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TH6x Seam Tracking Sensor

The in-process optical seam tracking with TH6x paves the way towards a perfect welding seam. Components and seams are recorded using a combination of laser lines and optical cameras, allowing the course of the welding seam to be corrected in real-time no matter the height or material. TH6i, with its added grayscale camera, can also track zero gap seams up to 0.02 mm in width.

How it Works

A light pattern comprising three parallel laser lines is projected onto the component surface according to the principle of laser triangulation. At the same time, the seam shape at the joint is scanned by a digital camera. The laser lines are interrupted at the joint due to the inclined projection of approximately 20° and thus mark the seam point on the joint line.