Research on the Inspection Information Extraction from 3D Models of Sheet Metal Parts by the Photoelectric Equipments

The short comings and limitations of traditional inspection method of sheet metal parts were described in this paper. Aiming at the inspection method based on the 3D models of sheet metal parts, the method of the inspection information extraction was introduced also. The actual shape of the sheet metal was obtained by the portable photoelectric equipments and then the 3D model was formed. The inspection information was extracted from the 3D model by the system which developed by VC++ tools on the CATIA platform. The characteristics of this method are high accuracy, environmental protection and high efficiency.

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Study on the Inspection & Planning System for Sheet Metal Parts Based on its Three Dimensional Model

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.446-447.585 ◽

2013 ◽

Vol 446-447 ◽

pp. 585-589

Author(s):

Lei Hua ◽

Dong Wang ◽

Bo Hao ◽

Li He

Keyword(s):

Sheet Metal ◽

High Efficiency ◽

Three Dimensional ◽

Planning System ◽

Inspection Planning ◽

Dimensional Model ◽

Three Dimensional Model ◽

Inspection Method ◽

Metal Parts ◽

Sheet Metal Parts

Aiming at the short comings and limitations of traditional inspection method of sheet metal parts, the inspection solution based on the three dimensional model of sheet metal parts was described in this paper. According to the shape, size, accuracy requirements and so on, the system can give different inspection method. The inspection result will be achieved and the system can judge if the measured sheet metal part is qualified. The characteristics of this system are high accuracy, environmental protection and high efficiency.

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Large sheet metal parts inspected rapidly to high accuracy

Aircraft Engineering and Aerospace Technology ◽

10.1108/aeat.2007.12779fab.002 ◽

2007 ◽

Vol 79 (6) ◽

Keyword(s):

Sheet Metal ◽

High Accuracy ◽

Metal Parts ◽

Sheet Metal Parts ◽

Large Sheet

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Hierarchical representation and similarity assessment for reuse of sheet metal parts

Proceedings of the Institution of Mechanical Engineers Part B Journal of Engineering Manufacture ◽

10.1177/0954405416640170 ◽

2017 ◽

Vol 232 (2) ◽

pp. 328-338

Author(s):

Zhi Li ◽

Xionghui Zhou ◽

Wei Liu

Keyword(s):

Sheet Metal ◽

Manufacturing Industry ◽

3D Models ◽

Product Model ◽

Hierarchical Representation ◽

Metal Parts ◽

Similarity Assessment ◽

Sheet Metal Parts ◽

Manufacture Process ◽

Attributed Graph

Sheet metal parts are widely used in the manufacturing industry. With the number of 3D models increasing, it is essential to retrieve existing resources. Effective similarity assessment would be useful in many downstream applications, such as design reuse and manufacture process revision. We propose a hierarchical representation and similarity assessment algorithm to retrieve 3D models of sheet metal parts. Based on single-side representation extracted from solid models, flat and bent faces are recognized and clustered into groups. The morphological relationship between these two groups is then described and an attributed graph is built to store the connection between flat groups. A hierarchical representation is derived by a simplification and assembly process. This structure supports similarity assessment in different levels of detail; thus, a multiple-resolution formula is introduced to measure the total similarity. The algorithms were implemented based on a neutral standard for the exchange of product model data (STEP) format and a prototype demonstrates the application in shape search and reuse in manufacturing industry.

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