Research On Automatic Assembly Technology Of Flexible Fixture

With the development of Flexible Manufacturing technology in the ever-changing business environment, raditional and simplex fixture structure is becoming complexand polytropical in the ways of fixture design, which reduce the cost of clamping production and time in production arrangements greatly. the efficiency is lower in the process of Flexible fixture assembly.Under this background, studying on computer aided Automatic assembly has an important theoretical meaning and practical value and it has been one of the key techniques of CIMS. Aimed at the development and problems existed in now computer aided fixture design, this research provides its support for focusing upon how to improveperformance of Flexible fixture Automatic assembly in Unigraphics.Firstly, after a deeply and carefully analyzing and investigating about the development,research of CAFD at home and abroad and exploration about the significance ofthe components of computer aided fixture design, how to develop a powerful component librarySecondly, The establishment of the assembly relationship, introducing themethod of matching of feature recognition and feature, the paper discusses in detailhow to establish the characteristics of the relationship between fixture standard partsinto a knowledge base, stored in a component library based on the database, in theassembly process to feature guide element assembly.Finally, complementary and deficiency, UNIGRAPHICS NX assembly,developed a suitable for the situation of enterprises at home and abroad practicalautomatic assembly system, the flexible fixture assembly more automatic, efficient.And study the content needs to be improved in the next step.