Full life cycle-based numerical control machine tool sustainability evaluation method

Abstract

The invention relates to a full life cycle-based numerical control machine tool sustainability evaluation method. Firstly, life cycle stages of a numerical control machine tool are divided into a design stage, a manufacturing stage, an assembly stage, a transportation stage, a use stage, a recovery stage and a waste treatment stag; then influence factors of environmental, economic and social factors of each life cycle stage are identified; qualitative analysis and quantitative analysis are performed on the factors; a comprehensive evaluation method based on TOPSIS is established; product sustainability evaluation indexes and a quantitative method thereof are provided; a quantitative mathematical model is built; quantitative indexes are quantified in a grade division mode; a numerical control machine tool sustainability index SI of a numerical control machine tool sustainability evaluation process is adopted as a comparison standard of a to-be-evaluated object; a relative comparison result is provided; and values of different dimensions and different time points or time periods are used for performing calculation and comparison.

Description

technical field [0001] The invention relates to an evaluation method of a numerically controlled machine tool, in particular to a method for evaluating the sustainability of a numerically controlled machine tool based on a full life cycle. Background technique [0002] With the development trend of high complexity and high performance of intelligent manufacturing system, higher requirements are put forward for the high speed, precision, intelligence, compound, green and reliability of CNC equipment. At the same time, global energy and resource consumption is gradually increasing, especially problems such as the sharp decrease in the total amount of non-renewable resources, the deterioration of the ecological environment, and the increasing carbon dioxide emissions. Among them, numerical control equipment is one of the indispensable tools for manufacturing products. Due to its large size and weight, the mass of moving parts and the large movement stroke during the working pro...

AI Technical Summary

Problems solved by technology

At present, the sustainability evaluation of CNC machine tools has the following problems: (1) only pay attention to the energy consumption in a certain life cycle stage such as the use stage; (2) the evaluation of CNC machine tools should not only consider the impact of the environment, but also should Considering the impact of economic and social factors, (3) Since other products are processed during the use of CNC machine tools, functional units should be considered or defined in the evaluation to improve the comparability and usability of evaluation results

Images