1. Increase the mechanical rigidity and reduce the inertia of the system, reduce the response time of the mechanical transmission part, such as replacing the V-belt with a direct screw drive or replacing the V-belt with a gear box.
2, reduce the response speed of the servo system, reduce the control bandwidth of the servo system, such as reducing the gain parameter value of the servo system.
This situation is only noise, only one of the reasons for instability, not necessarily the servo press servo motor quality is not good, for different reasons, there will be different solutions, such as the noise caused by mechanical resonance, in the servo can take resonance suppression, low-pass filtering and other methods, in short, the noise and instability of the reasons, basically will not be caused by the servo motor itself!