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在精车圆柱孔时,如果孔的精度要求较高,可采取转动小拖板角度,利用小拖板进给的方法对吃刀深度进行微量调节。采取这种方法,能有效地控制加工精度。小拖板进给距离的计算公式如下:S=α/(sinα)(毫米)式中:S——小拖板进给距离(毫米);α———吃刀深度微调节量(毫米)α——小拖板转动角度(度)为了计算方便,现将小拖板移动0.05毫米(即小拖板刻度盘转过一小格)时的吃刀深度微调节量列于下表。
In the fine car cylindrical hole, if the accuracy of the hole is higher, you can take a small turning angle of the carriage, the use of small pallet feed method to trace the depth of micro-adjustment. Take this method, can effectively control the machining accuracy. S = α / (sinα) (mm) Where: S-- small carriage feed distance (mm); α --- eat knife depth fine adjustment (mm) α - small pallet rotation angle (degrees) For the sake of calculation, the depth adjustment of the depth of cut when moving the small pallet by 0.05 mm (ie, the small pallet dial rotates a small square) is shown in the following table.