Making process of curved surface with hole/column

Abstract

The making process of curved surface part with hole / column includes the conventional plane making process to form planar base plate and subsequent external force bending to form the curved surface. The planar base plate has the holes or column formed through conventional process and is made to have narrow slots in its edges and deformable cross sections in the partial thickness to separate the base plate into several blocks. Then, forces in controlled magnitudes and directions are applied onto the base plate to bend it into required curved surface shape. The said making process is simple.

Description

technical field [0001] The invention relates to a method for processing a curved surface, in particular to a method for manufacturing a curved surface with holes / cylindrical surfaces. Background technique [0002] In the prior art, curved surface products are generally processed by the following methods. For metal products, there are several categories such as mold casting method, mold stamping method, mold electric pulse forming method, mold simulation processing method, mold electroforming method and CNC machining direct forming method. For non-metallic products, there are several categories such as mold injection molding method, mold coating molding method, mold positive and negative pressure blowing and suction molding method, mold simulation processing method, and CNC machining direct molding method. [0003] However, all of the above-mentioned processing methods have the following disadvantages: the tooling molds required for the production of curved surface products ...

AI Technical Summary

Problems solved by technology

[0003] However, in all the above-mentioned processing methods, there are the following deficiencies: for example, the tooling molds required for the production of curved surface products are relatively complicated, the processing is difficult, and the processing cost is high.

Machining a through hole on a curved surface that has been formed generally requires a special drilling tool or punching method to achieve, but for the curved surface of a thinner material, most of its firmness cannot withstand the strong external force of hole processing, and the forming is easily damaged The curved surface of this kind of thin material has a high defective rate, and the cost is high, so it is difficult to industrialize, so this method is not suitable for the curved surface of this thin material

The second method is to open a through hole in the flat material in advance, and then mold the material into a curved surface. At this time, the through hole will be deformed during the molding process, and the columnarity of the hole will be deformed. There will also be changes, especially for surfaces with multiple holes or for thicker materials, the surface with holes processed in this way, the size of the holes is not accurate

For example: a multi-point LED cold light source used in a microscope is difficult to collect light because of the inconsistent directionality of the holes where the LED light source is located, so it cannot reach the ideal technical index; the existing tactical lighting LED cold light source, because of The dual functions of light concentrating and diffusion cannot be realized at the same time, and the method of replacing the entire lighting head is required to realize the dual functions of concentrating and diffusing, which is unreasonable and troublesome

Therefore, for some products that require the hole to have specific multi-directionality and the size of the hole to have a certain accuracy, none of the above products can be realized using the existing technology

Curved surface products with columns are similar to the above-mentioned curved surfaces with holes. For some products that require columns to have specific multi-directions and diameters with certain precision, none of the above products can be realized using existing technologies

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