A chuck including a chuck body that supports a plurality of jaws. An outer sleeve is axially fixed with respect to the chuck body. A nut is coupled to the outer sleeve, and the nut is movable axially and radially relative to the chuck body. The nut interacts with the jaws such that when the outer sleeve rotates, the nut moves axially and radially relative to the body.

A chuck including a chuck body that supports a plurality of jaws. An outer sleeve is axially fixed with respect to the chuck body. A nut is coupled to the outer sleeve, and the nut is movable axially and radially relative to the chuck body. The nut interacts with the jaws such that when the outer sleeve rotates, the nut moves axially and radially relative to the body.

A tool-transition-free machining method includes: first, a primary turning is conducted, then holes are drilled out by a machining center, and finally a secondary turning is conducted.

A core chuck system (10) comprising a core chuck (11) and a spindle (12) onto which the core chuck (11) is lockable, which core chuck system (10) comprises a ball locking mechanism, a locking button (15) and a cone connection (C).

The invention relates to an arrangement of a machine tool (10) and a workpiece holder (111) connected to a workpiece (14), wherein the workpiece holder (111) comprises at least one surface (111a) pointing radially towards the outside, in particular a substantially planar surface, which is configured for contact with a clamping element (109) of a multi-axis workpiece arm (11) which clamping element (109) is disposed in the radial direction between the workpiece holder (111) and a chuck (120), wherein the clamping element (109) is displaceable relative to the chuck (120) for clamping and releasing the workpiece holder (111), wherein the clamping element (109) is configured to vary a clamping force (F) exerted on the workpiece holder (111) when it is displaced relative to the chuck (120).

A tool-transition-free machining method includes: first, a primary turning is conducted, then holes are drilled out by a machining center, and finally a secondary turning is conducted.

A chuck including a chuck body that supports a plurality of jaws. An outer sleeve is axially fixed with respect to the chuck body. A nut is coupled to the outer sleeve, and the nut is movable axially and radially relative to the chuck body. The nut interacts with the jaws such that when the outer sleeve rotates, the nut moves axially and radially relative to the body.

The invention relates to an arrangement of a machine tool (10) and a workpiece holder (111) connected to a workpiece (14), wherein the workpiece holder (111) comprises at least one surface (111a) pointing radially towards the outside, in particular a substantially planar surface, which is configured for contact with a clamping element (109) of a multi-axis workpiece arm (11) which clamping element (109) is disposed in the radial direction between the workpiece holder (111) and a chuck (120), wherein the clamping element (109) is displaceable relative to the chuck (120) for clamping and releasing the workpiece holder (111), wherein the clamping element (109) is configured to vary a clamping force (F) exerted on the workpiece holder (111) when it is displaced relative to the chuck (120).

A core chuck system (10) comprising a core chuck (11) and a spindle (12) onto which the core chuck (11) is lockable, which core chuck system (10) comprises a ball locking mechanism, a locking button (15) and a cone connection (C).

This invention relates to a maintaining device for mechanical pieces, comprising a slider-holder formed by a body and a head with a central bore in which a part of the piece to be maintained is placed, the piece to be maintained exceeding the head, the head comprising a conical area, the maintaining device having at least two sliders and an actuation element for the sliders, wherein the head comprises at least two lateral bores, one leading into the conical area and the other to the central bore, the sliders are placed in the lateral bores, the sliders being adjustable in the lateral bores, the sliders exceeding the conical area of the head, the actuation element of the sliders being arranged to move the sliders in the corresponding lateral bores along an axis perpendicular to a longitudinal axis of the central bore.