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Browse Prior Art Database

Pallets for Handling Modules of Various Sizes

IP.com Disclosure Number: IPCOM000082292D
Original Publication Date: 1974-Nov-01
Included in the Prior Art Database: 2005-Feb-28
Document File: 2 page(s) / 64K

Publishing Venue

IBM

Related People

Formichelli, JC: AUTHOR [+2]

Abstract

This pallet plate has a matrix of die punched, square-hole patterns. hole size and matrix dimensions are unique for each substrate type. The hole configuration serves as a clearance for the module, pins and pin flanges and has resting pads for supporting the module. The resting pa are made to provide a 90 degrees angle step. To achieve this 90 degrees angle step between the resting pads and the vertical locating surface, two plates are laminated by fixture brazing.

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Pallets for Handling Modules of Various Sizes

This pallet plate has a matrix of die punched, square-hole patterns. hole size and matrix dimensions are unique for each substrate type. The hole configuration serves as a clearance for the module, pins and pin flanges and has resting pads for supporting the module. The resting pa are made to provide a 90 degrees angle step. To achieve this 90 degrees angle step between the resting pads and the vertical locating surface, two plates are laminated by fixture brazing.

The top plate contains the vertical location surfaces in the X and Y planes, and the bottom plate provides the horizontal member supports in the Z plane. The horizontal member supports the module and the vertical surface locates the module relative to external references on the plate. The plate also has features for assembly of springs, pallet frame and identification tags.

Stainless steel, tempered leaf springs are riveted to the opposite adjacent sides of each hole pattern. The springs corner locate each module against the locating surfaces, holding and locating each module relative to the external references. Stacking holes, with stacking pins therein, allows the stacking of the pallets. The pallet skids or runner protect the device sides of the modules.

The method of assembly of the springs to the main plate and the main plate to the pallet frame is of a semikinematic nature, which allows the spatial freedom of translational expansion and contraction. T...