Multi-screw local flexible drawing and pressing integrated device

Abstract

The invention relates to a multi-screw local flexible drawing and pressing integrated device, which aims to machine a forming metallic material on the same device by combining the drawing and mould pressing. The device comprises an upper movable stand, a pedestal, a fixed box and a multi-screw local flexible mechanism, wherein the mechanism consists of a plurality of screws, a universal force transmission member, a screw driving device, a threaded rotary movable head clamp and a telescopic diagonal stressing member; the screws are arranged on the two sides of the mould; each side is at least provided with more than two screws; the screws are connected with the pedestal and the fixed box through the universal force transmission member connected with the screws and at least one telescopic diagonal stressing member respectively; the pedestal is fixed on the fixed box; the screws are driven by the screw driving device arranged on the lower part of the pedestal; the threaded rotary movable head clamp is arranged on the screw and rotatably driven to move up and down by the screws; and the upper movable stand moves up and down along a box rail.

Description

technical field [0001] A multi-screw partially flexible pulling and pressing integrated device is used for the plastic forming of three-dimensional curved surface workpieces, and belongs to the field of mechanical engineering. Background technique [0002] At present, three-dimensional sheet parts can be partially realized by stretch forming, while most aircraft skin parts need stretch forming to complete. Stretch forming is mainly completed by stretching equipment. At present, most of the stretching machines of aircraft manufacturing companies are imported equipment, which are not only expensive, but also subject to export restrictions of foreign related technologies. Large or super large stretching machines cannot be imported, so large plates Stretch forming of parts is restricted. In recent years, several research institutions in China have done some research on drawing equipment, but no fundamental progress has been made. Thereby inventing a kind of drawing equipment w...

AI Technical Summary

Problems solved by technology

Stretch forming is mainly completed by stretching equipment. At present, most of the stretching machines of aircraft manufacturing companies are imported equipment, which are not only expensive, but also subject to export restrictions of foreign related technologies. Large or super large stretching machines cannot be imported, so large plates Stretch forming of parts is constrained

In recent years, several research institutions in China have done some research on drawing equipment, but no fundamental progress has been made.

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