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Technical Paper

A Two Tower Riveting Machine with a True Z Axis

The A380 aircraft is the largest passenger aircraft ever built and an appropriate machine was required to accomplish the fastening of the wing plank to stringer and buttstrap joints. The lower wing panels are curved along the length and move 1.42m out of plane. All previous E4000 machines had clampup heads that would extend and retract whatever distance was required to contact the wing panel. To improve toolpoint alignment, Electroimpact added a Z-axis that moves the yoke in order to reduce the necessary travel envelope of the clamp table axes and to cause them to clamp in the same plane regardless of panel position along the Z-axis.
Technical Paper

Automated Riveting Cell for A320 Wing Panels with Improved Throughput and Reliability (SA2)

A new Low-Voltage Electromagnetic Riveting (LVER) machine has entered service at the Airbus UK wing factory in Broughton, Wales, in an assembly workcell for A320 family wing panels. The machine is based on existing Electroimpact technology but incorporates numerous design modifications to process tools, fastener feed hardware, machine structure and the control system. In the first months of production these modifications have demonstrated clear improvements in fastener installation cycle times and machine reliability.
Technical Paper

Drill and Drive End Effector

Electroimpact developed an end effector for Airbus UK, Ltd. for use on a Kuka KR350 robot provided by Airbus UK. The end effector is referred to as the DDEE (Drill and Drive End Effector), and incorporates four main functions. The end effector pushes up on a wing panel with programmable pressure, drills a hole with a servo-servo drill, inspects the hole with a servo ball-type hole gauge and then drives a pin-tail style lockbolt into the hole. The end effector is being used as part of a development and feasibility study for incorporating automation into the wing panel manufacture process.