Novel rear positioning pipe end clamping die

The utility model discloses a novel rear positioning pipe end clamping die which comprises a clamping die body, a rear positioning block, a first hexagon socket cap screw, a clamping block and a second hexagon socket cap screw, the clamping die body is composed of two sets of symmetrical clamping die bodies, and symmetrical semicircular installation holes are formed in the connecting position of the upper clamping die body and the lower clamping die body. Mounting holes of the upper clamping die and the lower clamping die are internally connected with the clamping block through four sets of second hexagon socket cap screws, a protruding threaded mounting table is arranged in the center of the inner side of the lower clamping die, the threaded mounting table of the lower clamping die is connected with the rear positioning block through two sets of first hexagon socket cap screws, and the distance of the rear positioning block is adjusted through the first hexagon socket cap screws. According to the utility mod