An electromagnetic punching device and method based on a magnet collector

Abstract

The invention belongs to the field of sheet blanking and particularly discloses a magnetic collector based electromagnetic blanking device and method. A die unit of the magnetic collector based electromagnetic blanking device comprises an upper die plate, a convex die and a lower die plate, wherein the convex die is connected with the upper die plate and is arranged between the upper die plate andthe lower die plate; an electromagnetic unit is connected with the lower die plate; a to-be-blanked sheet is arranged between the convex die and the electromagnetic unit; the electromagnetic unit comprises a magnetic collector and a coil; the magnetic collector gathers pulse current generated by the coil and forms electromagnetic force on the surface of the to-be-blanked sheet so as to finish theblanking process and obtain a formed sheet; and a pulse discharging unit is connected with the electromagnetic unit and is used for discharging to the coil. The magnetic collector based electromagnetic blanking device adopts non-space blanking, avoids the burr problem caused by the space between the traditional blanked convex die and concave die, provides technological support for light weight ofmaterial, can change the shape of the coil, the shape, close to the to-be-blanked sheet side, of the magnetic collector, and the shape of the convex die according to the shape of the blanked piece, and also meets the requirement of a light-weight structure.

Description

Technical field [0001] The invention belongs to the field of sheet metal blanking, and more specifically, relates to an electromagnetic blanking device and method based on a magnetic concentrator. Background technique [0002] As environmental problems become increasingly prominent, green manufacturing has become the development trend of the times, and there is an increasing demand for materials with various shapes and lightweight structures. Lightweighting can usually be accomplished by lightening structures and materials. [0003] In terms of material lightweight, aluminum alloy has the characteristics of low density and high specific strength, making it the material of choice for lightweight design. At the same time, under traditional plastic forming conditions, the forming limit of aluminum alloy is much lower than that of steel, the surface hardness is low, tearing is prone to occur in high strain areas, and the rigidity is low, and springback is easy to occur, so dimensional...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the above defects or improvement needs of the prior art, the present invention provides an electromagnetic punching device and method based on a magnetic collector, wherein the device is designed with a "no-spacing" correspondingly according to the problem that burrs are easily generated in the traditional punching process The punching device, and the research and design of its key components such as the structure of the mold unit and the electromagnetic unit and their specific setting methods, can effectively solve the problem of poor punching quality, and also have the advantage of strong adaptability, so Especially suitable for applications where the material is lightweight

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