Research on following motion rule of guide roller in cold rolling groove ball ring

Based on the actual working condition of a vertical cold ring-rolling mill rolling a groove ball ring, a mathematical model for the following guide roller motion is established. The variation of growth of the ring outer radius is analyzed and the guide roller motion is investigated. A system for guide roller motion design is obtained, on which a Matlab program is coded to get the required system parameters. Accurately controlling the guide roller motion may improve the precision of cold ring-rolling components. The model can be also used to guide the design of cold ring-rolling mill.