[教学研究]精密螺纹的车削误差分析.doc

摘 要 本文了解国内外的螺纹加工新方案，以及掌握螺纹的传动原理，因为它的传动精度能对系统产生影响，所以对精密螺纹在车削过程中所产生的误差进行全面的分析，把所有的影响因素提出并分析，根据各因素分析过程提出相应的优化解决方案。 本文主要研究了螺纹车削过程中误差产生的原因。先提出螺纹加工工艺的两种路线以及车削螺纹的条件，分析螺纹的组成要素，以及其它外界条件对螺纹精度产生的影响。 本文所作的具体研究工作如下： 1．认识螺纹的精密程度对生产过成的影响； 2．拟定两种以上的加工工艺路线，分析各工序的特点和重要性； 3. 了解螺纹的组成要素，对各要素加以分析，并提出相对的优化方案； 4．分析螺纹的表面误差，并提出优化方案； 5. 讨论丝杠在传动系统中对螺纹精密度的影响，并提出解决方案； 6. 分析工件装夹对螺纹误差的影响，并提出解决方案； 7. 分析夹具对螺纹定位误差的影响，并拟定优化方案； 8. 为减少螺纹误差搜集新的优化方案。 关键词: 螺纹 工艺路线 误差分析 优化方案 Abstract This article about the new scheme thread producing at home and abroad, and a grasp of the thread transmission principle, because of it of transmission precision can influence of system, so for precision thread on turning process produced in error comprehensive analysis, the influence factors of the all put forward and analysis, according to each factor analysis process put forward the corresponding optimization solution。 This paper mainly studies the screw in the process of turning the causes of error. Give the processing technology of the thread two route and turning threads conditions, analysis of the thread ingredients, and other external conditions on the thread precision influence。 This paper made of concrete research work are as follows： 1. The understanding of the exact extent of the thread of production of the influence of a； 2. For over two kinds of processing technology route, analyzes the process of characteristics and importance； 3. Understand the elements of thread, these elements analyzed, and puts forward relative optimization scheme； 4. Analysis of the surface of the thread error, and propose optimization solution； 5. Discuss ball screw in the transmission system of the influence of the precision of thread, and put forward the solution； 6. Analysis the workpiece loading screw the effect of error, and put forward the solution； 7. Analysis of fixture position error influence of thread, and plan optimization scheme； 8. To reduce thread error collecting new optimization scheme. Keywords :Thread；Pr