Hole and Fastener Inspection
Drilling holes and applying fasteners are critical processes in
today’s aerospace manufacturing sector. To ensure the quality
of key components, tight controls must be maintained. The
Gocator 3000 series snapshot sensors offer a complete
solution for this important two step application.
The Application
Countersunk holes drilled into curved parts and assemblies
(such as airplane fuselages) must meet tight tolerances. The
Gocator 3000 series snapshot sensors can be mounted on
robotic systems and used to quickly scan and analyze the hole
geometry.
After the holes are verified, fasteners (such as rivets) are
inserted to join components together. These fastener heads
need to be inspected for flushness, gap and angle in relation
to the surrounding surface in order to ensure the quality of
each join.
Thousands of fasteners can be required in the assembly of a
plane and checking each fastener manually is time-consuming
and error-prone. Gocator 3000 series is a powerful automated
solution for this inspection challenge.
The Implementation
For hole inspection, a Gocator 3210 sensor, mounted to a robotic system, moves
to a group of holes drilled into a piece of material and quickly scans them with a
single 3D snapshot. Multiple instances of the built-in Countersunk Hole tool return
a set of measurements for each hole, including inner and outer radius, depth, and
counterbore.
For fastener flushness inspection, multiple Gocator 3506 sensors are mounted
onto robot arms. As a fuselage or other component moves into a station, the
sensors move close to the surface to scan the fasteners. The built-in Surface
Fastener tool returns measurements on and around the fastener. This tool can
account both for fasteners that protrude and are set too deeply. It also has the
ability to measure other types of fasteners, such as flat heads and dimpled heads,
as well as fastener buttons on the underside of the material.
The Benefits
Gocator snapshot sensors offer a complete 3D quality control
solution for this critical two step inspection process
Gocator 3210’s reliable, accurate measurements (down to
35 µm) help ensure the smallest deviations from strict
tolerances are caught with every scan, reducing the risk of
costly mistakes. In addition, the Gocator 3210 sensor’s high
speed and large FOV let you quickly measure multiple holes
and/or fasteners in a single scan, saving your organization time
and money.
Gocator 3506 offers a smaller FOV with even higher resolution
(down to 12 µm) so you can meet the strict tolerances required
on small holes and fasteners. Similarly, the sensor’s high speed
lets you scan one or more features in less than half a second,
so you can quickly determine if intervention is necessary
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