Eyeglass lens grinding apparatus

摘要

An eyeglass lens grinding apparatus for grinding a periphery of a lens to be processed. The apparatus includes: a lens rotation shaft which holds and rotates the lens; a lens rotating device having a lens rotating motor and a first transmission member which transmits a rotational torque of the lens rotating motor to the lens rotation shaft; an abrasive wheel rotation shaft which rotates a lens grinding abrasive wheel; and an abrasive wheel rotating device having an abrasive wheel rotating motor and a second transmission member which transmits a rotational torque of the abrasive wheel rotating motor to the abrasive wheel rotation shaft. A moving device causes a relative movement between the lens rotation shaft and the abrasive wheel rotation shaft to vary an axis-to-axis distance between an rotation axis of the lens rotation shaft and an rotation axis of the abrasive wheel rotation shaft, thereby brining the lens into pressure contact with the abrasive wheel for processing. A detector detects a state of rotation of the lens or the abrasive wheel. A controller judges whether the lens has been completely processed, based on a result of detection by the detector.