【正文】 ece in a lathe using method of tool rotation relative to the workpiece cutting. Cutting machining is mainly posed of workpiece instead of cutting tools available. Turning is the most basic machining method, the most mon, occupies a very important position in the production. Turning for processing rotary workpiece surface, most has the rotation surface can be processed with the method of turning, such as the external cylindrical surface, conical surface, and face, groove, thread and rotary forming surface, the tool is mainly used tools.This paper mainly discusses the sleeve parts machining process and program design, through the UG to draw the parts diagram and program, using the numerical control lathe simulation software to avoid the defective products and material waste, the process analysis to parts, processing entity through the wide number 980 machine tool, the anic bination of simulation software and the machine to good use, processing qualified product.In addition, this paper also introduces the selection and use of tools and in the process of attention, analyzes how to according to the part geometry characteristics of the design process and steps, select the relevant parameters and operating process. Practice has proved, in NC machining parts, according to the requirements of the different parts of the technology, reasonable arrangement of different machining process, setting processing parameters reasonably, choose the reasonable processing tools, not only can improve the processing efficiency, ensure the quality, but also reduce the tool wear.Key Words: Turning Parts of the process analysis Write a program 目 錄摘 要 .............................................................................................................................IABSTRACT.......................................................................................................................II第 1章 緒 論 ................................................................................................................1第 2章 數(shù)控機(jī)床的概念 ..............................................................................................2 數(shù)控機(jī)床的概念 .................................................................................................................2 機(jī)床本身技術(shù)參數(shù) .....................................................................................................2 數(shù)控系統(tǒng) ......................................................................................................................2 數(shù)控加工的概念 ................................................................................................................3 數(shù)控機(jī)床的分類 ................................................................................................................3 按加工工藝方法分類 ...............................................................................................3 按控制運(yùn)動(dòng)軌跡分類 ...............................................................................................4 按驅(qū)動(dòng)裝置的特點(diǎn)分類 ...........................................................................................4 數(shù)控車削加工工藝 ............................................................................................................5 合理選擇切削用量 ....................................................................................................5 夾具安裝要點(diǎn) .............................................................................................................6 數(shù)控車床加工程序編程 ........................................................................................6 數(shù)控車床的組成和工作原理 ..........................................................................................7 車床主體 ......................................................................................................................7 數(shù)控裝置和伺服系統(tǒng) ...............................................................................................7 數(shù)控車床安全操作規(guī)程 ...................................................................................................7 數(shù)控車床坐標(biāo)系的確定 ...................................................................................................8 運(yùn)動(dòng)方向確定 .....................................................................................................................9第 3章 套筒類零件的結(jié)構(gòu)特點(diǎn)及工藝分析 ............................................................10 軸承套加工工藝 ...............................................................................................................10 軸承套技術(shù)條件和工程分析 ................................................................................10 軸承套的加工工藝 ..................................................................................................11 液壓缸加工工藝分析 ......................................................................................................11 液壓缸的技術(shù)條件和工程分析 ...........................................................................11 液壓缸的加工工藝 ...................................................................................................12 套類零件的加工 ...............................................................................................................13