A machining center configured for machining workpieces includes at least one column, a beam, at least one slider, a first driving member, a second driving member, a first main shaft and a second main shaft. The column can be configured for supporting the beam. The slider can be disposed on the beam and slidable along a length direction of the beam. Both the first main shaft and the second main shaft can be arranged on the slider and located on two opposite sides of the beam. The first driving member can be configured for driving the slider to slide relative to the beam. The second driving member can be configured for driving the first main shaft and the second main shaft to operate. The first main shaft and the second main shaft can be configured for synchronously or asynchronously machining the workpieces.

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.

The present invention relates to a machining center, and more specifically to a horizontal multi-spindle machining center, in which 2-axis (Y- and Z-axis) or 3-axis (X-, Y- and Z-axis) transfer drive units are disposed in the machining center installed to machine workpieces, in which a ram equipped with spindles is moved in the up-down, front-back, and/or left-right directions of the workpieces, in which the spindles are configured to include a plurality of spindles, i.e., 2 to 8 spindles, so that a plurality of workpieces may be machined simultaneously, and in which tool change is simultaneously performed for tools fastened to the plurality of spindles and configured to machine workpieces by using an auto tool changer (ATC), so that tool change speed may be improved and thus manufacturing efficiency may be improved.

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.

The invention provides a machine tool capable of expanding the slidable range of the moving unit without making the oil feeding system complicated. A machine tool in which a moving unit slides against a supporting unit with a sliding surface of the supporting unit facing a sliding surface of the moving unit, comprises a first oil groove formed on an unexposed portion of the sliding surface of the supporting unit; a second oil groove formed on an unexposed portion of the sliding surface of the moving unit; and an oil inlet formed on one of the first oil groove and the second oil groove. Lubricant fed through the oil inlet is supplied to the other of the first oil groove and the second oil groove.

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.

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.

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.

A machining center configured for machining workpieces includes at least one column, a beam, at least one slider, a first driving member, a second driving member, a first main shaft and a second main shaft. The column can be configured for supporting the beam. The slider can be disposed on the beam and slidable along a length direction of the beam. Both the first main shaft and the second main shaft can be arranged on the slider and located on two opposite sides of the beam. The first driving member can be configured for driving the slider to slide relative to the beam. The second driving member can be configured for driving the first main shaft and the second main shaft to operate. The first main shaft and the second main shaft can be configured for synchronously or asynchronously machining the workpieces.

A flay assembly for separating a workpiece from a manufacturing fixture has a horizontal beam assembly and a pair of vertical beam assemblies. The horizontal beam assembly includes a horizontal beam having a horizontal drive motor. Each vertical beam assembly includes a vertical beam operably engaged to the horizontal drive motor and has a workpiece attachment assembly operably engaged to a vertical drive motor. The workpiece attachment assembly has an attachment mechanism attachable to the workpiece. The horizontal drive motor and the vertical drive motors are operable in a manner to move the vertical beams away from each other along a horizontal drive axis while simultaneously moving each workpiece attachment assembly along a vertical drive axis to cause the attachment mechanisms to pull the workpiece side portions away from the manufacturing fixture while a center support of the horizontal beam maintains a workpiece crown in contact with the manufacturing fixture.