Auxiliary measurement method

The invention belongs to the technical field of machining, and provides an auxiliary measurement method, the detection method is based on an auxiliary measurement device, and the auxiliary measurement device comprises a measurement claw, a guide sleeve and a mandrel; the measuring claw comprises a measuring end, a clamping groove block and an extension rod, the measuring claw is L-shaped, the clamping groove block is arranged on the periphery of the measuring end, and the extension rod is arranged on the end face of one side of the measuring end; and the core shaft is positioned in the swing chamber body positioning shaft mounting hole. According to the measuring method, the distance between the combined annular groove and the positioning shaft hole of the pendulum bore body is adjusted to be on the same straight line by utilizing the measuring claw and the mandrel, so that the numerical value can be obtained only through one-time measurement originally after multiple times of measurement, and the measuring t