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众所周知,为便于安装剖分式滑动轴承,在机体的轴承孔上必须设有定位槽。定位槽尺寸要与薄壁轴瓦的定位唇相配台,以便在螺栓紧固轴承后使轴瓦内孔位于正确的位置,如图1所示。过去采用试切法加工这种定位槽,按工件上的划线加工。这种方法,难于调整铣刀巾心,而且费工费时。其主要原因是定位槽位置一般在轴瓦宽度的1/3～1/4处,所以铣削时看不见轴承座孔内的加工形状与划线是否一致,轴承座端面划线实际上无用,容易
As we all know, in order to facilitate the installation of split-type plain bearings, bearing holes in the body must have a positioning groove. The size of the positioning groove should be matched with the positioning lip of the thin-walled bush, so that the inner hole of the bush is in the correct position after the bolt is tightened, as shown in FIG. 1. In the past using trial cutting method of processing this positioning groove, according to the workpiece scribing processing. This method is difficult to adjust the milling cutter heart, but also time-consuming work. The main reason is that the location of the positioning groove is generally 1/3 ~ 1/4 of the width of the bearing bush, so the machining shape in the bearing seat hole can not be seen when milling is consistent with the scribing line, and the bearing scribing is practically useless and easy