Vertical drilling machine is a metal cutting machine tool with a vertically arranged spindle and a fixed center position. It is divided into two types: square column vertical drilling machines and round column vertical drilling machines. The spindle sleeve achieves axial feed through rotation, and the worktable can be adjusted in height along the guide rails of the column. It is equipped with a dual-mode feed system of manual and micro-motion, as well as super audio frequency quenched guide rails. It is commonly used for hole processing of medium and small-sized workpieces in mechanical manufacturing and repair factories, and supports operations such as drilling, counterboring, reaming, and tapping.