Once forming stamping method of double-parabolic plate with consistent thickness

Abstract

The invention relates to a once forming stamping method of a double-parabolic plate with consistent thickness. The forming stamping method includes the following steps that A, establishing a three-dimensional curve surface model of an upper mould surface of the double-parabolic plate; B, selecting a process base surface on the three-dimensional curve surface model; C, carrying out lofting treatments, obtaining data of the upper mould surface, the data of the upper mould surface is served as a mould dummy plate and a periphery plate linetype of the upper mould; D, adding thickness of the plate to obtain a lower mould surface curve surface model, and carrying out lofting treatments, obtaining the data of the lower mould surface linetype, and the data of the lower mould surface linetype is served as the mould dummy plate and the periphery plate linetype of the lower mould; E, obtaining the mould dummy plates and the periphery plate linetypes of the upper mould and the lower mould to manufacture the upper mould and the lower mould according to the step C and the step D; F, finishing the once forming stamping manufacture of the upper mould and the lower mould by a press driven. The once forming stamping method of the double-parabolic plate with consistent thickness is simple in step, short in elapsed time, high in accuracy, capable of achieving easily large-scale mass manufacturing production.

Description

Technical field: [0001] The invention relates to the technical field of metal pressing, in particular to a compression molding method for one-time forming of a hyperbolic plate with uniform thickness. Background technique: [0002] Plates with horizontal and vertical two-way curved lines, that is, hyperbolic plates are widely used in the shipbuilding process, such as ship outer plates, shrouds and other parts. With the improvement of shipbuilding level, the accuracy requirements of hyperbolic plates are also increasing. It is getting more and more attention from the shipbuilding industry. [0003] The existing processing method of hyperbolic plate mainly adopts single-point mechanical cold pressing, and then performs water and fire bending plate correction treatment on it. The specific steps are: first determine the transverse and longitudinal alignments of the hyperbolic plate, and use a single-point hydraulic press to cold-press the alignment of the sheet to be processed ...

AI Technical Summary

Problems solved by technology

[0005] 1. The processing process is divided into two steps: mechanical cold pressing and water-fire bending plate correction, and the two steps are independent of each other, it is difficult to ensure that each processing step achieves the expected processing purpose, and the processing personnel in the two steps need to have high coordination;

[0006] 2. Water-fire bending plate correction takes a long time, prolongs the overall progress of plate processing, and is highly dependent on the technical ability of water-fire bending plate correction operators, and the labor cost is high, making it difficult to form large-scale processing and production;

[0007] 3. Water and fire bending plate correction greatly reduces the plasticity of the plate, increases the brittleness of the plate, changes the mechanical properties of the plate, reduces the durability of the plate, and shortens the service life of the plate;

[0008] 4. This processing method is greatly affected by human factors, and it is difficult to guarantee the production accuracy and production yield of the product, which greatly affects the forming efficiency of the hyperbolic plate

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