Small bend radius elbow manufacturing device

The utility model discloses a manufacturing device for a bent pipe with a small bending radius. A bent pipe mold is arranged, and the bent pipe mold is fixedly connected with a spindle; the spindle is connected with a driving mechanism; the outer cambered surface of the bent pipe mold is provided with a groove for the placement of a pipe; a pipe clamping block is arranged below the bent pipe mold; a pressing roller wheel is arranged below the bent pipe mold; the pressing roller wheel is connected with a pressing roller wheel rack; the surface of the pressing roller wheel is provided with a groove which is matched with a pipe. The utility model has reasonable structure; by the reverse deformation principle that before a steel pipe is bent and deformed, the pressing roller wheel first applies pressure on the steel pipe so that the outer side of the steel pipe is deformed outwards and convexly, in the process of bending, convex deformation can counteract elliptical deformation after bending so that the pipe is also circular in the bending part. Product quality is good.