WO2013010403A1 - 一种独立悬架汽车拖曳臂安装座结构及其制作方法 - Google Patents

一种独立悬架汽车拖曳臂安装座结构及其制作方法 Download PDF

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Publication number
WO2013010403A1
WO2013010403A1 PCT/CN2012/076068 CN2012076068W WO2013010403A1 WO 2013010403 A1 WO2013010403 A1 WO 2013010403A1 CN 2012076068 W CN2012076068 W CN 2012076068W WO 2013010403 A1 WO2013010403 A1 WO 2013010403A1
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Prior art keywords
plate
trailing arm
support
arm support
support plate
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PCT/CN2012/076068
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English (en)
French (fr)
Inventor
张伟
Original Assignee
奇瑞汽车股份有限公司
芜湖普威技研有限公司
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Application filed by 奇瑞汽车股份有限公司, 芜湖普威技研有限公司 filed Critical 奇瑞汽车股份有限公司
Publication of WO2013010403A1 publication Critical patent/WO2013010403A1/zh

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
    • B62D25/20—Floors or bottom sub-units
    • B62D25/2009—Floors or bottom sub-units in connection with other superstructure subunits
    • B62D25/2027—Floors or bottom sub-units in connection with other superstructure subunits the subunits being rear structures

Definitions

  • the invention relates to the field of automobiles, and in particular to an independent suspension vehicle tow arm mounting structure and a manufacturing method thereof. Background technique
  • the trailing arm on the suspension is mounted on the body through the tow arm mount of the body.
  • the tow arm mount of the body In order to improve driving safety, especially to improve the safety of driving on poor road conditions, such as when the car is driving on a bad road or a tire is plunged into a pit, suddenly braking suddenly, or hitting the steering wheel downhill and emergency Braking, or when the wheels are on the bulge or the boulder, will cause a huge load, sometimes causing sudden deformation and damage of the automobile components.
  • the purpose of the embodiments of the present invention is to provide an independent suspension vehicle tow arm mount for improving the structural strength of the trailing arm mount, preventing the tearing of the outer arm of the trailing arm support, and ensuring the driving safety of the vehicle. structure.
  • Another object of the present invention is to provide a method of making an independent suspension vehicle trailing arm mount structure.
  • An independent suspension vehicle trailing arm mount structure comprising a fixedly coupled trailing arm support inner panel and a trailing arm support outer panel, further comprising a bracket, the bracket comprising an intermediate bracket, the middle branch One end of the plate is connected to the first support plate, the other end is connected with a second support plate opposite to the first support plate, and one side of the intermediate support plate is provided with a flange; the first support plate is connected with the inner wall of the door, the middle The support plate is connected to the outer arm of the tow arm support, and the second support plate is sequentially connected to the outer plate of the tow arm support and the inner plate of the tow arm support, and the flange is connected to the rear longitudinal beam and the rear floor front beam connection plate in sequence. .
  • connection is a weld.
  • the first support plate is connected to the inner panel of the sill by a solder joint
  • the middle support plate is connected to the outer panel of the trailing arm support by three solder joints
  • the second support plate is sequentially connected to the trailing arm by two solder joints
  • the outer plate of the support and the inner plate of the tow arm support, the flange is connected to the rear longitudinal beam and the rear floor front beam connecting plate through two welding points.
  • the first support plate, the intermediate support plate, the second support plate and the flange are integrated structures.
  • the bracket is of the "Z" shape.
  • the inner and outer plates of the tow arm support have a yield strength of 250 MPa to 290 MPa, and the stent has a yield strength of 120 MPa to 160 MPa.
  • Another technical solution provided by the embodiment of the present invention is: a method for manufacturing an independent suspension vehicle trailing arm mount structure, comprising the following steps: first, welding the inner arm of the trailing arm support and the outer panel of the trailing arm support, and then After the bracket is welded, a welding sub-assembly is formed, and the welding sub-assembly and the rear longitudinal beam are welded to form a rear longitudinal beam sub-assembly, and the rear longitudinal beam sub-assembly is respectively connected with the rear floor front cross-member connecting plate and the sill inner panel Pick up.
  • the tow arm support inner plate and the tow arm support outer plate are connected by 8 solder joints; and the bracket is connected by 5 solder joints; the welding subassembly is welded to the rear longitudinal beam through 6 solder joints.
  • the rear longitudinal beam sub-assembly and the rear floor front cross-member connecting plate pass through two welding points, and the rear longitudinal beam sub-assembly and the sill inner panel are connected by a plurality of points.
  • Another preferred technical solution provided by the embodiment of the present invention is a manufacturing method, a method for manufacturing an independent suspension vehicle trailing arm mount structure, comprising the following steps: First, the trailing arm support inner panel and the trailing arm support outer panel Through 8 solder joints, the middle support plate and the outer arm of the trailing arm support are connected by 3 welding points, and the second support plate is welded to the outer support plate and the trailing arm by two joints through two solder joints.
  • the inner plate of the support is connected to the rear longitudinal beam and the front floor front beam connecting plate through two welding points through two welding points, and finally the first supporting plate and the inner wall of the sill are sequentially connected by a welding point.
  • the inner and outer plates of the tow arm support have a yield strength of 250Mpa to 290Mpa.
  • the Z-shaped bracket has a yield strength of 120Mpa to 160Mpa, and the parts are easily stamped. Choosing a higher strength material does not change the stress distribution of the entire trailing arm support. On the contrary, it will lead to difficulty in stamping and increase the cost.
  • the front part of the support is designed with a "Z" bracket, which connects the tow arm support to the body sill and the rear sill, respectively, so that the X-direction force of the tow arm support is transmitted to the sill and the floor respectively, improving the towing.
  • the force of the arm support is distributed. The cracking failure of the outer arm of the trailing arm support is effectively prevented, and the driving safety of the vehicle is ensured.
  • the bracket Since the trailing arm is not arranged completely along the X direction of the car, and has a certain angle with the X direction, the bracket is designed to be welded to the side of the floor, and then the end of the door is welded to the inner panel of the sill.
  • the bracket forms a Y-direction pulling force on the trailing arm support, and reduces the drag force of the trailing arm support due to the X-direction force decomposition, and the trailing arm support rotates inward around the z-axis direction of the vehicle coordinate system to make the tow arm support Tearing situation, from The utility model can effectively prevent the tearing of the outer panel of the tow arm support, thereby ensuring the safety of driving the vehicle.
  • FIG. 1 is a schematic structural view of an independent suspension vehicle tow arm mount according to an embodiment of the present invention
  • Figure 2 is an exploded perspective view of Figure 1;
  • FIG. 3 is a schematic structural view of a bracket provided by an embodiment of the present invention.
  • an independent suspension automobile trailing arm mount structure includes a fixedly connected trailing arm support inner panel 2 and a trailing arm support outer panel 3, and further includes a bracket 5 including a middle support plate 5.0, in the middle
  • the support plate 5.0 is connected to the first support plate 5.1, the other end is connected to the second support plate 5.2 opposite to the first support plate 5.1, and the intermediate support plate 5.0 is provided with a flange 5.3 on the side;
  • the first plate 5.1 is connected to the threshold Plate 1
  • the intermediate support plate 5.0 is connected to the tow arm support outer plate 3
  • the second support plate 5.2 is sequentially connected to the tow arm support outer plate 3 and the tow arm support inner plate 2
  • the flange 5.3 is sequentially connected to the rear longitudinal beam 4 and rear Floor front beam connecting plate 6.
  • the X-direction force received by the trailing arm support is transmitted to the sill and the floor respectively, and the force distribution of the trailing arm support is improved. Effectively prevent the tearing of the outer arm of the trailing arm support, improve the structural strength of the trailing arm mount, and ensure the safety of the vehicle.
  • the connections in the present invention are all welded, the first plate 5.1 is connected to the sill inner panel 1 by a solder joint 77, and the intermediate slab 5.0 is connected to the trailing arm support outer panel 3 via three solder joints 7. , the second support plate 5.2 is connected to the trailing arm support outer plate 3 and the trailing arm support inner plate 2 through two welding points 7 in turn, and the flange 5.3 is sequentially connected through the two weld points 7 to the rear longitudinal beam 4 and the rear floor front.
  • bracket 1 is integrally stamped, that is, the first plate 5.1, the intermediate plate 5.0, the second plate 5.2 and the flange 5.3 are integrated. Bracket 1 looks like a "Z" font.
  • a manufacturing method of an independent suspension vehicle tow arm mounting structure includes the following steps: First, the tow arm support inner plate 2 and the tow arm support outer plate 3 are welded, and then welded to the bracket 5; Forming welding The sub-assembly, the splicing sub-assembly and the rear longitudinal beam 4 are welded to form a rear longitudinal beam sub-assembly, and the rear longitudinal beam sub-assembly is respectively welded to the rear floor front cross-member connecting plate 6 and the sill inner panel 1.
  • the trailing arm support inner panel 2 and the trailing arm support outer panel 3 are connected by 8 solder joints 7; and then connected to the bracket 5 through 5 solder joints 7; the solder subassembly is passed through 6 solder joints 7
  • the rear longitudinal beam sub-assembly and the rear floor front cross member connecting plate 6 pass through two welding points 7, and the rear longitudinal beam sub-assembly and the sill inner panel 1 are connected by a solder joint 7.
  • the inner and outer plates of the tow arm support of the present invention have a yield strength of 250 MPa to 290 MPa, and the stent has a yield strength of 120 MPa to 160 MPa.
  • the manufacturing method of the independent suspension vehicle towing arm mounting structure of the present invention the more specific processing steps are as follows: First, the trailing arm support inner panel 2 and the trailing arm support outer panel 3 are welded through 8 defects 7 Then, the intermediate support plate 5.0 and the trailing arm support outer plate 3 are welded by three welding points 7, and the second support plate 5.2 is connected to the tow arm support outer plate 3 and the tow by two welding points through two layers of welding.
  • the arm support inner plate 2, the flange 5.3 is connected by two layers of welding to the rear longitudinal beam 4 and the rear floor front beam connecting plate 6 through two welding points 7, and finally the first supporting plate 5.1 and the threshold are connected by a welding point 7.
  • Inner panel 1 the trailing arm support inner panel 2 and the trailing arm support outer panel 3 are welded through 8 defects 7
  • the intermediate support plate 5.0 and the trailing arm support outer plate 3 are welded by three welding points 7, and the second support plate 5.2 is connected to the tow arm support outer plate 3 and the tow by two welding points through two layers of
  • the present invention is applicable to a vehicle having an independent suspension, and the trailing arm on the suspension is mounted on the vehicle body through a towing arm mount of the vehicle body.
  • the trailing arm on the suspension is mounted on the vehicle body through a towing arm mount of the vehicle body.
  • the invention designs a reasonable structure by analyzing the force of the vehicle tow arm here, selects a suitable material for the support, and changes the structural stress concentration.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Body Structure For Vehicles (AREA)
  • Vehicle Body Suspensions (AREA)

Abstract

一种独立悬架汽车拖曳臂安装座结构及其制作方法，包括拖曳臂支座内板（2）、拖曳臂支座外板（3）及支架（5），支架（5）包括中间支板（5.0），中间支板（5.0）一端连接第一支板（5.1），另一端连接第二支板（5.2），中间支板一侧设有翻边（5.3）；第一支板（5.1）连接门槛内板（1），中间支板（5.0）连接拖曳臂支座外板（3），第二支板（5.2）依次连接拖曳臂支座外板（3）和拖曳臂支座内板（2），翻边（5.3）依次连接后纵梁（4）和后地板前横梁连接板（6）。制作方法为：首先把拖曳臂支座内板（2）和拖曳臂支座外板（3）焊接，再与支架（5）焊接后形成焊接分总成，焊接分总成与后纵梁（4）焊接组成后纵梁分总成，后纵梁分总成再分别与后地板前横梁连接板（6）和门槛内板（1）焊接。采用本发明的结构提高拖曳臂安装座结构强度，防止拖曳臂支座外板撕裂，保证汽车行驶安全性。

Description

一种独立悬架汽车拖曳臂安装座结构及其制作方法 技术领域
本发明涉及汽车领域， 特别涉及一种独立悬架汽车拖曳臂安装座结构及其制作方 法。 背景技术
随着汽车逐步走进平常百姓家庭， 汽车的使用工况也越来越复杂。 尤其是在一些 偏远山区， 路面状况较差， 道路陡峭、 凸凹不平、 砂石路、 搓板路、 车辙路和路面经 雨水冲刷存在大量的裸露石块等路况大量存在。 汽车在这些路面上行驶， 由于可能的 突然转向或紧急刹车， 从而使汽车受到巨大的负荷。
具有独立悬架的汽车， 悬架上的拖曳臂通过车身的拖曳臂安装座安装在车身上。 为了提高行驶安全性， 特别是提高在工况较差路面上行驶的安全性， 如当汽车在恶劣 路面上行驶或一个轮胎陷入凹坑， 而突然紧急制动， 或在下坡猛打方向盘且紧急制动， 或车轮驶上突起或道边石时， 都将产生巨大的负荷， 有时会导致汽车构件突发性严重 变形和破坏。
现有拖曳臂安装点结构还不能确保上述工况下的行驶安全性。 发明内容
本发明实施例的目的是针对上述现有技术的缺陷， 提供一种提高拖曳臂安装座结 构强度， 防止拖曳臂支座外板撕裂， 保证汽车行驶安全性的独立悬架汽车拖曳臂安装 座结构。
本发明的另一个目的是提供独立悬架汽车拖曳臂安装座结构的制作方法。
为了实现上述目的本发明采取的技术方案是：
一种独立悬架汽车拖曳臂安装座结构， 包括固定连接的拖曳臂支座内板和拖曳臂 支座外板， 其特征在于， 还包括支架， 所述支架包括中间支板， 所述中间支板一端连 接第一支板， 另一端连接与第一支板方向相反的第二支板， 所述中间支板一侧设有翻 边； 所述第一支板连接门槛内板， 所述中间支板连接拖曳臂支座外板， 所述第二支板 依次连接所述拖曳臂支座外板和拖曳臂支座内板， 所述翻边依次连接后纵梁和后地板 前横梁连接板。
所述连接为焊接。 所述第一支板通过一个焊点连接门槛内板， 所述中间支板通过三个焊点连接拖曳 臂支座外板， 所述第二支板通过两个焊点依次连接所述拖曳臂支座外板和拖曳臂支座 内板， 所述翻边通过两个焊点依次连接后纵梁和后地板前横梁连接板。
所述第一支板、 中间支板、 第二支板及翻边为一体结构。
所述支架为 " Z"字型。
所述拖曳臂支座内外板选择屈服强度为 250Mpa至 290Mpa材料， 所述支架选择 屈服强度为 120Mpa至 160Mpa材料。
本发明实施例提供的另一个技术方案是： 一种独立悬架汽车拖曳臂安装座结构的 制作方法， 包括以下步骤： 首先把拖曳臂支座内板和拖曳臂支座外板焊接， 再与支架 焊接后形成焊接分总成， 所述焊接分总成与后纵梁焊接组成后纵梁分总成， 所述后纵 梁分总成再分别与后地板前横梁连接板和门槛内板悍接。
所述拖曳臂支座内板和拖曳臂支座外板通过 8个焊点连接； 再与所述支架通过 5 个焊点连接； 所述焊接分总成通过 6个焊点与后纵梁焊接； 所述后纵梁分总成与后地 板前横梁连接板通过 2个焊点， 所述后纵梁分总成和门槛内板通过个悍点连接。
本发明实施例提供的另一个优选的技术方案是制作方法， 一种独立悬架汽车拖曳 臂安装座结构的制作方法， 包括以下步骤： 首先把拖曳臂支座内板和拖曳臂支座外板 通过 8个焊点连接， 再将中间支板和拖曳臂支座外板通过 3个焊点连接， 通过两层悍 将第二支板通过两个焊点焊接拖曳臂支座外板和拖曳臂支座内板， 再通过两层焊将翻 边通过两个焊点依次连接后纵梁和后地板前横梁连接板， 最后通过一个焊点依次连接 第一支板和门槛内板。
本发明适用于带有独立悬架的汽车， 具有以下优点：
1、 拖曳臂支座内外板选择屈服强度为 250Mpa至 290Mpa材料， " Z "字形支架选 择屈服强度为 120Mpa至 160Mpa材料， 部件容易冲压成型。 选择更高强度的材料不 会改变整个拖曳臂支座的应力分布。 反而会导致冲压成型困难， 并且增加成本。
2、 支座前部设计一个 " Z "字形支架， 分别将拖曳臂支座与车身门槛和后纵梁连 接，使拖曳臂支座所受的 X向力分别传到门槛和地板上，改善拖曳臂支座所受力分布。 有效防止了拖曳臂支座外板开裂失效， 保证了汽车行驶安全性。
3、 由于拖曳臂布置并不是完全沿着汽车 X方向， 与 X方向有一定的角度， 支架 靠近地板中部一侧设计一个焊接翻边， 然后靠近门槛的一端焊接在门槛内板上， 在拖 曳臂支座受力时， 支架对拖曳臂支座形成一个 Y向的拉力， 降低拖曳臂支座由于 X向 力分解导致拖曳臂支座绕整车坐标系 z轴方向向内旋转使拖曳臂支座撕裂的情况， 从 而有效防止拖曳臂支座外板撕裂失效， 保证了汽车行驶安全性。 附图说明
图 1是本发明实施例提供的独立悬架汽车拖曳臂安装座结构示意图；
图 2是图 1的分解示意图；
图 3是本发明实施例提供的支架结构示意图。
图中：
1门槛内板， 2拖曳臂支座内板， 3拖曳臂支座外板， 4后纵梁， 5支架， 5.0中间 支板， 5.1第一支板， 5.2第二支板， 5.3翻边， 6后地板前横梁连接板， 7焊点。 具体实施方式
为使本发明的目的、 技术方案和优点更加清楚， 下面将结合附图对本发明实施方 式作进一步地详细描述。
参见图 1， 一种独立悬架汽车拖曳臂安装座结构， 包括固定连接的拖曳臂支座内 板 2和拖曳臂支座外板 3 , 还包括支架 5, 支架 5包括中间支板 5.0， 中间支板 5.0— 端连接第一支板 5.1， 另一端连接与第一支板 5.1方向相反的第二支板 5.2， 中间支板 5.0—侧设有翻边 5.3 ; 第一支板 5.1连接门槛内板 1， 中间支板 5.0连接拖曳臂支座外 板 3， 第二支板 5.2依次连接拖曳臂支座外板 3和拖曳臂支座内板 2， 翻边 5.3依次连 接后纵梁 4和后地板前横梁连接板 6。
本发明实施例通过增加一个支架，使拖曳臂支座所受的 X向力分别传到门槛和地 板上， 改善拖曳臂支座所受力分布。 有效防止拖曳臂支座外板撕裂失效， 提高拖曳臂 安装座结构强度， 保证汽车行驶安全性。
参见图 1和图 3， 本发明中的连接均为焊接， 第一支板 5.1通过一个焊点 77连接 门槛内板 1， 中间支板 5.0通过三个焊点 7连接拖曳臂支座外板 3， 第二支板 5.2通过 两个焊点 7依次连接拖曳臂支座外板 3和拖曳臂支座内板 2,翻边 5.3依次通过两个焊 点 7依次连接后纵梁 4和后地板前横梁连接板 6。
为了达到更好的加强效果及便于加工， 参见图 3， 支架 1采用一体冲压成型， 即 第一支板 5.1、中间支板 5.0、第二支板 5.2及翻边 5.3为一体结构。支架 1外观类似" Z" 字型。
参见图 1， 本发明一种独立悬架汽车拖曳臂安装座结构的制作方法， 包括以下步 骤： 首先把拖曳臂支座内板 2和拖曳臂支座外板 3焊接， 再与支架 5焊接后形成焊接 分总成， 所述悍接分总成与后纵梁 4焊接组成后纵梁分总成， 所述后纵梁分总成再分 别与后地板前横梁连接板 6和门槛内板 1焊接。
其中， 拖曳臂支座内板 2和拖曳臂支座外板 3通过 8个焊点 7连接； 再与支架 5 通过 5个焊点 7连接； 所述焊接分总成通过 6个焊点 7与后纵梁 4焊接； 所述后纵梁 分总成与后地板前横梁连接板 6通过 2个焊点 7， 所述后纵梁分总成和门槛内板 1通 过个焊点 7连接。
本发明拖曳臂支座内外板选择屈服强度为 250Mpa至 290Mpa材料， 所述支架选 择屈服强度为 120Mpa至 160Mpa材料。 选择此范围内的材料， 部件容易冲压成型， 选择更高强度的材料不会改变整个拖曳臂支座的应力分布。反而会导致冲压成型困难， 并且增加成本。
参见图 2， 本发明独立悬架汽车拖曳臂安装座结构的制作方法， 更具体的加工步 骤如下： 首先把拖曳臂支座内板 2和拖曳臂支座外板 3通过 8个悍点 7焊接， 再将中 间支板 5.0和拖曳臂支座外板 3通过 3个焊点 7焊接，通过两层焊将第二支板 5.2通过 两个焊点 Ί依次连接拖曳臂支座外板 3和拖曳臂支座内板 2， 通过两层焊将翻边 5.3 通过两个焊点 7依次连接后纵梁 4和后地板前横梁连接板 6, 最后通过一个焊点 7连 接第一支板 5.1和门槛内板 1。
本发明适用于具有独立悬架的汽车， 悬架上的拖曳臂通过车身的拖曳臂安装座安 装在车身上。 为了提高行驶安全性， 特别是在工况较差情况下的安全性， 如当汽车在 恶劣路面上行驶或一个轮胎陷入凹坑， 而突然紧急制动， 或在下坡猛打方向盘且紧急 制动， 或车轮驶上突起或道边石时， 都将产生巨大的负荷， 有时会导致汽车构件突发 性严重变形和破坏。 本发明通过对汽车拖曳臂在此处的受力分析， 设计合理结构， 对 支座选择合适的材料， 改变结构受力集中度。 通过分析表明， 拖曳臂在拖曳臂安装座 处主要受汽车 X方向的纵向力。 结构设计时， 通过设计一个 "Z" 字形支架结构， 同 时将拖曳臂支座与车身门槛和后纵梁连接， 使其分担更多 X向力， 向门槛和地板上传 递， 同时支座前部 "Z" 字形支架使支座和车身门槛内板连接， 防止支座绕整车坐标 系的 Z轴方向旋转， 减轻安装座受力负荷， 从而降低支座开裂风险， 大幅度避免交通 安全事故。
以上所述仅为本发明的较佳实施例， 并不用以限制本发明， 凡在本发明的精神和 原则之内， 所作的任何修改、 等同替换、 改进等， 均应包含在本发明的保护范围之内。

Claims

权利要求书
1、一种独立悬架汽车拖曳臂安装座结构， 包括固定连接的拖曳臂支座内板和拖曳 臂支座外板， 其特征在于， 还包括支架， 所述支架包括中间支板， 所述中间支板一端 连接第一支板， 另一端连接与第一支板方向相反的第二支板， 所述中间支板一侧设有 翻边； 所述第一支板连接门槛内板， 所述中间支板连接拖曳臂支座外板， 所述第二支 板依次连接所述拖曳臂支座外板和拖曳臂支座内板， 所述翻边依次连接后纵梁和后地 板前横梁连接板。
2、根据权利要求 1所述的独立悬架汽车拖曳臂安装座结构， 其特征在于， 所述连 接为焊接。
3、根据权利要求 2所述的独立悬架汽车拖曳臂安装座结构， 其特征在于， 所述第 一支板通过一个焊点连接门槛内板，所述中间支板通过三个焊点连接拖曳臂支座外板， 所述第二支板通过两个焊点依次连接所述拖曳臂支座外板和拖曳臂支座内板， 所述翻 边通过两个焊点依次连接后纵梁和后地板前横梁连接板。
4、根据权利要求 1所述的独立悬架汽车拖曳臂安装座结构， 其特征在于， 所述第 一支板、 中间支板、 第二支板及翻边为一体结构。
5、根据权利要求 1或 4所述的独立悬架汽车拖曳臂安装座结构， 其特征在于， 所 述支架为 "Z"字型。
6、根据权利要求 1或 4所述的独立悬架汽车拖曳臂安装座结构， 其特征在于， 所 述拖曳臂支座内外板选择屈服强度为 250Mpa至 290Mpa材料， 所述支架选择屈服强 度为 120Mpa至 160Mpa材料。
7、一种权利要求 1所述的独立悬架汽车拖曳臂安装座结构的制作方法， 其特征在 于， 包括以下步骤： 首先把拖曳臂支座内板和拖曳臂支座外板焊接， 再与支架焊接后 形成焊接分总成， 所述焊接分总成与后纵梁焊接组成后纵梁分总成， 所述后纵梁分总 成再分别与后地板前横梁连接板和门槛内板焊接。
8、根据权利要求 7所述的制作方法， 其特征在于， 所述拖曳臂支座内板和拖曳臂 支座外板通过 8个焊点连接； 再与所述支架通过 5个焊点连接； 所述焊接分总成通过 6个焊点与后纵梁焊接； 所述后纵梁分总成与后地板前横梁连接板通过 2个焊点， 所 述后纵梁分总成和门槛内板通过个焊点连接。
9、 根据权利要求 7所述的制作方法， 其特征在于， 包括以下步骤： 首先把拖曳臂 支座内板和拖曳臂支座外板通过 8个焊点连接， 再将中间支板和拖曳臂支座外板通过 3 个焊点连接， 通过两层焊将第二支板通过两个焊点焊接拖曳臂支座外板和拖曳臂支 座内板， 再通过两层焊将翻边通过两个悍点依次连接后纵梁和后地板前横梁连接板， 最后通过一个悍点依次连接第一支板和门槛内板。
PCT/CN2012/076068 2011-07-18 2012-05-25 一种独立悬架汽车拖曳臂安装座结构及其制作方法 WO2013010403A1 (zh)

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