Bi-level test fixture

Details Bi-level test fixture Bi-level test fixture

1992-02-13

1993-09-21

Nguyen, Vinh

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

With rotor

324158P, G01R 3102

Patent

active

052472493

ABSTRACT:
A bi-level test fixture for testing printed circuit boards includes a shuttle plate which is reciprocated between first and second testing positions by a motorized actuator assembly. The actuator assembly includes an eccentric circular cam mounted on a rotating drive shaft of a geared electric motor, wherein the cam is received in a rectangular aperture in the shuttle plate. The aperture forms a bearing surface for the cam, and as the cam is rotated it slidingly engages the walls of the aperture for shifting the shuttle plate between the testing positions. A switching assembly is provided for switching the motor on when the shuttle plate is in one of the testing positions, and for automatically switching the motor off after the shuttle plate reached the other testing position.

REFERENCES:
patent: 4230985 (1980-10-01), Matrone et al.
patent: 4626776 (1986-12-01), Wilkinson
patent: 4636723 (1987-01-01), Coffin
patent: 4746861 (1988-05-01), Nesbitt

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