JPH06269868A - Pressure controlled metallic die - Google Patents
Pressure controlled metallic dieInfo
- Publication number
- JPH06269868A JPH06269868A JP5064266A JP6426693A JPH06269868A JP H06269868 A JPH06269868 A JP H06269868A JP 5064266 A JP5064266 A JP 5064266A JP 6426693 A JP6426693 A JP 6426693A JP H06269868 A JPH06269868 A JP H06269868A
- Authority
- JP
- Japan
- Prior art keywords
- die
- mold
- upper die
- air
- air supply
- 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
Landscapes
- Mounting, Exchange, And Manufacturing Of Dies (AREA)
- Presses And Accessory Devices Thereof (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、プレス金型の加工面に
切粉等の塵芥が巻き込まれて付着するのを防止するよう
にした金型に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a die for preventing dust such as chips from being caught and attached to a working surface of a press die.
【０００２】[0002]
【従来の技術】従来、上型と下型によってプレス加工す
るようなプレス金型において、例えば上型が降下して成
形を完了するまでの主として後半の段階では金型と加工
材の間の空間内部の圧力が高まり、逆に上型が下死点か
ら上昇する初期の段階では金型と加工材との間の空間に
負圧領域が発生する。そして、上型が降下する場合、例
えば図２（イ）に示すように、金型５１と加工材Ｗの間
の圧力の高まったエアは型合せ面ｓの隙間から外部空間
に逃げ出しているが、この隙間は狭く上型が降下する時
の抵抗力となって大きな型締力を必要とするため、例え
ば実開昭５６―１４２８２０号のようにエア抜きパイプ
を設けたような金型が知られている。つまり、この金型
ではプレス型の加工面から外部に貫通するエア抜きパイ
プを鋳込んで金型の内部空間と外部空間を連通させ、圧
力の高まった内部空間のエアを逃げやすくして型締力の
軽減を図っている。一方、上型が上昇する場合、図２
（ロ）に示すように、金型５１と加工材Ｗの間の負圧と
なった空間ｈ1、ｈ2のため金型５１周辺のエアが内部空
間ｈ1、ｈ2に向けて吸込まれている。そして、上記実開
昭５６―１４２８２０号の場合は前記エア抜きパイプが
エアの吸込みにも作用し、金型周辺のエアの一部はこの
エア抜きパイプからも内部空間に向けて流入するがこの
流入量は少なく、殆どのエアは金型の合せ面から流入す
る。2. Description of the Related Art Conventionally, in a press die which is pressed by an upper die and a lower die, for example, a space between the die and the work material is mainly used in the latter half of the stage until the upper die descends to complete the forming. In the initial stage where the internal pressure increases and conversely the upper die rises from the bottom dead center, a negative pressure region is generated in the space between the die and the processed material. Then, when the upper die descends, for example, as shown in FIG. 2A, the air with increased pressure between the die 51 and the processed material W escapes from the gap between the die mating surfaces s to the external space. Since this gap is narrow and it becomes a resistance force when the upper die descends and a large mold clamping force is required, for example, a die having an air bleeding pipe as in Japanese Utility Model Laid-Open No. 56-142820 is known. Has been. In other words, in this mold, an air bleeding pipe that penetrates from the processing surface of the press mold to the outside is cast to connect the internal space of the mold with the external space, making it easier for air in the internal space with increased pressure to escape and to close the mold. I am trying to reduce my power. On the other hand, when the upper die is raised,
As shown in (b), the air around the mold 51 is sucked toward the internal spaces h1 and h2 due to the negative pressure spaces h1 and h2 between the mold 51 and the processed material W. In the case of Japanese Utility Model Laid-Open No. 56-142820, the air bleeding pipe also acts on the suction of air, and a part of the air around the die flows into the internal space through the air bleeding pipe. The amount of inflow is small, and most of the air flows in from the mating surface of the mold.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、図２
（ロ）に示すように、上型の上昇に伴って金型５１周辺
のエアが吸込まれると、例えばこのプレス金型がトリム
せん断加工用、或いは曲げ加工用等であればせん断部、
曲げ部等で生じる切粉とか、又は、金型５１周辺に存在
する塵芥等が一緒に巻き込まれて金型５１の加工面５１
ａに付着するという問題があった。そして、このように
加工面に切粉等が付着したまま次の加工材Ｗを加工する
と、加工材Ｗの表面にデフォームが発生するといった不
具合があった。又、前記実開昭５６―１４２８２０号の
場合も、金型周辺の塵芥等を巻き込む可能性については
同様の問題があった。However, as shown in FIG.
As shown in (b), when the air around the mold 51 is sucked in as the upper mold rises, for example, if this press mold is for trim shearing or bending, the shearing part,
The cutting surface 51 of the mold 51 is formed by cutting chips generated at a bent portion or the like, or dust and the like existing around the mold 51.
There was a problem that it adhered to a. Then, when the next processed material W is processed with the chips and the like adhering to the processed surface as described above, there is a problem that the surface of the processed material W is deformed. Also, in the case of Japanese Utility Model Laid-Open No. 56-142820, there is a similar problem with regard to the possibility that dust and the like around the die may be involved.
【０００４】[0004]
【課題を解決するための手段】かかる課題を解決するた
め、本発明はプレス金型の上型と下型の少なくともいず
れか一方の加工面にエア給気孔を開口させ、プレスを完
了した上型の下死点から上型が上昇して型開きする所定
期間内に前記エア給気孔から圧縮エアを送り込んで、金
型と加工材の間に生じる負圧領域を大気圧と同等若しく
はそれ以上にするようにした。In order to solve the above-mentioned problems, the present invention has an upper die for which pressing has been completed by opening an air supply hole in at least one of the upper and lower working surfaces of a press die. Compressed air is fed from the air supply hole within a predetermined period during which the upper mold rises from the bottom dead center and the mold is opened, and the negative pressure region generated between the mold and the processed material becomes equal to or higher than the atmospheric pressure. I decided to do it.
【０００５】[0005]
【作用】上型が下死点から上昇を始め内部空間に負圧が
発生する時にエア給気孔から積極的に圧縮エアを送り込
んで内部空間を大気圧と同等若しくはそれ以上にするこ
とで金型周辺のエアが金型内に吸込まれず、切粉、塵芥
等の巻き込みを防止出来る。[Operation] When the upper die starts to rise from the bottom dead center and a negative pressure is generated in the inner space, the compressed air is positively fed from the air supply hole to make the inner space equal to or higher than the atmospheric pressure, and thus the die. The surrounding air is not sucked into the mold, and it is possible to prevent the inclusion of chips, dust, etc.
【０００６】[0006]
【実施例】本発明の調圧金型の実施例について添付した
図面に基づき説明する。図１は本発明の調圧金型とその
作用を示す作用図である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the pressure adjusting mold of the present invention will be described with reference to the accompanying drawings. FIG. 1 is an action diagram showing the pressure regulation die of the present invention and its action.
【０００７】図１に示すように、本発明の調圧金型１
は、下型２に対して昇降自在な上型３と、下型２の周囲
に設けられたブランクホルダ４を備え、このブランクホ
ルダ４はクッション部材５によって上下動自在に支えら
れている。As shown in FIG. 1, the pressure regulation mold 1 of the present invention.
Is provided with an upper die 3 which can be moved up and down with respect to the lower die 2, and a blank holder 4 provided around the lower die 2, and the blank holder 4 is supported by a cushion member 5 so as to be vertically movable.
【０００８】そしてこのブランクホルダ４の上面には、
例えば加工材Ｗに対する板押え圧を増加させるためのビ
ード溝６が設けられ、このビード溝６に対応する上型２
下面には帯状のビード７が設けられている。On the upper surface of the blank holder 4,
For example, a bead groove 6 for increasing the plate pressing pressure with respect to the processed material W is provided, and the upper mold 2 corresponding to this bead groove 6 is provided.
A strip-shaped bead 7 is provided on the lower surface.
【０００９】ところで、この下型２と上型３には夫々エ
ア給気孔８、９が設けられ、このエア給気孔８、９の一
端側は各型２、３の加工面２ａ、３ａに向けて開口する
とともに、他端側は切換弁１２、１３を介して給気路１
０、１１と大気開放路１４、１５に接続している。By the way, the lower mold 2 and the upper mold 3 are provided with air supply holes 8 and 9, respectively, and one ends of the air supply holes 8 and 9 are directed toward the processing surfaces 2a and 3a of the molds 2 and 3, respectively. And the other end is connected to the air supply passage 1 via the switching valves 12 and 13.
0 and 11 are connected to the atmosphere open paths 14 and 15.
【００１０】そして、各給気路１０、１１の上流側には
不図示のエア供給源を設け、圧縮エアを供給出来るよう
にするとともに、大気開放路１４、１５の上流側は大気
に開放している。又、前記切換弁１２、１３は、この給
気路１０、１１と大気開放路１４、１５の切換を行う。An air supply source (not shown) is provided on the upstream side of each air supply passage 10 and 11 so that compressed air can be supplied, and the upstream side of the atmosphere open passages 14 and 15 is opened to the atmosphere. ing. The switching valves 12 and 13 switch between the air supply passages 10 and 11 and the atmosphere release passages 14 and 15.
【００１１】尚、各金型２、３の加工面２ａ、３ａに向
けて開口するエア給気孔８、９の位置は成形に関与しな
い箇所であることが望ましく、例えば加工材Ｗと加工面
２ａ、３ａが接触しないような箇所が選定されている。The positions of the air supply holes 8 and 9 opening toward the machined surfaces 2a and 3a of the respective dies 2 and 3 are preferably locations not involved in molding. For example, the machined material W and the machined surface 2a. The location where 3a does not contact is selected.
【００１２】又、エア給気孔８、９は実施例のように両
方の金型２、３に設けるのではなく、必要に合せていず
れか一方側の金型２、３のみに設けるようにしても良
い。Further, the air supply holes 8 and 9 are not provided in both molds 2 and 3 as in the embodiment, but are provided only in one of the molds 2 and 3 according to need. Is also good.
【００１３】次に、このような金型１における圧縮エア
の給気タイミングについて説明する。Next, the timing of supplying compressed air in the mold 1 will be described.
【００１４】図１（イ）に示すように、上型３が上昇し
て型開き状態にあるブランクホルダ４上に加工材Ｗを載
置し、加工準備を完了する。この際、切換弁１２、１３
は大気開放路１４、１５側を連通せしめる位置に選択さ
れている。As shown in FIG. 1 (a), the upper die 3 is lifted and the work material W is placed on the blank holder 4 in the mold open state, and the preparation for working is completed. At this time, the switching valves 12, 13
Is selected at a position where the atmosphere open paths 14 and 15 can communicate with each other.
【００１５】そして、同図（ロ）に示すように、上型３
を降下させ上型３とブランクホルダ４とで加工材Ｗを押
え付け始めると、上型３と加工材Ｗとの間に空間ｈ1が
形成され、又、下型２と加工材Ｗとの間に空間ｈ2が形
成される。Then, as shown in FIG.
When the work piece W is lowered by lowering the work piece W with the upper die 3 and the blank holder 4, a space h1 is formed between the upper die 3 and the work piece W, and between the lower die 2 and the work piece W. A space h2 is formed at.
【００１６】そして、上型３の降下に連れてブランクホ
ルダ４も押されて降下し始め、各空間ｈ1、ｈ2内で内圧
が高まったエアは、エア給気孔８、９から大気開放路１
４、１５を通って外部に逃げ出すとともに、一部のエア
は周囲の隙間からも逃げ出す。As the upper mold 3 descends, the blank holder 4 is also pushed and begins to descend, and the air whose internal pressure has increased in each of the spaces h1 and h2 is discharged from the air supply holes 8 and 9 to the atmosphere opening passage 1.
While escaping to the outside through Nos. 4 and 15, some of the air also escapes from the surrounding gaps.
【００１７】図１（ハ）の状態で上型３が下死点まで降
下すると成形が完了し、今度は上型３が上昇を始めて元
の状態に復元しようとする。When the upper die 3 descends to the bottom dead center in the state of FIG. 1 (c), the molding is completed, and this time the upper die 3 starts to rise and tries to restore the original state.
【００１８】そこで、本案ではこの上型３が下死点に達
した時点から両切換弁１２、１３を切換えて給気路１
０、１１を選択し、再び形成される空間ｈ2、ｈ1内にエ
ア給気孔８、９から圧縮エアを送り込む。すなわち、か
かる空間ｈ2、ｈ1は通常であれば負圧領域であり、圧縮
エアを送り込むことで大気圧と同等若しくはそれ以上の
圧力に変える。Therefore, in the present invention, the switching valves 12 and 13 are switched from the time when the upper mold 3 reaches the bottom dead center to switch the air supply passage 1.
0 and 11 are selected, and compressed air is sent into the re-formed spaces h2 and h1 from the air supply holes 8 and 9. That is, the spaces h2 and h1 are normally negative pressure regions, and the pressure is changed to a pressure equal to or higher than the atmospheric pressure by sending compressed air.
【００１９】又、この圧縮エアの送り込みは、例えば実
施例では上型３の下死点からブランクホルダ４が元の位
置に復帰する復元完了時点まで継続し、切換弁１２、１
３の作動は、例えば上型３及びブランクホルダ４の作動
を検知する不図示のセンサによって自動的に制御する。Further, in this embodiment, the feeding of the compressed air is continued from the bottom dead center of the upper die 3 to the completion of the restoration in which the blank holder 4 returns to the original position, and the switching valves 12, 1 are used.
The operation of 3 is automatically controlled by, for example, a sensor (not shown) that detects the operation of the upper die 3 and the blank holder 4.
【００２０】こうして、上型３を上昇させて型開きする
間、空間ｈ1、ｈ2の負圧領域を大気圧と同等若しくはそ
れ以上の圧力に変えることで、金型１周辺のエアが吸込
まれることがなく、切粉、塵芥等を巻き込まない。In this way, the air around the mold 1 is sucked in by changing the negative pressure region of the spaces h1 and h2 to a pressure equal to or higher than the atmospheric pressure while the upper mold 3 is raised and the mold is opened. And does not involve chips, dust, etc.
【００２１】尚、圧縮エアの給気の終了時点は空間ｈ
1、ｈ2が外部と連通するようになるまで継続するのが好
ましく、金型、加工材の形態等によって必ずしも実施例
のようにブランクホルダ４が復元した位置に限られるも
のではない。The space h is set at the end of the compressed air supply.
It is preferable to continue until 1 and h2 communicate with the outside, and it is not necessarily limited to the restored position of the blank holder 4 as in the embodiment depending on the form of the mold, the processing material and the like.
【００２２】[0022]
【発明の効果】以上のように、本発明の調圧金型はプレ
スを完了した上型の下死点から上型が上昇して型開きす
る所定期間内に、金型に設けたエア給気孔から圧縮エア
を送り込んで金型内部に生じる負圧領域を大気圧と同等
若しくはそれ以上の圧力にするようにしたため、例えば
せん断プレス、曲げプレス等のような場合でも切粉を巻
き込むことがなく、又、周辺の塵芥等を巻き込む虞れも
ない。従って、金型の加工面を清浄に保つことが出来、
加工面に対するデフォーム等の不具合を排除出来る。As described above, the pressure regulation die of the present invention is provided with the air supply provided in the die within a predetermined period during which the upper die is lifted from the bottom dead center of the upper die which has been pressed and the upper die is opened. Compressed air is sent from the pores to make the negative pressure region inside the mold equal to or higher than the atmospheric pressure, so there is no need to entrap cutting chips even in cases such as shearing and bending presses. In addition, there is no possibility that surrounding dust will be caught. Therefore, the processed surface of the mold can be kept clean,
It is possible to eliminate defects such as deformation on the machined surface.
【図１】本発明の調圧金型とその作用図FIG. 1 is a pressure regulation mold of the present invention and its operation diagram.
【図２】従来の金型の作用図[Fig. 2] Action diagram of a conventional mold
１ 調圧金型 ２ 下型 ２ａ 加工面 ３ 上型 ３ａ 加工面 ８、９ エア給気孔 １２、１３ 切換弁 ｈ1、ｈ2 空間 Ｗ 加工材 1 Pressure regulating die 2 Lower die 2a Machining surface 3 Upper die 3a Machining surface 8, 9 Air supply hole 12, 13 Switching valve h1, h2 Space W Machining material
───────────────────────────────────────────────────── フロントページの続き (72)発明者 南波 崇興 埼玉県狭山市新狭山１丁目10番地１ ホン ダエンジニアリング株式会社内 (72)発明者 橋本 泰雄 埼玉県狭山市新狭山１丁目10番地１ ホン ダエンジニアリング株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Takako Nanba 1-10-1 Shin-Sayama, Sayama-shi, Saitama Prefecture Honda Engineering Co., Ltd. (72) Inventor Yasuo Hashimoto 1-10-1 Shin-Sayama, Sayama-shi, Saitama Prefecture Within Honda Engineering Co., Ltd.
Claims (1)
ずれか一方の加工面にエア給気孔を開口させ、プレスを
完了した上型の下死点から上型が上昇して型開きする所
定期間内に前記エア給気孔から圧縮エアを送り込み、金
型と加工材の間に生じる負圧領域を大気圧と同等若しく
はそれ以上にするようにしたことを特徴とする調圧金
型。1. An air supply hole is opened in at least one of the upper and lower working surfaces of a press die, and the upper die rises from the bottom dead center of the upper die for which the pressing is completed and the die opens. Compressed air is sent from the air supply hole within a predetermined period so that the negative pressure region generated between the mold and the processed material is equal to or higher than the atmospheric pressure, which is a pressure regulation mold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5064266A JPH06269868A (en) | 1993-03-23 | 1993-03-23 | Pressure controlled metallic die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5064266A JPH06269868A (en) | 1993-03-23 | 1993-03-23 | Pressure controlled metallic die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06269868A true JPH06269868A (en) | 1994-09-27 |
Family
ID=13253238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5064266A Pending JPH06269868A (en) | 1993-03-23 | 1993-03-23 | Pressure controlled metallic die |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06269868A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100435764B1 (en) * | 2002-05-21 | 2004-06-10 | 현대자동차주식회사 | jig of body panel for vehicle |
| KR100435653B1 (en) * | 2001-06-15 | 2004-06-12 | 현대자동차주식회사 | Double action press |
| KR101035796B1 (en) * | 2008-11-27 | 2011-05-20 | 현대제철 주식회사 | Press mold device and manufacturing method of press hardening member |
| CN103170538A (en) * | 2013-03-22 | 2013-06-26 | 奇瑞汽车股份有限公司 | Die structure capable of keeping cavity clean |
| CN111804797A (en) * | 2020-09-15 | 2020-10-23 | 天津天锻航空科技有限公司 | Die for double-acting stamping composite liquid filling forming and forming process |
-
1993
- 1993-03-23 JP JP5064266A patent/JPH06269868A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100435653B1 (en) * | 2001-06-15 | 2004-06-12 | 현대자동차주식회사 | Double action press |
| KR100435764B1 (en) * | 2002-05-21 | 2004-06-10 | 현대자동차주식회사 | jig of body panel for vehicle |
| KR101035796B1 (en) * | 2008-11-27 | 2011-05-20 | 현대제철 주식회사 | Press mold device and manufacturing method of press hardening member |
| CN103170538A (en) * | 2013-03-22 | 2013-06-26 | 奇瑞汽车股份有限公司 | Die structure capable of keeping cavity clean |
| CN111804797A (en) * | 2020-09-15 | 2020-10-23 | 天津天锻航空科技有限公司 | Die for double-acting stamping composite liquid filling forming and forming process |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH06269868A (en) | Pressure controlled metallic die | |
| JPH0732057A (en) | Pressing apparatus | |
| US4006655A (en) | Device for protecting tools and workpieces from damage on a hydraulically or pneumatically operated stamping press | |
| JPH0371932A (en) | Device for adjusting blank holding pressure for press die | |
| JP2005021945A (en) | Metallic mold for press-forming and method for producing panel using it | |
| KR100468260B1 (en) | Metallic patterns of a forming press for pressing of multi-panel | |
| JP3468818B2 (en) | Trim type | |
| KR100401618B1 (en) | Punch press | |
| JPH08215770A (en) | Press forming method and device therefor | |
| JPH07155888A (en) | Local thickness increasing method by press working | |
| JP3608954B2 (en) | Booster cushion circuit | |
| CN113617930A (en) | Sheet metal stamping die | |
| JPH08174086A (en) | Press forming method for sheet metal | |
| JP4382915B2 (en) | Turret punch press hydraulic die lifting mechanism | |
| JPH0280148A (en) | Method and device for extrusion working | |
| JPH0371931A (en) | Drawing device | |
| JPH01266922A (en) | Metallic member for radiation or the like and its manufacture | |
| JP4369554B2 (en) | Mold equipment for vendors | |
| JP3638096B2 (en) | Press forming equipment | |
| CN207941861U (en) | Novel repair of one kind rushing sizing die | |
| JP3419269B2 (en) | Press mold | |
| JP2002079327A (en) | Press forming die and work inflow prevention method with use of press forming die | |
| JPS6350030Y2 (en) | ||
| JP3772964B2 (en) | Press machine | |
| JPS5844891Y2 (en) | press type equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20020610 |