中國數控車床零件加工及工藝設計畢業論文(已修改)

　

【正文】 畢 業 論 文論文題目：數控車床零件加工及工藝設計 題 目： 數控車床零件加工及工藝設計班 級： 專 業： 學生姓名： 指導教師： 日 期: 目 錄摘要…………………………………………………….……...1一、 數控機床簡介…….………..……………………………………2二、 數控激光的概念…………….…………………………………..3三、 數控機床的特點 …………………………..……………….3四、 數控車削加工 ………………………………………………….4五、 數控車床加工程序編制 ………………………………….……5六、 數控車床的組成和基本原理 ………………….………………5七、 數控車床安全操作規………………….…………..………….…6八、 數控車床坐標的確定 ………………………..….……..….……6九、 運動方向的規定 ………………………………….……..………7十、 軸類零件的編程與加工…………………….………….….……..7十一、 簡單套類零件的編程與加工…………………………...……13十二、 簡單的盤類零件的編程與加工…………………….……..…18結束語……………………………..…………………….………25參考文獻……………………………….…………….………… 25數控車床零件加工及工藝設計摘 要在車床上，利用工件的旋轉運動和刀具的直線運動或曲線運動來改變毛坯的形狀和尺寸，把它加工成符合圖紙的要求。 車削加工是在車床上利用工件相對于刀具旋轉對工件進行切削加工的方法。車削加工的切削能主要由工件而不是刀具提供。車削是最基本、最常見的切削加工方法，在生產中占有十分重要的地位。車削適于加工回轉表面，大部分具有回轉表面的工件都可以用車削方法加工，如內外圓柱面、內外圓錐面、端面、溝槽、螺紋和回轉成形面等，所用刀具主要是車刀。在各類金屬切削機床中，車床是應用最廣泛的一類，約占機床總數的50%。車床既可用車刀對工件進行車削加工，又可用鉆頭、鉸刀、絲錐和滾花刀進行鉆孔、鉸孔、攻螺紋和滾花等操作。按工藝特點、布局形式和結構特性等的不同，車床可以分為臥式車床、落地車床、立式車床、轉塔車床以及仿形車床等，其中大部分為臥式車床。數控車削加工是現代制造技術的典型代表，在制造業的各個領域如航天、汽車、模具、精密機械、家用電器等各個行業有著日益廣泛的應用，已成為這些行業不可或缺的加工手段。為了子數控機床上加工出合格的零件，首先需根據零件圖紙的精度和計算要求等，分析確定零件的工藝過程、工藝參數等內容，用規定的數控編程代碼和格式編制出合適的數控加工程序。編程必須注意具體的數控系統或機床，應該嚴格按機床編程手冊中的規定進行程序編制。但從數控加工內容的本質上講，各數控系統的各項指令都是應實際加工工藝要求而設定的。 由于本人才疏學淺，缺乏知識和經驗，在設計過程中難免出現不當之處，望各位給予指正并提出寶貴意見。關鍵詞： 車削加工 刀具 零件的工藝過程 工藝參數 程序編制 On the lathe, use the rotation of the workpiece and tool of line or curve movement to change the shape and size of rough, meet the requirements of drawings processing it into. Turning on a lathe is used the workpiece relative to the method of cutting tool rotation on the workpiece. Cutting is mainly posed of workpiece in turning rather than the tool provided. Turning is the most basic and most mon method of cutting, occupies a very important place in production. Turn Rotary surface suitable for cutting, most with turning method for Rotary surface of workpieces can be processed, such as inner and outer cylinder and inner and outer taper, surfacing, Groove, screw and Rotary forming surface, the tool is mainly used tools. In all kinds of metalcutting machine tools, lathe is the most widely used category, per cent of the total number of machine tools 50%. Turning the lathe tool available on the workpiece, and drills, reamers, taps and knurling cutter drilling, reaming, tapping and rolling flower, and so on. Technical features, layout, forms and structure characteristics of different lathes can be divided into horizontal lathe, face lathe, vertical lathes, Turret Lathes, and contouring lathe, horizontal lathe with most of them. CNC turning process is typical of modern manufacturing technology, in all areas of manufacturing industries such as aerospace, automotive, molds, precision machinery, household appliances, increasing use of a variety of industries, has bee an integral part of these industries processing means. To CNC processing qualified parts, first as well as their precision and calculations required under part drawings, analysis of technological parameters of part of the process, content, NC programming code and format provided a suitable CNC machining program. Programming must pay attention to specific or machine tool numerical control system, should be conducted in strict accordance with the provisions of machine tool programming manual programming. But in essence of NC content, the numerical control system of the instruction set is the actual process requirements. Since I have little talent and learning, lack of knowledge and experience of inevitable irregularities during the design process, hope you give correct me and all of your ments.Key words: turning process parameters of technological process of the tool part programming一．數控機床的簡介數控機床是一種用電子計算機和專用電子計算裝置控制的高效自動化機床。主要分為立式和臥式兩種。立式機床裝夾零件方便，但切屑排除較慢；臥式裝夾零件不是非常方便，但排屑性能好，散熱很高。數控銑床分三坐標和多坐標兩種。三坐標機床（X、Y、