JP2021020236A5 - - Google Patents

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JP2021020236A5
JP2021020236A5 JP2019137771A JP2019137771A JP2021020236A5 JP 2021020236 A5 JP2021020236 A5 JP 2021020236A5 JP 2019137771 A JP2019137771 A JP 2019137771A JP 2019137771 A JP2019137771 A JP 2019137771A JP 2021020236 A5 JP2021020236 A5 JP 2021020236A5
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Prior art keywords
die
metal plate
plate material
raised
recessed
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JP2019137771A
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JP2021020236A (en
JP7221531B2 (en
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Priority to JP2019137771A priority Critical patent/JP7221531B2/en
Priority claimed from JP2019137771A external-priority patent/JP7221531B2/en
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Publication of JP2021020236A5 publication Critical patent/JP2021020236A5/ja
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Claims (3)

凹部を有するダイ、凸部を有するパンチ、該凹部の輪郭に一致する形状の貫通口を有し且つ該ダイと該パンチとの間に配される第１部材を備え、該ダイ及び該第１部材の間に配された金属製の板材に対して、該凸部を該貫通口及び該凹部に挿通してプレス成形する成形金型であって、
前記第１部材は、前記貫通口の周縁部に前記凸部よりも低く隆起する隆起部を有し、
前記ダイは、前記隆起部に嵌合し且つ前記凹部よりも浅く窪んだ凹陥部を該凹部の周縁部に有し、
前記成形金型は、前記隆起部及び前記凹陥部から外方に、前記第１部材と前記ダイとの間隔を、前記金属製の板材の厚み以上に調整する第２部材を有している、成形金型。 A die having a concave portion, a punch having a convex portion, a first member having a through hole having a shape matching the contour of the concave portion and being arranged between the die and the punch, the die and the first member. A molding die for press-molding a metal plate material arranged between members by inserting the convex portion into the through hole and the concave portion.
The first member has a raised portion on the peripheral edge portion of the through port, which is raised lower than the convex portion.
The die has a recessed portion that is fitted to the raised portion and is recessed shallower than the recessed portion on the peripheral edge portion of the recessed portion.
The molding die has a second member outward from the raised portion and the recessed portion, which adjusts the distance between the first member and the die to be equal to or larger than the thickness of the metal plate material. Molding mold. 前記金属製の板材を前記ダイと前記第１部材とで挟んだときに、前記第２部材によって該第１部材と該ダイとの間の距離を該金属製の板材の厚み以上に調整しつつ、前記凹陥部と前記隆起部とを嵌合させ該金属製の板材を変形させて該金属製の板材の周縁部に仮屈曲部を形成するようになされており、When the metal plate is sandwiched between the die and the first member, the second member adjusts the distance between the first member and the die to be equal to or greater than the thickness of the metal plate. The concave portion and the raised portion are fitted to each other to deform the metal plate material to form a temporary bent portion on the peripheral edge portion of the metal plate material.
前記凸部を前記貫通口及び前記凹部に挿通して前記金属製の板材をプレス成形するときには、先ず前記隆起部に前記仮屈曲部を係合させ、該金属製の板材における該仮屈曲部から外方部分の前記凹部側への移動を防ぎながらプレス成形するようになされており、When the convex portion is inserted into the through hole and the concave portion to press-mold the metal plate material, the temporary bending portion is first engaged with the raised portion, and the temporary bending portion in the metal plate material is used. It is designed to be press-molded while preventing the outer part from moving to the concave portion side.
その後、前記凹陥部よりも深くプレス成形するときには、前記仮屈曲部を延ばしながら前記隆起部から内方に前記金属製の板材の周縁部を越えさせ、該周縁部を前記凹部内に流入させつつプレス成形するようになされている、請求項１に記載の成形金型。After that, when press-molding deeper than the recessed portion, the temporary bent portion is extended and the peripheral edge portion of the metal plate material is made to pass inward from the raised portion, and the peripheral edge portion is allowed to flow into the recessed portion. The molding die according to claim 1, which is designed to be press-molded. 凹部を有するダイ、凸部を有するパンチ、該凹部の輪郭に一致する形状の貫通口を有し且つ該ダイと該パンチとの間に配される第１部材を備え、
前記第１部材は、前記貫通口の周縁部に前記凸部よりも低く隆起する隆起部を有し、
前記ダイは、前記隆起部に嵌合し且つ前記凹部よりも浅く窪んだ凹陥部を該凹部の周縁部に有し、
前記隆起部及び前記凹陥部から外方に、前記第１部材と前記ダイとの間の距離を調整する第２部材を有する成形金型を用いるプレス成形方法であって、
金属製の板材を前記ダイと前記第１部材とで挟んだときに、前記第２部材によって該第１部材と該ダイとの間の距離を該金属製の板材の厚み以上に調整しつつ、前記凹陥部と前記隆起部とを嵌合させ該金属製の板材を変形させて該金属製の板材の周縁部に仮屈曲部を形成する工程と、
前記凸部を前記貫通口及び前記凹部に挿通して前記金属製の板材をプレス成形するときには、先ず前記隆起部に前記仮屈曲部を係合させ、該金属製の板材における該仮屈曲部から外方部分の前記凹部側への移動を防ぎながらプレス成形し、
その後、前記凹陥部よりも深くプレス成形するときには、前記仮屈曲部を延ばしながら前記隆起部から内方に前記金属製の板材の周縁部を越えさせ、該周縁部を前記凹部内に流入させつつプレス成形する工程とを備える、プレス成形方法。 A die having a concave portion, a punch having a convex portion, and a first member having a through hole having a shape matching the contour of the concave portion and arranged between the die and the punch.
The first member has a raised portion on the peripheral edge portion of the through port, which is raised lower than the convex portion.
The die has a recessed portion that is fitted to the raised portion and is recessed shallower than the recessed portion on the peripheral edge portion of the recessed portion.
A press molding method using a molding die having a second member for adjusting the distance between the first member and the die outward from the raised portion and the recessed portion.
When the metal plate is sandwiched between the die and the first member, the second member adjusts the distance between the first member and the die to be equal to or greater than the thickness of the metal plate. A step of fitting the recessed portion and the raised portion and deforming the metal plate material to form a temporary bent portion on the peripheral edge portion of the metal plate material.
When the convex portion is inserted into the through hole and the concave portion to press-mold the metal plate material, the temporary bending portion is first engaged with the raised portion, and the temporary bending portion in the metal plate material is used. Press-mold while preventing the outer part from moving to the concave side,
After that, when press-molding deeper than the recessed portion, the temporary bent portion is extended and the peripheral edge portion of the metal plate material is made to pass inward from the raised portion, and the peripheral edge portion is allowed to flow into the recessed portion. A press molding method including a press molding process.
JP2019137771A 2019-07-26 2019-07-26 Molding die and press molding method using the same Active JP7221531B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2019137771A JP7221531B2 (en) 2019-07-26 2019-07-26 Molding die and press molding method using the same

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Application Number Priority Date Filing Date Title
JP2019137771A JP7221531B2 (en) 2019-07-26 2019-07-26 Molding die and press molding method using the same

Publications (3)

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JP2021020236A JP2021020236A (en) 2021-02-18
JP2021020236A5 true JP2021020236A5 (en) 2021-11-18
JP7221531B2 JP7221531B2 (en) 2023-02-14

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Publication number Priority date Publication date Assignee Title
CN115647212A (en) * 2022-12-08 2023-01-31 宁波宏协承汽车部件有限公司 Stretching die

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JP3295179B2 (en) * 1993-05-27 2002-06-24 本田技研工業株式会社 Drawing method of Al-based blank
JPH07230762A (en) * 1994-02-16 1995-08-29 Matsushita Electric Ind Co Ltd Box-shaped part molding metal die device and molding method
KR102028068B1 (en) * 2014-12-25 2019-10-02 닛폰세이테츠 가부시키가이샤 Manufacturing Method of Panel Shaped Product
RU2702671C1 (en) * 2015-09-18 2019-10-09 Ниппон Стил Корпорейшн Panel-like molded article and method of its production
JP7113624B2 (en) * 2018-01-11 2022-08-05 株式会社神戸製鋼所 Press molding equipment

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