Cross beam structure and machine tool having same

The invention provides a cross beam structure and a machine tool having same. The cross beam structure comprises a first support portion and a second support portion, wherein the first support portionextends in a first preset direction, and is provided with a first support end and a second support end oppositely arranged; the second support portion is disposed on the first support portion, and extends in a second preset direction; the second preset direction and the first preset direction are arranged by a preset angle; the second support portion is provided with a connection end and a thirdsupport end oppositely arranged; the connection end is connected to the first support portion; and the third support end is positioned between the first support end and the second support end to implement supporting by means of the first support end, the second support end and the third support end, so that the technical problem of deformation caused by insufficient rigidity of a cross beam structure in the prior art is so