Cutting mechanism for water tank main board machining

The utility model relates to the field of cutting tools, and discloses a cutting mechanism for water tank mainboard machining, which comprises a base, guide rails are fixedly connected to the left side and the right side of the top end of the base, a plurality of pulleys are slidably connected to the interiors of the pulleys, and a cutting table is fixedly connected to the top ends of the pulleys. First threaded rods are in threaded connection with the left and right ends of the cutting table, the bottom ends of the first threaded rods penetrate through the inner walls of the left and right ends of the cutting table and are fixedly connected with pressing plates, a push rod is fixedly connected to the middle of the front end of the cutting table, and fixing blocks are fixedly connected to the left and right sides, close to the guide rail, of the top end of the base. According to the water tank main board cutting device, the water tank main board is firstly fixed from the two sides through the first threaded r