JP2013220444A - Press forming method - Google Patents

Press forming method Download PDF

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JP2013220444A
JP2013220444A JP2012093475A JP2012093475A JP2013220444A JP 2013220444 A JP2013220444 A JP 2013220444A JP 2012093475 A JP2012093475 A JP 2012093475A JP 2012093475 A JP2012093475 A JP 2012093475A JP 2013220444 A JP2013220444 A JP 2013220444A
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oil supply
molding method
press molding
supply material
mold
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Shuji Fuji
寿人 藤
Kenichi Nakamura
憲一 中村
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Hitachi Appliances Inc
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Hitachi Appliances Inc
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  • Shaping Metal By Deep-Drawing, Or The Like (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a press forming method by which an edge caused by drilling is not in contact with a formed body so as to improve reliability.SOLUTION: In a press forming method which forms a formed article by holding the formed article arranged in between by an upper die and a lower die, the upper die and the lower die include a plurality of oil supply members arranged on a formed article side when the formed article is held. The upper die and the lower die include internal flow channels for flowing lubricant inside. When the lubricant flowing in the internal flow channels flows out to the formed article side through the oil supply members, the formed article, the upper die, and the lower die are lubricated.

Description

本発明はプレス成形方法に関し、特に絞り形状の成形における金型への潤滑油供給構造に関する。   The present invention relates to a press molding method, and more particularly to a structure for supplying a lubricating oil to a mold in forming a drawn shape.

本技術分野の背景技術として、特開平4−371323号公報(特許文献1)がある。この公報には、「ドロー金型のパンチ部材の表面に同じ素材で形成した給油ノズルを埋設し、この給油ノズルに、プレス加工の際成形品にデフォームが生じない程度の小径の潤滑油吐出口を多数穿設して、これらの吐出口から吐出させた潤滑油によりパンチ部材表面の必要とする部分を潤滑するようにしたもの」と記載されている。   As background art of this technical field, there is JP-A-4-371323 (Patent Document 1). This publication states that “a lubrication nozzle made of the same material is embedded on the surface of a punch member of a draw mold, and the lubrication nozzle has a small diameter that does not cause deformation in the molded product during pressing. A number of outlets are perforated, and a necessary part of the surface of the punch member is lubricated by the lubricating oil discharged from these discharge ports.

特開平4−371323号公報JP-A-4-371323

上記特許文献によると、金型そのものに給油のための孔をあけている。この孔の径は、成形品にデフォームが生じない程度とされているが、小径でかつ深孔の加工となることから、金型製作費が増大することが容易に推察される。一般的に孔加工における直径をd、深さをLとすると、L/d≧30の場合では工具が破損しやすいことが知られており、孔の数が多い場合では、特許文献の内容を実現するためには、折損しにくい高価な専用工具などを用いる必要がある。   According to the said patent document, the hole for oil supply is made in the metal mold | die itself. The diameter of the hole is such that no deformation occurs in the molded product, but since it is a small diameter and deep hole processing, it is easily guessed that the mold manufacturing cost increases. In general, it is known that when the diameter in drilling is d and the depth is L, the tool is likely to be damaged when L / d ≧ 30. In order to achieve this, it is necessary to use an expensive dedicated tool that is difficult to break.

また特許文献では、図2に示すように金型部材19に潤滑油吐出口20を形成する際に曲面に丸孔を加工するため、孔あけにより生じたエッジ21が被成形体に接触し、キズが発生する可能性もあり、実現が困難と考えられる。   Further, in the patent document, as shown in FIG. 2, when the lubricating oil discharge port 20 is formed in the mold member 19, a round hole is processed into a curved surface, so that the edge 21 generated by the drilling comes into contact with the object to be molded, Scratches may occur and it is considered difficult to realize.

そこで本発明は、上記したような孔あけによるエッジが被成形体に接触することがなく、信頼性を向上させることができるプレス成形方法を提供することを目的とする。   Accordingly, an object of the present invention is to provide a press molding method capable of improving the reliability without causing the edge formed by the above-described drilling to contact the workpiece.

上記課題を解決するために、例えば特許請求の範囲に記載の構成を採用する。
本願は上記課題を解決する手段を複数含んでいるが、その一例を挙げるならば、「上金型と下金型とにより間に配置された被成形物を挟み込むことにより該被成形物を成形するプレス成形方法において、前記上金型又は前記下金型は、前記被成形物を挟み込んだ際の該被成形物側に配置される油供給材を複数備え、前記上金型又は前記下金型には、内部に潤滑油を流すための内部流路が形成され、該内部流路を流れた潤滑油が前記油供給材を介して前記被成形物側に流れ出ることにより、該被成形物、前記上金型及び前記下金型の潤滑を行うこと」を特徴とする。
In order to solve the above problems, for example, the configuration described in the claims is adopted.
The present application includes a plurality of means for solving the above-described problems. For example, “the molding is formed by sandwiching the molding placed between the upper mold and the lower mold. In the press molding method, the upper mold or the lower mold includes a plurality of oil supply materials disposed on the molding side when the molding is sandwiched, and the upper mold or the lower mold The mold has an internal flow path for flowing lubricating oil therein, and the lubricating oil that has flowed through the internal flow path flows out to the molded object side through the oil supply material, whereby the molded object. The upper mold and the lower mold are lubricated ”.

本発明によれば、孔あけによるエッジが被成形体に接触することがなく、信頼性を向上させることができるプレス成形方法を提供することができる。上記した以外の課題、構成及び効果は、以下の実施形態の説明により明らかにされる。   ADVANTAGE OF THE INVENTION According to this invention, the edge by punching does not contact a to-be-molded body, and the press molding method which can improve reliability can be provided. Problems, configurations, and effects other than those described above will be clarified by the following description of embodiments.

ノズルを用いて潤滑油をプレス金型に噴霧する状態を説明するための図である。It is a figure for demonstrating the state which sprays lubricating oil on a press metal mold | die using a nozzle. 従来技術の潤滑油吐出口を説明する図である。It is a figure explaining the lubricating oil discharge port of a prior art. 本実施例の成形前の金型および被成形物の断面図の一例である。It is an example of sectional drawing of the metal mold | die before a shaping | molding of a present Example, and a to-be-molded object. 本実施例の成形後の金型および被成形物の断面図の一例である。It is an example of sectional drawing of the metal mold | die after a shaping | molding of a present Example, and a to-be-molded object. 最も潤滑が必要なコーナーRに油供給材を配置させた構造の一例である。It is an example of the structure which has arrange | positioned the oil supply material to the corner R which needs lubrication most. 油供給材の一例である。It is an example of an oil supply material. 油供給材の特徴の一例である。It is an example of the characteristic of an oil supply material. 油供給材の取り付け状態を示す図である。It is a figure which shows the attachment state of an oil supply material.

以下、本発明の実施例について図面を用いて説明する。
〔実施例〕
図1はノズルを用いて潤滑油をプレス金型に噴霧する状態を説明するための図である。図1のプレス機は上金型1と下金型2から構成されるプレス金型を備え、これらの間に被成形体が配置され、上金型1と下金型2とで挟み込むことにより、被成形体を成形する。またプレス機はプレス機のスライド3、ボルスター4、上型ベース5、下型ベース6、ダイ7、ダイホルダ8、板押さえ9、スプリング10、ノズル11、ポンプに接続された油供給管12、油供給管固定部13を備えて構成される。
Embodiments of the present invention will be described below with reference to the drawings.
〔Example〕
FIG. 1 is a view for explaining a state in which lubricating oil is sprayed onto a press mold using a nozzle. The press machine shown in FIG. 1 includes a press die composed of an upper die 1 and a lower die 2, and an object to be molded is disposed between them, and is sandwiched between the upper die 1 and the lower die 2. A molded object is formed. The press machine includes a slide 3 of the press machine, a bolster 4, an upper mold base 5, a lower mold base 6, a die 7, a die holder 8, a plate retainer 9, a spring 10, a nozzle 11, an oil supply pipe 12 connected to a pump, an oil A supply pipe fixing portion 13 is provided.

一般的にプレス金型を用いた絞り成形で、特に成形後の形状が複雑である場合、被成形体である板金に割れやひびの発生や、また経時的に金型の磨耗が激しくなるといった問題が生じる。これらの現象を防止するために、図1においては金型の外に設置したノズル11から潤滑油14を金型表面に向かって噴霧し、ワークと金型の摩擦力を軽減している。プレス金型の中でも凹凸を成形する絞り成形金型では、成形時においてコーナーR15部分に成形に伴う反力が掛かるので、成形性を向上させるためには、コーナーR15部分への潤滑油14の塗布が必要となる。   In general, drawing with a press die, especially when the shape after molding is complex, the metal plate, which is the molded body, is cracked and cracked, and the die wears over time. Problems arise. In order to prevent these phenomena, in FIG. 1, the lubricating oil 14 is sprayed from the nozzle 11 installed outside the mold toward the mold surface to reduce the frictional force between the workpiece and the mold. Among the press molds, in the drawing mold for forming irregularities, the reaction force accompanying the molding is applied to the corner R15 portion at the time of molding. Therefore, in order to improve the moldability, the lubricating oil 14 is applied to the corner R15 portion. Is required.

しかし、上金型1と下金型2との間の移動時におけるワーク(被成形体)のノズル11への干渉や、ブランク材のダイホルダ8に潤滑油が付着することによる成形時の引張りバランスの不均一が生じる。さらに、潤滑油は目的の部位以外へも飛散するので、潤滑油のムダや浮遊した油滴による作業環境の悪化が生じる。また凹部のコーナーR15への噴霧、もしくは噴霧距離が長い場合、目的の部位に潤滑油の塗布ができないなどの問題も発生する。図1において16は潤滑油を塗布できない部位を示し、17は潤滑油を無駄に塗布する部位を示している。そこで、以下においてはこれらの問題を解消するための本実施例の構成について説明する。   However, the tension balance at the time of molding due to the interference between the workpiece (molded body) on the nozzle 11 during the movement between the upper mold 1 and the lower mold 2 and the adhesion of lubricant to the die holder 8 of the blank material. Non-uniformity occurs. Furthermore, since the lubricating oil scatters to other than the target portion, the working environment is deteriorated due to the waste of the lubricating oil and the floating oil droplets. Further, when the spray to the corner R15 of the recess or the spray distance is long, there is a problem that the lubricating oil cannot be applied to the target portion. In FIG. 1, reference numeral 16 denotes a portion where the lubricating oil cannot be applied, and reference numeral 17 denotes a portion where the lubricating oil is applied wastefully. Therefore, the configuration of this embodiment for solving these problems will be described below.

図3、図4は本実施例のプレス金型の構成を示す図であり、これらを用いてプレス金型の手順を説明する。   3 and 4 are diagrams showing the configuration of the press die of the present embodiment, and the procedure of the press die will be described using these.

図3は、成形前の金型および被成形物の断面図を示しており、図4は成形後の金型および被成形物の断面図を示す図である。まず図3に示すように、上部の上金型1と、該上金型1より下部に配置される下金型2との間に被成形物22の薄板板金(一般的には0.5〜6t)を配置する。その後、図4に示すように前記上金型1と前記下金型2同士とで被成形物22を挟み込むことにより、被成形物22を目的の形状に成形する。ここで、本実施例では上金型1および下金型2にそれぞれ潤滑油を供給するための内部流路23を設けてあり、この流路から目的の箇所に油を供給するための吐出口は油供給材24を用いて形成される。   FIG. 3 is a cross-sectional view of the mold and the molding before molding, and FIG. 4 is a cross-sectional view of the mold and the molding after molding. First, as shown in FIG. 3, a thin sheet metal (generally 0.5) is formed between the upper upper mold 1 and the lower mold 2 disposed below the upper mold 1. ~ 6t). Thereafter, as shown in FIG. 4, the molding 22 is molded into a desired shape by sandwiching the molding 22 between the upper mold 1 and the lower mold 2. Here, in this embodiment, an internal flow path 23 for supplying lubricating oil to the upper mold 1 and the lower mold 2 is provided, and a discharge port for supplying oil from the flow path to a target location. Is formed using an oil supply 24.

内部流路23は、油を供給するための図3、図4で図示しない圧送装置(例えば、容積型ポンプ18)と接続されており、プレス機と連動させることにより、金型のストロークとリンクして、1回の上下で1回吐出させる仕組みとなっている。また、容積型ポンプ18と油供給材24との間に電磁弁をセットし、電気的に給油口を開閉する機構となっている。内部流路23は、加工性を考慮し、汎用の切削工具で加工可能である大きさであることが望ましい。   The internal flow path 23 is connected to a pumping device (for example, a positive displacement pump 18) (not shown in FIG. 3 and FIG. 4) for supplying oil, and is linked to the stroke of the mold by interlocking with the press machine. And it has the mechanism of discharging once at the top and bottom of one time. In addition, an electromagnetic valve is set between the positive displacement pump 18 and the oil supply member 24 to electrically open and close the oil filler opening. It is desirable that the internal flow path 23 has a size that can be processed with a general-purpose cutting tool in consideration of workability.

油供給材24は、成形性を考慮して円柱形であり、材質は多孔質性樹脂(例えばウレタンフォーム)を用いる。または開口率5〜80%の焼結金属を使用することも可能である。このとき、金型の形状によっては円柱形だけではなく、角柱等の形状を用いることも可能であることは言うまでもない。締め付けが無くても、焼結金属が金型から離脱しないように、多孔質材の場合、油供給材の径の公差を−0.1〜0mm、設置孔の公差を+0.1〜+0.2mm、焼結金属の場合、油供給材の径の公差を±0.01mm、設置孔の公差を+0.01〜+0.03mmで加工する。   The oil supply member 24 has a cylindrical shape in consideration of moldability, and a porous resin (for example, urethane foam) is used as the material. Alternatively, a sintered metal having an opening ratio of 5 to 80% can be used. At this time, it is needless to say that not only a cylindrical shape but also a shape such as a prism can be used depending on the shape of the mold. In the case of a porous material, the tolerance of the diameter of the oil supply material is -0.1 to 0 mm and the tolerance of the installation hole is +0.1 to +0.0. In the case of 2 mm and sintered metal, the tolerance of the diameter of the oil supply material is processed to ± 0.01 mm, and the tolerance of the installation hole is processed to +0.01 to +0.03 mm.

最も潤滑が必要なコーナーR(15)に油供給材24を配置させた構造について図5を用いて説明する。油供給材24の材質が焼結金属であり、かつ油供給材自体で成形を行っても、油供給材の変形・破損しない程度の剛性を確保する材料を選定する。焼結金属を、金型に組み付け後、金型の形状を加工することによって、最も潤滑が必要なコーナーR(15)に潤滑油を塗布すると同時に、被成形体を成形する構造を実現できる。   A structure in which the oil supply material 24 is arranged at the corner R (15) that needs the most lubrication will be described with reference to FIG. The material of the oil supply material 24 is a sintered metal, and a material is selected that ensures rigidity to such an extent that the oil supply material will not be deformed or damaged even if the oil supply material itself is molded. By assembling the sintered metal into the mold and then processing the shape of the mold, it is possible to apply the lubricating oil to the corner R (15) that requires the most lubrication, and at the same time, realize a structure for molding the object to be molded.

以上に説明したように本実施例のプレス成形方法は、上金型1と下金型2とにより間に配置された被成形物22を挟み込むことにより該被成形物22を成形するものであり、上金型1又は下金型2は、被成形物22を挟み込んだ際の該被成形物側に配置される油供給材24を複数備え、上金型1又は下金型2には、内部に潤滑油を流すための内部流路23が形成され、該内部流路23を流れた潤滑油が油供給材24を介して被成形物側に流れ出ることにより、該被成形物22、上金型1及び下金型2の潤滑を行う。   As described above, the press molding method of the present embodiment is to mold the molding 22 by sandwiching the molding 22 disposed between the upper mold 1 and the lower mold 2. The upper mold 1 or the lower mold 2 includes a plurality of oil supply materials 24 arranged on the molding object side when the molding object 22 is sandwiched, and the upper mold 1 or the lower mold 2 includes An internal flow path 23 for flowing lubricating oil is formed inside, and the lubricating oil that has flowed through the internal flow path 23 flows out to the molded object side through the oil supply material 24, whereby the molded object 22, Lubrication of the mold 1 and the lower mold 2 is performed.

そして油供給材24は多数の貫通孔が形成された多孔質樹脂であり、内部流路23を流れた潤滑油が油供給材24を介して被成形物側に流れ出ることにより、該被成形物22、上金型1及び下金型2の潤滑を行うことが望ましい。あるいは、油供給材24の材質は焼結金属であり、油供給材24を上金型1又は下金型2のコーナー部(コーナーR(15))となる箇所に配置することで上記したように被成形物22を成形することが可能となる。なお、焼結金属である油供給材24を、上金型1又は下金型2に組み付け後に、上金型1又は下金型2のコーナー部(コーナーR(15))の形状を加工することが望ましく、この油供給材24によって、潤滑油を塗布すると共に、被成形体22を成形するものである。   The oil supply material 24 is a porous resin in which a large number of through-holes are formed, and the lubricating oil that has flowed through the internal flow path 23 flows out to the molding object side through the oil supply material 24, thereby 22. It is desirable to lubricate the upper mold 1 and the lower mold 2. Alternatively, the material of the oil supply material 24 is a sintered metal, and the oil supply material 24 is disposed at a location to be a corner portion (corner R (15)) of the upper mold 1 or the lower mold 2 as described above. It becomes possible to shape | mold the to-be-molded product 22. In addition, after assembling the oil supply material 24, which is a sintered metal, to the upper mold 1 or the lower mold 2, the shape of the corner portion (corner R (15)) of the upper mold 1 or the lower mold 2 is processed. Desirably, the oil supply material 24 is used to apply lubricating oil and to form the molded body 22.

このように金型自体に潤滑油の給油経路を配置したことにより、ワークと金型の接触部だけに必要量の潤滑油を供給することが可能となるため、被成形体の割れやひび発生や型磨耗を防止できる。また、金型外への潤滑油の飛散により発生する作業環境の悪化や潤滑油のムダを抑制することができる。また、潤滑油吐出口のエッジによる被成形体のキズを抑制できる。   By arranging the lubricating oil supply path in the mold itself in this way, it is possible to supply the required amount of lubricating oil only to the contact part between the workpiece and the mold, so that cracks and cracks in the molded object occur. And mold wear can be prevented. Further, it is possible to suppress the deterioration of the working environment and the waste of the lubricating oil caused by the scattering of the lubricating oil outside the mold. Further, it is possible to suppress scratches on the molded body due to the edge of the lubricating oil discharge port.

次に、油供給材24の寸法について図6を用いて説明する。(a)は直径d1、高さh1の円柱形である。このように、油供給材24は、被成形物側の表面に平行に配置することで、油供給材24を上金型および下金型に合わせて、複雑形状に加工する必要が無い。また、(b)は(a)の高さh2(h1−0.5、本件では油の表面張力を考慮して0.5mmとした。)にしたものであり、このように被成形物側に隙間を形成することで、この隙間に潤滑油を保持することができるようにしたものである。   Next, the dimensions of the oil supply member 24 will be described with reference to FIG. (A) is a cylindrical shape with a diameter d1 and a height h1. Thus, the oil supply material 24 is arranged in parallel to the surface on the molding object side, so that it is not necessary to process the oil supply material 24 into a complicated shape in accordance with the upper mold and the lower mold. (B) is the height h2 of (a) (h1-0.5, in this case, 0.5 mm in consideration of the surface tension of the oil). By forming a gap in the gap, lubricating oil can be held in the gap.

また図6(c)は(a)の周囲に油溜まり用の溝(油滴の径以上で面取り)を配置したもの、(d)は(a)の上面にφd2、深さiの孔を追加したものである。(c)、(d)も(b)と同様に、油供給材24と金型の被成形物側の隙間に潤滑油を溜めることができるようにするために、(a)の一部をカットした構造である。つまり、図6(c)は油供給材24は円柱形状により構成され、該油供給材24は被成形物側面の外周に沿って油溜まり用の溝を形成するものである。また図6(d)は油供給材24は被成形物側面の中心部に孔を形成するものである。このように油供給材24を、上金型1又は下金型2の被成形物側面と同一平面上、あるいは前記被成形物側と反対側に隙間を介して配置することにより、この隙間に潤滑油を保持することが可能となる。   FIG. 6 (c) shows an oil sump groove (chamfered at a diameter larger than the oil droplet diameter) around (a), and FIG. 6 (d) shows a hole of φd2 and depth i on the upper surface of (a). It is added. (C) and (d), as in (b), in order to allow the lubricating oil to be stored in the gap between the oil supply member 24 and the molding object of the mold, It is a cut structure. That is, in FIG. 6C, the oil supply member 24 is formed in a cylindrical shape, and the oil supply member 24 forms an oil reservoir groove along the outer periphery of the molding side surface. In FIG. 6D, the oil supply member 24 forms a hole at the center of the side surface of the molding. In this way, the oil supply material 24 is disposed on the same plane as the side surface of the molding object of the upper mold 1 or the lower mold 2 or on the opposite side of the molding object side through the clearance, so that the gap is formed. Lubricating oil can be retained.

油供給材の特徴について図7を用いて説明する。図7は油供給材を金型内に組み付けた状態を示している。油を供給するために、油供給材の一部をカットした(b)、(c)、(d)では、金型表面と供給材で形成された溝部に吐出した油が流出しないで保持され、不要部に油が出ない構造になっている。   The characteristics of the oil supply material will be described with reference to FIG. FIG. 7 shows a state in which the oil supply material is assembled in the mold. In (b), (c), and (d) in which a part of the oil supply material is cut to supply oil, the oil discharged to the groove formed by the mold surface and the supply material is held without flowing out. The structure is such that oil does not come out in unnecessary parts.

油供給材の取り付け方法について図8を用いて説明する。通常では油供給材の取り付けは(a)のように行うが、給油時において油供給材が脱落するのを防止するため、(e)のように、油供給材の形状をツバ付きにし、ボルトで締め付ける構造を用いる場合もある。なお、本発明は上記した実施例に限定されるものではなく、様々な変形例が含まれる。例えば、上記した実施例は本発明をわかりやすく説明するために詳細を説明したものであり、必ずしも説明した全ての構成を備えるものに限定されるものではない。   A method of attaching the oil supply material will be described with reference to FIG. Normally, the oil supply material is attached as shown in (a). However, in order to prevent the oil supply material from falling off during refueling, the shape of the oil supply material is provided with a flange as shown in (e). In some cases, a structure that is tightened with is used. In addition, this invention is not limited to an above-described Example, Various modifications are included. For example, the above-described embodiments have been described in detail in order to explain the present invention in an easy-to-understand manner, and are not necessarily limited to those having all the configurations described.

1 上金型
2 下金型
3 スライド
4 ボルスター
5 上型ベース
6 下型ベース
7 ダイ
8 ダイホルダ
9 板押さえ
10 スプリング
11 ノズル
12 ポンプに接続された油供給管
13 油供給管固定部
14 潤滑油
15 コーナーR
16 潤滑油を塗布できない部位
17 潤滑油を無駄に塗布する部位
18 容積型ポンプ
19 金型部材
20 潤滑油吐出口
21 孔あけにより生じたエッジ
22 被成形物
23 ポンプに接続された潤滑油の内部流路
24 油供給材
25 材料の伸びの方向
26 油溜まり
27 ボルト
1 Upper mold 2 Lower mold 3 Slide 4 Bolster 5 Upper mold base 6 Lower mold base 7 Die 8 Die holder 9 Plate holder 10 Spring 11 Nozzle 12 Oil supply pipe 13 connected to the pump 13 Oil supply pipe fixing part 14 Lubricating oil 15 Corner R
16 Portion where lubricant cannot be applied 17 Portion where waste lubricant is applied 18 Positive displacement pump 19 Mold member 20 Lubricant discharge port 21 Edge 22 formed by drilling molding 23 Inside of lubricant connected to pump Flow path 24 Oil supply material 25 Direction of material extension 26 Oil reservoir 27 Bolt

Claims (8)

上金型と下金型とにより間に配置された被成形物を挟み込むことにより該被成形物を成形するプレス成形方法において、
前記上金型又は前記下金型は、前記被成形物を挟み込んだ際の該被成形物側に配置される油供給材を複数備え、
前記上金型又は前記下金型には、内部に潤滑油を流すための内部流路が形成され、該内部流路を流れた潤滑油が前記油供給材を介して前記被成形物側に流れ出ることにより、該被成形物、前記上金型及び前記下金型の潤滑を行うことを特徴とするプレス成形方法。
In a press molding method of molding the molding by sandwiching the molding arranged between the upper mold and the lower mold,
The upper mold or the lower mold includes a plurality of oil supply materials arranged on the molding side when the molding is sandwiched,
The upper mold or the lower mold is formed with an internal flow path for flowing lubricating oil therein, and the lubricating oil that has flowed through the internal flow path passes through the oil supply material to the molding object side. A press molding method characterized by lubricating the workpiece, the upper mold, and the lower mold by flowing out.
請求項1に記載のプレス成形方法において、
前記油供給材は多数の貫通孔が形成された多孔質樹脂であり、前記内部流路を流れた潤滑油が前記油供給材を介して前記被成形物側に流れ出ることにより、該被成形物、前記上金型及び前記下金型の潤滑を行うことを特徴とするプレス成形方法。
In the press molding method according to claim 1,
The oil supply material is a porous resin in which a large number of through-holes are formed, and the lubricating oil that has flowed through the internal flow channel flows out to the molding object side through the oil supply material, whereby the molded product The press molding method characterized in that the upper mold and the lower mold are lubricated.
請求項1に記載のプレス成形方法において、
前記油供給材の材質は焼結金属であり、該油供給材を前記上金型又は前記下金型のコーナー部となる箇所に配置することを特徴とするプレス成形方法。
In the press molding method according to claim 1,
The material of the oil supply material is a sintered metal, and the oil supply material is disposed at a location that becomes a corner portion of the upper mold or the lower mold.
請求項3に記載のプレス成形方法において、
前記焼結金属である前記油供給材を、前記上金型又は下金型に組み付け後に、前記上金型又は下金型の前記コーナー部の形状を加工することを特徴とするプレス成形方法。
In the press molding method according to claim 3,
A press molding method, wherein the shape of the corner portion of the upper mold or the lower mold is processed after the oil supply material, which is the sintered metal, is assembled to the upper mold or the lower mold.
請求項3に記載のプレス成形方法において、
前記焼結金属である前記油供給材によって、潤滑油を塗布すると共に、前記被成形体を成形することを特徴とするプレス成形方法。
In the press molding method according to claim 3,
A press molding method characterized by applying lubricating oil by the oil supply material which is the sintered metal and molding the object to be molded.
請求項1に記載のプレス成形方法において、
前記油供給材は円柱形状により構成され、該油供給材は前記被成形物側面の外周に沿って油溜まり用の溝を形成することを特徴とするプレス成形方法。
In the press molding method according to claim 1,
The said oil supply material is comprised by the column shape, and this oil supply material forms the groove | channel for oil pools along the outer periphery of the said to-be-molded material side, The press molding method characterized by the above-mentioned.
請求項1に記載のプレス成形方法において、
前記油供給材は前記被成形物側面の中心部に孔を形成することを特徴とするプレス成形方法。
In the press molding method according to claim 1,
The said oil supply material forms a hole in the center part of the said to-be-molded object side surface, The press molding method characterized by the above-mentioned.
請求項1に記載のプレス成形方法において、
前記油供給材を、前記上金型又は下金型の前記被成形物側面と同一平面上、あるいは前記被成形物側と反対側に隙間を介して配置することを特徴とするプレス成形方法。
In the press molding method according to claim 1,
A press molding method, wherein the oil supply material is disposed on the same plane as the side surface of the molding object of the upper mold or the lower mold or on the opposite side of the molding object side via a gap.
JP2012093475A 2012-04-17 2012-04-17 Press forming method Pending JP2013220444A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017001045A (en) * 2015-06-05 2017-01-05 株式会社デンソー Press die
CN113770273A (en) * 2021-09-28 2021-12-10 广州坤江汽车配件工业制造有限公司 Full-automatic stamping production line of radiator main fin
CN114643320A (en) * 2022-03-27 2022-06-21 王苏杰 Stamping die for automobile sheet metal part and using method of stamping die
CN114653811A (en) * 2022-04-29 2022-06-24 滁州市永达机械科技有限公司 Corrosion-resistant refrigerator door plant processing panel beating mould head

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017001045A (en) * 2015-06-05 2017-01-05 株式会社デンソー Press die
CN113770273A (en) * 2021-09-28 2021-12-10 广州坤江汽车配件工业制造有限公司 Full-automatic stamping production line of radiator main fin
CN114643320A (en) * 2022-03-27 2022-06-21 王苏杰 Stamping die for automobile sheet metal part and using method of stamping die
CN114653811A (en) * 2022-04-29 2022-06-24 滁州市永达机械科技有限公司 Corrosion-resistant refrigerator door plant processing panel beating mould head

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