JP2006289399A - Working method, die, and die structure - Google Patents

Working method, die, and die structure Download PDF

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Publication number
JP2006289399A
JP2006289399A JP2005111094A JP2005111094A JP2006289399A JP 2006289399 A JP2006289399 A JP 2006289399A JP 2005111094 A JP2005111094 A JP 2005111094A JP 2005111094 A JP2005111094 A JP 2005111094A JP 2006289399 A JP2006289399 A JP 2006289399A
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Prior art keywords
punch
die
tip
end side
pyramid
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JP4746904B2 (en
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Takashi Kondo
崇史 近藤
Hideto Ito
秀人 伊藤
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Ricoh Co Ltd
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Ricoh Co Ltd
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Priority to JP2005111094A priority Critical patent/JP4746904B2/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/24—Perforating, i.e. punching holes
    • B21D28/34—Perforating tools; Die holders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/24—Perforating, i.e. punching holes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/24—Perforating, i.e. punching holes
    • B21D28/26—Perforating, i.e. punching holes in sheets or flat parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D31/00—Other methods for working sheet metal, metal tubes, metal profiles
    • B21D31/02—Stabbing or piercing, e.g. for making sieves

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Mounting, Exchange, And Manufacturing Of Dies (AREA)
  • Punching Or Piercing (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a working method for forming a cylindrical projection part in which two or more slits are formed from the top end side to the proximal end side, dispensing with the conventional slit cutting, and to provide a die structure. <P>SOLUTION: In the working method for forming a cylindrical projection part 11 in which a pair of slits 10 are formed from the top end side to the proximal end side using a metal plate 5 as the stock, by the combination of a punch 3 having at least one ridgeline 4 at the top end part and a die 1 having a pair of angular projection parts 2, the cylindrical projection part 11 is formed in such a manner that the apex of each angular projection part 2 in the die 1 is arranged on the line almost same as each ridgeline 4 of the top end part in the punch 3. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、金属板を素材として、先端側から基端側に向けて２つ以上のスリットが形成されている筒状突起部を形成する加工方法及び金型構造に関するものである。   The present invention relates to a processing method and a mold structure for forming a cylindrical protrusion having two or more slits formed from a metal plate as a raw material toward a base end side.

従来では、金属板を素材として、先端側から基端側に向けて１対のスリットが形成されている筒状突起部を形成する技術が提案されている（例えば、特許文献１及び２参照）。
この種の金属板の成形方法として、特許文献１ではバーリングポンチ及びバーリングを、特許文献２では、板材の締結方法及びその締結方法に用いるポンチを開示している。
例えば特許文献２では、ピアス工程１、スリット切り込み工程２、バーリング工程３によりスリットを有した筒状突起部を形成している。ここで、スリット切り込み工程２で形成されるスリットの切り込みは断面Ｖ字状の非貫通のものであり、そのスリット切り込み部の裏面側からバーリング加工を施すことを特徴としている。またスリット切り込み工程２に用いられる工具としては、先端の平坦部にＶ字の突起を配置したパンチが開示されている。
特許第３６２５９３８号 特開平０９−２６７１４０号公報 2. Description of the Related Art Conventionally, a technique has been proposed that uses a metal plate as a material to form a cylindrical protrusion having a pair of slits formed from the distal end side toward the proximal end side (see, for example, Patent Documents 1 and 2). .
As a method for forming a metal plate of this type, Patent Literature 1 discloses a burring punch and burring, and Patent Literature 2 discloses a plate material fastening method and a punch used for the fastening method.
For example, in Patent Document 2, a cylindrical protrusion having a slit is formed by a piercing process 1, a slit cutting process 2, and a burring process 3. Here, the slit cut formed in the slit cutting step 2 is non-penetrating with a V-shaped cross section, and is characterized in that burring is performed from the back side of the slit cut portion. Moreover, as a tool used for the slit cutting process 2, the punch which has arrange | positioned the V-shaped protrusion in the flat part of the front-end | tip is disclosed.
Japanese Patent No. 3625938 JP 09-267140 A

しかしながら、スリット切り込み部の深さが浅いとバーリング工程３を施してもスリットが形成できないという不具合があり、調整に多くの時間を要する。また、例えば高精度を要する穴近傍にパンチを用いてスリット部を形成すると、スリット形成によって押しつぶされた余肉により、近傍の穴が変形してしまうという不具合がある。さらにスリット切り込み工程２により、通常に比べ加工工程が多く必要となり、コストアップの要因となっている。
そこで、本発明の目的は上述した実情を考慮してスリット切り込みを不要としつつ、先端側から基端側に向けて２つ以上のスリットが形成されている筒状突起部を形成する加工方法と、その加工方法に使用するダイ及び金型構造を提供することにある。 However, if the depth of the slit notch is shallow, there is a problem that the slit cannot be formed even if the burring process 3 is performed, and it takes a lot of time for adjustment. Further, for example, if a slit is formed using a punch in the vicinity of a hole that requires high accuracy, there is a problem in that the nearby hole is deformed due to the surplus crushed by the slit formation. Furthermore, the slit cutting process 2 requires more processing steps than usual, which increases the cost.
Accordingly, an object of the present invention is to provide a processing method for forming a cylindrical protrusion in which two or more slits are formed from the distal end side toward the proximal end side while eliminating the need for slit cutting in consideration of the above-described circumstances. Another object of the present invention is to provide a die and a mold structure used in the processing method.

上記の課題を解決するために、請求項１に記載の発明は、金属板を素材として先端側から基端側に向けて１対のスリットが形成されている筒状突起部を形成するために、先端部に少なくとも１つの稜線を有しているパンチと、１対の角状突起部を有しているダイとを組み合せて前記筒状突起部を形成するための加工を行う加工方法において、前記パンチの先端部の稜線とほぼ同一線上に前記ダイの角状突起部の頂点が配置されるようにして前記筒状突起部を形成したことを特徴とする。
また請求項２に記載の発明は、前記パンチの先端部の稜線が前記パンチの略中心上に設置されている請求項１に記載の加工方法を特徴とする。
また請求項３に記載の発明は、金属板を素材として先端側から基端側に向けて少なくとも３つのスリットが形成されている筒状突起部を形成するために、先端部が角錐形状となっているパンチと、該パンチの先端部の角錐形状に対応した個数の角状突起部を有しているダイとを組み合せて前記筒状突起部を形成するための加工を行う加工方法において、前記パンチの先端部の角錐稜線と、前記ダイの角状突起部の頂点がほぼ同一に配置されるようにして前記筒状突起部を形成したことを特徴とする。
また請求項４に記載の発明は、前記パンチの先端部の角錐形状部分がほぼ対称形で形成されている請求項３に記載の加工方法を特徴とする。
また請求項５に記載の発明は、請求項１乃至請求項４の何れか１項に記載の加工方法において使用するダイであって、角状突起部が６０°〜９０°の角度で形成されていることを特徴とする。 In order to solve the above-mentioned problem, the invention according to claim 1 is to form a cylindrical protrusion having a pair of slits formed from a metal plate as a raw material toward a base end side. In a processing method for performing processing for forming the cylindrical protrusion by combining a punch having at least one ridge line at the tip and a die having a pair of angular protrusions, The cylindrical protrusion is formed such that the apex of the angular protrusion of the die is arranged substantially on the same line as the ridge line of the tip of the punch.
The invention according to claim 2 is characterized by the processing method according to claim 1, wherein a ridge line of a tip portion of the punch is disposed on a substantially center of the punch.
According to a third aspect of the present invention, in order to form a cylindrical protrusion having at least three slits formed from a metal plate as a raw material from the distal end side to the proximal end side, the distal end portion has a pyramid shape. In a processing method for performing processing for forming the cylindrical protrusion by combining a punch having a die and a die having a number of angular protrusions corresponding to a pyramid shape at the tip of the punch, The cylindrical protrusion is formed such that the pyramid ridge line at the tip of the punch and the apex of the angular protrusion of the die are arranged substantially the same.
According to a fourth aspect of the present invention, there is provided a machining method according to the third aspect, wherein the pyramid-shaped portion of the tip of the punch is formed in a substantially symmetrical shape.
The invention according to claim 5 is a die used in the processing method according to any one of claims 1 to 4, wherein the angular protrusions are formed at an angle of 60 ° to 90 °. It is characterized by.

また請求項６に記載の発明は、前記角状突起部の先端が微小なＲ形状となっている請求項５記載のダイを特徴とする。
また請求項７に記載の発明は、金属板を素材として先端側から基端側に向けて１対のスリットが形成されている筒状突起部を形成するために、先端部に少なくとも１つの稜線を有しているパンチと、１対の角状突起部を有しているダイとを組み合せて前記筒状突起部を形成するための加工を行う金型構造において、前記パンチの先端部の稜線とほぼ同一線上に前記角状突起部の頂点が配置されていることを特徴とする。
また請求項８に記載の発明は、前記パンチの先端部の稜線がパンチの略中心上に設置されている請求項７記載の金型構造を特徴とする。
また請求項９に記載の発明は、金属板を素材として先端側から基端側に向けて少なくとも３つのスリットが形成されている筒状突起部を形成するために、先端部が角錐形状となっているパンチと、該パンチの先端部の角錐形状部分に対応した個数の角状突起部を有しているダイとを組み合せて前記筒状突起部を形成するための加工を行う金型構造において、前記パンチの先端部の角錐稜線と、前記ダイの角状突起部の頂点がほぼ同一に配置されていることを特徴とする。
また請求項１０に記載の発明は、前記パンチの先端部の角錐形状部分がほぼ対称形で形成されている請求項９記載の金型構造を特徴とする。 The invention according to claim 6 is characterized by the die according to claim 5 in which the tip of the angular projection has a minute R shape.
According to a seventh aspect of the present invention, at least one ridge line is formed at the distal end portion in order to form a cylindrical projection having a pair of slits formed from a metal plate as a raw material toward the proximal end side. In a mold structure for performing a process for forming the cylindrical protrusion by combining a punch having a die and a die having a pair of square protrusions, a ridge line at the tip of the punch The vertices of the angular projections are arranged substantially on the same line as the above.
The invention according to claim 8 is characterized by the mold structure according to claim 7, wherein the ridge line of the tip end portion of the punch is disposed substantially at the center of the punch.
According to the ninth aspect of the present invention, in order to form a cylindrical protrusion having at least three slits formed from a metal plate as a raw material from the distal end side to the proximal end side, the distal end portion has a pyramid shape. In a mold structure for performing processing for forming the cylindrical protrusion by combining a punch having a die and a die having a number of angular protrusions corresponding to the pyramid-shaped portion at the tip of the punch The pyramid ridgeline at the tip of the punch and the apex of the angular protrusion of the die are arranged substantially the same.
The invention described in claim 10 is characterized by the mold structure according to claim 9, wherein the pyramid-shaped portion of the tip of the punch is formed substantially symmetrically.

本発明によれば、金属板を素材として先端側から基端側に向けて１対のスリットが形成されている筒状突起部を形成するために、先端部に少なくとも１つの稜線を有しているパンチと１対の角状突起部を有しているダイとを組み合せて筒状突起部を形成するための加工を行い、かつパンチの先端部の稜線とほぼ同一線上にダイの角状突起部の頂点を配置するようにしているので、従来のようなスリット切り込みを不要としつつ、先端側から基端側に向けて２つのスリットが形成されている筒状突起部を形成することが可能となる。   According to the present invention, in order to form a cylindrical protrusion having a pair of slits formed from a metal plate as a raw material toward the proximal end side, the distal end portion has at least one ridgeline. The die for forming a cylindrical projection is formed by combining a punch having a die having a pair of square projections, and the die square projections are substantially on the same line as the ridgeline of the tip of the punch. Since the apex of the part is arranged, it is possible to form a cylindrical projecting part in which two slits are formed from the distal end side to the proximal end side while eliminating the need for slit cutting as in the prior art It becomes.

以下、図面を参照して本発明の実施形態を詳細に説明する。
図１は本発明に係わるバーリング加工に用いるダイを示す斜視図である。図２は図１のダイを示す正面図ある。図３は図１のダイを示す断面図である。図４は本発明に係わるバーリング加工に用いるパンチを示す斜視図である。図５は図４のパンチを示す正面図である。
図１乃至図５において、ダイ１には４つの角状突起部２がダイ１に対して均等に設置されている。パンチ３の先端は４つの稜線４からなる角錐形状となっている。また、稜線４はパンチ３に対して均等に設置されている。角状突起部２の先端は、パンチの稜線とほぼ同一線上となる位置関係で設置されている。
図６はダイとパンチの位置関係を示す概略図である。図７は図６の断面指示記号７−７による断面図である。図８は図７の断面図の１部分を示す拡大図である。ダイ１とパンチ３は図６に示す位置関係で図示を略す金型内に設置される。
図９は本発明に係る第１の実施形態の金型及び加工方法においてパンチとダイが設置されている金型に設置された下穴が形成された金属板を示す概略図である。図１０はパンチを金属板にプレス加工装置などを用いて圧入している状態を示す概略図である。
図９に示すように、このようなパンチ３とダイ１が設置されている金型に、公知の方法により穴あけ加工を施して下穴６が形成された金属板５を設置し、図１０に示すように、パンチ３をプレス加工装置などにより圧入する。図９及び図１０において、さらに、ダイ１、突起部２、移動方向７、パンチホルダ８、スプリング９が示されている。 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a perspective view showing a die used for burring processing according to the present invention. FIG. 2 is a front view showing the die of FIG. FIG. 3 is a cross-sectional view showing the die of FIG. FIG. 4 is a perspective view showing a punch used for burring according to the present invention. FIG. 5 is a front view showing the punch of FIG.
In FIG. 1 to FIG. 5, the four angular protrusions 2 are equally installed on the die 1. The tip of the punch 3 has a pyramid shape including four ridge lines 4. Further, the ridge line 4 is evenly disposed with respect to the punch 3. The tip of the square protrusion 2 is installed in a positional relationship that is substantially collinear with the ridgeline of the punch.
FIG. 6 is a schematic view showing the positional relationship between the die and the punch. FIG. 7 is a sectional view taken along the section designation symbol 7-7 in FIG. FIG. 8 is an enlarged view showing a portion of the cross-sectional view of FIG. The die 1 and the punch 3 are installed in a mold not shown in the positional relationship shown in FIG.
FIG. 9 is a schematic view showing a metal plate in which a pilot hole is provided in a mold in which a punch and a die are installed in the mold and processing method of the first embodiment according to the present invention. FIG. 10 is a schematic view showing a state in which a punch is press-fitted into a metal plate using a press working device or the like.
As shown in FIG. 9, a metal plate 5 in which a drill hole is formed by a known method on a mold in which such a punch 3 and a die 1 are installed is installed, and FIG. As shown, the punch 3 is press-fitted by a press working device or the like. 9 and 10, the die 1, the protrusion 2, the moving direction 7, the punch holder 8, and the spring 9 are further shown.

図１１は本発明に係る第１の実施形態の金型及び加工方法によって加工された金属板及び成形部を示す斜視図である。図１２は図１１の形状体を示す正面図である。図１１及び図１２には、図９及び図１０記載の方法により加工された形状体（金属板及び成形部）を示している。先端側から基端側に向けて４つのスリット１０が形成されている筒状突起部１１が形成されている。
本実施の形態では、稜線４及び角状突起部２を各々４つ形成したが、４つに限らず３つ以上であれば必要に応じて本数を増減することができる。
また、金属板５は下穴６が形成されていなくても良く、必要に応じて使い分けることができる。
図１３は本発明に係わるバーリング加工に用いるダイを示す斜視図である。図１４は図１３のダイを示す正面図ある。図１５は図１３のダイを示す断面図である。図１６は本発明に係わるバーリング加工に用いるパンチを示す斜視図である。図１７は図１６のパンチを示す正面図である。
第１の実施形態ではスリット１０を３つ以上形成する方法の例を示したが、この第２の実施の形態では、１対（２つ）のスリット１０を形成する方法の例を説明する。図１３乃至図１７において、その他、ダイ１１とパンチ１２の位置関係及び実施の形態は第１の実施形態と同様であるので説明を省略する。
図１８は本発明に係る第２の実施形態の金型及び加工方法によって加工された金属板及び成形部を示す斜視図である。図１９は図１８の形状体を示す正面図である。
図１８及び図１９には、図１３乃至図１７記載の方法により加工された形状体（金属板及び成形部）を示している。先端側から基端側に向けて２つのスリット１０が形成されている筒状突起部１１が形成されている。 FIG. 11 is a perspective view showing a metal plate and a molded part processed by the mold and the processing method of the first embodiment according to the present invention. FIG. 12 is a front view showing the shape body of FIG. FIGS. 11 and 12 show a shape body (metal plate and molded part) processed by the method described in FIGS. 9 and 10. A cylindrical projection 11 is formed in which four slits 10 are formed from the distal end side toward the proximal end side.
In the present embodiment, four ridge lines 4 and four angular protrusions 2 are formed. However, the number is not limited to four, and the number can be increased or decreased as necessary as long as there are three or more.
Moreover, the metal plate 5 does not need to have the pilot hole 6 formed, and can be properly used as necessary.
FIG. 13 is a perspective view showing a die used for burring according to the present invention. 14 is a front view showing the die of FIG. FIG. 15 is a cross-sectional view showing the die of FIG. FIG. 16 is a perspective view showing a punch used for burring according to the present invention. FIG. 17 is a front view showing the punch of FIG.
In the first embodiment, an example of a method of forming three or more slits 10 has been described. In the second embodiment, an example of a method of forming a pair (two) of slits 10 will be described. 13 to 17, the positional relationship between the die 11 and the punch 12 and the embodiment are the same as those in the first embodiment, and a description thereof will be omitted.
FIG. 18 is a perspective view showing a metal plate and a molded part processed by the mold and the processing method of the second embodiment according to the present invention. FIG. 19 is a front view showing the shape body of FIG.
18 and 19 show a shaped body (metal plate and molded part) processed by the method described in FIGS. 13 to 17. A cylindrical protrusion 11 is formed in which two slits 10 are formed from the distal end side toward the proximal end side.

これまで説明した本実施形態の加工方法によれば、パンチ３先端部の稜線４がパンチ３の略中心上に設置されていることを特徴としているので、バーリング加工工程において、バランス良く筒状突起部１１スリット１０を形成することができ、ほぼ均一な高さを持った筒状突起部１１の形成が可能となる。
また本実施形態の加工方法によれば、金属板５を素材として、先端側から基端側に向けて少なくとも３つのスリット１０が形成されている筒状突起部１１を形成するために、先端部が角錐形状となっていることを特徴とするパンチ３とこのパンチ先端部の角錐形状部分に対応した個数の角状突起部を有しているダイ１との組み合せを有している。この組み合せで加工しかつ前記パンチ３先端部の角錐稜線と前記角状突起部２の頂点がほぼ同一に配置されていることを特徴としているので、従来のようなスリット切り込みを不要としつつ、先端側から基端側に向けて３つ以上のスリットが形成されている筒状突起部１１を形成することが可能となる。
また本実施形態の加工方法によれば、パンチ３の先端部の角錐形状部分がほぼ対称形で形成されていることを特徴としているので、バーリング加工工程において、バランス良く筒状突起部１１とスリット１０を形成することができるので、ほぼ均一な高さを持った筒状突起部１１の形成が可能となる。
また本実施形態の加工方法によれば、角状突起部２が６０°〜９０°の角度で形成されていることを特徴としているので、バーリング加工工程において、効率良くスリット１０を形成することができ、ダイ１の寿命が長くなり、生産性を上げることが可能となる。
また本実施形態の加工方法によれば、角状突起部２の先端が微小なＲ形状となっていることを特徴とするダイ１を使用しているので、バーリング加工工程において、ダイ１の寿命が長くなり、生産性を上げることが可能となる。 According to the processing method of the present embodiment described so far, the ridgeline 4 at the tip of the punch 3 is installed on the substantial center of the punch 3, so that the cylindrical protrusion is well balanced in the burring process. The portion 11 slit 10 can be formed, and the cylindrical protrusion 11 having a substantially uniform height can be formed.
Moreover, according to the processing method of this embodiment, in order to form the cylindrical protrusion 11 in which at least three slits 10 are formed from the distal end side toward the proximal end side using the metal plate 5 as a raw material, the distal end portion Is a combination of a punch 3 characterized by a pyramid shape and a die 1 having a number of angular protrusions corresponding to the pyramid shape portion of the tip of the punch. Since this combination is characterized in that the pyramid ridge line of the tip of the punch 3 and the apex of the angular protrusion 2 are arranged substantially the same, the slit cutting as in the prior art is not required, It becomes possible to form the cylindrical protrusion 11 in which three or more slits are formed from the side toward the base end side.
Further, according to the processing method of the present embodiment, the pyramid-shaped portion of the tip portion of the punch 3 is formed in a substantially symmetric shape. Therefore, in the burring process, the cylindrical protrusion 11 and the slit are well balanced. 10 can be formed, it is possible to form the cylindrical protrusion 11 having a substantially uniform height.
Further, according to the processing method of the present embodiment, the angular protrusions 2 are formed at an angle of 60 ° to 90 °, so that the slit 10 can be efficiently formed in the burring process. This can increase the life of the die 1 and increase the productivity.
Further, according to the processing method of the present embodiment, since the die 1 characterized in that the tip of the angular protrusion 2 has a minute R shape is used, the life of the die 1 is used in the burring process. It becomes possible to increase productivity.

本発明に係わるバーリング加工に用いるダイを示す斜視図。The perspective view which shows the die | dye used for the burring process concerning this invention. 図１のダイを示す正面図。The front view which shows the die | dye of FIG. 図１のダイを示す断面図。FIG. 2 is a cross-sectional view showing the die of FIG. 1. 本発明に係わるバーリング加工に用いるパンチを示す斜視図。The perspective view which shows the punch used for the burring process concerning this invention. 図４のパンチを示す正面図。The front view which shows the punch of FIG. ダイとパンチの位置関係を示す概略図。Schematic which shows the positional relationship of die | dye and punch. 図６の断面指示記号７による断面図。FIG. 7 is a cross-sectional view taken along a cross-section indicating symbol 7 in FIG. 6. 図７の断面図の１部分を示す拡大図。The enlarged view which shows 1 part of sectional drawing of FIG. 本発明に係る第１の実施形態の金型及び加工方法においてパンチとダイが設置されている金型に設置された下穴が形成された金属板を示す概略図。BRIEF DESCRIPTION OF THE DRAWINGS Schematic which shows the metal plate in which the pilot hole installed in the metal mold | die with which the punch and die | dye are installed in the metal mold | die and processing method of 1st Embodiment concerning this invention was formed. パンチを金属板にプレス加工装置などを用いて圧入している状態を示す概略図。Schematic which shows the state which press-fits the punch to the metal plate using the press work apparatus etc. FIG. 本発明に係る第１の実施形態の金型及び加工方法によって加工された金属板及び成形部を示す斜視図。The perspective view which shows the metal plate and shaping | molding part which were processed by the metal mold | die and processing method of 1st Embodiment which concern on this invention. 図１１の形状体を示す正面図。The front view which shows the shape body of FIG. 本発明に係わるバーリング加工に用いるダイを示す斜視図。The perspective view which shows the die | dye used for the burring process concerning this invention. 図１３のダイを示す正面図。FIG. 14 is a front view showing the die of FIG. 13. 図１３のダイを示す断面図。FIG. 14 is a cross-sectional view showing the die of FIG. 13. 本発明に係わるバーリング加工に用いるパンチを示す斜視図。The perspective view which shows the punch used for the burring process concerning this invention. 図１６のパンチを示す正面図。The front view which shows the punch of FIG. 本発明に係る第２の実施形態の金型及び加工方法によって加工された金属板及び成形部を示す斜視図。The perspective view which shows the metal plate and the shaping | molding part which were processed by the metal mold | die and processing method of 2nd Embodiment which concern on this invention. 図１８の形状体を示す正面図。The front view which shows the shape body of FIG.

符号の説明Explanation of symbols

１ ダイ、２ 突起部（角状突起部）、３ パンチ、４ 稜線部、５ 金属板、６ 下穴、７ 移動方向、８ パンチホルダ、９ スプリング、１０ スリット、１１ 円筒部（筒状突起部）   1 Die, 2 Projection (Square Projection), 3 Punch, 4 Ridge Line, 5 Metal Plate, 6 Pilot Hole, 7 Movement Direction, 8 Punch Holder, 9 Spring, 10 Slit, 11 Cylinder (Cylinder Projection) )

Claims (10)

金属板を素材として先端側から基端側に向けて１対のスリットが形成されている筒状突起部を形成するために、先端部に少なくとも１つの稜線を有しているパンチと、１対の角状突起部を有しているダイとを組み合せて前記筒状突起部を形成するための加工を行う加工方法において、前記パンチの先端部の稜線とほぼ同一線上に前記ダイの角状突起部の頂点が配置されるようにして前記筒状突起部を形成したことを特徴とする加工方法。   In order to form a cylindrical projection having a pair of slits formed from a metal plate as a raw material toward the proximal end side, a punch having at least one ridge line at the distal end portion, and a pair In the processing method for performing the processing for forming the cylindrical projection portion by combining with a die having a square projection portion, the square projection of the die is substantially on the same line as the ridge line of the tip end portion of the punch. The cylindrical projection is formed so that the apex of the part is arranged. 前記パンチの先端部の稜線が前記パンチの略中心上に設置されていることを特徴とする請求項１に記載の加工方法。   The processing method according to claim 1, wherein a ridge line of a tip portion of the punch is disposed on a substantially center of the punch. 金属板を素材として先端側から基端側に向けて少なくとも３つのスリットが形成されている筒状突起部を形成するために、先端部が角錐形状となっているパンチと、該パンチの先端部の角錐形状に対応した個数の角状突起部を有しているダイとを組み合せて前記筒状突起部を形成するための加工を行う加工方法において、前記パンチの先端部の角錐稜線と、前記ダイの角状突起部の頂点がほぼ同一に配置されるようにして前記筒状突起部を形成したことを特徴とする加工方法。   In order to form a cylindrical projection having at least three slits formed from a metal plate as a raw material from the front end side to the base end side, a punch having a pyramid shape at the front end portion, and a front end portion of the punch In a processing method for performing processing for forming the cylindrical protrusion by combining a die having a number of angular protrusions corresponding to the shape of the pyramid, the pyramid ridge line of the tip of the punch, and A processing method characterized in that the cylindrical protrusions are formed such that the vertices of the angular protrusions of the die are arranged substantially the same. 前記パンチの先端部の角錐形状部分がほぼ対称形で形成されていることを特徴とする請求項３に記載の加工方法。   The processing method according to claim 3, wherein the pyramid-shaped portion of the tip of the punch is formed substantially symmetrically. 請求項１乃至請求項４の何れか１項に記載の加工方法において使用するダイであって、角状突起部が６０°〜９０°の角度で形成されていることを特徴とするダイ。   The die used in the processing method according to any one of claims 1 to 4, wherein the angular protrusions are formed at an angle of 60 ° to 90 °. 前記角状突起部の先端が微小なＲ形状となっていることを特徴とする請求項５に記載のダイ。   The die according to claim 5, wherein a tip of the angular protrusion has a fine R shape. 金属板を素材として先端側から基端側に向けて１対のスリットが形成されている筒状突起部を形成するために、先端部に少なくとも１つの稜線を有しているパンチと、１対の角状突起部を有しているダイとを組み合せて前記筒状突起部を形成するための加工を行う金型構造において、前記パンチの先端部の稜線とほぼ同一線上に前記角状突起部の頂点が配置されていることを特徴とする金型構造。   In order to form a cylindrical projection having a pair of slits formed from a metal plate as a raw material toward the proximal end side, a punch having at least one ridge line at the distal end portion, and a pair In a mold structure for performing processing for forming the cylindrical projection by combining with a die having a square projection of the square projection, the square projection is substantially on the same line as the ridgeline of the tip of the punch. Mold structure characterized in that the vertices are arranged. 前記パンチの先端部の稜線がパンチの略中心上に設置されていることを特徴とする請求項７に記載の金型構造。   The mold structure according to claim 7, wherein a ridge line of a tip end portion of the punch is disposed on a substantially center of the punch. 金属板を素材として先端側から基端側に向けて少なくとも３つのスリットが形成されている筒状突起部を形成するために、先端部が角錐形状となっているパンチと、該パンチの先端部の角錐形状部分に対応した個数の角状突起部を有しているダイとを組み合せて前記筒状突起部を形成するための加工を行う金型構造において、前記パンチの先端部の角錐稜線と、前記ダイの角状突起部の頂点がほぼ同一に配置されていることを特徴とする金型構造。   In order to form a cylindrical projection having at least three slits formed from a metal plate as a raw material from the front end side to the base end side, a punch having a pyramid shape at the front end portion, and a front end portion of the punch In a mold structure for performing processing for forming the cylindrical projection by combining a die having a number of angular projections corresponding to the pyramid-shaped portion of the pyramid-shaped portion, The mold structure is characterized in that the vertices of the angular protrusions of the die are arranged substantially the same. 前記パンチの先端部の角錐形状部分がほぼ対称形で形成されていることを特徴とする請求項９記載の金型構造。   The mold structure according to claim 9, wherein the pyramid-shaped portion of the tip of the punch is formed substantially symmetrically.
JP2005111094A 2005-04-07 2005-04-07 Processing method, die and mold structure Expired - Fee Related JP4746904B2 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011169452A (en) * 2010-02-22 2011-09-01 Nippon Leakless Corp Method for manufacturing metal gasket for cylinder head, and metal gasket for cylinder head
US8204414B2 (en) 2007-12-04 2012-06-19 Ricoh Company, Ltd. Fastening structure, blade structure, develop unit, and image formation apparatus
US20140338512A1 (en) * 2013-05-20 2014-11-20 Japan Aviation Electronics Industry, Limited Edge tool

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103506466B (en) * 2012-06-25 2016-01-20 上海贤华内燃机配件有限公司 A kind of processing method of diesel engine gear chamber cover cap main shaft skeleton oil sealing hole

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01177017U (en) * 1988-06-01 1989-12-18
JPH0810871A (en) * 1994-06-24 1996-01-16 Toyota Auto Body Co Ltd Die for forming burring caulking part and method therefor
JPH11724A (en) * 1997-06-11 1999-01-06 Fuji Heavy Ind Ltd Burring punch
JPH11179452A (en) * 1997-12-19 1999-07-06 Ricoh Co Ltd Method for burring binding, binding structure and burring forming punch
JP2001198634A (en) * 2000-01-17 2001-07-24 Shinko Seisakusho:Kk Burring punch

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1044283A (en) * 1912-03-14 1912-11-12 William D Stanger Die for forming metal staying-strips.
SE374714B (en) * 1973-01-10 1975-03-17 Nefab Plywoodemballage Ab
US3925875A (en) * 1973-05-29 1975-12-16 Angeles Metal Trim Co Method of constructing a prefabricated wall module
JP3625938B2 (en) * 1996-01-23 2005-03-02 株式会社リコー Burling punch and burring
JPH09267140A (en) * 1996-04-01 1997-10-14 Nissan Motor Co Ltd Method for joining metal plate and punch to be used thereof
JP2002321023A (en) * 2001-04-26 2002-11-05 Amada Co Ltd Metal mold for punching

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01177017U (en) * 1988-06-01 1989-12-18
JPH0810871A (en) * 1994-06-24 1996-01-16 Toyota Auto Body Co Ltd Die for forming burring caulking part and method therefor
JPH11724A (en) * 1997-06-11 1999-01-06 Fuji Heavy Ind Ltd Burring punch
JPH11179452A (en) * 1997-12-19 1999-07-06 Ricoh Co Ltd Method for burring binding, binding structure and burring forming punch
JP2001198634A (en) * 2000-01-17 2001-07-24 Shinko Seisakusho:Kk Burring punch

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8204414B2 (en) 2007-12-04 2012-06-19 Ricoh Company, Ltd. Fastening structure, blade structure, develop unit, and image formation apparatus
JP2011169452A (en) * 2010-02-22 2011-09-01 Nippon Leakless Corp Method for manufacturing metal gasket for cylinder head, and metal gasket for cylinder head
US8939452B2 (en) 2010-02-22 2015-01-27 Nippon Leakless Industry Co., Ltd. Metal gaskets for cylinder heads, and methods for manufacturing same
US20140338512A1 (en) * 2013-05-20 2014-11-20 Japan Aviation Electronics Industry, Limited Edge tool

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