Spatial coordinate-based method for identifying work pieces
AssigneeHexagon Metrology, Inc.
InventorsHomer L. Eaton, Douglas P. Schueneman
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Abstract
In a method for identifying work pieces based on spatial coordinates. Each of a set of parts to be processed using a multi-axis, articulated spatial measurement arm, are marked with three points defining a distinctive triangle. In a data base, the side lengths of each distinctive triangle is referenced to the part it identifies and to related processing parameters. Before processing a part, the probe of the measurement arm is successively positioned on each of the marked points. Data processing equipment associated with the arm retrieves from the data base the identification of the part and the related parameters.
Claims16
A method for identifying a plurality of work pieces and for defining the locations of a plurality of points on said work pieces using a multi-axis, articulated spatial measurement arm positioned at a situs, wherein said arm has a given reach and includes a probe tip, said method comprising the steps of:
- marking each of said work pieces with at least three loci defining at least one triangle dimensionally different from all the triangles defined by marked loci on any other one of said work pieces;
- compiling a data base linking characteristics of triangles defined on said work pieces with identifications of said work pieces;
- applying said probe tip to said loci on each of said work pieces and measuring locations of said loci;
- and
- using measured locations to identify each work piece according to said data base.
Dependencies are inferred from the claim text.