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A permanent magnet blank-holding method and device for deep drawing

A permanent magnet and edge blanking technology, applied in forming tools, metal processing equipment, manufacturing tools, etc., can solve the problems of high energy consumption and complex mold structure, and achieve the effect of safe and reliable work, simplified mold structure, and no energy consumption.

Active Publication Date: 2018-10-16
YANSHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to address the shortcomings of the traditional blank-holding method, and propose a permanent magnet blank-holding method and device for deep drawing. The blank-holding device designed by this blank-holding method solves the problems of the traditional blank-holding method. Problems such as complex mold structure and high energy consumption

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  • A permanent magnet blank-holding method and device for deep drawing
  • A permanent magnet blank-holding method and device for deep drawing
  • A permanent magnet blank-holding method and device for deep drawing

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Embodiment Construction

[0030] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

[0031] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments:

[0032] like figure 1 Shown is a specific embodiment of a permanent magnet blank holder method and device for deep drawing of the present invention. Including: upper die base 1, concave die 2, concave die outer ring 3, wedge block 4, push rod 5, roller 6, lower die base 7, pressing plate 8, permanent magnet assembly 9, unloading screw 10, support Spring 11, punch 12 and slab 13; upper die seat 1 is a rear guide upper die seat, which is fixed on the sl...

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Abstract

The invention discloses a permanent magnetic edge pressing method and a device for deep drawing formation. Multiple permanent magnetic combination bodies (9) are arranged on a pressing plate (8) to divide as fixed magnetic systems and movable magnetic systems; the upper surfaces of the permanent magnetic combination bodies (9) and the upper surface of the pressing plate (8) are located on the same one horizontal plane; the movable magnetic systems at the lower part are fixed on a slide plate (18); pulleys (6) on a push rod (5) move along wedge (4) grooves to push the slide plate (18) and the movable magnetic systems at the lower part to move left and right, so that the fixed magnetic systems and the movable magnetic systems in the permanent magnetic combination bodies (9) generate relative movement, and the outwards expressed magnetic sucking force of the permanent magnetic combination bodies (9) is changed; and when a concave mold outer ring (3) is contacted with a plate blank (13) on the pressing plate (8), the magnetic sucking force is generated between the concave mold outer ring (3) and the permanent magnetic combination bodies (10), and the edge pressing force is applied to the plate blank through self structure in the deep drawing forming process.

Description

technical field [0001] The invention relates to the field of sheet metal forming, in particular to a permanent magnet edge holder method and device for deep drawing forming, which belongs to a new field of permanent magnet technology application. Background technique [0002] Deep drawing is one of the main process methods of sheet metal forming, which occupies a very important position in production and processing. It is well known that the two main failure modes of deep drawing are wrinkling and cracking. In deep drawing, using a reasonable blank holder method and applying a proper blank holder force can suppress the wrinkling of the slab and improve the forming limit. [0003] There are mainly three kinds of traditional blank blanking methods: elastic blank blanking, rigid blank blanking and blank blanking using liquid or gas as the force transmission medium. The elastic blank holder method is based on the reaction force generated by the compression of the elastic eleme...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21D37/12B21D22/22
CPCB21D22/22B21D37/12
Inventor 杨莉王来彬秦泗吉
Owner YANSHAN UNIV