Antifatigue torsion beam for plate formation

Abstract

The invention relates to the field of automobile parts, in particular to an antifatigue torsion beam for plate formation. The beam comprises a beam body which is processed through a plate, and a firstclamping unit and a second clamping unit are arranged at the two ends of the plate respectively and integrally clamped in the formation step; the beam body is divided to two flaring segments, two transition segments and one middle segment, the middle segment is bent and is in an arch shape, the two transition segments are located at the two ends of the middle segment respectively, the two flaringsegments are located at the two ends of the transition segments respectively, the cross sections of the transition segments and the middle segment are in a V shape, and the depths of the V-shaped cross section shapes, from the middle of the middle segment to the transition segments, of the beam body are gradually reduced. The antifatigue capacity of the beam is improved.

Description

technical field [0001] The invention relates to the field of auto parts, in particular to an anti-fatigue torsion beam formed from sheet metal. Background technique [0002] The torsion beam is an important part of the automobile. During the operation of the automobile, it plays an important role in the shock absorption of the automobile, the transmission of loads, the reduction of the shaking of the vehicle, the provision of suitable freedom of movement for the wheels, and the assurance of the stability of the car body. to an important role. [0003] The torsion beam usually includes a crossbeam and a longitudinal arm. The longitudinal arm is welded at both ends of the crossbeam. During the operation of the car, the welding position of the longitudinal arm and the crossbeam is prone to breakage because the load of the car will change irregularly and irregularly. , so the life of the torsion beam is shorter, and the subsequent maintenance cost is relatively high. [0004] ...

AI Technical Summary

Problems solved by technology

The welding step of sheet metal forming refers to welding the gap between the two bending parts through welding equipment, so that the beam is finally in a closed state, but before welding, the beam is bent by the sheet metal, and the beam has recovery deformation In this way, during the welding process, the two bending parts are easy to move away from each other, which affects the efficiency and quality of welding

If the two bending parts are far away from each other during the welding process, the welded part will be elongated, the thickness of the welded part will be correspondingly reduced, the strength of the welded part will be reduced, and the beam will be easily broken in the later work

And during the welding process, the welding equipment may touch the bending part, or the bending part will be subjected to a certain welding impact force during welding, and the bending part will also undergo a certain displacement under the action of this impact force. It is not conducive to improving the accuracy of welding

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