JPS5956925A - Opposed liquid pressure forming method - Google Patents
Opposed liquid pressure forming methodInfo
- Publication number
- JPS5956925A JPS5956925A JP57169307A JP16930782A JPS5956925A JP S5956925 A JPS5956925 A JP S5956925A JP 57169307 A JP57169307 A JP 57169307A JP 16930782 A JP16930782 A JP 16930782A JP S5956925 A JPS5956925 A JP S5956925A
- Authority
- JP
- Japan
- Prior art keywords
- blank
- pressure
- dome
- liquid pressure
- opposed liquid
- 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
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
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/20—Deep-drawing
- B21D22/205—Hydro-mechanical deep-drawing
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】 本光明ｉｔ液圧成形法に関する。[Detailed description of the invention] The present invention relates to a hydroforming method.
従来の７＋＊圧成形法を第１図乃至第３図により説明す
る。The conventional 7+* pressure forming method will be explained with reference to FIGS. 1 to 3.
第１図において、まずドーム１内に対向液２（一般にけ
、油圧作動油が多い）を入れ、ブランク３をダイ４とブ
ランクホルダー５で加圧保持する。In FIG. 1, first, a counter fluid 2 (generally a hydraulic fluid) is poured into a dome 1, and a blank 3 is held under pressure by a die 4 and a blank holder 5.
次にポンチ６をドーム１内に進入させ、これによシ発生
す、る対向液圧Ｐ。によシ、ブランク３をポンチ６に巻
きつかせ、ポンチ６にそった形状を成形する。面図にお
いて７はリリーフ弁を示す。この場合の対向液圧Ｐ。を
ポンチストロークにしだがって、計測すると一般的に第
２図に示すようになる。Next, the punch 6 is advanced into the dome 1, which generates an opposing hydraulic pressure P. Finally, wrap the blank 3 around the punch 6 and form it into a shape along the punch 6. In the top view, 7 indicates a relief valve. Opposing hydraulic pressure P in this case. If measured according to the punch stroke, it will generally be as shown in Figure 2.
又、第１図に示すようにポンチ６がテーパ状で、成形途
中においてポンチ６とブランクホルダー５の間にすき間
が生じる場合には、対向液圧Ｐ。によシブランク３はポ
ンチ６側に通張シ出しをおこし、対向液圧Ｐ。が高い時
にはブランクが対向液圧Ｐ。によシ破断することがある
。このような場合には、ドームｌに接続したリリーフ弁
７により対向液圧Ｐｏを制御し、Ｐｏを第３図に示すよ
うにして、ブランクの破断を防ぐことにある。Further, as shown in FIG. 1, if the punch 6 is tapered and a gap occurs between the punch 6 and the blank holder 5 during forming, the opposing hydraulic pressure P. The displacement blank 3 is tensioned on the punch 6 side, and the opposing hydraulic pressure P is applied. When is high, the blank is the opposite hydraulic pressure P. It may break due to damage. In such a case, the counter hydraulic pressure Po is controlled by the relief valve 7 connected to the dome l, and Po is set as shown in FIG. 3 to prevent the blank from breaking.
この対向液圧成形法の特徴は、以上述べてきたように対
向液圧によりブランク３をポンチ６に巻きつかせて成形
することであシ、この対向液圧Ｐ。The feature of this opposed hydraulic forming method is that, as described above, the blank 3 is wound around the punch 6 and formed by the opposed hydraulic pressure, and this opposed hydraulic pressure P.
の制御・管理がポイントとなる。この従来方法の欠点は
、
（イ）成形のためには、対向液圧Ｐ。を早く高めること
が必要であるが、ポンチの形状・ドームの体積などによ
シ、対向液圧Ｐ。の立上が９時定数が変化するため成形
条件の設定が非常に田難でイうった。The key point is the control and management of The disadvantages of this conventional method are: (a) For molding, the opposing hydraulic pressure P is too low. Although it is necessary to quickly increase the opposing hydraulic pressure P, depending on the shape of the punch, volume of the dome, etc. It was very difficult to set the molding conditions because the time constant of the rise time changes.
（ロ）成形中の対向液圧Ｐ。はブランクホルダー５によ
るしわ押え力（ＢＨＦ）によシ、変化するが、このしわ
押え力は、一般には油圧シリンダーにより発生させてい
るため安定せず、成形中の対向液圧Ｐ。を管理すること
は固相トであった。(b) Opposing hydraulic pressure P during molding. varies depending on the wrinkle pressing force (BHF) by the blank holder 5, but this wrinkle pressing force is generally not stable because it is generated by a hydraulic cylinder, and the opposing hydraulic pressure P during molding. It was a solid phase to manage.
本発明は上記の欠点を改善するために提案されたもので
、成形中の対向液圧Ｐ。を容易に制御管理することを目
的とするものである。The present invention was proposed to improve the above-mentioned drawbacks, and the counter hydraulic pressure P during molding. The purpose is to easily control and manage.
次に本発明の実施例を添附１ン１面について説明する。Next, embodiments of the present invention will be described with reference to Appendix 1.
第４財］−一本発明の第一実施例を示すもので、第１図
と同じ符号のものは同一のものを示す。なお図において
８は判定回路、Ｂは圧力変換器、Ｃはｒｌｉ磁’） ’
）−フ弁、Ｄは増圧ポンプを示す。Item 4]-1 This shows the first embodiment of the present invention, and the same reference numerals as in FIG. 1 indicate the same items. In the figure, 8 is a determination circuit, B is a pressure transducer, and C is an rli magnetic ') '
)-f valve, D indicates a pressure booster pump.
次に動作について説明すると、対向／ｉ、に圧Ｐ。の割
病ｊ−管理を容易にするため、
（イ）ドーム１と連結した圧力変換器Ｂにより成形中の
対向液圧Ｐ。を検出する。Next, to explain the operation, pressure P is applied to the opposite /i. (a) A pressure transducer B connected to the dome 1 controls the opposing hydraulic pressure P during molding. Detect.
（ロ）対向液圧Ｐ。の値を判定回路８にとり込む。(b) Opposing hydraulic pressure P. The value of is taken into the determination circuit 8.
（ハ）設定した対向液圧Ｐ。よりも検出した対向液圧Ｐ
ｏが高い鴫には゛１Ｌ磁リリーフ弁Ｃによシ幻向液圧Ｐ
。を−トける。(c) Set opposing hydraulic pressure P. Opposing hydraulic pressure P detected from
When o is high, the 1L magnetic relief valve C is used to reduce the phantom hydraulic pressure P.
. To put out.
に）対向液圧Ｐ。が低い時には増圧ポンプＤにより対向
液圧Ｐ。を晶くする。) Opposing hydraulic pressure P. When the pressure is low, the counter hydraulic pressure P is increased by the pressure booster pump D. to crystallize.
上記の動作によシ対向液圧Ｐ。が容易に’＋Ｉｉ’Ｊ
ｍｌｌ・管理できるものである。Due to the above operation, the opposing hydraulic pressure P. is easily '+Ii'J
ml・It is something that can be managed.
第５図は本発明の第二実施例を示すもので、図１中８は
判定回路、Ｅはしわ押え力検出器、Ｆは１に磁すＩＪ−
フ弁、Ｇはしわ押え用ポンプを示１′。FIG. 5 shows a second embodiment of the present invention. In FIG. 1, 8 is a determination circuit, E is a wrinkle pressing force detector, and F is an IJ-
1' indicates the wrinkle presser pump.
次に動作について説明すると、成形中のしわ押え力（Ｂ
ＨＦ）を安定させるため、
（イ）成形中のしわ押え力を、検出器Ｅ（たとえ何、ロ
ードセル）によシ検出する。Next, to explain the operation, the wrinkle pressing force (B
In order to stabilize the HF), (a) the wrinkle pressing force during molding is detected by a detector E (whatever, a load cell).
（ロ）成形中のしわ押え力を判定回路８にとり込む。(b) The wrinkle pressing force during molding is taken into the determination circuit 8.
ｐ９設定したしわ押え力より検出したしわ押え力が１′
ｒ、）い時にはｔｌｊ磁ＩＪ ＩＪ−フ弁Ｆにより油圧
を低くし、しわ押え力を低くする。p9 The wrinkle pressing force detected from the set wrinkle pressing force is 1'
r,) When the pressure is low, the oil pressure is lowered by the magnetic IJ IJ-F valve F, and the wrinkle pressing force is lowered.
に）又、低いｌモにｄしわ押えポンプＧにより油圧を市
くし、しわ押え力を高ぐする。2) In addition, the hydraulic pressure is reduced using the crease presser pump G to increase the crease presser force when the pressure is low.
ｆ二Ｍｅの動作により成形中のしわ押え力が安定する。The action of f2Me stabilizes the wrinkle pressing force during molding.
尚実施に当ってに］５、上記の交」向液圧のＩｔ！Ｉ御
父はしわ押え力の制御を単独に行ってもよいし、又は両
′２を併用してもよい。In addition, in implementation] 5. It! of the above-mentioned cross-hydraulic pressure! Father I may control the wrinkle pressing force alone, or may use both '2' together.
本発明し」紙上のようにドーム内にブランクを装Ｎ’ｔ
Ｌ、該ブランクをグイとブランクホルダーとにより保
持し、ブランクに対してポンチを押圧し、ドーム内の対
向液によりブランクを成形する対向７１り圧成形法にお
いて、少くとも前記の対向液の液圧及びブランクに対す
るしわ押え力のいずれかを、数（ＩＦ＋に変（１カし、
該数佃を予め設定された値と比リスし、その結果により
、前記の対向液圧、しわ押え力のいずれか一つを増加又
は減少せしめることによって、
（イ）成形中の対向液圧Ｐ。を容易に制御・管理するこ
とかできる。According to the present invention, a blank is installed inside the dome as shown in the paper.
L. In the opposed pressure forming method in which the blank is held by a goo and a blank holder, a punch is pressed against the blank, and the blank is formed by a counter liquid in a dome, at least the hydraulic pressure of the counter liquid as described above is applied. and the wrinkle pressing force against the blank, change it to a number (IF + (1),
By comparing the number of pistons with a preset value and increasing or decreasing either the opposing hydraulic pressure or the wrinkle pressing force according to the result, (a) the opposing hydraulic pressure P during molding. . can be easily controlled and managed.
（ｒｊ）従って成形条件の設定が容易であり、成形条件
を安定化せしめることができる。(rj) Therefore, it is easy to set the molding conditions, and the molding conditions can be stabilized.
（ハ）成形中のしわ押え力が安定する。(c) The wrinkle pressing force during molding becomes stable.
等の効果を有する。It has the following effects.
第１図は従来の対向液圧成形法、第２図及び第３図＆、
１動作説明図、第４図は本発明の対向液圧成形法、第５
図は本発明の他の実施例を示す。
１・・ドーム、２・・対向液、３・・・ブランク、４・
・ダイ、５・・ブランクホルダー、６・・ポンチ、７・
・リリーフ弁、８・・判定回路、Ｂ・・圧力変換器、Ｃ
・・ｒし磁リリーフ弁、Ｄ・・Ｊｓ４ｉ圧ボ２ダボ２グ
・しわ押え力検出器、Ｆ・・亀磁リリーフ弁
ｌ庁許出願人
第１図
６
第２図
第４図
第５図Figure 1 shows the conventional opposed hydraulic molding method, Figures 2 and 3 &
Fig. 1 is an explanatory diagram of the operation, Fig. 4 is the opposed hydraulic forming method of the present invention,
The figures show other embodiments of the invention. 1...Dome, 2...Counter liquid, 3...Blank, 4...
・Die, 5.. Blank holder, 6.. Punch, 7.
- Relief valve, 8... Judgment circuit, B... Pressure transducer, C
... r Magnetic relief valve, D... Js4i pressure button 2 dowel 2 g. wrinkle presser force detector, F... Tortoise magnetic relief valve l Office Applicant No. 1 Fig. 6 Fig. 2 Fig. 4 Fig. 5
Claims (1)
ンクホルダーとにょシ保持し、ブランクに対してポンチ
を押圧し、ドーム内の対向液にょシブランクを成形する
対向液圧成形法において、少くとも前記の対向液の液圧
及びブランクに対するしわ押え力のいずれかを、数値に
変換し、該取揃を予め設定された値と比軟し、その結果
により、前記の対向液圧、しわ押えカのいずれか一つを
増加又娃、減少せしめることを特徴とする対向液圧成形
法。In the opposed hydraulic forming method, in which a blank is mounted in a dome, the blank is held between a die and a blank holder, a punch is pressed against the blank, and the blank is formed using a counter fluid in the dome. Either the hydraulic pressure of the opposing liquid or the wrinkle pressing force against the blank is converted into a numerical value, and this arrangement is compared with a preset value, and based on the result, the above-mentioned opposing liquid pressure and wrinkle pressing force are calculated. A facing hydraulic forming method characterized by increasing, increasing, or decreasing any one of them.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57169307A JPS5956925A (en) | 1982-09-27 | 1982-09-27 | Opposed liquid pressure forming method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57169307A JPS5956925A (en) | 1982-09-27 | 1982-09-27 | Opposed liquid pressure forming method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5956925A true JPS5956925A (en) | 1984-04-02 |
Family
ID=15884100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57169307A Pending JPS5956925A (en) | 1982-09-27 | 1982-09-27 | Opposed liquid pressure forming method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5956925A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53128566A (en) * | 1977-04-05 | 1978-11-09 | Vyzk Ustav Tvarecich | Riquid pressure circuit of press machine for deep drawing |
| JPS5744423A (en) * | 1980-08-29 | 1982-03-12 | Amino Tekkosho:Kk | Opposed type hydraulic forming apparatus with single action press |
-
1982
- 1982-09-27 JP JP57169307A patent/JPS5956925A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53128566A (en) * | 1977-04-05 | 1978-11-09 | Vyzk Ustav Tvarecich | Riquid pressure circuit of press machine for deep drawing |
| JPS5744423A (en) * | 1980-08-29 | 1982-03-12 | Amino Tekkosho:Kk | Opposed type hydraulic forming apparatus with single action press |
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