Three-dimensional, adjustable universal joint, for robotics, manipulators etc.

摘要

The universal joint has two platforms (1,2) separated from one another by an exclusively pressure-loaded, centrally acting, longitudinally adjustable activator (3). Six draw cables (4) are fixed in pairs at three positions (5), displaced in relation to one another through 120 degrees on a fictitious circular line around the linkage of the central activator to the first platform (1). The draw cables, in an altered pairing arrangement, are guided through the second platform (2) by three guides (7) arranged displaced to one another through 120 degrees on a fictitious circular track around the central activator. A controller is connecter to the central activator and to actuators (6) of the draw cables to control the longitudinal displacement.