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Circuit
Board Handling System
PROJECT
SCOPE:
Develop a system to transport and track the location of large printed
circuit board modules, each weighing 130 lbs., to 64 independent
workstations.
COMPANY:
This company is a well-known manufacturer of large super computers.
DESCRIPTION:
This system consisted of one main conveyor servicing eight independent
conveyors each of which serviced six workstations. Located
on the main conveyor were four pick-and-place units that would
correctly orientate the circuit board modules and place them
on a shuttle that serviced each leg of the system.
UNIQUE
FEATURES:
The system had to meet cleanroom specifications, which did not
allow the use of any pneumatics. Twenty-four servomotors and AC
frequency drives controlled all movements, including gripping functions.
The system could not produce any static and motors needed to be
located so as to not produce a magnetic flux harmful to the components
on the circuit board modules.
PROJECT
DURATION:
This project lasted sixteen weeks from design to installation.
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View
looking down the main conveyor showing three
of the four grip, lift and rotate mechanisms.
These mechanisms positioned and orientated the
circuit boards for correct placement on each
workstation leg.
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Close-up
view of the grip, lift and rotate mechanisms.
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Close-up
view of one of the eight circuit board transport shuttles,
showing the over and under belt to allow for clearance
of the grip fingers on the grip, lift and rotate mechanisms.
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