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Quality status display for a vibration welding process

United States Patent

March 28, 2017
View the Complete Patent at the US Patent & Trademark Office
A system includes a host machine and a status projector. The host machine is in electrical communication with a collection of sensors and with a welding controller that generates control signals for controlling the welding horn. The host machine is configured to execute a method to thereby process the sensory and control signals, as well as predict a quality status of a weld that is formed using the welding horn, including identifying any suspect welds. The host machine then activates the status projector to illuminate the suspect welds. This may occur directly on the welds using a laser projector, or on a surface of the work piece in proximity to the welds. The system and method may be used in the ultrasonic welding of battery tabs of a multi-cell battery pack in a particular embodiment. The welding horn and welding controller may also be part of the system.
Spicer; John Patrick (Plymouth, MI), Abell; Jeffrey A. (Rochester Hills, MI), Wincek; Michael Anthony (Rochester, MI), Chakraborty; Debejyo (Sterling Heights, MI), Bracey; Jennifer (Holly, MI), Wang; Hui (Highland, MI), Tavora; Peter W. (Sterling Heights, MI), Davis; Jeffrey S. (Grand Blanc, MI), Hutchinson; Daniel C. (Goodrich, MI), Reardon; Ronald L. (Fenton, MI), Utz; Shawn (Washington Township, MI)
GM Global Technology Operations LLC (Detroit, MI)
13/ 624,233
September 21, 2012
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT This invention was made with U.S. Government support under an Agreement/Project DE-EE0002217, Department of Energy Recovery and Reinvestment Act of 2009, Battery Pack Manufacturing B511. The U.S. government may have certain rights in this invention.