Test fixture for air bearing magnetic head suspension assembly

Details Test fixture for air bearing magnetic head suspension assembly Test fixture for air bearing magnetic head suspension assembly

1992-12-24

1994-08-23

Noland, Tom

Measuring and testing

Testing of apparatus

325212, 360 31, G01M 1900, G11B 2736

Patent

active

053397029

ABSTRACT:
A fixture (10) for testing a head/gimbal assembly (11) before installion into a disk file functions to load and unload the assembly onto and from a rotating disk (12). The fixture comprises a mounting block (15) for attaching the fixture to a stationary frame (16) to position the fixture in a predetermined position relative to a rotating disk and to permit adjustment of the fixture to selected vertical positions relative to the disk surface. A platform (25) which carries a head/gimbal clamping device (30) is pivotally attached to the mounting block to move a clamped head/gimbal assembly in an arc in a plane normal to the disk surface during loading and unloading. The clamping device comprises a base (31) having a surface which mates with the surface of the head/gimbal and is clamped by a spring-biased element (32) having tooth-type extensions (37) for clamping the head/gimbal against the mating surface of the base. The spring biased element is mounted for pivotal movement relative to the platform and a thumb lever (33) is provided for the operator to release the clamp to readily replace the assembly. The external loading/unloading force is applied directly to the platform and not the assembly.

REFERENCES:
patent: 3478262 (1969-11-01), Vigil
patent: 4416144 (1983-11-01), Chen et al.
patent: 4504871 (1985-03-01), Berwick et al.
patent: 4532802 (1985-08-01), Yeack-Scranton et al.
patent: 4795981 (1989-01-01), Ertingshausen et al.
patent: 4902971 (1990-02-01), Guzik et al.
patent: 5038265 (1991-08-01), Chen
patent: 5254946 (1993-10-01), Guzik
patent: 5289327 (1994-02-01), Suda

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