Injection molding machine with adjustable operation height

The injection molding machine comprises a bottom plate, air cylinders, a mounting seat, an injection molding machine body, a connecting block, a through opening, clamping grooves and a fixing mechanism, the air cylinders are fixedly connected to the four corners of the top of the bottom plate, the tops of the four air cylinders are fixedly connected through the mounting seat, and the injection molding machine body is arranged at the top of the mounting seat; connecting blocks are fixedly connected to the left side and the right side of the bottom of the injection molding machine body correspondingly, through openings are formed in the positions, corresponding to the connecting blocks, of the top of the mounting base, and the bottoms of the connecting blocks penetrate through the through openings and extend into the mounting base. Through mutual cooperation of the bottom plate, the air cylinder, the mounting base, the injection molding machine body, the connecting block, the through opening, the clamping groov