Temperature compensation device and method for mold shell of anti-gravity high-temperature alloy pressure-regulating precision casting equipment

The invention discloses a mold shell temperature compensation device of anti-gravity high-temperature alloy pressure-regulating precision casting equipment, which comprises a first power source fixedly connected to the top of a mold chamber and capable of synchronously driving two groups of transmission components; the two transmission assemblies are symmetrically distributed on the inner side wall of the mold chamber. The lifting fixing frame is fixed between the two transmission assemblies and can move up and down along the two transmission assemblies. The first thermal insulation structure is fixed in the mold chamber, is connected with an external power supply through a cable, and can heat and insulate the internal space according to an instruction of an upper computer; the second heat preservation structure is of a two-half type tubular structure, and the two half structures of the second heat preservation structure are driven by two horizontal driving devices to be separated or closed. The two horizonta