Workpiece support device, machine tool and method for measuring in z of this machine tool

Abstract

This invention relates to a workpiece support device (10) forming a workpiece chuck for a mechanical turning tool equipped with a workpiece spindle defining a longitudinal direction extending along the spindle axis (Z-Z'). The workpiece support device (10) is intended to rotate about the spindle axis. The workpiece support device includes: The chuck body (110) includes a first end and a second end along the main axis (Z-Z'), the first end being capable of receiving a clamping device (120) and the second end being capable of receiving a fastening portion (130) intended for mounting a workpiece support device (10) on the workpiece spindle of the machine. The chuck body (110) has a straight through hole (113) orthogonal to the main axis (Z-Z'), defining the central axis (Y1-Y1') of the through hole (113), and a material positioning element (140) disposed in the through hole (113) such that the material positioning element is visible from at least one of the two ends of the through hole (113). The invention relates to a workpiece support device (10) forming a workpiece chuck for a mechanical turning machine tool equipped with a workpiece spindle, defining a longitudinal direction extending along a main axis (Z-Z') around which the workpiece support device (10) is intended to rotate, comprising: - a chuck body (110) comprising, along the main axis (Z-Z'), a first end capable of receiving a clamping device (120) and a second end capable of receiving a fastening portion (130) intended for mounting the workpiece support device (10) on the workpiece spindle of the machine tool, said chuck body (110) having a straight through hole (113) orthogonal to said main axis (Z-Z'), defining a central axis (Y1-Y1') of the through hole (113), and - a material locating element (140) disposed in the through hole (113) so that it is visible from at least one of the two ends of said through hole (113).

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