The invention relates to a vertical electric
numerical control knife rest, belonging to the field of
numerical control knife rest. The
numerical control knife rest is provided with a power delivery mechanism, a preliminarily locating mechanism, a precisely locating mechanism and a
locking mechanism; a square knife table and a base are arranged up and down; screw sets are arranged in the centers of the base and the square knife table; the screw sets match with the base by a steel-backed bearing; a driving disc is connected with the side of one end of the screw set; a connecting disc is arranged outside the driving disc; a worm gear and a
worm drive pair are installed at the side of the other end of the screw set; a movable gear disc is arranged between the inner side of the square knife table and the outer side of the screw set; the movable gear disc matches with the screw sets by a
helical structure; and the movable gear disc is connected with the square knife table through the connecting disc. The vertical electric numerical control knife rest is suitable for economical numerical control lathe; and the vertical electric numerical control knife rest is rotated by using a
torque motor, pre-located by a preliminarily locating pin, precisely located by a triple gear and locked in a lifting manner by rectangular threads. The knife rest solves the problem that the knife rest in theprior art has poor rigidity, poor waterproof property, low power
delivery efficiency, high preliminarily locating
fault rate, complex structure and poor
processing and assembling process, and the like.