W can be bent by the lower end of the work 25, there is no problem, and when the pressing force is released after the work W is bent, the pressing member 25
The lower end of the work engages with the bent portion of the work W,
Since the work W is held between the groove 41 of the die 11 by regulating the inclination of the work W, the work W is accurately aligned with the groove 41 of the die 11 even after the spring back is generated in the work W. Can be held in.

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

第1図乃至第3図はこの考案の主要部を示し、第1図は
第8図におけるI矢視部の拡大斜視図、第2図は第1図
におけるII−II線に沿った断面図、第3図は第1図と同
様にして押え部材が突出した状態を示す斜視図である。
第4図および第5図は作用説明図であり、第4図は第1
図における側面図、第5図は第3図における側面図であ
る。第6図は自動化を行なうフローチャートである。第
7図および第8図はこの考案を実施する一実施例のプレ
スブレーキを示し、第7図は正面図、第8図は第7図に
おけるVIII−VIII線に沿った断面図である。第9図乃至
第12図は従来例を示し、第9図および第10図は曲げ角度
検出装置にて角度測定時の説明図、第11図は距離変化よ
り曲げ角度を知るグラフ、第12図は従来の曲げ角度測定
時の不具合を示す説明図である。 1…プレスブレーキ、11…ダイ 17…パンチ、23a,b…凸形部 25…押え部材、39…付勢部材 41…溝、43…曲げ角度検出装置
1 to 3 show a main part of the present invention, FIG. 1 is an enlarged perspective view of an I arrow portion in FIG. 8, and FIG. 2 is a sectional view taken along line II-II in FIG. , FIG. 3 is a perspective view showing a state in which the pressing member is projected as in FIG. 1.
4 and 5 are explanatory views of the operation, and FIG.
FIG. 5 is a side view in the figure, and FIG. 5 is a side view in FIG. FIG. 6 is a flow chart for automation. 7 and 8 show a press brake of one embodiment for carrying out the present invention, FIG. 7 is a front view, and FIG. 8 is a sectional view taken along the line VIII-VIII in FIG. FIGS. 9 to 12 show a conventional example, FIGS. 9 and 10 are explanatory views when an angle is measured by a bending angle detection device, FIG. 11 is a graph for knowing a bending angle from a distance change, and FIG. FIG. 8 is an explanatory view showing a problem at the time of measuring a conventional bending angle. 1 ... Press brake, 11 ... Die 17 ... Punch, 23a, b ... Convex part 25 ... Pressing member, 39 ... Biasing member 41 ... Groove, 43 ... Bending angle detecting device

Claims (1)

(57)【実用新案登録請求の範囲】(57) [Scope of utility model registration request] 【請求項1】パンチ(17)の下部に形成した溝(27)内
に、下端部の断面形状が上記パンチ(17)の下端部の断
面形状と同一の形状をなした押え部材(25)を下方向へ
突出可能に付勢して設け、上記パンチ(17)とダイ(1
1)によってワーク(W)の折曲げ加工を行うとき、前
記パンチ(17)の下端部と押え部材(25)の下端部とが
面一になって上記両下端部とダイ(11)の溝(41)とに
よって前記ワーク(W)の折曲げ加工を行い、ワーク
(W)の折曲げ終了後に加圧力を解除したとき、前記パ
ンチ(17)の下端部から前記押え部材(25)の下端部が
突出し、当該押え部材(25)の下端部と前記ダイ(11)
の溝(41)とによって前記ワーク(W)を保持する構成
としてなることを特徴とする曲げ加工機の金型。
1. A holding member (25) having a lower end having the same sectional shape as the lower end of the punch (17) in a groove (27) formed in the lower portion of the punch (17). Is provided so as to project downward, and the punch (17) and die (1
When the work (W) is bent by (1), the lower end of the punch (17) and the lower end of the pressing member (25) are flush with each other, and the lower end and the groove of the die (11). When the work (W) is bent by (41) and the pressing force is released after the work (W) is bent, the lower end of the punch (17) is moved to the lower end of the pressing member (25). The protruding portion, the lower end of the pressing member (25) and the die (11).
A die for a bending machine, characterized in that the work (W) is held by the groove (41).
JP1990030480U 1990-03-27 1990-03-27 Bending machine mold Expired - Lifetime JP2508011Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1990030480U JP2508011Y2 (en) 1990-03-27 1990-03-27 Bending machine mold

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1990030480U JP2508011Y2 (en) 1990-03-27 1990-03-27 Bending machine mold

Publications (2)

Publication Number Publication Date
JPH03120913U JPH03120913U (en) 1991-12-11
JP2508011Y2 true JP2508011Y2 (en) 1996-08-21

Family

ID=31533191

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1990030480U Expired - Lifetime JP2508011Y2 (en) 1990-03-27 1990-03-27 Bending machine mold

Country Status (1)

Country Link
JP (1) JP2508011Y2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001053017A1 (en) * 2000-01-17 2001-07-26 Amada Company, Limited Sheet working method, sheet working system, and various devices related to such system

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5151705B2 (en) * 2008-06-06 2013-02-27 村田機械株式会社 Bending machine front and back asymmetric mold

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6142654U (en) * 1984-08-17 1986-03-19 三菱電機株式会社 Electronic computer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001053017A1 (en) * 2000-01-17 2001-07-26 Amada Company, Limited Sheet working method, sheet working system, and various devices related to such system

Also Published As

Publication number Publication date
JPH03120913U (en) 1991-12-11

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