APPARATUS FOR ENABLING ONE WORKER TO CORRECT LARGE MICROMETER ACCURATELY AND PROMPTLY AND PREVENTING MEASUREMENT ERROR OF ROLLING ROLLS THROUGH LARGE MICROMETER BY ACCURATE CORRECTION

摘要

PURPOSE: To provide an apparatus for correcting large micrometer, wherein the apparatus not only improves correction accuracy by preventing generation of cosine error during correction operation of the large micrometer, but also improves accuracy and productivity of micrometer correction and rolling roll measurement by stably correcting the large micrometer promptly and accurately and minimizing working manpower. CONSTITUTION: The apparatus for correcting large micrometer comprises a moving base(10) on an upper part of which a rail(12) is installed; a micrometer clamping means(30) installed at the central side of the moving base to clamp the large micrometer(100) in a way that vertical height of the micrometer clamping means is adjustable; a pair of micrometer supporting means(50) which are moved along the rail of the moving base, and on an upper part of which the micrometer is rested; a pair of end bar supporting means(70) which are installed at the inner side of the micrometer supporting means such that the end bar supporting means are moved along the rail, and on which end bars(120a,120b) are rested such that the end bars are movable back and forth and up and down; and end bar measuring means installed at the micrometer supporting means respectively.