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Ma Xinhui
Zhang Guoxiong
Liu Shugui
Wang Xu
State Key Laboratory of Precision
Measuring Technology and Instruments,
Tianjin University,
Tianjin 300072, China |
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MEASURING INFORMATION INTEGR-ATION MODEL FOR CAD/CMM*
Abstract: A CAD/CMM workpiece modeling system based on IGES file is proposed. The modeling system is implemented by using a new method for labelling the tolerance items of 3D workpiece. The concept—“feature face” is used in the method. First the CAD data of workpiece are extracted and recognized automatically. Then a workpiece model is generated, which is the integration of pure 3D geometry form with its corresponding inspection items. The principle of workpiece modeling is also presented. At last, the experiment results are shown and correctness of the model is certified.
Key words: CMM Character recognition 3D reconstruction Feature face Inspection item |