“How It’s Measured” – Automating QC Inspection
Small parts made from glass or thin-walled plastic require special handling. Watch a Q-Span Workstation pick glass bottles from a tray, use robotic calipers to measure multiple dimensions on each bottle, and record the data to a PC. The direct contact measurement is insensitive to glass transparency and reflectivity. The related application note details the design of the gripper and caliper fingertips, controlling grip strength to avoid deformation or surface damage on parts, and calculating return on investment.
For medical parts, regulations often mandate 100% inspection. A Q‑Span™ Workstation reduces the cost, time, and staffing needed to meet this requirement. Here we show a Q-Span Workstation measuring multiple inner diameter (ID) and outer diameter (OD) features on an injection-molded plastic medical part. In the related application note, we discuss considerations for fingertips, fixtures, measurement, and data capture, and demonstrate how to calculate return on investment.
Dovetail features are measured using gage pins that seat into the angle of the dovetail. Manual measurement introduces process variations due to inconsistent grip location and force, operator fatigue and other factors. CMM measurement uses a single stylus probe to sequentially measure part profiles, but is generally slow and often not practical. In this example we automate measurement of a dovetail feature on a machined rail, and discuss considerations for fingertips, fixtures, measurement and data capture.