Granite machine tool guide rail mounting structure

The utility model discloses a granite machine tool guide rail mounting structure, and relates to the technical field of machine tool guide rails, the granite machine tool guide rail mounting structure comprises a machine base, a groove is formed in the top of the machine base, a granite guide rail is movably connected in the groove, and two sets of fixing blocks symmetrically arranged at equal intervals in the length direction of the granite guide rail are fixedly connected to the top of the machine base; and a plurality of fixed inserting grooves which are formed in the length direction of the granite guide rail at equal intervals are formed in the two sides of the granite guide rail. The fixing insertion rods can be inserted into the fixing insertion grooves through the elastic force of the reset springs on the fixing rings so as to be matched with limiting of the grooves to fix and install the granite guide rails on the machine base, the granite guide rails can be positioned through the positioning rods an