Method for determining locations of supporting points for a machine tool

A method for determining locations of supporting points for a machine tool, comprising steps of:

• providing the machine tool that includes a base provided with a guide rail unit, and a plurality of components disposed on the base;
• providing a computer device that stores:
• a machine tool model that relates to the machine tool and that includes a plurality of model members respectively corresponding to the base and the components of the machine tool, the model members including a guide rail member unit that corresponds to the guide rail unit;
• component weight information for the model members, the component weight information relating to weights of the base and the components of the machine tool;
• a first coordinate interval defined with respect to a first axis in relation to the machine tool model, the first coordinate interval relating to a location of a first supporting point to be determined for the machine tool model with respect to the first axis;
• a second coordinate interval defined with respect to the first axis, the second coordinate interval relating to locations of a second supporting point and a third supporting point to be determined for the machine tool model with respect to the first axis;
• and
• a third coordinate interval defined with respect to a second axis transverse to the first axis in relation to the machine tool model, the third coordinate interval relating to locations of the second and third supporting points for the machine tool model with respect to the second axis;
• acquiring a plurality of test coordinate sets for the first, second and third supporting points based on the first coordinate interval, the second coordinate interval and the third coordinate interval, each of the test coordinate sets including multiple coordinate values that conform to the first, second and third coordinate intervals, respectively;
• calculating, by the computer device for each of the test coordinate sets, a first deformation index value that corresponds to the guide rail member unit and that relates to assessment of a deformation level of the guide rail unit based on at least one of the plurality of test coordinate sets, the machine tool model and the component weight information;
• acquiring, by the computer device and based on the test coordinate sets and the corresponding first deformation index values, a first deformation index equation that is used to calculate a first assessed deformation index value in response to an arbitrary coordinate set for the first, second and third supporting points;
• calculating, by the computer device, an optimal coordinate set for the first, second and third supporting points based on the first deformation index equation, the optimal coordinate set corresponding to a minimum first assessed deformation index value with respect to the first deformation index equation;
• and
• installing support components for the machine tool respectively at the first, second and third supporting points corresponding to the optimal coordinate set.