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为了提高汽车车身结构性破坏的修理精度、保证汽车修复后的安全性和可靠性,分析了汽车纵向碰撞、侧碰撞的车身结构理想特性及变形模式,提出了利用多功能固定器和夹具、精确车身三维测量系统、全方位拉伸装置的车身修复流程、原则和方法.碰撞修复实例表明:修复后车身各安装点的数据偏差值达到±3 mm,装配后车轮定位值符合标准.这种基于车身三维测量的全方位拉伸校正方法可以有效提高碰撞汽车的修复质量、降低返修率.
In order to improve the repair accuracy of structural damage of automobile body and ensure the safety and reliability of the automobile after it is repaired, the ideal characteristics and deformation modes of automobile body structure with longitudinal collision and side collision are analyzed. The multi-functional fixtures and fixtures are proposed to be precise Body three-dimensional measurement system, omni-directional stretching device body repair process, principles and methods.Case restoration example shows that: after the repair of the body at the installation point of the data deviation of ± 3 mm, the wheel alignment value after assembly standards.This based on Body dimensional measurement of the full range of tensile correction method can effectively improve the quality of the collision car repair and reduce the repair rate.