Vertical axis zoom lens assembly clamping device

The invention discloses a vertical axis zoom lens set clamping device. The device comprises a lens group, a connecting assembly, a supporting frame, a supporting plate and a piezoelectric ceramic linear positioner. The two sides of the lens group are installed in the corresponding supporting frames through connecting assemblies, and the supporting frame on each side of the lens group is fixedly installed on the corresponding piezoelectric ceramic linear positioner through a supporting plate. And the bottom surface of the piezoelectric ceramic linear positioner is fixed on the base through a screw. The piezoelectric ceramic linear positioners on the two sides of the lens group move close to or away from each other to drive the lens group on the supporting frame to generate vertical axis displacement, the optical axis of the lens group is fixed, and precise vertical axis zooming of the lens group is carried out. According to the clamping structure, it is guaranteed that the multiple pairs of lenses of the verti