Complex curved-surface steel sheet numerically-controlled flexible progressive forming equipment and forming method

Abstract

The invention belongs to the technical field of complex curved-surface steel sheet forming and discloses complex curved-surface steel sheet numerically-controlled flexible progressive forming equipment and a forming method. The forming equipment comprises a forming machine tool body, a supporting and adsorption device for performing step-by-step progressive machining and forming on a metal sheet and a tool pressing head set. The supporting and adsorption device comprises a supporting frame, adsorption components for adsorbing the metal sheet and supporting components for adjusting displacement of the adsorption components. The complex curved-surface steel sheet numerically-controlled flexible progressive forming equipment is adopted for the forming method. The method comprises the following steps that a machined piece is divided into a plurality of segments, and the tool pressing head set and the supporting and adsorption device act on the two sides of all segments of the machined piece correspondingly in sequence in a progressive manner. By means of the complex curved-surface steel sheet numerically-controlled flexible progressive forming equipment and the forming method, the metal sheet of multiple shapes can be machined, the structure is stable and reliable, operability is high, machining efficiency is higher, the requirement for the skilled degree of operation workers is low, and the quality of a finished product is high.

Description

technical field [0001] The invention belongs to the technical field of forming complex curved steel plates, and in particular relates to a numerically controlled flexible progressive forming equipment and a forming method for complex curved steel plates. Background technique [0002] The processing of steel plates with complex curved surfaces, such as the processing of steel plates with complex curved surfaces for hulls, is one of the key links in shipbuilding. The streamlined curved surface enables the ship to have good propulsion performance and a three-dimensional curved surface with the least resistance, so that the hull can obtain sufficient support. The buoyancy of self-weight and load capacity ensures the economy of ship navigation. For the processing of metal sheets with complex curved surfaces, the existing technologies mainly include mechanical stamping technology, water and fire bending technology, and multi-point forming technology of sheet materials. [0003] T...

AI Technical Summary

Problems solved by technology

In addition, the working environment of this processing technology is harsh, and the one-time forming rate of the metal sheet is low, so it is difficult to achieve precision control

[0005] The multi-point forming process of sheet metal is a new type of processing method for processing and forming complex curved sheets. It is still in the experimental research stage and has not yet entered the field of actual production and processing.

Since the forming device needs to simulate the shape of the upper and lower molds of the traditional mold on the tool head and the support table before stamping, the structure of the forming device is relatively complicated, and the production cost is relatively high, which cannot be applied to complex metal sheets with large sizes and multiple batches. Forming processing, narrow scope of application

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