我们厂从一九六九年开始试制和使用数控线切割机。现有的四台线切割机均是复旦型线路,其中一台是自制的。我们对于防止干扰和便利操作,进行了一番摸索,在机床上作了一些小的改进,收到了很好的效果,现介绍如下: 一、防止火花干扰在工作中,我们有二台机床,当运丝马达换向时,经常出现加工开关TKW关闭,J计数出错和部份清“0”或全机清“0”等现象,而当运丝马达停止运转时,运算却又很 Our factory from 1969 trial production and use of CNC wire cutting machine. The existing four-wire cutting machine are Fudan-type lines, one of which is made. We have done some groping for preventing interference and convenient operation, made some small improvements on the machine tool, and received good results. Now we introduce the following: I. Preventing spark disturbance At work, we have two machine tools, When the wire feeder motor commutation, often appear processing switch TKW off, J count error and part of the clear “0” or the whole machine “0” and so on, and when the wire feeder motor stops running, the operation is very