Controllable drawing male mold with magnetization function

Abstract

The invention discloses a controllable drawing male mold with a magnetization function, and relates to the technical field of sheet drawing. The controllable drawing male mold with the magnetization function comprises a male mold body, and a magnetic component, wherein a cavity is formed inside the male mold body; a magnetism isolation center column is arranged at the center of the cavity; the magnetic component comprises a power source, a current regulator, soft magnets, hard magnets, magnetizers, coils and isolation magnets; the plurality of soft magnets and the plurality of isolation magnets are nested on the magnetism isolation center column at intervals in the radial direction of the magnetism isolation center column; the plurality of hard magnets and the plurality of magnetizers arenested on the magnetism isolation center column at intervals in the radial direction of the magnetism isolation center column; one soft magnet and one magnetizer are oppositely arranged up and down; one isolation magnet and one hard magnet are oppositely arranged up and down; a ring slot is formed in one side, close to the soft magnet, of each isolation magnet; the ring slots correspond to the coils one by one; one coil is arranged in one ring slot; and the outmost coil is electrically connected to the current regulator. The controllable drawing male mold with the magnetization function does not have the problem of overheating, has the adjustable magnetic field size, and can realize the demagnetization of sheets.

Description

technical field [0001] The invention relates to the technical field of plate deep drawing, in particular to a controllable deep drawing punch with magnetization function. Background technique [0002] Sheet metal deep drawing is a plastic processing method that uses the plasticity of metal materials, uses a deep drawing die, and makes the processed sheet into parts through the deep drawing force. Compared with machining methods, deep drawing has higher efficiency and higher material utilization, so it has been widely used in various military, aerospace, civil and medical fields. [0003] Wrinkling and cracking are the most common failure modes in deep drawing, and they are related to condition parameters such as mold, sheet size, lubrication, speed, temperature, etc., including applied blank holder force, etc. In order to prevent deep-drawing defects, many methods have been adopted, such as the application method of blank-holding force, the timing of application, and the co...

AI Technical Summary

Problems solved by technology

However, the electromagnet needs to be energized to generate a magnetic field. Therefore, it needs to be continuously energized during the forming process, and the energy consumption is relatively high.

Moreover, the electromagnet heats up very seriously. When it is continuously drawn and formed, it will cause serious overheating problems.

However, if a permanent magnet is used as the source magnetic field to magnetize the sheet, the magnetic field cannot be adjusted at different forming stages, and it cannot be demagnetized.

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