Apparatus for shaping a lug on a stamped workpiece
    3.
    发明授权
    Apparatus for shaping a lug on a stamped workpiece 失效
    用于在冲压工件上成形凸耳的装置

    公开(公告)号:US4151783A

    公开(公告)日:1979-05-01

    申请号:US824334

    申请日:1977-08-12

    申请人: Willy Zimmermann

    发明人: Willy Zimmermann

    摘要: A flat, elongate workpiece such as a knitting-machine needle, stamped from sheet metal with a transverse lug whose narrow faces require precise machining, is clamped in a workpiece holder with its lug centered on an axis about which the workpiece holder and an associated tool mounting are relatively rotatable. The tool mounting includes two symmetrically positioned supports, carrying respective power-driven shaping tools such as grinding wheels or millers, which are limitedly movable in a plane including the axis and are interconnected by a tension spring drawing them toward each other. An interposed cam disk, engaged by rollers mounted on these supports, determines the extent to which the two shaping tools can approach the axis in machining respective lug faces during a relative rotation of up to 180.degree..

    摘要翻译: 一个扁平细长的工件,例如针织机针,冲压有金属板,带有横向凸耳,其窄面需要精密机加工,该工件夹紧在工件保持器中,其凸耳的中心位于工件夹持器和相关工具 安装是相对可旋转的。 工具安装包括两个对称定位的支撑件,其承载相应的动力成型工具,例如砂轮或铣刀,它们在包括轴线的平面中是有限的可移动的,并且通过拉伸弹簧将它们彼此拉直而相互连接。 通过安装在这些支撑件上的滚轮啮合的插入的凸轮盘确定了在相对旋转高达180度时两个成形工具可以在加工相应凸耳面时接近轴的程度。