如图所示为一种夹紧内孔车削轴套或类似工件外圆的简易快速方法。可保证工件的同心度。具体做法如下:将一根长度较镇的圆钢夹持在车床卡盘里,车削其外径,使与待加工衬套的内径配合。在车削好的心轴上锉一个平面,锉去的深度应比销子的直径深2~3微米。销子通常可采用金属销钉、焊条或者小型定位销。当加工小型工件时,甚至可采用回形针铁丝。然后把销子放置在心 Shown is a quick and easy way to clamp the outside of a turning bore sleeve or similar workpiece. Concentricity of the workpiece can be guaranteed. Specific practices are as follows: Will be a length of the town of round steel clamped in the lathe chuck, turning the outer diameter, with the inner diameter of the bush to be matched. A good flat surface in the turning of the mandrel, the depth of the file should be deeper than the pin 2 to 3 microns in diameter. The pins can usually be metal pins, welding rods or small dowel pins. Paperclips can even be used when machining small workpieces. Then place the pin in the heart