Vehicle, its rear subframe, and method for manufacturing the rear subframe
A technology of a rear subframe and a manufacturing method, applied in the field of vehicles, can solve the problems of complex manufacturing process and low manufacturing precision of the rear subframe, and achieve the effect of simplifying the manufacturing process and improving the manufacturing precision.
Active Publication Date: 2019-11-01
SAIC MOTOR
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Problems solved by technology
[0009] One of the problems to be solved by the present invention is: the manufacturing process of the existing rear sub-frame is relatively complicated, and the manufacturing precision is low
Method used
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Embodiment Construction
[0084] As mentioned above, the manufacturing process of the existing rear sub-frame is relatively complicated and the manufacturing precision is low.
[0085] In order to solve the above problems, the present invention provides an improved rear sub-frame, in which the left and right longitudinal beams are integrated, and the mounting bracket for fixing the suspension system is connected with the left and right longitudinal beams. At least one of the beams is integrally formed, and the left side beam and all first mounting brackets on the left side beam can be formed simultaneously in the same step, and the right side beam and all first mounting brackets on the right side beam can also be formed simultaneously in the same step. The mounting bracket not only simplifies the manufacturing process of the rear sub-frame, but also avoids deformation caused by welding the first mounting bracket to the left and right longitudinal beams, thereby improving the manufacturing accuracy of th...
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The invention provides a vehicle, a rear auxiliary vehicle frame thereof and a manufacturing method of the rear auxiliary vehicle frame. The rear auxiliary vehicle frame comprises a front transverse beam, a rear transverse beam, a left longitudinal beam, a right longitudinal beam and a plurality of first mounting supports. The front transverse beam and the rear transverse beam are arranged in the vehicle length direction in a spaced mode. A left longitudinal beam and a right longitudinal beam which are integrated are arranged in the vehicle width in a spaced mode. The two ends of the left longitudinal beam and the right longitudinal beam are fixed to one ends of the front transverse beam and the rear transverse beam correspondingly. The multiple first mounting supports and at least one of the left longitudinal beam and the right longitudinal beam are integrally formed, and at least one of the first mounting supports is used for fixing a suspension system onto the rear auxiliary vehicle frame. In the vehicle, the rear auxiliary vehicle frame thereof and the manufacturing method of the rear auxiliary vehicle frame, the manufacturing technique of the rear auxiliary vehicle frame is simplified, deformation caused by the fact that the first mounting supports are welded to the left longitudinal beam and the right longitudinal beam is avoided, so that the manufacturing accuracy of the rear auxiliary vehicle frame is improved. Additionally, the rear auxiliary vehicle frame is of a full-aluminum-alloy structure, and the light weight of the vehicle is achieved.
Description
technical field [0001] The invention relates to the technical field of vehicles, in particular to a vehicle, a rear subframe and a method for manufacturing the rear subframe. Background technique [0002] The rear subframe is an important part of the upper chassis of the vehicle, and the suspension system is fixed to the body through the rear subframe. Because the rear subframe has the following advantages, it has been widely used in vehicles: it can bring good suspension connection stiffness; it can reduce the vibration transmitted from the road surface and bring good comfort; the suspension The parts in the suspension system are turned into assemblies, which improves the versatility of the suspension system, reduces the research and development cost, and reduces the assembly cost of the suspension system. [0003] Such as figure 1 As shown, an existing rear sub-frame includes a front beam 1 , a rear beam 2 , a left longitudinal beam 5 and a right longitudinal beam 8 . A...
Claims
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IPC IPC(8): B62D21/02B23P15/00
CPCB23P15/00B62D21/02
Inventor 易斌张宏李剑江洲张元伟李思明赵雪利王玉洁骆建军李根
Owner SAIC MOTOR