High-tech test procedures for aviation

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Ultrasonic inspection of large composite components with dual robots

When inspecting carbon composite components, mainly in aerospace applications, for irregularities, ultrasonic test machines are employed. Ultrasonic Sciences Ltd uses Stäubli robots when larger and complex (fuselage) parts have to be tested. They prove to be first choice of robot because of their accuracy in a testing machine where two robots with a total of 18 axes have to be co-ordinated and synchronised.

The observation of a robot system being put into operation in the plant of Ultrasonic Sciences Ltd, Aldershot UK, may leave the viewer fascinated but somewhat perplexed. Two Stäubli six-axis robots TX200L HE move in such a way that the two water jets which they emit via their tools meet exactly in the middle, creating a fountain in the form of an umbrella. In doing so, they perform complex and perfectly synchronous movements, including the swivel movement of the head and the seventh linear axis.