普通车床的深孔加工机床改造毕业设计论文.doc

本科毕业设计(论文)
题目:普通车床的深孔加工机床改造
系(部):
专业: 机械设计制造及其自动化
班级:
学生:
学号:
指导教师:
2010年 05月

普通车床的深孔加工机床改造
摘要
本文研究的主要内容是:由于深孔加工难度高,加工工作量大,已成为机械加工的关键性工序,随着技术的发展,产品更新换代的迅速,新型高强度、高难度、难加工零件的不断出现,对深孔加工的质量、加工效率和刀具等都提出了更高的要求,由于深孔钻床的特殊性,其价格比较昂贵对于非专业化深孔加工的厂家,成本过高。在普通机床上加工深孔, 由于刀具刚性差, 在深孔加工中容易引偏, 使孔的轴心线歪斜切屑的排出和刀具冷却也较困难而且, 难以保证所要求的加工精度和表面粗糙度。而采用普通车床改装为深孔加工机床,由于其成本低,制造周期短以及一床多用(深孔钻削、车削,深孔镗削和深孔珩磨)等优点,已为许多厂家所接受。本文实现的是利用普通车床对深孔进行加工,利用车床的改造对深孔完成加工。车床改装为深孔加工机床主要有机床和油路两大部分。机床部分主要有中心架、授油器和联结器三大部件;油路部分主要含进油器、回油路以及排屑箱、油箱等。安装上深孔钻削装置,即完成普通车床的深孔加工机床改造。由此改造后能对深孔加工,从而降低了生产成本。
关键词:车床改造;深孔加工;DF系统;排屑装置
Reconstruction of Deep Hole Processing Machine for Ordinary Lathe
Abstract
The main contents of this text , Because of the deep hole processing of high difficulty, Large a amount of processing work, Has e the machining of key processes, along with calculator technical development, the product of rapid upgrade,
New high strength, difficult, difficult to machine parts emerging on the deep processing, quality, processing efficiency and tool are all put forward higher requirements, due to the particularity of deep hole drilling, the price more expensive for non-professional deep processing factory, the cost is too high. Deep in the general machine tool, tool rigidity as bad, easy to lead in the deep processing of partial to the hole axis line skew the discharge of chip and tool cooling is also more difficult and is difficult to guarantee the required machining accuracy and surface roughness degree. And converted into a deep hole with lathe machines, because of its low cost and short manufacturing cycle, and more than one use (deep hole drilling, turning, deep hole boring and honing), etc, has been accepted by many manufacturers. This realization is the use of ordinary lathe processing deep hole, using plete processing of the hole. Converted into a deep hole machine tool lathe main machine and two major oil line. Machine mainly consists of a center frame, granted the three major oil players