The invention discloses a tool for a toroidal field
magnet set for a
nuclear fusion device, belonging to a toroidal field
magnet set tool, wherein the fixed tool comprises an annular guide rail coaxially mounted on the inner wall of a host hall, the annular guide rail is coaxially arranged with a central column erected in the host hall, a plurality of
vacuum chamber hangers with one end mounted on the inner wall of the host hall are arranged in an inner
annular array of the annular guide rail, the bottom end of the
vacuum chamber hanger is used to hang the
vacuum chamber sector to the corresponding
welding assembly position; a radial beam arranged radially along the annular guide rail is also provided above the vacuum chamber hanger, one end of the radial beam is rotatably mounted in the top bearing of the central column, and the other end is mounted on the annular guide rail through a
tail drive
system, and can move in a circle along the top surface of the annular guide rail with the center of the central column, so that the toroidal field
magnet hoisted below the radial beam is sleeved on the outside of the corresponding vacuum chamber sector. The invention can greatly improve the
assembly efficiency and positioning accuracy of the toroidal field magnet of the
nuclear fusion device.