Patent ID: 6823604
Filing Date: 2004-11-30
Classification: B23Q

Abstract:
A method for adjusting an assembly jig comprising a jig frame, a workpiece support provided in the jig frame for supporting a workpiece, and an actuator for moving the workpiece support relative to the jig frame, the method comprising:a) operating a position measurement device to determine the coordinates of fixed reference points of the jig frame; b) establishing preset coordinates of a measurement reference point of the workpiece support relative to the fixed reference points; c) operating the position measurement device to determine the measured coordinates of the measurement reference point relative to the fixed reference points; d) determining the deviation of the measured coordinates of the measurement reference point from the preset coordinates of the measurement reference point; and e) operating a computer to control operation of the actuator, as needed, to adjust the position of the workpiece support so that the deviation of the measured coordinates of the measurement reference point from the preset coordinates of the measurement reference point is no greater than a predetermined value, wherein the actuator is electrically operated and is capable of imparting movement to the workpiece support in three mutually orthogonal directions, and wherein steps a) through e) are performed automatically at predetermined intervals.