Versatile-position guide rail used for cutting and welding automatic trolley

The utility model relates to a versatile-position guide rail used for cutting and welding an automatic trolley. The guide rail is characterized in that the guide rail comprises a keel and connecting supports for supporting the keel, the keel is in the shape of an arc and is made of precision springs, each connecting support and the keel are connected through a single contact point, and one side of the keel is coated with rubber bodies. In use, the precision springs are adopted as the keel, and the connecting supports are fixed to the keel and integrally formed with the rubber bodies. The guide rail meets the requirement for the weight borne by the trolley and can be fully bent so that the guide rail can be close to a multi-dimension curve well, and the requirement in work is met. A single-screw fixing structure is adopted so that the curve of the guide rail is not affected by fixation, the radian can be smoother, and adjustment and connection become easy through a simple structure.