In challenging manufacturing environments, 3 key factors influence the long-term performance of automated metrology systems installed in uncontrolled environments.
Creating a metrology solution that consistently meets demanding production rates, yields and uptime is not something that happens by accident. Building a solid foundation for conducting precision inline inspection for high volume production applications requires 3 factors: adjustability, calibration and environmental monitoring.
- Tool safe locks for all instrumentation adjustments.
- Defined adjustability scheme for all metrology and part degrees of freedom in the tool.
- Defined adjustability range and sensitivity for all axis (with sensitivity at the minimum possible setting, typically in microns).
- Custom instrument kinematic mounts for repeatable removal and replacement when needed with compromising accuracy.
Custom Calibration Solutions
- Calibration grids for camera scaling, distortion mapping and focus.
- Precision ground step blocks for displacement or thickness measurement calibration.
- Precision cut gauge holes for profilometer calibration.
- 2-3 axis active alignment via crossed fiberoptic lasers for gantries and end of arm tools.
- Robot teach point fixtures permanently installed in the machine.
The AMP 3100 fixture has integrated calibration standards for metrology instrumentation.
Active Environmental Monitoring
In traditional metrology, many measurements are performed in a quality lab under certain temperature, humidity and lighting conditions. However, the automated metrology process often eliminates the need for a dedicated quality lab. These robust systems can be used inline or nearline in uncontrolled manufacturing environments.