Small-size ultra-narrow high-precision alignment platform

The utility model discloses a small-size ultra-narrow high-precision alignment platform, which comprises a bearing plate, a bottom plate and an alignment mechanism arranged between the bearing plate and the bottom plate, and is characterized in that the alignment mechanism comprises two groups of transmission modules, a screw rod group, a motor seat, a servo motor and an induction unit, the sensing unit can be connected to the bottom plate; the transmission module comprises an upper plate, a lower plate, a crossed roller guide rail and a crossed roller bearing, the lower plate is connected with the bottom plate through the crossed roller guide rail and can conduct linear transmission, and the lower plate is connected with a lead screw set, a motor base and a servo motor through a driving block; the upper plate is rotatably connected with the bearing plate through the crossed roller bearings, and the requirement for high precision of the alignment platform is met through the use of the high-precision crossed r