如图所示,这是一种检验盘类和短形轴套类零件的转台.其特点是:结构简单,制造方便,可在360°范围内旋转,以滚动摩擦代替了被测件与检验平板的滑动摩擦,故轻便省力,避免了被测零件基面的划伤拉毛.转台工作面的平面度和对底面的平行度误差≤0.004mm.测量精度可达0.01mm以下.与在检验平板上测量平行度相比较,检测效 As shown in the figure, this is a turntable for inspecting disc and short bushings, which has the following features: simple structure, easy manufacture, rotation within 360 °, rolling friction instead of the DUT and inspection Flat sliding friction, so light and labor-saving, to avoid scratching the base surface of the measured parts. Flatness of the turntable face and the parallelism of the bottom surface error ≤ 0.004mm. Measurement accuracy of up to 0.01mm below the test plate On the measurement of parallelism compared to detection efficiency