Three-dimensional design method and system for piercing knife of vehicle stamping die

Abstract

The invention provides a three-dimensional design method and system for a piercing knife of an vehicle stamping die. The method comprises the steps: obtaining the cutting edge line data of the piercing knife and the design requirements of the piercing knife, and the design requirements of the piercing knife comprise the shape parameter requirements of the piercing knife and the design style requirements of a flange; according to the design requirement of the piercing knife, the cutting edge line is roughly biased, and the cutting edge line which is roughly biased is optimized; constructing shape parameters of the piercing knife and flange style data; obtaining three-dimensional entity data of the piercing knife according to the constructed shape parameters and the flange style data; according to the method and the device, the cutting edge line is roughly biased and the roughly biased cutting edge line is optimized according to the design requirements of the piercing knife, so that the accuracy of the shape parameters of the constructed piercing knife and the accuracy of the flange style data are greatly improved, and the design quality of the piercing knife is improved; Meanwhile, the mode that the knife is punctured by splicing is avoided, and the design efficiency is improved.

Description

technical field [0001] The disclosure belongs to the technical field of computer-aided design, and in particular relates to a three-dimensional design method and system for a puncture knife used in an automobile stamping die. Background technique [0002] The design and manufacturing process of automobile stamping parts mainly includes: obtaining the original surface model, and stamping according to the stamping process. It is necessary to puncture the part of the curved surface first, so as to avoid tearing of the digital model caused by the tension of the digital model during the stamping process. [0003] At present, large and medium-sized mold companies generally spend a long time designing piercing knives with cutting edge lines. The labor intensity of workers is high, time-consuming and laborious, and the production efficiency is low. , The adjustment of the facade and the flange is not in place, and there are problems such as insufficient puncture or excessive punctur...

AI Technical Summary

Problems solved by technology

[0003] At present, large and medium-sized mold companies generally spend a long time designing piercing knives with cutting edge lines. The labor intensity of workers is high, time-consuming and laborious, and the production efficiency is low. , The adjustment of the facade and flange is not in place, and there are problems such as insufficient puncture or excessive puncture

The reasons for the inadequacy of the puncture or the excessive amount of puncture are;

[0004] The inventors of the present disclosure have found that the current mainstream 3D CAD software lacks a targeted piercing knife design function that meets the mold design requirements, and designers usually design the piercing knife in a patchwork manner, which is not only inefficient, but also difficult to guarantee quality accuracy

Images