Flexible manufacturing systems

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Flexible manufacturing systems

• (FMS)
• ??????????? ???????????

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Flexible manufacturing systems (FMS)

• FMS are extensions of group technology and
  cellular manufacturing concepts. Using integrated
  CAD/CAM, parts can be designed and programmed in
  half the time it would normally take to do the
  engineering. The part programs can be downloaded
  to a CNC machining center under the control of an
  FMS host computer.
• The FMS host can schedule the CNC and the parts
  needed to perform the work.

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????????????????????????????

• 1) ?????????????????????? ????????????????????????
  ???????????
• 2) ??????????????????????????(????)
  ?????????????????
• 3) ??????????????????????????? ???????????????????
  ?????????

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Tests of Flexibility of AMS

1. Part Variety Test ??????????????????????????????
   ???????????????????/??????????????????????????????
   ???? ????????????????? Lot /Batch
2. Schedule Change Test ?????????????????????????????
   ?????? ?????????????????????????????????
   ?????????? ????????????????? ???????????????????

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Tests of Flexibility of AMS

• Error recovery test ??????????????????????????????
  ?????????????????
• New part test ??????????????????????
  ??????????????????????????????????????????????????
  ??

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FMS Types

• Single Machine Cell, SMC
• Flexible Manufacturing Cell, FMC
• Flexible Manufacturing System, FMS

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FMS Types
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Single Machine Cell, SMC
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Flexible Manufacturing Cell, FMC
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• System Part variety Schedule Error
  Recovery New Part
• Type change
• S ??????????????????? ???
  ?????????????????????? ???
• M ?????????????????????
• C
• F ??? ????????????????? ???
  ???????????????????? ???
• M ???????????????? FMS
• C
• F ??? ????????????????? ???
  ?????????????????????????? ???
• M ????????????????
  ?????????????????
• S

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????? Benefit

• ?????????????????????????????????????? Increased
  Machine Utilization
• ?????????????????????????? Fewer machine required
  ????????????????????? U ???
• ??????????????????????????
• ????????????????????????????????

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????? Benefit

• ????????????????????????? Reduced Inventory
  requirements Work in process (WIP) ????
• ???????????????????? Lower Manufacturing Lead
  Times
• ??????????????????? ?????????????????????????
• ????????? ????????????????????????? Opportunity
  for unattended production

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FMS component ??????????

• Work Station
• Load/Unload Station gt Robotics, AS/RS
• Machining Station gt CNC
• Other process Station
• Assembly ?????????
• Other station and Equipment
• Material Handling and Storage System
• AGVs, AS/RS
• In line layout , Loop layout, Ladder Layout
• Open field Layout, Robot-Centered Layout

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In-line FMS layout
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FMS loop layout
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FMS ladder layout
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Open field FMS layout
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Structure of FMS application system