JPS5865523A - Hydraulic drawing device - Google Patents

Hydraulic drawing device

Info

Publication number
JPS5865523A
JPS5865523A JP56163834A JP16383481A JPS5865523A JP S5865523 A JPS5865523 A JP S5865523A JP 56163834 A JP56163834 A JP 56163834A JP 16383481 A JP16383481 A JP 16383481A JP S5865523 A JPS5865523 A JP S5865523A
Authority
JP
Japan
Prior art keywords
liquid
punch
piston
blank material
cylinder
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
JP56163834A
Other languages
Japanese (ja)
Inventor
Nobuyoshi Maeda
前田　信良
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 JP56163834A priority Critical patent/JPS5865523A/en
Publication of JPS5865523A publication Critical patent/JPS5865523A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
    • B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
    • B21D26/021—Deforming sheet bodies
    • 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
    • B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
    • B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
    • 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
    • B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
    • B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
    • B21D26/021—Deforming sheet bodies
    • B21D26/029—Closing or sealing means

Landscapes

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

Abstract

PURPOSE:To realize desired drawing by precise forming using only a punch, by providing a hollow piston member on a cylinder member filled with working oil, which has been provided on a die, and opposing a punch member having a recessed shape corresponding to the formed item to said piston member. CONSTITUTION:A punch 1 is stopped at the top dead center of a slide of a press, a liquid is filled into a liquid chamber 13 of a cylinder 3 from a liquid feed port 9. At the time of a state that a liquid which has passed through a piston 5 flows out from a liquid discharge port 10, the feed of the liquid is stopped. Subsequently, when the punch is lowered, the punch 1 holds a blank material 11 firmly together with the piston 5, becomes oiltight by energizing a spring 6, and after that, compresses the spring 6, and further lowered. As a result, the liquid in the chamber 13 pushes up the blank material 11, makes it tightly adhere to a recessed part 1a of the punch 1, the blank material 11 is formed to obtain a product 12, and the punch 1 stops at the top dead center.

Description

【発明の詳細な説明】 本発明は液圧絞り装置に関するものである。[Detailed description of the invention] The present invention relates to a hydraulic throttling device.

従来、絞り成形を行なう金型では上型及び下型を精密に
製作しなければならないため多くの工数を必要としてい
た。Conventionally, a mold for drawing has required a large number of man-hours because the upper mold and lower mold must be precisely manufactured.

本発明の目的は、この欠点を除き、上型だけを精密に成
形しておけば容易に所望の絞り成形ができ、金型製作の
工数を節約できる液圧絞り装置を提供することにある。It is an object of the present invention to provide a hydraulic drawing device that eliminates this drawback and allows desired drawing to be easily performed by precisely forming only the upper mold, thereby saving man-hours for manufacturing the mold.

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、上型（１）はプレート（２）を介して
プレスのスライドに固定されている。上型（１）の下面
には製品０２＋の形に成形されためす型となる凹部（１
ａ）が設けられている。In FIG. 1, an upper mold (1) is fixed to a slide of a press via a plate (2). The lower surface of the upper mold (1) has a recess (1
a) is provided.

凹部（１ａ）の頂部には空気給排口（８）を介して外気
に通ずる通路が設けられている。容器状のシリンダ（３
）はプレート（４）を介してプレスのボルスタに固定さ
れている。シリンダ（３）には油密に適合する中空状の
ピストン（５）が昇降自在に設けられている。ピストン
（５）とシリンダ（３）の底との間には複数のスプリン
グ（６）が設けられ、ピストン（５）を上向きに付勢し
ている。シリンダ（３）の上部開口周辺にはリング（７
）がシリンダ（３）との間を油密に固定されて設けられ
ている。リング（力の内径はピストン（５）の外径より
も小さく、ビス−トン（５）を抜は止めしている。リン
グ（力の内径には上型（１）が下降したとき油密に適合
するようになっている。シリンダ（３）の内部は液体室
（１３）となっていて、その底から液体供給口（９）に
連絡している０液体供給口（９）には油又は液体を供給
した後閉止できる装置（図示せず）が連結される。液体
はピストン（５）の上面を超えると液体・　排出口（１
０）から排出される。A passage communicating with outside air via an air supply/exhaust port (8) is provided at the top of the recess (1a). Container-shaped cylinder (3
) is fixed to the press bolster via a plate (4). The cylinder (3) is provided with a hollow piston (5) that is oil-tight and movable up and down. A plurality of springs (6) are provided between the piston (5) and the bottom of the cylinder (3), urging the piston (5) upward. A ring (7) is placed around the upper opening of the cylinder (3).
) is provided between the cylinder (3) and the cylinder (3) in an oil-tight manner. The inner diameter of the ring (the inner diameter of the force is smaller than the outer diameter of the piston (5) and prevents the screw-ton (5) from being removed. The inside of the cylinder (3) is a liquid chamber (13), and the liquid supply port (9), which is connected from the bottom to the liquid supply port (9), is filled with oil or A device (not shown) that can be closed after supplying the liquid is connected.When the liquid exceeds the upper surface of the piston (5), the liquid discharge port (1
0).

次に作用について述べる。第１図及び第２図において、
上型（１）はプレスのスライドの上死点に停止している
。液体供給口（９）からシリンダ（３）の液体体排出口
００）から流出する状態となったとき、液体の供給を停
止する。ピストン（８）の上にブランク材０υを供給す
る。上型（１）を下降させる。上型（１）はピストン（
５）との間に強くブランク材（１１）を挾持し、スプリ
ング（６）の付勢力によって油密状態となった後、スプ
リング（６）を圧縮して上型（１）が更に下降する。液
体室（１３）内の液体は液体供給口（９）側が閉止され
ているので液圧によりブランク材（１１）を押し上げ、
上型（１）の凹部（１ａ）に密着させる。同時にピスト
ン（５）を押し上げ上型（Ｉ）との間にブランク材（１
１）を強く挾持させる。凹部（１ａ）内の空気は空気給
排口（８）から逃げる。その直後上型（１）は下死点に
達し、第２図に示す状態となる。液体室（１３）の体積
は上型（１）によりピストン（５）が押し下げられただ
け小さく々ると共に、そ０分ブランク材（１１）を押し
上げ、凹部（１ａ）内に密着させただけ大きくなり、は
ぼ平衝するようにプレスのスライドの下死点位置を調整
しておく。以上によりブランク材（１１）は成形されて
製品０２となる。第２図の状態から上型（１）は上昇し
て上死点に停止する。ピストン（５）は製品（１２１が
密着したま＼となるので上昇することができない。そこ
で液体供給口（９）から少量の液体を供給すると製品（
１のはピストン（５）から離れると共に、ピストン（５
）はスプリング（６）の付勢力で上昇し復旧する。少量
の余分の液体が液体排出口（１（Ｉｔから流出した後ブ
ランク材（１１）を供給し上述を繰り返えし作業を継続
する。Next, we will discuss the effect. In Figures 1 and 2,
The upper die (1) is stopped at the top dead center of the slide of the press. When the liquid comes to flow out from the liquid supply port (9) to the liquid discharge port 00 of the cylinder (3), the supply of liquid is stopped. A blank material of 0υ is supplied onto the piston (8). Lower the upper mold (1). The upper mold (1) is a piston (
After the blank material (11) is firmly held between the upper mold member 5) and an oil-tight state is achieved by the biasing force of the spring (6), the upper mold member (1) is further lowered by compressing the spring (6). Since the liquid in the liquid chamber (13) is closed on the liquid supply port (9) side, the blank material (11) is pushed up by the liquid pressure.
Bring it into close contact with the recess (1a) of the upper mold (1). At the same time, push up the piston (5) and place it between the blank material (1) and the upper die (I).
1) Hold firmly. Air within the recess (1a) escapes through the air supply/exhaust port (8). Immediately after that, the upper die (1) reaches the bottom dead center and is in the state shown in FIG. The volume of the liquid chamber (13) decreases as the piston (5) is pushed down by the upper die (1), and increases as the blank material (11) is pushed up and tightly fitted into the recess (1a). Adjust the bottom dead center position of the press slide so that it is even. As described above, the blank material (11) is molded into a product 02. The upper mold (1) rises from the state shown in FIG. 2 and stops at the top dead center. The piston (5) cannot rise because the product (121) remains in close contact with it. Therefore, when a small amount of liquid is supplied from the liquid supply port (9), the product (
1 separates from the piston (5) and moves away from the piston (5).
) rises and recovers due to the biasing force of the spring (6). After a small amount of excess liquid flows out from the liquid outlet (1), the blank material (11) is supplied and the above process is repeated to continue the operation.

以上の説明から明らかなように、本発明によれば、 （１）絞し深さに対し作業ストロークが小さくできる。As is clear from the above description, according to the present invention, (1) The working stroke can be made smaller than the drawing depth.

成形高さ７５顛に対し２’１ＭＩＮの作業ストロークで
良いという実績かえられた。We have achieved results in that a working stroke of 2'1 MIN is sufficient for a molding height of 75 mm.

（２）　　ピストンが液体の圧力で強く押され仮押えの
役目をするので加工途中の板厚の変化にも対応でき、従
来のようなりッションが不要である。(2) Since the piston is strongly pressed by the pressure of the liquid and acts as a temporary hold, it can respond to changes in plate thickness during processing, and there is no need for conventional cushioning.

（３）成形品の板厚が違うものでも形が同じであれば加
工できる。(3) Molded products with different thicknesses can be processed as long as they have the same shape.

（４）液体室の体積を一定に保ち成形が進むので、液体
の流れが殆んどなく、流れによる液体の温度上昇による
エネルギーの無駄な消費がない。(4) Since the volume of the liquid chamber is kept constant and molding proceeds, there is almost no flow of liquid, and there is no wasted energy consumption due to temperature rise of the liquid due to flow.

（５）液圧による成形作業のため作業音が小さい（６）
作業ストロークが小さいことから成形が下死点゛付近で
行なわれるので、機械プレスの加工速度の小さい部分が
活用できる。(5) The molding process uses hydraulic pressure, so the working noise is low (6)
Since the working stroke is small, forming is performed near the bottom dead center, so the low processing speed of the mechanical press can be utilized.

（力　おす型が不要のため金型製作が容易で多種少量生
産に有利である。(Because a force-receiving mold is not required, mold production is easy and it is advantageous for high-mix, low-volume production.

など、実用上の効果と利点は頗る犬である０Practical effects and advantages such as

【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、 第２図は加工終了時の状態を示す縦断面図である０ １は上型、１ａは凹部、２はプレート、３はシリンダ、
４はプレート、５はピストン、６はスプリング、７はリ
ング、８は空気給排口、９は液体供給口、１０は液体排
出口、１１はブランク材、１２は製品、１３は液体室 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Fig. 1 is a longitudinal sectional view of the embodiment, and Fig. 2 is a longitudinal sectional view showing the state at the end of machining.
4 is a plate, 5 is a piston, 6 is a spring, 7 is a ring, 8 is an air supply/discharge port, 9 is a liquid supply port, 10 is a liquid discharge port, 11 is a blank material, 12 is a product, 13 is a liquid chamber . Patent Applicant AIDA Engineering Co., Ltd. Representative Meeting 1) Keinosuke

Claims (1)

【特許請求の範囲】[Claims] 下型に作動油を満たすシリンダ部材を設け、該シリンダ
部材に油密に適合するとともに昇降自在の中空状のピス
トン部材を設け、他方、成形品の形状をした凹部を有し
、かつ、前記ピストン上に供給された板材を前記ピスト
ン部材と挾持し、協働して成形する上型部材を該ピスト
ン部材と対向させて設けたことを特徴とする液圧絞り装
置０A cylinder member filled with hydraulic oil is provided in the lower mold, a hollow piston member is provided that fits oil-tightly into the cylinder member and is movable up and down, and has a recess in the shape of a molded product, and Hydraulic squeezing device 0 characterized in that an upper mold member is provided facing the piston member, which clamps the plate material supplied above and cooperates with the piston member to form the material.
JP56163834A 1981-10-14 1981-10-14 Hydraulic drawing device Pending JPS5865523A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56163834A JPS5865523A (en) 1981-10-14 1981-10-14 Hydraulic drawing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56163834A JPS5865523A (en) 1981-10-14 1981-10-14 Hydraulic drawing device

Publications (1)

Publication Number Publication Date
JPS5865523A true JPS5865523A (en) 1983-04-19

Family

ID=15781625

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56163834A Pending JPS5865523A (en) 1981-10-14 1981-10-14 Hydraulic drawing device

Country Status (1)

Country Link
JP (1) JPS5865523A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60231530A (en) * 1984-04-27 1985-11-18 Hiroshimaken Forming of small-sized hull
JPS6293034A (en) * 1985-10-19 1987-04-28 Kyoritsu Kikai Seisakusho:Kk Forming method for boat
EP0845312A1 (en) * 1996-12-02 1998-06-03 Forschungsgesellschaft Umformtechnik m.b.H. Flexibly applicable die for high pressure forming
KR20020093494A (en) * 2001-06-09 2002-12-16 현대자동차주식회사 Dual hydroforming system
CN101791652A (en) * 2010-03-03 2010-08-04 上海交通大学 High-pressure gradual change forming device for inside of sheet

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60231530A (en) * 1984-04-27 1985-11-18 Hiroshimaken Forming of small-sized hull
JPS6293034A (en) * 1985-10-19 1987-04-28 Kyoritsu Kikai Seisakusho:Kk Forming method for boat
EP0845312A1 (en) * 1996-12-02 1998-06-03 Forschungsgesellschaft Umformtechnik m.b.H. Flexibly applicable die for high pressure forming
KR20020093494A (en) * 2001-06-09 2002-12-16 현대자동차주식회사 Dual hydroforming system
CN101791652A (en) * 2010-03-03 2010-08-04 上海交通大学 High-pressure gradual change forming device for inside of sheet

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