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我厂工农—12型手扶拖拉机四种拔叉轴圆弧槽的加工,过去用两台C616车床分粗精车两道工序进行,费时费力,不易保证质量。一九七八年把一台C616车床改装成气动控制全自动车床,装卸料、工件夹紧、刀具的运动均按照固定程序进行,代替了操作者单调、繁重的操作。由于采用气液缸传动进给,使进刀速度均匀,提高了刀具寿命,质量稳定,其循环周期为25～30秒钟,一次车削就能达到零件规定尺寸,取得了显著的经济效果。实践证明:该机改装以后结构紧凑可靠,投产四年多来,机床一直正常运转,气动控制回路没有发生
I plant workers and peasants -12-type tractor four fork axis arc slot machining, the past two C616 lathe points fine car two procedures, time-consuming and laborious, not easy to ensure quality. In 1978, a C616 lathe was converted into an air operated fully automatic lathe. Loading and unloading, workpiece clamping and tool movement were carried out according to a fixed procedure, replacing the monotonous and heavy operation of the operator. As the use of gas cylinder drive feed, the feed rate uniform, improve the tool life, quality and stability, the cycle of 25 to 30 seconds, a turning can achieve the required size of the parts, and achieved significant economic results. Practice has proved that: After the modification of the aircraft compact and reliable, put into operation more than four years, the machine has been operating normally, pneumatic control loop did not happen