Auxiliary frame for front independent suspension of commercial vehicle

The utility model discloses an auxiliary frame for a front independent suspension of a commercial vehicle, which comprises a longitudinal beam assembly, a reinforcing frame assembly and side cross beam assemblies which are respectively and oppositely arranged, a middle cross beam assembly is arranged between the two side cross beam assemblies, and the auxiliary frame further comprises a bottom frame reinforcing assembly which is detachably connected to the bottom surfaces of the two side cross beam assemblies. A plate spring fixing assembly is fixedly connected to the inner end face of the bottom frame reinforcing assembly, a plate spring supporting plate assembly is fixedly connected to the outer end face of the bottom frame reinforcing assembly, and lightening holes are formed in the assemblies respectively. The auxiliary frame is divided into a plurality of assemblies to be machined, each assembly is formed by bending, cutting and welding the metal plates, customizing through a traditional die is not neede