Rotary leadthrough of a robot arm

Details Rotary leadthrough of a robot arm Rotary leadthrough of a robot arm

B - Operations, Transporting

25

J

B25J 17/02 (2006.01)

Patent

CA 2546777

Disclosed is a rotary shaft feedthrough (D) for a robot arm, particularly a fourth shaft (4) of a delta robot, comprising a housing (6) and a shaft (7) which is disposed in an axial feedthrough (60) of the housing (6), is rotatably mounted in said housing (6), and is to be connected to the robot arm (4). The housing (6) is provided with at least two openings (61, 62) for cleaning the axial feedthrough (60). At least one longitudinal section of the shaft (7) has a diameter that is smaller than the diameter of the axial feedthrough (60) in said section such that a hollow space (R) is created between the shaft (7) and the axial feedthrough (60).

L'invention concerne un passage rotatif (D) d'un bras de robot, notamment d'un quatrième axe (4) d'un robot Delta. Ce passage rotatif comprend un boîtier (6) et un arbre (7), implanté dans un passage axial (60) du boîtier (6) et monté pivotant dans ce boîtier (6), est destiné à être relié au bras de robot (4). Le boîtier (6) comprend au moins deux orifices (61, 62) destinés au nettoyage du passage axial (60). Au moins dans une zone partielle de sa longueur, l'arbre (7) a un diamètre qui est inférieur au diamètre du passage axial (60) dans cette région de telle façon qu'une cavité (R) soit présente entre l'arbre (7) et le passage axial (60).

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