METHOD AND APPARATUS FOR MEASURING SHAPE DEVIATIONS OF MECHANICAL PARTS

摘要

A method for determination of dimension and shape deviations of mechanical components (1) in process of forming and machining, especially the mechanical components (1) warmed-up to temperature over 450°C, consists in that the distances between selected reference point and measuring points selected on that part of the mechanical component (1) area near the reference point are measured, after which approximation of the surface fitted with the measured points is performed and then the dimension and shape deviations of the mechanical component (1) are determined by comparison of this surface with the surface of the mechanical component (1) model. An equipment for performing the method includes a laser distance meter (2), the sensor (3) of which is provided with a pre-filter (4) for filtering off parasitic emission of the mechanical component (1) radiation in the area nearing the wavelength of the laser used. The laser distance meter (2) is either arranged on a carriage (6) of a sensor (7) of the laser distance meter (2) carriage position and is provided with a sensor (8) of the laser distance meter (2) rotation in the plane perpendicular to the laser distance meter (2) carriage (6) movement direction. The laser distance meter (2) is either laser radar or laser triangulation detector or laser interferometer.