Modular bending die and bending method for aluminum profile

Abstract

The invention relates to a modular bending die and bending method for an aluminum profile. The bending die comprises an upper die base, a lower die base, a female die, a male die and a CAE analysis system; the CAE analysis system is used for designing parameters of the male die and the female die in combination with rebound compensation analysis, the male die and the female die are machined according to the parameters; the male die is arranged at the bottom of the upper die holder, the female die is arranged on the lower die holder, and the male die and the female die are oppositely arranged up and down; the female die is of a block structure and consists of a plurality of female die modules; a groove is formed in the female die, the aluminum profile is arranged on the groove, and the female die and the male die bend the aluminum profile according to stamping parameters set by the CAE analysis system; and the female die modules can be used for independently die repairing according to rebound amount of the aluminum profile. According to the modular bending die for the aluminum profile, the repeated die repairing process due to the fact that the difficulty of adjusting the rebound amount during bending forming of the aluminum profile is large is solved, the independent die repairing is realized, the die development period and cost are reduced, the production efficiency is improved, the debugging period is shortened, and the flexibility of the die is improved.

Description

technical field [0001] The invention relates to the field of aluminum profile bending technology, in particular to a modular aluminum profile bending die and a bending method. Background technique [0002] At present, with the advancement of automobile lightweight, the space frame structure with aluminum alloy extruded profiles as the main body has broad development prospects in terms of cost and safety. However, the profiles made by the traditional aluminum profile bending process are prone to defects such as springback, cross-sectional distortion, and surface scratches. At the same time, large-scale equipment is required, resulting in high cost and low production efficiency. It has become one of the bottlenecks restricting the lightweight of automobile body structures. . [0003] Because the forming precision of the stretch bending process is high, it is the most widely used profile bending process in the industry. For more and more aluminum alloy profiles, especially 608...

AI Technical Summary

Problems solved by technology

However, the current bending process has the following problems: 1) Insufficient positioning of the mold, resulting in poor forming accuracy; 2) Large amount of bending springback, which is not easy to control

However, the current bending forming molds have low versatility and poor flexibility. It is difficult to adjust and control the problem of bending springback, and when the mold needs to be corrected, it is often necessary to process the entire concave and convex mold, resulting in high mold production and processing costs and long debugging cycles.

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