Measuring and testing – Testing of apparatus
Reexamination Certificate
2008-01-08
2008-01-08
Cygan, Michael (Department: 2855)
Measuring and testing
Testing of apparatus
C700S245000
Reexamination Certificate
active
11153043
ABSTRACT:
A method measures the backlash at an axial joint of an industrial robot having a first and a second robot knuckle that are movably connected to each other in a direction of rotation by the axial joint. A load-transmitting device applies a predeterminable force alternately in a measuring line to the first robot knuckle, connected to the free end of a robot arm. A deflection sensor measures the deflection of the first robot knuckle at a predetermined distance from the axis of rotation of the axial joint, and an evaluation device connected to the displacement sensor calculates a turning angle of the first robot knuckle as a measure of a backlash present at the axial joint, taking into account the geometrical arrangement data in the measurement of the deflection sensor and the industrial robot and also the measured deflection.
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Bader Axel
Hansen Sven
Henrich Kim
Schmidt Steffen
ABB Patent GmbH
Cygan Michael
Greenberg Laurence A.
Locher Ralph E.
Patel Punam
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