Mobile phone lens central axis adjusting device

The utility model discloses a central axis adjusting device for a mobile phone lens, which comprises an adjusting assembly, a clamping seat fixedly arranged at the center of the top end of the adjusting assembly, and four fastening assemblies which are annularly arranged at the top end of the adjusting assembly and are fixedly connected with the clamping seat, a sliding groove allowing the T-shaped plate to slide is formed in the center of the top end of the fixing plate, a circular groove allowing the air cylinder to be fixedly installed is formed in one side of the sliding groove, a piston rod of the air cylinder is fixedly connected to the T-shaped plate, the air cylinder can push the T-shaped plate to move, a supporting plate is constructed on one side of the top end of the T-shaped plate, and a plurality of circular holes are formed in the top end and the bottom end of one side of the supporting plate at equal intervals. The mobile phone lens central axis adjusting device can fix a product from four dire