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1. 发明授权

US5277435A Standard shank and method for directly locating rotating cutting tools in a machine tool work spindle 失效
标题翻译：用于在机床工作主轴中直接定位旋转刀具的标准柄和方法
公开(公告)号：US5277435A
公开(公告)日：1994-01-11
申请号：US933690
申请日：1992-08-24
申请人： Johann Kramer , Bruno Teusch , Rainer Renz , Dieter Jenuwein
发明人： Johann Kramer , Bruno Teusch , Rainer Renz , Dieter Jenuwein
IPC分类号： B23B31/10 , B23B31/02 , B23B31/20 , B23B31/117
CPC分类号： B23B31/201 , B23B2228/16 , Y10T279/10 , Y10T279/17 , Y10T279/17316 , Y10T279/3487 , Y10T279/35 , Y10T29/49865 , Y10T403/21 , Y10T403/48 , Y10T403/74 , Y10T408/95 , Y10T409/30952
摘要： A cylindrical standard shank is provided for rotating cutting tools for locating a standard shank in a cylindrical location opening, precisely produced with regard to shape and true-running accuracy, in the work spindles of so-called transfer lines or of, for example, steep-taper adaptors. The cutting tool is, in turn, fixed by a cylindrical press connection in the standard shank serving as an adaptor between the tool shank and standardized location opening. The standard shank has, at the front, a longitudinally slotted clamping sleeve accurately machined on the inside and outside. The clamping sleeve is clamped by an accurately machined shrink collar of shape-memory alloy which is approximately the same length and has at least the same wall thickness, is present in the austenitic structural state at room temperature and in the process is reduced in diameter on account of suitable pretreatment, and bears tightly against the periphery of the clamping sleeve. The shrink collar can be transformed into the martensitic structural state by undercooling and can thereby be widened in diameter, as a result of which the clamping sleeve is relieved and the cutting tool located in the standard shank can be exchanged.
摘要翻译：提供了一种圆柱形标准柄，用于旋转切削工具，用于将标准柄定位在圆柱形位置开口中，精确地根据形状和真实运行精度产生，在所谓的输送线的工作轴中，或者例如陡峭分配适配器另一方面，切割工具通过圆柱形的压力连接固定在标准柄中，用作工具柄和标准化位置开口之间的适配器。标准杆在前部具有在内部和外部精确加工的纵向开槽夹紧套筒。夹紧套筒由精密加工的形状记忆合金的收缩套管夹紧，大约相同的长度并且具有至少相同的壁厚，在室温下以奥氏体结构状态存在，并且在该过程中直径减小考虑到适当的预处理，并且紧紧地抵靠夹紧套筒的周边。收缩环可以通过过冷而转变为马氏体结构状态，从而可以扩大直径，由此可以减轻夹紧套筒，并且可以更换位于标准柄中的切割工具。

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