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Bending tools for beams of motor vehicles

A tool and bending technology, which is applied in the field of beam tools, can solve problems affecting vehicle costs, etc., and achieve the effects of simplified adjustment methods, low replacement costs, and cost savings

Active Publication Date: 2021-04-27
PEZHO SITROEN AUTOMOBILS SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

All of this requires a doubling of the tooling required for each beam model, which affects the cost of the vehicle

Method used

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  • Bending tools for beams of motor vehicles
  • Bending tools for beams of motor vehicles
  • Bending tools for beams of motor vehicles

Examples

Experimental program
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Embodiment Construction

[0038]In the following description, the lateral direction is considered to be a closed and open direction transverse to the tool, which may correspond to a vertical direction. The length extends along the profile, especially along its extrusion direction. The curved operation should be understood as the plastic deformation of the profile.

[0039]figure 1 Bending tool 2 for the profile 4 in an open position. Tool 2 is particularly suitable for aluminum molded profiles 4 extruded in advance. The length of the profile 4 can be greater than 0.50 m or 1m. Its total thickness can be greater than 30 mm, while its wall has a thickness of more than 0.5 mm.

[0040]Tool 2 is designed to be mounted on a press (not shown). The bending tool 2 includes a lower support 6, which is designed to be mounted on the lower frame of the press, and the upper support 8, which is designed to be mounted on the upper frame of the press. The approach of the support member (6; 8) caused by the press can be used in th...

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Abstract

The invention relates to a tool (2) for bending a profile (4) to form a crash-absorbing beam for a motor vehicle. The tool (2) comprises a first support (6), in particular a lower support, and a second support (8), in particular an upper support, which supports are mounted on the press. The tool (2) comprises a curved body which is removably fixed on its support. Thus, the curved bodies are interchangeable in order to be able to form different profiles (4), but also to achieve different beam shapes from the same profile (4). Thus, the supports and possibly the intermediate blocks can be saved for the production of different products, which facilitates the saving of bending tools (2) in the context of the production of different vehicle models.

Description

Technical field[0001]The present invention relates to bending of a metal profile. More specifically, the present invention relates to a tool for stretching the beam of the bending motor vehicle.Background technique[0002]A collision absorber is provided on the front and rear portions in terms of passive safety performance of the vehicle. These absorbers generally include a beam, and the beam is attached to the vehicle body through the collision absorber and the panel to improve the interface performance. The beam is advantageously an extruded aluminum profile that accepts a bending operation to obtain a predetermined arched shape. In this context, a tensile bending method is particularly proposed (English also known as stretch bending).[0003]Document US 8,950,228 B2 discloses a stamping tool for curved a beam made of aluminum of the vehicle collision absorber. The bending tool includes a punch and a die disposed between the transverse jaws. These jaws are used to consolidate the orig...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21D7/06B21D53/88
CPCB21D7/06B21D7/066B21D53/88
Inventor 勒诺·莱尔本努特·杜科涅茨安德烈亚斯·席勒尼古拉斯·赫斯
Owner PEZHO SITROEN AUTOMOBILS SA