A device and method for precision forming of sheet material controlled by sub-area soft mold

A precision forming and sub-regional technology, applied in the field of sheet metal forming, to achieve the effect of reducing difficulty, increasing application value, and improving the formability of sheet metal

Active Publication Date: 2019-08-06
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the requirement of regional differences in soft mold performance in the forming of magnetorheological fluid soft molds with complex shapes, and to provide a precision forming device and method for regional soft mold regulation and control of plates by using combined coils and combined iron cores

Method used

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  • A device and method for precision forming of sheet material controlled by sub-area soft mold
  • A device and method for precision forming of sheet material controlled by sub-area soft mold

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A device for precise forming of plates controlled by sub-regional soft molds, including a first iron core assembly, a die 3, a first coil 4-1, a second coil 4-2, a plate 5, a magnetorheological fluid 6, a plunger cylinder, Plunger, medium cylinder 10, second iron core assembly;

[0031] The bottom of the medium cylinder 10 is closed, the upper part is provided with an opening, the plunger cylinder and the medium cylinder 10 are connected, the plunger is installed in the plunger cylinder, the magnetorheological fluid 6 is filled in the inner cavity of the medium cylinder 10 and the plunger cylinder, and the die 3 is located above the medium cylinder 10, and the plate to be formed is clamped between the die 3 and the medium cylinder 10;

[0032] The die 3 is provided with a first coil 4-1, the second coil 4-2 is located below the medium cylinder and corresponding to the first coil 4-1, the first iron core assembly is located inside the first coil 4-1, and the second The ...

Embodiment 2

[0045] Such as figure 1As shown, a sub-area soft mold control plate precision forming device includes a first cylindrical iron core 1-1, a first annular iron core 2-1, a die 3, a first coil 4-1, a plate 5, and a magnetic current Liquid changing 6, first plunger cylinder 7-1, first sealing ring 8-1, first plunger 9-1, medium cylinder 10, second cylindrical iron core 1-2, second annular iron core 2-2 and a second coil 4-2;

[0046] The medium cylinder 10 is closed at the bottom and open at the top, and is provided with a bead holder. There are two round holes on the side wall, which are connected with the first plunger cylinder 7-1 and the second plunger cylinder 7-2. The die 3 is located above the medium cylinder 10, and the plate to be formed is clamped between the die 3 and the medium cylinder 10. An annular groove is provided inside the die 3, and the first coil 4-1 is placed inside, and the second coil 4-2 and The first coil 4 - 1 is placed correspondingly and is located ...

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Abstract

The invention discloses a regional soft mold regulation board precise forming device and method, and belongs to the technical field of board forming. Magnetorheological fluid is injected into a plunger type cylinder, a pressure machine exerts pressure, the configuration need for the pressure machine can be simplified, the position interference of a mold and an edge pressing device to a magnetorheological fluid injecting cylinder is avoided, and the mold assembling difficulty is reduced; in addition, through application of a combined coil and an iron core assembly, in the forming process, the distance between the current and an iron core can be adjusted, the regionalization magnetic field strength is changed, the soft mold properties of different forming regions can adapt to the stress state needs of the board, material flowing can be promoted, fine control in the forming process can be achieved, the board forming and part forming quality are improved. The device and method have the large application value in precise forming of a complex thin-wall component.

Description

technical field [0001] The invention relates to the technical field of plate forming, in particular to a device and method for precise forming of plates controlled by sub-area soft molds. Background technique [0002] With the rapid development of aviation, aerospace and automobile and other fields, the manufacturing of sheet metal parts is gradually developing towards the trend of lightweight, high precision and low cost. Because such components have complex shapes, thin walls, integrated forming, and difficult materials to form, traditional forming techniques are prone to uneven deformation, cracking or wrinkling defects, which restricts the wide application of such components. [0003] The sheet metal magnetorheological fluid soft mold forming method is a new soft mold forming method, which uses intelligent materials - magnetorheological fluid, provides a magnetic field through coils or permanent magnets, etc., and changes the characteristics of the magnetorheological flu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21D26/14B21D26/021
CPCB21D26/021B21D26/14
Inventor 王朋义赵小凯何乃如
Owner SHAANXI UNIV OF SCI & TECH
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