Connecting plate for upper and lower plates of automobile auxiliary front frame

Abstract

The invention provides a connecting plate for upper and lower plates of an automobile auxiliary front frame. The connecting plate is characterized by comprising round holes, mounting plates, a right cross beam, a rear mounting point, a suspension control arm, a front mounting point, a pipeline, a connecting plate body, longitudinal beam lower plates, cushion plates, a front arm, longitudinal beamupper plates, a left cross beam, a boss, an upper end cover and a rear cross beam, wherein the bottom sides of the lower parts of the round holes are fixedly connected with the top sides of the upperparts of the mounting plates, the right cross beam is fixedly arranged on one sides of the upper parts of the mounting plates, the rear mounting point is fixedly arranged at the front end of the lowerpart of the right cross beam, the suspension control arm is fixedly arranged at one end of the front part of the rear mounting point, the front mounting point is fixedly arranged on one side of the front end of the suspension control arm, and the pipeline is fixedly arranged at one end of the rear side of the front mounting point. By arranging upper folded edges, through holes, bottom plates, grooves, reinforcing ribs and lower folded edges, the strength and rigidity of left and right longitudinal beam bodies are prevented from being affected by cracking and stress concentration at the mounting point of the suspension control arm.

Description

technical field [0001] The invention relates to the field of connecting plates for upper and lower plates, in particular to a connecting plate for upper and lower plates of an automobile auxiliary front frame. Background technique [0002] At present, the front sub-frame of the automobile load-bearing body is used to install the powertrain, chassis steering, and suspension system components. The longitudinal beam constitutes a square frame structure as a whole; the left and right longitudinal beams are respectively provided with suspension control arm installation points. In order to meet the rigidity and strength requirements, the front subframe is usually made of high-strength steel plate, but the deep-drawing performance of high-strength steel plate is poor, which is not conducive to stamping and forming, and it is easy to install on the suspension control arms of the left and right longitudinal beams Cracks and high stress concentration at the point will affect the stre...

AI Technical Summary

Problems solved by technology

In order to meet the rigidity and strength requirements, the front subframe is usually made of high-strength steel plate, but the deep-drawing performance of high-strength steel plate is poor, which is not conducive to stamping and forming, and it is easy to install on the suspension control arms of the left and right longitudinal beams Cracks and high stress concentration at the point will affect the strength and stiffness of the left and right longitudinal beams, and will eventually have a great impact on the fatigue performance of the front subframe. At the same time, in the existing front subframe technology, there are still upper and lower plates. It is easy to fall off and the connection is not firm, resulting in the overall damage and fall off of the auxiliary front frame

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