Patent ID: 6336767
Filing Date: 2002-01-08
Classification: B23H,B23Q,Y10T

Abstract:
Coupling device comprising a first coupling member and a second coupling member and clamping means for axially clamping said coupling members together in a clamping direction defined as the z-axis direction, at least three prismatic pins projecting from the first coupling member, each of said pins provided with a prismatic surface at at least one pin side, a first set of at least three circumferentially spaced references being formed from the first coupling member and which extend in a common plane defined as the x-y plane, transverse to the z-axis direction, each of said references defining a z-reference, the second coupling member comprising at least three grooves arranged in correspondence to the individual positions of the prismatic pins, and axially elastic elements being provided at each groove for precise positioning of the coupling members relative to each other within the x-y-plane, wherein the z-references of the first set are formed at free ends of said prismatic pins, and a first counter set of references are formed from the base of each groove, and define z-counter references and wherein the first coupling member is provided with a second set of circumferentially spaced z-references extending in a common x-y-plane transverse to the clamping direction, and the second coupling member is provided with a second counter set of z-counter references arranged in correspondence to the positions of the z-references of the second set such that when the coupling members are clamped together at a first load, each z-reference of one of the sets is spaced from the corresponding z-counter reference of the related counter set to leave a clearance therebetween, and each z-reference of the other set abuts the corresponding z-counter reference, and when the coupling members are clamped by a load higher than said first load, all z-references of the first and the second set abut their corresponding z-counter references of the first and the second counter sets.