快速进退刀是我厂职工在党的正确领导下,大闹技术革新、技术革命,通过“领导、工人、技术人员”三结合,经过多次试验成功的。这次在西南地区观摩推广过程中,受到广大工人的好评,现将此装置介绍出来供同志们参考。快速进退刀装置是精密加工螺纹的装置,它的结构如附图所示。它适合于所有螺絲车床。使用时将中拖板的絲杆、固定刻度盘及4个螺钉卸下来,再把这个装置放在此位置上,然后用4个螺钉(原来卸下4个螺钉)固定起来便可使用。它的运动原理是:依靠销轴18在长套4中沿螺旋槽滑动,产生前后运动的。使用时首先将手把放到加工的位置,然后合上闸瓦开始加工。当加工到退刀位置时,就将手把7顺 Rapid advance and retreat knife workers in our factory under the correct leadership of the party, downtown technology innovation, technological revolution, through the “leadership, workers, technicians ” three combinations, after many successful trials. This time in the southwestern region to observe the promotion process, praised by the majority of workers, this device is now introduced for comrades reference. Rapid advance and retreat knife device is a precision machining thread device, its structure as shown in the figure. It is suitable for all screw lathe. When using, remove the screw, fixing dial and 4 screws of the carriage, put this device in this position, and then use 4 screws (the original 4 screws) to fix it. Its movement principle is: relying on the pin 18 in the sleeve 4 along the spiral groove sliding, resulting in back and forth movement. First use the handle to the processing position, and then close the brake shoe began processing. When processing to retract position, it will handle 7 along