| The dissertation involves the research on FESTO, the flexible manufacturing system. Based on the primary equipment structure and operational principle, it puts forward the working scenario on which installation and debugging are completed. Targeting at real condition, the essay completes both the overall and unit control programming for FESTO. The main contents of the research are as follows:1. Installation and control plan for FESTO. Featuring modularized design, every working unit has a relatively independent controller, including S7-300PLC, LOGO and SPC200. Functions like machining, logistics, sorting and assembly are realized through these controllers.2. The air servo tiered warehouse facility is designed as both the roughcast warehouse and the transfer station for FESTO. In this wav the "one warehouse two usages" function comes true. The working unit is controlled by SPC200.Its high efficiency and stability is ensured by modularized programming.3. Complete design for manipulator workflow. On one hand, the manipulator is in charge of portage and clamping; on the other hand, it controls the opening and closing of the gateway for the NC machine tools so as to reduce CPU working program. During programming, one motion refers to one subprogram, thus the efficiency and reliability is ensured.4. S7-300PLC is used as CPU controller for the entire FESTO. The main task for the CPU is to collect signals of every working unit, and at the same time send out various directives accordingly. The objectives include the workflow, the position of the servo electric axis, the switch of the electric axis, the limiting potential of the electric axis, system shutoff and the manipulator clutch.Through the task-oriented research, the dissertation provides practical controlling scenario and programming methods. The application provides a strong evidence for the fact that it is conducive for the students to learn mechanics, pneumatics, PLC control and sensor technology. Moreover, it provides a promising platform for practical training in terms of students’ occupational quality and innovative ability. |
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