This invention discloses an optimized cutter head structure and tool
assembly for an ultra-precision flying cutter, addressing the problems of low
natural frequency and
resonance-induced insufficient
machining accuracy in existing cutter heads. The optimized cutter head structure includes a cutter head body, which is a centrally
symmetric structure reconstructed from the irregular
spoke structure of the original cutter head through
topological optimization. The cutter head body achieves its
natural frequency higher than the
machining excitation frequency range through a combination of local weight reduction and structural stiffness enhancement. This invention effectively increases the
natural frequency of the cutter head, reduces tool tip vibration displacement and warping, avoids the
impact of
resonance on
machining, significantly improves the surface accuracy of ultra-precision flying cutter machining, and is compatible with existing
machine tools for easy replacement.