大师作文网Structure model of the drilling system
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Structure model of the drilling system
The structure of a micro-drilling machine can be simplified as shown in Fig.1.In Fig.1,spindle A is supported by two identical isotropic bearings in radial direction;spindle A and drill clamp C–D is connected by shaft B;micro-drill E–F is fixed in the clamp D.Drill part with the screw slots is taken as uniform shaft F by equivalent of the bending stiffness.Structure dimensions and parameters of the model are shown in Table 1.The drilling process is considered in three cases[4]for analyzing:(a)a drill does not contact the workpiece;(b) a drill just contacts the workpiece;(c)a drill tip penetrates the workpiece.
The structure of a micro-drilling machine can be simplified as shown in Fig.1.In Fig.1,spindle A is supported by two identical isotropic bearings in radial direction;spindle A and drill clamp C–D is connected by shaft B;micro-drill E–F is fixed in the clamp D.Drill part with the screw slots is taken as uniform shaft F by equivalent of the bending stiffness.Structure dimensions and parameters of the model are shown in Table 1.The drilling process is considered in three cases[4]for analyzing:(a)a drill does not contact the workpiece;(b) a drill just contacts the workpiece;(c)a drill tip penetrates the workpiece.
结构的微型钻床可以简化为图1所示Fig.1.In ,主轴A是支持的两个相同的各向同性轴承径向方向;主轴A和演习钳的C - D的连接轴B组;微型钻电子F是固定在钳4钻部分螺钉插槽是采取统一轴F相当弯曲stiffness.Structure尺寸和参数模型列于表1 ,钻井过程被认为是3例[ 4 ]分析如下：（ a ）演习不接触工件; （ b ）在演习刚刚接触工件; （ c ）一个钻尖穿透工件.
Structure model of the drilling system
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