自回转切削刀具设计与实验研究.docVIP

自回转切削刀具的设计与实验研究 题 目 专 业 班 级 姓 名 学 号 指导教师 自回转切削刀具的设计与实验研究 机械电子工程  自回转切削刀具的设计与实验研究 摘要：切削温度是造成刀具磨损的主要因素，对加工质量和生产效率具有重要的影响。自回转切削刀具以结构为切入点，增加一个运动单元，在加工的过程中依靠切削分力自动连续回转，使每一部分切削刃实际投入切削的时间很短可以充分散热，可以有效地提高刀具材料的耐高温性能及抗磨损性能，改善刀具的工作状态,具有重要的研究价值。 本文在介绍自回转切削刀具工作原理的基础上，对刀具的几何角度进行了分析与选择，完成了自回转车刀的结构选型与分析，然后用Pro/ENGINEER软件对进行了实体建模。在此基础上，制作出了一种自回转车刀，并进行了单因素法切削试验。通过对切削过程中产生的现象分析，探讨了刀具设计制造过程不足，并提出了改进的方案。 关键词:自回转切削刀具；结构优化；仿真实验；干涉检验；切削实验 Research on Design and Experiment of Self-propelled Rotary Cutter Abstract: Cutting temperature is one of the primary factors resulting in tool wear. Hence, it has critical influence on machining quality and production efficiency.The self-propelled rotary cutter has a movement unit which takes the structure as the breakthrough point. The insert can automatically rotate continuously depending upon the cutting force component in the processing process. The actual cutting time of each part of the cutting edge is very short to make the heat dissipation efficiently. The performance of heat endurance and wear resistance can be enormously enhanced. In addition, the cutter working condition can be effectively improved. Therefore, this work has important research value. On the basis of introduction to the working principle of self-propelled cutter, the geometric parameters and the structure style of cutter was analyzed and chosen. Then, the solid modeling was carried out using the Pro/Engineer. Finally, a kind of self-propelled cutter was fabricated and tested in the cutting experiment with single factor method. Through analyzing the phenomena in the cutting process, the shortages of the design and fabrication of the cutter was expounded. Moreover, some improving schemes were put forward. Key words: Self-propelled rotary cutter; Structure optimization; Simulation experiment; Interfere test; Cutting experiment 目 录 1绪论 1 1.1课题研究背景和意义 1 1.2课题的主要研究内容 2 2自回转切削刀具的设计与干涉检验 3 2.1自回转切削刀具的基本原理 3 2.2自回转切削刀具的主要几何参数选择 5 2.3自回转切削刀具的结构设计 7 2.4基于Pro/