Convergence machining apparatus based on turning

A convergence machining apparatus based on turning in which a rotation center of a work piece to a headstock and a footstock and a slide surface of first and second beds mounted with a reciprocal carriage, the headstock, and the footstock are positioned on the same virtual line when viewed from a direction parallel with a rotation axis of the work piece,

• thereby preventing an offset error in processing due to a relative displacement between the work piece and a tool installed at the reciprocal carriage,
• wherein the reciprocal carriage is supported by the first and second beds to be positioned outside a width region of the headstock and the footstock and includes first and second main reciprocal carriages.