Rigidity testing device for automotive bushing

The invention relates to a vehicle bushing rigidity testing device, which comprises a conical ring and a fixed ring matched with the conical ring, the matched relative positions of the conical ring and the fixed ring are fixed through a plurality of bayonet locks, and is characterized in that the cross section of the fixed ring is a regular N-polygon, the fixed ring is provided with N outer contour surfaces, one outer contour surface of the fixed ring is provided with a mounting hole, and the mounting hole is provided with a plurality of clamping pins. A pin hole is formed in the outer contour surface adjacent to the outer contour surface; n/2 mounting holes and N/2 pin holes are formed in the outer contour surface of the fixed ring, and 2N sliding teeth are uniformly arranged on the inner ring surface of the fixed ring; 2N deformation grooves are formed in the large end of the conical ring, 2N sliding grooves are formed in the small end of the conical ring, and the 2N deformation grooves correspond to the 2N