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Process for forming side boards of backrests of automobile seats

A technology of car seat and forming process, which is applied in the field of hardware forming, can solve problems such as wrinkles in the flanging process, achieve the effects of increasing drawing depth, reducing shear stress, and improving product quality

Active Publication Date: 2014-04-23
RAINBOW METAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved in the present invention is to overcome the problem of wrinkling in the flanging process in the process of continuously molding the side panel of the backrest of the automobile seat at present, and to provide a molding process for the side panel of the backrest of the automobile seat

Method used

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  • Process for forming side boards of backrests of automobile seats
  • Process for forming side boards of backrests of automobile seats
  • Process for forming side boards of backrests of automobile seats

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Embodiment Construction

[0028] Hereinafter, specific embodiments of the present invention will be described in conjunction with the accompanying drawings.

[0029] Such as Figure 1 to Figure 4 As shown, the forming process of the side panel of the backrest of the car seat includes the first punching process 001, the incision process 002, the trimming process 003, the drawing process 004, the first empty station 005, and the downward flanging process 006 , the second empty station 007, the side shaping process 008, the third empty station 009, the second punching process 010, the first hole turning process 011, the side punching process 012, the fourth empty station 013, the fifth empty station Station 014, sixth empty station 015, first side flanging process 016, seventh empty station 017, second side flanging process 018, eighth empty station 019, second hole turning process 020, ninth Empty station 021, shaping process 022 and cutting process 023. Each process is realized by the mold unit corresp...

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Abstract

The invention discloses a process for forming side boards of backrests of automobile seats, and relates to technologies for forming hardware. The process includes a downward flanging procedure. The downward flanging procedure includes steps of firstly, building a mathematical model of drawing rounded corners of drawing rounded corner parts of sheets and wrinkling regions on sheets in a downward flanging procedure; secondly, determining drawing rounded corner magnitude ranges and optimal drawing rounded corner magnitude values by the aid of the mathematical model; thirdly, drawing rounded corners according to the optimal drawing rounded corner magnitude values determined in the second step; fourthly, downwardly flanging the sheets along the drawing rounded corner parts. The magnitude of each drawing rounded corner is used as an independent variable in the mathematical model, the area of each wrinkling region is used as a dependent variable in the mathematical model, and the area of each wrinkling region is the sum of the areas of a plurality of wrinkling sub-regions; the mathematical model is built by the aid of data acquired in field tests. The areas of the wrinkling regions are minimized under the effect of the determined drawing rounded corner magnitude ranges and the determined optimal drawing rounded corner magnitude values. The method has the advantages that the mathematical model of the drawing rounded corners and the wrinkling regions is built via the tests, the drawing rounded corner magnitude ranges and the optimal drawing rounded corner magnitude values are determined, and the areas of the wrinkling regions are minimized under the effect of the determined drawing rounded corner magnitude ranges and the determined optimal drawing rounded corner magnitude values, accordingly, the problem of wrinkling of products can be solved, and the quality of the products can be greatly improved.

Description

technical field [0001] The invention relates to hardware forming technology, in particular to a forming process for side panels of backrests of automobile seats. Background technique [0002] As we all know, CAE software analysis integrates the extensive experience of many automobile manufacturers and mold suppliers around the world. CAE software analysis has the innovation of forming simulation technology, and can easily solve the complex sheet metal forming problems involved in process and mold design. It provides a very powerful theoretical basis for optimizing process parameters and mold structure. However, there are many factors in the actual production process that lead to production results that are not as perfect as CAE analysis. In actual production, there are various factors such as environment, temperature and resistance. It is based on such an analysis software that it cannot completely simulate various relevant factors in real production. For example, in the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D35/00
Inventor 倪虹杰李江飞
Owner RAINBOW METAL TECH
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