Integral type quenching mould for torsion beams of automotive rear axles

The utility model discloses an integral type quenching mould for torsion beams of automotive rear axles, and according to the integral type quenching mould, the quenching internal stress of the torsion beams is restricted to be released freely and the internal stress is regularly released according to the designed mould so as to achieve the aim of decreasing or eliminating deformation. The integral type quenching mould is suitable for high-strength steel tube-shaped beams and comprises an upper mould and a lower mould, wherein the upper mould corresponds to the concave surface sides of the high-strength steel tube-shaped beams; the lower mould corresponds to the convex surface sides of the high-strength steel tube-shaped beams; two of five fixed points of the upper mould are located at two ends of the upper moulds and the other three are located between the two ends of the upper mould; the fixed points of the upper mould are provided with convex surfaces which can be complementary with the concave surface sid