本文選題：特種供送螺桿 + 變螺距螺旋線��； 參考：《燕山大學(xué)》2015年碩士論文

【摘要】：在高速供送領(lǐng)域,采用螺桿供送在準(zhǔn)確性、穩(wěn)定性和靈活性方面表現(xiàn)出了巨大的優(yōu)越性,使得供送螺桿成為高速供送線上不可或缺的關(guān)鍵部件,其性能的優(yōu)劣關(guān)系到整條生產(chǎn)線的先進(jìn)程度。由于該類螺桿結(jié)構(gòu)非常復(fù)雜,目前,國(guó)內(nèi)在各類供送螺桿特別是特種供送螺桿的設(shè)計(jì)和制造技術(shù)方面的研究尚不完善,設(shè)計(jì)制造的螺桿不能滿足現(xiàn)代高速供送線的生產(chǎn)要求。因此對(duì)該類供送螺桿的設(shè)計(jì)和制造進(jìn)行研究,具有重要的理論意義和工程價(jià)值。為進(jìn)一步提高螺桿高速供送的穩(wěn)定性,本文提出一種新的變加速度運(yùn)動(dòng)規(guī)律螺旋線模型,并在此基礎(chǔ)上探討了組合式螺旋線的構(gòu)建方法�；诳臻g包絡(luò)理論,面向特種供送螺桿,分析瓶/罐體幾何形狀及其任一供送時(shí)刻位姿,構(gòu)建特種供送螺桿的螺旋槽面數(shù)學(xué)模型,提出針對(duì)特定瓶/罐體的供送螺桿螺旋槽面的精確理論表達(dá)式�；贑ATIA二次開發(fā)技術(shù)開發(fā)出了特種供送螺桿的CAD建模專用程序,實(shí)現(xiàn)了螺桿從數(shù)學(xué)模型到三維模型的轉(zhuǎn)化,通過理論模型與實(shí)際模型之間的誤差分析,證明了該螺旋槽曲面數(shù)學(xué)模型構(gòu)建的準(zhǔn)確性。本文進(jìn)一步探討了特種螺桿的加工工藝,利用數(shù)控技術(shù),實(shí)現(xiàn)了螺桿從三維虛擬模型到實(shí)物模型的精確轉(zhuǎn)換。針對(duì)目前在特種供送螺桿的研究方面存在的問題,本文對(duì)變螺距螺旋線的形式、螺旋槽數(shù)學(xué)模型的構(gòu)建、螺桿三維建模方法和制造技術(shù)進(jìn)行了深入研究,實(shí)現(xiàn)了復(fù)雜螺旋曲面的精確構(gòu)型,具有重要的學(xué)術(shù)研究意義和工程價(jià)值。
[Abstract]:In the field of high speed supply and delivery, the use of screw feed has shown great superiority in accuracy, stability and flexibility, which makes the feed screw become an indispensable key component on the high speed feed line. The quality of its performance relates to the advanced degree of the whole production line. Because the structure of this kind of screw is very complex, at present, the research on the design and manufacture technology of various kinds of screw, especially special screw, is not perfect, and the design and manufacture of the screw can not meet the production requirements of modern high-speed feed line. Therefore, it is of great theoretical significance and engineering value to study the design and manufacture of this kind of feed screw. In order to further improve the stability of high speed screw feeding, a new helical model of variable acceleration law is proposed, and the construction method of combined helix is discussed. Based on the theory of space envelope, the geometric shape of the bottle / tank and its position at any feeding time are analyzed for the special feed screw, and the mathematical model of the helical groove surface of the special feed screw is constructed. An exact theoretical expression for the helical groove surface of the feeding screw for a specific bottle / tank is presented. Based on the secondary development technology of CATIA, the special program of CAD modeling for special feed screw is developed. The transformation from mathematical model to three-dimensional model of screw is realized, and the error analysis between theoretical model and practical model is carried out. The accuracy of constructing the mathematical model of helical groove surface is proved. In this paper, the machining technology of special screw is discussed, and the precise transformation of screw from 3D virtual model to real model is realized by using numerical control technology. Aiming at the problems existing in the research of special screw supply and feeding, the form of variable pitch helix, the construction of mathematical model of spiral groove, the 3D modeling method and manufacturing technology of screw are studied in this paper. The precise configuration of complex helical surfaces is realized, which is of great academic significance and engineering value.
【學(xué)位授予單位】：燕山大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：TH22;TH16

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