The Outer Surface Shoe Centerless Grinding into Circle Analysis and Simulation
The generation mechanism of the roundness error of shoe centerless grinding of bearing rings is investigated for the high-precision prediction and analysis of the roundness formation process of shoe cen-terless grinding and the machining performance of the grinding machine.The analytical equations containing geometrical,static and dynamic errors are established with geometrical conditions,machining parameters and machine rigidity as parameters,and the regeneration process of the surface roundness error of bearing rings can be numerically simulated in the time domain by iterating the surface roundness error of bearing rings with the roundness error equations,thus providing a simulation model for predicting the changes of the surface roundness error of bearing rings,and providing a good model for effectively predicting the grinding performance and the roundness process of bearing rings.The simulation model provides a reliable analytical tool to predict the grinding performance and the rounding process of bearing rings.By synchronizing the simulation and experimental parameters,the relative error between the simulation results and experimental results is 8.04%.The results show that the established comprehensive model can complete the analysis of the rounding process and predict the final contour of the workpiece.
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