The disclosure relates to a coupling device. This is known below as a docking receptacle. The docking receptacle comprises an approximately U-shaped pilot centring device with an insertion trough tapering approximately conically in an insertion direction for pre-centring a docking insert designed to mate with the docking receptacle, at least a first and a second centring device, with the first and the second centring devices each comprising two coupling elements which are designed for centring a docking insert with respect to the docking receptacle along four centring axes in an insertion direction, and wherein a drawing-in device with two hydraulically actuated drawing-in or capture hooks are provided. The disclosure further relates to a docking insert. This comprises a pilot centring body having an insertion tray tapering approximately conically in an insertion direction and extending in the horizontal direction, at least a first and a second centring device, wherein the first and the second centring devices each comprise at least two coupling elements and/or coupling counter-elements which are designed for centring the docking insert with respect to a docking receptacle along four centring axes extending in an insertion direction and two capture pins extending transversely to the insertion direction in the horizontal. According to the disclosure, a coupling assembly or a docking assembly is, furthermore, provided comprising the docking receptacle and the correspondingly mating docking insert.
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