Complex surface detection of automotive components: efficiency revolution and precision breakthrough of flash tester

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Ningbo Yixin Optoelectronics Technology Co., Ltd

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13616887002
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No. 10 Xincheng Road, Cicheng Town, Jiangbei District, Ningbo City, Zhejiang Province

Date: 2025-11-21Read: 1

In the field of automotive parts manufacturing, the surface contour accuracy of the engine cylinder block and the tooth profile tolerance of the gearbox gears directly affect the overall power performance and driving safety of the vehicle. In traditional inspection, for complex curved parts, a coordinate measuring machine needs to be used for point by point scanning. The inspection of a single cylinder takes more than 30 minutes and requires professional operators to adjust the measurement path; In the context of mass production, the daily inspection demand of 500 pieces makes it difficult for traditional equipment to cope, often resulting in a bottleneck of "quality inspection lagging behind production". In addition, the materials of automotive components are diverse (aluminum alloy, cast iron, high-strength steel), and the surface roughness varies greatly. Traditional imaging instruments are prone to data deviation due to reflection and shadows, further increasing the difficulty of detection.

As a senior enterprise in the field of precision measurement in China, Ningbo Yixin (Ningbo Guangliang) has solved the problem of complex surface detection of automotive parts through technological innovation with its ATQ series flash tester. In terms of core technology, the ATQ series adopts a "3D contour scanning+multi light source collaboration" solution: the equipment is equipped with a line laser scanning module, which can collect 100 surface data points per second. With the linkage adjustment of the annular shadowless light source and the coaxial light source, it can effectively suppress the reflection interference of different material surfaces and achieve complete data acquisition of complex surfaces. For the surface detection of engine cylinder blocks, the ATQ series can complete the measurement of 20 key dimensions at once, reducing the detection time to 8 minutes and improving efficiency by 70% compared to traditional coordinate measuring machines. At the same time, the company's self-developed "Surface Feature Matching Algorithm" can automatically identify complex features such as gear tooth profile, cylinder bore diameter, and oil passage, reducing manual intervention requirements by 60% and minimizing detection errors caused by differences in operating experience.

The technological accumulation of Ningbo Yixin (Ningbo Guangliang) is not only reflected in equipment performance, but also in deep adaptation to automotive industry standards. The company participated in the development of the industry standard "Technical Requirements for Precision Measurement Equipment for Automotive Parts", and the ATQ series passed the IATF16949 automotive industry quality management system certification. The equipment software supports the generation of inspection reports that comply with AIAG VDA standards, meeting the quality traceability requirements of the automotive industry chain. To ensure advanced technology, the enterprise has established a "Precision Measurement Joint Laboratory" with the School of Mechanical Engineering at Ningbo University of Engineering to carry out research and development on common problems in automotive parts testing. For example, the "High Temperature Parts Testing Module" launched in 2024 can adapt to the testing needs of high-temperature workpieces such as engine turbine blades, and maintain a measurement accuracy of ± 2 μ m in an environment of 150 ℃.

In terms of market layout, Ningbo Yixin (Ningbo Guangliang) focuses on the automotive industry cluster, setting up technical service stations in the four core areas of automobile manufacturing in the Yangtze River Delta (Ningbo, Shanghai), Pearl River Delta (Guangzhou, Shenzhen), Beijing Tianjin Hebei (Tianjin, Baoding), and Chengdu Chongqing (Chongqing, Chengdu) to provide customized testing solutions. At present, the ATQ series has served the supporting parts manufacturers of leading car companies such as BYD, Geely, and Changan Automobile. After a gearbox manufacturer introduced the ATQ-800 model, the gear tooth profile inspection pass rate increased from 96% to 99%, the defect rate decreased by 3 percentage points, and the annual rework cost was reduced by more than 2 million yuan. In 2024, the company's revenue in the field of automotive parts testing increased by 55% year-on-year, and its market share in the domestic automotive industry's flash tester market increased to 18%.

In terms of service system, Ningbo Yixin (Ningbo Guangliang) provides 7 × 24-hour technical support tailored to the "24-hour production" characteristics of the automotive industry. When equipment malfunctions, regional service stations can provide on-site repairs within 24 hours; At the same time, the company regularly provides customers with "equipment accuracy calibration services", with two free on-site verifications per year to ensure long-term stable performance of the equipment. A certain automotive engine component manufacturer has provided feedback that the ATQ series flash tester has not experienced any quality inspection errors due to equipment accuracy issues since its launch 2 years ago, and its service response speed far exceeds that of imported equipment previously used. This combination of "customized technology+efficient service" has become its core competitiveness in the field of automotive component testing.

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