1. Measured Workpiece:

This measurement is performed on a precision rotor workpiece, which is mainly used in motors and power transmission systems to transmit torque and power. Its coaxiality, roundness, runout, and tooth accuracy directly affect operational stability, requiring a high-precision full-size dimensional inspection by a CMM.

2. Probe Configuration:

Renishaw PH10 motorized probe head + SP25 high-precision scanning probe is adopted: The PH10 can be positioned in multiple attitudes to access complex areas such as the rotor inner hole and blade gaps, avoiding stylus interference; the SP25 supports continuous scanning, efficiently collecting data points such as the rotor outer circle and curved surface profile, accurately evaluating geometric tolerances such as roundness, cylindricity, and profile tolerance, and balancing batch inspection efficiency and precision.

3. Clamping Tools:

High-precision three-jaw chuck combined with tailstock center is adopted: With the inner bore of the rotor main shaft as the datum, the three-jaw chuck clamps the reference surface of the outer circle, and the tailstock center presses firmly against the center hole of the end face to achieve rotary positioning, which ensures the coaxiality and stability of measurement and prevents deformation caused by clamping stress.

The Dilama high-precision bridge-type CMM is selected, which has temperature compensation and vibration suppression functions and can operate stably in workshop environments. Equipped with the PH10+SP25 probe, it realizes high-speed point data collection and continuous scanning, covering all key features of the rotor in a single measurement, and meeting the inspection requirements of precision rotating parts.

In the rotor inspection module of the CMM software, specialized inspection algorithms for core rotor features such as tooth profile, tooth trace, and tooth pitch are integrated. Users only need to input the key parameters of the rotor on the module interface, then establish the workpiece coordinate system through the main shaft inner bore and end face datum, and the module can automatically generate a complete inspection program to realize automated measurement of rotor tooth shape features.