Spot Welding Method and Spot Welding System
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United States of America Patent
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N/A
Issued Date -
Dec 10, 2009
app pub date -
Apr 27, 2006
filing date -
Apr 28, 2005
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A spot welding system and method where pressing force of a welding electrode applied by driving a servomotor is accurately controlled. The spot welding system has a pair of welding electrodes, a servomotor (2) for driving the welding electrodes and clamping and pressing an article (12) to be welded, and a controller (100) for controlling the welding electrodes and operation of the servomotor. A pressing force detector (3) is provided in order to measure pressing force actually applied to the article (12) to be welded. The controller (100) regulates a driving current to the servo motor (2) based on the measurement value of the pressing force detector (3), controlling the pressing force applied to the article (12).
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