數(shù)控鏜銑床轉(zhuǎn)臺設(shè)計

電氣自動化論文編號:ZD1142    論文字?jǐn)?shù):11907,頁數(shù):33

目  錄
中文摘要 1
英文摘要 2
第一章 緒  論 5
第二章 數(shù)控轉(zhuǎn)臺 6
2.1數(shù)控轉(zhuǎn)臺的現(xiàn)狀 6
2.2.數(shù)控轉(zhuǎn)臺的發(fā)展趨勢 7
第三章 數(shù)控轉(zhuǎn)臺的總體設(shè)計 8
3.1數(shù)控轉(zhuǎn)臺的功能設(shè)計  8
3.2數(shù)控轉(zhuǎn)臺的結(jié)構(gòu)設(shè)計 9
3.3 數(shù)控轉(zhuǎn)臺設(shè)計要領(lǐng)及注意事項 15
第四章  方案的具體設(shè)計 17
4.1電動機選擇 17
 4.1.1工作臺的設(shè)計要求數(shù)據(jù) 17
 4.1.2確定電動機型號 17
4.2 計算總傳動比及分配各級的傳動比 17
4.3運動參數(shù)及動力參數(shù)計算 17
 4.3.1計算各軸轉(zhuǎn)速 17
 4.3.2計算各軸的功率 18
 4.3.3計算各軸扭矩 18
4.4 齒輪傳動的設(shè)計計算和校核 18
 4.4.1選擇齒輪材料及精度等級 18
 4.4.2按齒面接觸疲勞強度設(shè)計 19
 4.4.3校核齒根彎曲疲勞強度 20
 4.4.4計算齒輪傳動的中心矩a 21
 4.4.5計算齒輪的圓周速度V 21
4.5蝸桿傳動的強度計算 22
 4.5.1蝸輪蝸桿的形成 22
 4.5.2蝸桿傳動的特點 22
 4.5.3蝸輪齒根彎曲疲勞強度計算 23
 4.5.4蝸輪齒面接觸疲勞強度計算 24
 4.6蝸桿強度的設(shè)計計算 25
 4.6.1輸入蝸桿軸的設(shè)計計算 25
 4.6.2蝸桿軸的結(jié)構(gòu)設(shè)計 25
4.7 轉(zhuǎn)臺心軸的設(shè)計計算 27
4.8滾動軸承的選擇及校核計算 28
4.9轉(zhuǎn)臺上所用的軸承 29
4.10鍵的選擇 29
第五章  總結(jié) 30
致謝 32
參考文獻 33

摘   要
 隨著我國制造業(yè)的發(fā)展，加工中心的需求也在增加，特別是四軸、五軸聯(lián)動的加工中心。作為數(shù)控機床的主要功能部件，數(shù)控轉(zhuǎn)臺在整個機床工具行業(yè)中的作用越來越重要。數(shù)控轉(zhuǎn)臺的出現(xiàn)，為加工中心和數(shù)控銑床提供了回轉(zhuǎn)坐標(biāo)，通過第四軸、第五軸驅(qū)動轉(zhuǎn)臺或分度頭完成精密角度的等分、不等分或連續(xù)的回轉(zhuǎn)加工，完成復(fù)雜曲面加工，使機床的加工范圍得以擴大。數(shù)控鏜銑床的轉(zhuǎn)臺設(shè)計,由于該機床在現(xiàn)代的企業(yè)里廣泛的應(yīng)用，因此，設(shè)計它是有很大的必要，來提高機床的生產(chǎn)效率。該轉(zhuǎn)臺還可以實現(xiàn)精確的自動分度，便于箱體加工。本次的設(shè)計主要是在知道市場上一些現(xiàn)有轉(zhuǎn)臺的技術(shù)參數(shù)的情況下，對他的內(nèi)部結(jié)構(gòu)、傳動機構(gòu)和動力機構(gòu)進行設(shè)計，論文里還對現(xiàn)在我國的數(shù)控轉(zhuǎn)臺的現(xiàn)狀和將來的發(fā)展方向進行了討論。
關(guān)鍵字：數(shù)控轉(zhuǎn)臺 銑床
 
Abstract
 
 With the development of China's manufacturing, processing centres are also increasing the demand, especially 4-axis, 5-axis processing centre. CNC machine tools as the main feature, the NC table in the whole machine tool industry in the increasingly important role. The emergence of NC table for the processing center and milling machine to provide a rotating coordinates, axis through the fourth, fifth axis drive turntable or sub-head to complete the sub-point precision, ranging from the Rotary consecutive points, or processing, complex surface processing, machine tools to expand the scope of the processing. NC boring and milling machine design of the turntable, as the machine in modern enterprises wide range of applications, so its design is very necessary to enhance the production efficiency of machine tools. The turntable can also achieve precise automatic, to facilitate the processing box. The design is in the market know that some of the existing table of the technical parameters of the circumstances, his internal structure, institutions and power transmission organizations to design, paper, China now also on the NC table of the status and future Development were discussed.
Keyword：NC rotary table；Milling machine