Electrode clamping system for sink-type electrical discharge machines
OwnerMarjan Dobovsek, Mark Otto +3inventors
InventorsMarjan Dobovsek, Mark Otto, Marina Paradizova, Boris Mrhar, Tomaz Martincic
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Abstract
An electrode clamping system for an EDM-sinking system provides a two-sided dielectric fluid supply to a clamped electrode by placing supply channels in both the fixed and movable parts of the electrode clamping holder. An automatic control circuit controls the flow of the dielectric fluid with reference to a contamination particle concentration in the gap between the electrode and the workpiece, and automatically reduces the flow to a value at which electrode vibrations disappear when changing from rough machining to fine machining.
Claims13
An electrode clamping system for a sinking electrical discharge machine (EDM), said system comprising an adjustable holder for clamping an electrode, and including at least one chamber for supplying dielectric fluid, with said at least one chamber feeding into and terminating in a plurality of nozzles each of which directs a flow of the dielectric fluid laterally into a gap between the electrode and a workpiece,
- wherein a dielectric fluid pressure and flow of the dielectric fluid are controlled by an automatic control circuit, the dielectric fluid flow being controlled with reference to a contamination particle concentration in the gap between the electrode and the workpiece.
An electrode clamping system for a sinking electrical discharge machine (EDM), said system comprising an adjustable holder for clamping an electrode in a position such that there exists a gap between a clamped electrode and a workpiece to be machined by the EDM, and said holder including:
- a basic part having a dielectric fluid feed pipe that splits a supply of dielectric fluid into first and second components;
- a fixed part having a first supply channel and a first nozzle, said feed pipe feeding the first component of dielectric fluid into said first supply channel and said first supply channel supplying the first component of dielectric fluid to said first nozzle;
- a flexible part having a second supply channel and a second nozzle, said feed pipe feeding the second component of dielectric fluid into said second supply channel and said second supply channel supplying the second component of dielectric fluid to said second nozzle,
- said first and second nozzles being opposed to each other to provide a lateral symmetrical supply of the dielectric fluid into the gap on both sides of the clamped electrode;
- and
- a control for actuating movement of said flexible part in order to clamp an electrode in position between said flexible part and said fixed part.
Dependencies are inferred from the claim text.