Robot wrist of an industrial robot
AssigneeFujitsu Fanuc Limited
InventorsHajimu Inaba, Shigemi Inagaki, Susumu Ito
Life of this patent
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Abstract
A robot wrist of an industrial robot having a wrist housing supporting two orthogonally arranged rotating output shafts therein, each of the shafts being connected to a robot hand, and a built-in fluid conveying means provided for distributing pressurized air introduced from the outside of the robot wrist toward the robot hand attached to one of the rotating cutput shafts. An output end of each of the two rotating output shafts may either be plugged by a plug element or closed by a stop valve when the output end is not connected to the robot hand.
Claims7
A robot wrist attached to an end of a robot arm of an industrial robot for attaching thereto a manipulative robot hand, comprising:
- a wrist housing means for supporting therein first and second rotating output shafts, each shaft having an output end disposed in one of two substantially orthogonal end faces of said housing means, said output shafts also being substantially orthogonal to one another with the axes thereof intersecting at a point;
- a rotation drive means secured to said wrist housing means and directly driving said first rotating output shaft;
- a first bevel gear mounted on said first output shaft;
- a second bevel gear operatively engaged with said first bevel gear mounted on said second rotating output shaft, to drive said second rotating output shaft;
- fluid conduit means provided in each of said first and second output shafts for providing pressurized fluid to the output ends thereof for operating the manipulative robot hand;
- means for conveying the pressurized fluid from outside said wrist housing to said fluid conduit means;
- and
- coupling means for providing a tight connection between said conveying means and said fluid conduit means.
Dependencies are inferred from the claim text.