Patent ID: 7604442

Claim:
A multi-axis machine tool comprising: a first slide way ( 2 a ) and a second slide way ( 2 b ) set apart one from the other and extending parallel along a longitudinal axis (X); a machining station ( 3 ) delimited laterally by the slide ways ( 2 a , 2 b ); a cross member ( 4 ) presenting opposite ends ( 4 a , 4 b ) each associated slidably with a respective slide way ( 2 a , 2 b ); a machining head ( 5 ) mounted to the cross member ( 4 ) and positionable over the machining station ( 3 ); characterized in that the cross member ( 4 ), at least, is embodied in a low thermal expansion material (LTEM); wherein the cross member is slidably actuated by a linear motor including a magnet that is positioned adjacent a layer of resilient material able to absorb expansion of the magnet.