往复走丝电火花线切割机床智能自适应采样控制系统和纳秒级高频电源的研发及应用

Development and Application of Intelligent Control System Owned Self-adaption Sampling Function and High Frequency Power Supply of Nanosecond Pulsed Electro-discharging for Reciprocating WEDM

预设工件厚度的往复走丝电火花线切割机床的控制系统有其先天缺陷,会影响加工件精度和切割面粗糙度,这是因为大部分加工件的材质、形状和厚度不同,其加工过程中会因阶梯突变、缓慢渐变等工况使切割厚度发生变化。研究显示,以Wire-CAXA控制系统模拟人类大脑,自动识别加工件的切割厚度和材质难度,实时动态调整加工状态,科学控制最佳放电频率、最优匹配工作台电机进给速度,是实现高精度加工的最佳解决方案。

The traditional control system of the reciprocating WEDM with preset workpiece thickness has its inherent defects,which will affect the accuracy of the workpiece and the smoothness of the cutting surface.It is because that the material,shape and thickness of most workpieces are different,and abrupt changes,slow gradual changes and other working conditions will change the cutting thickness during the machining.Research shows that using the Wire-CAXA control system to simulate the human brain,automatically recognizing the cutting thickness and material difficulty of the processed parts,dynamically adjusting the processing status,scientifically controlling the optimal discharge frequency and optimally matching the feed speed of the table motor is the best solution for precision machining.