Wire-cut electric discharge machine having water level abnormality detection function and water level abnormality alarm generation cause specifying method

A wire-cut electric discharge machine having water supplying unit for supplying a machining liquid to a machining tank, draining unit for draining the machining liquid from the machining tank, detecting unit for detecting a water level of the machining liquid stored in the machining tank and a water level adjusting mechanism for supplying or draining the machining liquid based on a detection value detected by the water level detecting unit so as to adjust the water level of the machining tank, and having a water level abnormality detection function for generating a water level abnormality alarm when a difference between the water level detected by the water level detecting unit and a target water level exceeds a predetermined range, the wire-cut electric discharge machine comprising:

• outputting unit for stopping the supply of the machining liquid to the machining tank so as to output a drain instruction when the alarm is generated;
• measuring unit for measuring an amount of change in the water level per unit time that is detected by the water level detecting unit;
• displaying unit for displaying, according to the amount of change measured by the measuring unit, a question to an operator about a state of the water level adjusting mechanism;
• inputting unit for inputting an answer to the question displayed on the displaying unit;
• and
• cause specifying unit for specifying, from the answer input by means of the inputting unit, a part which causes the generation of the alarm.

A water level abnormality alarm generation cause specifying method in a wire-cut electric discharge machine having water supplying unit for supplying a machining liquid to a machining tank, draining unit for draining the machining liquid from the machining tank, detecting unit for detecting a water level of the machining liquid stored in the machining tank and a water level adjusting mechanism for supplying or draining the machining liquid based on a detection value detected by the water level detecting unit so as to adjust the water level of the machining tank, and having a water level abnormality detection function for generating a water level abnormality alarm when a difference between the water level detected by the water level detecting unit and a target water level exceeds a predetermined range, the method comprising the steps of:

• stopping the supply of the machining liquid to the machining tank so as to drain the machining liquid when the alarm is generated;
• displaying a question to an operator about a change in water level and a state of the water level adjusting mechanism;
• inputting an answer to the displayed question;
• and
• specifying, from the answer input by means of the inputting unit, a part which causes the generation of the alarm.

A water level abnormality alarm generation cause specifying method in a wire-cut electric discharge machine having water supplying unit for supplying a machining liquid to a machining tank, draining unit for draining the machining liquid from the machining tank, detecting unit for detecting a water level of the machining liquid stored in the machining tank and a water level adjusting mechanism for supplying or draining the machining liquid based on a detection value detected by the water level detecting unit so as to adjust the water level of the machining tank, and having a water level abnormality detection function for generating a water level abnormality alarm when a difference between the water level detected by the water level detecting unit and a target water level exceeds a predetermined range, the method comprising the steps of:

• stopping the supply of the machining liquid to the machining tank so as to drain the machining liquid when the alarm is generated;
• measuring an amount of change in the water level per unit time that is detected by the water level detecting unit;
• displaying a question to an operator about the measured amount of change in the water level and a state of the water level adjusting mechanism;
• inputting an answer to the displayed question;
• and specifying, from the answer input by means of the inputting unit, a part which causes the generation of the alarm.