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夹具的设计精度和制造精度决定了机械加工的质量和效率。现介绍两种实用的机床夹具的设计与结构。一、轴类零件加工夹具轴类零件的机械加工,多以两端顶尖孔定心、端面定位,离心夹盘或夹箍夹紧进行加工,但是某些零件,如精车光轴,滚铣通轴花键等用这种方法装夹,加工起来就不很方便,无法一刀切出,调头车会出现接刀刀痕,再则轴类零件使用夹箍拨盘装夹时,夹箍的安装误差,容易造成工件的弯曲变形,加工时明显感到施于夹箍上螺钉的力量大小不同,齿形齿向误差
Fixture design accuracy and manufacturing precision determines the quality and efficiency of machining. Now introduce two kinds of practical machine tool fixture design and structure. First, the processing of shaft parts Shaft parts machining, and more at both ends of the top hole centering, end positioning, centrifugal chuck or clamp clamping for processing, but some parts, such as fine car optical axis, Spline, etc. This method of clamping, processing is not very convenient, can not be cut across the knife, turning the car will appear knife knife marks, and then the shaft parts using the clamp ring clamp, the installation of the clip error, Easily lead to bending deformation of the workpiece, processing significantly felt the force applied to the clamp on the size of the screw, the tooth profile error