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    • 2. 发明授权
    • Clamping apparatus for machine tools
    • 机床夹紧装置
    • US4396185A
    • 1983-08-02
    • US217048
    • 1980-12-16
    • Shigeo KasaiTsuneo AizawaKiju Kawada
    • Shigeo KasaiTsuneo AizawaKiju Kawada
    • B26F1/00B21D28/04B21D28/36B21D43/00B21D43/10B25B1/00
    • B21D28/04B21D43/10Y10T83/7527Y10T83/7533
    • A clamping apparatus (3) for holding a workpiece (W) between an upper punching tool (19) and a lower punching tool (21) in a machine (1). A frame (33) attaches the clamping apparatus (3) to the machine (1). The clamping apparatus (3) comprises an upper clamp (61) and a lower clamp (57), the latter pivotably cooperating with the upper clamp (61) in order to secure the workpiece (W). The clamping apparatus (3) also comprises a plate member (51) and rods (49) and (75). These rods (49) and (75) are mounted in the frame (33) in a direction perpendicular to the workpiece (W). The lower end of the rods (49) and (75) are attached to the lower clamp (57) and the upper end of the rods (49) and (75) are attached to the plate member (51). A spring (83) is arranged between the lower clamp (57) and the plate member (51) for the purpose of maintaining the lower clamp (57) and the plate member (51) in horizontal orientation whenever the lower clamp (57) collides with the lower punching tool (21).
    • 一种用于在机器(1)中的上冲压工具(19)和下冲压工具(21)之间保持工件(W)的夹紧装置(3)。 框架(33)将夹紧装置(3)附接到机器(1)。 夹紧装置(3)包括上夹具(61)和下夹具(57),后夹具(57)与上夹具(61)可枢转地配合,以固定工件(W)。 夹紧装置(3)还包括板构件(51)和杆(49)和(75)。 这些杆(49)和(75)在与工件(W)垂直的方向上安装在框架(33)中。 杆(49)和(75)的下端附接到下夹具(57),杆(49)和(75)的上端附接到板构件(51)。 为了将下夹具(57)和板构件(51)保持在水平方向,每当下夹具(57)碰撞时,下夹具(57)和板构件(51)之间布置有弹簧(83) 与下冲压工具(21)。