contemporary issues of industrial engineering
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Contemporary Issues of Industrial Engineering. Flexible Manufacturing Systems By Béla Vizvári April 20, 2011. Flexible Manufacturing Systems. Flexible Manufacturing Systems (FMS) is an automated workshop. Automation means automated processing, automated transportation , - PowerPoint PPT PresentationTRANSCRIPT
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Contemporary Issues of Industrial Engineering
Flexible Manufacturing SystemsBy
Béla VizváriApril 20, 2011.
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Flexible Manufacturing Systems
• Flexible Manufacturing Systems (FMS) is an automated workshop.
• Automation means – automated processing,– automated transportation,– automated storing.
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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.
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History of FMS
• First FMS in 1960’s in England.
• System 24: ever working workshop.
• Huge majority of FMSs is working in Japan.
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Technical Development of Automated Processing 1.
• NC: Numeric Control– punch tape + dedicated input device– origin: textile industry used circuits of
punch cards.
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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.
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Technical Development of Automated Processing 3.
• CNC: Direct Numeric Control. The machine has its own PC.
• Since 1980’s.
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CNC Machine
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Machine Related Resources
• The capacity of the machine. Measured in time.• The capacity of the tool magazine. Measured in number of
places.
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•Buffer capacity
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Transportation System
• AGV: Automated Guided Vehicle
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AGV Transports a Palette
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Path is Coded into the Floor
•
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Industrial Robot
•
Arm
Hand
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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
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Robot as Transportation Device
•
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Robot as Production Device
• Painter robot
• Welding robot– They are more expensive
• Assembly robot
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Welding Robot
•
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Assembly Robot 1.
•
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Assembly Robot 2: The Case of Printed Circuit Board (PCB)
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Conveyor
•
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Conveyor on Assembly Line
•
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Traditional Conveyor
•
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Automated Storing System
•
Positions
Robot of the
storing
system
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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.
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Scientific Problems
• Avoiding deadlock
• Optimal schedule of production, transportation and storing simultanuously.– Exact models are too large.– Rule of thumb ↔ Heuristics
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A Modern Layout
•
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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
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• Thank you for your attention