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Edge connection structure

A connection structure and hemming technology, which is applied in the direction of connection components, thin plate connection, transportation and packaging, etc., can solve the problems of uneven intensity current traces, uncertain parameters, high maintenance costs, etc.

Active Publication Date: 2016-11-23
SKODA AUTO AS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Disadvantages of hemming flange fastening by means of welded connections include: fixed connection of sheet metal elements without possibility of adjustment, uncertain parameters of welded connections, audit (Quality Audit) defects under the influence of introduced energy Danger, increased risk of corrosion due to damage to the protective zinc layer at the location of the welding point
Other disadvantages are the uneven strength of the solder joints in relation to the amount of adhesive, the risk of electric current traces (burn marks) in the visible area of ​​the component, higher repair costs and higher investment costs

Method used

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Examples

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Embodiment Construction

[0012] figure 1 A structural component of a motor vehicle body, in particular a door, is shown as an exemplary embodiment of the invention. On the periphery of the vehicle door, a hemming connection 1 of two sheet-metal components is formed, more precisely the hemming connection of the inner panel part 2 and the outer panel part 3 forming the actual door structure. That is, according to image 3 , the actual hemming connection structure 1 is formed by the connection of the inner panel part 2 and the outer panel part 3 on the edges 5 , 6 of said inner panel part 2 and outer panel part 3 . The connection is formed at the edge 5 of the inner sheet-metal part 2 and by turning over the edge 6 of the outer sheet-metal part 3 .

[0013] The actual hemming process is carried out according to conventional methods, in particular, the inner sheet metal part 2 and the outer sheet metal part 3 are joined together in a form-locking manner during rolling hemming (piping), wherein the hemmi...

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PUM

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Abstract

The invention relates to a hemming connection structure (1) formed by connecting an inner plate part (2) and an outer plate part (3). The connection is formed at the edge (5) of the inner sheet-metal part by the folded-back edge (6) of the outer sheet-metal part (3). The invention is characterized in that the inner sheet-metal part (2) has at least one stop projection (4), which is formed in the region of the hemming line (h) of the hemming connection (1). The stop protrusion (4) is formed on the upper surface (7) of the inner sheet-metal part (2) and has an elongated shape and intersects the hemming line (h) of the hemming connection (1).

Description

technical field [0001] The invention relates to a hemming connection with improved tightness for preventing movement between the individual panels after the edges of the panels have been folded over. Background technique [0002] Currently in the technical manufacture of car bodies and other automotive panel parts, known technical hemming forms are usually used to join the edges of two panel parts. When transporting the hemmed sheet metal parts during the manufacturing process, the positional stability of the inner sheet metal part relative to the outer sheet metal part should be ensured. Relative movement of the individual sheet metal parts should be prevented by fixing their position. [0003] One such solution is initially proposed in document DE 102008060547. In order to further improve the defined properties of the composite body formed by the known rolling hemming process, prior to the actual joining, an adhesive is applied in the joint area of ​​the panels so that t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21D39/02F16B5/00
CPCB21D39/021B21D39/026B60J5/0469
Inventor J·哈莱克J·萨莱格
Owner SKODA AUTO AS