Large size sheet material shaping device with conformal combined type coils and large size sheet material shaping method

Abstract

The invention discloses a large size sheet material shaping device with conformal combined type coils and a large size sheet material shaping method. The large size sheet material shaping device withthe conformal combined type coils comprises a mold, a jacking plate which jacks a sheet material to a position above the mold and a pressing plate which presses the sheet material against the jackingplate, and further comprises a plurality of the combined type coils, wherein the combined type coils are laid above the sheet material, and the plurality of combined coils are arranged in the circumferential direction of the mold so as to form toroidal coil structures different in diameter size. The large size sheet material shaping device with the conformal combined type coils can improve deformation uniformity, shaping quality and shaping efficiency of the sheet material on the one hand, can form the toroidal coil structures different in diameter size through the splicing type combined coilsone the other hand, avoids the problem that multiple sets of conformal arrangement coils need to be manufactured at present, then can substantially reduce manufacture cost of the conformal combined type coils, meanwhile is suitable for methods of various electromagnetic shaping processes of first-stretch shaping and last-discharging or first-discharging and last-stretch shaping, improves processing flexibility, and enlarges application scope.

Description

technical field [0001] The invention relates to the technical field of material processing and forming, in particular to a large-size plate forming device and method provided with conformal combined coils. Background technique [0002] With the rapid development of high-tech industries such as aerospace, there is an urgent need to adopt large-scale integral thin-walled shells with very significant structural benefits in advanced aircraft, spacecraft, rockets, and missiles to reduce weight, increase the load-carrying capacity limit and range of the carrier, etc. overall performance. Large-scale, thin-walled, light-weight, high-precision, high-strength, and good fatigue-resistant parts are typical representatives, such as large tank heads of spacecraft, cruise missile cabin sections, aircraft and spacecraft hoods , sub-tank and engine housing, etc. [0003] At present, the plastic forming methods of large-scale plate components mainly include: spinning forming and sheet meta...

AI Technical Summary

Problems solved by technology

However, this technology has the following problems: (1) For the specific mold surface and the shape surface of the sheet after drawing, a separate set of coils is required to be arranged according to the shape, resulting in poor flexibility and narrow adaptability of the method; (2) coils The structure is tower-shaped, suitable for sheet metal forming that is pulled to form a certain slope

However, this method has the following problems: (1) forming large parts still requires processing multiple sets of coils with different diameters

It is difficult to apply to the situation where the sheet cannot be leveled or does not need to be leveled after discharge, so the adaptability is low

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