Patent ID: 8964023
Filing Date: 2015-02-24
Classification: G01B

Abstract:
1. A device for measuring form attributes, position attributes or dimension attributes of rotatable machine elements, the device comprising: a mechanically stable machine bed with a linear guide disposed along the machine bed and a linear guide system arranged in parallel to the linear guide; a workpiece holder for receiving a machine element rotatable around a rotational axis of the machine element, wherein the workpiece holder comprises at least one clamping means which is received in the linear guide and around which the machine element is rotatable around the rotational axis, and an optical measuring unit comprising an illumination module and a camera module which is movably arranged at a linear guide system for capturing two-dimensional shadow images of the machine element at different positions along the rotational axis, wherein the camera module and the illumination module being located oppositely to each other and being together moveable relatively to the machine element rotatably arranged therebetween, the optical measuring unit comprising an additional mechanical measuring unit having a tactile measuring probe for measuring defined surfaces of the machine element in axial direction, wherein the mechanical measuring unit is fixed to the optical measuring unit and has a swiveling device for swiveling the tactile measuring probe in an orthogonal plane relative to the rotational axis of the machine element.