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The quality of holes has important influence on the mechanical strength, assembly quality and life of aircraft, and inferior quality holes may even cause airplane crash and casualties. The perpendicular accuracy of holes during drilling is crucial one of all the factors influencing the quality of holes. In order to improve the perpendicular accuracy during drilling, this paper presented an attitude...
Aiming at the drilling verticality in aircraft assembly, this paper presents a design method of a Double-Eccentricdisc Normal-Adjustment (DENA) mechanism; it can adjust the two rotational degrees of freedom by the interaction of two eccentric discs, and make the drill axis coincide with the normal direction of the drilling point. This method ensures that the position of the drill vertex can be kept...
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