Automobile door gap surface difference control system and control method

Abstract

The invention discloses an automobile door gap surface difference control system, comprising: a measurement module for measuring the gap surface difference between welding and assembly, a simulation calculation module, and an average deviation of the gap surface difference for actual door welding and assembly, Extremely poor data processing module, a control module for judging whether the output of the data processing module meets the requirements and performing action S4-1 or S4-2, and an execution unit for performing welding, painting and final assembly. The present invention also provides a control method for the vehicle door gap surface difference control system, including determining the design value {H} of the vehicle door welding gap surface difference; Whether the mean deviation and extreme difference of the gap of the final assembly meet the requirements, if so, output the final design value of the gap of the door welding gap, if not, then cyclically adjust and correct {H}. The invention improves the passing rate of the gap surface difference after the vehicle door is assembled.

Description

technical field [0001] The invention relates to the technical field of automobile assembly, in particular to an automobile door gap surface difference control system and a control method thereof. Background technique [0002] In the analysis of the manufacturing process of the whole vehicle, it can be found that from welding to final assembly, the process variables experienced by the body are many, which have a great influence on the gap and surface difference state of the door area. At present, the door assembly and adjustment is completed in the assembly and adjustment line of the welding workshop. If the door assembly and adjustment is carried out with the vehicle DTS as the target, the state of the welded body and the state of the final assembled vehicle will vary greatly, and the door will still be closed when the final assembly is off the assembly line. It is necessary to carry out a substantial adjustment and repair, and the debugging cycle is long. The main factors ...

AI Technical Summary

Problems solved by technology

Existing technology 1 only solves the problem of car door sinking, but does not solve the situation that the door frame is stretched out by the reaction force of the sealing strip, and the operation is relatively cumbersome. It is necessary to weigh parts, calculate the center of gravity, and make counterweights, and it must wait until the real object is available. In addition, the front and rear door counterweights are generally 10-15 kg. The welding door adjustment personnel install and remove many times a day, which is labor-intensive, and the calculation of the center of gravity and the position of the counterweight may be inaccurate, resulting in the inability to reproduce the real one. working conditions

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