JP2002326589A - Method of forming body panel - Google Patents
Method of forming body panelInfo
- Publication number
- JP2002326589A JP2002326589A JP2001133583A JP2001133583A JP2002326589A JP 2002326589 A JP2002326589 A JP 2002326589A JP 2001133583 A JP2001133583 A JP 2001133583A JP 2001133583 A JP2001133583 A JP 2001133583A JP 2002326589 A JP2002326589 A JP 2002326589A
- Authority
- JP
- Japan
- Prior art keywords
- thickness
- rolling
- plate
- plate thickness
- forming
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は板厚の異なるブラン
ク材を用いた車体パネルの成形方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for forming a body panel using blanks having different thicknesses.
【０００２】[0002]
【従来の技術】板厚の異なる板材を製造する方法には、
例えば、特開昭５９−２３２６１１号公報「板厚変更点
トラッキング修正方法」に示されたものがある。同公報
の第３頁左上欄第１５行〜同左下欄第１６行によれば、
この板厚変更点トラッキング修正方法は次の通りであ
る。ただし、以下の説明は原文の要約である。圧延機３
（符号は公報記載のものを流用した。以下同様。）の正
転で正パス圧延し、逆転で逆パス圧延し、このような圧
延を繰り返して板厚が異なる圧延材１（第２図）を形成
する。その際に、ロール間隔の変更点が圧延機３の真下
に到着したのを検出するとともに、調整し、板厚変更開
始点のトラッキングを行う。2. Description of the Related Art A method for manufacturing plate materials having different thicknesses includes:
For example, there is a method disclosed in Japanese Patent Application Laid-Open No. Sho 59-232611, entitled "Tracking correction method for thickness change point". According to the same publication, page 3, upper left column, line 15 to lower left column, line 16,
The method of correcting the tracking of the thickness change point is as follows. However, the following is a summary of the original text. Rolling mill 3
(The reference numerals used in the publication are used. The same applies hereinafter.) Forward rolling is performed in the forward direction, and reverse pass rolling is performed in the reverse direction. Such rolling is repeated to obtain a rolled material 1 having a different sheet thickness (FIG. 2). To form At this time, it is detected that the change point of the roll interval has arrived immediately below the rolling mill 3 and adjusted, and tracking of the start point of the change of the sheet thickness is performed.
【０００３】[0003]
【発明が解決しようとする課題】しかし、上記公報の方
法では、正パス圧延ならびに逆パス圧延を行うために、
圧延材１の圧延方向の長さにばらつきが生じやすい。長
さのばらつきに伴い段差部の位置が左または右へ移動す
ると、後工程のプレス成形の際、圧延材１の段差部を金
型の所定位置に一致させ難く、車体パネルの寸法精度は
低下する。However, according to the method disclosed in the above-mentioned publication, since forward pass rolling and reverse pass rolling are performed,
The length of the rolled material 1 in the rolling direction tends to vary. When the position of the stepped portion moves to the left or right due to the variation in length, it is difficult to match the stepped portion of the rolled material 1 to a predetermined position of the die during the press forming in a subsequent process, and the dimensional accuracy of the vehicle body panel is reduced. I do.
【０００４】そこで、本発明の目的は、車体パネルの寸
法精度の向上を図るこができる車体パネルの成形方法を
提供することにある。SUMMARY OF THE INVENTION It is an object of the present invention to provide a method of forming a body panel which can improve the dimensional accuracy of the body panel.
【０００５】[0005]
【課題を解決するための手段】上記目的を達成するため
に請求項１は、３種類の異なる板厚を有する平板を圧延
装置で形成し、プレス機で所定の形状に成形する車体パ
ネルの成形方法であって、平板を一方へ送りながら第１
板厚部および第２板厚部を、第１板厚部の板厚ならびに
第３板厚部の板厚との中間の板厚に圧延する第１圧延工
程と、平板を他方へ送りながら第２板厚部の板厚に圧延
する第２圧延工程と、第１板厚部ならびに第２板厚部の
境界で圧延ロール間隔を第１板厚部の板厚用に設定し、
この条件で平板を他方へ送りながら第１板厚部の板厚に
圧延する第３圧延工程と、得られたブランク材をプレス
機で所定の形状に成形する成形工程と、からなる。In order to achieve the above object, a first aspect of the present invention is to form a vehicle body panel in which three types of flat plates having different thicknesses are formed by a rolling machine and formed into a predetermined shape by a press machine. A method of feeding a flat plate to one side and
A first rolling step of rolling the plate thickness portion and the second plate thickness portion to a plate thickness intermediate between the plate thickness of the first plate thickness portion and the plate thickness of the third plate thickness portion; A second rolling step of rolling to a thickness of the two thick portions, and a rolling roll interval at the boundary between the first thick portion and the second thick portion for the thickness of the first thick portion,
A third rolling step of rolling the flat plate to the thickness of the first thick portion while feeding the flat plate to the other under these conditions, and a forming step of forming the obtained blank into a predetermined shape by a press machine.
【０００６】第１圧延工程では、平板を一方へ送りなが
ら、圧延装置の一方側へ中間の板厚に圧延した部分を出
すので、圧延装置の他方側に残した平板を第３板厚部と
して使用すると、平板の他方の端の基準部から第３板厚
部の終端までの長さを圧延方向の延びに関係することな
く決定することができ、第３板厚部の長さの精度は向上
する。[0006] In the first rolling step, while the flat plate is fed to one side, a portion which has been rolled to an intermediate plate thickness on one side of the rolling device is taken out. When used, the length from the reference portion at the other end of the flat plate to the end of the third thick portion can be determined regardless of the elongation in the rolling direction, and the accuracy of the length of the third thick portion can be determined. improves.
【０００７】第２圧延工程では、第１圧延工程の完了位
置でロールを逆回転させ、平板を他方へ送りながら、圧
延装置の他方側に第２板厚部の範囲のみを第２板厚部の
板厚に圧延して出し、基準部から第２板厚部の終端まで
の長さを決定する。従って、第２板厚部の長さを正確に
確保するのは容易である。In the second rolling step, the roll is reversely rotated at a position where the first rolling step is completed, and while the flat plate is fed to the other side, only the range of the second thick part is applied to the other side of the rolling device. And the length from the reference portion to the end of the second thickness portion is determined. Therefore, it is easy to accurately secure the length of the second plate thickness portion.
【０００８】成形工程では、第１〜第３圧延工程で形成
したブランク材を用いるので、車体パネルの寸法精度は
向上する。すなわち、プレス機の金型にブランク材をセ
ットする際、基準部を用いて位置決めすると、金型の所
定位置に第１板厚部、第２板厚部、第３板厚部を一致さ
せることができ、塑性加工後の車体パネルの寸法精度は
向上する。In the forming step, the blanks formed in the first to third rolling steps are used, so that the dimensional accuracy of the vehicle body panel is improved. That is, when setting the blank using the reference portion when setting the blank material in the die of the press machine, the first, second, and third thickness portions are made to coincide with predetermined positions of the die. The dimensional accuracy of the body panel after the plastic working is improved.
【０００９】[0009]
【発明の実施の形態】本発明の実施の形態を添付図に基
づいて以下に説明する。図１は本発明に係る車体パネル
の成形方法で製造したブランク材の正面図であり、ブラ
ンク材１０は、図の左側、一方１０ａから順に第１板厚
部１１、第２板厚部１２、第３板厚部１３を形成し、一
つの平板１４に３種類の異なる板厚を設けたものであ
る。１５は、ブランク材１０の他方１０ｂの端に設けた
基準部であるとともに、平板１４の基準部であり、ｔ１
は第１板厚部１１の板厚、ｔ２は第２板厚部１２の板
厚、ｔ３は第３板厚部１３の板厚である。Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a front view of a blank material manufactured by the method of forming a body panel according to the present invention. The third plate thickness portion 13 is formed, and one plate 14 is provided with three different plate thicknesses. Reference numeral 15 denotes a reference portion provided at the end of the other side 10b of the blank material 10 and a reference portion of the flat plate 14, and t1
Is the thickness of the first thickness portion 11, t2 is the thickness of the second thickness portion 12, and t3 is the thickness of the third thickness portion 13.
【００１０】ここで、板厚の一例を示すと、例えば、第
１板厚部１１の板厚ｔ１を１．２ｍｍとし、第２板厚部
１２の板厚ｔ２を０．９ｍｍとし、第３板厚部１３の板
厚ｔ３を２．３ｍｍとする。Here, as an example of the plate thickness, for example, the plate thickness t1 of the first plate portion 11 is 1.2 mm, the plate thickness t2 of the second plate portion 12 is 0.9 mm, and the third plate portion 12 is 0.9 mm. The thickness t3 of the thickness portion 13 is set to 2.3 mm.
【００１１】図２は本発明に係る車体パネルの成形方法
のフローチャートであり、ＳＴはステップを示す。 ＳＴ０１：平板を一方へ送りながら第１板厚部の板厚な
らびに第３板厚部の板厚との中間の板厚に圧延する。 ＳＴ０２：平板を他方へ送りながら第２板厚部の板厚に
圧延する。 ＳＴ０３：第１板厚部ならびに第２板厚部の境界で圧延
ロール間隔を第１板厚部の板厚用に設定し、この条件で
平板を他方へ送りながら第１板厚部の板厚に圧延する。 ＳＴ０４：得られたブランク材をプレス機で所定の形状
に成形する。 次に、ＳＴ０１〜ＳＴ０４を具体的に説明する。FIG. 2 is a flowchart of a method of forming a vehicle body panel according to the present invention, where ST indicates steps. ST01: Rolling the flat plate to one side while rolling the plate to a thickness intermediate between the thickness of the first thick portion and the thickness of the third thick portion. ST02: Rolling the flat plate to the other thickness while feeding the flat plate to the other side. ST03: The rolling roll interval is set for the thickness of the first thickness portion at the boundary between the first thickness portion and the second thickness portion, and the thickness of the first thickness portion is fed while the flat plate is sent to the other under the conditions. Rolled. ST04: The obtained blank is formed into a predetermined shape by a press. Next, ST01 to ST04 will be specifically described.
【００１２】図３（ａ）〜（ｄ）は本発明に係る車体パ
ネルの成形方法の第１説明図であり、圧延の模式図であ
る。 （ａ）：まず、平板１４を圧延装置２１にセットする。
具体的には、圧延装置２１は、上ワークロール２２と、
下ワークロール２３と、圧延装置２１の一方側２１ａに
設けた送りロール２４，２５と、他方側２１ｂに設けた
ガイドロール２６，２７ならびにスライド可能なクラン
プ手段３１と、図に示していない制御盤ならびに操作盤
と、を有する。この操作盤で予め所望の圧延条件、例え
ば、圧延ロール間隔であるところのロールギャップをＧ
１、上・下ワークロール２２，２３の回転数をＮに設定
する。FIGS. 3 (a) to 3 (d) are first explanatory views of a method for forming a vehicle body panel according to the present invention, and are schematic views of rolling. (A): First, the flat plate 14 is set on the rolling device 21.
Specifically, the rolling device 21 includes an upper work roll 22 and
A lower work roll 23, feed rolls 24 and 25 provided on one side 21a of the rolling device 21, guide rolls 26 and 27 provided on the other side 21b, and slidable clamp means 31, and a control panel (not shown) And an operation panel. In this operation panel, desired roll conditions are set in advance, for example, a roll gap at a roll roll interval is set to G.
1. The number of rotations of the upper and lower work rolls 22 and 23 is set to N.
【００１３】その次に、圧延装置２１の他方側２１ｂに
平板１４を二点鎖線で示すように載せるとともに、平板
１４の一端３２をクランプ手段３１に通し、一端３２を
ガイドロール２７に載せる。そして、操作盤の所定ぼた
んを「ＯＮ」にし、クランプ手段３１によって他端３３
を把持した状態で、平板１４を矢印の如く所定の速度
Ｖで上・下ワークロール２２，２３へ送るとともに、ガ
イドロール２６，２７で一端３２を挟み、平板１４を案
内する。なお、ガイドロール２６，２７を駆動させず
に、従動としたが、ガイドロール２６，２７の構成は任
意である。Next, the flat plate 14 is placed on the other side 21 b of the rolling device 21 as shown by a two-dot chain line, and one end 32 of the flat plate 14 is passed through the clamp means 31, and one end 32 is placed on the guide roll 27. Then, the predetermined button on the operation panel is turned “ON”, and the other end 33 is
While holding the flat plate 14, the flat plate 14 is sent to the upper and lower work rolls 22 and 23 at a predetermined speed V as shown by arrows, and one end 32 is sandwiched between the guide rolls 26 and 27 to guide the flat plate 14. Although the guide rolls 26 and 27 are driven without being driven, the configuration of the guide rolls 26 and 27 is arbitrary.
【００１４】（ｂ）：引き続き、第１圧延工程を開始
し、平板１４を一方（矢印の方向）へ送りながら第１
板厚部１１ならびに第２板厚部１２を圧延する。詳細に
は、上・下ワークロール２２，２３に平板１４の一端３
２を噛み込ませるとともに、圧延し、圧延装置２１の一
方側２１ａに出てきた一端３２を送りロール２４，２５
に通して支持しつつ、送り、第１板厚部１１の板厚ｔ１
（図１参照）と第３板厚部１３の板厚ｔ３との中間の板
厚ｔ４を形成し続け、上・下ワークロール２２，２３の
回転軸心間に長さＬ１の終点３４が達した時点で送りを
一旦止める。つまり、上・下ワークロール２２，２３の
回転ならびにクランプ手段３１の送りを止める。(B): Subsequently, the first rolling step is started, and the flat plate 14 is fed in one direction (the direction of the arrow) while the first
The thick part 11 and the second thick part 12 are rolled. Specifically, one end 3 of the flat plate 14 is attached to the upper and lower work rolls 22 and 23.
2 is rolled, and one end 32 coming out on one side 21 a of the rolling device 21 is fed to the feed rolls 24, 25.
The sheet thickness t1 of the first sheet thickness portion 11 is fed while being supported through
(See FIG. 1) and the intermediate thickness t4 between the thickness t3 of the third thickness portion 13 and the end point 34 of the length L1 reaches between the rotation axes of the upper and lower work rolls 22 and 23. Stop feeding at the point when it is done. That is, the rotation of the upper and lower work rolls 22 and 23 and the feed of the clamp means 31 are stopped.
【００１５】ここで、板厚ｔ４の一例を示すと、例え
ば、第１板厚部１１（図１参照）の板厚ｔ１を１．２ｍ
ｍとし、第３板厚部１３の板厚ｔ３を２．３ｍｍとした
場合、第１板厚部１１の板厚ｔ１と第３板厚部１３の板
厚ｔ３との中間の板厚としての板厚ｔ４は、１．８ｍｍ
程度にすればよい。An example of the plate thickness t4 is as follows. For example, the plate thickness t1 of the first plate thickness portion 11 (see FIG. 1) is set to 1.2 m.
m, and when the plate thickness t3 of the third plate portion 13 is 2.3 mm, an intermediate plate thickness between the plate thickness t1 of the first plate portion 11 and the plate thickness t3 of the third plate portion 13 is set. The thickness t4 is 1.8 mm
It should just be about.
【００１６】なお、長さＬ１を検出する手段は任意であ
る。例えば、基準部１５を図に示していないセンサによ
って接触または非接触で直接検出してもよく、クランプ
手段３１を直接検出してもよく、クランプ手段３１の送
り量をセンサで計測してもよく、これらを組み合わせて
もよい。The means for detecting the length L1 is optional. For example, the reference portion 15 may be directly detected in a contact or non-contact manner by a sensor (not shown), the clamp unit 31 may be directly detected, or the feed amount of the clamp unit 31 may be measured by a sensor. , May be combined.
【００１７】（ｃ）：続けて、第３板厚部１３の終端段
差部１３ａを形成する。具体的には、長さＬ１の終点３
４の位置で上ワークロール２２を矢印の如く圧下し、
ロールギャップをＧ２に変更することで、第３板厚部１
３の終端段差部１３ａの形成が完了する。(C): Subsequently, an end step 13a of the third thick portion 13 is formed. Specifically, the end point 3 of the length L1
At the position of 4, lower the upper work roll 22 as shown by the arrow,
By changing the roll gap to G2, the third thick portion 1
The formation of the third terminal step 13a is completed.
【００１８】このように、第１圧延工程では、平板１４
を一方（矢印の方向）へ送りながら第１板厚部１１お
よび第２板厚部１２を、第１板厚部１１の板厚ｔ１なら
びに第３板厚部１３の板厚ｔ３との中間の板厚ｔ４に圧
延するので、圧延装置２１の他方側２１ｂに残した平板
１４を第３板厚部１３として使用すると、一方側２１ａ
に出てきた板厚ｔ４の延びに関係することなく、基準部
１５に対する第３板厚部１３の終端段差部１３ａの位置
を検出することができ、第３板厚部１３の終端段差部１
３ａの位置を正確に決定することができるとともに、第
３板厚部１３の長さＬ１を正確に確保することができ
る。As described above, in the first rolling step, the flat plate 14
While the first thick portion 11 and the second thick portion 12 are in the middle of the thickness t1 of the first thick portion 11 and the thickness t3 of the third thick portion 13. Since the plate is rolled to a plate thickness t4, if the flat plate 14 left on the other side 21b of the rolling device 21 is used as the third plate thickness portion 13, one side 21a
Irrespective of the extension of the plate thickness t4, the position of the terminal step 13a of the third plate 13 with respect to the reference portion 15 can be detected, and the terminal step 1 of the third plate 13 can be detected.
The position of 3a can be accurately determined, and the length L1 of the third plate portion 13 can be secured accurately.
【００１９】（ｄ）：引き続き、第２圧延工程を開始
し、平板１４を他方側２１ｂへ送りながら第２板厚部１
２の板厚ｔ２に圧延する。詳しくは、ロールギャップＧ
２の状態で上・下ワークロール２２，２３を逆に回転
（矢印，の方向）させ、板厚ｔ２を形成するととも
に、第２板厚部１２を形成しながら、クランプ手段３１
で平板１４の他端３３を矢印の如く引っ張りつつ、圧
延を続ける。(D): Subsequently, the second rolling step is started, and the second thick portion 1 is fed while the flat plate 14 is being sent to the other side 21b.
Rolled to a sheet thickness t2 of 2. For details, see Roll Gap
In the state of 2, the upper and lower work rolls 22 and 23 are rotated in the reverse direction (in the direction of the arrow) to form the plate thickness t2 and the clamping means 31 while forming the second plate thickness portion 12.
The rolling is continued while pulling the other end 33 of the flat plate 14 as shown by the arrow.
【００２０】図４（ａ）〜（ｄ）は本発明に係る車体パ
ネルの成形方法の第２説明図であり、圧延の模式図であ
る。 （ａ）：第２板厚部１２を完成させる。第２板厚部１２
を他方側２１ｂへ送り出し、上・下ワークロール２２，
２３の回転軸心間に長さＬ２の終点３５が達した時点で
送りを一旦止める。つまり、板厚ｔ４から板厚ｔ２へ板
厚を薄くし、長さＬ２の位置で第２板厚部１２が完成す
る。FIGS. 4 (a) to 4 (d) are second explanatory views of the method for forming a vehicle body panel according to the present invention, and are schematic views of rolling. (A): The second plate thickness part 12 is completed. 2nd thickness part 12
To the other side 21b, and the upper and lower work rolls 22,
The feed is temporarily stopped when the end point 35 of the length L2 reaches between the 23 rotation axis centers. That is, the thickness is reduced from the thickness t4 to the thickness t2, and the second thickness portion 12 is completed at the position of the length L2.
【００２１】このように第２圧延工では、平板１４を他
方（矢印の方向）へ送りながら第２板厚部１２の板厚
ｔ２に圧延するので、他方側２１ｂに第２板厚部１２を
出しつつ、基準部１５に対する第２板厚部１２の終端段
差部１２ａの位置を検出することができ、第２板厚部１
２の終端段差部１２ａの位置を正確に決定することがで
きるとともに、第２板厚部１２の長さＬ２を正確に確保
することができる。As described above, in the second rolling work, the flat plate 14 is rolled to the thickness t2 of the second thick portion 12 while being fed to the other side (in the direction of the arrow), so that the second thick portion 12 is formed on the other side 21b. The position of the terminal step 12a of the second thick portion 12 with respect to the reference portion 15 can be detected while the second thick portion 1
The position of the second terminal step portion 12a can be accurately determined, and the length L2 of the second plate thickness portion 12 can be secured accurately.
【００２２】また、第２圧延工程では、第１圧延工程で
形成した板厚ｔ４を用いて板厚ｔ４をさらに板厚ｔ２ま
で薄くするので、第３板厚部１３の板厚ｔ３に対して高
い圧下率を達成することができる。その結果、比較的小
さな圧下荷重で高い圧下率を達成することがで、圧延装
置の小型化を図ることができる。In the second rolling step, the sheet thickness t4 is further reduced to the sheet thickness t2 by using the sheet thickness t4 formed in the first rolling step. High rolling reduction can be achieved. As a result, a high rolling reduction can be achieved with a relatively small rolling load, and the size of the rolling device can be reduced.
【００２３】（ｂ）：次いで、第３圧延工程を開始し、
ロールギャップの変更を行う。つまり、一旦停止した状
態で第１板厚部１１ならびに第２板厚部１２の境界とし
ての終端段差部１２ａでロールギャップを第１板厚部１
１の板厚ｔ１（図１参照）用に設定する。ここでは、上
ワークロール２２を矢印の如く上昇させ、ロールギャ
ップをＧ３に設定した。(B): Next, a third rolling step is started,
Change the roll gap. In other words, in a state where the first thickness portion 11 and the second thickness portion 12 are temporarily stopped, the roll gap is reduced by the terminal step 12a as a boundary between the first thickness portion 11 and the second thickness portion 12.
It is set for a plate thickness t1 of 1 (see FIG. 1). Here, the upper work roll 22 was raised as shown by the arrow, and the roll gap was set to G3.
【００２４】（ｃ）：続けて、第１板厚部１１を形成す
る。具体的には、ロールギャップＧ３の条件で平板１４
を他方（矢印の方向）へ送りながら第１板厚部１１の
板厚ｔ１に圧延する。つまり、板厚ｔ４から板厚ｔ１へ
板厚を薄くする。(C): Subsequently, the first plate thickness portion 11 is formed. Specifically, the flat plate 14 is rolled under the condition of the roll gap G3.
While rolling in the other direction (in the direction of the arrow) to the thickness t1 of the first thickness portion 11. That is, the thickness is reduced from the thickness t4 to the thickness t1.
【００２５】（ｄ）：引き続き、平板１４を他方側２１
ｂへ送り、ロールギャップＧ３の上・下ワークロール２
２，２３から第１板厚部１１を全て送り出して第１板厚
部１１を完成させると、ブランク材１０は完成する。そ
して、完成したブランク材１０を圧延装置２１から取り
出し、次工程の成形工程へ搬送する。(D): Subsequently, the flat plate 14 is
b, upper and lower work roll 2 of roll gap G3
When the first thick portion 11 is completed by sending out all the first thick portions 11 from 2, 23, the blank material 10 is completed. Then, the completed blank 10 is taken out of the rolling device 21 and transported to the next forming step.
【００２６】図５は本発明に係る車体パネルの成形方法
の第３説明図であり、ブランク材１０の基準部１５から
長さＬ１で第３板厚部１３の終端段差部１３ａを形成
し、基準部１５から長さＬ２で第２板厚部１２の終端段
差部１２ａを形成したことを示し、また、このブランク
材１０を次工程の成形工程で成形する際には、基準部１
５を二点鎖線で示す位置決め部３６，３６に矢印，
の如く当てて、ブランク材１０をセットすることを示
す。FIG. 5 is a third explanatory view of the method of forming a vehicle body panel according to the present invention. In FIG. 5, a terminal step 13a of the third thick part 13 is formed with a length L1 from the reference part 15 of the blank material 10, This shows that the end step 12a of the second thick part 12 is formed with the length L2 from the reference part 15 and when the blank material 10 is formed in the next forming step, the reference part 1 is formed.
5 are indicated by two-dot chain lines,
To set the blank material 10 as shown in FIG.
【００２７】図６は本発明に係る車体パネルの成形方法
の第４説明図であり、プレス成形の一例を示す模式図で
ある。次に、成形工程を開始し、ブランク材１０をプレ
ス機４１で所定の形状に成形する。具体的には、プレス
機４１に取り付けたプレス金型４２（上金型４２ａ、下
金型４２ｂ、型面４２ｃ，４２ｃ）の位置決め部３６に
ブランク材１０の基準部１５を矢印の如く当てなが
ら、下金型４２ｂに載せる。その後、上金型４２ａを下
降させてブランク材１０を所定の形状に成形して、所定
の車体パネル４３を得る。若しくは、さらにプレス成形
を続けて所定の車体パネルを得る。FIG. 6 is a fourth explanatory view of the method of forming a vehicle body panel according to the present invention, and is a schematic view showing an example of press forming. Next, the forming process is started, and the blank material 10 is formed into a predetermined shape by the press 41. Specifically, the reference portion 15 of the blank material 10 is applied to the positioning portion 36 of the press die 42 (the upper die 42a, the lower die 42b, the die surfaces 42c, 42c) attached to the press machine 41 as shown by an arrow. Is placed on the lower mold 42b. Thereafter, the upper mold 42a is lowered to form the blank material 10 into a predetermined shape, and a predetermined vehicle body panel 43 is obtained. Alternatively, press forming is further continued to obtain a predetermined body panel.
【００２８】このようにブランク材１０を成形する成形
工程では、基準部１５をプレス金型４２の位置決め部３
６に当てると、プレス金型４２の型面４２ｃ，４２ｃの
所定位置に第３板厚部１３の終端段差部１３ａならびに
第２板厚部１２の終端段差部１２ａを正確に一致させる
ことができ、車体パネルの寸法精度の向上を図るこがで
きる。すなわち、前工程の第１〜第３圧延工程で基準部
１５からの長さＬ１およびＬ２を正確に確保し同時に、
基準部１５に対する終端段差部１３ａの位置ならびに終
端段差部１２ａの位置を正確に決定したので、塑性加工
後の車体パネルの寸法精度の向上を図るこができる。In the forming step for forming the blank material 10 as described above, the reference portion 15 is
6, the terminal step 13a of the third plate 13 and the terminal step 12a of the second plate 12 can be accurately aligned with predetermined positions of the mold surfaces 42c, 42c of the press die 42. Thus, the dimensional accuracy of the vehicle body panel can be improved. That is, the lengths L1 and L2 from the reference portion 15 are accurately secured in the first to third rolling steps in the preceding step, and at the same time,
Since the position of the terminal step 13a and the position of the terminal step 12a with respect to the reference part 15 are accurately determined, the dimensional accuracy of the vehicle body panel after plastic working can be improved.
【００２９】尚、本発明の実施の形態に示した図１のブ
ランク材１０では、板厚をｔ１，ｔ２，ｔ３の３種類と
したが、３種類に限定するものではない。車体パネルの
成形方法に用いた圧延装置２１、プレス機４１、プレス
金型４２の各々の構成は一例である。In the blank 10 shown in FIG. 1 according to the embodiment of the present invention, the plate thicknesses are t1, t2, and t3. However, the thickness is not limited to three. Each configuration of the rolling device 21, the press 41, and the press die 42 used in the method of forming the body panel is an example.
【００３０】[0030]
【発明の効果】本発明は上記構成により次の効果を発揮
する。請求項１では、車体パネルの成形方法は、平板を
一方へ送りながら第１板厚部および第２板厚部を、第１
板厚部の板厚ならびに第３板厚部の板厚との中間の板厚
に圧延する第１圧延工程と、平板を他方へ送りながら第
２板厚部の板厚に圧延する第２圧延工程と、第１板厚部
ならびに第２板厚部の境界で圧延ロール間隔を第１板厚
部の板厚用に設定し、この条件で平板を他方へ送りなが
ら第１板厚部の板厚に圧延する第３圧延工程と、得られ
たブランク材をプレス機で所定の形状に成形する成形工
程と、からなる。第１圧延工程では、平板を一方へ送り
ながら、圧延装置の一方側へ中間の板厚に圧延した部分
を出すので、圧延装置の他方側に残した平板を第３板厚
部として使用すると、平板の他方の端の基準部から第３
板厚部の終端までの長さを圧延方向の延びに関係するこ
となく決定することができる。従って、第３板厚部の長
さを正確に確保することができるとともに、第３板厚部
の終端段差部の位置を正確に決定することができる。According to the present invention, the following effects are exhibited by the above configuration. According to the first aspect of the present invention, a method of forming a vehicle body panel includes the steps of:
A first rolling step of rolling to a thickness intermediate between the thickness of the thick portion and the thickness of the third thick portion, and a second rolling of rolling to a thickness of the second thick portion while feeding the flat plate to the other side. In the process, the rolling roll interval is set for the thickness of the first thick portion at the boundary between the first thick portion and the second thick portion, and the plate of the first thick portion is fed while the flat plate is being fed to the other under these conditions. It comprises a third rolling step of rolling to a thickness and a forming step of forming the obtained blank into a predetermined shape by a press. In the first rolling step, while the flat plate is fed to one side, a portion that has been rolled to one side of the rolling device to have an intermediate thickness is taken out. Therefore, when the flat plate left on the other side of the rolling device is used as a third plate thickness portion, Third from the reference part at the other end of the flat plate
The length to the end of the sheet thickness portion can be determined independently of the elongation in the rolling direction. Therefore, the length of the third thick portion can be accurately secured, and the position of the terminal step portion of the third thick portion can be accurately determined.
【００３１】第２圧延工程では、第１圧延工程の完了位
置でロールを逆回転させ、平板を他方へ送りながら、圧
延装置の他方側に第２板厚部の範囲のみを第２板厚部の
板厚に圧延して出し、基準部から第２板厚部の終端まで
の長さを決定する。従って、第２板厚部の長さを正確に
確保することができるとともに、第２板厚部の終端段差
部の位置を正確に決定することができる。In the second rolling step, the roll is reversely rotated at the position where the first rolling step is completed, and while the flat plate is fed to the other side, only the range of the second thick part is applied to the other side of the rolling device. And the length from the reference portion to the end of the second thickness portion is determined. Therefore, the length of the second plate thickness portion can be accurately secured, and the position of the terminal step portion of the second plate thickness portion can be accurately determined.
【００３２】また、第２圧延工程では、第１圧延工程で
形成した中間の板厚をより薄い第２板厚部の板厚に圧延
するので、第３板厚部の板厚に対して高い圧下率を達成
することができる。その結果、比較的小さな圧下荷重で
高圧下率を得ることができ、圧延装置の小型化を図るこ
とができる。Further, in the second rolling step, the intermediate sheet thickness formed in the first rolling step is rolled to a smaller sheet thickness of the second sheet thickness part, so that it is higher than the sheet thickness of the third sheet thickness part. A reduction can be achieved. As a result, a high reduction rate can be obtained with a relatively small reduction load, and the size of the rolling device can be reduced.
【００３３】成形工程では、前工程の第１〜第３圧延工
程で製造したブランク材を用いるので、車体パネルの寸
法精度の向上を図るこができる。すなわち、プレス機の
金型にブランク材をセットする際、基準部を用いて位置
決めすると、金型の所定位置に第１板厚部、第２板厚
部、第３板厚部を一致させることができ、塑性加工後の
車体パネルの寸法精度の向上を図るこができる。In the forming step, since the blanks manufactured in the first to third rolling steps in the preceding step are used, the dimensional accuracy of the vehicle body panel can be improved. That is, when setting the blank using the reference portion when setting the blank material in the die of the press machine, the first, second, and third thickness portions are made to coincide with predetermined positions of the die. Thus, the dimensional accuracy of the vehicle body panel after the plastic working can be improved.
【図１】本発明に係る車体パネルの成形方法で製造した
ブランク材の正面図FIG. 1 is a front view of a blank material manufactured by a method of forming a body panel according to the present invention.
【図２】本発明に係る車体パネルの成形方法のフローチ
ャートFIG. 2 is a flowchart of a vehicle body panel forming method according to the present invention.
【図３】本発明に係る車体パネルの成形方法の第１説明
図FIG. 3 is a first explanatory view of a method of forming a vehicle body panel according to the present invention.
【図４】本発明に係る車体パネルの成形方法の第２説明
図FIG. 4 is a second explanatory view of the method of forming a vehicle body panel according to the present invention.
【図５】本発明に係る車体パネルの成形方法の第３説明
図FIG. 5 is a third explanatory view of the method for forming a vehicle body panel according to the present invention.
【図６】本発明に係る車体パネルの成形方法の第４説明
図FIG. 6 is a fourth explanatory view of the method of forming a vehicle body panel according to the present invention.
１０…ブランク材、１１…第１板厚部、１２…第２板厚
部、１２ａ…境界（第２板厚部の終端段差部）、１３…
第３板厚部、１４…平板、２１…圧延装置、４１…プレ
ス機、４３…車体パネル、Ｇ１，Ｇ２，Ｇ３…圧延ロー
ル間隔（ロールギャップ）、ｔ１…第１板厚部の板厚、
ｔ２…第２板厚部の板厚、ｔ３…第３板厚部の板厚、ｔ
４…第１板厚部の板厚ならびに第３板厚部の板厚との中
間の板厚。10 blank material, 11 first plate thickness portion, 12 second plate thickness portion, 12a boundary (end step portion of second plate thickness portion), 13
Third plate thickness portion, 14 flat plate, 21 rolling machine, 41 press machine, 43 body panel, G1, G2, G3 rolling gap (roll gap), t1 plate thickness of first plate thickness portion,
t2: thickness of the second thickness portion, t3: thickness of the third thickness portion, t
4 ... A thickness between the first thickness portion and the third thickness portion.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 沼野 正慎 埼玉県狭山市新狭山１丁目10番地１ ホン ダエンジニアリング株式会社内 Ｆターム(参考） 3D114 AA01 BA01 CA03 4E002 AD11 BD01 ────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Masashin Numano 1-10-1 Shinsayama, Sayama-shi, Saitama F-term (reference) in Honda Engineering Co., Ltd. 3D114 AA01 BA01 CA03 4E002 AD11 BD01
Claims (1)
装置で形成し、プレス機で所定の形状に成形する車体パ
ネルの成形方法であって、 平板を一方へ送りながら第１板厚部および第２板厚部
を、前記第１板厚部の板厚ならびに第３板厚部の板厚と
の中間の板厚に圧延する第１圧延工程と、 前記平板を他方へ送りながら前記第２板厚部の板厚に圧
延する第２圧延工程と、 前記第１板厚部ならびに第２板厚部の境界で圧延ロール
間隔を第１板厚部の板厚用に設定し、この条件で平板を
他方へ送りながら第１板厚部の板厚に圧延する第３圧延
工程と、 得られたブランク材をプレス機で所定の形状に成形する
成形工程と、からなる車体パネルの成形方法。1. A method for forming a vehicle body panel in which three types of flat plates having different thicknesses are formed by a rolling device and formed into a predetermined shape by a press machine, wherein the first flat portion is formed while feeding the flat plate to one side. And a second rolling step of rolling the second thick part to a thickness intermediate between the thickness of the first thick part and the thickness of the third thick part; and A second rolling step of rolling to a thickness of the two thick portions, and a rolling roll interval at a boundary between the first thick portion and the second thick portion is set for the thickness of the first thick portion. A third rolling step of rolling the flat sheet to the thickness of the first thick section while feeding the flat sheet to the other, and a forming step of forming the obtained blank into a predetermined shape by a press machine. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001133583A JP4668454B2 (en) | 2001-04-27 | 2001-04-27 | Forming method for body panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001133583A JP4668454B2 (en) | 2001-04-27 | 2001-04-27 | Forming method for body panel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2002326589A true JP2002326589A (en) | 2002-11-12 |
| JP4668454B2 JP4668454B2 (en) | 2011-04-13 |
Family
ID=18981416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001133583A Expired - Fee Related JP4668454B2 (en) | 2001-04-27 | 2001-04-27 | Forming method for body panel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4668454B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010179368A (en) * | 2009-02-06 | 2010-08-19 | Benteler Automobiltechnik Gmbh | Method of manufacturing final product formed into predetermined outer peripheral shape from sheet metal |
| JP2010535636A (en) * | 2007-08-15 | 2010-11-25 | コラス・スタール・ベー・ブイ | Method for producing coated steel strips for producing tailored blanks suitable for thermomechanical forming, strips produced thereby and use of such coated strips |
| WO2013094204A1 (en) * | 2011-12-21 | 2013-06-27 | Ｊｆｅスチール株式会社 | Band-shaped metal sheet |
| KR101443022B1 (en) * | 2012-12-04 | 2014-09-22 | 현대하이스코 주식회사 | Rolling roll apparatus for varying variety thickness of metal material, rolling system and rolling method thereof |
| JP2016502601A (en) * | 2012-11-08 | 2016-01-28 | コンステリウム フランス | Method for manufacturing variable thickness structural elements for aircraft manufacturing |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101500385B1 (en) | 2013-12-31 | 2015-03-09 | 현대자동차 주식회사 | Handling apparatus for moving part |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58209404A (en) * | 1982-05-31 | 1983-12-06 | Mitsubishi Steel Mfg Co Ltd | Taper rolling device |
| JPS603904A (en) * | 1983-06-20 | 1985-01-10 | Nippon Steel Corp | Shape steel sheet having thick part at both ends and manufacture thereof |
| JPS6061106A (en) * | 1983-09-16 | 1985-04-08 | Kawasaki Steel Corp | Rolling method of steel sheet with different thickness |
| JPS61103603A (en) * | 1984-10-24 | 1986-05-22 | Kawasaki Steel Corp | Manufacture of thick steel plate having plural step differences in thickness |
| JPS6254505A (en) * | 1985-08-31 | 1987-03-10 | Nippon Steel Corp | Production of different thickness steel plate |
| JPS62110802A (en) * | 1985-11-11 | 1987-05-21 | Sumitomo Metal Ind Ltd | Production of differential thickness steel plate |
| JPH11104750A (en) * | 1997-09-30 | 1999-04-20 | Nissan Motor Co Ltd | Press forming method for abutt welding board |
-
2001
- 2001-04-27 JP JP2001133583A patent/JP4668454B2/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58209404A (en) * | 1982-05-31 | 1983-12-06 | Mitsubishi Steel Mfg Co Ltd | Taper rolling device |
| JPS603904A (en) * | 1983-06-20 | 1985-01-10 | Nippon Steel Corp | Shape steel sheet having thick part at both ends and manufacture thereof |
| JPS6061106A (en) * | 1983-09-16 | 1985-04-08 | Kawasaki Steel Corp | Rolling method of steel sheet with different thickness |
| JPS61103603A (en) * | 1984-10-24 | 1986-05-22 | Kawasaki Steel Corp | Manufacture of thick steel plate having plural step differences in thickness |
| JPS6254505A (en) * | 1985-08-31 | 1987-03-10 | Nippon Steel Corp | Production of different thickness steel plate |
| JPS62110802A (en) * | 1985-11-11 | 1987-05-21 | Sumitomo Metal Ind Ltd | Production of differential thickness steel plate |
| JPH11104750A (en) * | 1997-09-30 | 1999-04-20 | Nissan Motor Co Ltd | Press forming method for abutt welding board |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010535636A (en) * | 2007-08-15 | 2010-11-25 | コラス・スタール・ベー・ブイ | Method for producing coated steel strips for producing tailored blanks suitable for thermomechanical forming, strips produced thereby and use of such coated strips |
| JP2010179368A (en) * | 2009-02-06 | 2010-08-19 | Benteler Automobiltechnik Gmbh | Method of manufacturing final product formed into predetermined outer peripheral shape from sheet metal |
| WO2013094204A1 (en) * | 2011-12-21 | 2013-06-27 | Ｊｆｅスチール株式会社 | Band-shaped metal sheet |
| CN103998153A (en) * | 2011-12-21 | 2014-08-20 | 杰富意钢铁株式会社 | Band-shaped metal sheet |
| JPWO2013094204A1 (en) * | 2011-12-21 | 2015-04-27 | Ｊｆｅスチール株式会社 | Strip metal plate |
| CN103998153B (en) * | 2011-12-21 | 2016-01-20 | 杰富意钢铁株式会社 | Strip metal plate |
| US9616485B2 (en) | 2011-12-21 | 2017-04-11 | Jfe Steel Corporation | Metal strip |
| JP2016502601A (en) * | 2012-11-08 | 2016-01-28 | コンステリウム フランス | Method for manufacturing variable thickness structural elements for aircraft manufacturing |
| KR101443022B1 (en) * | 2012-12-04 | 2014-09-22 | 현대하이스코 주식회사 | Rolling roll apparatus for varying variety thickness of metal material, rolling system and rolling method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4668454B2 (en) | 2011-04-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101333268B1 (en) | Roll forming apparatus for long-rail frame | |
| JP3734315B2 (en) | Bending method and bending apparatus | |
| JP2002326589A (en) | Method of forming body panel | |
| US8535040B2 (en) | Plastic film stretching apparatus | |
| JP3811653B2 (en) | Pipe compound bending equipment | |
| JP2010069484A (en) | Method and device for roll-bending flat plate | |
| JPH0422581A (en) | System and device for manufacturing rib stock | |
| JP3578584B2 (en) | Method of manufacturing square steel pipe | |
| JP2000167621A (en) | Manufacture of square steel tube and device for forming square-shaped steel tube | |
| JP4429380B2 (en) | Plastic film stretching equipment | |
| JP4490563B2 (en) | Bending device and bending method | |
| JP4801277B2 (en) | Forming method for body panel | |
| JP4061091B2 (en) | Bending method and bending roll | |
| JP2002505198A (en) | Method and apparatus for transferring a hollow molded body blank | |
| JPH11169950A (en) | Manufacture of tapered plate | |
| JP4077804B2 (en) | Metal plate rolling method | |
| JP3332216B2 (en) | Pipe forming apparatus and forming method using bending roll | |
| JPH087942Y2 (en) | Cylindrical forming roll device | |
| JP2004195504A (en) | Apparatus and method for forming steel pipe and manufacturing equipment train | |
| JP3842986B2 (en) | Pipe cutting device and method | |
| JP2002066640A (en) | Bending roll | |
| JP2022149820A (en) | Manufacturing method of differential thickness metal plate and manufacturing device of differential thickness metal plate | |
| JPH09168824A (en) | Manufacture of metallic rolled pipe and device therefor | |
| JP2002001403A (en) | Punching apparatus for centering machine | |
| JP2005297059A (en) | Sheet feed controller fitted to roll for taper tube working |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20071128 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20100217 |
|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20100218 |
|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20100412 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20100824 |
|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20101020 |
|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20110111 |
|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20110113 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20140121 Year of fee payment: 3 |
|
| R150 | Certificate of patent or registration of utility model |
Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| LAPS | Cancellation because of no payment of annual fees |