Electromechanical coupling analysis and optimization method for small gantry numerical control machining center

Abstract

The invention discloses an electromechanical coupling analysis and optimization method for a small gantry numerical control machining center. The method comprises the steps of (1) establishing an electromechanical coupling model of the small gantry numerical control machining center; (2) determining electromechanical parameters as design variables, determining a variable space, taking comprehensive response efficiency and response precision as evaluation indexes, creating sample points by adopting a full-factor design method, and modifying parameters in the electromechanical coupling model toobtain a response value; (3) constructing an extreme learning machine (ELM), and establishing a mapping rule by taking the selected electromechanical parameters and response values as sample data; and(4) optimizing the extreme learning machine by adopting a binary gravitation search algorithm (RGSA) to obtain an optimal response value. The influence of electromechanical parameters on the dynamicperformance of the small gantry numerical control machining center is analyzed, mechanical parameters and control parameters are optimized, and guiding significance is achieved for production and manufacturing of a prototype.

Description

technical field [0001] The invention belongs to the field of machine tool manufacturing, and in particular relates to an electromechanical coupling analysis and optimization method of a small gantry numerical control machining center. Background technique [0002] The Xiaolongmen CNC machining center adopts a door-shaped closed structure, which has the advantages of good rigidity, light and heavy load, high machining accuracy and small spindle height limit. It is especially suitable for the processing of diversified and special-shaped precision parts. Gradually replacing large and medium-sized vertical machining centers, the application prospect is very broad. The development of high-performance small gantry CNC machining center is of great significance to the development of the industry. [0003] Xiaolongmen CNC machining center is a typical mechatronic equipment, its work requires the close interaction of servo drive, control unit and mechanical structure, and the overall...

AI Technical Summary

Problems solved by technology

The traditional design and manufacturing method generally divides the design and manufacture of each system component and then assembles it together, without considering the coupling relationship between the systems, so that the final performance is affected to varying degrees

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