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WORKING FLUID SUPPLY CONTROL APPARATUS FOR WIRE ELECTRIC DISCHARGE MACHINE

  • US 20150202704A1
  • Filed: 01/22/2015
  • Published: 07/23/2015
  • Est. Priority Date: 01/23/2014
  • Status: Abandoned Application
First Claim
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1. A working fluid supply control apparatus for a wire electric discharge machine including a first pump that supplies a working fluid to a gap between a wire electrode and a workpiece through an upper nozzle and a second pump, provided independently of the first pump, that supplies a working fluid to the gap through a lower nozzle, the working fluid supply control apparatus comprising:

  • a pressure setting section that sets a target value for a pressure of the working fluid supplied through each of the upper and lower nozzles in accordance with an electric discharge machining condition;

    a pressure detection section that detects the pressure of the working fluid supplied through each of the upper and lower nozzles; and

    a working fluid supply control section that controls a supply amount of the working fluid supplied by each of the pumps through each of the upper and lower nozzles independently so that a value of the pressure of the working fluid through each of the upper and lower nozzles detected by the pressure detection section follows the target value for the pressure of the working fluid through each of the upper and lower nozzles set by the pressure setting section.

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