Tool-finite-element-analysis-oriented screw nut database creating method

Abstract

The invention discloses a tool-finite-element-analysis-oriented screw nut database creating method. The tool-finite-element-analysis-oriented screw nut database creating method includes extracting CAD (computer aided design) model driving parameters and kinetic analysis parameters according to a supplier manual and creating a database, wherein the CAD model driving parameters include a part modeling main drive parameter used for modeling of driving parts, and a part modeling order driving parameter used for determining modeling order of parts and a main drive parameter relationship among the parts; building a CAD parameterized geometric model of a corresponding screw nut component according to database driving parameters; building a simplified screw nut secondary kinetic model in finite element analysis software according to screw nut dimension parameters; extracting finite element analysis parameters of the screw nut component in the database through secondary development of CAD and CAE (computer aided engineering) software, and loading the finite element analysis parameters into the screw nut secondary kinetic model by the aid of command stream languages of the finite element analysis software. CAD and CAE models of the screw nut component, simulated analysis and knowledge integration in tool design are realized, and analysis models are built automatically.

Description

technical field [0001] The invention relates to a method for establishing a database of screw nuts of machine tools. In particular, it relates to a method for establishing a lead screw nut database for machine tool finite element analysis. Background technique [0002] The current machine tool screw nut model only has simple geometric information, which is only used in the design stage of the machine tool; while performing the finite element simulation analysis of the machine tool, it is necessary to manually set the analysis parameters such as material properties and joint surface parameters in the finite element software, which is cumbersome and cumbersome. easy to make mistake. Machine tool designers spend a lot of time on repetitive work, resulting in waste of design resources, and have a great impact on the efficiency and stability of machine tool finite element analysis. Therefore, it is particularly important to establish a screw nut database for machine tool finite...

AI Technical Summary

Problems solved by technology

[0002] The current machine tool screw nut model only has simple geometric information, which is only used in the design stage of the machine tool; while performing the finite element simulation analysis of the machine tool, it is necessary to manually set the analysis parameters such as material properties and joint surface parameters in the finite element software, which is cumbersome and cumbersome. Error-prone

Machine tool designers spend a lot of time on repetitive work, resulting in waste of design resources, and have a great impact on the efficiency and stability of machine tool finite element analysis

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