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公开(公告)号：EP2692457A1
公开(公告)日：2014-02-05
申请号：EP12764717.0
申请日：2012-03-06
发明人： SUGAI, Atsushi , MATSUNAGA, Yu , OGURA, Daisuke , MORIMOTO, Shoichi , ARIMA, Minoru , KANEDA, Yuichi , EGAMI, Akihiko
CPC分类号： B21D53/92 , B21D5/06 , B21D5/08 , B21D5/083 , B21D5/14 , B21D11/00 , B21D11/08 , B21D11/20 , B21D11/203 , B21D17/02 , B21D17/04 , B21D21/00 , B23P13/00 , B23P15/00 , B23P25/00 , B23P2700/01 , Y10T428/12389
摘要： A tip-bend forming method for machining pockets while a curved, plate-shaped workpiece is in a flattened state, without depending on novel machining equipment, wherein the curve radius of the plate-shaped workpiece after the pockets have been machined is prevented from becoming smaller than a completed curve radius due to spring-in. A plate-shaped workpiece (2) forming method for post-machining pockets (3) into the curved inner surface of the workpiece (2) while the plate-shaped workpiece (2), which has been curved by a curve-forming machine (10), is in a flattened state, the forming method having: a curve-forming step (A) for estimating in advance the amount that spring-in will cause the curve radius of the plate-shaped workpiece (2) to shrink after machining of the pockets (3) compared to before the machining thereof, setting a net curve radius (Ro) obtained by adding a curve-radius shrinkage amount (R 1 ) caused by spring-in to the completed curve radius (R) of the plate-shaped workpiece (2), and forming the curve in the plate-shaped workpiece (2) so as to achieve the net curve radius (R 0 ); and a pocket-machining step for flattening the curved, plate-shaped workpiece (2), and post-machining pockets (3) therein.
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2.发明授权
公开(公告)号：EP2692457B1
公开(公告)日：2015-11-25
申请号：EP12764717.0
申请日：2012-03-06
发明人： SUGAI, Atsushi , MATSUNAGA, Yu , OGURA, Daisuke , MORIMOTO, Shoichi , ARIMA, Minoru , KANEDA, Yuichi , EGAMI, Akihiko
CPC分类号： B21D53/92 , B21D5/06 , B21D5/08 , B21D5/083 , B21D5/14 , B21D11/00 , B21D11/08 , B21D11/20 , B21D11/203 , B21D17/02 , B21D17/04 , B21D21/00 , B23P13/00 , B23P15/00 , B23P25/00 , B23P2700/01 , Y10T428/12389
摘要： A tip-bend forming method for machining pockets while a curved, plate-shaped workpiece is in a flattened state, without depending on novel machining equipment, wherein the curve radius of the plate-shaped workpiece after the pockets have been machined is prevented from becoming smaller than a completed curve radius due to spring-in. A plate-shaped workpiece (2) forming method for post-machining pockets (3) into the curved inner surface of the workpiece (2) while the plate-shaped workpiece (2), which has been curved by a curve-forming machine (10), is in a flattened state, the forming method having: a curve-forming step (A) for estimating in advance the amount that spring-in will cause the curve radius of the plate-shaped workpiece (2) to shrink after machining of the pockets (3) compared to before the machining thereof, setting a net curve radius (Ro) obtained by adding a curve-radius shrinkage amount (R 1 ) caused by spring-in to the completed curve radius (R) of the plate-shaped workpiece (2), and forming the curve in the plate-shaped workpiece (2) so as to achieve the net curve radius (R 0 ); and a pocket-machining step for flattening the curved, plate-shaped workpiece (2), and post-machining pockets (3) therein.
摘要翻译： 一种用于在弯曲的板状工件处于平坦状态时加工凹坑的尖端弯曲成形方法，而不依赖于新的加工设备，其中防止了在加工凹坑之后的板状工件的弯曲半径变为 小于由于弹簧而完成的曲线半径。 一种用于将凹坑（3）后加工成工件（2）的弯曲内表面的板状工件（2），同时已经由弯曲成形机器弯曲的板状工件（2） 10）处于扁平状态，该成形方法具有：用于预先估计加工后板状工件（2）的弯曲半径收缩的量的弯曲量的步骤（A） （3）相比，设置通过将由弹簧引起的曲线半径收缩量（R 1）与板的完成曲线半径（R）相加而获得的净曲线半径（Ro） 形成工件（2），并在板状工件（2）中形成曲线，以达到净曲线半径（R 0）; 以及用于使弯曲的板状工件（2）平坦化并且在其中加工后凹部（3）的袋加工步骤。
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