基于间隙控制技术的数控电解加工机床能耗研究

以电解加工平面为例，通过理论和试验研究得到电解加工中加工间隙与加工电流的关系式，提出一种基于电流信号的间隙控制系统，实时获取加工过程中的运动状态。系统采集加工过程中采样电阻的电信号并输出给控制模块；将该信号与单片机程序中的设定值作比较以做出适当的处理并结合继电器发送信号给数控系统，实现对加工间隙的控制。进行2种间隙控制状态下数控电解加工平面的试验研究，结果表明：间隙控制状态下，机床能耗低、加工过程稳定可靠、表面质量好。

Research on Energy Consumption of NC ECM Machine Tool Based on Gap Control Technology

Taking electrochemical machining plane as an example, the relationship between machining gap and machining current in electrochemical machining was obtained through theoretical and experimental research, and a gap control system based on current signal was proposed to obtain the motion state in the process of machining in real time. The system collected the electrical signal of the sampling resistance in the process of processing and outputted it to the control module; the signal was compared with the set value in the single chip microcomputer program to make appropriate processing, and combined with the relay, the signal was sent to the NC system to realize the control of machining gap. The experimental researches on NC electrochemical machining plane under two kinds of gap control states were carried out. The results show that under the gap control state, the machine tool energy consumption is low, the machining process is stable and reliable, and the surface quality is good.