Absolute Accuracy Calibration - ABB IRB 8700 Product Specification

1 Description

1.4.3 Absolute Accuracy calibration

1.4.3 Absolute Accuracy calibration
Purpose
Absolute Accuracy is a calibration concept that improves TCP accuracy. The
difference between an ideal robot and a real robot can be several millimeters,
resulting from mechanical tolerances and deflection in the robot structure. Absolute
Accuracy compensates for these differences.
Here are some examples of when this accuracy is important:
The option Absolute Accuracy is integrated in the controller algorithms and does
not need external equipment or calculation.
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What is included
Every Absolute Accuracy robot is delivered with:
A robot with Absolute Accuracy calibration has a label with this information on the
manipulator.
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• Exchangeability of robots
• Offline programming with no or minimum touch-up
• Online programming with accurate movement and reorientation of tool
• Programming with accurate offset movement in relation to eg. vision system
or offset programming
• Re-use of programs between applications
Note
The performance data is applicable to the corresponding RobotWare version of
the individual robot.
• compensation parameters saved on the robot's serial measurement board
• a birth certificate representing the Absolute Accuracy measurement protocol
for the calibration and verification sequence.
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Product specification - IRB 8700
3HAC052852-001 Revision: K