A stamping and welding process for sheet metal parts

A technology of stamping welding and sheet metal parts, which is applied in the field of sheet metal parts processing, can solve the problems of easy wrinkling of bending rounded corners, cracked four-corner joints, excessive cracks, etc., to avoid wrinkling or even cracking, and to solve problems Wrinkle, the effect of simplifying the stamping process

Active Publication Date: 2021-06-04
DONGGUAN HAOSHUN PRECISION TECH CO LTD
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Problems solved by technology

[0004] The purpose of the present invention is to address the deficiencies in the prior art and provide a stamping and welding process for sheet metal parts. This process eliminates the side punching process and at the same time solves the problem of wrinkling, cracking and forming products that are prone to occur at the bending fillet. The problem of excessive cracks at the four corners of the splicing ensures the appearance quality of the product

Method used

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  • A stamping and welding process for sheet metal parts
  • A stamping and welding process for sheet metal parts

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Embodiment Construction

[0033] The present invention is further described in conjunction with the following examples.

[0034] Such as figure 2 As shown, where: the dotted line n indicates the inner bending line, the dotted line m indicates the outer bending line, and the required bending height at the four corners of the sheet is L.

[0035] A stamping and welding process for sheet metal parts of the present embodiment comprises the following steps:

[0036] Step a, drawing forming:

[0037] Draw and form the sheet as a whole, and initially draw the convex hull at the right angle of the sheet, the initially formed convex hull is hemispherical or ellipsoidal;

[0038] Step b, plastic processing:

[0039] Punch the initially formed sheet to punch out the required process holes and positioning holes; then trim the edge and remove excess waste around the sheet;

[0040] Step c, design of cut corners and V-shaped notch 3:

[0041] According to the bending height required at the four corners of the ...

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Abstract

The invention relates to the technical field of sheet metal parts processing, in particular to a stamping and welding process for sheet metal parts, including drawing forming, shaping treatment, design of shear angle and V-shaped notch, secondary drawing of convex hull, bending and pressing Burr, side push flattening and welding steps. Compared with the prior art, the present invention omits the side punching process after bending in the prior art, greatly simplifies the entire stamping process, improves production efficiency, and solves the problems of wrinkling, cracking and The problem of excessive cracks at the four corners of the formed product ensures the appearance quality of the product and makes the product have very good market competitiveness.

Description

technical field [0001] The invention relates to the technical field of sheet metal parts processing, in particular to a stamping and welding process for sheet metal parts. Background technique [0002] Sheet metal is a comprehensive cold processing process for metal sheets (usually below 6mm), including shearing, punching / cutting / compositing, folding, welding, riveting, splicing, forming (such as car body), etc. Sheet metal parts have the advantages of light weight, high strength, conductivity (can be used for electromagnetic shielding), low cost, and large-scale mass production. They are widely used in electronic appliances, communications, automobile industry, medical equipment and other fields, such as in TV In machine sheet materials and mobile phones, sheet metal parts are an indispensable part. [0003] In the prior art, many sheet metal parts such as the periphery of the TV backplane usually need to be bent and flattened (such as figure 1 As shown), at present, in t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P15/00
CPCB23P15/00
Inventor 郝建广冯帅杰贺松炎黄城彰王堂亮
Owner DONGGUAN HAOSHUN PRECISION TECH CO LTD
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