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图1所示是混凝土搅拌机的主要零件,我们采用如图2所示的拉削导向套来拉削它的锥孔键槽。导向套各部位作用简述如下。导向套上1∶10锥体部分与工件互配,互配后锥孔大端端面与导向套的M50×2端面距3～5mm。导向套φ60g7是与拉床法兰互配,另一端φ30g6是导向槽测量基准。螺母是起调节工件定位基面的作用及拉削完成后卸料用。因为锥孔直径位置允许有一定的变动量,所以不能用固定基面定位。工件与锥孔互配后,
Figure 1 shows the main components of concrete mixer, we use the broaching guide shown in Figure 2 to broach its taper keyway. The role of various parts of the guide sleeve is as follows. The guide sleeve is matched with the workpiece by the 1:10 cone part, and the M50 × 2 end face of the large end face of the tapered hole and the guide sleeve after the mating is 3 to 5 mm away from each other. Guide sleeve φ60g7 is matched with the broaching flange, the other end φ30g6 guide groove measurement standards. The nut is used to adjust the workpiece positioning base surface and the broaching after the completion of the discharge. Because the cone diameter position allows a certain amount of variation, it can not be fixed with the positioning of the base surface. After the workpiece and the tapered hole with each other,