GRINDING WHEEL CORRECTION DEVICE

摘要

PURPOSE:To correct the grinding face of grinding wheel highly accurately without casing damage by detecting the grinding face position of grinding wheel through an air-micrometer and controlling the relative cutting of a correction tool against the grinding wheel. CONSTITUTION:The detection nozzle 41 of an air-micrometer is indexed at the position where a traverse table is moved by the distance L1 in Y-direction to correspond with a grinding wheel G. The distance (a) between the tip of a correction tool 26 and the position for outputting the nozzle 41, the advance (b) of the grinding wheel G and the cutting (d) are set previously by a data input system. The intermediate section of an interval where the output V from a pressure converter is proportional to the gap SG between the grinding wheel G and the nozzle 41 is set as 0 output of the converter to be set to 0 output upon advance of the grinding wheel G by the distance (b). Abrasion (e) of the grinding wheel G detected through variation of the output V is added to operate the retraction S of the grinding wheel while the tool 26 is moved by the distance L2 and corrected.