JPS6096331A - Drawing die for press machine - Google Patents

Drawing die for press machine

Info

Publication number
JPS6096331A
JPS6096331A JP58202285A JP20228583A JPS6096331A JP S6096331 A JPS6096331 A JP S6096331A JP 58202285 A JP58202285 A JP 58202285A JP 20228583 A JP20228583 A JP 20228583A JP S6096331 A JPS6096331 A JP S6096331A
Authority
JP
Japan
Prior art keywords
piston
punch
upper die
die
descending
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.)
Pending
Application number
JP58202285A
Other languages
Japanese (ja)
Inventor
Yoji Hosokawa
洋治 細川
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.)
Aida Engineering Ltd
Original Assignee
Aida Engineering 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 Aida Engineering Ltd filed Critical Aida Engineering Ltd
Priority to JP58202285A priority Critical patent/JPS6096331A/en
Publication of JPS6096331A publication Critical patent/JPS6096331A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D24/00Special deep-drawing arrangements in, or in connection with, presses
    • B21D24/04Blank holders; Mounting means therefor
    • B21D24/08Pneumatically or hydraulically loaded blank holders

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)

Abstract

PURPOSE:To decrease driving power by receiving the descending of a lower die by contact with an upper die by a hydraulic piston and rising a piston by the expelling oil thereof to rise the freely liftable punch of the lower die thereby reducing the descending distance of the upper die by half and increasing the drawing depth. CONSTITUTION:The upper die 5 of an upper die 2 is lowered to lower a lower die blank holder 12 and a hydraulic pressure generating piston 16. A piston 11 is risen by the expelling oil thereof through a passage 18 to rise a freely liftable punch 7. If the total area of the hydraulic pressure generating piston is approximately equal to the area of the punch piston 11, the punch 7 ascends by as much as the descending stroke of the upper die thereby reducing the descending distance of the upper die by half. Deep drawing is thus accomplished with the smaller descending stroke by which energy consumption is reduced and the working time is shortened.

Description

【発明の詳細な説明】 本発明はプレス機械用の絞り型に関するものである。[Detailed description of the invention] The present invention relates to a drawing die for a press machine.

従来、プレス機械で用いられる絞り型の最大絞り深さは
、単発加工のプレスでは絞る深さと、絞った成形品を金
型から抜き出す高さとを必要とするためプレスのスライ
ドのストロークの1/2となり、またトランスファプレ
スではこれらのほかに金型から抜き出した成形品を次の
工程に搬送する間にプレスのスライドが昇降する高さが
必要なためスライドのストロークの3/8となることが
知られている。従って絞り深さに比してプレス機械が大
形となり、広い床面積と多くの経費とを必要とする欠点
があった。
Conventionally, the maximum drawing depth of a drawing die used in a press machine is 1/2 of the slide stroke of the press because in a press for single-shot processing, the drawing depth and the height to extract the drawn product from the mold are required. In addition, in a transfer press, the height required for the slide of the press to rise and fall while transporting the molded product extracted from the mold to the next process is known to be 3/8 of the stroke of the slide. It is being Therefore, the press machine is large in size compared to the drawing depth, which has the drawback of requiring a large floor area and a large amount of cost.

本発明の目的はこれらの欠点を除き、下型のパンチを昇
降自在としプレスのスライドの運動を利用してこれを押
し上げることにより、スライドのストロークを大きくす
ること−なく最大絞り深さを増大することができ、かつ
消費エネルギが少なく、同じ絞り加工が小形のプレスで
可能となり工場床面積と諸経費の節約ができるプレス機
械用の絞り型を提供することにある。
The purpose of the present invention is to eliminate these drawbacks and increase the maximum drawing depth without increasing the stroke of the slide by making the punch in the lower die freely move up and down and pushing it up using the movement of the slide of the press. To provide a drawing die for a press machine, which can reduce energy consumption, enable the same drawing process with a small press, and save factory floor space and miscellaneous expenses.

以下本発明の実施例について図面を参照して説明する。Embodiments of the present invention will be described below with reference to the drawings.

第1図において、絞り型の構造を示している0プレスの
スライド(1)には上型(2)が、プレスのボルスタ(
3)には下型(4)が取りつけられ、図の右手分はスラ
イド(I)が下死点(下降限)にある状態を、左半分は
スライド(1)が上死点(上昇限)近傍にある状態を示
している。上型(2)には絞り加工用の中心穴を有する
上型ダイス(5)が設けられ、上型ダイス(5)の中心
穴にはノックアウト(6)が昇降自在で下限が規制され
て適合している。ノックアウト(6)は下向に付勢され
常時は下限にありその下面は上型ダイス(5)の下面と
一致している。2下型(4)には上型ダイス(5)と対
向し、この中心穴と協働して絞り加工を行なうパンチ(
力が設けられている。パンチ(7)の下部は小径のピス
トン部と夕っており下型ダイセット(8)の油圧室(9
)に昇降自在に下限を規制されて適合している。下型ダ
イセット(8)の下面にはパンチ(力と同心にエアシリ
ンダ00)が設けられ、これに適合するピストン(11
)のピストンロッドが油圧室(9)の下面板を気密に昇
降自在に貫通しパンチ(7)と連結されている。パンチ
(7)の外周にはブランクホルダ02)が昇降自在に設
けられ、その上面の上限は、下限にあるパンチ(力の上
面と一致するように規制されている。ブランクホルダ(
12)の下面にはクッション(13)により上向に付勢
されたクッションピン(I4)の上端が当接しブランク
ホルダ(12)を上向に付勢している。クッションピン
(14)は下型ダイセット(8)により昇降自在に案内
されている。ブランクホルダ3− (12)の外周よシも外側で上型ダイス(5)と対向す
る位置には下型ダイセット(8)の複数の油圧室(15
1に夫々昇降自在に適合した油圧発生用ピストン(16
)が設けられている。油圧発生用ピストン(16)はそ
れと油圧室(151の底との間に設けたスプリングaD
によp上向に付勢され、上限においてその上端面は下限
にあるパンチ(力の上面と一致している。油圧室(9)
と夫々の油圧室(1ツとは通路Q8)によって連絡され
ている0バンチ(力の上面から側面下部に抜ける空気人
員が設けられ、絞り加工後の成形品(20)をパンチ(
力から抜き易くしている。油圧室(19のうち1個には
下型ダイセット(8)の側面に開口する給油穴eυが設
けられている。またエアシリンダ00)のシリンダ室に
は下型ダイセット(8)の側面に開口する給気穴(2湯
が設けられている。
In Figure 1, the slide (1) of the 0 press showing the drawing die structure has an upper die (2) and a press bolster (2).
The lower die (4) is attached to 3), and the right hand side of the figure shows the slide (I) at the bottom dead center (lower limit), and the left half shows the slide (1) at the top dead center (upper limit). It shows the state in the vicinity. The upper die (2) is provided with an upper die (5) having a center hole for drawing, and the knockout (6) is movable up and down in the center hole of the upper die (5), and its lower limit is regulated to fit. are doing. The knockout (6) is biased downward and is always at the lower limit, with its lower surface coinciding with the lower surface of the upper die (5). 2. The lower die (4) has a punch () that faces the upper die (5) and cooperates with this center hole to perform the drawing process.
power is provided. The lower part of the punch (7) is connected to the small diameter piston part and the hydraulic chamber (9) of the lower die set (8).
), the lower limit of which can be raised and lowered is regulated and conforms to the regulations. A punch (air cylinder 00 concentric with the force) is provided on the lower surface of the lower die set (8), and a piston (11
) passes through the bottom plate of the hydraulic chamber (9) in an airtight manner so as to be freely raised and lowered, and is connected to the punch (7). A blank holder 02) is provided on the outer periphery of the punch (7) so as to be able to rise and fall freely, and the upper limit of its upper surface is regulated to match the upper surface of the punch (force) at the lower limit.The blank holder (
The upper end of the cushion pin (I4), which is urged upward by the cushion (13), comes into contact with the lower surface of 12) and urges the blank holder (12) upward. The cushion pin (14) is guided by a lower die set (8) so as to be able to move up and down. The blank holder 3- (12) has a plurality of hydraulic chambers (15) of the lower die set (8) at a position facing the upper die (5) on the outer side.
Hydraulic pressure generating pistons (16
) is provided. The hydraulic pressure generating piston (16) is connected to a spring aD provided between it and the bottom of the hydraulic chamber (151).
The upper end surface of the punch at the upper limit coincides with the upper surface of the force at the lower limit.Hydraulic chamber (9)
The 0-bunch (an air member that escapes from the upper surface of the force to the lower side surface is provided) is connected by each hydraulic chamber (one is a passage Q8), and the formed product (20) after drawing is punched (
It makes it easy to remove from force. One of the hydraulic chambers (19) is provided with an oil supply hole eυ that opens on the side of the lower die set (8). Also, the cylinder chamber of the air cylinder 00 is provided with an oil supply hole eυ that opens on the side of the lower die set (8). There is an air supply hole that opens into the (2 hot water).

パンチ(力及び油圧発生用ピストン(16)には夫々油
圧5− 4− 室(9)及び(15)のエア抜穴(ハ)及び(24)が
設けられ、常時は閉止されている。
The punch (force and oil pressure generating piston (16)) is provided with air bleed holes (c) and (24) for the oil pressure chambers (9) and (15), respectively, which are normally closed.

給油穴(21)にはタンク(25)に向って閉となる逆
止弁(26)を介してタンク(25)から油が供給され
る0タンク(2ωの下部には油が上部にはエアが入って
いる。給気穴(22)にはタンク(2粉の上部からエア
が供給される0タンク(2つ上部には圧縮エア源(2η
から圧力調整弁(28)を介して一定圧力p Kgf/
cr71のエアが供給されている。
Oil is supplied to the oil supply hole (21) from the tank (25) via a check valve (26) that closes toward the tank (25). The air supply hole (22) has a tank (2 tanks (2 tanks) where air is supplied from the top of the
from the pressure regulating valve (28) to a constant pressure p Kgf/
CR71 air is supplied.

次に作用について述べる。タンク(2!51に圧縮エア
源(27)から圧力調整弁(28)で一定圧力p Kg
flcdl S 約2に4f/caのエアが供給される
と、給気穴(221を介してエアシリンダ00)に給気
され、ピストン01)は下向に付勢され゛Cパンチ(力
を下限まで引き下げる。一方タンク(2つの圧油は逆止
弁(イ)、給油穴(21)を介して油圧室(15)に、
更に通路(18)を介して油圧室(9)に満たさ6一 れる。初回はエア抜穴(23L (24)をあけてエア
を抜き閉止する。ここでパンチ(力のピストン部の受圧
面積二A−o、油圧発生用ピストン06)の受圧面積=
AI、個数二N1エアシリンダ00)のピストン(11
)の受圧面積二A2とし、A2をAoより若干大として
パンチ(7)を下限に保持させる。最も一般的に使用で
きる場合として、Ao == A+ X N 、すなわ
ち上型ダイス(5)が油圧発生用ピストン06)を押し
下げる高さと1パンチ(力が発生した油圧で押し上げら
れる高さとを等しくする。AoとA+xNとの面積比を
変えればこれらの高さの関係を変えることができる。
Next, we will discuss the effect. A constant pressure p Kg is supplied to the tank (2!51) from the compressed air source (27) using the pressure regulating valve (28).
When 4f/ca of air is supplied to flcdl S approximately 2, the air is supplied to the air supply hole (air cylinder 00 through 221), and the piston 01) is urged downward, and the C punch (force is set to the lower limit) On the other hand, the tank (two pressure oils enter the hydraulic chamber (15) via the check valve (a) and the oil supply hole (21),
Furthermore, the hydraulic chamber (9) is filled via the passage (18). For the first time, open the air vent hole (23L (24)) to release the air and close it.Here, the pressure receiving area of the punch (pressure receiving area of the force piston part 2A-o, hydraulic pressure generating piston 06) =
AI, number 2 N1 air cylinder 00) piston (11
), and A2 is set to be slightly larger than Ao, and the punch (7) is held at the lower limit. The most commonly used case is Ao == A+ .By changing the area ratio of Ao and A+xN, the relationship between these heights can be changed.

またAo X p中A2Xp−製品ストリップ力+αに
設定しておけば、絞り加工後成形品(20)をパンチ(
7)から抜き易くすることができる。製品ストリップカ
ニクッション力である。
In addition, if Ao X p is set to A2
7) It can be made easier to remove. The product strip crab cushion force.

第1図左半分に示す状態でパンチ(力、ブランクホルダ
(12)上に素材板が搬入され、スライド(1)が下降
すると、旧型ダイス(5)とブランクホルダ(12)と
で素材板を挾み、クッション03)の付勢力によるしわ
押え力が加わる。同時にパンチ(力によりAoXpの絞
り力が加わり、更に上型ダイス(5)が油圧発生用ピス
トン(16)を押し下げると、圧油は逆止弁(26)に
よりタンク(25)に逆流しないので油圧室(15)の
圧油は圧力が上昇して油圧室(9)に流入しピストン0
1)の付勢力に打ち勝ってパンチ(力を押し上げ絞り力
は増大される。スライド(1)が下死点に達するまで下
降し第1図右手分に示す状態に至る。
In the state shown in the left half of Figure 1, the blank holder (12) is loaded with the blank holder, and when the slide (1) descends, the old die (5) and blank holder (12) hold the blank holder. A wrinkle pressing force is applied due to the biasing force of the cushion 03). At the same time, the squeezing force of AoXp is applied due to the punch (force), and when the upper die (5) further pushes down the hydraulic pressure generating piston (16), the pressure oil does not flow back into the tank (25) due to the check valve (26), so the pressure The pressure of the pressure oil in the chamber (15) increases and flows into the hydraulic chamber (9), where the piston 0
1), the punch (force) is pushed up and the squeezing force is increased. The slide (1) descends until it reaches the bottom dead center and reaches the state shown in the right hand part of FIG. 1.

上型ダイス(5)とパンチ(力とが相対運動を行なうの
で上型ダイス(5)の下降する高さは絞り深さの1/2
ですむ。従って最大絞り深さは単発加工のプレスの場合
スライド(1)のストロークの2/3と々す、トランス
ファプレスの場合スライド(1)のストロー−’/ − りの1/2となり、従来に比し大きく増大できる○ただ
しトランスファプレスの場合成形品の搬送はクランク角
300°から60°までに行彦われるものとする。以後
スライド(1)が上昇するとパンチ(力はピストン(f
l)の付勢力で下降し、油圧室(9)の圧油は油圧室(
15)に流入し、油圧発生用ピストンa6)は圧油の付
勢力とスプリングOηの付勢力とによシ上限まで上昇す
る。このときブランクホルダ(121はクッション(1
3)の付勢力をクッションピン(14)を介して受けて
上昇し、成形品(20)をパンチ(力から抜き出す。
Since the upper die (5) and the punch (force) move relative to each other, the height at which the upper die (5) descends is 1/2 of the drawing depth.
That's fine. Therefore, the maximum drawing depth is 2/3 of the stroke of slide (1) in the case of a single-shot press, and 1/2 of the stroke of slide (1) in the case of a transfer press, compared to conventional methods. However, in the case of a transfer press, the molded product must be transported at a crank angle of 300° to 60°. After that, when the slide (1) rises, the punch (force is generated by the piston (f)
The pressure oil in the hydraulic chamber (9) is lowered by the urging force of the hydraulic chamber (9).
15), and the hydraulic pressure generating piston a6) rises to the upper limit due to the urging force of the pressure oil and the urging force of the spring Oη. At this time, the blank holder (121 is the cushion (1
3) through the cushion pin (14) and rises, and the molded product (20) is punched (extracted from the force).

ブランクホルダ02上から成形品(20)は搬出される
The molded product (20) is carried out from above the blank holder 02.

油が洩れ不足したときはタンクeツから自動的に補充さ
れる。
When oil leaks and becomes insufficient, it is automatically replenished from the tank.

以上の説明から明らかなように本発明によれば、(1)
最大絞り深さが増大できる。 (2)絞り加工中のスラ
イドの下降する高さが絞り深さの1/2で9− 8− すみ、下死点近傍で行なわれるのでプレスの消費エネル
ギが従来の約1/2と小さくなる。 (3)クッション
及ヒクッションピンのストロークが小さくてよい。 (
4)搬送などのタイミングに余裕かえられクランプスト
ロークを小さくできる。 (5)同じ絞り深さであれば
小形のプレスが使用でき床面積及び諸経費が節約できる
。など実用上の効果と利点は大きい。
As is clear from the above description, according to the present invention, (1)
The maximum drawing depth can be increased. (2) The descending height of the slide during drawing is 1/2 of the drawing depth, and since the process is performed near the bottom dead center, the energy consumption of the press is reduced to about 1/2 of that of conventional presses. . (3) The strokes of the cushion and the cushion pin may be small. (
4) The clamp stroke can be made smaller by adjusting the timing of transportation, etc. (5) If the drawing depth is the same, a smaller press can be used, saving floor space and overhead costs. The practical effects and benefits are great.

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

第1図は実施例の縦断面図と所要の回路図である0 1はスライド、2は上型、3はボルスタ、4は下型、5
は上型ダイス、6はノックアウト、7はパンチ、8は下
型ダイセット、9は油圧室、10はエアシリンダ、11
はピストン、12はブランクホルダ、13はクッション
、14はクッションピー1〇− ン、15は油圧室、16は油圧発生用ピストン、17は
スプリング、18は通路、19は空気穴、20は成形品
、21は給油穴、22は給気穴、23はエア抜穴、24
はエア抜穴、25はタンク、26は逆止弁、27は圧縮
エア源、28は圧力調整弁である。 特許出願人 アイダエンジニアリング株式会社代表者 
会 1)啓之助 11−
Figure 1 is a vertical cross-sectional view of the embodiment and a necessary circuit diagram. 0 1 is a slide, 2 is an upper mold, 3 is a bolster, 4 is a lower mold, 5
is an upper die, 6 is a knockout, 7 is a punch, 8 is a lower die set, 9 is a hydraulic chamber, 10 is an air cylinder, 11
is a piston, 12 is a blank holder, 13 is a cushion, 14 is a cushion piston, 15 is a hydraulic chamber, 16 is a piston for generating hydraulic pressure, 17 is a spring, 18 is a passage, 19 is an air hole, and 20 is a molded product. , 21 is an oil supply hole, 22 is an air supply hole, 23 is an air vent hole, 24
25 is a tank, 26 is a check valve, 27 is a compressed air source, and 28 is a pressure regulating valve. Patent applicant Representative of AIDA ENGINEERING Co., Ltd.
Meeting 1) Keinosuke 11-

Claims (1)

【特許請求の範囲】[Claims] 上型ダイスに対向させて下型に昇降自在に設けたパンチ
と、該パンチのピストン部の受圧面積に対して一定の割
合の総受圧面積を有し、プレスのスライドが一定高さま
で下降したとき上型に当接する位置で下型に配置された
油圧発生用ピストンと、該ピストンと前記パンチのピス
トン部が収容されている夫々の油圧室を連通ずる通路と
を具備したことを特徴とするプレス機械用の絞り型。
A punch is provided on the lower die facing the upper die and is movable up and down, and has a total pressure receiving area that is a certain ratio to the pressure receiving area of the piston part of the punch, and when the slide of the press descends to a certain height. A press characterized by comprising: a hydraulic pressure generating piston disposed on the lower mold at a position in contact with the upper mold; and a passage communicating the piston with each hydraulic chamber in which the piston portion of the punch is accommodated. Drawing die for machines.
JP58202285A 1983-10-28 1983-10-28 Drawing die for press machine Pending JPS6096331A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58202285A JPS6096331A (en) 1983-10-28 1983-10-28 Drawing die for press machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58202285A JPS6096331A (en) 1983-10-28 1983-10-28 Drawing die for press machine

Publications (1)

Publication Number Publication Date
JPS6096331A true JPS6096331A (en) 1985-05-29

Family

ID=16455000

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58202285A Pending JPS6096331A (en) 1983-10-28 1983-10-28 Drawing die for press machine

Country Status (1)

Country Link
JP (1) JPS6096331A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1074950C (en) * 1994-09-30 2001-11-21 J·迪芬巴赫机器制造有限公司 Hydraulic stretching apparatus of pressing machine for stretching thin plate formed products
CN1077465C (en) * 1994-09-30 2002-01-09 J·迪芬巴赫机器制造有限公司 Hydraulic deep dawing equipment of a pressing machine for mfg. streched thin plate former

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1074950C (en) * 1994-09-30 2001-11-21 J·迪芬巴赫机器制造有限公司 Hydraulic stretching apparatus of pressing machine for stretching thin plate formed products
CN1077465C (en) * 1994-09-30 2002-01-09 J·迪芬巴赫机器制造有限公司 Hydraulic deep dawing equipment of a pressing machine for mfg. streched thin plate former

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