Metal panel variable rate forming device and method based on shear thickening liquid

Abstract

The invention discloses a metal panel variable rate forming device and method based on shear thickening liquid, and relates to a metal panel type flexible forming device and method so as to solve the problem that during existing metal panel rigid die or soft die forming, loads exerted on metal panels cannot adapt to the panel shape, and the controllable change cannot be achieved. In the device, a containing frame is vertically right opposite to a female die, a head part of a variable speed plunger is located in an inner cavity of the containing frame, and an inner cavity composed of the lower surface of the variable speed plunger and the inner wall of the containing frame is filled with the shear thickening liquid. The method comprises the steps that firstly, a metal panel is arranged between the lower surface of the containing frame and the upper surface of the female die; secondly, the part between the upper surface of the metal panel and the lower surface of the variable speed plunger is filled with the shear thickening liquid; thirdly, according to the shape of the metal panel and loads needed in various forming stages, the load speed and time relation curve of the variable speed plunger is determined; fourthly, the variable speed plunger downwards moves according to the set load speed and time relation, the shear thickening liquid is driven to act on the metal panel, and the needed shape is formed for the metal panel under the proper load condition; and fifthly, the formed metal panel is taken out. The metal panel variable rate forming device and method are suitable for metal panel forming.

Description

technical field

[0001] The invention relates to a metal sheet flexible forming device and method, in particular to a metal sheet variable rate forming device and method based on a shear thickening liquid. Background technique

[0002] Sheet metal forming technology occupies a pivotal position in the industrial field. With the continuous development of modern industrial technology and the emergence of problems such as resources and the environment, higher and higher requirements and challenges are put forward for traditional sheet metal forming technology: on the one hand , in order to achieve product lightweight and structural integration, it is necessary to use metal sheets with thinner walls to form parts with more complex shapes, higher dimensional accuracy, more uniform wall thickness distribution, and better surface quality; on the other hand, it is required to The traditional sheet metal forming process is improved to meet the forming requirements of high-strength, low...

Examples

specific Embodiment approach 1

[0019] Specific implementation mode one: combine figure 1 Describe this embodiment, this embodiment comprises variable speed plunger 1, container frame 2, shearing thickening liquid 3 and die 5, container frame 2 and die 5 are arranged up and down, the head of variable speed plunger 1 Located in the inner cavity of the container frame 2 , the shear thickening fluid 3 is filled in the inner cavity formed by the lower surface of the variable speed plunger 1 and the inner wall of the container frame 2 .

specific Embodiment approach 2

[0020] Specific implementation mode two: combination Figure 1~Figure 4 Describe this implementation mode, this implementation mode is realized through the following steps:

[0021] Step 1. Place the sheet metal part 4 to be formed between the lower surface of the container frame 2 and the upper surface of the die 5, and clamp the sheet metal part 4 to be formed;

[0022] Step 2, filling the shear thickening liquid 3 between the upper surface of the sheet metal part 4 to be formed and the lower surface of the variable speed plunger 1;

[0023] Step 3, according to the shape of the sheet metal part 4 to be formed and the size of the load required for each stage of forming, determine the loading speed and time relationship curve of the variable speed plunger 1;

[0024] Step 4: The variable speed plunger 1 moves downward according to the relationship between the set loading speed and time, driving the shear thickening fluid 3 to act on the sheet metal part 4 to be formed, so th...

specific Embodiment approach 3

[0026] Specific implementation mode three: combination Figure 1~Figure 4 Describe this embodiment, this embodiment is that the shear thickening liquid in step 2 is cornstarch-water suspension or SiO 2 Colloidal Nanoparticles - Ethylene Glycol Solution. Other steps are the same as in the second embodiment.

technical field

[0001] The invention relates to a metal sheet flexible forming device and method, in particular to a metal sheet variable rate forming device and method based on a shear thickening liquid. Background technique

[0002] Sheet metal forming technology occupies a pivotal position in the industrial field. With the continuous development of modern industrial technology and the emergence of problems such as resources and the environment, higher and higher requirements and challenges are put forward for traditional sheet metal forming technology: on the one hand , in order to achieve product lightweight and structural integration, it is necessary to use metal sheets with thinner walls to form parts with more complex shapes, higher dimensional accuracy, more uniform wall thickness distribution, and better surface quality; on the other hand, it is required to The traditional sheet metal forming process is improved to meet the forming requirements of high-strength, low...

Examples

specific Embodiment approach 1

[0019] Specific implementation mode one: combine figure 1 Describe this embodiment, this embodiment comprises variable speed plunger 1, container frame 2, shearing thickening liquid 3 and die 5, container frame 2 and die 5 are arranged up and down, the head of variable speed plunger 1 Located in the inner cavity of the container frame 2 , the shear thickening fluid 3 is filled in the inner cavity formed by the lower surface of the variable speed plunger 1 and the inner wall of the container frame 2 .

specific Embodiment approach 2

[0020] Specific implementation mode two: combination Figure 1~Figure 4 Describe this implementation mode, this implementation mode is realized through the following steps:

[0021] Step 1. Place the sheet metal part 4 to be formed between the lower surface of the container frame 2 and the upper surface of the die 5, and clamp the sheet metal part 4 to be formed;

[0022] Step 2, filling the shear thickening liquid 3 between the upper surface of the sheet metal part 4 to be formed and the lower surface of the variable speed plunger 1;

[0023] Step 3, according to the shape of the sheet metal part 4 to be formed and the size of the load required for each stage of forming, determine the loading speed and time relationship curve of the variable speed plunger 1;

[0024] Step 4: The variable speed plunger 1 moves downward according to the relationship between the set loading speed and time, driving the shear thickening fluid 3 to act on the sheet metal part 4 to be formed, so th...

specific Embodiment approach 3

[0026] Specific implementation mode three: combination Figure 1~Figure 4 Describe this embodiment, this embodiment is that the shear thickening liquid in step 2 is cornstarch-water suspension or SiO 2 Colloidal Nanoparticles - Ethylene Glycol Solution. Other steps are the same as in the second embodiment.

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