Analysis of thermal dAnalysis of thermal deformation and design of machine body structure of M52120 guideway grinder

On the basis of a long period observation upon the existing machine tools in this centre and a discussion on the causes of thermal deformation and its influnence on the precision of the machine tools, a new machine body structure of an M52120 guideway grinder was designed. According to the inspection of the sample machine, its machining precision can be greatly improved: linearity reached 0.0025 mm/m on the horizontal surface, and 0.003 mm/m on the vertical plane; its stability can be kept to 0.0027 mm/m.