EyeVision, a software developer based in Karlsruhe, Germany, has added a new tool to its machine vision software suite: the Thread Inspector. This tool is specifically designed to detect defects in fastener threads and can be easily integrated into existing systems.
In industries like automotive, electronics, and aerospace, the quality of threaded components such as fasteners and bolts is crucial. Even the smallest flaw can render these parts unusable, notes Michael Beising, CEO of EyeVision. “For instance, incorrect threading in engine production in the automotive industry can cause severe damage or make the engine unusable,” Beising explains. “In such cases, thread testing is essential to prevent costly rejects.”
Traditionally, thread inspection has been done manually, with human inspectors checking the quality of threaded parts. However, this process can be prone to errors, depending on the skill and experience of the inspector, as well as environmental factors. This makes manual inspections less reliable.
The Thread Inspector tool addresses these challenges by enabling the creation of high-speed automated inspection systems. These systems not only automate the repetitive aspects of thread inspection but also ensure 100% accuracy. Additionally, they store, curate, and distribute inspection results, improving overall efficiency.
The software is designed for flexibility and ease of integration, supporting a wide range of imaging technologies including 1D, 2D, 3D, thermal, and hyperspectral imaging. It also incorporates AI and deep learning algorithms. According to Beising, the software is hardware-independent, meaning it works with almost any camera, provided it has at least 2 MPixel resolution.
Thread Inspector performs detailed inspections by segmenting images of threads into sections and measuring key characteristics such as pitch distance (the space between two adjacent threads), thread angle (the angle between a thread’s helix and a perpendicular plane to the thread axis), major diameter (the largest diameter of a thread), and minor diameter (the smallest diameter). Because the software is essentially turnkey, hardware components can be selected based on the specific needs of the inspection system.
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