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

A numerical simulation, milling and boring machine technology, applied in the field of analysis, can solve the problems of lack of numerical simulation and numerical simulation of thermal characteristics of the whole machine of heavy-duty CNC floor milling and boring machines, and lack of numerical simulation of thermal characteristics of the whole machine.

Active Publication Date: 2014-12-10
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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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 a...

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

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Embodiment

[0068] The invention provides a numerical simulation method for the thermal characteristics of a heavy-duty numerical control floor milling and boring machine. The numerical simulation method performs numerical simulation of the thermal characteristics of the machine tool as a whole, and then combines the contact thermal resistance of the joint surface of each component and the oil film of the static pressure guide rail. Heat generation effectively improves the accuracy and precision of the analysis results. The following takes the TK6916DA heavy-duty CNC floor-type milling and boring machine as an example, combined with this method for detailed explanation:

[0069] First, analyze the heat source distribution of TK6916DA, such as figure 1 As shown, the heat source distribution includes: heat generated by the friction of the spindle bearing, heat generated by the friction of the slide feed drive, heat generated by the column static pressure guide rail, and heat generated by th...

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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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Application Information

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IPC IPC(8): G06F17/50
Inventor 黄智李俊杰杜丽陈学尚衡凤琴许可王正杰
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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