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          Industry applications

          Three-dimensional detection of car door lock

          Car door lock 3D inspection case

          In order to make the car have a tight seal, the interior of the body is isolated from the outside. In addition to the reasonable structure and proper strength of the door and the body, a safe and reliable car door lock system is required. Use the 3D scanner HL-3DS to obtain the 3D data of the car door lock, compare the obtained 3D data with the original CAD model, and see the overall deviation between the actual workpiece and the CAD drawing, and clearly know the quality of the car door lock. .

          Practical problems

          1. The use of traditional detection methods (such as inspection tools, fixtures, three coordinates, etc.) is very cumbersome and time consuming, and it is not easy to accurately and quickly measure and detect the structure of the car door lock.

          2. the shape of the car door lock is complex, and the groove shape of each face is different, it is difficult to measure, and the customer has very high precision requirements for the obtained three-dimensional data of the car door lock.

          Hualang solutions


          Car door lock on-site scanning

          The 3D scanner can perform 3D scanning on complex steam parts, obtain high-precision 3D data, improve the design efficiency of reverse designers, ensure the accuracy of CAD design results, and provide quality assurance for mold opening work.

          For the characteristics of the car door lock, Hualang 3D engineers proposed a solution to use: 3D scanner HL-3DS (fast acquisition of high-precision 3D data of car door locks) + reverse design software Geomagic Studio (convert car door lock point cloud data) For the triangular mesh surface data) + detection software Geomagic Qualify (using the obtained car door lock 3D data and the original CAD model for targeted data ratio), the quality of the car door lock is detected.

          1. Preparation in the early stage
          Spraying the developer: Improve the background color contrast of the sample surface for better scan data.
          Marking points: The acquired data is positioned and stitched in the scanning software.

          2. 3D scanning
          The scanning speed of the 3D scanner (HL-3DS) is fast, it takes only 10 minutes to obtain the 3D data of the car door lock, and the data precision is as high as 0.02 mm. The 3D scanner (HL-3DS) uses extrapolation multi-frequency phase shift grating technology, code point calibration technology and fully automatic splicing technology. The car door lock data is imported into the three-dimensional reverse software (Geomagic) for processing, and the car door lock point cloud data is converted into triangular mesh surface data.


          Car door lock STL data

          3.three-dimensional detection

          The acquired car door lock 3D data is imported into Geomagic Qualify, which can quickly detect the difference between the car door lock (CAD) model and the manufactured parts of the product. Geomagic Qualify can display the results in an intuitive and easy-to-understand graphical comparison. The difference.


          Car door lock comparison test


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