CAD/CAM UNIT FOR ELECTRIC DISCHARGE MACHINE

摘要

A CAD/CAM unit for electric discharge machine, comprising a check means (32) for determining a height (safety height HLs of machining fluid level) obtained by adding a specified safety distance to the height of the upper surface of a work (W) based on the drawing data (19) of the work prior to actual machining, determining a height (clamp height Hc) obtained by adding the height of an electrode (E) to the height of the work at the ending position of machining for a specified reference position based on the drawing data (18) of electrode, comparing the HLs and Hc and making a decision that an abnormality exist if the Hc is not higher than the HLs. A machining tank (7) can be driven automatically to set the height HL of machining fluid at the safety height HLs by recognizing a required safety height HLs at the time of actual machining and immersion of a clamp unit (5) into machining fluid (8) during actual machining can be checked before actual machining.