Simulation and Experimental Analysis on Dynamic Characteristics of the Roll Grinde

The modal test and dynamic characteristic analysis of high accuracy roll grinder were carried out. By establishing the finite element model, dynamic characteristics of joints on sliding guides, ball screws, bearings and anchor bolts were studied. The spring-damper element, which simplified simulation of joint characteristics, was added to the model in ANSYS software. Simulation and experimental results indicate that the vibration of head frame, grinding carriage and center rack influences machining accuracy most; influences of the workpiece must be considered when analyzing dynamic characteristic; the weighted spring-damper element method is useful to build joint model; the proposed process is feasible for evaluating the roll grinder’s dynamic characteristic.