Self-piercing rivet mold

A self-piercing riveting and die technology, applied in the direction of rivets, screws, connecting components, etc., can solve problems such as weakening of self-piercing rivets

Active Publication Date: 2020-06-26
BOLLHOFF VERBINDUNGSTECHNIK GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Usually this is not achieved, which leads to a weakening of the self-piercing rivet joint

Method used

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  • Self-piercing rivet mold
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  • Self-piercing rivet mold

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0065] similar to image 3 The mold form of , with the following geometric data

[0066] D. M =12.2mm

[0067] D. 20 =8.395mm

[0068] α=18°

[0069] R OE =0.5mm

[0070] R ES =10.4mm

[0071] R S =0.2mm

[0072] R 24 =11.17mm

[0073] R 16 =0.6mm

[0074] T RK =0.9mm

example 2

[0076] similar to image 3 The mold form of , with the following geometric data

[0077] D. M =12.2mm

[0078] D. 20 =7.3mm

[0079] α=18°

[0080] R OE =0.5mm

[0081] R ES =10.4mm

[0082] R S =0.8mm

[0083] R 24 =1.44mm

[0084] R 16 =0.6mm

[0085] T RK =1.3mm

example 3

[0087] similar to Figure 9 The mold form of , with the following geometric data

[0088] D. M =12.2mm

[0089] D. 20 =8.395mm

[0090] α=18°

[0091] R OE =0.5mm

[0092] R ES =10.4mm

[0093] R S =0.2mm

[0094] R 24 =11.17mm

[0095] R 16 =0.6mm

[0096] T RK =0.9mm

[0097] D. A =3.6mm

[0098] T A =0.9mm

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Abstract

A self-piercing riveting die for a setting device, by which a self-piercing riveting connection in a plurality of components is establishable by forming a closing head. This self-piercing riveting die may include a main body with an upper side and a recess arranged rotationally symmetrically to the central axis of the self-piercing riveting die formed therein. In the cross-section of the self-piercing riveting die, the recess has a demolding inclination of the demolding section, which radially transitions via a step into a circular arc-shaped lowering of the annular channel section, wherein the circular arc-shaped lowering radially inwardly rises straight-lined or circular arc-shaped or curvilinearally to the die bottom.

Description

technical field [0001] The invention relates to a self-piercing rivet die for setting self-piercing rivets on at least first and second parts, a mounting device combined with the self-piercing rivet die, through which the self-piercing rivet die is formed in at least two A connection established between components, and a method for establishing this connection. Background technique [0002] In the prior art it is known to join at least first and second parts by means of self-pierce riveting. For this purpose, the self-piercing rivet is driven by a mounting device to at least two parts, wherein the at least two parts are supported on a die arranged opposite the punch. Due to its shape, this mold affects the characteristics of the joint connection. [0003] For example, DE 199 05 528 B4 discloses an anvil mold which is characterized by a flat surface which serves as a seat for supporting the parts to be joined. The die formed in this manner provides an aesthetically appeali...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21J15/02B21J15/36
CPCB21J15/025B21J15/36F16B19/086F16B19/10
Inventor 丹尼斯·亨克丹尼尔·荣克维茨安德烈亚斯·马克思克斯弗朗茨-费迪南·门恩
Owner BOLLHOFF VERBINDUNGSTECHNIK GMBH
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