Browse Prior Art Database

MULTI-PRODUCT FRONT END PALLET

IP.com Disclosure Number: IPCOM000007697D
Original Publication Date: 1996-May-01
Included in the Prior Art Database: 2002-Apr-16
Document File: 2 page(s) / 71K

Publishing Venue

Motorola

Related People

Jonathan Cadenhead: AUTHOR [+3]

Abstract

A pallet (work holder) has been historically designed and built for each new product in order to build the product in our front end factories, i.e. the factory area where components are assembled onto a printed circuit board. These pallets have been cus- tom made for each new PCB and incorporate fea- tures of location, clamping and origin. The pallet is registered precisely for placement of components at each assembly station. This is accomplished using tooling holes located at the side of the pallet, or using the leading edge of the pallet. The registra- tion of the origin is normally specific for each assem- bly station and does not change. Each time the printed circuit board has been changed, the pallet was also changed and/or reworked to accommodate the new geometries or changed component place- ments During the prototyping process of a new pal- let, changes to the PCB occur quite frequently, incur- ring high costs and extended product development and manufacture.

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MOTOROLA Technical Developments

MULTI-PRODUCT FRONT END PALLET

by Jonathan Cadenhead, Greg Kawczynski and David Alan Tribbey

  A pallet (work holder) has been historically designed and built for each new product in order to build the product in our front end factories, i.e. the factory area where components are assembled onto a printed circuit board. These pallets have been cus- tom made for each new PCB and incorporate fea- tures of location, clamping and origin. The pallet is registered precisely for placement of components at each assembly station. This is accomplished using tooling holes located at the side of the pallet, or using the leading edge of the pallet. The registra- tion of the origin is normally specific for each assem- bly station and does not change. Each time the printed circuit board has been changed, the pallet was also changed and/or reworked to accommodate the new geometries or changed component place- ments During the prototyping process of a new pal- let, changes to the PCB occur quite frequently, incur- ring high costs and extended product development and manufacture.

  A front end pallet is needed that will accommo- date a reasonable number of PCB array sizes, lend- ing the pallet to reuse ofits major components.

  The multi-product front end pallet shown in Fig- ure 1 consists of the pallet frame of the width sufi- cient to fit a standard front end conveyor, with a length which can be varied as required. This frame is equipped with a fron...