Gf Machining Solutions Ag

Mikron Agie Charmilles Sa

Mikron Agie Charmilles Ag

David Schranz

Jean-Philippe Besuchet

Nicola Giandomenico

Gilbert Bovay

Juergen Reichenbaecher

Jürgen Reichenbächer

A calibration method for numerical controlled machine tools (), which uses a kinematic model to generate a compensation model for the positioning error occurring with the movement of the linear (X, Y, Z) and rotation axes (B, C, A) of a machine tool (). The calibration method measures the positions of a calibration ball () with a measurement sequence which includes the combined movement of the calibration ball () around two rotation axes (C, B or C, A), wherein the measurements around a first rotation axis (C) include at least two rotational position movements around a second axis (B or A).

Kinematic calibration

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

Growing community of inventors

Ipsach, Switzerland

David Schranz