Upright post of horizontal processing center

The utility model relates to an upright post of a horizontal processing center which consists of a crossbeam, a framework, road tracks and a bed frame. The framework and two road tracks are fixed on the bed frame; the road tracks are stuck inside the framework; and the crossbeam is fixed on the framework. The upright post of the horizontal processing center is of a framework type; a spindle box is arranged in the road tracks in the middle of the upright post, which is symmetrically strained, and has small deformation; moreover, the processing precision of the center is relatively stable.