Abstract: A column-type machining arrangement for machining a workpiece is provided, including a machine bed; a traversable column slidably coupled to the machine bed; a tool carrier coupled to the column, the tool carrier configured to detachably couple to a tool for machining the workpiece; a plurality guideways to guide the traversable column on the machine bed, the guideways including a first guideway arranged on the machine bed below the column and a second guideway arranged centrally and laterally next to the column at a height equal to approximately half a height of the column; and a first drive arrangement configured to cause the column to slidably traverse on the machine bed, the first drive arrangement acting on the column at a level of the second guideway.

Abstract: The invention relates to a bearing arrangement for machine-tool spindles, consisting of a hydrostatic radial bearing and at least one radial/axial roller bearing.

Abstract: System for controlling a positioning device, in particular actuators pertaining to machine tools, with an incremental position measuring device with output signals of the form sin &phgr;1, sin (&phgr;1±p) and a control unit converting the output signals into control signals and consequently controlling a positioning device, [lacuna] that means for mixing a correction angle &phgr;2 into the output signals are provided and connected between the position measuring device and the control unit in such a way that the output signals obtain the forms sin (&phgr;1 ±&phgr;2), sin (&phgr;1 ±&phgr;2±p) before they are converted,into control signals by the control unit.

Abstract: A universal-joint tool head, having a tool platform which can move in three axes, at least three connecting rods which are articulatedly mounted on the tool platform and can be displaced independently of one another, at least three linear-movement drives, which are arranged around and at a distance from the tool platform and are parallel to one another, for the connecting rods articulatedly mounted thereon, the connecting rods being articulatedly mounted on the tool platform in such a manner that they can move on all sides and on the linear-movement drives in such a manner that they can pivot about pins running perpendicular to the direction of movement of the linear-movement drives.