The Development Of Testing Equipment For Automotive Rear Axle Assembly

This paper developed a testing equipment for FAW-Volkswagen A4 (Polaris) automobile rear axle, which is used to measure the horizontal and vertical angle of two mounting surfaces and the distance between the mounting surfaces. The mechanical system is made up by the auxiliary positioning mechanism, the main positioning mechanism, angle measurement mechanism, locking mechanism etc. The differential transformer displacement sensors are used to measure the angle and distance parameters, the AC6112-type A/D acquisition card is used to data collection. The Visual Basic 6.0 and Access databases are used to develop the application software systems, the old measured data can be queried and maintenance. This paper has developed a vehicle rear axle specialized testing equipment not only has the measurement functions, measurement data can also be processed to X-bar and R-control chart, carried out CPK (Process Capability Index) calculation.