Browse Prior Art Database

Fly Height and Mag Test Tool Block

IP.com Disclosure Number: IPCOM000104091D
Original Publication Date: 1993-Mar-01
Included in the Prior Art Database: 2005-Mar-18
Document File: 2 page(s) / 51K

Publishing Venue

IBM

Related People

Balster, CH: AUTHOR

Abstract

Disclosed is a method of holding a head suspension assembly (HSA) during test. The test may be fly height, magnetic, gram load, or other.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 84% of the total text.

Fly Height and Mag Test Tool Block

      Disclosed is a method of holding a head suspension assembly
(HSA) during test.  The test may be fly height, magnetic, gram load,
or other.

      The disclosure consists of a means to hold and accurately
position an HSA for test.  Figs. 1 and 2 show an isometric and a plan
schematic of the disclosed tool block.  The tool block is shown in
the open position, ready for loading with an HSA, and is held in this
position by a leaf spring 1 (Fig. 2).  The tail piece clamp 2 (Fig.
2) is also shown in the open position and is held in place by a
spring loaded plunger 8 (Fig. 2) engaging a detent in the clamp
wheel.

      The HSA is located in the tool block by placing the mounting
boss over pin 2 (Fig. 2).  At this time, the handle 1 is pulled back
in the direction of the arrow.  With this motion, the cam 3 (Fig. 2)
is pulled away from the slide 4 (Fig. 2).  The compression spring 5
(Fig. 2) under compression pushes the slide back in the direction of
the arrow.  In doing so, the HSA is pulled back to the locating pins
3 (Fig. 1) and held in place against the pins by the force of the
compression spring 5 (Fig. 2).  The locating pins are perpendicular
to the track of the test disk.  As the handle continues to move, the
pressure point of the cam 7 (Fig. 2) goes over center thereby
allowing the leaf spring 1 (Fig. 2) to start exerting an upward force
on the cam.  When the tool comes to its closed position, the clamp
paddle...