畢業(yè)論文標準WORD格式排版 30頁 附DWG相關(guān)文件

摘 要

數(shù)控機床是一種高科技的機電一體化產(chǎn)品，是現(xiàn)代制造技術(shù)中不可缺少的生產(chǎn)手段。隨著科技的不斷發(fā)展，數(shù)控機床在國內(nèi)也進入了實用化階段，但在目前我國許多國營大廠都有一批老機床，若在老機床的基礎上對其進行改造，配以數(shù)控技術(shù)，這樣不僅可降低成本，而且可提高老機床的使用壽命。因此，我們畢業(yè)設計的題目就是將普通銑床改為集鏜、銑、鉆為一體的八軸轉(zhuǎn)塔式簡易加工中心，實現(xiàn)不用人工換刀的情況下，短時間內(nèi)進行鏜、銑、鉆的轉(zhuǎn)換，這樣不僅可以提高生產(chǎn)效率和加工精度，并且還可以降低成本。我主要負責機床的整體布局和八軸轉(zhuǎn)塔自動換刀裝置的設計。在機床的整體布局方面，我從人機工程學和產(chǎn)品造型兩方面對機床進行設計。八軸轉(zhuǎn)塔自動裝置的工作原理是在八個軸上事先根據(jù)工序的安排將加工中所需要的刀具裝夾好，當將油注入中心油缸后，產(chǎn)生壓力帶動整個轉(zhuǎn)塔頭使八軸轉(zhuǎn)塔旋轉(zhuǎn)，使其實現(xiàn)自動換刀的功能。這套簡易的數(shù)控加工中心也應用了近年來才發(fā)展起來的變頻技術(shù)，從而提高了其中的科技含量。由于現(xiàn)在國內(nèi)的國營大廠都面臨老機床淘汰的情況，因此在老機床的基礎上進行數(shù)控改造是很有市場前景的，從而進行這次畢業(yè)設計也是比較實用的。

關(guān)鍵詞：數(shù)控技術(shù)，八軸轉(zhuǎn)塔頭，變頻技術(shù)，自動換刀

ABSTRACT
The numerical control lathe is the kind of Hi-Tech and electromechanics integrated products, is the indispensable means of production in the modern manufacturing technology. With the constant development of science and technology, the numerical control lathe has entered practical stage of taking too at home. But at present in our country, a lot of state-run factories have a batch of old lathes, if we transform to them on the basis of old lathes and mix them with numerical control technology. We can not only decrease the costs, but also raise the service lives of the old lathes. However, our topics of graduation project is to switch the ordinary milling machines to turret numerical control machining center, which have the functions of boring, milling, and drilling. They can realize to the transfer of boring, milling and drilling in the short time in the condition of being not artificial to transfer knives. It can not only improve production efficiency and machining accuracy, but also decrease costs. I’m responsible for the whole overall arrangements of lathe and the design of eight axles turret numerical control machining center. I apply the knowledge of man-machine engineering and model of the products into the whole overall arrangements of lathe. The operation principles of eight axles turret numerical control machining center is to insert cutters in the axles according to the arrangement of working procedure in advance of machining, and after inject the oil into the jar of center,
the pressure make eight axles turret to be transferred entirely, this make it to realize the function of transfer knives automatically. This set of simples numerical control machining center have used the frequency conversion technology which was developed in recent years too, thus this improved the scientific and technological content among them. Because the domestic state-run factories all face the situation that the old lathes need eliminates now, so there are market prospects very much to carry on the transformation of numerical control on the basis of old lathe, thus it is practical for us to carry on this graduation project.

KEY WORDS: the technology of numerical control, eight axles turret, frequency conversion technology, change the knife automatically


目 錄
前 言……………………………………………………………… 1
第一章 技術(shù)參數(shù)分析及方案的確定
§1.1技術(shù)參數(shù)分析……………………………………………… 2
§1.2 初步方案制定……………………………………………… 2
§1.2.1 機床總體方案的制定…………………………………… 2
§1.2.2 對于主軸部件的確定…………………………………… 3
§1.3 八軸轉(zhuǎn)塔頭的結(jié)構(gòu)設計…………………………………… 3
第二章 設計計算
§2.1 電動機的選擇…………………………………………………5
§2.2 計算總傳動比…………………………………………………5
§2.3 計算各傳動裝置的運動和動力參數(shù)…………………………5
§2.4 帶傳動的設計…………………………………………………6
§2.5 錐齒輪傳動的設計……………………………………………7
§2.6 圓柱齒輪設計……………………………………………… 10
§2.7 主軸部分的設計計算……………………………………… 12
§2.8 軸的設計…………………………………………………… 14
§2.9 軸承的計算………………………………………………… 19
§2.10 鍵強度的校核………………………………………………22
第三章 操作/使用說明
§3.1 基本要求…………………………………………………… 24
§3.2 操作注意事項……………………………………………… 25
第四章 性能分析及設計總結(jié)……………………………………26
第五章 小結(jié)……………………………………………………… 27
參考文獻……………………………………………………………28
致謝…………………………………………………………………29
附錄…………………………………………………………………30