Patent ID: 6249985
Filing Date: 2001-06-26
Classification: B23Q,B25J,G01B

Abstract:
A method for accurately positioning a device for temporarily fixing a workpiece in a three-dimensional working space of known coordinates, the workpiece requiring a multidimensional seating, use being made of a machine that is computer-guided and designed to be capable of approaching all coordinates with a tool, and of a vertically adjustable device freely movable on a baseplate, the device being connected in a rotationally movable manner to a first coupling and the tool being connected in a rotationally movable manner to a second coupling, each coupling comprising at least two coupling parts which are connected by means of lockable and pivotally movable intermediate joints, and the two couplings being temporary couplable indirectly to one another, the method comprising the steps of:a) determining a spatial arrangement of the multidimensional seating in the working space with a computer;b) determining a reference plane of the seating and an axis intersecting the reference plane;c) fixing a coupling part of the second coupling to the tool, after the intermediate joint of the second coupling has been secured in the direction of an intersecting axis;d) moving the tool toward the intersecting axis at a defined distance from the reference plane;e) connecting a further coupling part of the second coupling to a coupling part of the first coupling which is approximately preadjusted, and subsequently fixing the coupling parts of the first coupling in an axial direction defined by the second coupling;f) securing the device on the baseplate and in terms of its height; andg) uncoupling the couplings and inserting support means, complementary with the seating on the workpiece, into a free coupling part of the first coupling.