Search Results

This paper presents preliminary result in a flexible fixture solution for airframe assembly comprising a modular steel framework called Box-joint and flexible tooling modules called Hexapods. The solution is comprises a framework that is screwed together instead of welding beams together, which enables re-building the framework when performing change-over in a more extensive reconfiguration. The Hexapods are parallel legged passive fixture stands that can change their configuration to facilitate easy setup in a change-over between handle different assemblies. A solution to configure the Hexapods manually is described. The investment cost can be kept low by using a metrology system to provide for high accuracy in the tool configuration process instead of using precision parts in the fixture system.

This paper presents preliminary result in a flexible fixture solution for airframe assembly comprising a modular steel framework called Box-joint and flexible tooling modules called Hexapods. The solution is comprises a framework that is screwed together instead of welding beams together, which enables re-building the framework when performing change-over in a more extensive reconfiguration. The Hexapods are parallel legged passive fixture stands that can change their configuration to facilitate easy setup in a change-over between handle different assemblies. A solution to configure the Hexapods manually is described. The investment cost can be kept low by using a metrology system to provide for high accuracy in the tool configuration process instead of using precision parts in the fixture system.

Traditionally, in the civil aerospace industry, assembly fixtures are large, bespoke, permanent structures that are costly to both design and manufacture. Additionally, the time to design, manufacture and install a large fixture can be significant with lead times in excess of 24 months. Within Airbus Operations Ltd there is a requirement to reduce non-recurring costs, reduce the time to market and improve the capacity and flexibility of equipment. This means that while the costs and lead times must be reduced, the utilisation of the tooling should be increased. Flexible and reconfigurable fixtures have not yet been deployed within Airbus Operations Ltd due to the assembly sizes and complex component configurations. However, they offer the potential for reducing costs by utilising off the shelf components. Using standard parts and implementing design tools can reduce the design time.