Browse Prior Art Database

Air Operated Pin Removal Tool

IP.com Disclosure Number: IPCOM000091452D
Original Publication Date: 1968-Feb-01
Included in the Prior Art Database: 2005-Mar-05
Document File: 2 page(s) / 44K

Publishing Venue

IBM

Related People

Adsmond, RT: AUTHOR [+3]

Abstract

Pneumatic tool 10 enables pin 12, soldered to printed circuit board 14, to be removed. Tool 10 includes a pin-receiving member 16 for accommodating the pin to be removed. Member 16 is mounted within casing 17 that is supported on board 14 by legs 19. Heater wire 18 is wrapped around member 16 to heat the latter which heats pin 12 and softens or melts the solder joint. Clamping jaws 21 and 22, pivoted respectively at 24 and 26, have tips that fit into holes in member 16 to clamp pin 12. Such jaws are operated by cam-actuator 28. Double-acting air cylinder 30 is connected by stud 32 to jaw-supporting plate 34. In operation, air is introduced into cylinder 30 above piston 36, forcing the latter downwardly. This moves member 16 downwardly onto pin 12.

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Air Operated Pin Removal Tool

Pneumatic tool 10 enables pin 12, soldered to printed circuit board 14, to be removed. Tool 10 includes a pin-receiving member 16 for accommodating the pin to be removed. Member 16 is mounted within casing 17 that is supported on board 14 by legs 19. Heater wire 18 is wrapped around member 16 to heat the latter which heats pin 12 and softens or melts the solder joint. Clamping jaws 21 and 22, pivoted respectively at 24 and 26, have tips that fit into holes in member 16 to clamp pin 12. Such jaws are operated by cam-actuator 28. Double-acting air cylinder 30 is connected by stud 32 to jaw-supporting plate 34. In operation, air is introduced into cylinder 30 above piston 36, forcing the latter downwardly. This moves member 16 downwardly onto pin 12. Jaws 21 and 22 are actuated to engage pin 12 and current is applied to wire 18 through brass strips 38 and 40. An air valve is then actuated and air is introduced into the cylinder below piston 36, applying upward force to pin 12. When the latter is heated sufficiently to soften the solder joint, the force applied by piston 36 enables pin 12 to be pulled from board 14.

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