The preselection machine of gaskets is used for selecting the adjusted gaskets in assembling the initiative taper gear axis of the automobiles driving axle.

主齿垫片预选机主要用于汽车驱动桥主动锥齿轮总成装配时选择调整垫片，调整垫片厚度对圆锥滚子轴承的轴向力分配有很大影响。

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In order to ensure requirement of taper and size in machining complex mold cavity, it must depend on precision and reliable programming method of WEDM machine.

为使复杂型腔能在加工中保证锥度及尺寸要求，必须以线切割机床的精度和可靠的编程方法为前提。

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Based on the "three-ball" measurement theory and the machine vision technology, a novel instrument for measuring taper thread is introduced. At the same time, image pre-process technology is analyzed.

前言： 基于螺纹测量“三针法”的原理，使用机器视觉的方式，研制开发了三维自动锥螺纹检测系统本体，对图像处理技术中的预处理部分做了简单探讨。

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