Laserskærehoved med en køleenhed fastgjort til hovedet; laserskærings- og/eller stanseværktøjsmaskine med et sådant laserskærehoved

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 is described. This laser cutting head comprises collimation means (2) to collimate a laser beam coming from the laser emission apparatus, focusing means to focus a collimated laser beam coming out from the collimation means (2) and a casing (4) to house and contain the focusing means, which comprises at least one focusing lens and support means to house and hold the focusing lens and movable along an adjustment direction within said casing (4) so as to change a focal point of the laser beam leaving the focusing lens. Further the laser cutting head (1) comprises a cooling unit (10) fixed to the casing (4) and thermal conductive means arranged to connect the support means to the cooling unit (10) so as to extract by thermal conduction from the support means and from the focusing lens heat generated by the laser beam passing through the focusing lens.