| 摘要 |
PURPOSE: A welder auto-carriage for welding a curved face is provided to enable a buffer device automatically to regulate the height of a welding torch while moving along a welding face. CONSTITUTION: A coil spring for a buffer operation is installed in a cylinder for forming a buffer device main body. A wheel supporter is attached to the end of a cylinder rod. A wheel is attached to the inner part of the wheel supporter so that a buffer device(20) is formed. The buffer device is prepared in front of and behind an auto-carriage. Accordingly, as the height of the auto-carriage changes according to the height of a welding face, a distance between a torch and the welding face is uniformly kept.
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