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Engineering
Motion and timing analysis of the handling process for unloading
a fast injection mold machine helped to redesign part handling
and optimize the control system timing. Cycle time improvements
of more than 5% were achieved.
Electronics Assembly
Pickup of chips from a supply tape yielded random loss of
components. Lost components caused further damage and maintenance
was increased. A high speed video showed the systematic of
the pickup errors. Vacuum supply and pickup tools were adjusted.
Machine uptime and placement quality was significantly increased,
line throughput was back on target.
Microelectronics
Motion analysis of fast moving pick and place devices was
carried out to optimize machine and process performance. Slow
motion process studies revealed multiple options for better
dynamic drive tuning and control timing. Accelerations and
inertia reactions were minimized. Mechanical wear and machine
vibration was significantly reduced. Overall performance in
high speed applications was increased over 8%.
Packaging
Cardboard box handling had random failures which caused lost,
partly unfolded boxes to block the machine and stop the packaging
line. A slow motion analysis revealed the reasons for the
random failure -- a slight misadjustment of the handling device
and wear of the vacuum pickup. Timing analysis with PLC signals
shown in the slow motion sequence showed poor timing of the
process. Together all problems had brought the system to the
edge of a safe process window. All causes could be fixed within
the same day. The line now worked better than specified.
Custom Assembly
Crimp tools of manual feed machines showed an increasing
amount of malfunctions at a customer's site. The machine and
tool manufacturer had replaced experienced tool design staff
with young, inexperienced engineers. They did not know about
the many little details that made a well designed tool work
properly, as their predecessors had. Systematic high speed
analysis at the customer's production site clearly showed
the nature of malfunctions. The young engineers learned a
lot within a short period of time. Tool quality is now almost
back to normal and the problems were solved by using high
speed video.
Product Development
For better understanding of failure mechanisms in automotive
headlights, high speed video was used. A new design had to
be found to achieve the specified product lifetime. Slow motion
studies contributed significantly to better design details
of the spiral-wound filament suspension.
Safety Devices
All airbag manufacturers are legally obliged to do statistical
quality control using high speed video to document the proper
functioning of airbags. Parachutes are tested as to their
unfolding; multiple protective devices in street traffic are
optimized after slow motion analysis.
Materials Testing
Drop tests, longitudinal and lateral break load test, flexion
and elasticity tests, dynamic deformation of materials suspension.
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