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US 8,219,245 B2Granted
Articulated arm robot
AssigneeKUKA Roboter GmbH
InventorsGünther Merk, Joachim Markert, Rainer Krumbacher
Life of this patent
Estimating the term…
Abstract
To increase the safety of an articulated arm robot with robot members connected by means of joints as open kinematics and with functional elements acting on the joints, such as drive motors, gears, brakes and a weight balance system, while reducing the mechanical limitations of the motion space of the robot, the present invention provides that at least some of the said functional elements have a dual design.
Claims5
An articulated arm robot comprising:
- a robot arm comprising a plurality of articulated robot members that operate safely dependent on a plurality of different functions;
- a plurality of different pairs of redundant components, each different pair of redundant components being respectively associated with one different function among said plurality of different functions, and each redundant component in each of said redundant pairs being operable by itself to perform the function associated with that pair of redundant components;
- said plurality of pairs of redundant components comprising a pair of redundant drive motors that each perform, by itself, one of said functions, and a pair of redundant gears that each perform, by itself, one of said functions, and a pair of redundant blocking brakes that each perform, by itself, one of said functions, and a plurality of redundant weight balance systems that each perform, by itself, one of said functions;
- and
- a monitoring system configured to detect continued occurrence of each of said plurality of functions during operation of said robot arm, and configured to automatically stop operation of said robot arm upon an absence of any of said functions being detected during said operation of said robot arm.
2 more elements
Dependencies are inferred from the claim text.