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孔内环形槽的加工有多种不同的方法,我厂加工叉子耳孔的自动线切槽工位上采用的是偏心传动方法。产品尺寸如图1、刀具结构如图2。刀杆在主轴上的定位中心φd_2与刀杆自转中心一致,而与主轴回转中心的偏距为e。刀杆上的刀具定位中心φd_1在原始位置时与主轴回转中心重合,即与φd_2的偏距为e。因此,在动力头前进、切槽刀进入工件内孔时,刀杆位于原始位置,刀具外圆与工件内孔同心,随主轴以切削速度回转而不产生偏摆。当动力头
There are many different ways to process the annular groove in the hole. The automatic groove cutting station in our factory processing fork ear hole adopts the eccentric transmission method. Product size shown in Figure 1, the tool structure shown in Figure 2. The positioning center of the arbor on the main shaft φd_2 coincides with the rotation center of the arbor, and the offset from the rotation center of the main shaft is e. The tool positioning center φd_1 on the tool bar coincides with the rotation center of the spindle in the home position, that is, the offset from φd_2 is e. Therefore, when the power head moves forward, the grooving knife enters the inner hole of the workpiece, the cutter bar is in the original position, and the outer circumference of the tool is concentric with the inner hole of the workpiece, so as to rotate at the cutting speed with the spindle without yawing. When power head