Machining center

The utility model provides a machining center. The device comprises a heavy base, a stand column, a saddle, a workbench and a spindle box. The stand column is fixed to the heavy base. A Z-axis drivingmechanism is arranged on the stand column; the spindle box is arranged on the stand column in a sliding mode and connected with the Z-axis driving mechanism. An X-axis driving mechanism is arranged on the heavy base; the saddle is arranged on the heavy base in a sliding manner and is connected with the X-axis driving mechanism; a Y-axis driving mechanism is arranged on the saddle; the workbench is arranged on the saddle in a sliding manner and is connected with the Y-axis driving mechanism; wherein supporting legs are arranged on the two sides of the stand column, the stand column is providedwith a plurality of layers of stand column reinforcing ribs with irregular holes, a reinforcing plate is arranged between every two layers of stand column reinforcing ribs, and first material reducing holes are formed in the