HORIZONTAL MILLING-BORING MACHINE WITH MOBILE COLUMN

摘要

A horizontal milling-boring machine comprising a horizontal bed (6) anchored to the floor (8), a column structure (4) supported by the bed and slidable therealong, a slide carriage (22) slidable vertically along said column structure (4), and a slide (2) supporting the tool head (34) and movable axially to said carriage (22) in a direction perpendicular to the axis of said bed (6), characterised in that: - said bed (6) is monolithic and is separated from the work table (10), - said column structure (4) is formed as a portal, with two columns (16) connected together by an upper crosspiece (18) and provided lowerly, for their support on the bed, with portions (19) lying external to the opening of said portal, which is delimited laterally by said columns (16) and extends lowerly into proximity with said bed (6), - said slide carriage (22) is slidable along the facing internal walls of said columns (16), - guide means (26) and drive means (28, 30, 32) being interposed between said column structure (4) and said bed (6).