Machining equipment special for counter weight of engineering truck

The invention belongs to numerical control machining equipment, and provides special machining equipment for a counter weight of an engineering van, which comprises a sliding table, a working table, a sliding saddle, a sliding seat and a main shaft dragging plate, the sliding saddle slides along an x axis, the sliding seat slides along a z axis, the main shaft dragging plate slides along a y axis, the middle part of the main shaft dragging plate is connected with a milling power head, and two sides of the main shaft dragging plate are respectively connected with two servo drilling and tapping power heads. The sliding connection among the sliding table, the sliding saddle and the sliding seat enables the main shaft dragging plate to flexibly move in the x-axis direction, the y-axis direction and the z-axis direction, the machining range of the milling power head and the servo drilling and tapping power head can be ensured, sliding among the sliding table, the sliding saddle and the sliding seat is completed by