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在机械制造中,水平中分面被广泛地应用于许多机件上,如蒸汽轮机汽缸、轴承座、齿轮箱等等。当镗此类另件时,常常需要使镗床的转主轴中心与工件的中分面很精确地重合。但是直到现在,一般工厂尚在应用很原始的校正方法。最常用的方法是在镗床主轴端部的锥度孔中插入一顶尖,然后把主轴引到被加工另件的跟前,使顶尖的尖端与中分面线相重合,如[图一]。这方法有着下列两个缺点:1.因为这个方法是在镗床主轴的静止情况下进行的,这样一来,虽然装置误差就等于主在转时转中心的
In machine construction, horizontal facets are widely used on many parts such as steam turbine cylinders, housings, gearboxes, and the like. When boring such parts, it is often necessary to have the center of rotation of the boring machine exactly coincide with the median face of the workpiece. But up to now, the general factory is still using a very original correction method. The most common method is to insert a tip into the taper hole on the end of the spindle of the boring machine, and then lead the spindle to the workpiece to be machined so that the tip of the tip coincides with the middle face line. This method has the following two shortcomings: 1. Because this method is carried out at the spindle boring standstill, so that although the device error is equal to the main center of rotation