Accurate measurement of inaccessible points - using measuring machine fitted with special arms with feelers at their ends, applied to special measurement points

摘要

The special points consist of dimples on the metal plating inside a motor vehicle body. Their relative positions are monitored during production, using a measuring machine. Special arms are added to the machine. They can enter inside the car, and their ends are provided with a test pin. They can be applied to measurement points (11) provides almost without tolerances specially for the measurement. The arm transmits them to the measuring machine coordinates of points so measured.