Abstract: A laser cutting head powered by a laser emission apparatus includes a collimation device to collimate a laser beam coming from the laser emission apparatus and a focusing lens which focuses a collimated laser beam from the collimation device. The lens is supported in a casing and is movable along an adjustment direction to change a focal point of the laser beam. A cooling unit is connected with the casing and includes at least one Peltier cell and a heat dissipation element. A thermal conductive element connects a support for the lens with the cooling unit to extract heat generated by the laser beam passing through the lens by thermal conduction from the support and from the lens.

Abstract: A laser cutting head powered by a laser emission apparatus including optical transmission devices and associated with a cutting machine tool, includes a collimation device to collimate a laser beam coming from the laser emission apparatus, a focusing device to focus a collimated laser beam leaving the collimation devices, and a casing to house the focusing unit. The focusing unit includes one focusing lens and support devices to house and hold the focusing lens and move it along an adjustment direction within the casing in order to vary a focal point of the laser beam leaving the focusing lens. The laser cutting head includes a cooling unit secured to the casing and heat conducting devices used to connect the support devices with the cooling unit in order to extract the heat generated by the laser beam crossing the focusing lens by thermal conduction from the support devices and the focusing lens.

Abstract: 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 foc

Abstract: A laser cutting head powered by a laser emission apparatus including optical transmission devices and associated with a cutting machine tool, includes collimation device to collimate a laser beam coming from the laser emission apparatus, focusing device to focus a collimated laser beam leaving the collimation devices and a casing to house and contain the focusing unit. The focusing unit includes at least one focusing lens and support devices to house and hold the focusing lens and move it along an adjustment direction within the casing in order to vary a focal point of the laser beam leaving the focusing lens. The laser cutting head includes a cooling unit secured to the casing and heat conducting devices used to connect the support devices with the cooling unit in order to extract the heat generated by the laser beam crossing the focusing lens by thermal conduction from the support devices and from the focusing lens.