High-precision horizontal lifting Z shaft

The utility model discloses a high-precision horizontal lifting Z shaft which comprises a mounting base, a horizontal lifting working plate and a lifting mechanism, wherein the horizontal lifting working plate and the mounting base are horizontally arranged; the lifting mechanism is arranged on the mounting base; the periphery of the horizontal lifting working plate is connected with the mounting base through a plurality of transportation fixing devices; the lifting mechanism comprises a jacking inclined block, a conveying inclined block arranged below the jacking inclined block, a linear guide rail arranged below the conveying inclined block and a servo motor. The servo motor is connected with the conveying inclined block through a ball screw; the jacking inclined block and the conveying inclined block are each of an inclined building structure. And an upper inclined guide rail matched with the jacking inclined block is arranged on the upper inclined surface of the conveying inclined block. According to the