ROBOT ARM LENGTH DETECTING METHOD AND MEASURING JIG THEREOF

摘要

PURPOSE:To infer the arm length of a robot accurately in a short time by providing a measuring jig to make one side control point as the center of rotation, and to allow the circular arc movement of the other side control point. CONSTITUTION:At the tip of the arm 6 of a robot composed of two or more arms 4 and 6, an insert jig 9 is installed. Within the operation scope of the robot, a jig 8 for measuring furnishing two control points a and b to fit to the tip of the insert jig 9, making the one side control point a as the center of rotation, while allowing the circular arc movement of the other side control point b, is set. By fitting the insert jig 9 to the positions of two control points a and b in order, and reading the angle data of the arms, the arm length is calculated. Consequently, the arm length of the robot can be infered in a simple procedure, and accurately including the correction of an-error.