A simple, low-cost fixture was specified by the customer for the Quality Control Laboratory. This was to hold a lighting assembly in a test where the welded contacts were pulled off.
A Motorised Test System was specified as the test needed to be repeatable and accurate.
A multi-purpose Small Wedge Grip was used to hold both electrical contacts. The bulb assembly was held inside a mounting fixture attached to the Motorised Test Stand.
To prevent point contact and possible damage to the bulb assembly, 2 pegs with rubber sleeves were used to secure it. The contacts were pulled to destruction at a test speed of 50 mm/min with peak load being captured at a fast rate of 1200 HZ to ensure a high degree of repeatability between tests. A cable between the AFG and VersaTest Stand was used to automatically reverse the crosshead of the stand to its start position after the contacts were broken.
VersaTest Motorised Test Stand (superseded by the MultiTest-dV series)
1000 N AFG
Bulb Assembly Mounting Fixture
Small Wedge Grip