LASER CUTTING HEAD FOR MACHINE TOOL

摘要

A laser cutting head (1) powered by a laser emission apparatus by means of optical transmission means and associable with a cutting machine tool includes collimation means (2) to collimate a laser beam coming from the laser emission apparatus, focusing means for focusing a collimated laser beam coming out from the collimation means (2), a casing (4) for receiving and containing the focusing means and supporting means arranged for receiving and holding the focusing means within a cavity of the casing (4) and movable along an adjustment direction (X) so as to change a focal point of the laser beam coming out from the focusing means; the laser cutting head (1) further comprises a cooling unit (10) provided with at least one Peltier cell and a heat dissipation element, thermal conductive connecting means, arranged to connect the supporting means to the cooling unit (10) so as to rigidly link said supporting means and said cooling unit and to extract by thermal conduction from the supporting means and from the focusing means the heat generated by the laser beam passing through the focusing means, and a moving element (37) that supports the thermal conductive connecting means and/or the cooling unit (10) and is slidably coupled to an external wall (4a) of the casing (4) and movable along the adjustment direction (X) so as to move the supporting means and the focusing means.