Method for scanning the contours of openings in a spectacles frame and use of a device for scanning the contours of openings in a spectacles frame for the peripheral grinding of spectacles lenses

摘要

method for scanning the contour of brillenfassungsu00f6ffnungen (23) for the umfangsschleifen of lenses and the use of a abtastvorrichtung with a einspannvorrichtung (8.15) for the brillenfassung (14), at least one of the groove (27) of a brillenfassungsu00f6ffnung (23) fitting nrelative to the brillenfassungsu00f6ffnung (23) rotating relatively to brillenfassungsu00f6ffnung (23) radial and perpendicular to it in the direction of the z axis adjustable taststift (24), a radialpositionssensoreinheit (36.37) to capture the radialbewegung of taststifts (24) relative to the brillenfassungs opening (23), a z - achsenpositionssensoreinheit (30,31) to hold the position of the taststifts (24) perpendicular to the brillenfassungsebene, a winkelpositionssensoreinheit (12) to hold the winkelposition at any radial - and z - achsenposition and an evaluation and control unit (33), the mixed output signals of the radialpositionssensorein security (36.37), the z - achsenpositionssensoreinheit (30,31), and the winkelpositionssensoreinheit (12) to the contour of the brillenfassungsu00f6ffnung (23) calculateswith the rotation of the taststifts (24) relative to the brillenfassungsu00f6ffnung (23) as a function of the radialgeschwindigkeit or radialbeschleunigung and / or the speed or acceleration in the direction of the z axis of the taststifts (24) by the evaluation and control unit (33) it is regulatedthe radialgeschwindigkeit or radialbeschleunigung and / or the speed or acceleration in the direction of the z axis and within predetermined limits.