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Solder Ring Placement Mechanism

IP.com Disclosure Number: IPCOM000061991D
Original Publication Date: 1986-Sep-01
Included in the Prior Art Database: 2005-Mar-09
Document File: 1 page(s) / 11K

Publishing Venue

IBM

Related People

Yurko, MJ: AUTHOR

Abstract

A device for placing solder rings over the short side of pins on a ceramic substrate first locates the substrate in a locating nest, then picks up the solder rings in specific patterns that correspond to the desired part number (for a variety of pin configurations) and assembles the pins and the solder rings for subsequent soldering. The device works in the following manner.

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Solder Ring Placement Mechanism

A device for placing solder rings over the short side of pins on a ceramic substrate first locates the substrate in a locating nest, then picks up the solder rings in specific patterns that correspond to the desired part number (for a variety of pin configurations) and assembles the pins and the solder rings for subsequent soldering. The device works in the following manner.

Solder rings 1 are oriented in a locating nest 2 by a loading fixture (not seen). A movable slide 3 is held in the position as seen in the drawing by a locating pin 4 that inserts into a locating bushing 5. The slide 3 is manually moved to the left after the locating pin 4 is removed from the bushing 5. The locating pin 4 is inserted into locating bushing 6 that secures the slide 3 in the correct position such that the solder rings 1 in the locating nest 2 are under a pick-up pin assembly 7. An air cylinder 8 (seen in side view of drawing) is actuated downward to drive the pick-up pins 9 through the solder rings 1 form a press-fit on the pins 9. The cylinder 8 is retracted and the rings 1 remain on the pins 9 in the desired pattern.

The slide 3 is moved to the right such that a substrate in the substrate nest 11 is now located directly under the pick-up pins in the pick-up pin assembly 7 that holds the solder rings 1. The cylinder 8 drives the pick-up pin assembly 7 downward against the retractor buttons 10 which retract the pins 9 into the stripper plate (not...