JPH0195830A - Manufacture of simplified drawing die - Google Patents
Manufacture of simplified drawing dieInfo
- Publication number
- JPH0195830A JPH0195830A JP25125987A JP25125987A JPH0195830A JP H0195830 A JPH0195830 A JP H0195830A JP 25125987 A JP25125987 A JP 25125987A JP 25125987 A JP25125987 A JP 25125987A JP H0195830 A JPH0195830 A JP H0195830A
- Authority
- JP
- Japan
- Prior art keywords
- die
- punch
- wrinkle
- mold
- casting frame
- 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
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 20
- 230000037303 wrinkles Effects 0.000 claims abstract description 75
- 229920001971 elastomer Polymers 0.000 claims abstract description 22
- 239000000463 material Substances 0.000 claims abstract description 20
- 238000005266 casting Methods 0.000 claims abstract description 16
- 238000003825 pressing Methods 0.000 claims abstract description 13
- 238000004512 die casting Methods 0.000 claims abstract description 9
- 239000011159 matrix material Substances 0.000 claims description 32
- 238000000034 method Methods 0.000 claims description 31
- 238000004080 punching Methods 0.000 claims description 2
- 238000000465 moulding Methods 0.000 abstract description 2
- 239000002699 waste material Substances 0.000 abstract 1
- 239000000758 substrate Substances 0.000 description 15
- 239000004576 sand Substances 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000007796 conventional method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000009977 dual effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 229910052797 bismuth Inorganic materials 0.000 description 2
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 239000006082 mold release agent Substances 0.000 description 2
- 239000011505 plaster Substances 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 229920001973 fluoroelastomer Polymers 0.000 description 1
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 description 1
- 238000010297 mechanical methods and process Methods 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Mounting, Exchange, And Manufacturing Of Dies (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野〕
本発明は簡易絞り型の製造方法に関し、詳しくは工期の
短縮等を図り、製品としての絞り型の品質を向上させる
絞り型の製造方法に関するものである。[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a method for manufacturing a simple drawing die, and more particularly, to a method for producing a drawing die that shortens the construction period and improves the quality of the drawing die as a product. It is something.
自動車等の外板、例えばフェンダ、リヤクォータ、ルー
フ、フード等の試作のために、簡易絞り型が利用されて
いる。現在一般に行われている簡易絞り型の製造方法と
して、
（ｉ）木型を基とし、これにしわ押え部等の方案を施し
たものを母型として、ダイ、ポンチおよびしわ押え部の
各々の石膏凹型を作り、これを砂型に転写造形し、この
砂型にＺＡＳ等を注湯して、ダイ、ポンチおよびしわ押
え部からなる絞り型を造形する方法（Ａ法、「トヨタ技
術」第２７巻第４号第１０２ないし１１５頁）、（ｉｔ
＞デュアルフオーム法による方法で、（ｉｉ） −１ポ
ンチプロファイル形状を抜き取った平板のブランクホル
ダープレートを用いる方法（Ｂ法、「プレス技術」第１
５巻第９号第９５ないし１０５頁）、
（ｉｉ） −２ポンチとブランクホルダーを仕切るセキ
部を板金加工にて追加して、ダイ、ポンチおよびブラン
クホルダーを造形する方法（Ｃ法、「機械と工具、１１
９７５年６月第２１ないし２５頁）、等があった。Simple drawing dies are used for prototyping exterior panels of automobiles, such as fenders, rear quarters, roofs, and hoods. As for the manufacturing method of the simple drawing die which is generally used at present, (i) A wooden mold is used as a base, and a method such as a wrinkle presser part is applied to this as the mother die, and each of the die, punch and wrinkle presser part is A method of making a plaster concave mold, transferring it to a sand mold, pouring ZAS, etc. into the sand mold, and creating a drawing mold consisting of a die, punch, and wrinkle presser (Method A, "Toyota Technology" Vol. 27) No. 4, pp. 102-115), (it
> A method using a dual form method, (ii) a method using a flat blank holder plate from which the -1 punch profile shape has been extracted (method B, "Press Technology" No. 1)
(Vol. 5, No. 9, pp. 95 to 105), (ii) -2 A method of adding a section that separates the punch and blank holder by sheet metal processing and forming the die, punch, and blank holder (C method, "Mechanical method") and tools, 11
June 1975, pages 21-25), etc.
しかしながら、上記従来の方法において、Ａ法は転写工
程が多くまたポンチとしわ押え部およびしわ押え部とダ
イにそれぞれ位置決め用のガイドの機械加工が必要であ
るため、工期が長く（例えば、Ａ級の絞り型で３５日程
度）、コスト高となる問題がある。However, in the conventional methods described above, method A requires many transfer steps and requires machining of positioning guides for the punch and wrinkle holding part, and for the wrinkle holding part and die, so the construction period is long (for example, A grade (about 35 days for the drawing die), which leads to high costs.
また、Ｂ法およびＣ法のデュアルフオーム法は板金モデ
ルから直接鋳造するため、工期の短縮がある程度図れる
ものの、Ｂ法ではポンチプロファイル毎にブランクホル
ダープレートの制作が必要でありコストが嵩み、さらに
Ｃ法では板金モデルの制作に多大な時間が必要であり、
かつ手加工によるため精度確保が困難で、制作可能な形
状に制限があり適用範囲が狭いというそれぞれ問題があ
る。In addition, the dual form methods of Method B and Method C are cast directly from the sheet metal model, which can shorten the construction period to some extent, but Method B requires the production of a blank holder plate for each punch profile, which increases costs. The C method requires a lot of time to create a sheet metal model,
Moreover, since it is hand-processed, it is difficult to ensure accuracy, and the shapes that can be produced are limited, making the scope of application narrow.
本発明は、このような問題点を考慮してなされたもので
あり、その目的とするところは、工期の短縮等を図り、
そして絞り型自身の品質を高め、広範囲に適用できる簡
易絞り型の製造方法を提供することである。The present invention has been made in consideration of such problems, and its purpose is to shorten the construction period, etc.
Another object of the present invention is to improve the quality of the drawing die itself and to provide a method for manufacturing a simple drawing die that can be widely applied.
本発明の簡易絞り型の製造方法は、
各々が分解可能なダイ鋳造枠とポンチ鋳造枠とを、該ポ
ンチ鋳造枠内にポンチ母型およびしわ押え母型を収めて
組付け、前記ダイ鋳造枠内に溶融した型材料を注湯して
まずダイを造形し、次いで前記ポンチ母型またはしわ押
え母型の一方の母型を取り去り、この取り去った母型の
空間部に溶融した型材料を注湯してポンチまたはしわ押
え部を造形し、そして次に他方の母型を取り去った後、
この母型の空間部に溶融した型材料を注湯してポンチま
たはしわ押え部を造形することを特徴とする。The method for manufacturing a simple drawing die of the present invention includes assembling a die casting frame and a punch casting frame, each of which can be disassembled, with a punch mother die and a wrinkle presser mother die housed in the punch casting frame, and the die casting frame First, a die is formed by pouring the molten mold material into the mold, then one of the punch molds or the wrinkle pressing mold is removed, and the molten mold material is poured into the space of the removed mold. After hot water and modeling the punch or wrinkle presser, and then removing the other matrix,
The method is characterized in that a punch or a wrinkle presser part is formed by pouring molten mold material into the space of the mother mold.
本発明において使用される型材料としては、低融点合金
が好ましく、その種類は所望する絞り型の形状や用途等
を考慮して選択されるが、融点が５０ないし２００°Ｃ
の範囲のものが特に好ましい。このような低融点合金と
しては、ビスマス、錫、カドミウム、アンチモン等から
なるものがあり、中でもビスマスを５０％以上含有する
ものが絞り型内にひけ巣を生じない等の理由から好まし
い。また、ダイ、ポンチおよびしわ押え部用の型材料は
互いに同一でも異なっていても良い。The mold material used in the present invention is preferably a low melting point alloy, and its type is selected taking into account the desired shape of the drawing mold and its intended use.
Particularly preferred are those within the range of . Such low melting point alloys include those made of bismuth, tin, cadmium, antimony, etc. Among them, those containing 50% or more of bismuth are preferred because they do not cause shrinkage cavities in the drawing die. Furthermore, the materials for the die, punch, and wrinkle presser may be the same or different.
また、本発明におけるポンチ母型およびしわ押え母型は
慣用の木型、砂型および樹脂モデル等が使用できる。こ
のポンチ母型およびしわ押え母型の製品形状面には離型
剤等を塗布した後に、上記造形操作を行う。Further, as the punching matrix and wrinkle pressing matrix in the present invention, conventional wooden molds, sand molds, resin models, etc. can be used. After applying a mold release agent or the like to the product shape surfaces of the punch matrix and wrinkle press matrix, the above-described shaping operation is performed.
さらに、離型剤等の塗布に代えてポンチ母型の製品形状
面および／またはしわ押え母型の製品形状面に耐熱ゴム
シートを介装することは好ましい手段であり、該耐熱ゴ
ムシートを前記母型、ダイおよび／またはしわ押え部に
密着させることにより、ポンチとしわ押え部間、ポンチ
とダイ問およびしわ押え部とダイ関のシール、クリアラ
ンスの確保および断熱が図られ有効である。この耐熱ゴ
ムシートとしては、前記型材料との接触によっても消失
しないものであれば良く、例えばシリコンゴムシートや
フッ素ゴムシート等が好ましい。Furthermore, instead of applying a mold release agent or the like, it is a preferable means to interpose a heat-resistant rubber sheet on the product-shaped surface of the punch matrix and/or the product-shaped surface of the wrinkle-pressing matrix, and the heat-resistant rubber sheet is By bringing it into close contact with the matrix, the die and/or the wrinkle holding part, it is effective to ensure sealing, clearance, and heat insulation between the punch and the wrinkle holding part, between the punch and the die, and between the wrinkle holding part and the die. The heat-resistant rubber sheet may be any material as long as it does not disappear upon contact with the mold material, and is preferably a silicone rubber sheet, a fluororubber sheet, or the like.
また、耐熱ゴムシートを前記母型、ダイおよび／または
しわ押え部に密着させるために、押湯圧および／または
負圧を活用することは好ましい手段である。Further, it is a preferable means to utilize feeder pressure and/or negative pressure in order to bring the heat-resistant rubber sheet into close contact with the matrix, die and/or wrinkle presser.
さらに、ポンチとしわ押え部およびしわ押え部とダイの
位置決めのために、鋳造枠にガイド構造を予め設けるこ
とも有効な手段であり、これにより絞り型造形後の後加
工が不要となる。Furthermore, it is also an effective means to previously provide a guide structure in the casting frame for positioning the punch and the wrinkle holding part and the wrinkle holding part and the die, thereby eliminating the need for post-processing after forming the drawing die.
本発明の簡易絞り型の製造方法は、従来のように捨てモ
デルを必要とすることなく、木型等で制作したポンチ母
型としわ押え母型とから、ダイ、ポンチおよびしわ押え
部を、順次直接造形するため、絞り型は短期間で製作可
能となった。The method for manufacturing a simple drawing die of the present invention does not require a disposable model as in the conventional method, and the die, punch, and wrinkle presser are assembled from a punch mother die and a wrinkle presser mother die made from a wooden mold or the like. The drawing mold can be produced in a short period of time because it is directly shaped one after another.
また、母型または母型に耐熱ゴムシートを介して直接注
湯して造形するため、型の品質劣化を防くことができる
。In addition, since the mold is directly poured into the mother mold or mold through a heat-resistant rubber sheet, deterioration in quality of the mold can be prevented.
〔実施例］
次に、図面を参照して本発明の詳細な説明するが、本発
明はこれに限定されるものではない。[Example] Next, the present invention will be described in detail with reference to the drawings, but the present invention is not limited thereto.
実施例１
第１図ないし第４図は、本発明の第１の実施例を示すも
のである。Embodiment 1 FIGS. 1 to 4 show a first embodiment of the present invention.
第１工程・・・ダイの造形（第１図参照）鋳造枠は、ダ
イ基板１およびダイ側板３とからなるダイ鋳造枠りと、
ポンチ基板２およびしわ押え側板４とからなるポンチ鋳
造枠Ｐとから構成され、各々分解可能である。ここで、
ポンチ鋳造枠Ｐは、ポンチ基板２に第１図に示すように
木型等の通気のために中央部に穿孔したポンチ母型６を
ボルト７で取付けてあり、これにしわ押え側板４を組付
け、砂型あるいは木型等のしわ押え母型５をセットしで
ある。このポンチ母型６としわ押え母型５の製品形状面
に、型クリアランスと同厚の耐熱ゴムシート（例えばフ
ッ素ゴム製）９を介装したポンチ鋳造枠Ｐと、ダイ鋳造
枠りとを組付ける。そして該シート９を、圧力計１０′
を備えたパイプＩＯを接続した孔３１から吸引すること
による負圧を活用して、ポンチ母型６およびしわ押え母
型５に密着させる。次いで、ダイ側板３の孔１２より溶
融した型材料を注湯し、これを冷却凝固させてダイ１３
を造形する。このときダイ１３は、ダイ基板１に設けら
れたクサビ８によりダイ基板１に固定される。また所望
により、孔１２より押湯することによって、ポンチ母型
６およびしわ押え母型５に耐熱ゴムシート９をさらに密
着させても良い。First step: Shaping the die (see Figure 1) The casting frame consists of a die substrate 1 and a die side plate 3;
It consists of a punch casting frame P consisting of a punch base plate 2 and a wrinkle presser side plate 4, each of which can be disassembled. here,
In the punch casting frame P, as shown in Fig. 1, a punch base die 6 with a hole bored in the center for ventilation of the wooden mold, etc. is attached to the punch base plate 2 with bolts 7, and a wrinkle presser side plate 4 is assembled to this. Then, a creasing matrix 5 such as a sand mold or a wooden mold is set. A punch casting frame P, in which a heat-resistant rubber sheet (for example, made of fluorocarbon rubber) 9 having the same thickness as the mold clearance is interposed, and a die casting frame are assembled on the product shape surfaces of the punch matrix 6 and wrinkle press matrix 5. wear. Then, the sheet 9 is attached to the pressure gauge 10'
Utilizing the negative pressure created by suctioning from the hole 31 connected to the pipe IO equipped with the pipe IO, it is brought into close contact with the punch mother mold 6 and the wrinkle press mother mold 5. Next, the molten mold material is poured into the hole 12 of the die side plate 3, and is cooled and solidified to form the die 13.
Model. At this time, the die 13 is fixed to the die substrate 1 by the wedge 8 provided on the die substrate 1. Further, if desired, the heat-resistant rubber sheet 9 may be further brought into close contact with the punch matrix 6 and the wrinkle press matrix 5 by feeding through the holes 12.
第２工程・・・ポンチの造形（第１．２図参照）断熱ゴ
ムシート９を孔１２より負圧で引きながら、ポンチ基板
２およびポンチ母型６を取り外して、該ポンチ母型６を
取り去った後、再びポンチ基板２をセットする。しわ押
え母型５、ダイ１３に密着した耐熱ゴム９およびポンチ
基板２とで囲まれた空間部に、ポンチ基板２に設けた孔
１５より溶融した型材料を注湯し、湯口部１６にて押湯
を施す。しかる後に型材料を冷却凝固させポンチ１８を
造形する。このときポンチ１８は、ポンチ基板２に設け
られたクサビ１７によりポンチ基板２に固定される。2nd step: Forming a punch (see Figure 1.2) While pulling the insulating rubber sheet 9 through the hole 12 with negative pressure, remove the punch substrate 2 and the punch matrix 6, and remove the punch matrix 6. After that, set the punch board 2 again. The molten mold material is poured into the space surrounded by the wrinkle presser matrix 5, the heat-resistant rubber 9 in close contact with the die 13, and the punch base plate 2 through the hole 15 provided in the punch base plate 2, and then poured into the space surrounded by the wrinkle presser matrix 5, the heat-resistant rubber 9 in close contact with the die 13, and the punch base plate 2 through the hole 15 provided in the punch base plate 2. Apply a boiling bath. Thereafter, the mold material is cooled and solidified to form the punch 18. At this time, the punch 18 is fixed to the punch board 2 by a wedge 17 provided on the punch board 2.
第３工程・・・しわ押え部の造形（第２．３図参照）ポ
ンチ１８造形後、ポンチ基板２およびポンチ１８を鋳造
枠より取り外し、しわ押え母型５を取り除く。次に、ポ
ンチ１８としわ押え部との境界にクリアランスを確保で
きる耐熱ゴムシート１９を耐熱接着剤等で貼着し、再び
ポンチ基板２およびポンチ１８をセットする。ポンチ基
板２、耐熱ゴムシートを貼付したポンチ１８、ダイ１３
およびしわ押え側板４にて囲まれた空間部に、しわ押え
側板４に設けた孔２０より溶融した型材料を注湯し、そ
の後押湯を施す。しかる後に型材料を冷却凝固させしわ
押え部２２を造形する。このときしわ押え部２２は、し
わ押え側板４に設けられたクサビ２３によりしわ押え側
板４に固定される。Third step: Forming the wrinkle presser portion (see Figure 2.3) After forming the punch 18, the punch substrate 2 and the punch 18 are removed from the casting frame, and the wrinkle presser mold 5 is removed. Next, a heat-resistant rubber sheet 19 that can secure a clearance between the punch 18 and the wrinkle holding part is attached with a heat-resistant adhesive or the like, and the punch substrate 2 and the punch 18 are set again. Punch board 2, punch 18 with heat-resistant rubber sheet attached, die 13
Then, molten mold material is poured into the space surrounded by the wrinkle presser side plate 4 through holes 20 provided in the wrinkle presser side plate 4, and then a feeder is applied. Thereafter, the mold material is cooled and solidified to form the wrinkle holding part 22. At this time, the wrinkle presser part 22 is fixed to the wrinkle presser side plate 4 by a wedge 23 provided on the wrinkle presser side plate 4.
第４工程・・・プレス工程（第４図参照）造形されたダ
イ１３、ポンチ１８、しわ押え部２２は、各々ダイ基板
１、ポンチ基板２、しわ押え側板４に固定され、そして
ダイ基板１はプレス機ラム２４に、ポンチ基板２はプレ
ス機ボルスタ−２５に固定される。一方、しわ押え部２
２はポンチ基板２に予め設けておいた孔２６を通してプ
レス機ボルスタ−２５のクツションピン２７にて押し上
げられ固定される。Fourth step...Press step (see FIG. 4) The molded die 13, punch 18, and wrinkle presser part 22 are fixed to the die substrate 1, punch substrate 2, and wrinkle presser side plate 4, respectively, and the die substrate 1 is fixed to a press ram 24, and the punch base plate 2 is fixed to a press bolster 25. On the other hand, wrinkle presser 2
2 passes through a hole 26 previously provided in the punch base plate 2 and is pushed up and fixed by a cushion pin 27 of a press bolster 25.
また、ポンチ１８としわ押え部２２の位置決めはポンチ
基板２に設けられた位置決めピン２日とこれに嵌合する
しわ押え側板４の孔とで行われる。そして同様に、しわ
押え部２２とダイ１３の位置決めもしわ押え側板４に設
けられた位置決めピン２９とこれに嵌合するダイ側板３
の孔とで行われる。これらの位置決めのためのピンおよ
び孔からなるガイド構造は造形に先立って予め設けてお
いたものである。Further, the positioning of the punch 18 and the wrinkle presser part 22 is performed using a positioning pin 2 provided on the punch base plate 2 and a hole in the wrinkle presser side plate 4 that fits into the positioning pin 2 . Similarly, the positioning of the wrinkle presser part 22 and the die 13 is performed using the positioning pin 29 provided on the wrinkle presser side plate 4 and the die side plate 3 that fits into the positioning pin 29.
It is done with a hole in the hole. A guide structure consisting of pins and holes for these positionings is provided in advance prior to modeling.
実施例２
第１工程・・・ダイの造形
耐熱ゴムシート９の介装を省略した以外は実施例１の第
１工程と同じ。Example 2 First step: Same as the first step of Example 1 except that the molding of the die and the interposition of the heat-resistant rubber sheet 9 were omitted.
第２工程・・・しわ押え部の造形（第１．５図参照）ダ
イ１３造形後、ポンチ基板２、ポンチ母型６およびしわ
押え母型５を鋳造枠より取り外す。2nd step: Forming the wrinkle presser portion (see Fig. 1.5) After forming the die 13, the punch substrate 2, the punch mother die 6, and the wrinkle presser mother die 5 are removed from the casting frame.
次に、第５図に示すようにクリアランスを確保できる耐
熱ゴムシート３０を鋳造枠にセットし、再びポンチ基板
２とポンチ母型６を組付けた後、孔３１より負圧にて該
シート３０をポンチ母型６に密着させる。また、造形し
たダイ１３の表面にはシリコン等の断熱のための耐熱ゴ
ムシート３２を介装させる。しかる後にポンチ基板２、
ポンチ母型６、ダイ１３およびしわ押え側板４とで囲ま
れた空間部に溶融した型材料を注湯し、圧力計２１′を
備えたバイブ２１から押湯を施し型材料を冷却凝固させ
しわ押え部３３を造形する。このときしわ押え部３３は
、しわ押え側板４に設けられたクサビ２３によりしわ押
え側板４に固定される。Next, as shown in FIG. 5, a heat-resistant rubber sheet 30 that can ensure clearance is set in the casting frame, and after assembling the punch base plate 2 and the punch matrix 6 again, the sheet 30 is applied with negative pressure through the hole 31. is brought into close contact with the punch matrix 6. Furthermore, a heat-resistant rubber sheet 32 made of silicone or the like for heat insulation is interposed on the surface of the shaped die 13. After that, punch board 2,
Molten mold material is poured into the space surrounded by the punch mother mold 6, die 13, and wrinkle presser side plate 4, and a riser is applied from a vibrator 21 equipped with a pressure gauge 21' to cool and solidify the mold material and wrinkle it. The presser part 33 is modeled. At this time, the wrinkle presser part 33 is fixed to the wrinkle presser side plate 4 by the wedge 23 provided on the wrinkle presser side plate 4.
第３工程・・・ポンチの造形（第５．６図参照）しわ押
え部３３を造形後、しわ押え側板４の孔２０より負圧で
耐熱ゴム３０をしわ押え部３３およびダイ１３に密着さ
せながら、ポンチ基板２とポンチ母型６を取り外し、該
ポンチ母型６を取り去った後再びポンチ基板２をセット
する。ポンチ母型６を取り去った空間部に、ポンチ基板
２に設けた孔１５より溶融した型材料を注湯し、湯口部
１６にて押湯を施す。しかる後に型材料を冷却凝固させ
ポンチ３４を造形する。3rd step: Forming a punch (see Figure 5.6) After forming the wrinkle presser part 33, the heat-resistant rubber 30 is brought into close contact with the wrinkle presser part 33 and the die 13 using negative pressure from the hole 20 of the wrinkle presser side plate 4. At the same time, the punch substrate 2 and the punch matrix 6 are removed, and after the punch matrix 6 is removed, the punch substrate 2 is set again. Molten mold material is poured into the space from which the punch mother die 6 has been removed through the hole 15 provided in the punch base plate 2, and a riser is applied at the sprue portion 16. Thereafter, the mold material is cooled and solidified to form the punch 34.
このときポンチ３４は、ポンチ基板２に設けられたクサ
ビ１７によりポンチ基板２に固定される。At this time, the punch 34 is fixed to the punch board 2 by the wedge 17 provided on the punch board 2.
第４工程・・・プレス工程（第７図参照）造形されたダ
イ１３、ポンチ３４、しわ押え部３３は、各々ダイ基板
１、ポンチ基板２、しわ押え側板４に固定され、そして
ダイ基板１はプレス機ラム２４に、ポンチ基板２はプレ
ス機ボルスタ−２５に固定される。一方、しわ押え部３
３はしわ押え側板４を介しプレス機ボルスタ−２５のク
ツションピン２７にて押し上げられ固定される。Fourth step...Press step (see FIG. 7) The molded die 13, punch 34, and wrinkle presser part 33 are fixed to the die substrate 1, punch substrate 2, and wrinkle presser side plate 4, respectively, and then the die substrate 1 is fixed to a press ram 24, and the punch base plate 2 is fixed to a press bolster 25. On the other hand, wrinkle presser part 3
3 is pushed up and fixed by the cushion pin 27 of the press machine bolster 25 via the wrinkle pressing side plate 4.
また、ポンチ１８としわ押え部３３およびしわ押え部３
３とダイ１３の位置決めは実施例１と同様に予め設けら
れた位置決めピンとこれに嵌合する孔とで行われる。In addition, the punch 18, the wrinkle presser 33, and the wrinkle presser 3
3 and the die 13 are positioned in the same way as in the first embodiment using a positioning pin provided in advance and a hole that fits into the positioning pin.
以上説明したように、本発明の簡易絞り型の製造方法は
、従来の方法のように石膏型や砂型等の捨てモデルを製
作する必要がなく、しかも造形後の仕上げや位置決めの
ためのガイド構造の加工が不要のため、製作期間の短縮
、コストの低減等を図ることができ、生産性を飛躍的に
向上させるものである。As explained above, the simple drawing die manufacturing method of the present invention does not require the production of disposable models such as plaster molds or sand molds as in conventional methods, and also has a guide structure for finishing and positioning after modeling. Since no machining is required, it is possible to shorten production time and reduce costs, dramatically improving productivity.
また、デュアルフオーム法用の板金モデルに比較し、本
発明の方法では木型等を母型とするため型精度が向上し
、さらに該木型から直接型を造形するため、型の品質劣
化を非常に少なくすることも可能とした。In addition, compared to the sheet metal model for the dual form method, the method of the present invention uses a wooden pattern as a matrix, which improves mold accuracy.Furthermore, since the mold is directly formed from the wooden mold, deterioration in mold quality is avoided. It is also possible to reduce it to a very small amount.
そして、この母型としての木型は、複雑なしね押え面形
状の絞り型でも容易に製作できるため、適用範囲が増大
する。Furthermore, since this wooden mold serving as the mother mold can be easily manufactured even with a drawing mold having a complicated pressing surface shape, the range of application is increased.
第１図ないし第４図は、本発明の第１の実施例の手順を
説明する工程図、
第５図ないし第７図は、本発明の第２の実施例の手順を
説明する工程図を表す。
図中、
Ｄ・・・ダイ鋳造枠 Ｐ・・・ポンチ鋳造枠１・
・・ダイ基板 ２・・・ポンチ基板３・・・ダ
イ側板 ４・・・しわ押え側板５・・・しわ押
え母型 ６・・・ポンチ母型９．１９，３０．３２
・・・耐熱ゴムシート１３・・・ダイ １８．３４
・・・ポンチ２２．３３・・・しわ押え部
才４図
才５図
２６図
オフ図Figures 1 to 4 are process diagrams explaining the procedure of the first embodiment of the present invention, and Figures 5 to 7 are process diagrams explaining the procedure of the second embodiment of the invention. represent. In the diagram, D...Die casting frame P...Punch casting frame 1.
...Die board 2...Punch board 3...Die side plate 4...Wrinkle presser side plate 5...Wrinkle presser matrix 6...Punch matrix 9.19, 30.32
...Heat-resistant rubber sheet 13...Die 18.34
...Punch 22.33...Wrinkle presser part Figure 4 Figure Figure 5 Figure 26 Off view
Claims (1)
、該ポンチ鋳造枠内にポンチ母型およびしわ押え母型を
収めて組付け、前記ダイ鋳造枠内に溶融した型材料を注
湯してまずダイを造形し、次いで前記ポンチ母型または
しわ押え母型の一方の母型を取り去り、この取り去った
母型の空間部に溶融した型材料を注湯してポンチまたは
しわ押え部を造形し、そして次に他方の母型を取り去っ
た後、この母型の空間部に溶融した型材料を注湯してポ
ンチまたはしわ押え部を造形することを特徴とする簡易
絞り型の製造方法。 （２）ポンチ母型の製品形状面および／またはしわ押え
母型の製品形状面に耐熱ゴムシートを介装することを特
徴とする特許請求の範囲第１項記載の簡易絞り型の製造
方法。 （３）耐熱ゴムシートを前記母型、ダイおよび／または
しわ押え部に密着させるために、押湯圧を活用すること
を特徴とする特許請求の範囲第２項記載の簡易絞り型の
製造方法。（４）耐熱ゴムシートを前記母型、ダイおよ
び／またはしわ押え部に密着させるために、負圧を活用
することを特徴とする特許請求の範囲第２項記載の簡易
絞り型の製造方法。 （５）ポンチとしわ押え部およびしわ押え部とダイの位
置決めのために、鋳造枠にガイド構造を予め設けること
を特徴とする特許請求の範囲第１項記載の簡易絞り型の
製造方法。[Scope of Claims] (1) A die casting frame and a punch casting frame, each of which can be disassembled, are assembled with a punch mother die and a creasing mother die housed in the punch casting frame, and the die casting frame is assembled into a die casting frame. First, a die is formed by pouring the molten mold material, then one of the punch matrix or the wrinkle pressing matrix is removed, and the molten mold material is poured into the space of the removed matrix. The method is characterized in that the punch or the wrinkle presser part is formed by using the mold, and then the other matrix is removed, and then the molten mold material is poured into the space of this matrix to form the punch or the wrinkle presser part. A method for manufacturing a simple drawing die. (2) A method for manufacturing a simple drawing die according to claim 1, characterized in that a heat-resistant rubber sheet is interposed on the product-shaped surface of the punching matrix and/or the product-shaped surface of the wrinkle-pressing matrix. (3) A method for manufacturing a simple drawing die according to claim 2, characterized in that feeder pressure is utilized to bring the heat-resistant rubber sheet into close contact with the mother mold, the die, and/or the wrinkle holding part. . (4) The method for manufacturing a simple drawing die according to claim 2, characterized in that negative pressure is utilized to bring the heat-resistant rubber sheet into close contact with the mother mold, the die, and/or the wrinkle presser. (5) A method for manufacturing a simple drawing die according to claim 1, characterized in that a guide structure is provided in advance in the casting frame for positioning the punch, the wrinkle presser, and the wrinkle presser and the die.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25125987A JPH0195830A (en) | 1987-10-05 | 1987-10-05 | Manufacture of simplified drawing die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25125987A JPH0195830A (en) | 1987-10-05 | 1987-10-05 | Manufacture of simplified drawing die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0195830A true JPH0195830A (en) | 1989-04-13 |
Family
ID=17220115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25125987A Pending JPH0195830A (en) | 1987-10-05 | 1987-10-05 | Manufacture of simplified drawing die |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0195830A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02284741A (en) * | 1989-04-25 | 1990-11-22 | Toyota Motor Corp | Manufacture of simple dies |
| US5329981A (en) * | 1989-05-10 | 1994-07-19 | Toyota Jidosha Kabushiki Kaisha | Method of producing a metal mold |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS556014A (en) * | 1978-06-23 | 1980-01-17 | Daikin Mfg Co Ltd | Dual clutch |
-
1987
- 1987-10-05 JP JP25125987A patent/JPH0195830A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS556014A (en) * | 1978-06-23 | 1980-01-17 | Daikin Mfg Co Ltd | Dual clutch |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02284741A (en) * | 1989-04-25 | 1990-11-22 | Toyota Motor Corp | Manufacture of simple dies |
| US5329981A (en) * | 1989-05-10 | 1994-07-19 | Toyota Jidosha Kabushiki Kaisha | Method of producing a metal mold |
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