近年来不少单位反映,数控线切割机床采用快速走丝后,滚丝筒轴经常出现断裂现象,以至影响生产。我厂前一阶段也多次出现过这种状况。我们认为产生滚丝筒轴断裂的主要原因是:电机经弹性联轴节带动滚丝筒高速转动(1440转/分),一般在1～2分钟的时间内,就要在高转速下正反转一次。因为滚丝筒的正反转是由电机控制的,电机正反转启动电流很大,所以滚丝筒轴不断承受从正反两个方 In recent years, many units reflect the CNC wire-cutting machine with a quick wire, the roller shaft often appear broken, and even affect the production. I have seen this situation many times before the first phase of our factory. In our opinion, the main reason for the breakage of the bobbin shaft is that the motor rotates at a high speed (1440 rpm) via the elastic coupling, generally within 1 to 2 minutes, Turn again. Because the rolling tube is controlled by the motor forward and reverse, the positive and negative motor starting current is large, so the roller shaft continued to withstand the pros and cons from both sides