Project Abstract
Curtis Screw Company is a world leader in value-added
manufacturing of precision metal components and assemblies for a vast array
of global markets.
Curtis Screw has developed state of the art assembly
operations. The technology supporting their patented quick
connect/disconnect hydraulic assemblies is an area of special interest. In
this process, assembly machines affix an o-ring, snap retaining ring, and
Teflon seal to a machined component.
One of their assembly machines, the
Ami1, made by
DT
Industries, has been the result of a large amount of rejects and lower
productivity. Six different hydraulic fittings have inner and outer
o-rings, snap rings, retainer rings, and Teflon seals installed by this
particular machine. Some of the fittings have all of the rings installed,
and some just have one or two rings installed. Despite their differences,
each type of fitting has had rejects due to the machine’s faults. Other
problems that exist are, the operator must pay very close attention for
skewed or trapped parts that could damage the machine, and most importantly,
quality and quantity. The parts must be checked by eye for rejects that
were not found by the machine, and there production numbers are much lower
than they could be, if the machine were running at 100%.
Desired State:
-
Eliminate the need for operator attention at the
outer o-ring assembly station
-
Eliminate the need for operator attention at the
Teflon ring assembly station
-
Increase production rate to 1200 part per hour
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Updated Items
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