System and method for compensating multi-axis manufacturing systems
AssigneeGM Global Technology Operations LLC
InventorsJie Gu, John S. Agapiou
Life of this patent
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Abstract
A computer controlled machining system is provided, and includes a multi-axis machining device that is configured to produce a workpiece based on a part print, which outlines nominal dimensions for the workpiece. A dimensional measuring device is configured to take or determine measured dimensions of the workpiece. A compensation processor is configured to take the measured dimensions from the dimensional measuring device and compare them to the nominal dimensions, and to determine a plurality of deviation sets from such comparison. The compensation processor transfers the deviation sets to the multi-axis machining device, which shifts a machine coordinate system based on the deviation sets.
Claims8
A machining system, comprising:
- a multi-axis machining device configured to produce a workpiece based on a part print outlining nominal dimensions for the workpiece;
- a dimensional measuring device configured to take measured dimensions of the workpiece;
- and
- a compensation processor configured to:
- compare the measured dimensions to the nominal dimensions and to determine a plurality of deviation sets therefrom;
- and
- transfer the deviation sets to the multi-axis machining device,
- wherein the multi-axis machining device shifts a machine coordinate system based on the deviation sets.
A method for compensating a controllable manufacturing system having at least five axes of movement, comprising:
- producing a workpiece with the manufacturing system based on a part print, such that each workpiece includes a plurality of part features based on a plurality of nominal dimension sets in the part print;
- measuring the part features with a dimensional measuring device;
- deriving a plurality of deviation sets from differences between the measured part features and the nominal dimension sets in the part print;
- creating linear equations that equate the deviation sets for the measured part features to a plurality of compensation variables;
- solving the linear equations for the compensation variables;
- and
- shifting a position of the manufacturing system by the solved compensation variables.
Dependencies are inferred from the claim text.