Magnetorheological fluid flexible die forming device and magnetorheological fluid flexible die forming method for plates

A technology of magnetorheological fluid and rheological fluid, applied in the direction of presses, manufacturing tools, stamping machines, etc., to achieve the effects of broadening application fields, improving forming quality, and optimizing control

Active Publication Date: 2012-08-01
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In order to solve the problem that the existing hydroforming, semi-solid viscous medium pressure forming and polyurethane rubber forming are respectively suitable for a certain range of sheet metal

Method used

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  • Magnetorheological fluid flexible die forming device and magnetorheological fluid flexible die forming method for plates
  • Magnetorheological fluid flexible die forming device and magnetorheological fluid flexible die forming method for plates

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specific Embodiment approach 1

[0028] Specific implementation mode one: combine Figure 1 to Figure 8 This embodiment is described. A sheet material changing physical state soft mold forming device described in this embodiment includes a first magnetorheological fluid injection cylinder 1, a second magnetorheological fluid injection cylinder 2, a magnetorheological fluid container frame 3, a magnetic Rheological fluid 4, solenoid 5, die 6, blank holder cylinder 7, third magnetorheological fluid injection cylinder 8 and fourth magnetorheological fluid injection cylinder 9, magnetorheological fluid container frame 3, die 6 Arranged from top to bottom, the plate is located between the lower surface of the magnetorheological fluid container frame 3 and the upper surface of the die 6, the upper surface of the plate, the lower surface of the magnetorheological fluid container frame 3, the magnetorheological fluid container frame 3 The inner side walls of the two frames form a closed first inner cavity 3-2, the lo...

specific Embodiment approach 2

[0029] Specific implementation mode two: combination Figure 1 to Figure 8 To illustrate this embodiment, the magnetorheological fluid container frame 3 and the concave mold 6 of the plate magnetorheological fluid soft mold forming device described in this embodiment are both made of non-magnetic steel or austenitic stainless steel. Other components and connections are the same as those in the first embodiment.

specific Embodiment approach 3

[0030] Specific implementation mode three: combination Figure 1 to Figure 4 To illustrate this embodiment, the specific steps of a soft mold forming method for sheet metal magnetorheological fluid with magnetorheological fluid loaded on one side using the device described in Embodiment 1 described in this embodiment are as follows:

[0031] Step 1. Clamp the plate to be formed between the upper surface of the die 6 and the lower surface of the magnetorheological fluid container frame 3;

[0032] Step 2: Fill the first inner cavity 3-2 with the magnetorheological fluid 4. During the forming process, the first magnetorheological fluid is injected into the cylinder 1 and the second magnetorheological fluid is injected into the cylinder 2 into the first inner cavity 3-2. Inject magnetorheological fluid 4 into it;

[0033] Step 3. Determine the magnetic field strength B in the working area according to the shape of the plate to be formed and the action form of the soft mold.

[...

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Abstract

The invention relates to a plate forming device and a plate forming method, in particular to a magnetorheological fluid flexible die forming device and a magnetorheological fluid flexible die forming method for plates, which aims to solve the problem that existing hydraulic forming, semisolid viscous medium pressure forming and polyurethane rubber forming are suitable for certain plate forming range respectively and advantages of the three cannot be combined in a plate forming process. The forming device comprises a first magnetorheological fluid injection cylinder, a second magnetorheological fluid injection cylinder, a magnetorheological fluid container, magnetorheological fluids, solenoids, a die, a side pressing cylinder, a third magnetorheological fluid injection cylinder and a fourth magnetorheological fluid injection cylinder. During the forming process, the first magnetorheological fluid injection cylinder and the second magnetorheological fluid injection cylinder injects the magnetorheological fluids into a first cavity, magnetic field intensity of the magnetorheological fluids region is changed through regulating electricity, and then shapes needed of the plates to be formed can be formed. The magnetorheological fluid flexible die forming device and the magnetorheological fluid flexible die forming method for plates are applicable to the field of plate forming.

Description

technical field [0001] The invention relates to a plate forming device and method, in particular to a plate magnetorheological fluid soft mold forming device and method. Background technique [0002] Sheet metal forming plays an important role in manufacturing technology, especially for the lightweight of automobile structures and the improvement of the performance of aerospace, aviation and other vehicles. Among them, soft mold forming is one of the fastest-growing process methods in sheet metal parts manufacturing technology . The existing sheet metal hydroforming, semi-solid viscous medium pressure forming and polyurethane rubber forming each have their own advantages, and are respectively suitable for a certain range of sheet metal forming, such as hydroforming is suitable for circular, rectangular or special-shaped cross-section hollow structural parts that change along the axis of the component, etc. forming; semi-solid viscous medium pressure forming is suitable for ...

Claims

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Application Information

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IPC IPC(8): B21D26/021B21D26/14
CPCB30B1/42
Inventor 王忠金王朋义袁斌先
Owner HARBIN INST OF TECH
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