To further enhance the machining performance of the electric spindle,taking the common A02 electric spindle as re-search object,different parts of the mandrel were replaced with carbon fiber material with small thermal expansion coefficient and excel-lent vibration reduction performance.Four types of carbon fiber-metal composite mandrel were designed and their impact on the A02 electric spindle was explored.Through finite element analysis,the dynamic and thermal properties of the four carbon fiber-metal com-posite mandrels and the conventional steel mandrel were evaluated.The results show that the all-carbon fiber mandrel has the best per-formance,while the inner carbon fiber mandrel can achieve similar results to the all-carbon fiber mandrel without using a large amount of carbon fiber material.The outer carbon fiber mandrel has a mature processing technology and processing tests can be performed di-rectly.Several existing or feasible schemes for machining carbon fiber-metal composite mandrel were listed,providing reference for a better combination of carbon fiber materials and electric spindle structures.
关键词
电主轴/碳纤维/有限元分析/热变形
Key words
electric spindle/carbon fiber/finite element analysis/thermal deformation
维普
万方数据