Device and method for measuring blade tip size of compressor working blade

The invention relates to a device and method for measuring the blade tip size of a compressor working blade. The device comprises a base, a support is connected to the base through bolts, and a sliding gauge seat is connected to the support through screws. Slideways are formed at the two sides of the top, a groove is formed on the bottom surface of the gauge seat and is in sliding fit with the sliding gauge seat, and a threaded hole is formed on the side surface of the gauge seat. The gauge seat can be fastened at any position through the threaded hole, a catch is fastened at the end part of the slideway of the sliding gauge seat, and a dial gauge is fixed at the front end of the gauge seat. An unthreaded hole is formed in the rotation center of the lower portion of the support, one end ofa rotating shaft is fixed in the unthreaded hole of the support, and the other end of the rotating shaft is inserted into a bushing. The support is fixed outside the bushing and can rotate around therotating shaft, and a gro