Electromagnetic stamping method and device
A punching device, electromagnetic technology, applied in punching machines, presses, forming tools, etc., can solve the problems of energy waste, imprecise blank holder force loading, 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: 2022-05-24
HEFEI UNIV OF TECH
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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
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[0042] Exemplary embodiments will be described in detail herein, examples of which are illustrated in the accompanying drawings. Where the following description refers to the drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the illustrative examples below are not intended to represent all implementations consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with some aspects of the invention as recited in the appended claims.
[0043] The invention discloses an electromagnetic punching method, an electromagnetic punching device and a storage medium. Specifically, the present invention is an electric permanent magnet distributed edge blanking method and edge blanking device in a stamping process. The solution of the present invention is aimed at forming areas with different characteristics and provides different blank holder...
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The invention relates to an electromagnetic stamping method and device. The electromagnetic stamping method includes: dividing the blank-holding ring of the electromagnetic stamping device into multiple blank-holding areas according to the contour characteristics of the workpiece to be stamped; The blank holder force function; for each blank holder area, every cycle t 0 Collect blank-holding force data, and calculate the error between the blank-holding force data and the value of the blank-holding force function at the current time; control the blank-holding force of each blank-holding area according to the error, and adjust the plate under the blank-holding force The material is stamped to obtain the stamped part. The present invention controls the blank-holding force in real time according to the fluidity characteristics of the sheet metal in the stamping process, realizes the accurate loading of the dynamically-changing blank-holding force, improves the loading accuracy of the blank-holding force and the forming quality, and reduces the energy consumption of the blank-holding process. The influence of electromagnetic coupling between multiple magnetic fields and 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] 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 at 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 during the stamping process, and the energy consumption during the stamping process. [0003] The existing hydraulic and electromagnetic blanking technologies have serious energy waste in the blanking process. Although the electronically controlled permanent magnet blanking technology can solve the energy problem to a certain extent, the existing electronically controlled permanent magnet suction cups have blank blanking problems. The forc...
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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