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Method for straightening cross-beam of car and apparatus thereof

An automobile beam and straightening technology is applied in the field of automobile beam straightening and its equipment, which can solve the problems of inability to eliminate internal stress, deviation and rollover, and performance degradation of the beam, so as to eliminate vibration and re-deformation or cracking, and ensure the straight line. Good consistency of degree and verticality and riveting force

Inactive Publication Date: 2008-01-02
申勇
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AI Technical Summary

Problems solved by technology

[0002] At present, most of the deformed car beams are scrapped, which causes a lot of waste. Although in some car repair stations, the deformed car beams are also straightened, and the overall correction is generally used. This method cannot eliminate internal defects caused by the deformation of the car beams. Stress, so that the corrected girder is prone to breakage or deformation under the action of stress after a period of use, which will easily cause the vehicle to tremble during driving, deviation and rollover accidents during braking.
Some use thermal cutting to remove partially deformed and scrapped rivets. After re-riveting, this method is likely to cause internal stress between the girder and other beams, resulting in a decline in the performance of the reassembled girder.
Since only the deformed or damaged parts and rivets are replaced, after reassembly, the riveting force of the new and old rivets is inconsistent, which destroys the overall design vibration frequency of the girder, and the overall vibration consistency is poor, which easily leads to the breakage of the girder
The existing straightening equipment of automobile girders cannot effectively prevent the new deformation of the girder during the straightening process, nor can it straighten the scrapped deformed girders. degree is also difficult to guarantee

Method used

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  • Method for straightening cross-beam of car and apparatus thereof

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Embodiment Construction

[0020] As shown in Figure 1-3: Automobile girder straightening method and its equipment, the method described is to remove all the rivets connected between the parts of the deformed girder by cold dismantling, and then remove the dismantled main girder and the outer surface of the beam Oil stains, remove the burrs around the rivet holes, and then use the hammering method to check the cracks of each component. For parts with cracks and cracks, use triangular welding to open grooves at the cracks, and use repair welding for all damaged holes on the beam. Drill the hole in situ after plugging by the method, and the size of the drill hole is the same as the original hole before the damage. The disassembled parts are straightened one by one on the straightening equipment by cold straightening method and restored to their original shape. The straight method is to straighten without heating, and reset the deformed parts’ facade and the plane perpendicular to it to restore the original...

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Abstract

A method for straightening the deformed frame of car includes such steps as detaching, straightening the deformed parts, repairing the damaged parts by welding and redrilling, ageing, assembling with screw bolts and nuts, and cold rivetting by using rivets to replace the screw bolts and nuts. Its apparatus is also disclosed.

Description

1. Technical field [0001] The invention relates to a straightening method and equipment for automobile girders, which are suitable for straightening method and equipment for bent and deformed automobile girders. 2. Background technology [0002] At present, most of the deformed car beams are scrapped, which causes a lot of waste. Although in some car repair stations, the deformed car beams are also straightened, and the overall correction is generally used. This method cannot eliminate internal defects caused by the deformation of the car beams. Stress makes the corrected girder easy to break or deform under the action of stress after using for a period of time, which will easily cause the vehicle to tremble during driving, deviation and rollover accidents during braking. Some use the thermal cutting method to remove the partially deformed and scrapped rivets. After re-riveting, this method is likely to cause internal stress between the girder and other beams, resulting in a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P6/00B21D1/14
Inventor 申勇
Owner 申勇
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