曲軸機床加工畢業(yè)論文


頁數(shù)：43 字數(shù)：13069


中文摘要
隨著社會的不斷發(fā)展，制造業(yè)的制造技術(shù)也在飛快的提高。我國在機械加工方面跟上了國外的發(fā)展，在普通的機床加工基礎(chǔ)上，開始了用數(shù)控機床和加工中心進行加工。
對于大型結(jié)構(gòu)的零件加工，需要設(shè)計一臺專用機床進行加工。本文介紹了一臺用于加工曲軸潤滑油孔的專用鉆床,該專機具有主軸調(diào)速范圍大、行程長等特點,該機床適用于大型結(jié)構(gòu)件深孔加工。使用結(jié)果表明,具有一定的實用性和應(yīng)用價值。
設(shè)計的機床總體結(jié)構(gòu)類似于一臺三坐標搖臂鉆床，能夠在一次裝夾中完成鉆鉸直油孔、切削多道工序。其大體工作原理如下：曲軸和夾具安裝在固定不動的平臺上，裝有鉆頭的主軸箱隨進給拖板實現(xiàn)鉆削進給運動，工作位置的調(diào)整是通過大拖板橫向運動、搖臂的上下運動、搖臂的轉(zhuǎn)動來實現(xiàn)的。本機床原理正確，使用方便，加工效率高，精度有保證。使用本專用機床加工曲軸，大大縮短了加工時間和制造成本。
關(guān)鍵詞:曲軸； 油孔；搖臂鉆床；主軸箱
Abstract
By the continual development of society,making technology of manufacturing has improved quickly.The processing of our country catch up with the development of the other countries in machining side.In the basic of common machine tool’s machining,people begin to make with The Machining Center.
With the machining in accessory of good-sized structural,I need to design a special machine tool to machining. In this paper, a special machine tool for drilling lubricating hole and flange hole of crankshaft is introduced. The machine tool has some p rocessing characters, such as large range of speed governing for headshaft, long travel of feeding motion..The using result make know ,it has definite practicability and worthiness of adhibition.
The collectivity configuration of the machine tool is similarity as the radial dring and it has three coordinates.It can finish a lot of processes,for example drilling lubricating hole and so on.The mainly working elements are: crankshaft and clamp are built on the imovable table-board. The headstock has aiguille and it follows dragging board to come true the boring athletics.The landscape orientation of dragging board, the up and down sport of shaking-arm and the running of dragging board turn up the modulating of working station.The elements of machine tool is right and the use of it is convenient.The efficiency of working is high and precision is to ensure.using the special machine tool to process crankshaft than can shorten the time of processing and the making cost.
Key words: crankshaft; lubricating hole; radial dring; headstock


目 錄

第一章 緒論 1
1．1 課題背景 1
1.2立題的目的 1
1.3鉆削技術(shù)的發(fā)展 2
1.3.1 一般鉆削技術(shù) 2
1.3.2深孔鉆削加工的方法 2
第二章 零件工藝分析 4
2.1曲軸加工工序 4
2.2零件整體分析 7
2.3加工工藝的確定 7
第三章 總體方案設(shè)計 9
3.1 刀具的選擇 9
3.2.運動參數(shù)和動力參數(shù)的確定 9
3.3電機的選取 11
3.4變速箱的選擇和設(shè)計 12
3.5設(shè)計及使用中注意事項 14
第四章 總體部件設(shè)計及計算 16
4.1 Z向進給運動中直齒輪1.2的計算及校核 16
4.2變速箱高速軸VI的計算和校核 20
4.3 滾動絲桿的計算及校核 26
4.4 軸承的選定及校核 29
4.4.1 滾動絲桿上深溝球軸承的選定及校核 29
4.4.2 滾動絲桿上推力球軸承的選定 30
第五章 造型 32
5.1 PRO/E的介紹 32
5.2 軸、齒輪、搖臂的三維圖 35
第六章 總結(jié) 37
6.1研究總結(jié) 37
6.2研究展望 37
致謝 38
參考文獻 39
附錄