The invention relates to a centring arrangement for a component carrier, in particular for a mounting frame for structural aircraft components, having a centring pin, a centring receptacle for the centring pin, and a rotary drive for rotating the centring pin about a longitudinal axis of the centring pin, so that the centring pin can be brought into centring engagement with the centring receptacle as a result of the rotation. The invention further relates to a method for centring and locking a centring receptacle.