Angle adjusting device for pipe bending

The utility model discloses an angle adjusting device for pipe bending. The angle adjusting device comprises a pipe clamping die holder, wherein a boss-shaped pipe clamping die is arranged on one axial side of the pipe clamping die holder; a pipe groove matched with a pipe fitting in diameter is formed in the pipe clamping die; a plurality of longitudinal grooves are formed in the circumference of the outer wall of the pipe clamping die; the groove is communicated with the radial outer side of the pipe groove and the that of the pipe clamping die; a boss-shaped die groove is formed in the pipe clamping die holder; one end of the pipe clamping die is embedded into the die groove; a gap is formed between the bottom surface of the pipe clamping die and the pipe clamping die holder; the conical degree of the pipe groove is slightly greater than that of the die groove; a screw rod is arranged at one end of the pipe clamping die in the pipe clamping die holder; the screw rod is in threaded connection with a nut aft