Along with the numerical control line cutting engine bed application unceasing expansion, engine bed itself also arrived the unceasing development. More than ten years ago, “the negative day” the numerical control line cutting engine bed first applies and the actual production, starts the control bench is uses the transistor separative element assembly to become, after but uses the integrated circuit, now to is using the direction which the microcomputer controls to develop, Therefore this definition design “the electrical fire colored thread cutter automatic control” is by 8031 shrapnel machine took the control core, step-by-steps the electrical machinery achievement to actuate the electrical machinery, the diffraction grating a closed-loop control system which constitutes as the position examination part.
WEDM the core technology is to control the accuracy of displacement. In this paper, the QH-200-foot grating sensors to detect displacement through ATMEL's 89C55 as a control device, the output of two-way square, into the microcontroller, through CH250 to drive motor, control motor movement, would like to complete To the workpiece graphics. In this paper, the design of the EDM electrical system, control accuracy and precision of detection to achieve ± 0.01MM. State system has automatically display processing functions from the keyboard control system Kai, stopped and the displacement of a set.
KeyWord：electrical sparkle linear cutting microcomputer
Stepper motor
