CNC MILLING MACHINE SYSTEM INTERFACE BOARD EXTERNAL CONTROL BOARD

摘要

The present invention relates to an interface board and an external I / O control board of a PC-based CNC system, comprising: a bus interface circuit unit 10 capable of simultaneously controlling six axes of a PC control program signal through a printer port of a PC; A line driver signal and a TTL signal output circuit unit 20 capable of controlling various drivers; a monitoring circuit unit 30 for checking a pc status and informing a system status; A circuit unit 40 for converting a PWM signal output for an external voltage input control board into an analog voltage signal; An output unit 50 for controlling an external device; An active high switch input unit 60 receiving a signal input from a limit switch, a home switch, an emergency stop button switch, and the like; An index pulse circuit unit 70 for inputting and displaying an external encoder pulse signal; A circuit unit 80 which controls an external device manually or automatically and selects and controls a specific device; A power supply control circuit unit 90 for protecting an internal circuit when noise is input from the outside or a large voltage is input; Characterized in that it comprises a power signal separation circuit unit 100 for separating the signal and power, the present invention is the manufacturing cost of the CNC machine is down by the control program of the PC to control the CNC system through the printer port of the PC In this case, the economic efficiency is improved by using a very simple interface.; CNC Machine, Interface Board, CNC Machine Interface Board