畢業(yè)論文標(biāo)準(zhǔn)WORD格式排版 30頁(yè) 附DWG相關(guān)文件

摘 要

數(shù)控機(jī)床是一種高科技的機(jī)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(jī)床在國(guó)內(nèi)也進(jìn)入了實(shí)用化階段，但在目前我國(guó)許多國(guó)營(yíng)大廠都有一批老機(jī)床，若在老機(jī)床的基礎(chǔ)上對(duì)其進(jìn)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(jī)床的使用壽命。因此，我們畢業(yè)設(shè)計(jì)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(jiǎn)易加工中心，實(shí)現(xiàn)不用人工換刀的情況下，短時(shí)間內(nèi)進(jìn)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(fù)責(zé)機(jī)床的整體布局和八軸轉(zhuǎn)塔自動(dòng)換刀裝置的設(shè)計(jì)。在機(jī)床的整體布局方面，我從人機(jī)工程學(xué)和產(chǎn)品造型兩方面對(duì)機(jī)床進(jìn)行設(shè)計(jì)。八軸轉(zhuǎn)塔自動(dòng)裝置的工作原理是在八個(gè)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(dāng)將油注入中心油缸后，產(chǎn)生壓力帶動(dòng)整個(gè)轉(zhuǎn)塔頭使八軸轉(zhuǎn)塔旋轉(zhuǎn)，使其實(shí)現(xiàn)自動(dòng)換刀的功能。這套簡(jiǎn)易的數(shù)控加工中心也應(yīng)用了近年來(lái)才發(fā)展起來(lái)的變頻技術(shù)，從而提高了其中的科技含量。由于現(xiàn)在國(guó)內(nèi)的國(guó)營(yíng)大廠都面臨老機(jī)床淘汰的情況，因此在老機(jī)床的基礎(chǔ)上進(jìn)行數(shù)控改造是很有市場(chǎng)前景的，從而進(jìn)行這次畢業(yè)設(shè)計(jì)也是比較實(shí)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(dòng)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(jī)床總體方案的制定…………………………………… 2
§1.2.2 對(duì)于主軸部件的確定…………………………………… 3
§1.3 八軸轉(zhuǎn)塔頭的結(jié)構(gòu)設(shè)計(jì)…………………………………… 3
第二章 設(shè)計(jì)計(jì)算
§2.1 電動(dòng)機(jī)的選擇…………………………………………………5
§2.2 計(jì)算總傳動(dòng)比…………………………………………………5
§2.3 計(jì)算各傳動(dòng)裝置的運(yùn)動(dòng)和動(dòng)力參數(shù)…………………………5
§2.4 帶傳動(dòng)的設(shè)計(jì)…………………………………………………6
§2.5 錐齒輪傳動(dòng)的設(shè)計(jì)……………………………………………7
§2.6 圓柱齒輪設(shè)計(jì)……………………………………………… 10
§2.7 主軸部分的設(shè)計(jì)計(jì)算……………………………………… 12
§2.8 軸的設(shè)計(jì)…………………………………………………… 14
§2.9 軸承的計(jì)算………………………………………………… 19
§2.10 鍵強(qiáng)度的校核………………………………………………22
第三章 操作/使用說(shuō)明
§3.1 基本要求…………………………………………………… 24
§3.2 操作注意事項(xiàng)……………………………………………… 25
第四章 性能分析及設(shè)計(jì)總結(jié)……………………………………26
第五章 小結(jié)……………………………………………………… 27
參考文獻(xiàn)……………………………………………………………28
致謝…………………………………………………………………29
附錄…………………………………………………………………30