Machine of electrical discharge machining and positioning method for this machine

The machine has a machining tool (37) to machine a piece (45) under the effect of spark erosion. A detection device has an optical detection apparatus (51) i.e. charge coupled detector camera, that visualizes a set of marking features situated on a tool and tool attachment unit assembly (41) along a...

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Bibliographische Detailangaben
Hauptverfasser:	WAELDER, GEORG, FOERSTER, RALF, DIOT, JEAN-CLAUDE
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOTDIRECTED TO A PARTICULAR RESULT DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g.ARRANGEMENTS FOR COPYING OR CONTROLLING MACHINE TOOLS MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OFPARTICULAR DETAILS OR COMPONENTS METAL-WORKING NOT OTHERWISE PROVIDED FOR PERFORMING OPERATIONS SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL TRANSPORTING WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OFELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKESTHE PLACE OF A TOOL
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Beschreibung
Zusammenfassung:	The machine has a machining tool (37) to machine a piece (45) under the effect of spark erosion. A detection device has an optical detection apparatus (51) i.e. charge coupled detector camera, that visualizes a set of marking features situated on a tool and tool attachment unit assembly (41) along a predetermined optical axis (52). The apparatus visualizes another set of marking features situated on a piece and machine part assembly (42) along the axis. The visualized features permit the evaluation of any relative geometrical drift between the assemblies and the correction of the drift. An independent claim is also included for a positioning method for a spark machining machine.