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CNC lathe spindle thermal characterization

Author: WangCong
Tutor: SunXingWei
School: Shenyang University of Technology
Course: Mechanical Manufacturing and Automation
Keywords: Spindle Thermal Performance Thermal analysis model Finite Element Analysis
CLC: TG519.1
Type: Master's thesis
Year: 2012
Downloads: 95
Quote: 0
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Abstract


Improved processing technology can greatly improve production efficiency and reduce production costs , mechanical manufacturing field development. High-efficiency machine tools is the completion of high-efficiency manufacturing and processing the first condition. Spindle technology in the field of manufacturing and processing efficiency has a pivotal role . With the traditional transmission mode compared spindle using a built-in motors , the abolition of the middle of the range of transmission links , so that the \So far , we are still on the electrical characteristics of the spindle thermal lack of deep knowledge and understanding , so largely restricted spindle technology has been widely used. Spindle heat mainly from the stator and rotor and the bearing friction heat, the heat will cause the machine to slowly accumulate a certain degree of thermal deformation , thermal deformation of spindle machining accuracy has an impact on the most important factors of a , thermal deformation of the machine caused by the machining error of the total machining errors parts 60% to 80%. Spindle in the work process , possibly because the heat causes the failure , and even have time to send out the alarm signal . The main subject of the electrical spindle thermal properties of finite element analysis , optimization of the temperature field to improve the temperature distribution , lower spindle temperature and reduce thermal deformation. This paper calculated the electric spindle motor heating and bearing friction loss , fever, analyzed and seal cooling water convection cooling capacity , on the basis of established spindle thermal analysis model, using finite element analysis software to analyze its solution eventually propose improvement spindle thermal performance of the main measures, measures taken to improve the electric spindle again a finite element model of the thermal analysis and the results illustrate the bearing outer ring for water cooling of such measures to improve the temperature at the bearing field distribution has a very significant effect. Spindle CNC machine tool spindle system is the ideal structure, its technical level and product quality improvement on the field of CNC machine tools has important theoretical significance and practical value.

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CLC: > Industrial Technology > Metallurgy and Metal Craft > Metal cutting and machine tools > Turning and lathe ( lathe ) > Program control lathes and CNC lathes
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