我车间利用图示工具,加工经精镗后的缸体,可使光洁度达到△9。工具很简单,只要在镗杆4上固定一个套1,套上每隔90°开一个20×20毫米~2的方孔,把中硬的弹簧3和20×20×150毫米~3的GB150Z R_1油石2装入各方孔内即可。加工时,将该工具随镗杆一起伸入工件孔内,以40转/分的转速旋转。工作台以1.03毫米/转的速度往返走刀(最后一次走刀是可适当减小),并加注90％的40号机油 I use the pictorial tool shop, after finishing the fine boring cylinder, can finish up to △ 9. The tool is very simple, as long as a sleeve 1 is fixed on the boring bar 4, the sleeve is opened every 90 ° to open a 20 × 20 mm ~ 2 square hole, the hard spring 3 and 20 × 20 × 150 mm ~ 3 GB150Z R_1 Whetstone 2 into each hole can be. During machining, the tool is inserted into the workpiece hole along with the boring bar to rotate at a speed of 40 rpm. Workbench to 1.03 mm / rev speed back and forth (the last pass can be appropriately reduced), and add 90% of the 40 # oil