Pneumatic device for measuring shift fork hole axis position degree

The invention provides a pneumatic device for measuring shift fork hole axis position degree. The pneumatic device mainly comprises a pneumatic plug gauge, a system installation support, an electromechanical transmission structure, a physical detection device and a data acquisition device. The pneumatic plug gauge converts change of pressure into size amount or displacement amount when carrying out measurement, thereby realizing measurement of diameter of a shift fork hole; the system installation support is used for installation of various electrical devices; the electromechanical transmission structure is mainly used for realizing transmission of a series of mechanical structures, such as a screw slide table; the physical detection device is mainly used for detecting the pressure duringshift fork spatial positioning and air pressure during measurement of the pneumatic plug gauge; and the data acquisition device is mainly used for collecting the pressure during shift fork spatial positioning and the air pres