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Auto-Adjusting Card Dampening Support System for High-Speed Placement

IP.com Disclosure Number: IPCOM000118164D
Original Publication Date: 1996-Oct-01
Included in the Prior Art Database: 2005-Apr-01
Document File: 2 page(s) / 39K

Publishing Venue

IBM

Related People

Isaacs, PD: AUTHOR [+2]

Abstract

Disclosed is an auto-adjusting support system which automatically adjusts for the different thicknesses of workboard holders or cards on component placement tools. The tolerance range that the self-adjusters will work is 12 mm active self-adjusting range compared to 0.05 mm of the supports often provided by the manufacturer. If, for any reason, the 12 mm active range does not accommodate a particular situation, a coarse adjustment of plus or minus 25 mm or more by design (Figure).

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Auto-Adjusting Card Dampening Support System for High-Speed Placement

      Disclosed is an auto-adjusting support system which
automatically adjusts for the different thicknesses of workboard
holders or cards on component placement tools.  The tolerance range
that the self-adjusters will work is 12 mm active self-adjusting
range compared to 0.05 mm of the supports often provided by the
manufacturer.  If, for any reason, the 12 mm active range does not
accommodate a particular situation, a coarse adjustment of plus or
minus 25 mm or more by design (Figure).

Label Description
  A    Adjustable dampening threaded cylinder
  B    Lock nut
  C    Threaded extension housing
  D    Magnetic base

      These card supports will be used in multiples on a placement
machine.  They can be placed to support either workboard holders or
printed circuit boards.  In the case of printed circuit boards, they
can be placed in between back side components, if needed.

      The dampening is adjustable to a wide range application
stiffness requirements from thin flimsy cards to stiff cards to stiff
workboard holders.  Also, this can be used in very narrow or wide
cards which vary in their stiffness and flatness while in the
placement machine.  The dampening works very effectively to absorb
placement force  to prevent card springback during placement.