數(shù)控機床畢業(yè)論文


摘要
為了適應(yīng)機械行業(yè)的發(fā)展趨勢，簡化一般工廠中工人的勞動量，在本設(shè)計中應(yīng)用簡單的數(shù)控系統(tǒng)設(shè)計。就實際情況分析，一般的機械加工精度和效率足以完成工作需求，不需要高精密的數(shù)控系統(tǒng)，但考慮一般機械系統(tǒng)實現(xiàn)自動化生產(chǎn)相對比較困難，而且實現(xiàn)起來相當復(fù)雜，設(shè)備比較龐大。然而這些問題可以在一個非常簡單的數(shù)控系統(tǒng)中很容易的得到很好的解決。隨著微型計算機系統(tǒng)的發(fā)展，性能的不斷提高，大范圍應(yīng)用的普及，應(yīng)用一個簡單的數(shù)控系統(tǒng)來完成一般的工作，在一般的小型工廠中足可以實現(xiàn)。
本次設(shè)計的銑床，除了能進行銑削加工，主軸上安裝不同的刀具時，還可以進行鉆孔或攻絲加工。所以我們采用了如下的設(shè)計方案：進給系統(tǒng)采用大慣量寬調(diào)速直流伺服電動機，滾珠絲杠，雙螺母墊片調(diào)整預(yù)緊間隙，導(dǎo)軌副采用直線滾動導(dǎo)軌副，主傳動系統(tǒng)采用無級調(diào)速電機。
在設(shè)計過程中，我得到了老師的精心指導(dǎo)，幫我收集了很多我無法找到的資料。袁老師在完成繁重的教學任務(wù)之余，經(jīng)常拖著疲憊的身體，對我們的工作進行仔細地審查，針對我們的情況，進行了耐心的講解，從設(shè)計的原理到結(jié)構(gòu)功能，做出了大量的指導(dǎo)性工作，使我們對所要設(shè)計的課題有了更深的了解，在這里也要感謝同組同學的熱心幫助，同學們總是微笑著面對我的提問，耐心講解，使我對有些問題有更加清楚的認識。
關(guān)鍵詞：總體結(jié)構(gòu)布局   銑床傳動方式  主傳動系統(tǒng)  進給系統(tǒng)
 
Abstrac
In order to adapt to the machinery industry development trends, simplified general factory workers in the labor, in the design of a simple numerical control system design. On the actual situation analysis, the general machining accuracy and efficiency needs to complete its work, do not need high-precision numerical control system, but considering the general mechanical system to automate production is relatively difficult and very complex to achieve, equipment relatively large. However, these problems can be in a very simple numerical control system in very easy to get a good solution. With the development of micro-computer system, the continuous improvement of performance, large-scale application of the universal application of a simple numerical control system to complete the work in general, the small factories in general can be achieved in full.
The processing center, in addition to a milling, spindle installed on a different tool, can also carry out drilling or tapping processing. Therefore, we have adopted the design of the programmes are as follows: feeding system using the inertia of wide speed range DC servo motor, ball screw, double-nut pads adjust preload gap, the rails of a rail line rolling deputy, the main drive system adopts the - Speed Motor.
In the design process, I was given the careful guidance of teachers Hsu,
To help me collect a lot I can not find the information. Yuan teachers completed the arduous task of teaching, while towing tired of the daily physical, to our work carefully review the situation against us, on a patient, from design to the principles of structure and function, to A lot of guidance, so that we have to design the machine gained a deeper understanding of the same group here also like to thank the enthusiastic help students, the students have always smiling face of my question, patiently explained to me for some The problem is more clear understanding.
Keywords ：The overall structure layout    Transmission  Feed system
Main drive system      
                            目  錄
摘要 I
Abstrac II
1．緒論 1
1.1  數(shù)控機床的產(chǎn)生及發(fā)展 1
1.2 數(shù)控機床的組成及分類 2
2. 設(shè)計的主要參數(shù)及基本思想 3
2.1 課題要求 3
2.2 設(shè)計參數(shù) 3
2.3 總結(jié)構(gòu)設(shè)計 4
2.4 銑床總布局的確定 5
3. 數(shù)銑床的設(shè)計和計算 7
3.1 主傳動系統(tǒng)的設(shè)計 7
3.2主傳動系統(tǒng)的計算 9
3.3 進給系統(tǒng)的設(shè)計 12
3.4 進給系統(tǒng)的計算 13
4 數(shù)控系統(tǒng)的介紹及選擇 29
4.1數(shù)控及計算機數(shù)控 29
4.2 計算機數(shù)控系統(tǒng)的內(nèi)部工作過程 30
4.3 CNC系統(tǒng) 31
4.4數(shù)控系統(tǒng)的特點 31
5 .夾具的選擇及介紹 32
5.1 數(shù)控銑床夾具介紹 32
5.2 技術(shù)要求 33
5.3 對夾具零部件的要求 35
結(jié)論 37
致謝 39
參考文獻 40
附錄 41