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Flexible Manufacturing Systems

Flexible Manufacturing Systems. Flexible Manufacturing Systems. Flexible Manufacturing Systems (FMS) is an automated workshop. Automation means automated processing, automated transportation , automated storing. Decision Making in FMS. Decision means what, when, how, with what

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Flexible Manufacturing Systems

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  1. Flexible Manufacturing Systems

  2. Flexible Manufacturing Systems • Flexible Manufacturing Systems (FMS) is an automated workshop. • Automation means • automated processing, • automated transportation, • automated storing.

  3. Decision Making in FMS • Decision means • what, • when, • how, • with what to process/transport/store. • Decision making is still a research topic in the forefront.

  4. History of FMS • First FMS in 1960’s in England. • System 24: ever working workshop. • Huge majority of FMSs is working in Japan.

  5. Technical Development of Automated Processing 1. • NC: Numeric Control • punch tape + dedicated input device • origin: textile industry used circuits of punch cards.

  6. Technical Development of Automated Processing 2. • CNC: Computer Numeric Control • A mainframe computer directed the production manchines used in the production. • What is mainframe computer? • World record: one computer controled more than 200 machines.

  7. Technical Development of Automated Processing 3. • DNC: Direct Numeric Control. The machine has its own PC. • Since 1980’s.

  8. DNC Machine

  9. Machine Related Resources • The capacity of the machine. Measured in time. • The capacity of the tool magazine. Measured in number of places.

  10. Buffer capacity

  11. Transportation System • AGV: Automated Guided Vehicle

  12. AGV Transports a Palette

  13. Path is Coded into the Floor

  14. Industrial Robot Hand Arm

  15. The Moves of an Industrial Robot • Arm: • forwards/backwards • up and down • rotation around a vertical axis • Hand: • up and down • rotation around a vertical axis • rotation around a horizontal axis

  16. Robot as Transportation Device

  17. Robot as Production Device • Painter robot • Welding robot • They are more expensive • Assembly robot

  18. Welding Robot

  19. Assembly Robot 1.

  20. Assembly Robot 2: The Case of Printed Circuit Board (PCB)

  21. Conveyor

  22. Conveyor on Assembly Line

  23. Traditional Conveyor

  24. Automated Storing System Robot of the storing system Positions

  25. Advanteges of FMS • High precision of NC machines. • Flexible change among technological alternatives. • Low level of workforce. • Small batches. • High productivity. • Reduced set-up times.

  26. Scientific Problems • Avoiding deadlock • Optimal schedule of production, transportation and storing simultanuously. • Exact models are too large. • Rule of thumb ↔ Heuristics

  27. A Modern Layout

  28. Sources of Pictures and Videos • http://www.cncmachinesinmotion.com/Images/3VK_cnc_machine.jpg • http://www.biesse.it/dati/files/246_510_intermac_stone_master_30_tool_change.jpg • http://www.fke.utm.my/lab/robotics/image/fmsp10.JPG • http://www.robot-welding.com/images/robotwelding.jpg • http://www.aw-systems.com/images/gsa_products/conveyor.jpg • http://www.imps4ever.info/linwood/factory/main_assembly_conveyor.jpg • http://www.pacline.com/images/conveyor_for_assembly_of_pl.jpg

  29. Thank you for your attention

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