Introduction OTC TOUCH SENSOR

OTC DAIHEN Cobots accessories offers a range of advanced touch sensors specifically designed for robotic welding applications. These include models like FD-WDS/FD-WD‑H touch sensors and the FD-QD 3D laser “touchless” sensor, each engineered to detect weld joint variations and part deviations with high speed and accuracy.

Key Features

• • • Real-time deviation detection:
      FD-WDS and FD-WD-H sensors use the weld wire itself to detect linear variations, sense surface angles, and locate precise touch points—without extra hardware
    • ast and accurate “touch” sensing:
      These sensors perform quick searches (up to 118 in/min), reducing multiple program steps to one or two commands for simple integration
    • Non-contact, 3D part search:
      The FD-QD sensor projects laser stripes to perform 3D scans of parts, aligning robot programmes with actual workpiece positions, even on complex or thin materials. Capable of speeds up to 200 cm/min, it adapts to part deviations without disrupting the weld flow.

Integration & Compatibility

All sensors are fully integrated with OTC DAIHEN robots and controllers, operable through the teach pendant. With no need for external PCs or complex wiring, setup and live monitoring become streamlined and user-friendly.

Benefits for Welding Applications

• • • • Improved weld accuracy:
        Sensors track seam deviations and joint features, enabling precise torch angle and gap adjustments during welding.
      • Enhanced productivity:
        Quick scanning reduces setup downtime; adaptive tracking means fewer interruptions due to misalignment.
      • Versatility:
        FD-­QD supports MIG, TIG, and plasma welding processes, while FD-WDS/FD-WD‑H suit metal plates with varying thickness or surface conditions.
      • Ease of use:
        Pre-programmed SF‑command routines and built-in teach pendant menus simplify installation and reduce programming complexity.

Applications & Use Cases

• • • Seam tracking for thick and thin materials
    • Part alignment in robotic welding cells
    • Adaptive correction of weld start/stop points
    • Angle compensation and surface orientation detection

OTC DAIHEN touch sensors, including FD-WDS/FD-WD‑H and FD-QD, deliver robust, high-speed real-time sensing, tailored for complex welding environments. Their fully integrated design, combined with fast, accurate detection, supports superior weld quality and increased automation efficiency. Whether used in heavy-plate or precision weld cells, these sensors help manufacturers achieve consistent joint quality and throughput.
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