JP4545450B2 - Metal plate coupling device - Google Patents
Metal plate coupling device Download PDFInfo
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- JP4545450B2 JP4545450B2 JP2004028409A JP2004028409A JP4545450B2 JP 4545450 B2 JP4545450 B2 JP 4545450B2 JP 2004028409 A JP2004028409 A JP 2004028409A JP 2004028409 A JP2004028409 A JP 2004028409A JP 4545450 B2 JP4545450 B2 JP 4545450B2
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- 239000002184 metal Substances 0.000 title claims description 81
- 230000008878 coupling Effects 0.000 title claims description 36
- 238000010168 coupling process Methods 0.000 title claims description 36
- 238000005859 coupling reaction Methods 0.000 title claims description 36
- 239000000463 material Substances 0.000 description 14
- 238000003825 pressing Methods 0.000 description 12
- 238000005304 joining Methods 0.000 description 8
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Description
本発明は、重ね合わせた複数の金属板を局部的に絞り加工および据え込み加工して結合する金属板結合装置に関する。 The present invention relates to a metal plate coupling apparatus that locally combines a plurality of stacked metal plates by drawing and upsetting.
複数の金属板の重合部分を一対のダイとパンチで局部的に塑性変形させて結合する金属板結合装置は、リベットなどの副材を使用しない、スポット溶接のように熱を加えない、鍍金鋼板や塗装鋼板に適用できる、絞り加工および据え込み加工した結合部の形状から品質管理が容易にできる、等々の理由から自動車ボディや家電製品などの広い製造分野で使用されている。この結合装置は、円柱状のパンチを円筒状のパンチホルダに挿通してセットビスで固定する構造や、パンチホルダを支持する支持体側に螺装した調整スリーブでパンチホルダを軸方向に移動させてパンチとダイの間隔を調整する構造が公知である(例えば、特許文献1参照)。このような結合装置におけるパンチとダイの概要を、図8(A)〜(C)で説明する。 The metal plate joining device that joins the overlapping parts of a plurality of metal plates by locally plastically deforming them with a pair of dies and punches, does not use secondary materials such as rivets, and does not apply heat like spot welding, plated steel plate This is used in a wide range of manufacturing fields such as automobile bodies and household electrical appliances for the reasons such as being able to be applied to paint steel plates, making the quality control easy due to the shape of the drawn and upset joints. This coupling device has a structure in which a cylindrical punch is inserted into a cylindrical punch holder and fixed with a set screw, or an adjustment sleeve screwed on a support side supporting the punch holder is used to move the punch holder in the axial direction. A structure for adjusting the distance between the punch and the die is known (for example, see Patent Document 1). An outline of the punch and die in such a coupling device will be described with reference to FIGS.
図8(A)〜(C)に示される結合装置は、上下で対向する一対のダイ60とパンチ70を有する。下側のダイ60は下部支持体61に固定されたアンビル62と、アンビル62を囲う複数のブレード63と、各ブレード63をアンビル62側に附勢するばね材64を有し、ブレード63の上端部とアンビル62の上端面で円形有底のダイス穴65を形成する。パンチ70は先端部が円柱状の軸状部品で、先端部と反対の基端部が図示しない円筒状のパンチホルダに挿通され、パンチホルダに直交方向からセットビスで固定される。パンチ70を支持するパンチホルダは、例えば上部支持体71に高さ調整可能に支持される。パンチ70とパンチホルダの周辺に筒状のストリッパー72がスプリング73で下方に附勢されて配置される。下部支持体61と上部支持体71は、互いに接近または離反する方向に相対移動可能に配置される。図8の場合は、下部支持体61が固定され、上部支持体71が上下動する。 8A to 8C includes a pair of dies 60 and punches 70 that are opposed to each other in the vertical direction. The lower die 60 has an anvil 62 fixed to the lower support 61, a plurality of blades 63 surrounding the anvil 62, and a spring material 64 that biases each blade 63 toward the anvil 62, A circular bottomed die hole 65 is formed at the upper end surface of the part and the anvil 62. The punch 70 is a shaft-shaped part having a columnar tip, and a base end opposite to the tip is inserted into a cylindrical punch holder (not shown) and fixed to the punch holder with a set screw from an orthogonal direction. The punch holder that supports the punch 70 is supported by the upper support 71 so that the height can be adjusted, for example. A cylindrical stripper 72 is urged downward by a spring 73 around the punch 70 and the punch holder. The lower support 61 and the upper support 71 are disposed so as to be relatively movable in a direction approaching or separating from each other. In the case of FIG. 8, the lower support 61 is fixed and the upper support 71 moves up and down.
図8(A)に示すように、ダイ60上に二枚の重ねた金属板50を載置し、上部支持体71を下降させてストリッパー72の下端面を金属板50の上面に当接させ、パンチ70の下端面で金属板50をダイス穴65に向けて加圧する。さらに上部支持体71を下降させ、ストリッパー72の加圧力で金属板50の変形を抑制しながら、図8(B)に示すようにパンチ70で金属板50をダイス穴65に絞り込み加工して有底円筒状の膨出部50aを成形する。さらにパンチ70を下降させて、図8(C)に示すように、パンチ70で膨出部50aの底部を横方向に据え込み展延させて有底の結合部50bを成形する。結合部50bの底部の360°横方向の展延で、複数の各ブレード65がばね材64の弾力に抗して拡開する。図8(C)の状態で据え込み結合が終了すると、上部支持体71を上昇させ、ストリッパー72で金属板50を弾圧したまま結合部50bからパンチ70を引き抜き、さらに上部支持体71を上昇させてストリッパー72を金属板50から離す。ダイ60から金属板1を離脱させると、複数の各ブレード63がばね材64で復帰する。
上記のようなダイとパンチを用いた金属板結合装置は、金属板の材質にもよるが概ね重ねた複数の金属板の結合板厚(板厚合計)が最大6mm程度までの場合に、図8(B)の絞り加工から図8(C)の据え込み加工へと連続する結合性能に優れる。この結合性能は、パンチ先端の直径であるパンチ径が6mm程度未満で、結合時の加圧力が数トン〜5トン程度未満の条件下において有効である。ところが、結合板厚が約10mmを超えると結合性能が急激に低下して、近年の結合板厚増大化の要望に対応することが難しい。 The metal plate bonding apparatus using the die and the punch as described above is shown in the case where the bonding plate thickness (total plate thickness) of the plurality of metal plates which are generally overlapped is about 6 mm at the maximum although it depends on the material of the metal plate. Excellent joint performance from drawing process of 8 (B) to upsetting process of FIG. 8 (C). This bonding performance is effective under conditions where the punch diameter, which is the diameter of the punch tip, is less than about 6 mm, and the applied pressure during bonding is less than about several tons to less than 5 tons. However, when the bonding plate thickness exceeds about 10 mm, the bonding performance is drastically lowered, and it is difficult to meet the recent demand for increasing the bonding plate thickness.
例えば、近年、自動車ボディの製造分野では、より軽く、より薄く、より頑強なボディ製造の要望から、ボディ素材に高張力鋼板の厚肉材が多用される傾向にある。二枚の厚肉材を重ねて結合板厚を10mm程度にしてダイとパンチで結合する場合、実験ではパンチ径6mmのパンチでは強度不足で約2倍の12mmのパンチ径が必要であり、パンチ径12mmのパンチで結合板厚10mmの厚肉材を絞り加工するには30トンを超える加圧力が必要となる。30トンの加圧力をプレス機などで得ることは容易であるが、30トンの加圧力でパンチを支持するパンチホルダなどの支持体側が変位(変形や位置ずれ変動)し、さらに、ストリッパーによる厚肉材の加圧力も従来の6倍程度が必要となり、この加圧力によってストリッパー側も変位する確率が非常に高くなる。その結果、結合板厚10mmの厚肉材の安定した結合が難しく、結合しても結合部の形状、品質が安定せず、実質的に結合板厚増大化の要望に対応することができない。 For example, in recent years, in the automobile body manufacturing field, there has been a tendency to use high-strength steel thick materials as body materials because of the demand for lighter, thinner, and more robust bodies. When two thick materials are stacked and bonded with a die and a punch with a combined plate thickness of about 10 mm, a punch with a punch diameter of 6 mm requires a punch diameter of 12 mm, which is about twice as strong as the punch. In order to draw a thick member having a thickness of 10 mm with a punch having a diameter of 12 mm, a pressing force exceeding 30 tons is required. Although it is easy to obtain a pressing force of 30 tons with a press or the like, the support side such as a punch holder that supports the punch is displaced (deformation or displacement) by the pressing force of 30 tons, and further, the thickness by the stripper The pressing force of the meat material also needs to be about 6 times that of the conventional one, and the probability that the stripper side is displaced by this pressing force becomes very high. As a result, it is difficult to stably bond a thick material having a thickness of 10 mm, and even if it is bonded, the shape and quality of the bonded portion are not stable, and the demand for increasing the thickness of the bonded plate cannot be substantially met.
また、従来の金属板結合装置の構成部品を高剛性化し大型化すれば、上述のような結合板厚の増大化にある程度対応することができる。しかし、結合装置を単に大型化するだけでは、結合板厚の変更に応じて行うダイとパンチの間隔調整のような手動による微調整が難しくなり、このような微調整の頻度が高い結合装置において実用的でない。 Further, if the components of the conventional metal plate coupling apparatus are made highly rigid and large, it is possible to cope with the increase in the thickness of the coupling plate as described above. However, simply increasing the size of the coupling device makes it difficult to make manual fine adjustments such as adjusting the gap between the die and the punch according to changes in the thickness of the coupling plate. Not practical.
本発明は、かかる実情に鑑みてなされたもので、金属板の結合板厚の増大の要望に対応した実用価値の高い金属板結合装置を提供することを目的とする。 This invention is made | formed in view of this situation, and it aims at providing the metal plate coupling | bonding apparatus with a high practical value corresponding to the request | requirement of the increase in the coupling plate thickness of a metal plate.
請求項1の発明は、重ねた複数の金属板1を一対のダイ10およびパンチ20を用いて局部的に加圧し、絞り加工により有底筒状の膨出部を成形すると共に据え込み加工により膨出部の底部を横方向に展延させて結合する金属板結合装置であって、互いに接近または離反する方向に相対移動可能な第1支持体2および第2支持体3と、第1支持体2に取付けられ、ダイ10を支持するダイホルダ11と、第2支持体3に基端部が螺装され、先端に同軸にパンチ20をボルト21で固定したパンチホルダ22と、パンチホルダ22の外周に装着されたストリッパー構造体30を具備し、ストリッパー構造体30は、パンチホルダ22の基端部側の外周に螺装した第1スプリングホルダ32と、パンチホルダ22の先端部外周に軸方向摺動可能に嵌挿され、先端にストリッパー31を一体に有する第2スプリングホルダ33と、第1スプリングホルダ32と第2スプリングホルダ33の間に等間隔に装着され、第2スプリングホルダ33をパンチ20の先端側に向けて附勢する複数のスプリング34とを有し、前記第2支持体に螺装した前記パンチホルダを前記第1スプリングホルダで正逆いずれかの方向に回転させて前記パンチとダイの間隔を調整し、前記パンチホルダに螺装された前記第1スプリングホルダを正逆回転操作して前記パンチに対する前記ストリッパーの相対高さを調整する構造により、上記目的を達成するものである。 According to the first aspect of the present invention, a plurality of stacked metal plates 1 are locally pressurized by using a pair of dies 10 and a punch 20 to form a bottomed cylindrical bulge portion by drawing and by upsetting. A metal plate coupling device that extends and couples the bottom of a bulging portion in a lateral direction, and is capable of moving relative to each other in a direction toward or away from each other, and a first support A die holder 11 attached to the body 2 and supporting the die 10; a punch holder 22 having a proximal end screwed to the second support 3 and coaxially fixed to the tip with a bolt 21; and a punch holder 22 The stripper structure 30 is provided on the outer periphery, and the stripper structure 30 includes a first spring holder 32 screwed to the outer periphery on the proximal end side of the punch holder 22 and an axial direction on the outer periphery of the distal end portion of the punch holder 22. Slidable The second spring holder 33 that is inserted and has the stripper 31 integrally at the tip, and is mounted between the first spring holder 32 and the second spring holder 33 at equal intervals, and the second spring holder 33 is placed on the tip side of the punch 20. have a plurality of springs 34 for biasing toward, an interval between the second said punch holder and screwed to the support is rotated in the forward or reverse direction by the first spring holder the punch and die The object is achieved by a structure that adjusts and adjusts the relative height of the stripper with respect to the punch by rotating the first spring holder screwed on the punch holder forward and backward .
ここで、重ねた複数の金属板1を直接に結合させる一対のダイ10とパンチ20は、基本的には従来と同様な形状でよく、各々のサイズが結合対象の金属板1の結合板厚(重ねた全ての金属板の板厚合計)に対応させて設定される。金属板1が、例えば高張力鋼板である二枚の厚肉材を結合板厚10mmで重合させたものの場合、この結合板厚に対応させてパンチ径を12mmなどとするようにダイ10とパンチ20のサイズが設定され、これに合わせてダイホルダ11、第1支持体2のサイズと形状、さらに、パンチホルダ22と第2支持体3、ストリッパー構造体30のサイズと形状が設定される。一対のダイ10とパンチ20を支持する一対の第1支持体2と第2支持体3は、上下或いは左右で対向する高剛性のフレーム構造体で、プレス機などの外部に設けた駆動源でもって互いに接近または離反する方向に相対移動可能に設置される。この両者の接近または離反の相対移動は、両者間に設置したガイドロッドでガイドして常に正確に行うことができる。また、例えば、第1支持体2がダイ10を上向きに支持する水平な固定されたフレームとすると、第2支持体3はパンチ20を下向きに支持して第1支持体2の真上に上下動可能に配置され、外部のプレス機などに連接されて上下駆動される。 Here, the pair of dies 10 and punches 20 for directly joining the plurality of stacked metal plates 1 may basically have the same shape as the conventional one, and the size of each of the metal plates 1 to be joined is the thickness of the joining plate. It is set corresponding to (total thickness of all the stacked metal plates). In the case where the metal plate 1 is obtained by polymerizing two thick materials made of, for example, high-tensile steel plates with a bond plate thickness of 10 mm, the die 10 and the punch are set so as to have a punch diameter of 12 mm or the like corresponding to the bond plate thickness. Accordingly, the size and shape of the die holder 11 and the first support 2 and the size and shape of the punch holder 22, the second support 3 and the stripper structure 30 are set accordingly. The pair of first support body 2 and second support body 3 that support the pair of dies 10 and the punch 20 are highly rigid frame structures facing each other vertically or horizontally, and are drive sources provided outside a press or the like. Therefore, it is installed so as to be relatively movable in the direction of approaching or separating from each other. The relative movement between the two can be always accurately performed by guiding with a guide rod installed between the two. Further, for example, if the first support 2 is a horizontal fixed frame that supports the die 10 upward, the second support 3 supports the punch 20 downward and moves up and down directly above the first support 2. It is arranged so as to be movable and is driven up and down by being connected to an external press or the like.
また、パンチ20は所定のパンチ径の円柱状加工部と、パンチ径より大径の円盤状本体部を一体に有し、円盤状本体部がほぼ同径の円柱状パンチホルダ22の先端面に同心に接合され、この本体部に軸方向に貫通させた取付穴からパンチホルダ22の先端にボルト21を締め付けて、パンチ20をパンチホルダ22の先端に同軸に固定する。このパンチホルダ22のパンチ20と反対側の端部である基端部が、第2支持体3に軸方向移動調整可能に螺装される。パンチホルダ22の外周に装着されるストリッパー構造体30の一対の第1スプリングホルダ32と第2スプリングホルダ33は、パンチホルダ22に取付けられる円筒状本体部と、この本体部の外周に一体に突設した円環状のフランジ部を有し、両者のフランジ部の間に複数のスプリング34が設置される。第1スプリングホルダ32の本体部が、パンチホルダ22の基端部外周に螺装されてセットビスで固定される。第2スプリングホルダ33の本体部の先端側にストリッパー31が一体に形成される。 In addition, the punch 20 integrally includes a cylindrical processed portion having a predetermined punch diameter and a disc-shaped main body portion having a diameter larger than the punch diameter, and the disc-shaped main body portion is formed on the front end surface of the cylindrical punch holder 22 having substantially the same diameter. A bolt 21 is fastened to the tip of the punch holder 22 from an attachment hole that is joined concentrically and penetrates the body portion in the axial direction, and the punch 20 is coaxially fixed to the tip of the punch holder 22. A base end portion which is an end portion on the opposite side of the punch 20 of the punch holder 22 is screwed to the second support 3 so as to be adjustable in the axial direction. A pair of the first spring holder 32 and the second spring holder 33 of the stripper structure 30 mounted on the outer periphery of the punch holder 22 project integrally with the cylindrical main body portion attached to the punch holder 22 and the outer periphery of the main body portion. An annular flange portion is provided, and a plurality of springs 34 are installed between the two flange portions. The main body of the first spring holder 32 is screwed around the outer periphery of the base end of the punch holder 22 and fixed with a set screw. The stripper 31 is integrally formed on the distal end side of the main body of the second spring holder 33.
また、請求項2の発明は、パンチホルダ22が円柱部材であり、この円柱部材の基端部外周に第2支持体3側の雌ねじ部23mに螺装される雄ねじ部23nと円柱部材中間部外周に前記第1スプリングホルダが螺装される雄ねじ部を有し、同じ円柱部材の先端面にパンチ20をボルト止めするボルト穴27を有することを特徴とする。 Further, in the invention of claim 2, the punch holder 22 is a cylindrical member, and a male screw portion 23n and a cylindrical member intermediate portion which are screwed into a female screw portion 23m on the second support 3 side on the outer periphery of the base end portion of the cylindrical member. It has an external thread part to which the first spring holder is screwed on the outer periphery, and has a bolt hole 27 for bolting the punch 20 on the tip surface of the same cylindrical member.
ここで、パンチホルダ22を円柱状の軸部材にして、その先端部にパンチ20を同軸にボルト止めすることで、パンチホルダ22とパンチ20が特に軸方向において強固に連結される。このパンチホルダ22の基端部外周の雄ねじ部23nを第2支持体3の雌ねじ部23mに螺装することで、パンチホルダ22が第2支持体3に強固に連結される。その結果、パンチ20が金属板1を加圧するときの加圧力が強大となってもパンチ20とパンチホルダ22が変位することなく安定し、パンチ20が金属板1への結合完了後に金属板1よりストリッパー31にて引き出される際の支持も安定し、このパンチホルダ22を第2支持体3が変位することなく安定に支持して、金属板結合板厚の増大に伴う結合加圧力の増大化に対処することが容易になる。 Here, the punch holder 22 is used as a cylindrical shaft member, and the punch 20 is coaxially bolted to the tip of the punch holder 22 so that the punch holder 22 and the punch 20 are firmly connected particularly in the axial direction. The punch holder 22 is firmly connected to the second support 3 by screwing the male screw 23 n on the outer periphery of the base end of the punch holder 22 to the female screw 23 m of the second support 3. As a result, even if the pressure applied when the punch 20 presses the metal plate 1 is increased, the punch 20 and the punch holder 22 are stabilized without displacement, and the metal plate 1 is fixed after the punch 20 is completely joined to the metal plate 1. The support when being pulled out by the stripper 31 is also stabilized, and the punch holder 22 is stably supported without the second support 3 being displaced, and the bonding pressure increases with the increase in the thickness of the metal plate coupling plate. Makes it easier to deal with.
また、第2支持体3に螺装されたパンチホルダ22を第2支持体3に対して正逆回転させることで、パンチ20の軸方向位置の微調整が容易になる。このような微調整のためのパンチホルダ22の回転操作は、パンチホルダ22に連結したストリッパー構造体30を介して行うことができ、しかも、この回転操作はストリッパー構造体30をパンチホルダ22より十分に大きな外径にすることで、特に工具類を使用することなく手動操作することができるようになり、尚一層に便利となる。 Further, by rotating the punch holder 22 screwed to the second support 3 forward and backward with respect to the second support 3, fine adjustment of the axial position of the punch 20 is facilitated. The rotation operation of the punch holder 22 for such fine adjustment can be performed via the stripper structure 30 connected to the punch holder 22, and the rotation operation is more sufficient than the punch holder 22. By using a large outer diameter, manual operation can be performed without using any tools, which makes it even more convenient.
本発明の金属板結合装置によれば、第2支持体に基端部が螺装されたパンチホルダの先端に同軸にパンチをボルトで固定することで、パンチの軸方向取付強度が強大にできて、パンチとダイで金属板を加圧して結合させるときの加圧力を増大させてもパンチホルダ側が変位せず、金属板結合時の加圧力増大化を図ることができる。また、パンチが金属板を結合させた後、金属板よりストリッパーにて引き出される際の支持も強固となる。その結果、結合板厚10mmを超える厚肉材の結合も容易となり、近年の結合板厚の増大化の要望に対応できる実用価値に優れた金属板結合装置が提供できる。 According to the metal plate coupling device of the present invention, the axial mounting strength of the punch can be increased by fixing the punch with a bolt coaxially to the tip of the punch holder whose base end is screwed to the second support. Thus, even if the pressurizing force when the metal plate is pressed and bonded by the punch and die is increased, the punch holder side is not displaced, and the pressurizing force at the time of metal plate bonding can be increased. In addition, after the punch has joined the metal plate, the support when the punch is pulled out from the metal plate by the stripper is also strong. As a result, it becomes easy to bond thick materials exceeding 10 mm in thickness, and it is possible to provide a metal plate bonding apparatus with excellent practical value that can meet the recent demand for increased thickness of the bonding plate.
また、第2支持体にパンチホルダを直接に螺装し、このパンチホルダにストリッパー構造体を取付けるようにしたので、パンチホルダのパンチおよびストリッパーの軸方向移動調整が第2支持体に対してパンチホルダを正逆回転させることで可能となり、しかも、パンチホルダをストリッパー構造体を介して回転させることができるため、金属板結合装置が大型化してもパンチとダイの間隔の微調整が容易にできる効果がある。 Further, since the punch holder is directly screwed to the second support and the stripper structure is attached to the punch holder, the punch of the punch holder and the axial movement adjustment of the stripper are adjusted with respect to the second support. It becomes possible by rotating the holder forward and backward, and since the punch holder can be rotated via the stripper structure, fine adjustment of the distance between the punch and the die can be facilitated even if the metal plate coupling device is enlarged. effective.
以下、本発明の実施の形態を図1〜図7を参照して説明する。 Hereinafter, embodiments of the present invention will be described with reference to FIGS.
図1および図2に示される金属板結合装置は、重ねた二枚の金属板1を局部的に加圧して結合させるダイ10およびパンチ20と、パンチ20の回りに配置したストリッパー31を有する。重ねた二枚の金属板1の材質と結合板厚dは限定されないが、例えば二枚共に高張力鋼板の厚肉材で、二枚の板厚の合計である結合板厚dが約10mmである。ダイ10が第1支持体2にダイホルダ11を介して支持され、パンチ20とストリッパー31が第2支持体3にパンチホルダ22を介して支持される。 The metal plate joining apparatus shown in FIGS. 1 and 2 includes a die 10 and a punch 20 that locally pressurize and join two stacked metal plates 1 and a stripper 31 disposed around the punch 20. The material of the two stacked metal plates 1 and the bonding plate thickness d are not limited. For example, the two plates are both high-strength steel plates, and the total thickness of the two plates is about 10 mm. is there. The die 10 is supported on the first support 2 via the die holder 11, and the punch 20 and the stripper 31 are supported on the second support 3 via the punch holder 22.
第1支持体2と第2支持体3は上下で平行に対向して、互いに接近および離反する上下方向に相対移動する。図1においては、第1支持体2が下部の位置にあって水平に固定され、第2支持体3が上部の位置にあり、図示しないプレス機に連接されて上下動可能に支持される。第1支持体2の両端部上面にガイドロッド4が突設され、第2支持体3の両端部下面にガイド柱5aの上端が固定され、ガイド柱5aの筒状下端部5bが対応するガイドロッド4に挿通される。図1は第2支持体3が上限位置で保持された状態が示され、この状態で外部からプレス機で第2支持体3が下方にプレスされると、ガイドロッド4にガイドされて第2支持体3が第1支持体2に向って下降して、図7に示すように金属板1をダイ10とパンチ20で局部的に絞り加工と据え込み加工で結合する。 The first support body 2 and the second support body 3 face each other in the vertical direction and move relative to each other in the vertical direction approaching and separating from each other. In FIG. 1, the first support 2 is in a lower position and is fixed horizontally, and the second support 3 is in an upper position, and is connected to a press (not shown) so as to be vertically movable. Guide rods 4 project from the upper surfaces of both ends of the first support 2, the upper ends of the guide columns 5 a are fixed to the lower surfaces of both ends of the second support 3, and the cylindrical lower ends 5 b of the guide columns 5 a correspond to the guides. The rod 4 is inserted. FIG. 1 shows a state in which the second support 3 is held at the upper limit position. When the second support 3 is pressed downward from the outside by a press machine in this state, the second support 3 is guided by the guide rod 4 and second. The support body 3 is lowered toward the first support body 2, and the metal plate 1 is locally coupled by drawing and upsetting with the die 10 and the punch 20 as shown in FIG.
第1支持体2の上面中央部に矩形ブロックのダイホルダ11がボルト12で固定され、ダイホルダ11の上面中央部上にダイ10が設置される。ダイ10上に、適宜に二枚の金属板1a、1bの重合部分が配置される。ダイ10は、図6(A)に示すようなアンビル14とブレード15と弾性のオーリング16で構成される。アンビル14は矩形ブロックの本体14aと、本体14aの上面中央部に突設したパンチ受け14bと、本体14aの下面中央に突設した取付軸14cを一体に有し、取付軸14cをダイホルダ11に挿通してセットビス13で固定する。パンチ受け14bは略算盤玉形状の金属ブロックで、その外周に図5に示すような3分割構造のブレード15が嵌着され、各ブレード15の外周に3本の弾性オーリング16を拡径して装着する。各ブレード15の上端部がパンチ受け14bの上面から所定の長さで突出して、パンチ受け14bの上面と各ブレード15の上端部内面とで円形のダイス穴17を形成する。このようなダイ10は、図8に示すような構造であってもよい。 A rectangular block die holder 11 is fixed to the center of the upper surface of the first support 2 with bolts 12, and the die 10 is installed on the center of the upper surface of the die holder 11. On the die 10, the overlapping portions of the two metal plates 1a and 1b are appropriately arranged. The die 10 includes an anvil 14, a blade 15, and an elastic O-ring 16 as shown in FIG. The anvil 14 integrally includes a rectangular block main body 14a, a punch receiver 14b protruding from the center of the upper surface of the main body 14a, and a mounting shaft 14c protruding from the center of the lower surface of the main body 14a. Insert and fix with set screw 13. The punch receiver 14b is an approximately abacus ball-shaped metal block, and a blade 15 having a three-part structure as shown in FIG. 5 is fitted to the outer periphery thereof, and three elastic O-rings 16 are expanded on the outer periphery of each blade 15. Install. The upper end portion of each blade 15 protrudes from the upper surface of the punch receiver 14b by a predetermined length, and a circular die hole 17 is formed by the upper surface of the punch receiver 14b and the inner surface of the upper end portion of each blade 15. Such a die 10 may have a structure as shown in FIG.
第2支持体3は水平な横長の金属フレームで、下面中央部に図3に示すような円筒状のホルダ取付筒6をボルト7で固定している。ホルダ取付筒6に円柱状のパンチホルダ22の上端部が螺装され、パンチホルダ22の下端にパンチ20がボルト21で固定され、パンチホルダ22とパンチ20の周囲にストリッパー構造体30が装着される。ストリッパー構造体30は、上下で対向する一対の第1スプリングホルダ32および第2スプリングホルダ33と、上下の第1、第2スプリングホルダ32、33の間に等間隔で配置した複数、例えば図4鎖線で示すような8本のスプリング34を有し、第2スプリングホルダ33の下端部がストリッパー31を構成する。 The second support 3 is a horizontal horizontally long metal frame, and a cylindrical holder mounting cylinder 6 as shown in FIG. The upper end of a cylindrical punch holder 22 is screwed to the holder mounting cylinder 6, the punch 20 is fixed to the lower end of the punch holder 22 with a bolt 21, and a stripper structure 30 is mounted around the punch holder 22 and the punch 20. The The stripper structure 30 includes a plurality of first and second spring holders 32 and 33 facing each other vertically and a plurality of stripper structures 30 arranged at equal intervals between the upper and lower first and second spring holders 32 and 33, for example, FIG. There are eight springs 34 as indicated by chain lines, and the lower end of the second spring holder 33 constitutes the stripper 31.
パンチ20は、図6(A)に示すような円盤状の本体部20aと、本体部20aの下面中央に突設した円柱状の加圧部20bと、本体部20aの上面中央に突設した中心軸20cを有し、最大外径の本体部20aの上面をパンチホルダ22の下端面に接合させて、パンチホルダ22の下端にパンチ20が同軸に固定される。パンチホルダ22の下端部は本体部20aと同一外径の円柱で、その下端面に中心穴28とボルト穴27を軸方向に形成し、中心穴28にパンチ20の中心軸20cを挿通することで芯合せし、パンチ20の本体部20aに真下から嵌挿したボルト21をボルト穴27に締め込むことで、パンチ20を位置ずれなく強固に取付けるようにしている。 The punch 20 has a disc-shaped main body 20a as shown in FIG. 6A, a columnar pressurizing portion 20b protruding from the center of the lower surface of the main body 20a, and a center of the upper surface of the main body 20a. The punch 20 is coaxially fixed to the lower end of the punch holder 22 by joining the upper surface of the main body portion 20 a having the central axis 20 c and the maximum outer diameter to the lower end surface of the punch holder 22. The lower end portion of the punch holder 22 is a cylinder having the same outer diameter as that of the main body portion 20a, and a central hole 28 and a bolt hole 27 are formed in the lower end surface in the axial direction, and the central shaft 20c of the punch 20 is inserted into the central hole 28. The punch 20 is firmly attached to the bolt hole 27 by tightening the bolt 21 fitted into the main body 20a of the punch 20 into the bolt hole 27.
パンチホルダ22は上下に長い円柱状金属軸で、その上端部である基端部が第2支持体3のホルダ取付筒6に螺装される。ホルダ取付筒6は内周に雌ねじ部23mを有する金属ブロックで、これの雌ねじ部23mにパンチホルダ22の基端部外周に形成した雄ねじ部23nを螺装する。この螺装により、第2支持体3に対してパンチホルダ22が高さ調整可能に取付けられる。パンチホルダ22の高さ調整で、パンチ20とダイ10の間隔が微調整される。このような微調整は、被結合対象の金属板1の結合板厚dの変更に基づいて結合作業の前の段階で行われる。高さ調整されたパンチホルダ22は、ホルダ取付筒6の上下2箇所を貫通させたセットビス25を締め付けることでホルダ取付筒6に固定される。 The punch holder 22 is a cylindrical metal shaft that is long in the vertical direction, and a base end portion that is an upper end portion of the punch holder 22 is screwed to the holder mounting cylinder 6 of the second support 3. The holder mounting cylinder 6 is a metal block having a female screw portion 23m on the inner periphery, and a male screw portion 23n formed on the outer periphery of the base end portion of the punch holder 22 is screwed to the female screw portion 23m. By this screwing, the punch holder 22 is attached to the second support 3 so that the height can be adjusted. By adjusting the height of the punch holder 22, the distance between the punch 20 and the die 10 is finely adjusted. Such fine adjustment is performed at a stage before the joining operation based on the change of the joining plate thickness d of the metal plates 1 to be joined. The punch holder 22 whose height has been adjusted is fixed to the holder mounting cylinder 6 by tightening a set screw 25 penetrating the upper and lower portions of the holder mounting cylinder 6.
ストリッパー構造体30の第1スプリングホルダ32は、パンチホルダ22の基端部近くに螺装される円筒状本体部32aと、この本体部32aの外周に一体に突設した円環状のフランジ部32bを有する。本体部32aの内周の雌ねじ部24mをパンチホルダ22の略中間部外周の雄ねじ部24nに螺装して高さ調整した後、本体部32aがパンチホルダ22にセットビスなどで固定される。第2スプリングホルダ33は、パンチホルダ22の下端部とパンチ20に上下摺動可能に嵌挿される円筒状本体部33aと、この本体部33aの外周に一体に突設した円環状のフランジ部33bを有し、本体部33aの下端にストリッパー31が一体に形成される。ストリッパー31は、パンチ20の加工部20bを囲う金属リング構造である。 The first spring holder 32 of the stripper structure 30 includes a cylindrical main body portion 32a that is screwed near the base end portion of the punch holder 22, and an annular flange portion 32b that integrally projects from the outer periphery of the main body portion 32a. Have The internal thread portion 24m on the inner periphery of the main body portion 32a is screwed onto the external thread portion 24n on the substantially outer periphery of the punch holder 22 to adjust the height, and then the main body portion 32a is fixed to the punch holder 22 with a set screw or the like. The second spring holder 33 includes a cylindrical main body portion 33a that is slidably inserted into the lower end portion of the punch holder 22 and the punch 20 and an annular flange portion 33b that integrally protrudes from the outer periphery of the main body portion 33a. The stripper 31 is integrally formed at the lower end of the main body 33a. The stripper 31 has a metal ring structure that surrounds the processed portion 20 b of the punch 20.
第1スプリングホルダ32のフランジ部32bと第2スプリングホルダ33のフランジ部33bの間に8本のスプリング34が等間隔で設置される。図4に示すように、8本のスプリング34の内の1本置きの4本に縦長のカラー35とボルト36が挿通され、ボルト36を第2スプリングホルダ33のフランジ部33bから第1スプリングホルダ32のフランジ部32bに締め込むことで、上下のフランジ部32b、33bの間隔を縮めて8本のスプリング34を圧縮し、ストリッパー31を下方に附勢するスプリング力を調整可能に得ている。 Eight springs 34 are installed at equal intervals between the flange portion 32 b of the first spring holder 32 and the flange portion 33 b of the second spring holder 33. As shown in FIG. 4, vertical collars 35 and bolts 36 are inserted into every other four of the eight springs 34, and the bolts 36 are inserted from the flange portion 33 b of the second spring holder 33 to the first spring holder. By tightening on the 32 flange portions 32b, the distance between the upper and lower flange portions 32b, 33b is reduced to compress the eight springs 34, and the spring force for urging the stripper 31 downward can be adjusted.
次に、上記実施の形態の作動を説明する。 Next, the operation of the above embodiment will be described.
図1に示すように、第2支持体3が上限位置にあるとき、第1支持体2の各金属板保持プレート8、8上に二枚の厚肉材の金属板1a、1bを載置して、図2に示すように各金属板1a、1bの端部をダイ10のブレード15上で重ねて、結合板厚約10mmの金属板1とする。この結合板厚約10mmの二枚の厚肉材を局部的に結合するためのダイ10とパンチ20のサイズは、例えば、図6(A)に示すダイ10のダイス穴17の内径D1が約15mm、パンチ20の加工部20bのパンチ径D2が約12mmである。 As shown in FIG. 1, when the second support 3 is in the upper limit position, two thick metal plates 1 a and 1 b are placed on the metal plate holding plates 8 and 8 of the first support 2. Then, as shown in FIG. 2, the end portions of the respective metal plates 1a and 1b are overlapped on the blade 15 of the die 10 to form the metal plate 1 having a combined plate thickness of about 10 mm. The size of the die 10 and the punch 20 for locally joining the two thick materials having a thickness of about 10 mm is, for example, about the inner diameter D1 of the die hole 17 of the die 10 shown in FIG. The punch diameter D2 of the processed portion 20b of the punch 20 is about 12 mm.
第2支持体3を外部からプレス機で下降させて、まずストリッパー31を金属板1の上面に当接させ、さらに第2支持体3を下降させて、図7に示すようにパンチ20とダイ10で金属板1を局部的に絞り加工する。この場合、ストリッパー31がスプリング34の弾力で金属板1を弾圧して変形を抑制した状態で、パンチ20の加工部20bの下端部が金属板1をダイス穴17に向けて絞り加工する。さらに第2支持体3を下降させて、図6(B)に示すように、パンチ20の加工部20bで金属板1の有底円筒状の加工部1’の底部を横方向に据え込み加工して展延させる。このようなパンチ20とダイ10による金属板1の局部的な絞り加工と据え込み加工の基本動作は図8(B)、(C)の場合と同様ゆえに詳細説明は省略する。結合板厚10mmの金属板1の絞り加工と据え込み加工に要する加圧力は約30トンが必要であり、このような強大な加圧力に上記実施の形態の結合装置は十分に耐え、かつ、加工された金属板1の結合部1’の形状、品質が安定する。 The second support 3 is lowered from the outside by a press machine. First, the stripper 31 is brought into contact with the upper surface of the metal plate 1, and the second support 3 is further lowered so that the punch 20 and the die are moved as shown in FIG. 10, the metal plate 1 is locally drawn. In this case, with the stripper 31 elastically pressing the metal plate 1 with the elasticity of the spring 34 to suppress deformation, the lower end of the processed portion 20 b of the punch 20 draws the metal plate 1 toward the die hole 17. Further, the second support 3 is lowered, and the bottom of the bottomed cylindrical processing portion 1 ′ of the metal plate 1 is installed in the horizontal direction by the processing portion 20b of the punch 20 as shown in FIG. 6B. And spread it. Since the basic operations of the local drawing and upsetting of the metal plate 1 by the punch 20 and the die 10 are the same as those in FIGS. 8B and 8C, detailed description thereof is omitted. The pressing force required for the drawing and upsetting of the metal plate 1 having a thickness of 10 mm requires about 30 tons, and the connecting device of the above embodiment sufficiently withstands such a strong pressing force, and The shape and quality of the joint 1 ′ of the processed metal plate 1 are stabilized.
約30トンの加圧力による結合部1’の底部の横方向の展延で、複数の各ブレード15が弾性オーリング16の弾力に抗して拡開して、金属板1の結合が終了する。その後、第2支持体3が上昇して、ストリッパー31で金属板1を弾圧したまま結合部1’からパンチ20が引き抜かれる。このとき、ストリッパー31は金属板1を約3トンの加圧力で加圧してパンチ20の引き抜きを安定したものにする。また、ストリッパー31の約3トンの加圧力は、第2スプリングホルダ33を下方に附勢する8本のスプリング34で確実に得られる。さらに第2支持体3を上昇させて、ストリッパー31を金属板1から離し、ダイ10から金属板1を離脱させると、各ブレード15がオーリング16の復元力で復帰する。3分割構造のブレード15の外周の上下3箇所に3本の弾性オーリング16を嵌着することで、絞り加工時と据え込み加工時の各ブレード15の拡開動作が安定して行われて、金属板1の結合部1’の形状、品質を良好にする。 With the lateral extension of the bottom of the coupling portion 1 ′ with a pressing force of about 30 tons, each of the plurality of blades 15 expands against the elastic force of the elastic O-ring 16, thereby completing the coupling of the metal plates 1. . Thereafter, the second support 3 is raised, and the punch 20 is pulled out from the coupling portion 1 ′ while the metal plate 1 is pressed by the stripper 31. At this time, the stripper 31 pressurizes the metal plate 1 with a pressing force of about 3 tons to stabilize the extraction of the punch 20. Further, a pressing force of about 3 tons of the stripper 31 is reliably obtained by the eight springs 34 that urge the second spring holder 33 downward. When the second support 3 is further raised, the stripper 31 is separated from the metal plate 1 and the metal plate 1 is detached from the die 10, each blade 15 is restored by the restoring force of the O-ring 16. By fitting three elastic O-rings 16 at three positions on the upper and lower sides of the blade 15 having a three-part structure, each blade 15 is stably expanded during drawing and upsetting. The shape and quality of the joint 1 ′ of the metal plate 1 are improved.
金属板1の結合板厚dの変更などで必要に応じて行われるパンチ20とダイ10の間隔調整は、図1の状態でパンチホルダ22の高さを調整することで行われる。この高さ調整は、第2支持体3のホルダ取付筒6に螺装したパンチホルダ22を正逆回転操作することで行われる。パンチホルダ22の回転操作は、パンチホルダ22に固定されたストリッパー構造体30を使って手動で行うようにすればよい。すなわち、図1の状態のとき、第2支持体3のホルダ取付筒6にあるセットビス25を緩め、ストリッパー構造体30の第1スプリングホルダ32を手動で正逆いずれかの方向に回転させる。第1スプリングホルダ32のフランジ部32bが大径ゆえに、このフランジ部32bの外周に手を掛けて回転させるようにすれば、特別な工具を使うことなく簡単、迅速に回転操作できて、パンチ20とダイ10の間隔の微調整が正確に行える。また、フランジ部32の外周部を手で回転操作しやすいハンドル構造とすることで、手動による回転操作が正確かつ便利に行えるようになる。 The adjustment of the distance between the punch 20 and the die 10 that is performed as necessary by changing the coupling plate thickness d of the metal plate 1 is performed by adjusting the height of the punch holder 22 in the state shown in FIG. This height adjustment is performed by rotating the punch holder 22 screwed to the holder mounting cylinder 6 of the second support 3 forward and backward. The rotation operation of the punch holder 22 may be performed manually using the stripper structure 30 fixed to the punch holder 22. That is, in the state of FIG. 1, the set screw 25 in the holder mounting cylinder 6 of the second support 3 is loosened, and the first spring holder 32 of the stripper structure 30 is manually rotated in either the forward or reverse direction. Since the flange portion 32b of the first spring holder 32 has a large diameter, if the hand is rotated on the outer periphery of the flange portion 32b, the punch 20 can be rotated easily and quickly without using a special tool. And fine adjustment of the distance between the dies 10 can be performed accurately. In addition, since the outer peripheral portion of the flange portion 32 has a handle structure that can be easily rotated by hand, manual rotation operation can be performed accurately and conveniently.
また、パンチ20に対してストリッパー31の相対高さを調整する場合は、パンチホルダ22に対して第1スプリングホルダ32を手動で回転操作することで行える。この場合、パンチホルダ22に第1スプリングホルダ32を固定していたセットビス(図示せず)を緩めて、パンチホルダ22に螺装された第1スプリングホルダ32を正逆回転操作すれば、パンチホルダ22に対してストリッパー構造体30の全体が軸方向移動してストリッパー31の高さが微調整される。この高さ調整も第1スプリングホルダ32の大径のフランジ部32bを利用することで簡単、迅速に行える。 In addition, when the relative height of the stripper 31 with respect to the punch 20 is adjusted, the first spring holder 32 can be manually rotated with respect to the punch holder 22. In this case, if a set screw (not shown) that has fixed the first spring holder 32 to the punch holder 22 is loosened and the first spring holder 32 screwed to the punch holder 22 is rotated forward and backward, The entire stripper structure 30 moves in the axial direction with respect to the holder 22, and the height of the stripper 31 is finely adjusted. This height adjustment can also be performed easily and quickly by using the large-diameter flange portion 32b of the first spring holder 32.
尚、本発明の金属板結合装置は、上記した実施の形態に限定されるものではなく、本発明の要旨を逸脱しない範囲内において種々変更を加え得ることは勿論である。 In addition, the metal plate coupling | bonding apparatus of this invention is not limited to above-described embodiment, Of course, in the range which does not deviate from the summary of this invention, a various change can be added.
1 金属板
1a、1b 金属板
1’ 結合部
2 第1支持体
3 第2支持体
4 ガイドロッド
6 ホルダ取付筒
7 ボルト
10 ダイ
11 ダイホルダ
14 アンビル
15 ブレード
16 弾性オーリング
17 ダイス穴
20 パンチ
21 ボルト
22 パンチホルダ
23m 雌ねじ部
23n 雄ねじ部
25 セットビス
27 ボルト穴
30 ストリッパー構造体
31 ストリッパー
32 第1スプリングホルダ
33 第2スプリングホルダ
34 スプリング
DESCRIPTION OF SYMBOLS 1 Metal plate 1a, 1b Metal plate 1 'Joint part 2 1st support body 3 2nd support body 4 Guide rod 6 Holder mounting cylinder 7 Bolt 10 Die 11 Die holder 14 Anvil 15 Blade 16 Elastic O-ring 17 Die hole 20 Punch 21 Bolt 22 Punch holder 23m Female thread part 23n Male thread part 25 Set screw 27 Bolt hole 30 Stripper structure 31 Stripper 32 First spring holder 33 Second spring holder 34 Spring
Claims (2)
互いに接近または離反する方向に相対移動可能な第1支持体および第2支持体と、
前記第1支持体に取付けられ、前記ダイを支持するダイホルダと、
前記第2支持体に基端部が螺装され、先端に同軸に前記パンチをボルトで固定したパンチホルダと、
前記パンチホルダの外周に装着されたストリッパー構造体とを具備し、
前記ストリッパー構造体は、前記パンチホルダの基端部側の外周に螺装した第1スプリングホルダと、パンチホルダの先端部外周に軸方向摺動可能に嵌挿され、先端にストリッパーを一体に有する第2スプリングホルダと、前記第1スプリングホルダと第2スプリングホルダの間に等間隔に装着され、第2スプリングホルダをパンチの先端側に向けて附勢する複数のスプリングとを有し、
前記第2支持体に螺装した前記パンチホルダを前記第1スプリングホルダで正逆いずれかの方向に回転させて前記パンチとダイの間隔を調整し、前記パンチホルダに螺装された前記第1スプリングホルダを正逆回転操作して前記パンチに対する前記ストリッパーの相対高さを調整する、
ことを特徴とする金属板結合装置。 A plurality of stacked metal plates are locally pressed using a pair of dies and punches, and a bottomed cylindrical bulge is formed by drawing and the bottom of the bulge is laterally formed by upsetting. A metal plate coupling device that extends and bonds,
A first support and a second support that are relatively movable in directions toward or away from each other;
A die holder attached to the first support and supporting the die;
A punch holder in which a base end portion is screwed to the second support, and the punch is coaxially fixed to a tip with a bolt;
A stripper structure mounted on the outer periphery of the punch holder;
The stripper structure is inserted into the outer periphery of the punch holder on the base end side of the punch holder and the outer periphery of the tip end of the punch holder so as to be slidable in the axial direction, and has a stripper integrally at the tip. a second spring holder, said first spring holder and mounted at regular intervals during the second spring holder, have a plurality of springs which biasing toward the second spring holder on the distal end side of the punch,
The punch holder screwed on the second support is rotated in either the forward or reverse direction by the first spring holder to adjust the distance between the punch and the die, and the first screw screwed on the punch holder. Adjusting the relative height of the stripper with respect to the punch by rotating the spring holder forward and backward,
The metal plate coupling device characterized by the above-mentioned.
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JP5279531B2 (en) * | 2009-01-29 | 2013-09-04 | 日新製鋼株式会社 | Method for caulking and joining metal plates |
CN102626742B (en) * | 2012-04-13 | 2013-11-13 | 苏州托克斯冲压设备有限公司 | Stamping round dot connecting combined die for metal plate |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS52118477U (en) * | 1976-03-05 | 1977-09-08 | ||
JPH0248238U (en) * | 1988-09-29 | 1990-04-03 | ||
JPH0739960A (en) * | 1993-07-27 | 1995-02-10 | Miyagi:Kk | Forming punching device |
JPH08267157A (en) * | 1995-03-30 | 1996-10-15 | Amada Metrecs Co Ltd | Punching die |
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Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS52118477U (en) * | 1976-03-05 | 1977-09-08 | ||
JPH0248238U (en) * | 1988-09-29 | 1990-04-03 | ||
JPH0739960A (en) * | 1993-07-27 | 1995-02-10 | Miyagi:Kk | Forming punching device |
JPH08267157A (en) * | 1995-03-30 | 1996-10-15 | Amada Metrecs Co Ltd | Punching die |
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