High-precision machine tool accompanying constant-temperature protection device special for machine tool

The utility model discloses a high-precision machine tool accompanying constant-temperature protection device special for a machine tool. Fixed on accompanying machine tool, the device comprises a constant-temperature protection box and a water cooler, the constant-temperature protection box comprises a cuboid frame composed of aluminum alloy sections. Aluminum alloy plates are respectively fixedon six surfaces of the cuboid frame; the outer end face of the aluminum alloy plate is sequentially provided with a flame-retardant heat preservation plate and a heat preservation wood plate from inside to outside, wherein the flame-retardant heat preservation plate and the heat preservation wood plate are fixed to the aluminum alloy profiles on the six faces of the cuboid frame. Cavities are reserved between the aluminum alloy plates on the six faces of the cuboid frame and the flame-retardant heat preservation plates. A metal water pipe is laid in the cavity; the metal water pipes are fixedto the outer end faces of