关键词: 闭环制造, 在机测量, STEP-NC标准, 先进集成数学系统, 宏程序, 信息集成

Abstract: Aiming at the requirement of Closed-Loop Manufacturing (CLM) on  measurement operation timeliness and measurement result integration,a STEP-NC compatible on-machine measurement system was proposed.The information model of the system was presented by consulting the current data model standards supporting closed-loop manufacturing,based on which a hierarchical process planning approach was proposed.Object oriented macro programs were utilized to post process the planned inspection information.Measurement programs execution and inspection result feedback were concurrently handled through multithread ways.Inspection items such as hole diameter and measurement points were uniformly and uniquely identified to ensure the accurate and reliable associations of measurement results with the designed model.Based on CATIA,a STEP-NC compatible on-machine measurement prototype system was developed,and the validity as well as the practicality of the proposed on machine measurement system were demonstrated with an aeronautic test part.

Key words: closed-loop manufacturing, on-machine measurement, STEP-NC standard, advanced integration mathematical system, macro programs, information integration