Research on Rapid Response Schematic Design of Flexible Transfer Line CAPP-Based

摘要

The Flexible Transfer Line (FTL), which consists of modular NC machining tools of high quality andrncost saving, is discussed to meet with the various demands of customers. Client-oriented FTL rapid responserndesign is presented based on CAPP in this paper. In order to achieve this purpose, the integrated architecture isrndeveloped of FTL design CAPP-based. The global-domain product model is put forward with data representation.rnAfter the manufacturing feature is analyzed and decomposed for machining operations, the feature-based partrnunified data model object-oriented is built. The knowledge-based CAPP system data model is established. Thernprocess planning unit model is formed by work element (WE), which is tool-cell based function abstractionrnmethod, and has unified layers with respect to designing and manufacturing. With WEs through dynamic responsernand simultaneous structure in process planning, the principle solution for CAPP function system can bernimplemented. The mapping from process domain to module domain, in which local working procedure ofrnmodular NC machine tools, is built, and make decision of designs in overall FTL. An integrated design ofrnCAD/CAPP/FTL with box-type parts is realized. The example shows that the rapid response design inrnbidding-based FTL scheme design based on CAPP is validity and feasibility.