关键词: 批量工件, 加工进度, 自动采集, 多源信息, 数控系统

Abstract: Due to neglected some information such as rework workpieces and scraped workpieces,the existing methods for NC machining progress information during batch production were difficult to obtain the accurate results.To solve this problem,an automatic collection method for NC machining progress information during batch production was proposed based on multi-sources information integration and analysis of machining progress constitution.By using multi-sources information such as start or stop signal of numerical control system,real-time power information and quality data,the state vector of workpiece was obtained based on integration of these three parts information.The variety of machining progress information which included the number of completed workpieces,the number of rework workpieces,the number of scraped workpieces and the number of qualified workpieces were achieved with the method of automatic collection.The case study on NC gear hobbing in a certain gear production workshop showed that the method was successfully applied to collect multiple progress information,and the proposed method was proved to be applied in practical production process.

Key words: batch workpiece, machining progress, automatic collection, multi-sources information, numerical control system