Hierarchical fuzzy control method for numerical control milling process

The invention relates to a self-adjusting control method that uses step fuzzy and adopts gathers main axis power. It could adjust the feed ratio and main axis rotating speed ratio on line. On the serving links of on CNC-PLC and setting milling usage of NC program to realize rotating speed of main axis and adjusting online, the target of constraining main axis power of intelligent step control formilling process would be realized. It could effectively improve processing efficient and processing quality.