| 摘要 |
PURPOSE: A spot welding machine is provided to ensure high welding quality by performing spot welding on both sides of a single product at the same time. CONSTITUTION: A spot welding machine comprises a welder frame(3) which is installed on a base frame(1), upper and lower frames(5,7) which are formed on the upper and lower sides of the welding machine frame, an upper welding gun(10) which drives an upper welding rod(15) with a cylinder(11) on the upper frame, and a lower welding gun(20) which is mounted on the lower frame and equipped with a lower welding rod(25). The lower welding rod is activated by a cylinder(21) on the leading end of the lower frame. One side of the lower welding gun is connected to the upper welding gun through an auxiliary cable(C3), thereby sharing the plus electrode of a power supplier(40). The spot welding machine also includes a jig unit(30) which is installed on the base frame to support an object and embedded with a ground block(31) grounding a welded-product.
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