Abstract: The invention relates to a displacement and/or positioning device for the displacement and/or positioning of an object in five axes, comprising an object support and five coupling members which support the object support in a frame, whereby four of the five coupling members are each connected to the object support by means of a first joint arrangement each with two degrees of freedom and the remaining one of the five coupling members is connected to the object support by means of a second joint arrangement with one degree of freedom.

Abstract: The invention relates to a displacement and/or positioning device for the displacement and/or positioning of an object in five axes, comprising an object support and five coupling members which support the object support in a frame, whereby four of the five coupling members are each connected to the object support by means of a first joint arrangement each with two degrees of freedom and the remaining one of the five coupling members is connected to the object support by means of a second joint arrangement with one degree of freedom.

Abstract: A tripod bearing device featuring a stationary frame and a carrier moveable relative to it, which are connected together via three braces that are adjustable in their lengths. Each brace is coupled to the frame and to the carrier via a joint each with two rotational degrees of freedom. Moreover, a torsion drive is assigned to each brace for twisting the carrier-end joint of the relevant brace relative to the frame-end joint of this brace about its longitudinal axis. Consequently, a constructively simple parallel structure with three machining axes can be realized which, with its high dynamic stiffness, enables an accurate positioning of the carrier. Furthermore, a method for torsion compensation in the braces is given.

Abstract: In known hexapodal machining centers, a movable support is supported and the individual struts are articulated on the support in one plane. For permitting a greater movability of the support, especially in the rotational degrees of freedom, and for improving the absorption of the forces, a hexapodal machining center having a stationary frame and a movable support is provided, in the case of which the six connecting struts of adjustable length are articulated on the support. Three articulation points respectively define a common plane of application so that two separate planes are defined. Also, the articulation of the struts on the frame is effected in two separate planes of application.