Robot welding gun unit
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United States of America Patent
Stats
-
May 13, 1997
Issued Date -
N/A
app pub date -
Sep 21, 1995
filing date -
Oct 20, 1993
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A robot welding gun comprises a welding gun mounting bracket provided at the tip end of a robot arm, a cylinder unit incorporated in the bracket for adjusting the position of a fixed arm, a rod which is rotated or moved forward or backward by the cylinder unit and is connected to the fixed arm and a gun body which include the arm and is slidably mounted on the mounting bracket. As a result, it is possible to eliminate the variation of movement of the welding gun caused by the robot by adjusting the position of the welding gun relative to the fixed arm in accordance with the wearing amount of an electrode of the welding gun on the side of the fixed arm to always keep the same in contact with a surface of a weldment so as to provide a robot welding gun unit easy in control and capable of safe and accurate welding without generating distortion in the weldment.
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