Vertical drilling and reaming

Task

Vertical drilling and reaming of Outher Rear Spar A380

Solution

• Special dedicated single aisle CNC machine for light machining (drilling, milling, etc.) in aircraft assemblies
• Sinumerik 840D safety integrated
• Twin motor X-axis drive concept to compensate backlage
• The 180° rotation feature of the entire CNC tower axis allows double sided working envelope
• Built in safety features (Laser scanner, enclosed drill head) allows closed by both manual and automated work process
• Pneumatically activated pressure foot with adjustable pressure force

Scope of supply

The modular cartesian 3-axis "tower style" gantry is based on stiff and torsion resistant welded steel structure. The high precision standardized and modular GÜDEL helical racks, pinion and worm gearboxes, allow a highly accurate and reliable solution without extra linear scales. The dual drive concept on main axis ensures minimum backlash between the rack & pinion drive. Built in butt joints on main axis allow future extension of the current 20 m main travel.
Drill head contains a fully vector controlled machining spindle with tools system HSK 42, trough the bit MQL coolant ability and modular pressure foot design.

The pressure foot includes several built in features such as

• spring loaded & pneumatic adjustable pressure force and force control
• built in vacuum air flow for chip removal
• hydraulic activated swivel motion for tool exchange accessibility
• exchangeable pressure foot nose piece

The unique patented feature to rotate the entire drill machine 180° allows a double sided work envelope.

Result

Highly flexible and optimized drilling process with full CNC capability replacing conventional jig based drilling equipment.