POSITIONING PROCESS AND SYSTEM

摘要

A process and device are disclosed for positioning devices for temporarily fixing a workpiece in any desired angular position in a three-dimensional working space of which the co-ordinates are known, in particular when the workpiece requires a multidimensional support. A computer-controlled machine with a tool movable in the direction of all co-ordinates is used for that purpose, together with a freely movable, vertically adjustable device or supporting column mounted on a base plate and upon which the supporting device for the multidimensional support of the workpiece is positioned. Based on the tool geometry or a C.A.D. programme, a coupling or an appropriately designed measurement head of a measurement machine is fixed on the tool with respect to a calculated plane of reference for the tool and to an axis inclined in relation thereto which cuts the plane of reference. The coupling parts designed as a coupling are then brought to a position at the tool or device which corresponds to the plane of reference, either directly by means of driven coupling parts or after a previous adjustment on an adjustment device placed on the base plate. The tool or measurement head is then moved into the precalculated position in space of the support of the workpiece and a supporting column with a corresponding supporting device is aligned with the position of the tool. The disclosed process steps and the positioning systems used to implement the process enable a three-dimensional supporting surface to be provided within a few minutes for a workpiece to be measured or machined, with an accuracy of more than 0.1 mm. 00000