Design of Notch Filter Applied in Miniaturized NC Micro-milling Machine Tool

Abstract

The mechanical resonance of the micro-milling machine tool directly influences machining precision of workpieces. This article introduced the design of notch filter applied in micro-milling servo control. Based on a novel miniaturized three-axis NC micro-milling machine tool, the notch filter was designed and used successfully. The servo test and micro-milling experiment results indicated that the use of notch filter can reduce the influence of mechanical resonance on the machining precision effectively.