A device (1) for the movement of sheet-like pieces (P) in a machine tool (M), including a frame (10) moving towards or away from the machining surface (P1) of the machine, a gripping device (20) including a sheet-like element (21) with a gripping surface (21a) having openings (24) and mounted on the frame (10) rotatingly around at least one axis (x) substantially orthogonal to the direction of movement (D) of the frame (10) and element for the creation of a vacuum (25) communicating with the openings (24) and adapted to generate a vacuum pressure at the openings (24), which, when the gripping surface (21a) is substantially next to the machining surface (P1), makes it possible to detach the pieces (P) from the machining surface and keep them on the gripping surface.

The invention relates to a device (10) for machining work pieces, particularly for sharpening tools with cutters for cutting-machining, such as for example drills, milling tools or the like, the device (10) comprising a monolithic machine block (12) with at least two functional surfaces (14, 16) disposed at an angle with respect to each other, a work piece support arrangement (18) for clamping-in a work piece (38) to be machined, a machining unit (20), on which at least one tool (66, 68, 70) can be attached to machine the work piece (38), and a support (22), on which the machining unit (20) can be displaceably attached, wherein on a first functional surface (14) of the two functional surfaces (14, 16) of the machine block (12) the machine block (12) has at least one first linear guide (24, 26) for guiding a work piece support arrangement (18) along at least one first guide axis (X1), and on the second functional surface (16) of the two functional surfaces (14, 16) of the machine block (12) the machine block has at least one second linear guide (40, 42) for guiding the support (22) for the machining unit (20) along at least one second guide axis (Z1), the first functional surface (14) or the second functional surface (16) being allocated at least one third linear guide (46, 48) for guiding the work piece support arrangement (18) or the machining unit (20) along a third guide axis (Y1), the machining unit (20) being displaceable relative to the support (22), the first, second and third guide axes (X1, Y1, Z1) each extending inclined with respect to the other, the work piece support arrangement (18) being formed with a first axis of rotation (A1) for rotating the work piece (38) and the machining unit (20) or the work piece support arrangement (18) being pivotable about at least one second axis of rotation (C1, C2, B1).

To provide a cutting apparatus capable of effectively removing swarf that scatters in a machining space, while reducing cost. A cutting apparatus includes: a machining mechanism on which a tool for machining a workpiece is mounted; a placement base that is disposed to face the machining mechanism in a machining space and that is movable in a first direction with the workpiece placed thereon; an open/close covering member that extends in the first direction thereby to contain therein the placement base and to form at least part of the machining space; and a drive mechanism that is isolated from the machining space and that moves the placement base in the first direction.

A device for machining a surface of a workpiece includes a workpiece holder configured to rotate the workpiece about a workpiece rotational axis, a tool having a tool rotational axis and at least one blade having a blade radius of curvature and a tool holder configured to position the tool such that an active point of the blade comes into engagement with the workpiece and configured to pivot the tool about the tool rotational axis and to configured to move the tool with an advancing motion such that the active point of the blade shifts along the blade. The advancing motion is defined by a curve having at least a first radius of curvature and a second radius of curvature.

A profiling machine, comprising: an annular guide (2), which defines a closed-loop path; a carriage (3), movable along the annular guide (2); a support arm (4), rotatably associated with the carriage (3) around a rotation axis (X); a profiling tool (10), associated with the support arm (4); a pusher (5), configured to drive the support arm (4) in rotation in an active direction, in order to push the profiling tool (10) towards a profile (P) to be machined.

The machine tool (10) has an asymmetrically constructed workpiece positioning device (16) which runs on three guide rails (17, 18, 19). It comprises two carriages (20, 45) which are connected together by a workpiece carrier (31) that is mounted so as to be rotatable about the A axis. While the first carriage (20) serves for the longitudinal and rotary positioning of the workpiece carrier (31), the second carriage (45) is provided merely for supplementary weight support. This results in a mechanically slimline, low-weight structure with high positioning accuracy. High dynamic loadability and thus a high machining rate and particularly high vibration resistance is allowed.

The machine tool has a machine bed (10) having a first horizontal linear guide (1) and a second horizontal linear guide (2) arranged at right angles to the first linear guide (1). On the first linear guide (1) is arranged, in an axially displaceable manner, a workpiece clamping fixture (3), which is swivelable about a swivel axis (4) oriented parallel to the second linear guide (2) and is rotatable about a rotation axis (5) oriented at right angles to the swivel axis (4). On the second linear guide (2) a toque motor driven swivel arm (6) is axially displaceable, the swivel axis (7) of which is arranged parallel to the first linear guide (1) and which on its free end bears a tool spindle (8), the axis (9) of which is oriented parallel to the first linear guide (1).

This machine tool has a first rotating feed shaft around a first inclined axis line. Table coordinates are set ahead of time in the machine tool. The table coordinates have imaginary first, second and third linear motion axes that are perpendicular to each other, and an imaginary first rotating feed axis around an imaginary first axis line. The imaginary third linear motion axis is parallel to a third linear motion shaft. One imaginary linear motion axis of the imaginary first linear motion axis or the imaginary second linear motion axis is set above the surface of a workpiece attachment surface, and the imaginary first axis line is set parallel to the one imaginary linear motion axis. A computation unit computes the coordinate values of the imaginary first rotating feed axis in the table coordinates, and a display unit displays the coordinate values of the imaginary first rotating feed axis.

A horizontal machining center serving as a machine tool includes: a bed; a front-side guide rail shaped to extend linearly along an upper surface of the bed and attached to the bed; and a column provided on the upper surface of the bed and fixed to the bed. The column has a facing portion arranged to face an end of the front-side guide rail in an X-axis direction in which the front-side guide rail linearly extends. The facing portion is provided with a hole through which the front-side guide rail can be inserted. By such a configuration, a machine tool with excellent workability during removal of an elongate body is provided.

To provide a cutting apparatus capable of effectively removing swarf that scatters in a machining space, while reducing cost.

A cutting apparatus includes: a machining mechanism on which a tool for machining a workpiece is mounted; a placement base that is disposed to face the machining mechanism in a machining space and that is movable in a first direction with the workpiece placed thereon; an open/close covering member that extends in the first direction thereby to contain therein the placement base and to form at least part of the machining space; and a drive mechanism that is isolated from the machining space and that moves the placement base in the first direction.