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    • 10. 发明授权
    • Press brake punch holder
    • 压力制动打孔支架
    • US06450004B1
    • 2002-09-17
    • US09971658
    • 2001-10-09
    • Douglas E. EdmondsonCarl Stover
    • Douglas E. EdmondsonCarl Stover
    • B21D3704
    • B21D5/0236B21D5/0209
    • A press brake punch holder provides a single actuation assembly to apply symmetrically opposed, lateral forces to a series of otherwise independent punch clamps for securing a corresponding series of punches within the clamps. The clamps are each pivotally secured to the holder assembly by a series of generally centrally disposed bolts therethrough, with the clamps rotating through a limited arc on spherical bearings between the clamps and the holder body. The laterally acting actuator urges the upper ends of the clamps apart, thereby urging their opposite lower ends together to clamp the punches therebetween, or between each clamp and a central structure. Release of lateral pressure allows the punches to be removed as desired, with light spring pressure holding the punches in place when, lateral pressure is removed. Actuation may be provided by a laterally acting wedge assembly, or by laterally acting fluid pressure (hydraulics or pneumatics).
    • 压力制动冲头支架提供单个致动组件,以对称地相对的侧向力施加到一系列否则独立的冲压夹,用于将相应的一系列冲头固定在夹具内。 夹具通过一系列大致中心布置的螺栓枢转地固定到保持器组件,夹具通过夹具和保持器主体之间的球形轴承上的有限弧旋转。 侧向作用的致动器促使夹具的上端分开,从而将它们的相对的下端推动在一起,以将冲头夹在其间,或夹紧在每个夹具与中心结构之间。 横向压力的释放允许根据需要去除冲头,当侧压力被去除时,轻弹簧压力将冲头保持在适当位置。 致动可以由侧向作用的楔形组件或侧向作用的流体压力(液压或气动)提供。