JPS60141352A - Casting method of die holder - Google Patents

Abstract

PURPOSE:To decrease the weight of a die holder and to permit easy handling by forming a core provided with an engaging part on the outside circumferential surface of a wear-resistant metal, disposiig the same in the position corresponding to the punch and die mounting part in a casting mold and pouring an aluminum alloy into the die. CONSTITUTION:A die holder 1 is of a swan neck type consisting of an upper arm part 3, a lower arm part 5 and a cylindrical part 7. A punch 9 and a die 11 are attached to the top ends of the part 3 and the part 5 so that bath are on the same vertical line. A casting mold 13 which casts such die holder 1 is sand mold formed by an ordinary molding method and a core 15 is formed of a wear-resistant metal and is disposed in the sand mold 13. Engaging ruggedness, i.e., many circumferential grooves 17 are provided to the core 15 to prevent sepn. of the core from a casting body after casting. A molten aluminum alloy is poured through a pouring port 21 into the mold 13 to accomplish casting. The connecting part is cut off to separate the upper arm part 3 and the lower arm part 5, by which the die holder 1 is obtd.

Description

【発明の詳細な説明】 この発明は、金属板材等の打板加工に用いられるパンチ
ヒツト金型ホルダの製造方法に関し、特にアルミニウム
合金製金型ホルダの鋳造方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing a punch-hit mold holder used for punching metal plates and the like, and particularly to a method for casting an aluminum alloy mold holder.

金属板材等の打板加工に用いられるパンチ及びダイ金型
を同−支持部材に保持するため、いわゆるスワンネック
ボルダと呼ばれる金型ホルダが用いられている。この金
型ボルダは、従来ＦＣＤ／１５（球状黒鉛鋳鉄品第２種
）等のｔ４摩耗性金原２月料で形成されたものが用いら
れていた。ところが、この種材料はＭ量が大きいため、
段取り等の作業の際取扱いにぎわめて不便であった。A mold holder called a so-called swan-neck boulder is used to hold punch and die molds used for punching metal plates and the like on the support member. This mold boulder has conventionally been made of a T4 abrasive metal material such as FCD/15 (class 2 spheroidal graphite cast iron product). However, since this kind of material has a large amount of M,
It was extremely inconvenient to handle during work such as setup.

そこでこの問題点を解消するため、Ａ−２Ｃ等のアルミ
ニウム合金鋳物を用いることが行われているが、この場
合はガイド等の囲動部分が摩耗し易く、またダイ装着部
分の圧縮強度が不十分である、等の難点がある。In order to solve this problem, aluminum alloy castings such as A-2C are used, but in this case, the surrounding parts such as guides are prone to wear, and the compressive strength of the die attachment part is insufficient. There are some drawbacks, such as whether it is sufficient.

本発明は、上記の問題点を解消し、軽傷で取り扱い易く
、しかもすぐれた耐摩耗性、圧縮強度を有する金型ボル
ダを製造する方法を提供することを目的としてなされた
ものである。The present invention has been made with the object of solving the above-mentioned problems and providing a method for manufacturing a mold boulder that is easy to handle with only minor damage and has excellent wear resistance and compressive strength.

上記目的を達成する本発明は、金型ホルダのパンチ及び
ダイ装着部分を耐摩耗性金属材料で形成覆るとともに他
の部分をアルミニウム合金により形成することによって
、上記の問題点を解潤し＋５またものである。づ゛なわ
ち本発明方法は、耐摩耗性金属材料で形成し、外周面に
係合部を設（）た中子を金型小ルタ鋳造用鋳型内のパン
チ及びダイ装着部に相当づる位置に配■し、該鋳型内に
アルミニウム合金を鋳込むことを要旨とする。ここに、
パンチ及びタイの中子を−それぞれ独立形成して鋳込む
場合には、完成鋳造品においてのパンチ及びダイの軸心
を合わせるべく旋盤等用いて軸合わせを行う。一方、パ
ンチ中子とダイ中子を一体的に形成する場合には、形成
された鋳造品のバンヂ装看部とダイ装着部の間を切削加
工して分割すれば、軸合わせは不要となる。The present invention, which achieves the above object, solves the above problems by forming and covering the punch and die mounting parts of the mold holder with a wear-resistant metal material and forming other parts with an aluminum alloy. It is. That is, in the method of the present invention, a core made of a wear-resistant metal material and having an engaging portion on its outer circumferential surface is placed in a mold for casting a small metal mold at a position corresponding to the punch and die mounting portion. The gist is to place an aluminum alloy into the mold and cast the aluminum alloy into the mold. Here,
When punches and tie cores are formed independently and cast, a lathe or the like is used to align the axes of the punch and die in the finished cast product. On the other hand, when forming the punch core and die core integrally, alignment is not necessary if the formed casting is divided by cutting between the banding part and the die mounting part. .

以下、図面を参照し実施例の詳細を説明する。Hereinafter, details of the embodiments will be described with reference to the drawings.

第１図は本発明方法を適用する金型ホルダの一部断面側
面図である。金型ボルダ１は上腕部３、下腕部５ならび
に胴部７からなり、いわゆるスワンネック形をなしてい
る。上腕部３および下腕部５の先端部にはパンチ９およ
びダイ１１が同一垂直軸上に取イ」【ノられる。FIG. 1 is a partially sectional side view of a mold holder to which the method of the present invention is applied. The mold boulder 1 consists of an upper arm part 3, a lower arm part 5, and a body part 7, and has a so-called swan neck shape. A punch 9 and a die 11 are mounted on the same vertical axis at the tips of the upper arm 3 and the lower arm 5.

第２図は金型ホルダ１を鋳造するための鋳型の断面図で
、１３は通常の型込み方法に一部り形成される砂型であ
る。図中斜線、で示した中子１５は予めＦＣＤ４５等の
耐摩耗性金属材料で作成し、図示の如く砂型１３中に配
置される。その位置は金型ホルダ１のパンチ９及びダイ
１１の装着部に相当する。FIG. 2 is a cross-sectional view of a mold for casting the mold holder 1, and numeral 13 is a sand mold formed in part by a normal molding method. The core 15 indicated by diagonal lines in the figure is made in advance from a wear-resistant metal material such as FCD 45, and placed in the sand mold 13 as shown in the figure. The position corresponds to the mounting portion of the punch 9 and die 11 of the mold holder 1.

第３図は上記中子１５の形状を示しｌ〔斜視図で中子１
５にはその外周面に係合凹凸即ち、多数の円周方向の溝
１７が設けられている。この満１７は鋳込み後中子１５
が鋳造品本体から分離するのを防ぐためのものである。FIG. 3 shows the shape of the core 15 (core 1 in a perspective view).
5 is provided with engagement unevenness, that is, a large number of circumferential grooves 17 on its outer peripheral surface. This full 17 is the core 15 after casting.
This is to prevent the metal from separating from the cast body.

なお参照番号１９は板金打板加工時のスクラップ排出用
として設けられた孔部を示す。Note that reference number 19 indicates a hole provided for discharging scrap during sheet metal stamping processing.

上記のように形成した第２図の鋳型１３に、注入口２１
からＡ−２Ｃ等の溶融アルミニウム合金を注入して鋳造
を行う。第４図はｇ道後鋳型から取り出された鋳造品の
側面図で、上腕部３および下腕部５の先端部には前記中
子１５が埋め込まれパンチ及びダイ部が連結された状態
となっている。The injection port 21 is placed in the mold 13 of FIG. 2 formed as described above.
Casting is performed by injecting molten aluminum alloy such as A-2C. FIG. 4 is a side view of the cast product taken out from the G-Dogo mold, with the core 15 embedded in the tips of the upper arm 3 and lower arm 5, and the punch and die parts connected. There is.

そこでこの連結部分（図示斜線部）を切削加工により切
り取り、上腕部３と下腕部５とを分割する。Therefore, this connecting portion (the shaded portion in the figure) is cut off by cutting to separate the upper arm portion 3 and the lower arm portion 5.

なお、この際、同時にダイブロック２７の（第１図参照
）装着部も機械加工する例を示している。Note that, at this time, an example is shown in which the mounting portion of the die block 27 (see FIG. 1) is also machined at the same time.

第５図はダイブロック２１を組み付はパンチ及びダイ装
着孔２３．２５を備えた金型ホルダ１の完成状態を示す
側面図である。ダイブロック２７は予めその外形を機械
加工しておぎ、前述の機械加工した箇所に組み付ける。FIG. 5 is a side view showing the finished state of the mold holder 1 with the die block 21 assembled and punch and die mounting holes 23,25. The outer shape of the die block 27 is machined in advance, and the die block 27 is assembled into the machined portion described above.

なお、パンチ９、ダイ１１の装着孔２３．２５は最終加
工するのが良い。又、なお、パンチ・ダイ装着孔２３．
２５内面にはバニシング加工が施される。Incidentally, it is preferable that the mounting holes 23 and 25 for the punch 9 and the die 11 be subjected to final processing. In addition, the punch/die mounting hole 23.
25 The inner surface is burnished.

上記のようにして、パンチ・ダイ装着部分を耐摩耗性金
属材料例えばＦＣＤ４５で形成し、他の部分をアルミニ
ウム合金例えばＡ−２０により形成した金型ホルダにお
いては、従来のＦＣＤ！ｉｆホルダに比し例えば半分位
の重石となり、しかもパンチガイドの上下摺動部分は従
来通りの耐摩耗性を有し、ダイ装着部分の強度も従来品
と同等である。As described above, in a mold holder in which the punch/die mounting portion is formed of a wear-resistant metal material such as FCD45 and the other portion is formed of an aluminum alloy such as A-20, conventional FCD! The weight is, for example, about half that of an IF holder, and the vertical sliding portion of the punch guide has the same wear resistance as conventional products, and the strength of the die mounting portion is also the same as that of conventional products.

以上の説明により明らかなとおり、本発明の金型ホルダ
鋳造方法においては、耐摩耗性金属材料により形成し外
周面に係合凹凸部を設【プた中子をパンチ及びダイ装着
部に相当する位置に配置した鋳型内にアルミニウム合金
を鋳込んで金型ホルダを製造するので、従来の金型ホル
ダに比して市川が大幅に軽減され、使用時の段取り等の
作業のための取扱いがきわめて容易となる。しかも、摺
動部や圧縮力の掛る部分はＦＣＤ４５Ｗの耐摩耗性、高
圧縮強度の材料で形成されるので、摩耗や破損の心配も
ない。また、前記中子は外周面に係合部を設けてアルミ
ニウム合金中に謁込まれるので、鋳造品本体に堅固に固
着し、使用に伴って分離するようなことがない。かくし
て本発明は従来の問題点を解消し、軽量で取り扱い易く
、しかもすぐれた耐摩耗性、圧縮強度を有りる金型ホル
ダの製造方法を提供し得たものである。As is clear from the above explanation, in the mold holder casting method of the present invention, a core formed of a wear-resistant metal material and having engaging uneven portions on the outer circumferential surface is used as a punch and die mounting portion. Since the mold holder is manufactured by casting aluminum alloy into the mold placed in the specified position, the mold holder is significantly reduced in size compared to conventional mold holders, and it is extremely easy to handle for work such as setup during use. It becomes easier. Furthermore, since the sliding parts and the parts to which compressive force is applied are made of FCD45W, a material with wear resistance and high compressive strength, there is no fear of wear or damage. Furthermore, since the core is fitted into the aluminum alloy with an engaging portion provided on its outer circumferential surface, it is firmly fixed to the cast body and does not separate during use. Thus, the present invention solves the conventional problems and provides a method for manufacturing a mold holder that is lightweight, easy to handle, and has excellent wear resistance and compressive strength.

【図面の簡単な説明】 図面はいずれも実施例を示し、第１図は本発明方法を適
用される金型ホルダの一例を示づ一部断面側面図、第２
図は金型ボルダを鋳造するための鋳型の断面図、第３図
は中子の形状を示す斜視図、第４図は鋳造後の鋳造品の
側面図、第５図はｖＩ造されＩこ金型ボルタの完成状態
を示１側面図である。 １・・・金型ボルタ　３・・・上腕部 ５・・・下腕部　７・・・胴部 ９・・・パンチ　１１・・・ダイ　１３・・・砂型１５
・・・中子　１７・・・溝 １９・・・スクラップ排出孔 ２１・・・注入孔 第１図 第３図 ＣＳ 第４図 第５図[BRIEF DESCRIPTION OF THE DRAWINGS] The drawings all show examples, and FIG. 1 is a partially sectional side view showing an example of a mold holder to which the method of the present invention is applied, and FIG.
The figure is a sectional view of a mold for casting a metal mold boulder, Figure 3 is a perspective view showing the shape of the core, Figure 4 is a side view of the cast product after casting, and Figure 5 is a FIG. 1 is a side view showing the completed state of the mold bolt. 1... Mold bolt 3... Upper arm part 5... Lower arm part 7... Body part 9... Punch 11... Die 13... Sand mold 15
... Core 17 ... Groove 19 ... Scrap discharge hole 21 ... Injection hole Figure 1 Figure 3 CS Figure 4 Figure 5

Claims (2)

【特許請求の範囲】[Claims] （１）耐摩耗性金ｌ１ｊｌｉ祠料で形成し外周面に係合
部を設けた中子を金型ホルダ鋳造用鋳型内のパンチ及び
ダイ装着部に相当する位置に配置し、該鋳型内にアルミ
ニウム合金を鋳込むことを特徴とする金型ホルダｖｊ造
方法。(1) Place the core made of wear-resistant gold abrasive and provided with an engaging part on the outer circumferential surface in a position corresponding to the punch and die mounting part in the mold for casting the mold holder, and insert it into the mold. A mold holder vj manufacturing method characterized by casting aluminum alloy. （２）前記中子が、パンチ中子及びダイ中子を同−軸上
一体的に形成して成るものである特許請求の範囲第１項
に記載の金型ホルダ鋳造方法(2) The mold holder casting method according to claim 1, wherein the core is formed by integrally forming a punch core and a die core on the same axis.