Currently, aluminum alloy die casting is the mainstream manufacturing process for sub-frames. However, factors such as alloy heating temperature, mold temperature, and the complexity of the parts during the casting process can all affect parts' quality. Therefore, quality inspection of the sub-frame is essential to ensure the effectiveness of subsequent assembly.

  Limitations of Traditional Measurement Methods:  

Traditional measurement methods such as calipers and plug gauges have limitations in inspecting large and complex die-castings. They suffer from low efficiency and limited scope of detection, making it hard to meet the high-precision and high-efficiency requirements for batch inspection of parts. Given this, Vision 3D provides a metrology solution for effectively solving the issues in 3D detection of medium to large-sized complex parts.

  Challenges in detection:  

1.The parts are large in size and have irregular shapes, requiring a full-inspection of their profile.
2.There are multiple porous slots that require high-precision detection of key dimensions such as hole positions and aperture.
3.Strong light-reflection is available on the local area of parts’ surface.

  Advantages of Vision 3D：

1.Equipped with high-performance 3D sensors for rapid measurements

The Autoscan series of automated 3D measurement devices are equipped with industrial high-resolution cameras, allowing for rapid acquisition of the parts 3D profile data without manual intervention. Coupled with robotic arms and turntables, the detection range is greatly expanded, effectively addressing the full-size inspection of large parts. The inspection time for each part is approximately 210 seconds.

2.Optimized measurement algorithms for high accuracy in measuring reflective areas and Holes

By utilizing phase-weighted fusion-based multi-exposure algorithm and grayscale image hole extraction technique, there is no need to spray powder or past markers on the reflective parts, which allows for rapid acquisition of parts’ critical dimensional data such as hole positions, aperture, and the accuracy of aperture can reach up to 0.05mm.

3.Automated Data Processing and Analysis

Utilizing data processing software, the measurement data can be automatically processed and customized reports can be generated. Based on the results of batch inspections, trends in key dimensions can also be analyzed.