Foundation positioning, replacing and assembling process method for steam turbine no-load test bed

The invention discloses a turbine no-load test bed foundation positioning, replacing and assembling technological method, and relates to the technical field of turbine assembling. The invention aims to solve the problems that the accuracy and the stability of foundation positioning and replacement of a plurality of turbines of the same model and a test bed during installation of a steam turbine in a no-load test cannot be ensured by an existing assembly process method, and the production and manufacturing cost is increased, so that the installation period is prolonged. A conventional installation tool cushion block is adopted for foundation positioning replacement, and the production and manufacturing cost is reduced; the basic positioning replacement machining amount is transferred to a conventional mounting tool mounting cushion block, and the structural strength and mechanical impedance of a basic cushion box are not affected; the replacement mode is convenient to arrange, the workload is included in the n