A reconfigurable machining center includes a base structure extending in a first direction, a movable crossmember movable in the first direction and provided with a machining head, supporting elements on the base structure to enable movement of the movable crossmember along the first direction, a first leadscrew rack, integral with the base structure and having a first helical circular toothed sector, and extending along the entire base structure parallel to the first direction, and a first screw rotatably coupled to the movable crossmember and engaging a corresponding first leadscrew rack, and having a rotation axis parallel to the first direction. The longitudinal extension of the base structure in the first direction is an integer multiple of the pitch of tooth of the leadscrew racks, and the base structure includes coupling elements adapted to couple the base structure to a following and/or preceding adjacent base structure along the first direction.

Disclosed is a machine tool including: a base having a pair of first-axial slides facing each other at both sides of a mounting space; a saddle coupled to the first-axial slides of the base to slide in a first axis direction and having a pair of second-axial slides facing each other; a crosspiece coupled to the second-axial slides of the saddle to slide in a second axis direction and having a pair of third-axial slides facing each other; a vertical ram coupled to the third-axial slides of the crosspiece to slide in a direction perpendicular; and a table disposed in the mounting space of the base to be able to rotate relative to the base.

A method for determining the topography of a machine tool that includes a machine bed, a tool carrier and a component carrier. The machine bed defines a Cartesian coordinate system of the machine tool starting from a machine zero point. The tool carrier can be moved along linear guides aligned in parallel to axes of the coordinate system and has at least one tool holder for holding a cutting tool. The component carrier is at a distance from the tool carrier in the direction of a first axis and can be at least almost completely pivoted around an axis of rotation aligned in parallel to a second axis, if necessary, and includes a component receptacle aligned in parallel to the first axis, through which a component to be machined can be held.

The invention relates to a bridge (B) for laser cutting machines. In the latter, a laser cutting head (K) is guided over a workpiece support (W) by means of a guide system. The bridge (B) is configured in the form of a substantially straight and box-like profile (1) which has at least one guide for a cutting carriage carrying the laser cutting head (K). According to the invention, at least two side faces (10, 11) of the profile (1) that are located opposite one another with regard to the vertical plane of symmetry (VSE) of the bridge enclose a non-zero angle (a) of less than 180 that opens in the direction of the machining region, at least over a part of the height of said profile (1).

A linear motion mechanism includes: a shaft; a base member having a through hole through which the shaft can be inserted; a static pressure bearing provided between the shaft disposed in the through hole and the base member to slidably support the shaft relative to the base member by introducing a pressurized fluid to the shaft; and an annular member provided between the static pressure bearing and the base member to elastically support the static pressure bearing.

A straddle-type steel section processing device of multiple saddles is disclosed, which comprises: a machine unit, a holding unit, a Z-axis direction processing unit, a pair of Y-axis direction processing units, a Y-axis direction guiderail unit and a Y-axis direction driving unit. In an embodiment, the Y-axis direction processing units are arranged respectively at the two sides of the Z-axis direction processing unit while allowing each to slide in a Y-axis direction as each Y-axis direction processing unit is further being mounted on a crossbeam of a base fitted on the machine unit. By sildably mounting the side saddles of the Y-axis direction processing unit on an end surface of the crossbeam, not only a desire condition of stable positioning can be achieved, but also the processing accuracy is enhanced.

A machine tool includes: a movably configured saddle; and a bed having a sliding surface supplied with a lubricant and allowing the saddle to slide thereon, and receiving the weight of the saddle. The sliding surface has a recess continuously extending in a direction in which the saddle moves. By this configuration, a machine tool which easily holds a lubricant on a sliding surface and a method for producing a structure for the machine tool having the sliding surface are provided.

The present invention relates to a machining center, and more particularly, to a machining center which allows a bed and a column to be integrated, thereby being capable of reducing the overall size of the apparatus and saving production costs and allows vibrations and displacements occurring in each of 5 axes to be rapidly transmitted to other axes to minimize relative vibrations and displacements between the axes, thereby being capable of performing high-precision machining.

A machine tool, in particular a lathe, including a machine frame having an upper tool carrier support portion, a lower tool carrier support portion and a spindle carrier portion arranged between the upper and lower tool carrier support portions, a spindle carrier, being arranged on or at a height of the spindle carrier portion of the machine frame, supporting a main spindle configured to receive a workpiece W, the main spindle having a horizontally arranged spindle axis, one or more tool carriers, each tool carrier being supported on a tool carrier assembly being arranged on either the upper tool carrier support portion or the lower tool carrier support portion of the machine frame. Wherein a lower side-surface of the lower tool carrier support portion, to which the one or more tool carriers are mountable, is arranged to have an overhanging inclination.

The machine tool according to the invention comprises a workpiece support (16) that is held so as to be pivotable about an A-axis. In doing so, the workpiece support (16) is held asymmetrically to the extent that it is connected only on one side to a rotary positioner (27). However, both sides are held on the slides (25, 26), each being connected to a linear drive (30, 34). The slide (26) without rotary drive runs only on one guide rail (24), whereas the slide (25) with the rotary positioner (27) runs on two guide rails (22, 23). In view of the Z-acceleration, the workpiece support (16) is guided symmetrically. The result is a compact and still highly robust machine concept.