Preparing the published article.
Robot Accuracy Checks After Maintenance
Any intervention can move the machine a fraction.
What to check
| Check | Method |
|---|---|
| Zero position | Confirm each axis after reassembly |
| Tool centre point | Verify against a reference point |
| Work frame | Re-teach or verify after fixture disturbance |
| Positioning test | Measure at a known point in the working area |
| Repeatability | Repeat the same move and compare |
When to do it
- After gearbox work, motor replacement or a collision.
- After moving or re-levelling the machine.
- Before restarting precision production.
Accuracy verification methods are defined in the manufacturer manual and applicable test standards.