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    • 2. 发明授权
    • Pusher apparatus for multi-axis tube bender
    • 多轴弯管机推进装置
    • US5195343A
    • 1993-03-23
    • US888088
    • 1992-05-26
    • Antoni J. Malarz
    • Antoni J. Malarz
    • B21D9/03B21D9/12
    • B21D9/03B21D9/125
    • A pusher bar assembly for a multi-axis tube bender acts to insert and withdraw the bending support mandrel, as well as to push the tube through the bender. A hollow sleeve with a diameter equal to the tube has sufficient length to contain both the mandrel and a piloting plug, which can be inserted between the free ends of both the tube and sleeve. A mandrel bar is slidably received through the sleeve, and so can extend the mandrel out of a stored position of the sleeve into the tube and back. A stop means stops the mandrel bar to locate the mandrel at the proper place in the tube. A push pull means on the mandrel bar also pushes the plug to a point where it bridges the free ends of the tube and sleeve with the mandrel stops. Therefore, a high pushing force can be directed from the sleeve to the tube without the free ends collapsing inside one another.
    • 用于多轴管弯曲机的推杆组件用于插入和拉出弯曲支撑心轴,以及将管推过弯曲机。 直径等于管的中空套管具有足够的长度以容纳心轴和引导塞,引导塞可插入管和套管的自由端之间。 芯棒可滑动地容纳穿过套筒,并且因此可将心轴从套筒的储存位置延伸到管中并返回。 止动装置停止芯棒将心轴定位在管中适当的位置。 芯棒上的推拉装置也将插头推到一个点,在该点上,它与心轴止动件桥接着管和套筒的自由端。 因此,可以将高推力从套筒引导到管而不会使自由端彼此折叠。