论文部分内容阅读
我厂在制造专用机床时,遇到该机床主轴孔径φ75,长1.280mm,按通常方法,用悬臂式刀杆车削内孔,吃刀稍大些,刀杆就振动,影响表面光洁度。为此,经反复研究,设计了一种特殊的刀杆,大大提高了工效,光洁度也好,现介绍如下: 刀杆的结构见附图,前部是铸铁车削的圆柱导向块1、中间装有两端有硬质合金刀片的车刀3,后面是一个铸铁套圈6。加工时,刀杆装在车床尾架锥孔内,工件装在三爪卡盘上,中间用中心架支撑好。先钻孔,钻头不够
I plant in the manufacture of special machine tools, the machine encountered spindle diameter φ75, length 1.280mm, according to the usual method, with a cantilever arbor turning bore, eat a little larger, arbor on the vibration, affecting the surface finish. To this end, after repeated study, designed a special arbor, greatly improving the work efficiency, finish is also good, are introduced as follows: Arbor structure shown in the drawings, the front is a cast iron turning cylindrical guide block 1, There are turning tools 3 with carbide inserts on both ends and a cast iron ferrule 6 on the back. Processing, the arbor is installed in the taper hole lathe tailstock, the workpiece mounted on the three jaw chuck, the middle frame with a good support. First drilling, drill enough