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US 4,637,775 AGranted
Industrial robot device
AssigneeMitsubishi Denki Kabushiki Kaisha
InventorHisao Kato
Life of this patent
Estimating the term…
Abstract
An industrial robot device is disclosed which is equipped at a forward end of an arm with a work tool such as a cutting or a grinding tool, and in which there is provided a device such as a friction damper for suppressing sudden movement of the work tool in the direction of the normal displacement thereof towards and away from a workpiece. Damage to the work tool and workpiece due, for instance, to sudden changes of load, is thereby prevented.
Claims12
An industrial robot device in which a work tool such as a cutting or a grinding tool is mounted at a forward end of an arm, said device comprising:
- (a) a support frame for supporting said work tool;
- (b) means provided on said support frame for supporting said work tool displaceably relative to said support frame, said supporting means comprising an elastic member for applying an elastic force in a predetermined direction to said work tool and a displaceable member movable with said work tool;
- and
- (c) a friction damper comprising a pair of friction members sandwiching said displaceable member therebetween, said friction damper being provided on said support frame for exerting a damping force on said displaceable member, said damping force preventing sudden displacement of said work tool by an external force and by said elastic force.
1 more element
Dependencies are inferred from the claim text.