Abstract: A transfer center for machining at least one workpiece is disclosed, having a machine frame, having a plurality of preferably stationary machining spindles arranged in the machine frame—particularly in a machining head, having a workpiece carrier on which at least one workpiece to be machined is arranged by means of a respective clamping device, and having a workpiece manipulator arranged in the machine frame, onto which workpiece manipulator the workpiece carrier is flange-mounted and which is movable by drive means in at least one spatial direction in relation to the machine frame. To achieve a high machining accuracy in parallel machining, according to one proposal, the transfer center—in order to compensate for a deviation between the actual position and the desired position of the workpiece or workpieces—has a position compensation system with at least two pressure elements situated between the workpiece or workpieces and the machine frame, whose operating directions enclose an angle with each other.

Abstract: A machine tool has a multiplicity of stationary tool spindles that are optionally displaceable from a retracted rest position into an extended working position are positioned at various positions in a frame-like stand which defines and comprises machining space, and has a workpiece manipulator by way of which a workpiece support is movable multi-axially in translation and preferably also in rotation. In order to create advantageous loading conditions, it proposed that a loading door is associated with at least one of the leg walls defining the machining space, and that a workpiece support holder, which is equipped with a coupling for the workpiece support, is arranged on at least one, preferably on both, loading door panel fronts.

Abstract: The invention relates to a machine tool (1) having a multiplicity of stationary tool spindles (3) that are optionally displaceable from a retracted rest position into an extended working position and are positioned at various positions in a frame-like stand (2) which defines and comprises a machining space, and having a workpiece manipulator (4) by way of which a workpiece support (5) is movable multi-axially in translation and preferably also in rotation. In order to create advantageous loading conditions, it is proposed that a loading door (8) is associated with at least one of the leg walls (7) defining the machining space (6), and that a. workpiece support holder (10), which is equipped with a coupling (11) for the workpiece support (5), is arranged on at least one, preferably on both, loading door leaf fronts (9).

Abstract: The invention relates to a machine tool (1), comprising a plurality of fixed tool spindles (3) and such that can optionally be displaced from a retracted idle position to an extended working position and can be positioned at different positions in a frame-like rack (2), and a workpiece carrier (4) with at least one workpiece holder (5), with the workpiece (4) carrier being movable at least in several axes in a translational manner and preferably also in a rotational manner. In order to provide advantageous constructional conditions it is proposed that at least one of the tool spindles (3) is associated with a tool magazine (7) plus tool changer (8).

Abstract: The invention relates to a method for activating a workpiece manipulator (4) of a machine tool (1), comprising a control device which prescribes machining paths (6) for a workpiece by means of a computing unit, which machining paths are travelled by the workpiece manipulator (4) from a machine starting position (A), wherein the workpiece (5) which can be moved by the workpiece manipulator (4) in a multi-axially translatory and preferably also rotating manner is passed to a plurality of tools (3) one after the other for the step-by-step machining. In order to provide advantageous conditions it is proposed that in the case of termination of machining the workpiece manipulator (4) is made to move with the workpiece (5) back over the path of movement (7) assigned to the respective machining step into a position (8) prior to this machining step, in which the workpiece manipulator is optionally stopped or from which the workpiece manipulator is moved into the machine starting position (A).

Abstract: The invention relates to a machine tool (1), comprising a plurality of fixed tool spindles (3) and such that can optionally be displaced from a retracted idle position to an extended working position and can be positioned at different positions in a frame-like rack (2), and a workpiece carrier (4) with at least one workpiece holder (5), with the workpiece (4) carrier being movable at least in several axes in a translational manner and preferably also in a rotational manner. In order to provide advantageous constructional conditions it is proposed that at least one of the tool spindles (3) is associated with a tool magazine (7) plus tool changer (8).