Charmilles Technologies S.a.

Agie Charmilles Sa

Agie Sa

Mikron Agie Charmilles Sa

Mikron Agie Charmilles Ag

Nicola Giandomenico

Franck Besson

Ernst Buhler

Rino D'Amario

Reto Knaak

Marco Boccadoro

Jean-Philippe Besuchet

Fabrice Jaques

Friedhelm Altpeter

Gilbert Bovay

Ernst Bühler

David Schranz

Juergen Reichenbaecher

Rosario Lombardo

Thierry Poncet

Jürgen Reichenbächer

A crash prevention device for a machine tool for preventing the collision of a moving part of the machine tool with other machine tool parts or with a workpiece in a working area of the machine tool includes an isolation mechanism that electrically isolates the moving part from the other machine tool parts or the workpiece. The device includes a detection system with a high voltage generator having a first positive connector electrically connected to the moving part and a negative connector electrically connected to the workpiece or to the other machine tool parts. The high voltage generator generates DC, AC, or pulsating voltage. The detection system includes a discharge detection device that detects an electrical discharge between the moving part and the workpiece or between the moving part and the other machine tool parts, then sends a signal to stop or adapt further relative movement of the moving part.

High voltage crash prevention device for machine tools

A method of operating a machine tool, e.g., an electrical discharge machine, and a machine tool system with a machine, e.g. an electrical discharge machine, for machining a workpiece may include numerous configurable modules (DRIVE; GEN; CONTROL) to perform at least one of controlling, monitoring and carrying out of the machining of a workpiece. The modules (DRIVE; GEN; CONTROL) are arranged on the machine and are linked by a data network to a node for at least one of sending data to the node and receiving data from the node.

Method of operating a machine tool, a machine tool system and components thereof

The invention relates to a device and a method for electrical discharge machining of a work piece by means of a working electrode. A sequence of working pulses is applied on the work gap between the working electrode and the work piece. The working pulses comprise eroding pulses for eroding material off the work piece and measuring pulses during which an ignition voltage is applied on the work gap in order to initiate a discharge within the work gap and to measure the corresponding, ignition delay time. The ignition voltage and/or the gap width are adjusted such that the ignition delay time is smaller than an oscillation time of the working electrode oscillating within the work gap due to the electrostatic attraction force and the mechanical restoring force.

Device and method for high frequency electrical discharge machining

The invention relates to a method and a generator for generating a time sequence of discharge pulses separated from each other by pulse pauses for electrical discharge machining. At least two pulse capacitors are discharged each in the form of a partial pulse into the spark gap for forming together a discharge pulse. A discharge pulse having a predetermined waveform is selected from a plurality of discharge pulses having differing predetermined waveforms. The discharge of the at least two pulse capacitors is controlled such that the selected discharge pulse is generated with the predetermined waveform.

Method and generator for electrical discharge machining

The invention relates to a method and generator for generating a time sequence of EDM pulses having a predefined ignition voltage for electrical discharge machining. An AC voltage is generated from a DC voltage, furnished by a bipolar current source. The AC voltage is applied to an isolating transformer disposed between the bipolar current source and the spark gap. A first pulse capacitor is charged by the bipolar current source to a voltage corresponding to the ignition voltage. The ignition voltage provided by the isolating transformer is switched with a selected polarity to the spark gap.

The invention relates to a method and a generator for generating a time sequence of discharge pulses for EDM machining wherein a pulse capacitor () for generating the discharge pulse is charged with a charging voltage (U_chrg) and then discharged into the spark gap. The pulse capacitor () after being discharged is recharged with a charging voltage (U_chrg) having the same polarity as that of the residual voltage (U_end) remaining at the pulse capacitor () after its discharge. Thereafter, the pulse capacitor () is discharged with a discharge pulse into the spark gap, wherein the polarity of the discharge pulse is independent of the polarity of the charging voltage (U_chrg) at the pulse capacitor () after its recharge.

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Troinex, Switzerland

Nicola Giandomenico