Electric spindle thermal characteristic analysis method based on heat generation-heat dissipation power

A technology of heat dissipation power and heat generation power, which is applied in the field of CNC machine tools, and can solve problems such as different heat dissipation capabilities and inaccurate analysis of cooling liquid heat dissipation power.

Pending Publication Date: 2020-01-21
TIANJIN UNIV
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Problems solved by technology

When the traditional method analyzes the thermal characteristics of the electric spindle, it is considered that the heat dissipation capacity of the coolant remains unchanged for the heat dissipation process of the coolant, but in the actual heat dissipation process of the coolant, the heat dissipation capacity changes with the change of temperature, and at the same time, the coolant is in the The heat dissipation capacity of different positions in the cooling circuit is not the same, and the traditional method is not very accurate for the analysis of the heat dissipation power of the coolant

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  • Electric spindle thermal characteristic analysis method based on heat generation-heat dissipation power
  • Electric spindle thermal characteristic analysis method based on heat generation-heat dissipation power
  • Electric spindle thermal characteristic analysis method based on heat generation-heat dissipation power

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Embodiment Construction

[0019] In order to further understand the invention content, characteristics and effects of the present invention, the following examples are given, and detailed descriptions are as follows in conjunction with the accompanying drawings:

[0020] An analysis method for the thermal characteristics of the electric spindle based on heat generation and heat dissipation power. Through the combination of finite element simulation and empirical formula, the heat generation power and heat dissipation power of the electric spindle are comprehensively calculated, and the thermal characteristics of the electric spindle are analyzed. The finite element simulation software is Ansys Company of the United States. Ansys 17.2, using the Fluent, Transient Thermal and TransientStructural modules, the analysis process is as follows figure 1 shown;

[0021] Step 1, establish the three-dimensional models of the solid region and the fluid region of the electric spindle, respectively as follows figu...

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Abstract

The invention discloses an electric spindle thermal characteristic analysis method based on heat generation-heat dissipation power. The method comprises: combining finite element simulation with an empirical formula, comprehensively calculating the heat generation power and the heat dissipation power of the motorized spindle, obtaining the situation that the heat dissipation power of all components of the motorized spindle changes along with time, conducting heat-structure coupling analysis on the motorized spindle, obtaining the situation that structural deformation of the motorized spindle changes along with time, and the thermal characteristics of the motorized spindle can be analyzed more comprehensively and accurately by processing calculated data.

Description

technical field [0001] The invention belongs to the technical field of numerical control machine tools, and relates to a method for analyzing the thermal characteristics of an electric spindle, in particular to a method for analyzing the thermal characteristics of an electric spindle based on heat generation and heat dissipation power. Background technique [0002] With the continuous development of basic manufacturing and precision machining technology, CNC machine tools are developing in the direction of high speed and high precision. The manufacturing industry has higher requirements for the thermal characteristics of CNC machine tools. , The comprehensive error of about 40%-70% is caused by thermal effects, and the analysis of the thermal characteristics of the electric spindle is a key technical link in the research and development of precision machine tools. When the traditional method analyzes the thermal characteristics of the electric spindle, it is considered that ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/23G06T17/00
CPCG06T17/00
Inventor 高卫国倪瑞林张大卫翁凌韬郑英杰宫怀叡李伟
Owner TIANJIN UNIV
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