A tool drive unit for a turning device for machining workpieces has a tool holder driven in a displaceable manner along an infeed direction by a first linear motor and driven in a pendular/displaceable manner in a direction transverse to the infeed direction by a second linear motor. Both linear motors have a moving coil/piezo element. The turning device has a main infeed drive, which produces a primary infeed movement of a turning tool in an infeed direction, and has a main transverse drive which produces a primary transverse movement in a transverse direction transversely to the infeed direction. The turning device has a secondary transverse drive whose movements are oriented in the same direction as the main transverse drive, wherein the turning tool and the axis of rotation can be moved towards one another and away from one another by the superimposition of primary and secondary transverse movements.

A cutting machine configured for the chip-removing machining of a workpiece includes a plurality of required tools. Each tool can exert a tool force onto the workpiece. The cutting machine includes a tool holder for simultaneously holding all of the tools required for operating on the workpiece. A tool slide moves the tool holder to successively align one of the tools to operate on the workpiece, and the tool and the workpiece are movable for chip-removing machining in each manufacturing step. The tool holder includes at least two single-component force transducers. Each single-component force transducer measures a tool force exerted by one of the tools during the chip-removing machining of the workpiece in a force main connection.

A cutting machine configured for the chip-removing machining of a workpiece includes a plurality of required tools. Each tool can exert a tool force onto the workpiece. The cutting machine includes a tool holder for simultaneously holding all of the tools required for operating on the workpiece. A tool slide moves the tool holder to successively align one of the tools to operate on the workpiece, and the tool and the workpiece are movable for chip-removing machining in each manufacturing step. The tool holder includes at least two single-component force transducers. Each single-component force transducer measures a tool force exerted by one of the tools during the chip-removing machining of the workpiece in a force main connection.

A machine tool capable of reducing the time required to transfer a workpiece includes a spindle chuck provided to a spindle that rotates about an axis, and capable of holding a workpiece to be worked on, a temporary placement chuck capable of holding a workpiece, a tool post driver to move the temporary placement chuck relatively to a facing position in which the spindle-side workpiece holder and the workpiece holder for temporary placement are able to transfer or receive a workpiece to or from each other, and to a separated position in which the spindle-side workpiece holder and the workpiece holder for temporary placement are able to transfer or receive a workpiece individually, and a loader including a spindle-corresponding workpiece holder and a temporary placement-corresponding workpiece holder disposed to face the spindle chuck and the temporary placement chuck in the separated position, respectively.

A motorized drapery system having an elongated rotating drive element that has a non-circular cross-sectional shape such as square, rectangular, trapezoidal, cross shaped or any other non-circular shape that is twisted. In one arrangement the drive element is twisted in one direction along its entire length. In another arrangement the drive element is twisted in one direction in a first section and twisted in an opposite direction in a second section thereby providing a center opening/center closing drapery. A plurality of rings are positioned around the drive element including at least one driver ring that includes a feature that connects to the drive element and is configured to facilitate movement along the drive element, and a plurality of idler rings that are configured to slide along the drive element. A curtain is connected to the rings and opens and closes as the rings move along the drive element.

A profile cutting tool includes a base, a clamp mounted to the base configured to hold an elongate workpiece, a pivotable frame pivotally mounted to the base, and a workpiece cutting assembly mounted to the pivotable frame and comprising a cutter configured to cut the elongate workpiece held in the clamp. When the pivotable frame pivots with respect to the base, the cutter is configured to move along an arcuate profile cutting path having a first radius.

A profile cutting tool includes a base, a clamp mounted to the base configured to hold an elongate workpiece, a pivotable frame pivotally mounted to the base, and a workpiece cutting assembly mounted to the pivotable frame and comprising a cutter configured to cut the elongate workpiece held in the clamp. When the pivotable frame pivots with respect to the base, the cutter is configured to move along an arcuate profile cutting path having a first radius.

The tool holding device includes: a casing including a first surface, a second surface opposed to the first surface, and a first projection and a second projection projecting opposite to the first surface from the second surface; a first tool holding part disposed on the first surface at a position opposed to the first projection; a second tool holding part disposed on the first surface at a position opposed to the second projection; a driving-force input unit disposed at the end of the first projection and rotated by driving force being inputted; a first shaft extending in an axial direction perpendicular to the first surface and the second surface, the driving-force input unit and the first tool holding part being disposed at one end and the other end of the first shaft, respectively; a second shaft extending in the axial direction and having one end housed in the second projection, the second tool holding part being disposed at the other end of the second shaft; and a rotation transmitting unit rotating the second shaft in response to rotation of the first shaft.

A tool holder for a lathe having a spindle permits improved arrangement of tools on a turret to maximize the allowable workpiece outer diameter for a given tool. A Z-axis feed mechanism moves the spindle and the turret relative to each other in a Z-axis direction along a center axis of the spindle, while an X-axis feed mechanism moves the spindle and the turret relative to each other in an X-axis direction orthogonal to the Z-axis direction. A plurality of tool holders is attached to the turret, each having a tool holding part. At least one of the tool holders holds the tool at a holding position such that, when indexed to a machining position by rotation of the turret, a cutting-edge reference point of the tool is offset with respect to an X-Z plane including a center axis of the turret.

A tool holder for a lathe having a spindle permits improved arrangement of tools on a turret to maximize the allowable workpiece outer diameter for a given tool. A Z-axis feed mechanism moves the spindle and the turret relative to each other in a Z-axis direction along a center axis of the spindle, while an X-axis feed mechanism moves the spindle and the turret relative to each other in an X-axis direction orthogonal to the Z-axis direction. A plurality of tool holders is attached to the turret, each having a tool holding part. At least one of the tool holders holds the tool at a holding position such that, when indexed to a machining position by rotation of the turret, a cutting-edge reference point of the tool is offset with respect to an X-Z plane including a center axis of the turret.