Automobile A-pillar structure, vehicle and manufacturing method of A-pillar structure

A manufacturing method and column structure technology, applied in the connection between superstructure sub-assemblies, superstructure, vehicle components, etc., can solve the problems of secondary damage to the passenger compartment, insufficient impact energy absorption, and no support for A-pillars, etc. Achieve the effect of not easy slipping, improving stiffness and dispersing collision energy

Active Publication Date: 2021-04-09
HUNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Although the A-pillar adopts a cavity-type structure, there is no support inside the A-pillar, which has the disadvantages of insufficient rigidity and insufficient impact energy absorption. During the collision, solder joints are prone to cracking, resulting in bending of the sheet metal, causing damage to the passenger compartment. secondary injury

Method used

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  • Automobile A-pillar structure, vehicle and manufacturing method of A-pillar structure
  • Automobile A-pillar structure, vehicle and manufacturing method of A-pillar structure

Examples

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Embodiment 1

[0037] Figure 1-2 It shows the automobile A-pillar structure of the present invention, which is an integrally extruded cavity structure, the cavity is distributed axially along the A-pillar body 1, and pipe fittings 2 are arranged in the cavity, and the pipe fittings 2 are distributed axially along the cavity, The A-pillar body 1 and the pipe fitting 2 are in a bending fit.

[0038] One-piece extrusion molding can ensure the overall rigidity and prevent the A-pillar from collapsing during the collision. The pipe fitting 2 is arranged in the cavity of the A-pillar body 1 to further improve the rigidity. The column body 1 is more tightly connected and is not easy to slip off. The curved A-pillar body 1 and the pipe fitting 2 have an arched structure with better impact resistance when subjected to a collision.

[0039] In this embodiment, the A-pillar structure of the automobile forms a network-like cross-section during extrusion molding.

[0040] The network-like cross-sectio...

Embodiment 2

[0049] The invention discloses a method for manufacturing an automobile A-pillar structure, which specifically includes the following steps:

[0050] S1: Connect the extrusion die to the port of the extrusion equipment through bolts;

[0051] S2: heating the aluminum alloy ingot to 360°C to 380°C, and putting it into the extrusion cylinder of the extrusion equipment;

[0052] S3: The extrusion device in the extrusion equipment advances to the extrusion die at a predetermined extrusion speed, extrudes the aluminum alloy ingot, and passes the aluminum alloy ingot from the die hole of the extrusion die Extrude to form an extrusion;

[0053] S4: Fix one end of the extruded piece formed by the traction equipment, and complete the traction with the work of the extrusion equipment;

[0054] S5: The aluminum alloy ingots inside the extrusion cylinder are all converted into extrusions, and the extrusions are cut according to the preset size by cutting equipment.

[0055] S6: Insert ...

Embodiment 3

[0060] The present invention provides an automobile A-pillar structure, including an A-pillar body, and the A-pillar body should have a cavity inside; wherein, a pipe fitting is arranged in the cavity of the A-pillar body; implementing the embodiment of the present invention is beneficial to the safety of the vehicle body The performance is improved to solve the problem that the A-pillar in the prior art is prone to solder joint cracking and sheet metal bending during the collision due to insufficient rigidity and insufficient impact energy absorption, resulting in secondary damage to the passenger compartment.

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Abstract

The invention relates to an automobile A-pillar structure, a vehicle and a manufacturing method of the A-pillar structure, and aims at the automobile A-pillar structure, the automobile A-pillar structure is of an integrally extruded cavity structure, cavities are distributed in the axial direction of an A-pillar body, pipe fittings are arranged in the cavities, the pipe fittings are distributed in the axial direction of the cavities, and the A-pillar body is in bending fit with the pipe fittings. The vehicle provided by the invention comprises the A column structure, and the manufacturing method provided by the invention specifically comprises the following steps: S1, an extrusion die is connected to extrusion equipment; S2, the aluminum alloy cast ingot is heated; S3, an extrusion device extrudes the aluminum alloy cast ingot for extrusion; S4, the extrusion part is pulled; and S5, the aluminum alloy is converted into an extrusion part. And S6, the pipe fitting is embedded into the A column body, and then the overall structure is stretched and bent, or the pipe body and the A column body are stretched and bent correspondingly, and then the pipe fitting is embedded into the A column body. Lightweight design of an automobile is facilitated, and the column A is reinforced.

Description

technical field [0001] The invention relates to the technical field of automobiles, in particular to an automobile A-pillar structure. [0002] The invention also relates to a motor vehicle comprising the above-mentioned A-pillar structure. [0003] The present invention also relates to a method for manufacturing the above-mentioned A-pillar structure. Background technique [0004] The A-pillar of an automobile refers to the supporting pillars on the left and right sides of the front windshield of the automobile. As an important supporting structure of the passenger compartment, it must have sufficient rigidity and strength performance to ensure the overall performance of the body structure. Once the car collides, the A-pillar will play the role of transmitting the impact of the collision to the rear of the car, so the structure itself must have strong impact resistance to protect the passenger compartment from damage. [0005] Although the A-pillar adopts a cavity-type s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62D25/04B62D27/02B23P15/00
CPCB62D25/04B62D27/026B23P15/00
Inventor 姜潮雷飞张天昊邱志锋
Owner HUNAN UNIV
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