CNC System Design of EDM Small Hole Machine Based on ARM + FPGA
Aiming at the shortcomings of poor compatibility,low real-time performance and module redundancy of EDM small hole machining CNC system at present,a EDM small hole machining CNC system based on embedded ARM+FPGA architecture is designed and developed.The functions of the host computer are reasonably divided into multiple functional modules,designed into different software processes,and CPU resources are reasonably allocated to improve system reliability and real-time performance.The upper computer uses RS485 bus to directly communicate with the servo driver,and directly calculates the motor control instruction,which is transmitted to the FPGA output pulse signal through the industrial Ethernet to control the motor and hardware equipment,forming a soft CNC system.The experiments of EDM small hole machining and EDM milling show that the designed soft CNC system is stable and reliable,and the processing effect is fine.
NETL
NSTL
万方数据
