The invention relates to the technical field of
laser cutting, and discloses a sectional material
laser cutting machine for manufacturing an outer frame of a
metal casement window, which comprises a bottom frame, a bracket arranged on the bottom frame, a tool clamp arranged on the bracket and used for clamping and conveying a sectional material, and
laser cutting equipment arranged on the bottom frame, and further comprises a dustproof
assembly and a plurality of groups of adsorption assemblies, and the dustproof
assembly comprises a cover body covering the sectional material
machining area, a channel allowing the
laser cutting head to pass through is formed in the top of the cover body, two sets of elastic sealing covers are symmetrically arranged in the channel, and a guide kit is slidably connected between the two sets of elastic sealing covers. By arranging the dustproof
assembly and the cover body, a
closed cavity can be formed in a sectional material
machining area, the
diffusion range of chippings and dust is limited in space, meanwhile, two sets of elastic sealing covers symmetrically arranged in the top channel of the cover body are matched with multiple sets of telescopic pieces, and when the guide sleeve piece moves along with a
laser cutting head, the guide sleeve piece can be prevented from falling off. And effective sealing is formed on the area covered by the guide sleeve in a sliding manner.