A method for improving the positioning accuracy of a manipulator, such as
a multiaxial or multiaxle industrial robot is proposed, by producing at
least one absolutely accurate model of the manipulator for the control
thereof. According to the invention, for producing the absolutely
accurate model, firstly a pose of the manipulator is determined by an
external measuring system, then deviations of the determined pose from a
preset pose are detected, after which, as a function of the external
measuring system and for minimizing deviations, the manipulator is moved
into an end pose substantially corresponding to the preset pose and
finally internal position values of the manipulator in the end pose are
used for parametrizing the absolutely accurate model. In this way the
invention improves the absolutely accurate measurement of robots,
particularly with regards to accuracy and thus permits the replacement of
a random, absolutely accurate robot in a working cell by another such
robot.