The subframe can be regarded as the skeleton of the front and rear axle and is a component of the front and rear axle.
The sub-frame is not a complete frame, but only supports the front and rear axle and suspension bracket, so that the axle and suspension are connected with the "front frame" through it, which is habitually called the "sub-frame".
The role of the auxiliary frame is to block vibration and noise and reduce its direct entry into the carriage, so most of them appear in luxury cars and off-road vehicles, and some cars also install the auxiliary frame for the engine.
The suspension of the traditional load-bearing body without subframe is directly connected to the body steel plate. Therefore, the suspension rocker arm mechanism of the front and rear axle are spare parts, not assembly. After the birth of the subframe, the front and rear suspension can be assembled on the subframe to form a axle assembly, and then the assembly is installed together on the body.
The subframe of a fuel vehicle is usually made of high-strength and high-toughness metal materials, which can meet the requirements of the vehicle under various working conditions. The use of new materials (such as high-strength steel, aluminum alloy, etc.) can reduce the weight of the subframe and improve the fuel economy of the vehicle.
Before processing, detailed process design is required. This includes determining the structural form, size specifications, connection method, etc. of the subframe. The process design needs to comprehensively consider factors such as the overall layout, performance requirements, and manufacturing cost of the vehicle.
Processing process of machining center: Drill the required holes on the components for subsequent assembly and connection. The components are further milled to achieve the required accuracy and surface quality.
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