Research Of Control Technology For Gap State Of The EDM In Gas

As the widespread use of all kinds of new materials and complex crafts, electric discharging machining technique develops quickly, but its energy utilization ratio is low, what is worse, it will produce deleterious gas while processing. Owing to the enhancement of people's environmental awareness, electric gas discharging machining technique will become an important branch of the electric discharging machining technique.During the process of the electric gas discharging machining, Control clearance state is significant to machining stability and machining precision. In this paper, on the basis of analysis the traditional electric discharging machining clearance state control system, developed an electric gas discharging machining clearance state control system which have the function to read electric voltage optimization and automatic control. The research mainly on the following several aspects:Analyse the processing mechanism of EDM gas discharge machining, on the base of the study of the existing detectoin techniques of traditional EDM gap state detection technology is proposed on the basis of edm gas discharge machining gap state test methods.Gas discharge machining gap of electric control system, analyzes the function requirement reference voltage optimization design can be automatic adjustment function clearance control system, to spark discharge machining precision tooling to designated, with the highest machining efficiency for machining.Developed clearance control system with the numerical control system software and hardware interface. Because of edm electromagnetic interference is strong, clearance control is to require fast response. ISA bus has strong anti-jamming capability, transmission speed, the development of low cost advantage, using the ISA bus as PC and machine interface buses.