As a key protective component that safeguards the engine, the lower engine skid‑plate’s dimensional accuracy and structural integrity directly affect assembly fitting and protective performance. The client needs to perform 3D scanning on this skid‑plate to obtain high‑precision and complete 3D data. A 3D inspection chromatogram is generated by comparison with the original model, and the chromatogram is used to visualize and quantify error distribution, so as to scientifically judge whether the skid‑plate is qualified. Since the surface of the skid‑plate is prone to reflection, the client has extremely high requirements for scanning accuracy and data completeness, and adaptation to different inspection scenarios is also required, traditional measurement methods cannot meet such demands. Therefore, the HOLON 3D Smart 49 handheld full‑blue‑laser industrial‑grade 3D scanner is selected to deliver efficient and reliable digital support for the precise quality inspection of engine lower skid‑plates.

On‑site scan image

On‑site scan image

The surface of the engine lower guard plate usually has reflective properties. Conventional measuring tools can hardly effectively eliminate reflection interference, which tends to cause distortion and blurring of collected surface data and makes it impossible to build an accurate three‑dimensional data model. This further affects the generation of 3D inspection chromatograms and error judgment. Traditional measurement mostly takes measurements at local points, so it cannot acquire full‑surface data of the lower guard plate. Hence it is difficult to fully reflect the overall error distribution and satisfy customers’ high requirements for completeness. Contact measurement features low efficiency. Moreover, force applied during operation may scratch or deform the guard plate surface, resulting in data deviation and impairing the authenticity of inspection results. Meanwhile, traditional measurement methods are significantly restricted by scenarios. They cannot flexibly meet inspection requirements in different environments such as workshops and warehouses, which severely limits inspection efficiency and accuracy.

Scan the data graph

Scan the data graph

Adopting the HOLON 3D Smart 49 handheld full‑blue‑laser industrial‑grade 3D scanner can specifically solve the core challenges in the inspection of engine lower guards. Equipped with full‑blue laser technology, this scanner is resistant to reflective properties on workpiece surfaces. It can effectively suppress reflection interference and accurately capture structural details on the lower guard, such as subtle dimensional variations, mounting hole positions and edge contours. It acquires high‑precision 3D data of the entire surface, laying a solid foundation for generating accurate 3D inspection chromatograms and ensuring unbiased error quantification. Its flexible handheld design enables easy coverage of every part of the lower guard without measurement blind spots, guarantees data completeness and allows the chromatogram to fully display error distribution. The high‑speed scanning capability greatly shortens data‑acquisition time. Combined with non‑contact measurement, it not only prevents scratches and deformation on the guard surface but also rapidly obtains reliable data to efficiently support qualification judgment. The scanner features strong adaptability and is not restricted by scenarios. It can stably output high‑quality data in various complex environments without complicated preliminary preparation. The accurate and complete 3D data generated after scanning can be compared with the original model to clearly produce 3D inspection chromatograms, which can precisely quantify errors for judging the qualification of engine lower guards. It fully meets customer requirements and provides reliable digital support for quality control and production‑process optimization of automotive engine lower guards.

3D Detection (Chromatogram)

3D Detection (Chromatogram)