Automated Table Apparatus for Welding Heavy Steel Corner of Sealed Wall for Liquefied Natural Gas Tank

摘要

According to the present invention, an automatic welding table device of a heavy steel corner for a barrier of a liquefied natural gas tank comprises: a lower rotary table rotated on a lower rotary shaft and rotated by a lower table rotating unit installed in the lower part; an upper rotary table rotated by a rotary module installed at the center of the lower rotary table and having a linear bearing installed on the top; a first stiffener fixing unit; and a second stiffener fixing unit. The first stiffener fixing unit is installed in the linear bearing of the upper rotary table to linearly move and comprises: a first primary holding part; a first hinge arm coupled to be rotated; and a first clamp installed in one side of a primary which is held on the first primary holding part by the first hinge arm to clamp a first stiffener. The second stiffener fixing unit is installed on the linear bearing of the upper rotary table to linearly move and comprises: a second primary holding part; a second hinge arm coupled to be rotated; and a second clamp installed in the other side of the primary which is held on the second primary holding part by the second hinge arm to clamp a second stiffener.