Plate material multi-point-die pre-drawing progressive compound forming method and plate material multi-point-die pre-drawing progressive compound forming device

A composite forming and incremental forming technology, applied in the field of material incremental forming, can solve the problems such as the difficulty of constraining and controlling the dimensional accuracy of parts, the complex flow and stress state of the sheet metal, and the difficulty in ensuring the uniformity of thickness distribution, so as to overcome the problems of sheet thickness distribution. Uneven, high forming efficiency, time saving effect

Active Publication Date: 2014-02-26
SHANGHAI JIAO TONG UNIV
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0003] Due to the complex flow and stress state of the sheet metal during progressive forming, it is difficult to constrain and control the dimensional accura

Method used

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  • Plate material multi-point-die pre-drawing progressive compound forming method and plate material multi-point-die pre-drawing progressive compound forming device
  • Plate material multi-point-die pre-drawing progressive compound forming method and plate material multi-point-die pre-drawing progressive compound forming device
  • Plate material multi-point-die pre-drawing progressive compound forming method and plate material multi-point-die pre-drawing progressive compound forming device

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[0033] Example

[0034] Such as Figure 1-Figure 4 As shown, a sheet metal multi-point die pre-drawing progressive composite forming device includes a bottom plate 1, a back pressure component, a die seat 3, a lifting cylinder 4, a rotary blank holder clamping structure, a multi-point die 8, and a guide column 10. , The drawing table 11, the vertical support 14, the six-degree-of-freedom movement mechanism 16 and the tool head 17, the back pressure assembly, the lifting cylinder 4, the guide column 10 and the mold seat 3 are all fixed on the bottom plate 1; The drawing table 11 is respectively connected with the lifting cylinder 4 and the guide column 10; the multi-point die 8 is arranged on the mold base 3 and is located under the drawing table 4; the back pressure component passes through the mold base 3 and Rotary clamping structure is connected; the rotating clamping structure is arranged on the deep drawing table 11; the vertical support 14 is vertically connected to one en...

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Abstract

The invention relates to a plate material multi-point-die pre-drawing progressive compound forming method and a plate material multi-point-die pre-drawing progressive compound forming device. The method includes that the shape of a pre-drawing multi-point die is adjusted according to the shape of a part needed to be processed; a plate material is fixed on a drawing workbench through a rotatable edge-pressing clamping structure, a lifting oil cylinder drives the drawing workbench to move downwards to set a distance, at the same time, back pressure oil cylinders provide back edge-pressing force, and the part is drawn to be in a needed shape through the pre-drawing multi-point die; the lifting oil cylinder drives the drawing workbench to move upwards to an initial position; a progressive-forming processing track is generated according to a three-dimensional model of the part needed to be processed and stored into an industrial robot; the rotatable edge-pressing clamping structure together with the plate material thereon rotate to a vertical position; a six-degree-of-freedom moving mechanism controls a tool head to perform progressive-forming processing on the plate material. Compared with the prior art, the method and the device have the advantages that die-free flexible forming of deep-cavity-type sheet metal parts can be realized, and high forming efficiency, easiness in realization of plate material progressive forming integration and the like are realized.

Description

technical field [0001] The invention relates to a material progressive forming technology, in particular to a sheet material multi-point die pre-drawing progressive composite forming method and a forming device. Background technique [0002] Incremental forming is a process method that uses incremental local deformation method to obtain parts with desired shape and performance requirements, and has attracted more and more attention in recent years. Compared with the traditional stamping forming method, it has the advantages of greater flexibility, saving the cost of complex mold manufacturing, and improving the forming performance of materials. Therefore, it is widely used in the production of parts with small batches and special requirements, such as light alloy (aluminum alloy, magnesium alloy, titanium alloy) parts with complex structures in the fields of automobile and aerospace manufacturing. [0003] Due to the complex flow and stress state of the sheet metal during i...

Claims

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Application Information

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IPC IPC(8): B21D22/22
Inventor 方阳陆彬陈军
Owner SHANGHAI JIAO TONG UNIV
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