The invention discloses a modeling method for a swing angle milling head complete
machine based on block modeling and experimental parameter identification, and belongs to the technical field of modeling. According to the method, module division is determined according to the structure and junction surface distribution of a swing head, non-consolidation connection structures such as junction surfaces and bearings are used as boundaries among modules, an equivalent
kinetic model is established, and a kinetic equation is solved. Then, a
machine tool is split according to the divided modules, excitation experiments are conducted on the modules respectively,
frequency response functions are collected, finite element models of corresponding modules are established, and
joint surface parameterscapable of minimizing errors between theoretical values and measured values of the
frequency response functions are searched through an optimization
algorithm; The searched
joint surface parameters are added to the finite
element model of each module. The finite element models of all the modules are integrated into a model of the swing head complete
machine, solving a
tail end
frequency response function ,the
tail end frequency response function is compared with an actually measured frequency response function, and the reliability of the model and the feasibility of the modeling method.