| 摘要 |
Robot equipment for carrying out a work operation on an object, for example the installation of a part on the object, comprising an industrial robot (5, 10, 11, 12, 13, 14) which supports a work tool (7, 8, 9). The equipment comprises first distance sensors (G1-G5) which are mounted in fixed and known positions in relation to the robot. Each first sensor measures the distance between the sensor and the object and supplies a signal, corresponding to this distance, to a calculating unit (6) which, on the basis of the sensor signals, makes a first, rough determination of the position and orientation of the object in the necessary number of degrees of freedom. Control means are arranged to guide the robot, on the basis of the position of the object thus determined, to predetermined positions (e.g. P1) in relation to the object. In each one of these positions, an accurate position determination, preferably in two degrees of freedom, of a small area of the object is made with the aid of a sensor (G6) mounted on the robot tool. Based on these position determinations, a second, accurate position determination in relation to the robot is made of a part of the object which is relevant to the work operation to be performed. |
