畢業(yè)設計經(jīng)濟型數(shù)控車床的改造設計
論文說明書共43頁，字數(shù)總計：18239
資料簡介：
畢業(yè)設計說明書.doc
A0-橫向進給床鞍.dwg
A0-橫向進給系統(tǒng)裝配圖.dwg
A3-橫向螺母座.dwg
A1-螺母座托架.dwg
A0-縱向進給系統(tǒng)裝配圖.dwg
A2-縱向螺母座.dwg
A3-縱向軸承座.dwg
經(jīng)濟型數(shù)控車床的改造設計
摘要
經(jīng)調(diào)研發(fā)現(xiàn)，我國大多數(shù)企業(yè)擁有數(shù)量眾多和較長使用壽命的普通機床，其加工精度較低，不能批量生產(chǎn)，自動化程度不高，適應性差，但考慮投資成本，產(chǎn)業(yè)的連續(xù)性，又不能馬上被淘汰。
購買新的數(shù)控機床是提高產(chǎn)品質(zhì)量效率的重要途徑，但成本高，許多企業(yè)在短期內(nèi)無法實現(xiàn)，這嚴重阻礙企業(yè)設備更新的步伐。為此把普通車床數(shù)控化改造，不失為一條投資少，提高產(chǎn)品質(zhì)量和生產(chǎn)效率的的捷徑，提升企業(yè)競爭力，在我國成為制造強國的進程中占有一席之地。
本文以普通車床CA6132數(shù)控化改造為例，從普通車床改造的經(jīng)濟性評價入手，對數(shù)控技術在普通車床CA6132數(shù)控化改造應用作了深入研究和探索，形成相應的技術方案及要點。主要內(nèi)容：
對普通車床數(shù)控化改造經(jīng)濟性評價詳細論證，確定普通車床數(shù)控化改造方案；對進給系統(tǒng)的滾珠絲杠型號選擇與裝配設計，支承方式的設計與軸承型號的選擇，步進電機的選擇等進行詳細研究; 對常用進口數(shù)控裝置系統(tǒng)和國產(chǎn)數(shù)控裝置系統(tǒng)進行仔細比較，根據(jù)所改造的性能和精度指標來選擇數(shù)控裝置系統(tǒng)和自動刀架型號； 給出普通車床數(shù)控化改造的安裝及調(diào)試方法。
關鍵詞：普通車床； 數(shù)控改造； 伺服系統(tǒng)； 數(shù)控系統(tǒng)
The transformation and design of the economic CNC lathe ABSTRACT
The survey found that most enterprises of china still have large amounts general-purpose machine tools which have longevity of service, low precision, can not adapt to mass production , low automatization and adaptability ,but can not be washed out because of its low cost and continuity of enterprise's production
Purchasing new numerically controlled machines is an important way to improve production precision and efficiency, but it may not come true to many enterprises because it cost much. Enterprise's equipment updating step are counteracted severly. So General lathe's numerically controlled reforming is a quick way that costs less, improve production precision and efficiency, and it can improve enterprises' competitive power. So it can takes its place in our way to a powerful manufacturing country.
The economical efficiency of the reform and the application of NC technology in General purpose lathe CA6132's numerically controlled reforming is researched in this paper according to our practice of CA6132's numerically controlled reforming. And the reforming scheme and main points are formed. The main contents is:
The economical efficiency of the reform is eva luated in detail and the rerorming scheme is maked according to misty optimum's synthesize adjudicate principle.The ball screw's type, assembling, supporting, bearing type, and stepping motor of feeding system is designed.he import and domestic NC systems were compared carefully, brought up a choose method and selected the NC system and automatic tool rest according to the function. Methods of installing and testing of general purpose lathe's numerically controlled reforming were put forward. KEY WORDS: General purpose lathe; NC reform ; Servo system ; CNC system
目錄
摘要 2
第一章 前言 5
1.1 課題背景 5
1.2 機床改造的內(nèi)容及意義 6
1.2.1 研究意義 6
1.2.2 主要研究內(nèi)容及技術路線 7
1.3 機床的經(jīng)濟型數(shù)控化改造主要解決的問題 7
第二章 CA6132普通數(shù)控車床改造設計要求 7
2.1 總體方案設計及要求 7
2.2 設計參數(shù) 8
第三章 車床進給系統(tǒng)的改造設計 10
3．1縱向(Z向)進給系統(tǒng)的設計及計算 11
3．1 . 1切削力計算和主傳動電機功率校核 11
3．1．2 Z向滾珠絲杠設計計算 13
3．1．3 Z向步進電動機的選擇及計算 17
3．1．4縱向(Z向)進給系統(tǒng)的軸承設計計算 19
3.1.5.縱向凸緣聯(lián)軸器的選擇 21
3.1.6. 縱向聯(lián)軸器上鍵的選擇 22
3．2橫向(X向)進給系統(tǒng)的設計及計算 22
3．2．1計算X向滾珠絲杠軸向力Q 23
3．2．2 X向滾珠絲杠設計計算 23
3．2．3 X向步進電動機的選擇及計算 27
3．2．4橫向(x向)進給系統(tǒng)的軸承設計計算 30
3.2.5 橫向凸緣聯(lián)軸器的選擇 31
3.2.6 橫向聯(lián)軸器上鍵的選擇 32
3.3 非標準零件的設計選擇 32
3.3.1軸承蓋的設計 32
3.4 進給系統(tǒng)的裝配圖的繪制 33
第四章 自動回轉刀架的設計選型 34
4．1數(shù)控車床刀架的基本要求 34
4．2數(shù)控車床刀架的選型 34
4. 3自動回轉刀架的工作原理 35
第五章 CA6132車床數(shù)控化改造的數(shù)控系統(tǒng) 35
5．1數(shù)控系統(tǒng)概述 35
5．2 CA6132車床數(shù)控化改造的數(shù)控裝置系統(tǒng)的選擇 36
5．3 脈沖發(fā)生器 39
5.4 CA6132車床數(shù)控化改造的數(shù)控系統(tǒng)功能 40
第六章 經(jīng)濟型數(shù)控車床的安裝與調(diào)試 42
結 論 43