Numerical Control Machining Strategy of Multi-axis Orthogonal High Precision Rotating Frame

There is a problem of difficult clamping, easy deformation, and out-of-control axiality for multi-axis orthogonal high-precision rotary frames, the accuracy and machining difficulties of structural parts were analyzed. The spherical and spatial rounded corners were completed by designing clamping methods and special flexible combination tooling. The machining method and technological parameters of 5-axis surface were determined by analyzing the machining method and tool path. Based on UG software, the surface patch and the cavity groove structure of T-cutter are designed. The auxiliary blank model was established in the roughing and finishing stage, the cutting parameters, tool selection and cutting path were optimized, and the tool track simulation was carried out after CAM numerical control program was generated to avoid tool collision or interference in the process of machining, and the efficient batch machining of curved thin-walled parts was realized by using five-axis numerical control, ensured the concentricity. Two heat treatments are carried out during the processing, and the dimensional stability of the product is good.