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US 2006/0219668 A1Published application
Machining fluid level detection device for wire cut electrical discharge machines
AssigneeFanuc Corporation
InventorsAkiyoshi Kawahara, Tomoyuki Furuta
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Abstract
A table for placing a workpiece is grounded. An electrode for detecting machining fluid level is attached to an upper guide that guides the wire electrode, with the electrode insulated from the upper guide. A voltage is applied to the electrode, and the voltage between the electrode and the grounded table is detected and compared with a threshold value to determine whether the machining fluid level has reached a predetermined height.
Claims8
A machining fluid level detection device for a wire cut electrical discharge machine, comprising:
- a machining tank storing a machining fluid, with a table disposed therein for mounting a workpiece;
- means for grounding said machining tank and/or table;
- an electrode for detecting a level of the machining fluid;
- a voltage application unit applying a voltage between said electrode and the grounded machining tank and/or table;
- and
- a voltage comparing unit comparing a voltage between said electrode and said grounded machining tank and/or table with a predetermined threshold value to determine whether the machining fluid level is at a predetermined height or not.
3 more elements
Dependencies are inferred from the claim text.