公开(公告)号：US4900889A

公开(公告)日：1990-02-13

申请号：US311170

申请日：1989-02-15

申请人： Ernst Buhler ,  Peter Wehrli ,  Massimo Martignoni ,  Mauro Erba

发明人： Ernst Buhler ,  Peter Wehrli ,  Massimo Martignoni ,  Mauro Erba

IPC分类号： B23H7/10

CPC分类号： B23H7/10

摘要： A current supply device for movable electrodes of spark erosion machines comprises a plurality of individual contacts and includes in leads connecting the contacts with a current generator, electrical components in the form of pulse transformers for a pairwise negative feedback of partial currents or additional impedances stepped according to a mathematical series for uniform current distribution over the individual contacts. The current supply device is particularly suitable for the current transmission of high energy short pulses, such as are used for an erosive wire cutting. The current supply device operates in an almost wear-free manner and can also fulfill the function of guide for the electrode.

摘要翻译： 用于火花腐蚀机的可移动电极的电流供应装置包括多个单独的触点，并且包括在将触点与电流发生器连接的引线中，电脉冲变压器形式的电气部件用于部分电流的成对负反馈或根据 一个数学系列，用于各个接触点上的均匀电流分布。 电流供应装置特别适合用于高能量短脉冲的电流传输，例如用于腐蚀性线切割。 电流供应装置以几乎无磨损的方式工作，并且还可以实现电极引导的功能。