The Key Technology of Error Compensation for CNC Equipment
The virtual factory model of manufacturing industry can reduce cost and increase efficiency,optimize service quality,so it is good choice to cope with the fierce global competition.In order to continuously improve product quality in the mode,the accuracy enhancement of CNC equipment related to the production process was mainly focused on,which were the key techniques of error compensation,including error source analysis,error modeling,error measurement and error data processing.Therefore,the five-axis machine tool was taken as the representative of CNC equipment,and 45 geometric errors which affected its accuracy were found out;through error modeling,the relationship between these 45 errors and the total system error of the five-axis machine tool was established;then,according to the error characteristics of the five-axis machine tool,the measuring system was constructed and its effectiveness was verified;finally,data handling was carried out for the measurement data,which provided non-measurement node data and greatly reduced the amount of data information,so it laid a data foundation for rapid and effective error compensation.
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