Method for simulating thermal characteristic numerical value of heavy numerical control floor type boring and milling machine

Abstract

The invention discloses a method for simulating a thermal characteristic numerical value of a heavy numerical control floor type boring and milling machine. The problem that an existing heavy numerical control machine tool thermal state characteristic finite element numerical analysis method is inaccurate in analysis result and low in precision is solved. According to the digital simulation method, a machine tool is adopted as a whole for thermal characteristic numerical simulation, then the thermal contact resistance of the combination faces of parts and the heat generated by a hydrostatic guideway oil film are combined, and the accuracy and precision of an analysis result are effectively improved. The method is high in analysis result accuracy and precision, and a solid foundation is laid for large-scale application and popularization of the method.

Description

technical field [0001] The invention relates to an analysis method, in particular to a numerical simulation method for thermal characteristics of a heavy-duty numerical control floor milling and boring machine. Background technique [0002] Heavy-duty CNC machine tools are urgently needed for the development of my country's energy, aerospace, large ships, automobiles and other industries, and are strategic materials to measure a country's technical level and comprehensive national strength. With the development of precision machining and manufacturing technology, the requirements for machining accuracy of heavy machine tools are getting higher and higher. However, as far as the processing accuracy of heavy machine tools is concerned, there is still a large gap between domestic products and those of international companies. The gap in the accuracy of heavy machine tools has restricted the development of my country's manufacturing industry. Improving the processing accuracy of...

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Problems solved by technology

[0010] (3) Lack of numerical simulation of the thermal characteristics of the heavy-duty CNC floor milling and boring machine

For heavy-duty CNC floor milling and boring machines, the commonly used research methods are aimed at key components (such as spindle components, rams, columns) in the machine tool, but there is a lack of accurate methods for numerical simulation of the thermal characteristics of the heavy-duty CNC floor milling and boring machine

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