Abstract: An industrial robot for material processing includes a manipulator with a base, a link, an arm and a hand. A processing device of the industrial robot is movable by the manipulator and is attached to the hand of the manipulator, and is supplied with a medium via a medium line. Provided for the medium line is a drag chain subjected to a traction directed away from a connection of the drag chain close to a processing location by a tensioning device. The tensioning device has a tensioning lever and a restoring device. The tensioning lever is attached to a partial length of the drag chain. The tensioning lever is deflectable, counter to an action of a restoring force generated by the restoring device, towards the connection of the drag chain close to the processing location such that the tensioning lever performs a pivoting movement about a lever pivot axis.

Abstract: An industrial robot for material processing includes a manipulator with a base, a link, an arm and a hand. A processing device of the industrial robot is movable by the manipulator and is attached to the hand of the manipulator, and is supplied with a medium via a medium line. Provided for the medium line is a drag chain subjected to a traction directed away from a connection of the drag chain close to a processing location by a tensioning device. The tensioning device has a tensioning lever and a restoring device. The tensioning lever is attached to a partial length of the drag chain. The tensioning lever is deflectable, counter to an action of a restoring force generated by the restoring device, towards the connection of the drag chain close to the processing location such that the tensioning lever performs a pivoting movement about a lever pivot axis.

Abstract: A cannon has a barrel extending along a barrel axis and having in turn a cradle provided with a pair of trunnions centered on and defining a trunnion axis substantially perpendicular to the barrel axis. The gun carriage has a pair of cheeks spaced apart along the trunnion axis and juxtaposed with the trunnions. Respective gudgeons are secured to the cheeks centered on the trunnion axes and surrounding the trunnions. Respective axial bearings are braced axially between the trunnions and gudgeons and centered on the trunnion axis and respective radial bearings support the trunnions in the gudgeons for swiveling of the barrel about the trunnion axis in the carriage. Respective rings centered on the trunnion axis are threaded on the gudgeons. These rings are oppositely axially braced against the cheeks for axially loading the axial bearings. The rings can keep the axial bearings under axial compression so that there is no play at all in the joint.