Front longitudinal beam rear combination structure of automobile

The invention discloses an automobile front longitudinal beam rear combination structure which is an aluminum alloy integrated piece, and the aluminum alloy integrated piece is provided with a front longitudinal beam connecting joint, a front baffle middle cross beam connecting joint, a front baffle middle cross beam connecting joint, a threshold beam connecting structure and an A column lower portion connecting structure. And a reinforcing rib structure is arranged on the aluminum alloy integrated piece. The automobile front longitudinal beam rear assembly is reasonable in structural design, integrated in structure, combined in multiple parts and few in parts, the structure and the thickness of the aluminum alloy die casting can be freely designed according to needs, weight reduction, corrosion prevention and performance improvement are better facilitated, collision safety and rigidity performance are effectively improved, and production cost and management cost are reduced; connection is simple and convenie