Adjustable stone pasting auxiliary tool

The utility model discloses an adjustable stone pasting auxiliary tool which comprises a bottom plate, a top plate is arranged at the top of the bottom plate, a threaded hole is formed in the top plate, a distance adjusting screw rod is in threaded connection with the interior of the threaded hole, the bottom of the distance adjusting screw rod penetrates through the threaded hole and is rotationally connected with the bottom plate, a fastening assembly is installed on the distance adjusting screw rod, and the fastening assembly is detachably connected with the top plate. A horizontally-arranged through groove is formed in the top plate, a transition groove right opposite to the through groove is formed in the top of the bottom plate, a limiting groove is formed in the bottom of the transition groove, a limiting block is slidably connected into the limiting groove, a vertically-arranged steel plate is fixedly connected to the top of the limiting block, and the top of the steel plate sequentially penetrates th