Method of combining single-column vertical boring machines

The invention relates to a compound method of single-post vertical turning floor boring-milling machine. In the method a group of guide rail, a boring spindle box, a milling spindle box and several bottom rails are added on the prior post of single-post movable vertical turning. The single-post movable vertical turning comprises post, beam, slipway, lathe bed, rotary table and base. Compared with prior technology, the invention is provided with simple structure, reasonable design, saved equipment invests, and decreased occupied ground for production so on.