| 摘要 |
PURPOSE: A gantry welding system is provided to have a 5-axis degree of freedom by adding a new axis-structure to a conventional gantry welding system having a 4-axis structure. CONSTITUTION: A gantry welding system comprises a body having a pair of supporting legs(10a,10b) and a horizontal frame(11) for connecting the supporting legs(10a,10b) to each other such that the supporting legs(10a,10b) have a substantially reversed U-shape. The supporting legs(10a,10b) are slidably placed on a pair of rails(20a,20b). A transverse moving bar(30) is installed on the horizontal frame(11) such that the transverse moving bar(30) transversely moves along the horizontal frame(11). A moving device(31) is fixed to a lower portion of the transverse moving bar(30) in such a manner that the moving device(31) moves up and down. A horizontal rotating section(32) is coupled to the moving device(31). A vertical rotating section(33) is coupled to a lower end of the horizontal rotating section(32). A welding robot(50) is fixed to the vertical rotating section(33) to weld an object(40).
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