The integrated machine vision system enables the most demanding remote welding applications in e-mobility and automotive assembly.
HIGHvision is an advanced machine vision add-on for Coherent HIGHmotion 2D and RLSK scanning laser welding heads that enables precise seam tracking and beam position control. The system delivers increased throughput along with exceptional quality and reliability for welding parts with complex 3D shapes or long seams involving curves. This makes it particularly useful for corner welding of automotive bodies and doors, battery manufacturing processes such as sealing individual cells, welding busbars and pins, and for welding hairpin joints in electric motor manufacturing.
HIGHvision combines a camera, various lighting options and software modules specifically optimized for the following four different types of tasks:
- Seam tracking: In fillet welding, the vision system detects differences in the actual part from the programmed seam position. It then automatically corrects the position of the laser beam "on the fly". Precise position correction can be achieved throughout the work area at welding speeds greater than 10 m/min.
- Advanced image processing algorithms are used to detect part orientation and identifymisalignment. The software automatically corrects the programmed weld position to ensure optimum weld quality. The system can also recognize different part features, making it ideal for welding prismatic, cylindrical and sleeve batteries.
- Shape Recognition: this feature adjusts the beam position after recognizing and finding a user-defined shape on the part prior to welding. This translates into higher productivity as it alleviates the positioning requirements of the part. There is virtually no limit to the types of user-defined shapes.
- Hairline detection: This feature performs automatic hairline detection within milliseconds, making it one of the fastest systems on the market. Once the position of the hairline and the gap between adjacent parts is determined, the system automatically adjusts the weld parameters to ensure the highest quality weld.
The HIGHvision system is one of the fastest and most accurate solutions available, as it is an embedded vision system designed from the ground up specifically for integration with Coherent's remote-controlled laser welding heads. Comprehensive knowledge and control of every aspect of the system's optics, mechanics and software allowed Coherent's engineers to thoroughly optimize the system for performance, speed, ease of use and reliability.
Learn more about HIGHvision's advanced machine vision systems at Coherent.com.
Source: Coherent.com