High-precision swing bolt detector

The utility model discloses a high-precision swing bolt detector, relates to the technical field of detectors, and solves the problem that an existing swing bolt detector cannot truly simulate the form change of a swing bolt during vibration. A high-precision swing bolt detector comprises a top disc; and the top disc is defined on the top surface of the rotating disc through a to-be-detected swingbolt and a to-be-detected nut. The device can simulate the form change of the oscillating bolt after being vibrated in use, the top disc and the rotating disc are fixed together through the oscillating bolt and the nut, and the track piece moves along the vibrating ring and is driven by the tension spring to fall to simulate the vibrating process when moving to the highest point of the vibratingring. After the experiment is completed, experimental data are obtained by measuring the distance changes of the nuts, located at the two ends of the top disc and the rotating disc, of the loose jointbolts, the experimental re