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Double side hole flanging structure of double hole shielding case progressive die

A technology of shielding cover and hole flanging, applied in the direction of perforation tools, forming tools, manufacturing tools, etc., can solve the problems of high design cost, processing and manufacturing cost, low production efficiency, high labor cost, and improve the stress state and prolong the life. The effect of service life

Active Publication Date: 2011-12-21
DONGGUAN DAZHONG ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When manufacturing this kind of shielding cover, it is necessary to punch out side holes on both sides of the shielding cover first, then fold the side holes, and then flatten the side holes. The manufacturing process is relatively complicated.
The process is made by a single-punch mold, and there are 6 processes of stretching, flashing, side hole punching, side hole folding, side hole flanging and flattening, and side hole shearing. Correspondingly, 6 molds need to be produced. 6 stampings are carried out, so the design cost and processing and manufacturing cost are high; due to the manual operation, the labor cost is high, the defective rate is high, and the production efficiency is low

Method used

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  • Double side hole flanging structure of double hole shielding case progressive die
  • Double side hole flanging structure of double hole shielding case progressive die
  • Double side hole flanging structure of double hole shielding case progressive die

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] The double-side hole flanging structure of the double-hole shield progressive die of the present invention is as follows: Figure 1~6 The double hole flanging structure of the double-hole shielding cover progressive mold shown is used in conjunction with the double-hole shielding cover progressive mold. The double-hole shielding cover progressive mold includes: an upper mold, a stripper plate and a lower mold.

[0041] The double-hole flanging structure of the double-hole shield progressive die includes the three-stage punch 210 of the inner slide block of the flanging lower mold located on both sides of the upper die, the flanging and stripping slide block punch 310, and the flanging and stripping slide block. The punch 310 is set on the inner side of the third-stage punch 210 of the slider in the lower mold of the flanging;

[0042] The inner slider of the flanging lower mold, which is arranged on both sides of the lower mold, is a secondary punch 220, and the inner s...

Embodiment 2

[0052] The double-side hole flanging structure of the double-hole shield progressive die of the present invention is as follows: image 3 , Figure 4 Shown, main structure is identical with above-mentioned embodiment 1, difference is:

[0053] The side impulse force of the flanging and stripping slider 320 is transmitted by two inclined surfaces. The angle a between the first punching surface 311 of the flanging and stripping slider 310 and the vertical direction is between 20 and 70 degrees, and the second punching surface 312 and the vertical direction are between 20 and 70 degrees. The angle b in the vertical direction is between 20 and 70 degrees, and the angle c between the first inclined surface 321 of the corresponding flanging and stripping slider 320 and the vertical direction is also between 20 and 70 degrees, and the second inclined surface 322 and the vertical direction The included angle d of the directions is also between 20 and 70 degrees, and the angles a and ...

Embodiment 3

[0056] The flanging structure of the double-side holes of the double-hole shield progressive mold of the present invention is shown in Figure 3, Figure 4 Shown, main structure is identical with above-mentioned embodiment 1, difference is:

[0057] The side impulse force of the flanging and stripping slider 320 is transmitted by two inclined surfaces. The angle a between the first punching surface 311 of the flanging and stripping slider 310 and the vertical direction is between 30 and 60 degrees, and the second punching surface 312 and the vertical direction are between 30 and 60 degrees. The angle b in the vertical direction is between 30 and 60 degrees, and the angle c between the first inclined surface 321 of the corresponding flanging and stripping slider 320 and the vertical direction is also between 30 and 60 degrees, and the second inclined surface 322 and the vertical direction The included angle d of the directions is also between 30 and 60 degrees, and the angles a ...

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PUM

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Abstract

The invention relates to the technical field of dies, in particular to a bilateral hole turnup structure of a double-hole shielding cover progressive die. The bilateral hole turnup structure of the double-hole shielding cover progressive die comprises that: a turnup lower die inner sliding block three-stage punch and a turnup stripping sliding block are arranged on two sides of an upper die; the turnup stripping sliding block punch is arranged on the inner side of the turnup lower die inner sliding block three-stage punch; a turnup lower die inner sliding block two-stage punch is arranged on two sides of a lower die; a turnup lower die inner sliding block is arranged in the middle of the lower die; a turnup lower die inner sliding block reset device is arranged at the bottom of the turnuplower die inner sliding block; and the turnup lower die inner sliding block three-stage punch drives the turnup lower die inner sliding block two-stage punch and the turnup lower die inner sliding block to move. According to the structure, the bilateral hole turnup structure of the double-hole shielding cover progressive die is suitable for producing the shielding cover with side holes on two sides by using the progressive die, reduces labor cost, and has low defective rate of the shielding covers and high production efficiency.

Description

technical field [0001] The invention relates to the technical field of molds, in particular to a double-side hole flanging structure of a progressive mold for a double-hole shielding cover. Background technique [0002] With the rapid development of science and technology, the application of various high-tech electronic products is becoming more and more popular, but it also brings many problems, such as the electromagnetic interference problem encountered in the use of electronic products, which not only interferes with the electronic products The normal use, but also has an adverse impact on the surrounding environment. [0003] In the prior art, one of the main means used in the design of some current devices to protect against EMI (Electromagnetic Interference, electromagnetic interference) and ESD (Electro-Static discharge, electrostatic discharge) is to use a shield to shield the source of interference Shielded to protect susceptible devices and cut off interference f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D37/10B21D28/34B21D19/00
Inventor 陈松林李正中
Owner DONGGUAN DAZHONG ELECTRONICS