Method for aligning a workpiece to a robot

摘要

The invention relates to a method for aligning a workpiece (15) to a robot, said robot comprising a gripper (10) for gripping the workpiece (15) and a detail camera (12), the method comprising the steps of:
- moving the gripper (10) over a stack (14) of workpieces;
- gripping the upper workpiece;
- moving the robot with the gripped workpiece (15) in a predetermined position, in which at least part of the workpiece is in the view of the detail camera (12);
- detecting a predefined contour (17) in at least one image of the detail camera;
- calculating the difference between an expected position of the predefined contour (17) and the detected position of the contour to align the workpiece to the robot.