Patent ID: 7910857

Claim:
A laser machine tool, in particular for carrying out cutting or welding operations, comprising: a supporting structure, beneath which a workpiece is horizontally positionable, and a moving member, carried by said supporting structure and bearing a vertical-axis laser head, designed for directing a laser beam focused on said workpiece, said moving member comprising: a first slide and a second slide, which can be linearly displaced along a u-axis and a v-axis, the u-axis and v-axis being a pair of mutually orthogonal horizontal slide cartesian axes, said first slide and said second slide connected to respective slide guides of respective slide blocks, which are directed orthogonally to the respective axes of displacement and along which said laser head is mobile, only one end of each of said respective slide blocks being connected to said supporting structure, whereby the displacement of each slide of said first slide and said second slide along the corresponding cartesian u-axis and v-axis produces a corresponding displacement of the laser head with respect to another slide of said first slide and said second slide; first and second actuator means for controlling the displacements of said first slide and said second slide, in a relatively restricted space and with high speeds and accelerations; and balancing means with mobile balancing weights being operatively associated to said first slide and said second slide; said moving member displaceable on said supporting structure along a horizontal cartesian y-axis with movements involving relatively low accelerations; and said supporting structure and said workpiece displaceable with respect to one another along a horizontal cartesian x-axis, orthogonal to said horizontal cartesian y-axis, with movements involving relatively low accelerations, whereby said moving member and said workpiece are positionable with respect to one another in a relatively wide space and in a co-ordinated way with said displacements of said laser head in a relatively restricted space; wherein neither the u-axis nor the v-axis is parallel to the v-axis.