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    • 5. 发明公开
    • Forming tools
    • 形成工具
    • EP0972584A2
    • 2000-01-19
    • EP99401790.3
    • 1999-07-16
    • AMADA METRECS COMPANY, LIMITED
    • Ohtsuka, Yasuyuki
    • B21D28/14
    • B21D45/003B21D28/14Y10T83/8759Y10T83/9476
    • Forming tools includes an upper holder (3); a lower holder (7); a punch (11) having a punch body (41) which can be attached to/detached from the upper holder and the lower holder; an ejector (43) being disposed movably in a vertical direction around a convex portion provided on a face of the punch body; a resilient unit (29) for urging the ejector, the resilient unit being provided on a back face of the punch body; a die (9) having a die body (25) which can be attached to/detached from the upper holder and the lower holder, the die body being provided with a concave portion for performing forming work on a workpiece (W) in cooperation with the convex portion; another ejector (27) for pushing out a forming-worked portion of the workpiece from the concave portion, the another ejector being provided movably in a vertical direction within the die body; and another resilient unit (29) for urging the another ejector, the another resilient unit being provided on the die body. Especially, the resilient unit in the punch and the resilient unit in the die has the same structure.
    • 成形工具包括一个上支架(3); 一个下支架(7); 一个冲头(11),该冲头具有一个冲头本体(41),该冲头本体(41)可以连接到上夹具和下夹具上/ 一个喷射器(43),该喷射器(43)围绕设置在所述冲头主体的一个面上的凸出部分沿垂直方向可移动地设置; 用于推动所述弹射器的弹性单元(29),所述弹性单元设置在所述冲头主体的背面上; 具有能够装卸于上部保持器和下部保持器的模具主体(25)的模具(9),该模具主体具有用于与工件(W)协同地进行成形加工的凹部 凸部; 另一个喷射器(27),用于将工件的成形加工部分从凹入部分推出,另一个喷射器设置成在模体内沿垂直方向可移动; 和用于推动另一弹射器的另一弹性单元(29),另一弹性单元设置在模体上。 特别地,冲头中的弹性单元和模具中的弹性单元具有相同的结构。