给出螺旋面钻尖刃磨机床的基本结构及其工作原理。
Basic structure and operation principle of the parallel grinder for helical drill point grinding is presented.
麻花钻也许可以被划分成三个主要的部分：钻柄、钻体和钻尖。
The twist drill may be divided into three principal parts:shank, body and point.
分析了平面钻尖的刃磨方法，并对其几何特性进行了分析和求解。
The grinding methods of planar drill point are discussed. Geometric characteristic of planar drill point is analyzed and solved.
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