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US 7,188,544 B2Granted
Industrial robot
AssigneeABB AB
InventorsFredrik Persson, Hakan Hvittfeldt, Jan Larsson, Pierre Mikaelsson
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AssigneeABB AB
InventorsFredrik Persson, Hakan Hvittfeldt, Jan Larsson, Pierre Mikaelsson
Estimating the term…
An industrial delta robot with an arm system rotatable in space and including a base section, a moveable plate, several multi-jointed pull rods and a telescopic axle arranged between the base section and the moveable plate, opposite ends of the pull rods and of the telescopic axle being connected with the base section and the moveable plate respectively, and the telescopic axle comprising an inner axle and an outer tube arranged on the inner axle and displaceable in a longitudinal direction where a pair of end-to-end torsional rigid bushings are arranged in a stationary manner on the outer tube in which the inner axle is mounted to be displaceable, the bushings being spaced apart at confronting inner ends to form a transversely extending lubrication pocket for continuous lubrication of the inner axle during movement relative to the bushings.
An industrial delta robot having an arm system rotatable in space, comprising a base section, a moveable plate, several multi-jointed pull rods and a telescopic axle arranged between the base section and the moveable plate, opposite ends of the pull rods and the telescopic axle being respectively connected with the base section and the moveable plate, the telescopic axle comprising an inner axle and an outer tube arranged on the inner axle and displaceable in a longitudinal direction, and wherein a pair of end-to-end torsional rigid bushings are arranged in a stationary manner on the outer tube in which the inner axle is mounted to be displaceable, confronting inner ends of the bushings being slightly spaced apart to define an annular gap forming a transversely extending lubrication pocket for continuous lubrication of the inner axle during movement relative to the bushings.
A method for the manufacture of an industrial delta robot having an arm system rotatable in space, comprising the steps of:
An industrial delta robot having an arm system rotatable in space, comprising a base section, a moveable plate, several multi-jointed pull rods and a telescopic axle arranged between the base section and the moveable plate, opposite ends of the pull rods and of the telescopic axle being respectively connected with the base section and the moveable plate, the telescopic axle comprising an inner axle and an outer tube arranged on the inner axle and displaceable in a longitudinal direction, an end section of the outer tube being connected to the moveable plate and an end section of the inner axle being connected to the base section, a pair of end-to-end torsional rigid bushings being arranged in a stationary manner on the outer tube in which the inner axle is mounted to be displaceable, the bushings being spaced apart at confronting inner ends to form a transversely extending lubrication pocket for continuous lubrication of the inner axle during movement relative to the bushings, the bushings and a guiding device being firmly attached on the inner axle at an end opposite the end section thereof such that part of the guiding device is arranged to abut the inside of the outer tube.
Dependencies are inferred from the claim text.