Abstract: The invention relates to a chuck (1) for a machine tool for machining a tubular workpiece (26) which rotates about a rotational axis that coincides with the center of the chuck, comprising at least two chucking slides (7a, b, c) that are designed to be positionable radially with respect to the rotational axis in order to release and chuck the workpiece, are arranged on the end side of and in a manner distributed uniformly around the circumference of a chuck head plate, and bear chucking jaws (8a, b, c). Such a chuck is intended to be created with improved operating characteristics and extension to all chucking functions.

Abstract: The invention relates to a machine for machining the ends of pipes which, for control purposes, is assigned at least one computer unit and in the case of which the tools (13) are arranged displaceably such that they can engage radially in relation to the pipe in a tool head (11) which is driven by a motor (4) via a main spindle (10) guided through a headstock (6), the tool head rotating coaxially about the fixedly clamped pipe end, wherein the tools are arranged in tool holders in the form of slides (14A, 14B; 15A, 15B; 16A, 16B) and adjacent slides together mesh with a toothed wheel which is formed with weight compensation. According to the invention, the tool head (11) is formed with integrated advance motors (17) assigned to the slides (14A, 14B; 15A, 15B; 16A, 16B), and each slide is assigned a measuring device (24).

Abstract: The invention relates to a machine for machining the ends of pipes which, for control purposes, is assigned at least one computer unit and in the case of which the tools (13) are arranged displaceably such that they can engage radially in relation to the pipe in a tool head (11) which is driven by a motor (4) via a main spindle (10) guided through a headstock (6), the tool head rotating coaxially about the fixedly clamped pipe end, wherein the tools are arranged in tool holders in the form of slides (14A, 14B; 15A, 15B; 16A, 16B) and adjacent slides together mesh with a toothed wheel which is formed with weight compensation. According to the invention, the tool head (11) is formed with integrated advance motors (17) assigned to the slides (14A, 14B; 15A, 15B; 16A, 16B), and each slide is assigned a measuring device (24).

Abstract: The invention relates to a chuck (1) for a machine tool for machining a tubular workpiece (26) which rotates about a rotational axis that coincides with the centre of the chuck, comprising at least two chucking slides (7a, b, c) that are designed to be positionable radially with respect to the rotational axis in order to release and chuck the workpiece, are arranged on the end side of and in a manner distributed uniformly around the circumference of a chuck head plate, and bear chucking jaws (8a, b, c). Such a chuck is intended to be created with improved operating characteristics and extension to all chucking functions.

Abstract: The invention relates to a chuck (1) for a machine tool for machining a tubular workpiece which rotates about a rotational axis (4) that coincides with the centre of the chuck, comprising at least two chucking slides (7a, b, c) that are designed to be positionable radially with respect to the rotational axis (4) in order to release and chuck the workpiece, are arranged on the end side of and in a manner distributed uniformly around the circumference of a chuck head plate (2), and bear chucking jaws (8a, b, c).

Abstract: An apparatus for collecting and bundling long rolling stock includes a collecting station for a layer of rolling stock lying side-by-side, a receiving device for the layer of rolling stock, a bundle forming station arranged at a side of the collecting station, and an arrangement for transporting the layer of rolling stock into a depositing position in the bundle forming station. The transporting arrangement includes two support arches that stand at a distance from another and span at least a collecting station and a bundle forming station. Each of the support arches defines a travel path having a horizontal segment that is guided into a vertical segment in a region of the bundle forming station. A carriage is arranged at each support arch so that both carriages are synchronously movable on the travel paths.