Browse Prior Art Database

MULTI TWIST LCD ASSEMBLY DEVICE

IP.com Disclosure Number: IPCOM000007485D
Original Publication Date: 1995-Jul-01
Included in the Prior Art Database: 2002-Apr-01
Document File: 2 page(s) / 78K

Publishing Venue

Motorola

Related People

Sam Desai: AUTHOR [+3]

Abstract

These papers present an improved semiautomatic LCD and Frame Assembly Device. The semiauto- matic device can be applied to a variety of sizes and shapes ofelectronic assemblies.

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MOTOROLA Technical Developments

MULTI TWIST LCD ASSEMBLY DEVICE

by Sam Desai, Garth Mager and Luis Padilla

ABSTRACT

  These papers present an improved semiautomatic LCD and Frame Assembly Device. The semiauto- matic device can be applied to a variety of sizes and shapes ofelectronic assemblies.

  The Assembly Device uses an air regulated rotary actuator with drive sprocket and six sprockets with slotted tools which are driven by a chain, mounted on the guide plate as shown in Figure 1. The angu- lar rotation can be controlled anywhere from 0 to 360". The angular rotation can be set for precise repetition. Each slotted tool mounted on the sprock- ets rotates at the same time.

while aligning through holes located in the PCB with tabs located on the frame.

  When the guide plate is in the down position, the tool slot engages a tab after which the actuator rotates all six sprockets 90" at the same time. And in so doing, the Frame is securely assembled with the PCB.

ADVANTAGES

PROCESS

  Referring to Figure 1, the Assembly Device has a built in nest to fabricate the assembly of the LCD in to the frame. The user places a frame into the nest pocket, the LCD is then placed within the frame and then a PCB is placed over the tiame and LCD

  The Semi-Automatic Assembly Device reduces the tab twist assembly corn six separate manual oper- ations into one; this reduces at least 60% of the assem- bly time per frame assembly. The tool mounted on the sprocket is also simplified into a simpl...