Integrated welding lathe bed for moving column type high-speed machining center

The integrated welding lathe bed for the moving column type high-speed machining center comprises an integrated lathe bed body formed by welding a steel plate with the thickness of 10-20 mm, the lathe bed body comprises a peripheral rib plate and a plurality of supporting rib plates, the peripheral rib plate comprises a bottom plate, a side plate and a top plate, the bottom plate, the side plate and the top plate are tailor-welded to form a box body structure, and the supporting rib plates are arranged on the bottom plate. The multiple supporting rib plates are transversely and longitudinally welded to the inner sides of the peripheral rib plates in a staggered mode, the top plate is supported by the multiple supporting rib plates, a first installation platform, a plurality of installation bosses and a second installation platform are sequentially welded to the top plate, a chip cleaner base is arranged at the bottom of the lathe bed body, and the top plate comprises two large-slope flat plates. The lower end