JP6386895B2 - Die for press - Google Patents

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JP6386895B2
JP6386895B2 JP2014243680A JP2014243680A JP6386895B2 JP 6386895 B2 JP6386895 B2 JP 6386895B2 JP 2014243680 A JP2014243680 A JP 2014243680A JP 2014243680 A JP2014243680 A JP 2014243680A JP 6386895 B2 JP6386895 B2 JP 6386895B2
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steel plate
mold
press
steel
steel plates
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博康 田井
博康 田井
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株式会社泉陽商会
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Description

本発明は、プレス用金型に関する。   The present invention relates to a press mold.

従来、金属板をプレス加工によって成形するには、雄型と雌型を備えたプレス用金型が用いられている（特許文献１参照）。   Conventionally, in order to form a metal plate by press working, a pressing die having a male die and a female die is used (see Patent Document 1).

特開２０１０−９９７００号公報JP 2010-99700 A

しかし、図７に示すような従来の金型は、雄型８及び雌型９を、金属ブロックから削り出しによって製作するため、製作に手間と時間が掛かり、コストが増大するという欠点があった。また、短い期間内に、小ロットのプレス製品を製作するために従来の削り出し金属ブロックでは間に合わないという欠点もあった。   However, since the conventional mold as shown in FIG. 7 is manufactured by cutting the male mold 8 and the female mold 9 from the metal block, there is a disadvantage that it takes time and effort to manufacture and the cost increases. . In addition, there is a disadvantage that the conventional machined metal block is not in time for producing a small-lot press product within a short period of time.

そこで、本発明は、短時間かつ低コストで製作できるプレス用金型を提供することを目的とする。   Then, an object of this invention is to provide the metal mold | die for press which can be manufactured in a short time and low cost.

本発明に係るプレス用金型は、雄型と雌型の夫々が、所定形状に打ち抜かれた複数枚の鋼板を積層状とした鋼板積層体と、該鋼板積層体に串差し状に挿通する位置決めピンと、上記鋼板積層体の端面と上記位置決めピンの端部とが溶接にて固着されて形成された抜け止め部と、上記鋼板積層体の積層方向に沿って上記鋼板同士を固着一体化した線状の溶接部と、を有し、さらに、上記鋼板積層体はプレス製品を形成するための成形面を有し、該成形面に上記溶接部が設けられ、上記成形面に設けられた上記溶接部は、上記成形面に沿うように研削仕上げされ、上記雄型と上記雌型の夫々がブロック状に構成されているものである。 In the press mold according to the present invention, each of a male die and a female die is inserted into a steel plate laminate in which a plurality of steel plates punched into a predetermined shape are laminated, and the steel plate laminate is inserted in a skewered manner. A positioning pin, an end face of the steel sheet laminate, and an end portion of the positioning pin are fixed by welding, and the steel plates are fixed and integrated along the stacking direction of the steel sheet laminate. The steel sheet laminate has a molding surface for forming a pressed product, the welding portion is provided on the molding surface, and the molding surface is provided with the welding surface. weld is finished by grinding along the above molding surface, Ru der those people respectively of the male and the female are configured in blocks.

本発明のプレス用金型によれば、容易に短時間で製作でき、型製作費用を低減できる。高性能切削工作機や放電加工機等の高精度で高価な機械工作設備が無くても金型を製作できる。特に、少量の新しい形状のプレス製品（プレス加工品）を短い納期内に製造せねばならない場合のプレス用金型として、容易に短時間で製作できるという本発明の効果は、小ロットのプレス製品を製造する現場にとって最適な発明である。   According to the press die of the present invention, it can be easily manufactured in a short time, and the die manufacturing cost can be reduced. Dies can be manufactured without high-precision and expensive machine tools such as high-performance cutting machines and electrical discharge machines. In particular, the effect of the present invention is that it can be easily manufactured in a short time as a press mold when a small amount of a new-shaped press product (press-processed product) must be manufactured within a short delivery time. It is the most suitable invention for the manufacturing site.

本発明の実施の一形態を示す斜視図である。It is a perspective view which shows one Embodiment of this invention. 鋼板作成工程を示す斜視図である。It is a perspective view which shows a steel plate creation process. 鋼板積層工程を示す斜視図である。It is a perspective view which shows a steel plate lamination process. 鋼板一体化工程を示す斜視図である。It is a perspective view which shows a steel plate integration process. 仕上げ工程を示す斜視図である。It is a perspective view which shows a finishing process. 本発明の他の実施形態を示す縦断面図である。It is a longitudinal cross-sectional view which shows other embodiment of this invention. 従来のプレス用金型を示す斜視図である。It is a perspective view which shows the conventional metal mold | die for press.

以下、実施の形態を示す図面に基づき本発明を詳説する。
本発明のプレス用金型は、図１に示すように、雄型１と雌型２の夫々が、所定形状の複数枚の鋼板５，５を、積層一体化して、ブロック状に構成したものである。 Hereinafter, the present invention will be described in detail with reference to the drawings illustrating embodiments.
As shown in FIG. 1, the press mold of the present invention is configured such that a male mold 1 and a female mold 2 are formed by integrating a plurality of steel plates 5 and 5 having a predetermined shape into a block shape. It is.

先ず、雄型１の構成を製作方法と共に説明する。
製作すべき雄型１は、横断面形状が一定となるように設定している。
図２に示すように、金属製板素材をプレス機で、所定形状に打ち抜いて、鋼板５（雄型用鋼板５Ａ）を形成する。
所定形状に打ち抜くとは、製作すべき雄型１の横断面の輪郭形状（外縁形状）をもつように形成することである。また、打ち抜きの際に、鋼板５に、複数の位置決め用の貫孔７，７を所定位置に貫設する。プレス加工機による打ち抜きで、所定の同一形状の鋼板５を複数枚作成する（鋼板作成工程）。なお、図２においては、１枚の金属板素材から１枚の鋼板５を打ち抜いた場合を図示しているが、１枚の金属板素材から複数枚の鋼板５を打ち抜いて作成しても良い。 First, the configuration of the male mold 1 will be described together with the manufacturing method.
The male mold 1 to be manufactured is set so that the cross-sectional shape is constant.
As shown in FIG. 2, a metal plate material is punched into a predetermined shape with a press machine to form a steel plate 5 (male steel plate 5A).
Punching into a predetermined shape means forming with a contour shape (outer edge shape) of the cross section of the male mold 1 to be manufactured. Further, at the time of punching, a plurality of positioning through holes 7 and 7 are provided in a predetermined position in the steel plate 5. A plurality of steel plates 5 having the same shape are created by punching with a press machine (steel plate making process). In addition, in FIG. 2, the case where the one steel plate 5 is punched from one metal plate material is illustrated, but a plurality of steel plates 5 may be punched from one metal plate material. .

図３に示すように、鋼板５の各貫孔７，７に、複数本の金属製丸棒状の位置決めピン３を、夫々、挿通させて、鋼板５を位置決めしつつ、鋼板５の厚み方向に、複数枚、積層状に配設する（鋼板積層工程）。
なお、複数枚の鋼板５，５を積層状に配設後に、丸棒状の位置決めピン３を貫孔７に挿通させて、位置決めを行っても良い。
ここで、積層状に配設する方向（積層方向）Ｎは、雄型１と雌型２がプレス加工の際に相互に接近離間する金型作動方向Ｙ（図１参照）に対して、直交する縦方向（長手方向）Ｎである。 As shown in FIG. 3, a plurality of metal round bar-shaped positioning pins 3 are inserted into the through holes 7, 7 of the steel plate 5 to position the steel plate 5 in the thickness direction of the steel plate 5. A plurality of sheets are arranged in a laminated form (steel sheet lamination process).
In addition, after arrange | positioning the several steel plates 5 and 5 in a laminated form, you may insert the round pin-shaped positioning pin 3 in the through-hole 7, and may perform positioning.
Here, the direction (stacking direction) N arranged in a layered shape is orthogonal to the mold operating direction Y (see FIG. 1) in which the male mold 1 and the female mold 2 approach and separate from each other during pressing. The vertical direction (longitudinal direction) N.

図４に示すように、積層状に配設した複数枚の鋼板５，５に複数本の位置決めピン３，３が串刺し状に挿通している鋼板積層体６に、積層方向（位置決めピン軸心方向）Ｎに沿って溶接して溶接部４を形成し、この溶接部４にて鋼板５，５同士を固着一体化して、ブロック状に構成する（鋼板一体化工程）。この積層方向Ｎに沿った一直線状の溶接部４を、複数条（本）形成する。
また、位置決めピン３の端部と、鋼板積層体６の端面を形成する鋼板５と、を溶接して固着し、位置決めピン３の抜けを防止する抜け止め部10を形成する（抜け止め工程）。なお、鋼板一体化工程と抜け止め工程はどちらを先に行っても良い。 As shown in FIG. 4, a stacking direction (positioning pin axis center) is provided in a steel plate laminate 6 in which a plurality of positioning pins 3 and 3 are inserted into a plurality of steel plates 5 and 5 arranged in a stack. The welded portion 4 is formed by welding along (direction) N, and the steel plates 5 and 5 are fixedly integrated with each other at the welded portion 4 to form a block shape (steel plate integrating step). A plurality of strips (books) are formed in a straight line along the stacking direction N.
Further, the end portion of the positioning pin 3 and the steel plate 5 forming the end surface of the steel plate laminate 6 are welded and fixed to form a retaining portion 10 that prevents the positioning pin 3 from coming off (a retaining step). . Note that either the steel plate integration step or the retaining step may be performed first.

図５に示すように、鋼板積層体６に形成した複数の溶接部４，４の内、プレス製品を形成するための成形面11に設けた溶接部４（４Ａ）を、リュータやグラインダ等の研削工具（手動電動工具）で、成形面11に沿うように滑らかに研削して、図１に示すような雄型１に仕上げる（仕上げ工程）。なお、仕上げ工程において、プレス機の上盤や下盤からの押圧力を受ける押圧受け面に、溶接部４を形成した場合は、その溶接部４も研削する。
製作した雄型１は、積層状に配設される複数枚の鋼板５，５と、複数枚の鋼板５，５を串刺し状に挿通する複数本の位置決めピン３，３と、複数枚の鋼板５，５を一体化するための複数の溶接部４，４と、位置決めピン３の抜けを防止するための抜け止め部10と、を備えている。 As shown in FIG. 5, among the plurality of welded portions 4 and 4 formed on the steel sheet laminate 6, the welded portion 4 (4A) provided on the forming surface 11 for forming a press product is replaced with a router, grinder, or the like. grinding tool (manual electric tool), smooth grinding to along the molding surface 11, finished the male 1 as shown in FIG. 1 (finishing step). In addition, in the finishing process, when the welding part 4 is formed in the pressure receiving surface which receives the pressing force from the upper board and lower board of a press machine, the welding part 4 is also ground.
The produced male mold 1 includes a plurality of steel plates 5 and 5 arranged in a stacked manner, a plurality of positioning pins 3 and 3 through which a plurality of steel plates 5 and 5 are skewered, and a plurality of steel plates. 5 and 5, and a plurality of welded portions 4 and 4, and a retaining portion 10 for preventing the positioning pin 3 from coming off.

図１に示すように、雌型２は、（雄型１と同様に、）積層状に配設される複数枚の鋼板５，５と、複数枚の鋼板５，５を串刺し状に挿通する複数本の位置決めピン３，３と、複数枚の鋼板５，５を一体化するための複数の溶接部４，４と、位置決めピン３の抜けを防止するための抜け止め部10と、を備えている。
製作方法は、雌型２の横断面形状が一定となるように設定する。図示省略するが、金属製板素材から製作すべき雌型２の横断面輪郭形状に打ち抜くと共に貫孔７を打ち抜いた鋼板５（雌型用鋼板５Ｂ）を、複数枚作成する。所定の同一形状に形成された複数枚の鋼板５が積層状に配設すると共に複数枚の鋼板５，５の各貫孔７，７に複数本の位置決めピン３，３が夫々挿通して鋼板５が位置決めされた鋼板積層体６を形成する。
そして、鋼板積層体６を溶接部４にて一体化すると共に抜け止め部10にて位置決めピン３の抜け（脱落）を防止して、ブロック状に構成し、成形面11の溶接部４（４Ａ）を研削して仕上げる。 As shown in FIG. 1, the female mold 2 is inserted into a plurality of steel plates 5 and 5 and a plurality of steel plates 5 and 5 in a skewered manner (similarly to the male mold 1). A plurality of positioning pins 3, 3, a plurality of welding portions 4, 4 for integrating the plurality of steel plates 5, 5, and a retaining portion 10 for preventing the positioning pin 3 from coming off. ing.
The manufacturing method is set so that the cross-sectional shape of the female mold 2 is constant. Although not shown in the drawings, a plurality of steel plates 5 (female steel plates 5B) are formed by punching the female die 2 to be manufactured from a metal plate material into a cross-sectional contour shape and punching through holes 7. A plurality of steel plates 5 formed in a predetermined same shape are arranged in a laminated manner, and a plurality of positioning pins 3 and 3 are inserted into the through holes 7 and 7 of the plurality of steel plates 5 and 5, respectively. The steel plate laminated body 6 in which 5 is positioned is formed.
Then, the steel sheet laminate 6 is integrated at the welded portion 4 and the positioning pin 3 is prevented from coming off (dropped off) at the retaining portion 10 to form a block shape, and the welded portion 4 (4A) of the molding surface 11 is formed. ) To finish.

また、鋼板５（雄型用鋼板５Ａ及び雌型用鋼板５Ｂ）は、厚さが１．６ｍｍ以上３．２ｍｍ以下のものが好ましい。下限値未満であるとプレス加工に耐え得る十分な強度が得られない虞れがあり、上限値を越えると、鋼板製作用プレス機を大型にする必要がある。   The steel plate 5 (the male steel plate 5A and the female steel plate 5B) preferably has a thickness of 1.6 mm or more and 3.2 mm or less. If it is less than the lower limit, there is a possibility that sufficient strength that can withstand the press work may not be obtained, and if it exceeds the upper limit, it is necessary to enlarge the steel plate working press.

次に、図６に縦断面で示す他の実施形態は、雄型１及び雌型２の横断面形状を非一定（不定）に設けたものである。非同一形状に形成される（輪郭形状の異なる）複数種類の鋼板５を作成する。種類毎に同一形状となる鋼板５を複数枚形成する。そして、複数枚の鋼板５を所定の順番で積層状に配設して鋼板積層体６を形成して一体化し、ブロック状としたものである。他の構成は上述の実施形態と同様である。 Next, in another embodiment shown in a longitudinal section in FIG. 6, the cross-sectional shapes of the male mold 1 and the female mold 2 are provided non-constantly (indefinitely). A plurality of types of steel plates 5 formed in non-identical shapes (different contour shapes) are created. A plurality of steel plates 5 having the same shape for each type are formed. A plurality of steel plates 5 are arranged in a laminated order in a predetermined order to form a steel plate laminate 6 and integrated into a block shape. Other configurations are the same as those of the above-described embodiment .

なお、本発明は、設計変更可能であって、位置決めピン３は、２本以上であっても良い。雄型１及び雌型２の形状は、図示以外の形状も自由である。 Your name, the present invention relates to a possible design changes, much-decided Me pin 3, may be two or more. The shapes of the male mold 1 and the female mold 2 may be any shape other than that illustrated.

以上のように、本発明に係るプレス用金型は、雄型１と雌型２の夫々が、所定形状に打ち抜かれた複数枚の鋼板５を、積層一体化して、ブロック状に構成されているので、金属ブロックから削り出しによって、或いは、複雑な切削機械加工部品の組み合わせによって、作成した従来の金型に比べて、容易かつ短時間で金型を作成できる。プレス成型品を加工するための金型を、低コストで迅速に作成でき、型製作費（型償却費）を大幅に低減できる。特に、多品種少量生産用のプレス成型品を（短い納期内で）製造するための金型として好適である。また、高性能な切削工作機や放電加工機等の高価な機械工作設備がなくてもプレス用金型を作成できる。   As described above, the pressing die according to the present invention is configured in a block shape by laminating and integrating a plurality of steel plates 5 each of which is punched into a predetermined shape, each of a male die 1 and a female die 2. Therefore, it is possible to create a mold easily and in a short time by cutting out from a metal block or by combining complicated cutting machined parts. A die for processing a press-molded product can be quickly created at a low cost, and the die production cost (die depreciation cost) can be greatly reduced. In particular, it is suitable as a mold for producing a press-molded product for producing a variety of products in small quantities (within a short delivery time). In addition, a press die can be created without expensive machine tools such as high-performance cutting machines and electric discharge machines.

また、雄型１と雌型２の夫々が、所定形状に打ち抜かれた複数枚の鋼板５を積層状とし、複数枚の鋼板５に挿通される位置決めピン３を有し、かつ、複数枚の鋼板５を溶接部４にて一体化して、ブロック状に構成されているので、従来の金型に比べて、容易かつ短時間で金型を作成できる。プレス成型品を加工するための金型を、低コストで迅速に作成でき、型製作費（型償却費）を大幅に低減できる。特に、多品種少量生産用のプレス成型品を製造するための金型として好適である。また、高性能な切削工作機や放電加工機等の高価な機械工作設備がなくてもプレス用金型を作成できる。複数枚の鋼板５を正確かつスムーズに積層状に配設できる。接着剤や塑性加工による一体化に比べて迅速に固着（一体化）でき、金型製作期間を短縮できる。   Each of the male mold 1 and the female mold 2 has a plurality of steel plates 5 punched into a predetermined shape, has a positioning pin 3 inserted through the plurality of steel plates 5, and has a plurality of sheets. Since the steel plate 5 is integrated at the welded portion 4 and configured in a block shape, the mold can be created easily and in a shorter time than a conventional mold. A die for processing a press-molded product can be quickly created at a low cost, and the die production cost (die depreciation cost) can be greatly reduced. In particular, it is suitable as a mold for producing press-molded products for high-mix low-volume production. In addition, a press die can be created without expensive machine tools such as high-performance cutting machines and electric discharge machines. A plurality of steel plates 5 can be arranged accurately and smoothly in a laminated form. Compared to the integration by adhesive or plastic working, it can be fixed (integrated) quickly, and the mold production period can be shortened.

また、雄型１と雌型２は、横断面形状が一定となるよう設定され、複数枚の鋼板５が、所定の同一形状に形成されているので、迅速に効率良く鋼板５を低コストで作成できる。雄型１及び雌型２でプレス加工を行う際に、応力集中が発生しにくく、鋼板５，５同士の剥がれや離間を防止でき、耐久性を向上できる。鋼板積層工程や鋼板一体化工程を容易かつ迅速に行うことができる。   Further, since the male mold 1 and the female mold 2 are set so that the cross-sectional shape is constant, and the plurality of steel plates 5 are formed in the same predetermined shape, the steel plates 5 can be quickly and efficiently produced at low cost. Can be created. When pressing with the male mold 1 and the female mold 2, stress concentration is less likely to occur, the peeling and separation of the steel plates 5, 5 can be prevented, and durability can be improved. The steel plate lamination step and the steel plate integration step can be performed easily and quickly.

１ 雄型
２ 雌型
３ 位置決めピン
４ 溶接部
５ 鋼板
６ 鋼板積層体
10 抜け止め部
11 成形面
Ｎ 積層方向 DESCRIPTION OF SYMBOLS 1 Male type 2 Female type 3 Positioning pin 4 Welding part 5 Steel plate
6 steel plate laminate
10 Retaining part
11 Molding surface
N stacking direction

Claims (1)

雄型（１）と雌型（２）の夫々が、所定形状に打ち抜かれた複数枚の鋼板（５）を積層状とした鋼板積層体（６）と、該鋼板積層体（６）に串差し状に挿通する位置決めピン（３）と、上記鋼板積層体（６）の端面と上記位置決めピン（３）の端部とが溶接にて固着されて形成された抜け止め部（10）と、上記鋼板積層体（６）の積層方向（Ｎ）に沿って上記鋼板（５）（５）同士を固着一体化した線状の溶接部（４）と、を有し、
さらに、上記鋼板積層体（６）はプレス製品を形成するための成形面（11）を有し、該成形面（11）に上記溶接部（４）が設けられ、
上記成形面（11）に設けられた上記溶接部（４）は、上記成形面（11）に沿うように研削仕上げされ、
上記雄型（１）と上記雌型（２）の夫々がブロック状に構成されていることを特徴とするプレス用金型。 Each of the male mold (1) and the female mold (2) includes a steel plate laminate (6) in which a plurality of steel plates (5) punched into a predetermined shape are laminated, and a skewer on the steel plate laminate (6). A positioning pin (3) to be inserted in an insertion shape, a retaining portion (10) formed by welding and fixing the end surface of the steel sheet laminate (6) and the end of the positioning pin (3); A linear welded portion (4) in which the steel plates (5) and (5) are fixedly integrated with each other along the lamination direction (N) of the steel plate laminate (6), and
Furthermore, the steel sheet laminate (6) has a molding surface (11) for forming a pressed product, and the welding surface (4) is provided on the molding surface (11),
The weld (4) provided on the molding surface (11) is ground and finished along the molding surface (11),
Each of the male mold (1) and the female mold (2) is configured in a block shape.
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