Method of controlling spot welding robot
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United States of America Patent
Stats
-
Sep 12, 1995
Grant Date -
N/A
app pub date -
Mar 3, 1994
filing date -
Jul 6, 1992
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Before executing a spot welding by a robot, a pressurization command is issued to a welding gun to measure the time required before receiving a pressurization completion signal from a welding gun. Thus measured value is set and stored as a time (T0) required for pressurization. Then, in executing a spot welding, the time in second (T) required to complete the positioning of the robot after the start thereof is calculated. Thus, based on these calculations, a time to start the pressurization of the welding gun is determined so that the time of completing the pressurization of the welding gun coincides with the time of completing the positioning of robot. As a result, no waiting time is required after the completion of positioning, thereby reducing the operating time.
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