Abstract: A Cartesian machine tool, of the type with a horizontal slide and a machining head supported in a cantilever manner by the slide, includes a slide carriage, with respect to which the slide can move horizontally with corresponding elements of horizontal translation, and a post, which includes two opposite guiding columns for the vertical movement of the slide carriage with elements of vertical translation. The slide carriage includes a first front part coupled to the post with the elements of vertical translation and a second rear part coupled to the first part with elements of translation in a transverse direction with respect to a direction of motion of the slide with respect to the carriage.

Abstract: A device for fixing a blank to a modular support system includes a body having cylindrical symmetry which is provided at one end with a centering collar and, in a central region, with a perimetric recess that defines an engagement undercut for a corresponding locking component of a modular support system. The body has an axial through hole for a threaded fixing element. The axial through hole is open onto a coaxial seat for resting the head of the threaded fixing element, and it has a larger diameter than the outside diameter of the stem of the threaded fixing element. The head of the threaded fixing element has a resting surface, a substantially spherical geometry, and a smaller outside diameter than the corresponding internal dimension of the resting seat in which the threaded fixing element is accommodated.

Abstract: A Cartesian machine tool, of the type with a horizontal slide and a machining head supported in a cantilever manner by the slide, includes a slide carriage, with respect to which the slide can move horizontally with corresponding elements of horizontal translation, and a post, which includes two opposite guiding columns for the vertical movement of the slide carriage with elements of vertical translation. The slide carriage includes a first front part coupled to the post with the elements of vertical translation, and a second rear part coupled to the first part with elements of translation in a transverse direction with respect to a direction of motion of the slide with respect to the carriage.

Abstract: A work method for a Cartesian machine tool includes the following steps starting machining of a workpiece; carrying out a machining cycle; and carrying out a qualification operation, i.e., an operation to check a relative positioning system, on board the machine tool, by way of comparison with a positioning system with absolute reference for calibration, which is adapted to check the displacement of the indications of the positioning systems on board the machine, i.e., of the relative reference system, with respect to the positions of an absolute reference system for calibration. The method further includes the steps of checking the outcome of the qualification operation, If the qualification operation is passed successfully, then proceed with an operation to measure the workpiece prior to finishing. If the qualification is not passed, then proceed with a compensation step, which includes one or more compensation operations.

Abstract: A Cartesian numerically controlled machine tool for high-precision machining includes a footing, a first part with first movement elements for the movement of a second part with respect to a first controlled axis, a second part with second movement elements for the movement of a third part with respect to a second controlled axis, and a third part with third movement elements for the movement of a machining head with respect to a third controlled axis. The Cartesian machine tool further includes a machining head, and, on board, optical elements for detecting and monitoring the position of at least one reference nodal point for each of one or more of the controlled axes with respect to a reference that is integral with a part of the machine tool.

Abstract: A device for fixing a blank to a modular support system includes a body having cylindrical symmetry which is provided at one end with a centering collar and, in a central region, with a perimetric recess that defines an engagement undercut for a corresponding locking component of a modular support system. The body has an axial through hole for a threaded fixing element. The axial through hole is open onto a coaxial seat for resting the head of the threaded fixing element, and it has a larger diameter than the outside diameter of the stem of the threaded fixing element. The head of the threaded fixing element has a resting surface, a substantially spherical geometry, and a smaller outside diameter than the corresponding internal dimension of the resting seat in which the threaded fixing element is accommodated.

Abstract: A horizontal milling-boring machine including a horizontal bed anchored to the floor, a column structure supported by the bed and slidable there along, a slide carriage slidabe vertically along said column structure, and a slide supporting the tool head and movable axially to said carriage in a direction perpendicular to the axis of said bed, characterized in that: said bed is monolithic and is separated from the work table,—said column structure is formed as a portal, with two columns connected together by an upper crosspiece and provided lowerly, for their support on the bed, with portions lying external to the opening of said portal, which is delimited laterally by said columns and extends lowerly into proximity with said bed—the slide carriage is slidable along the facing internal walls of said columns,—guide structure and drive structure being interposed between said column structure and said bed.

Abstract: A horizontal milling-boring machine including a horizontal bed anchored to the floor, a column structure supported by the bed and slidable therealong, a slide carriage slidable vertically along said column structure, and a slide supporting the tool head and movable axially to said carriage in a direction perpendicular to the axis of said bed, characterized in that: said bed is monolithic and is separated from the work table,—said column structure is formed as a portal, with two columns connected together by an upper crosspiece and provided lowerly, for their support on the bed, with portions lying external to the opening of said portal, which is delimited laterally by said columns and extends lowerly into proximity with said bed—said slide carriage is slidable along the facing internal walls of said columns,—guide means and drive means being interposed between said column structure and said bed.

Abstract: A double rotatable spindle head of non-perpendicular axis type has a first half head and a second half head. The first half head is connected to the machine structure and rotates about a first axis. The second half head is coupled to the first half head on a flat surface and rotates about a second axis perpendicular to the flat surface. The rotation of the first and second half heads is achieved by a first and second direct motor, respectively.

Abstract: A double-rotatable spindle head of non-perpendicular axis type for machine tools, with a first half-head (2) pivoted to the machine structure (4) about a first axis (10) and, for supporting the tool spindle (8), a second half-head (6) coupled to the first half-head (2) on a flat surface (20) and pivoted to it about a second axis (22) perpendicular to said flat surface (20), characterised by comprising a first direct motor (16, 18) for rotating said first half-head (2) with respect to said machine structure (4) and a second direct motor (28, 30) for rotating said second half-head (6) with respect to said first half-head (2).