Model and Parameter Identification of Hohlschaftkegel Shrink Toolholder-Tool Joint Part

The Hohlschaftkegel(HSK)shrink toolholder-tool interface was simplified as a spring-damp model.The finite element model of the interface was built.According to the elastic theory and viscous damp theory,the stiffness and damp parameters in different locations of the interface were identified.The rationality of parameters was verified using the multi-points coupling receptance method.Besides,the stiffness and damp parameters at the end of the interface were identified using the finite difference method and experiment,and the accuracy of parameters was confirmed using the coupling receptance theory.The idea that stiffness parameters with FEA and damp parameters with FDM were regarded as the identification parameters of shrink toolholder-tool interface was proposed.Then,the beam model of HSK shrink toolholder-tool assembly was made and the modal of toolholder-tool assembly was analyzed.Comparsion of the theoretical modal and the experimental one verifies the rationality of the proposed joint part parameters.