Automobile overall dimension automatic measuring instrument

The utility model relates to the technical field of automobile profile measurement, in particular to an automobile profile size automatic measuring instrument which comprises a connecting support column. The suspension supporting column is connected to the connecting supporting column in a sliding mode, the lifting driving source is arranged on the connecting supporting column and used for driving the suspension supporting column to ascend and descend, and the laser scanner is arranged on the suspension supporting column and used for scanning the outer contour of a vehicle. The laser scanner has the advantage that workers do not need to climb high when carrying out regular dust removal operation on the laser scanner. 本申请涉及汽车外廓测量技术领域，尤其是涉及一种汽车外廓尺寸自动测量仪，其包括连接支柱，滑移连接于所述连接支柱上的悬挂支柱、设于所述连接支柱上用于驱动所述悬挂支柱升降的升降驱动源、设于所述悬挂支柱上用于扫描车辆外廓的激光扫描仪。本申请具有便于工作人员对激光扫描仪进行定期清灰作业时不需要爬高的效果。