Stamping device for punching long slotted holes in small-size steel pipe

The utility model provides a stamping device for punching long slotted holes in a small-size steel pipe. The stamping device is characterized by comprising a bottom plate, a lower die, a gasket, a die core, a fixing seat, a puncher pin, a die handle and a groove opening, wherein the gasket, the lower die and the fixing seat are mounted on the upper side of the bottom plate, and the groove opening is formed in the bottom plate; an operation hole is formed in the central position of the fixing seat and is internally provided with the die core; the die core is mounted on the upper sides of the gasket and the lower die; in a use process, the gasket jacks the outer diameter of the steel pipe to support the die core; the puncher pin is used for punching downward from the upper part in a stamping process to penetrate through the steel pipe so as to punch the long slotted holes in pipe walls on the two sides, and the punching success is ensured. According to the stamping device for punching the long slotted holes in the small-size steel pipe, original milling and flame cutting machining are changed into stamping machining, and the efficiency is extremely improved; compared with a previous method, the machining efficiency is improved by more than 10 times; residual materials ca be recycled so that resources are saved.