Nonlinear error compensation based on the optimization of swing cutter trajectory for five-axis machining

In order to solve the problem of deviation between actual and theoretical machining paths due presence rotation axis in five-axis machining, an interpolation algorithm based on optimization swing cutter trajectory method corresponding nonlinear error compensation are proposed. Taking A-C dual rotary table machine tool as example, forward reverse kinematic model is established according chain tool. Based linear axis, generation mechanism analyzed, modeling methods center point, vector proposed respectively, parameterized formed. The formula for obtained from two-dimensional point trajectory. According trajectory, synchronous proposed, established. First, pre-interpolation performed given location data obtain a each interpolated segment. Then, magnitude calculated parameters points during formal interpolation, compensated where exceeds $$[\varepsilon ]$$ . VERICUT simulation, maximum was reduced 50 5 μm by this paper method. surface roughness free-form 10.5 before 1.8 μm. experimental results show that can effectively reduce impact errors processing, high practical value improving accuracy position quality complex machining.