线切割机床在使用一个时期以后,除了导轮磨损能造成钼丝的抖动而影响加工精度,还有一个问题可能不被人们所重视或发现,就是贮丝筒的径向跳动问题。贮丝筒按机床的精度要求,应当是在贮丝筒的两端和中间分别用千分表检测,以直径≤φ120毫米为例,其径向跳动不得大于0.012毫米。由于贮丝筒的长期高速正反运转,在 After a period of using the wire-cutting machine tool, in addition to the guide wheel wear can cause the molybdenum wire jitter and affect the processing accuracy, there is a problem may not be valued or discovered, that is, the drum radial runout problem. According to the precision requirements of the machine, the two ends of the storage cylinder and the middle should be respectively detected by a dial gauge. When the diameter is less than or equal to φ120 mm, the radial runout shall not be greater than 0.012 mm. Due to the long-term high-speed silo positive and negative operation, at