Robot-Contouring Accuracy Measurement
Original Publication Date: 1988-May-01
Included in the Prior Art Database: 2005-Feb-15
This article describes a device for providing a contouring accuracy measurement for a robot. A conductive fixture has a predetermined diameter hole therein and is held by the gripper of the robot. A taut conductive wire is strung between a known starting point and a known stopping point. The fixture is closed around the wire so that it (Image Omitted) extends through the hole. If the robot deviates in any direction from the straight line motion programmed, the wire touches the perimeter of the hole, completing an electrical circuit which indicates that the robot has deviated from the programmed straight line motion. An important attribute relative to a robot's manipulator performance is the ability to move from one point to another in a straight line.