機(jī)械畢業(yè)設(shè)計(jì)-數(shù)控回轉(zhuǎn)工作臺設(shè)計(jì)（含全套完整CAD零件圖+裝配圖+設(shè)計(jì)說明書）

摘  要

　　　數(shù)控車床今后將向中高擋發(fā)展，中檔采用普及型數(shù)控刀架配套，高檔采用動力型刀架，兼有液壓刀架、伺服刀架、立式刀架等品種，預(yù)計(jì)近年來對數(shù)控刀架需求量將大大增加。但是數(shù)控回轉(zhuǎn)工作臺更有發(fā)展前途,它是一種可以實(shí)現(xiàn)圓周進(jìn)給和分度運(yùn)動的工作臺，它常被使用于臥式的鏜床和加工中心上，可提高加工效率，完成更多的工藝，它主要由原動力、齒輪傳動、蝸桿傳動、工作臺等部分組成，并可進(jìn)行間隙消除和蝸輪加緊，是一種很實(shí)用的加工工具。本課題主要介紹了它的原理和機(jī)械結(jié)構(gòu)的設(shè)計(jì)，并對以上部分運(yùn)用AUTOCAD做圖,最后是對數(shù)控回轉(zhuǎn)工作臺提出的一點(diǎn)建議。
　　　
關(guān)鍵詞

數(shù)控回轉(zhuǎn)工作臺 齒輪傳動 蝸桿傳動 間隙消除 蝸輪加緊

Abstract
Numerical control there is in the future lathe to in will develop, the middle-grade to adopt popular numerical control knife rest form a complete set, adopt the motive force type knife rest top-grandly, have such varieties as knife rest of hydraulic pressure, servo knife rest, vertical knife rest, etc. concurrently, it is estimated that will increase to numerical control knife rest demand greatly in recent years. The development trend of the Numerical control rotary table is: With the development of numerical control lathe, numerical control knife rest begin to change one hundred sheets , electric liquid is it urge and urge direction develop while being servo to make up fast. Some originally design and is it continue electricity to use to four worker location vertical electronic machinery of knife rest mainly- exposed to control system control some designs. And use AUTOCAD to pursue to the above part, have a more ocular knowledge of electronic knife rest. The last proposition has put forward the suggestion and measure to Numerical control rotary table.

Keyword
 Numerical control rotary table； Gear drive；Worm drive；Gap elimination；  The worm gear steps up.

目錄

目錄 1
摘要 3
　Abstract
第一章 緒論 6
第二章 現(xiàn)代數(shù)控技術(shù)發(fā)展現(xiàn)狀 7
1.1  數(shù)控系統(tǒng)發(fā)展簡史及趨勢 7
1.2  數(shù)控化改造的現(xiàn)狀 11
第三章：數(shù)控回轉(zhuǎn)工作臺的原理與應(yīng)用 13
2.1  數(shù)控回轉(zhuǎn)工作的原理 13
2.2  設(shè)計(jì)準(zhǔn)則 14
2.3  主要技術(shù)參數(shù) 14
第四章：數(shù)控回轉(zhuǎn)工作臺的結(jié)構(gòu)設(shè)計(jì) 16
3.1  傳動方案的確定 16
3.2  各零部件選用及設(shè)計(jì)
3.2.2齒輪傳動的設(shè)計(jì) 18
　　3.2.3  電液脈沖馬達(dá)的選擇及運(yùn)動參數(shù)的計(jì)算 19
　　3.2.4  蝸輪及蝸桿的選用與校核 21
　　3.2.5  蝸桿與蝸輪的主要參數(shù)與幾何尺寸 22
　　3.3  校核與計(jì)算    22
　　　3.3.1軸的校核與計(jì)算 23
　　3.3.2 彎矩組合圖 24
　　3.3.3  根據(jù)最大危險截面處的扭矩確定最小軸徑 24
　　3.3.4  齒輪上鍵的選擇及校核 24
　　3.3.5 軸承的選用 25
第五章  數(shù)控技術(shù)發(fā)展趨勢 27
　　4.1 性能發(fā)展方向 27
　　4.2 功能發(fā)展方向 27
　　4.3 體系結(jié)構(gòu)的發(fā)展 28
　　4.4 智能化新一代PCNC數(shù)控系統(tǒng) 29
第六章  總結(jié) 30
致謝 31
參考文獻(xiàn) 32