白车身关键分总成合格率提升流程

The Process of Improving the Qualification Rate of the Key Sub-assembly of the Body-in-white

汽车白车身是由100多个分总成拼接而成,其中关键分总成大约有20多个,这些关键分总成作为白车身重要组成部分,同时也是底盘及各种功能零件关键安装点的集中区域,分总成的焊接质量,尺寸状态与白车身三坐标合格率、总装装配精度等有密不可分的联系,进而影响整车各项性能表现,所以分总成尺寸合格率控制是白车身制造技术的重要环节。本文通过PDCA循环质量提升方法,包含现状调查、原因分析、措施制定、效果检查等相关内容以及在提升过程中夹具调试技巧分析相关内容,提升分总成合格率,确保白车身满足各项功能要求。

The car body-in-white is composed of more than 100 sub-assemblies,of which there are about 20 key sub-assemblies.These key sub-assemblies are an important part of the body-in-white,as well as the key installation of the chassis and various functional parts.The point concentration area,the welding quality of the sub-assembly,and the size state are inextricably linked with the three-coordinate qualification rate of the body-in-white,and the assembly accuracy of the final assembly,etc.,affects the performance of the entire vehicle,so the sub-assembly size qualification rate control is an important part of the body-in-white manufacturing technology.This article uses the PDCA cycle quality improvement method,including status investigation,cause analysis,measure formulation,effect inspection and other related content,as well as fixture debugging skills analysis related content in the upgrading process,to improve the sub-assembly qualification rate and ensure that the white body meets various functional requirements.