The Application Practice of Inner Diameter Pneumatic Probe in Automobile Manufacturing

The selection of the nozzle shape of inner diameter pneumatic probe, the number of nozzles and the amount of nozzle sinking design have a great effect on the uncertainty of the inner hole diameter measurement. According to the structural characteristic of tested part, the scientific design of the machining technology and the application requirements is to ensure the key to measurement accuracy of the inner diameter; In addition, how to use the inner diameter pneumatic meter correctly in the production process, how to change the pneumatic probe correctly, how to reduce the influence of inner hole surface roughness on the measurement results is also an important measure to ensure the accuracy of the inner diameter measurement; one to one reply is given in this paper, to design inner diameter pneumatic probe and to use in the site has certain guidance significance.