Punch height regulation method for multi-point forming processing of curve surfaces

Abstract

The invention discloses a punch height regulation method for multi-point forming processing of curve surfaces, and belongs to the technical field of multi-point forming. An OpenGL technology is adopted to display an STL curve surface, contact points and punches in the same coordinate system, the data of triangular patches is read by Visual C++, the position of the punch is searched and calculated in a constructive rectangle A1A2A3A4, and meanwhile calculation of the triangular patch for forming the curve surface to be processed in a three-dimensional space is converted into calculation of a triangle in a two-dimensional space, the traditional punch height regulation calculation method is simplified, calculation is more intuitive and simpler, software control is easier to perform, the program readability is good, and thus the forming precision and the processing efficiency of the curved surface are improved.

Description

technical field [0001] The invention relates to a curved surface forming process, in particular to a punch shape adjustment method for multi-point forming and processing curved surfaces. Background technique [0002] Multi-point forming is a digital manufacturing technology that combines computer technology and flexible forming. This technology utilizes the flexibility of numerical control technology and the flexibility of multi-point forming equipment to form different curved surfaces without changing the mold, so as to realize moldless, fast and low-cost production. Compared with the commonly used fixed mold forming or manual forming, the moldless multi-point forming technology has the advantages of significantly shortening the production preparation cycle, saving a lot of mold manufacturing costs, and forming large-area curved surfaces in sections with small equipment. [0003] Multi-point forming uses the enveloping surface of the upper and lower punch groups arranged r...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the shortcomings of the existing punch shape adjustment method for multi-point forming and processing curved surfaces, such as complicated punch height calculation, poor program readability, and difficult software implementation, and to provide a punch adjustment method for multi-point forming and processing curved surfaces. Shape method, adopting the technical scheme of the present invention simplifies the existing punch shape adjustment calculation method, and adopts a more intuitive and concise calculation method, which makes it easier to realize software control, and the program has good readability, less calculation, and improves the accuracy of the curved surface. Forming accuracy and processing efficiency

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