| 摘要 |
An exchanging apparatus for exchanging welding jig units of an automatic welding apparatus on an assembly line. The automatic welding apparatus includes a combining station where a work to be assembled is combined and welded by detachable welding jig units, and a set carrier for moving the work along a conveying railway to and from the combining station. The exchanging apparatus comprises an exchanging railway which crosses the conveying railway through a switch mechanism and at least two exchanging carriers, each having thereon a gripping means for gripping a welding jig unit. Each of the above carriers is mounted on a plurality of wheels, each of which is turnable about a fixed vertical shaft on the respective carrier. The switch mechanism comprises turnable rail portions at the crossing points of the two railways, a rail fixing device for fixing the portions at their switched positions, and a carrier fixing device for positioning and fixing any one of the carriers while the rail portions are turned thereunder. |
