Machining centers for metal profiles

A profile machining center for machining profiles, particularly for profiles made of aluminum, said profiles having a longitudinal extent greater than their cross-section dimension, said machining center comprising:

• a base defining a work surface extending longitudinally with first end and a second end, said base being configured to receive a profile manually laid by an operator or by a specially-designed automatic feeder,
• a plurality of members for supporting and locking the profile on said base,
• a pair of vertical columns supporting motorized spindles, wherein
• each column is located next to said base and is configured to be displaced, in either direction, parallel to the longitudinal extent of the base along respective slide guides,
• said slide guides are located next to said base,
• each vertical column is equipped with a first carriage and a second carriage,
• said first carriage is configured to vertically slide in either direction along its respective vertical column,
• said second carriage is mounted to the first carriage and is configured to slide in either direction perpendicularly to its respective vertical column,
• an arm is fixed to the second carriage of each vertical column and is movable with said second carriage,
• said arm extends in cantilever fashion in a direction perpendicular to the longitudinal extent of the base,
• said motorized spindles are placed on said arm,
• motor means are provided for imparting movements to the vertical columns and to the first and second carriages, said profile machining center further comprising:
• a portal structure having an upper beam above said base, wherein:
• said upper beam is equipped with a motorized spindle for rotating tools,
• said motorized spindle of the upper beam is mounted to a support body configured to angularly displace around a pivot for rotating about a first axis parallel to the longitudinal extent of the base,
• said pivot is supported by a bracket which is in turn configured to angularly move around a second axis extending perpendicular to a plane defined by said first axis and said direction perpendicular to the longitudinal extent,
• said bracket is carried by a structure slideable on respective guides relative to said upper beam of said portal structure, in either direction along at least two axes,
• the displacement in either direction along the longitudinal extent of the base is imparted by displacement of the portal structure relative to said base.