16kg Payload AGV Articulated Robot Arm Vision System for Rail Transit Troubleshooting

Overview

Track possessions are short, access windows are tight, and the fault has to be found before the first train is released. This 16kg payload AGV articulated robot arm was built for that reality. A six-axis collaborative arm is mounted on a self-navigating mobile platform, so the unit drives to the section under inspection, stabilises itself, and reaches into the space between rails, sleepers and signalling cabinets without dismantling surrounding equipment. A stereo vision head gives the operator a live 3D view of the fault area, while the arm carries inspection tools, cameras and small replacement parts to the exact point of work. Because the AGV articulated robot arm is collaborative by design, engineers can work alongside it inside the possession without the heavy fencing a traditional industrial cell would need, and the whole system can be redeployed to a different tunnel section the same night.

Technical Specifications

Applications

- Rail transit troubleshooting: inspects switch machines, cables, fasteners and third-rail components inside a possession window.
- Tunnel and track inspection: runs a repeatable scan route and logs anomalies with the vision system for later review.
- Signal cabinet servicing: opens cabinets, reads indicators and replaces small modules at height or in cramped alcoves.
- Depot maintenance: moves between inspection bays on its own and handles tool transfer for the maintenance crew.
- Emergency response: enters areas that are unsafe or slow for staff to reach after a derailment or cable strike.
- Multi-scenario deployment: the same unit transfers to metro, light rail, heavy haul and industrial plant inspection duties.

Advantages

- Mobility first: the AGV articulated robot arm drives to the work face instead of the work face coming to the robot, which protects scarce possession time.
- Vision-guided accuracy: the vision system locates bolts, connectors and fault marks and offsets the arm in real time, so results do not depend on a perfectly levelled floor.
- Collaborative safety: torque-sensing joints stop on contact, allowing engineers to work in the same space without a fixed guarding cell.
- Reach where people cannot go: a 967 mm working radius covers the space under a vehicle body and between the rails while the operator stays clear.
- Stable image data: repeatability of ±0.03 mm keeps inspection images comparable across visits, which makes trend analysis reliable.
- Fast redeployment: route maps and task recipes are stored on board, so changing section or scenario takes minutes rather than a re-installation.

FAQ