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Electromagnetic stamping method and device

A stamping device and electromagnetic technology, which is applied in the direction of stamping machines, presses, forming tools, etc., can solve the problems of energy waste and inaccurate loading of blank holder force, etc., to improve the forming quality, reduce the influence of electromagnetic coupling and external interference problems , Improve the effect of loading accuracy

Active Publication Date: 2021-10-08
HEFEI UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Existing hydraulic and electromagnetic clamping technologies have serious energy waste during the clamping process. Although the electronically controlled permanent magnet clamping technology can solve the energy problem to a certain extent, the existing electronically controlled permanent magnet chucks have problems in clamping Inaccurate in terms of force loading

Method used

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  • Electromagnetic stamping method and device
  • Electromagnetic stamping method and device
  • Electromagnetic stamping method and device

Examples

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Embodiment Construction

[0042] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present invention. Rather, they are merely examples of apparatuses and methods consistent with aspects of the invention as recited in the appended claims.

[0043] The invention discloses an electromagnetic stamping method, an electromagnetic stamping device and a storage medium. Specifically, the present invention is an electro-permanent magnet distributed edge-holding method and edge-holding device in a stamping process. The scheme of the present invention provides different blank-holding forces for forming areas with different characteristics an...

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Abstract

The invention relates to an electromagnetic stamping method and device. The electromagnetic stamping method comprises the steps of dividing a blank holder of the electromagnetic stamping device into a plurality of blank pressing areas according to contour features of a to-be-stamped part; according to the shape features of each blank pressing area, setting a blank pressing force function changing along with time for each blank pressing area; for each blank holding area, collecting blank holding force data every cycle period t0, and calculating the error between the blank holding force data and the value of the blank holding force function at the current time; and according to the error, controlling the blank holder force of each blank holder area, and stamping a plate under the blank holder force to obtain a to-be-stamped part. According to the electromagnetic stamping method provided by the invention, the blank holder force is controlled in real time according to the fluidity characteristic of the plate in the stamping process, accurate loading of the dynamically changed blank holder force is realized, the blank holder force loading precision and the forming quality are improved, the energy consumption in the blank holder process is reduced, and the influence of electromagnetic coupling among multiple magnetic fields and the external interference are weakened.

Description

technical field [0001] The invention relates to the field of stamping technology, in particular to an electromagnetic stamping method and device. Background technique [0002] The stamping forming processing method is one of the main processing methods for metal plastic deformation. It has the advantages of high production efficiency and low surface roughness, and can be formed in one time for complex parts. The blank holder force control plays a vital role in the forming quality of the stamping parts, the stress and strain state of the sheet metal in the stamping process, and the energy consumption in the stamping process. [0003] Existing hydraulic and electromagnetic clamping technologies have serious energy waste during the clamping process. Although the electronically controlled permanent magnet clamping technology can solve the energy problem to a certain extent, the existing electronically controlled permanent magnet chucks have problems in clamping Inaccurate in te...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B30B1/42B30B15/26B30B15/00B21D37/10B21C51/00
CPCB30B1/42B30B15/26B30B15/0094B21D37/10B21C51/00
Inventor 黄海鸿桑豪杰李磊吕清宇甘雷刘志峰
Owner HEFEI UNIV OF TECH
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