The term Reverse Engineering (Reverse Engineering) originated in the 1960s, but its study from the broadness of engineering, from the scientific deepening of the reverse has just begun in the early 1990s. Reverse engineering is similar to backward reasoning and belongs to the system of reverse thinking. It is guided by social methodology, based on modern design theory, methodology, technology, using a variety of professionals of engineering design experience, knowledge and innovative thinking, the existing product dissection, analysis, reconstruction and re-creation, in the field of engineering design, it has a unique connotation, it can be said that it is the design of the design. Inverse engineering technology is a combination of measurement technology, data processing technology, graphic processing technology and processing technology. With the rapid development of computer technology and the above unit technology is gradually mature, in recent years in the design and development of new products are increasingly being applied, because in the product development process needs to be in-kind (samples) as the basis for the design of reference models or as the final validation of the basis for the application of the technology, so in the automobile, motorcycle shape of the design of coverings and decorative parts, home appliances shape design, artwork reproduction in the design and design, the design and design of the product. Therefore, in the design of automobile and motorcycle exterior coverings and interior decorative parts, the design of home appliances, and the reproduction of works of art, the application of inverse engineering technology is particularly urgent. The so-called inverse engineering is the data acquisition equipment to obtain the physical samples of the surface or surface and cavity data, input specialized data processing software or three-dimensional CAD software with data processing capabilities for processing and three-dimensional reconstruction, reproducing the geometry of the physical samples on the computer, and on this basis for the original reproduction, modification or re-design, the method is mainly used in the difficult to accurately express the shape of surfaces or the shape of components of unknown design methods for the three-dimensional reconstruction of the shape. This method is mainly used for three-dimensional reconstruction and redesign of surface shapes that are difficult to accurately express or the shapes of components with unknown design methods.
Manufacturing process:
Reverse engineering (reverse engineering) can generally be divided into four stages: The first step: the original shape of the part digitization usually use three coordinate measuring machine (CMM) or laser scanner and other measuring devices to obtain the original shape of the part surface points of the three-dimensional coordinate values. The second part: from the measurement data to extract the geometric features of the part prototype According to the geometric properties of the measurement data for its segmentation, the use of geometric feature matching and identification methods to obtain the original shape of the part has the design and processing characteristics. Part III: Reconstruction of CAD model of the original shape of the part The segmented three-dimensional data in the CAD system, respectively, to do the fitting of the surface model, and through the intersection of the surface pieces and stitching to obtain the CAD model of the surface of the original shape of the part. Part IV: Reconstruction of the CAD model of the inspection and correction of the CAD model according to the CAD model obtained by re-measuring and processing of the sample method to test the reconstruction of the CAD model to meet the accuracy or other test performance indicators to repeat the above process for those who do not meet the requirements, until the part to meet the requirements of the reverse engineering design.
Equipment:
Adopting the principle of cumulative molding of materials, the laser scanning photosensitive resin is directly controlled by CAD data to quickly and accurately manufacture products of arbitrary geometric shapes without considering their complexity, and truly realizing moldless manufacturing. It has the advantages of fast molding speed, high molding precision, good surface quality, and simple and time-saving processing. It is suitable for automobile/motorcycle, household appliances, aviation, aerospace, shipping, light industry, toys, medical repair, scientific research institutions and all other manufacturing industries and manufacturing research institutions.
This kind of equipment many manufacturers have, basically this is the meaning of