Metal plate material hydraulic shaping method and its mould device

A technology of hydroforming and sheet metal, which is applied in the direction of forming tools, metal processing equipment, manufacturing tools, etc., can solve the problems that the rigid punch cannot enter the concave die, the mold and welding device are complex, and cannot be integrally formed at one time, so as to achieve enhanced new Product development capabilities, significant economic benefits, and ingenious design effects

Inactive Publication Date: 2005-01-05
GUANGDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Traditional rigid convex and concave forming molds, when forming parts such as automobile panels and motorcycle fuel tank shells, because such parts have necks, the rigid convex mold cannot enter the concave mold, so it cannot be integrally formed at one time, and has to be used Two sets of moulds, separate the whole fuel tank into left and right halves and form them respectively, then cut the edges and weld them
Its disadvantages are that not only the number of steps in the forming process is large, the mold and welding device are complicated, and the welding process requires high requirements, but also there is a hidden danger of cracking and oil leakage at the weld when the motorcycle is overturned.

Method used

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  • Metal plate material hydraulic shaping method and its mould device
  • Metal plate material hydraulic shaping method and its mould device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] The hydroforming method of sheet metal of the present invention comprises the steps:

[0022] 1) First fill the hydraulic chamber (8) with hydraulic oil;

[0023] 2) placing the sheet material (3) to be formed between the hydraulic chamber (8) and the die (2);

[0024] 3) die (2) descends;

[0025] 4) Apply blank-holding and clamping force F to the sheet (3) and die (2);

[0026] 5) The high-pressure liquid with a filling pressure of P makes the sheet material to be deep-drawn and deformed under the action of the high-pressure liquid, and it is formed into the shape of the required part close to the surface of the concave mold cavity.

[0027] The structure diagram of hydroforming mold device of the present invention is as figure 1 Shown, comprise upper formwork (1), die (2), hydraulic pressure plate (5), make on the die (2) have the concave mold cavity (9) that is consistent with the part shape to be formed, hydraulic pressure plate (5) ) is made with a hydraulic c...

Embodiment 2

[0033] The hydroforming method of the sheet metal of the present invention is the same as that of Embodiment 1. The structure schematic diagram of hydroforming mold device of the present invention is as shown in Figure 2, and its structure is identical with embodiment 1, and difference is that die (2) is used for forming the part of band necking, and is made on die (2) The position of necking, for this reason, die (2) is made to comprise the insert body die (2a, 2b) that can separate left and right.

[0034] The processing of this embodiment is the same as that of Embodiment 1.

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PUM

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Abstract

A hydraulic shaping method for metal plate includes such steps as filling hydraulic oil in hydraulic chamber, arranging the metal plate material to be shaped between hydraulic chamber and female die, moving female die down, applying force to plate and female for pressing edge and locking die, and filling high-pressure liquid to deform the metal plate. Its hydraulic die set is composed of upper die plate, female die and hydraulic plate.

Description

1. Technical field: [0001] The invention relates to a metal plate hydroforming method and a mold device thereof, which belong to the innovative technology of the metal plate hydroforming method and the mold device thereof. 2. Background technology: [0002] Traditional rigid convex and concave forming molds, when forming parts such as automobile panels and motorcycle fuel tank shells, because such parts have necks, the rigid convex mold cannot enter the concave mold, so it cannot be integrally formed at one time, and has to be used Two sets of molds are used to separate the whole fuel tank into left and right halves and form them respectively, then cut the edges and weld them. Its disadvantages are not only many steps in the forming process, complex molds and welding devices, high welding process requirements, but also hidden dangers of rupture and oil leakage at the weld when the motorcycle is overturned. 3. Contents of the invention: [0003] The object of the present i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D22/20B21D24/14B21D37/10B21D37/12
Inventor 阳林孙友松章争荣陈绮丽刘易凡潘晓涛黄诗君
Owner GUANGDONG UNIV OF TECH
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