Radius measurement type sizing control method and radius measurement type sizing device

摘要

PROBLEM TO BE SOLVED: To carry out sizing machining by using a radius measurement type sizing device and without stopping cut and feed.;SOLUTION: In this radius measurement type sizing machining wherein a cylindrical part of a workpiece is circularly machined, the radius of a measurement portion in the single phase of the circumference of the rotating cylindrical part during the machining is measured by a measuring head. An added-up value of a measured radius value and a calculated radius value is worked out by a calculation means. The measured radius value is measured by the measuring head during the machining and the calculated radius value is measured in the phase positioned at a angle of 180° circumferentially from the measurement portion. The added-up value is made to serve as a measured diameter value at the cylindrical part for the sizing machining to be carried out by a control means. The calculation means works out a tool cutting depth per half-turn of the cylindrical part by multiplying the tool cutting depth by the proportion of half-turn time of the cylindrical part to cutting time on the basis of the tool cutting depth, the cutting time, and the half-turn time of the cylindrical part in a fixed working process section set as a parameter in advance. Additionally, the calculation means works out the calculated radius value by adding the measured value to the tool cutting depth per half-turn of the cylindrical part.;COPYRIGHT: (C)2001,JPO