Teaching Flexible Manufacturing Systems Yg-fms Research And Development

Flexible Manufacturing System (FMS) is a modern manufacturing technology, which includes computer technologies, numerical control technologies , network communication technologies, modern production management technologies. From nineteen sixties, to satisfy products' ceaseless renewal and adapt the demands for multiple-kind, packaged production, FMS has advanced rapidly and become the major manufacturing equipment in the west industrial countries. It plays an important role in rapidly responding to the requirement of the market and accelerating the development of mechanical manufacturing.In this paper, the design and development of YG-FMS, a teaching system, are researched and discussed, which involve system architecture , theory modeling , real-time communication , scheduling control. The key techniques about designing system , storing and conveying material, establishing project plans , monitoring production process are resolved successfully. The main study content of the article is as follows:1. Establishing a system model by using Petri Net. FMS is a typical Discrete Event Dynamic System(DEDS). whose characteristics include various kinds of system frameworks, event triggering frequently , multiple control objects, a large amount of information, a complex system structure. Petri Net can conveniently describe the DEDS characteristics of concurrence , conflict , synchronization and is chosen as the tool of modeling.2. Realizing system real-time communication by using Profibus. Profibus is chosen to solve the communication problem between cell controller and equipment. The thesis describes the structure and technologies and methods of system real-time communication in detail.3. Developing cell controller. To consider the functions of cell controller, projectplans' establishment, production scheduling , system monitoring are designed and developed.4. Validating system functions by practical machining a part.Finally, the problems about expanding the system are presented. The methods and techniques reported in this thesis could be taken as a useful reference for manufacturing FMSs' design:...