JP3841911B2 - Upper mold in press - Google Patents

Upper mold in press Download PDF

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Publication number
JP3841911B2
JP3841911B2 JP05348097A JP5348097A JP3841911B2 JP 3841911 B2 JP3841911 B2 JP 3841911B2 JP 05348097 A JP05348097 A JP 05348097A JP 5348097 A JP5348097 A JP 5348097A JP 3841911 B2 JP3841911 B2 JP 3841911B2
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Japan
Prior art keywords
upper mold
cam
locking
inner cylinder
groove
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JP05348097A
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JPH10249439A (en
Inventor
英夫 須田
昭 田口
明彦 能
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Amada Co Ltd
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Amada Co Ltd
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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
    • B21D5/0209—Tools therefor
    • B21D5/0236—Tool clamping

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Mounting, Exchange, And Manufacturing Of Dies (AREA)

Description

【０００１】
【発明の属する技術分野】
本発明は、例えばプレスブレーキ等のごときプレスにおける上金型に係り、さらに詳細には着脱交換を容易に行うことのできる上金型に関する。
【０００２】
【従来の技術】
従来、プレスブレーキ等における上型ホルダに対して上金型を着脱交換する構成として、図７に示すごとき構成のものがある。
【０００３】
すなわち、上型ホルダ１０１の下部に下側へ開口して形成した係合溝１０３に係合した上金型１０５の上部の取付面に溝１０７を形成し、この溝１０７内に設けたスプリング１０９によって外方へ突出するように付勢された係止部材１１１の係止部１１１Ｋを、上型ホルダ１０１に形成した係止部としての係止溝１１３に落下しないように係止した構成である。
【０００４】
【発明が解決しようとする課題】
前記構成において、上型ホルダ１０１に対する上金型１０５の着脱交換は、先ず、上金型１０５を上型ホルダ１０１に固定した複数の固定ピン１１５を緩める。この際、係止部材１１１の係止部１１１Ｋが係止溝１１３に係止された状態にあり、上金型１０５は定位置に保持されている。
【０００５】
次に、スプリング１０９の付勢力に抗して係止部材１１１を溝１０７内に没入すると、係止部材１１１の係止部１１１Ｋが係止溝１１３から外れるので、上金型１０５を下方向へ取り外すことができる。
【０００６】
上述のごとく係止部材１１１を溝１０７内に没入せしめるときには、上金型１０５が自重によって落下しないように支える必要がある。この際、上金型１０５の左右方向（図７においては紙面に対して垂直な方向）の長さが短く、例えば係止部材１１１が１個である場合には問題ないが、上金型１０５の左右方向の長さが大きく、上金型１０５の複数箇所に係止部材１１１が設けられている構成においては、上金型１０５を支えながら複数の係止部材１１１を同時に操作して係止溝１１３から外さなければならず、操作が厄介であるという問題がある。
【０００７】
【課題を解決するための手段】
本発明は上述のごとき従来の問題に鑑みてなされたもので、プレス機械における上型ホルダに対して着脱可能の上金型において、上記上型ホルダに形成した係止部に対して係脱可能の係止部材を前記上金型の取付面に対して出没可能に設けると共に突出する方向へ付勢して設け、上記取付面に取付けた外筒の内面に端面カム状部材を設け、この外筒内に軸方向へ移動可能かつ相対的に回転可能に設けた内筒に、前記端面カム状部材に係合可能かつ端面カム状部材間の軸方向の係合溝に係合可能の傾斜カムを設けると共に上記内筒と前記係止部材とを連結して設け、前記内筒の傾斜カムを前記端面カム状部材および前記係合溝に対して係合離脱するためのガイドカムを前記外筒内に軸方向へ移動可能に設けてなることを特徴とするものである。
【０００９】
【発明の実施の形態】
図１を参照するに、プレス機械（図示省略）における上型ホルダ１（従来の上型ホルダと同一構成であるから詳細は図示省略）の下部に下側へ開口して形成した係合溝３内には上金型５の上部が上下方向に係合離脱可能に係合されている。なお、上型ホルダ１の構成および上型ホルダ１に対する上金型５の係合部分の構成は前述した従来の構成と同一であるが、概略的に説明する。
【００１０】
上金型５の取付面には従来と同様に溝７が形成してあり、この溝７内には内装したスプリング９によって外方向へ突出するように付勢された係止部材１１が設けられている。この係止部材１１は、上型ホルダ１に形成した係止部としての係止溝１３に対して係脱可能のフック部１５を上端部に備え、下端部に操作杆１７を備えた構成である。
【００１１】
前記係止部材１１を上金型５の取付面から没入した状態にロック可能のロック装置１８が設けてある。すなわち、上金型５の取付面には外筒１９が水平に取付けてあり、この外筒１９内には、複数の端面カム状部材２１が適宜間隔に設けてある。上記端面カム状部材２１は、上金型５側の端面を傾斜面２１Ｓに形成すると共に、この傾斜面２１Ｓの一側部に端面が同方向へ傾斜した突出部２１Ｐを備えた構成であって、各端面カム状部材２１の間には軸方向に係合溝２３が形成してある。なお、端面カム状部材２１は予め円筒形状に形成することもできるものである。
【００１２】
前記外筒１９内には内筒２５が軸方向へ移動可能かつ相対的に回動可能に嵌合してある。上記内筒２５は、前記係合溝２３に係合可能のガイドリブ２７を周面に突出して備えた形状をなしており、このガイドリブ２７の上金型５と反対側の端面には周方向に傾斜した傾斜カム面２７Ｃが形成してある。そして、上記内筒２５と前記係止部材１１の操作杆１７は、軸方向（図１において左右方向）には一体的に移動するが、軸心回りには相対的に回転可能であるように適宜に連結してある。
【００１３】
前記外筒１９に対して前記内筒２５を軸方向に移動し、また軸心回りに回動して、前記端面カム状部材２１の傾斜面２１Ｓおよび係合溝２３に対して係合離脱するために、前記外筒１９内にはガイドカム２９の一端側が軸方向に移動可能に嵌入してある。このガイドカム２９は円筒形状をなしており、前記内筒２５と対向した内端部とは、図４に示すように、山部３１および谷部３３が等間隔に形成してある。
【００１４】
上記ガイドカム２９の山部３１と谷部３３との間に形成された傾斜面３５は、前記内筒２５におけるガイドリブ２７の端面に形成した傾斜カム面２７Ｃと係合可能に設けてある。なお、上記ガイドカム２９における山部３１は前記端面カム状部材２１の間の係合溝２３に対応するように設けられている。
【００１５】
以上のごとき構成において、外筒１９を展開すると共に内筒２５を展開し、かつガイドカム２９を展開して、端面カム状部材２１，係合溝２３と内筒２５におけるガイドリブ２７とガイドカム２９の山部３１と谷部３３との関係を概念的に示すと、図５に示すようになる。
【００１６】
ここで、上金型５に備えた係止部材１１がスプリング９によって押圧され、そのフック部１５が上型ホルダ１の係止溝１３に係止された状態においては、図６（Ａ）に示すように、内筒２５のガイドリブ２７は端面カム状部材２１の係合溝２３に係合した状態にある。
【００１７】
したがって、前記係止溝１３と係止部材１１のフック部１５との係止状態を解除するには、図１においてガイドカム２９を左方向へ押圧する。上述のようにガイドカム２９を押圧すると、図６（Ａ）に示すように、ガイドカム２９の端面の傾斜面３５がガイドリブ２７の傾斜面２７Ｃに当接し、内筒２５を左方向へ押圧し、上記ガイドリブ２７を係合溝２３から離脱する［図６（Ｂ）］。
【００１８】
図６（Ｂ）に示すように、内筒２５のガイドリブ２７が端面カム状部材２１の係合溝２３から離脱されると、ガイドカム２９の端面の傾斜面３５とガイドリブ２７の傾斜カム面２７Ｃとが当接していることにより、相対的な滑りを生じ、内筒２５のガイドリブ２７は、端面カム状部材２１における傾斜面２１Ｓと対向することになる。その後、ガイドカム２９の押圧を解除すると、スプリング９の作用により、係止部材１１を介して内筒２５が図６において右方向へ移動され、ガイドリブ２７の傾斜カム面２７Ｃは、図６（Ｃ）に示すように、端面カム状部材２１の傾斜面２１Ｓに係合することになる。
【００１９】
上述のように、ガイドリブ２７の傾斜カム面２７Ｃが端面カム状部材２１の傾斜面２１Ｓに係合した状態においては、係止部材１１におけるフック部１５は溝７内に没入されて上型ホルダ１の係止溝１３との係止状態が解除された状態にある。したがって、上金型５に備えた複数箇所のガイドカム２９を次々に外筒１９内へ押圧して同様の操作を行うことにより、複数箇所の係止部材１１と係合溝１３との係止が解除されることとなり、上型ホルダ１から上金型５を下方向に取り外すことができるものである。
【００２０】
上述のごとく上型ホルダ１から上金型５を取り外した後、各ガイドカム２９を外筒１９内へ再び押圧して内筒２５のガイドリブ２７を再び押圧し大きく移動すると、上記ガイドリブ２７は端面カム状部材２１における突出部２１Ｐを乗り越えることとなり、初期の状態（図６（Ａ）の状態）に復帰することになる。
【００２１】
既に理解されるように、上金型５の複数箇所に設けた外筒１９に対してガイドカム２９を押圧操作することにより、複数箇所に備えた係止部材１１におけるフック部１５を上型ホルダ１における係止溝１３から順次外した状態に保持することができ、上型ホルダ１からの上金型５の取り外しを容易に行うことができるものであり、前記ガイドカム２９を再度押圧操作することにより初期状態に復帰することができ、上型ホルダ１に対する上金型５の着脱交換を容易に行うことができるものである。
【００２２】
【発明の効果】
以上のごとき説明より理解されるように、請求項１に係る発明は、プレス機械における上型ホルダに対して着脱交換可能の上金型において、上記上型ホルダに形成した係止部に対して係脱可能の係止部材を前記上型の取付面に対して出没可能に設け、上記取付面に対して前記係止部材を没入状態にロック可能のロック装置を前記取付面に設けてなるものであるから、上金型の複数箇所に係止部材が設けてある場合であっても、上型ホルダに対する上金型の取り外しを容易に行うことができるものである。
【００２３】
請求項２に係る発明は、プレス機械における上型ホルダに対して着脱可能の上金型において、上記上型ホルダに形成した係止部に対して係脱可能の係止部材を取付面に対して出没可能に設けると共に突出する方向へ付勢して設け、上記取付面に取付けた外筒の内面に端面カム状部材を設け、この外筒内に軸方向へ移動可能かつ相対的に回転可能に設けた内筒に、前記端面カム状部材に係合可能かつ端面カム状部材間の軸方向の係合溝に係合可能の傾斜カムを設けると共に上記内筒と前記係止部材とを連結して設け、前記内筒の傾斜カムを前記端面カム状部材および前記係合溝に対して係合離脱するためのガイドカムを前記外筒内に軸方向へ移動可能に設けてなるものであるから、上金型の複数箇所に係止部材を設けた構成であっても、上型ホルダに対する上金型の着脱交換を容易に行うことができるものである。
【図面の簡単な説明】
【図１】プレスにおける上金型の主要部分を示す断面説明図である。
【図２】端面カム状部材の配置および形状を示す説明図である。
【図３】内筒の説明図である。
【図４】ガイドカムの端部形状を示す傾斜図である。
【図５】主要部分を展開した状態で示した説明図である。
【図６】主要部分の作用説明図である。
【図７】従来の構成を示す説明図である。
【符号の説明】
１ 上型ホルダ
３ 係合溝
５ 上金型
７ 溝
１１ 係止部材
１３ 係止溝
１５ フック部
１７ 操作杆
１９ 外筒
２１ 端面カム状部材
２３ 係合溝
２５ 内筒
２７ ガイドリブ
２９ ガイドカム
３１ 山部
３３ 谷部[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an upper mold in a press such as a press brake, and more particularly to an upper mold that can be easily attached and detached.
[0002]
[Prior art]
Conventionally, there is a configuration as shown in FIG. 7 as a configuration in which the upper die is attached to and detached from the upper die holder in a press brake or the like.
[0003]
That is, the groove 107 is formed on the upper mounting surface of the upper mold 105 engaged with the engaging groove 103 formed in the lower part of the upper mold holder 101 so as to open downward, and the spring 109 provided in the groove 107 is formed. The locking portion 111K of the locking member 111 urged so as to protrude outward is locked so as not to fall into a locking groove 113 as a locking portion formed in the upper mold holder 101. .
[0004]
[Problems to be solved by the invention]
In the above configuration, when the upper mold 105 is attached to and detached from the upper mold holder 101, first, the plurality of fixing pins 115 that fix the upper mold 105 to the upper mold holder 101 are loosened. At this time, the locking portion 111K of the locking member 111 is locked in the locking groove 113, and the upper mold 105 is held in a fixed position.
[0005]
Next, when the locking member 111 is immersed in the groove 107 against the urging force of the spring 109, the locking portion 111K of the locking member 111 is disengaged from the locking groove 113, so that the upper mold 105 is moved downward. Can be removed.
[0006]
When the locking member 111 is immersed in the groove 107 as described above, it is necessary to support the upper mold 105 so that it does not fall due to its own weight. At this time, the length of the upper mold 105 in the left-right direction (perpendicular to the paper surface in FIG. 7) is short, and there is no problem when there is one locking member 111, for example. In the configuration in which the locking member 111 is provided at a plurality of locations of the upper mold 105, the plurality of locking members 111 are simultaneously operated and locked while supporting the upper mold 105. There is a problem that the operation is troublesome because it must be removed from the groove 113.
[0007]
[Means for Solving the Problems]
The present invention has been made in view of the above-described conventional problems. In an upper mold that can be attached to and detached from the upper mold holder in a press machine , the present invention can be engaged with and disengaged from a locking portion formed on the upper mold holder. The locking member is provided so as to be able to project and retract with respect to the mounting surface of the upper mold, and is biased in the protruding direction, and an end face cam-like member is provided on the inner surface of the outer cylinder attached to the mounting surface. An inclined cam that is engageable with the end face cam-like member and engages with an axial engagement groove between the end face cam-like members on an inner cylinder that is axially movable and relatively rotatable in the cylinder. A guide cam for engaging and releasing the inclined cam of the inner cylinder with respect to the end face cam-like member and the engaging groove. It is characterized by being provided so as to be movable in the axial direction .
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Referring to FIG. 1, an engagement groove 3 formed by opening downward in the lower part of an upper mold holder 1 (not shown in detail because it has the same configuration as a conventional upper mold holder) in a press machine (not shown). Inside, the upper part of the upper mold 5 is engaged so as to be disengageable in the vertical direction. The configuration of the upper mold holder 1 and the configuration of the engaging portion of the upper mold 5 with respect to the upper mold holder 1 are the same as the conventional configuration described above, but will be described briefly.
[0010]
A groove 7 is formed on the mounting surface of the upper mold 5 as in the prior art, and a locking member 11 urged so as to protrude outward by an internally mounted spring 9 is provided in the groove 7. ing. The locking member 11 has a configuration in which a hook portion 15 detachable with respect to a locking groove 13 as a locking portion formed in the upper mold holder 1 is provided at an upper end portion and an operation rod 17 is provided at a lower end portion. is there.
[0011]
A locking device 18 that can be locked in a state in which the locking member 11 is immersed from the mounting surface of the upper mold 5 is provided. That is, the outer cylinder 19 is mounted horizontally on the mounting surface of the upper mold 5, and a plurality of end face cam-like members 21 are provided in the outer cylinder 19 at appropriate intervals. The end face cam-like member 21 has a configuration in which an end face on the upper mold 5 side is formed on an inclined face 21S, and a protruding portion 21P whose end face is inclined in the same direction is provided on one side of the inclined face 21S. An engagement groove 23 is formed between the end face cam-like members 21 in the axial direction. The end face cam-like member 21 can be formed in a cylindrical shape in advance.
[0012]
An inner cylinder 25 is fitted in the outer cylinder 19 so as to be movable in the axial direction and relatively rotatable. The inner cylinder 25 has a shape in which a guide rib 27 that can be engaged with the engagement groove 23 is protruded on the peripheral surface, and the end surface of the guide rib 27 opposite to the upper mold 5 is provided in the circumferential direction. An inclined cam surface 27C is formed. The inner cylinder 25 and the operating rod 17 of the locking member 11 move integrally in the axial direction (left and right direction in FIG. 1), but can rotate relatively around the axis. Connected appropriately.
[0013]
The inner cylinder 25 is moved in the axial direction with respect to the outer cylinder 19, and is rotated around the axis to be disengaged from the inclined surface 21 </ b> S and the engaging groove 23 of the end face cam-like member 21. Therefore, one end side of the guide cam 29 is fitted into the outer cylinder 19 so as to be movable in the axial direction. The guide cam 29 has a cylindrical shape, and as shown in FIG. 4, a crest 31 and a trough 33 are formed at equal intervals from the inner end facing the inner cylinder 25.
[0014]
An inclined surface 35 formed between the peak portion 31 and the valley portion 33 of the guide cam 29 is provided so as to be engageable with an inclined cam surface 27 </ b> C formed on the end surface of the guide rib 27 in the inner cylinder 25. The crest 31 of the guide cam 29 is provided so as to correspond to the engagement groove 23 between the end face cam-like members 21.
[0015]
In the configuration as described above, the outer cylinder 19 is expanded, the inner cylinder 25 is expanded, and the guide cam 29 is expanded, and the end face cam-like member 21, the engagement groove 23, the guide rib 27 and the guide cam 29 in the inner cylinder 25 are expanded. The relationship between the peak 31 and the valley 33 is conceptually shown in FIG.
[0016]
Here, in a state where the locking member 11 provided in the upper mold 5 is pressed by the spring 9 and the hook portion 15 is locked in the locking groove 13 of the upper mold holder 1, FIG. As shown, the guide rib 27 of the inner cylinder 25 is engaged with the engagement groove 23 of the end face cam-like member 21.
[0017]
Therefore, to release the locking state between the locking groove 13 and the hook portion 15 of the locking member 11, the guide cam 29 is pressed leftward in FIG. When the guide cam 29 is pressed as described above, the inclined surface 35 of the end surface of the guide cam 29 comes into contact with the inclined surface 27C of the guide rib 27 and presses the inner cylinder 25 leftward as shown in FIG. Then, the guide rib 27 is detached from the engagement groove 23 [FIG. 6B].
[0018]
As shown in FIG. 6B, when the guide rib 27 of the inner cylinder 25 is disengaged from the engaging groove 23 of the end face cam-like member 21, the inclined face 35 of the end face of the guide cam 29 and the inclined cam face 27C of the guide rib 27 are provided. And the guide rib 27 of the inner cylinder 25 is opposed to the inclined surface 21S of the end face cam-like member 21. Thereafter, when the pressing of the guide cam 29 is released, the inner cylinder 25 is moved to the right in FIG. 6 via the locking member 11 by the action of the spring 9, and the inclined cam surface 27C of the guide rib 27 is changed to the position shown in FIG. ), The inclined surface 21S of the end cam member 21 is engaged.
[0019]
As described above, in the state in which the inclined cam surface 27C of the guide rib 27 is engaged with the inclined surface 21S of the end face cam-like member 21, the hook portion 15 of the locking member 11 is immersed in the groove 7 and the upper mold holder 1 is engaged. The locked state with the locking groove 13 is in a released state. Accordingly, the plurality of guide cams 29 provided in the upper mold 5 are successively pressed into the outer cylinder 19 and the same operation is performed, so that the locking members 11 and the engaging grooves 13 are locked. Is released, and the upper mold 5 can be removed downward from the upper mold holder 1.
[0020]
After removing the upper mold 5 from the upper mold holder 1 as described above, when the guide cams 29 are pressed again into the outer cylinder 19 and the guide ribs 27 of the inner cylinder 25 are pressed again and moved largely, the guide ribs 27 are moved to the end faces. The protrusion 21P in the cam-like member 21 is overcome, and the initial state (the state shown in FIG. 6A) is restored.
[0021]
As already understood, by pressing the guide cam 29 against the outer cylinders 19 provided at a plurality of locations of the upper mold 5, the hook portions 15 of the locking members 11 provided at the plurality of locations are moved to the upper mold holder. The upper mold 5 can be easily removed from the upper holder 1 and the guide cam 29 is pressed again. Thus, the initial state can be restored, and the upper die 5 can be easily attached to and detached from the upper die holder 1.
[0022]
【The invention's effect】
As can be understood from the above description, the invention according to claim 1 is an upper mold that can be attached to and detached from the upper mold holder in a press machine, with respect to a locking portion formed on the upper mold holder. An engaging member that can be engaged and disengaged is provided so as to be able to protrude and retract with respect to the mounting surface of the upper mold, and a locking device is provided on the mounting surface that can lock the engaging member into an immersion state with respect to the mounting surface. Therefore, even when the locking members are provided at a plurality of locations of the upper mold, the upper mold can be easily removed from the upper mold holder.
[0023]
According to a second aspect of the present invention, there is provided an upper die detachable with respect to the upper die holder in the press machine, wherein a locking member detachable with respect to the locking portion formed on the upper die holder is attached to the mounting surface. Provided in such a way that it can be projected and retracted and urged in the protruding direction, an end face cam-like member is provided on the inner surface of the outer cylinder attached to the mounting surface, and it can be moved in the axial direction and relatively rotated in the outer cylinder. An inclined cam that can be engaged with the end face cam-like member and engageable in an axial engagement groove between the end face cam-like members is provided on the inner cylinder provided on the inner cylinder, and the inner cylinder and the locking member are connected to each other. A guide cam for engaging and releasing the inclined cam of the inner cylinder with respect to the end face cam-like member and the engaging groove is provided in the outer cylinder so as to be movable in the axial direction. Even if the upper mold is provided with locking members at a plurality of locations, the upper mold In which the detachable replacement of the upper mold can be easily performed for da.
[Brief description of the drawings]
FIG. 1 is a cross-sectional explanatory view showing a main part of an upper mold in a press.
FIG. 2 is an explanatory view showing the arrangement and shape of an end face cam-like member.
FIG. 3 is an explanatory diagram of an inner cylinder.
FIG. 4 is an inclined view showing an end shape of the guide cam.
FIG. 5 is an explanatory diagram showing the main part in an expanded state.
FIG. 6 is an explanatory diagram of the operation of the main part.
FIG. 7 is an explanatory diagram showing a conventional configuration.
[Explanation of symbols]
1 Upper mold holder 3 Engaging groove 5 Upper mold 7 Groove 11 Locking member 13 Locking groove 15 Hook 17 Operation rod 19 Outer cylinder 21 End face cam member 23 Engaging groove 25 Inner cylinder 27 Guide rib 29 Guide cam 31 Mountain Part 33 Valley

Claims (1)

プレス機械における上型ホルダに対して着脱可能の上金型において、上記上型ホルダに形成した係止部に対して係脱可能の係止部材を前記上金型の取付面に対して出没可能に設けると共に突出する方向へ付勢して設け、上記取付面に取付けた外筒の内面に端面カム状部材を設け、この外筒内に軸方向へ移動可能かつ相対的に回転可能に設けた内筒に、前記端面カム状部材に係合可能かつ端面カム状部材間の軸方向の係合溝に係合可能の傾斜カムを設けると共に上記内筒と前記係止部材とを連結して設け、前記内筒の傾斜カムを前記端面カム状部材および前記係合溝に対して係合離脱するためのガイドカムを前記外筒内に軸方向へ移動可能に設けてなることを特徴とするプレスにおける上金型。  In the upper mold that can be attached to and detached from the upper mold holder in a press machine, a locking member that can be engaged and disengaged with respect to the locking portion formed on the upper mold holder can be moved in and out of the mounting surface of the upper mold And an end face cam-like member provided on the inner surface of the outer cylinder attached to the mounting surface, and provided in the outer cylinder so as to be movable in the axial direction and relatively rotatable. The inner cylinder is provided with an inclined cam that can be engaged with the end face cam-like member and can be engaged with an axial engagement groove between the end face cam-like members, and the inner cylinder and the locking member are connected to each other. A press cam is provided in the outer cylinder so as to be movable in the axial direction for engaging and releasing the inclined cam of the inner cylinder with respect to the end cam-like member and the engagement groove. Upper mold in.
JP05348097A 1997-03-07 1997-03-07 Upper mold in press Expired - Fee Related JP3841911B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP05348097A JP3841911B2 (en) 1997-03-07 1997-03-07 Upper mold in press

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP05348097A JP3841911B2 (en) 1997-03-07 1997-03-07 Upper mold in press

Publications (2)

Publication Number Publication Date
JPH10249439A JPH10249439A (en) 1998-09-22
JP3841911B2 true JP3841911B2 (en) 2006-11-08

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4609810B2 (en) * 2004-07-20 2011-01-12 株式会社アマダ Bending die, die holder and die fall prevention device
ES2356911T3 (en) * 2006-06-01 2011-04-14 Wila B.V. TOOL WITH AN AUTOMATIC SECURITY DEVICE.
EP1980337B1 (en) * 2007-04-13 2012-08-08 Wila B.V. Clamping device for bending tools
JP5662183B2 (en) * 2011-02-01 2015-01-28 株式会社アマダ Upper holder for press brake

Also Published As

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