光學玻璃精密模壓成型設備結(jié)構(gòu)設計
發(fā)布時間:2018-04-23 04:33
本文選題:玻璃模壓機 + 結(jié)構(gòu); 參考:《深圳大學》2017年碩士論文
【摘要】:光學玻璃模壓成型技術(shù)是一種精密復制成型技術(shù)。相比于傳統(tǒng)加工技術(shù),如拋光、磨削,它具有一次成型,高效率低成本,適合批量生產(chǎn)等優(yōu)點。隨著高精密光學玻璃透鏡的使用日益廣泛,這項技術(shù)得到快速發(fā)展。我國這項技術(shù)相對落后,國內(nèi)使用的玻璃模壓設備基本依靠進口,為適應國內(nèi)高精密玻璃透鏡的使用量急劇增長,我國亟需掌握玻璃模壓成型技術(shù),研制擁有自主產(chǎn)權(quán)的玻璃模壓設備。本課題依托于深港創(chuàng)新圈項目(精密玻璃光學顯微結(jié)構(gòu)的微納印壓裝置及加工技術(shù)之研發(fā))對玻璃模壓設備進行研發(fā)。玻璃模壓設備分為四個部分:結(jié)構(gòu)、加熱系統(tǒng)、模具、控制系統(tǒng)。本設備設計中,將這四部分由四名研究生負責研發(fā)。本文對高精密光學玻璃模壓成型機結(jié)構(gòu)進行設計,主要內(nèi)容如下:(1)根據(jù)工作原理設計玻璃模壓機傳動結(jié)構(gòu),設計三種傳動方案,對比各方案的優(yōu)缺點,最終確定最合適方案作為本設備傳動方案。并對相關(guān)零部件進行選型。(2)本設備合模精度高,結(jié)構(gòu)設計中針對精度保證進行多個方案設計,主要方法是分級精度控制與定心裝置保證合模。即先用結(jié)構(gòu)將上下模同軸度控制在定心裝置誤差調(diào)節(jié)范圍內(nèi),在合模時通過定心裝置調(diào)整上模位置,讓模具導柱通過倒角的引導實現(xiàn)安全合模。(3)根據(jù)傳動部件和其它零部件的尺寸及安裝位置與安裝方式進行機架設計,本設備機架由方鋼焊接而成。機架結(jié)構(gòu)設計完成后,用ANSYS Workbench進行靜力仿真,對受力集中位置進行結(jié)構(gòu)改進,最終確定機架結(jié)構(gòu)。再對確定機架進行模態(tài)分析,查看機架振動特性,提出機架振動防止方案。(4)設計本設備其它結(jié)構(gòu),主要介紹了中間軸上零部件的設計。中間軸結(jié)構(gòu)是本設備的核心結(jié)構(gòu),模具、傳動、加熱系統(tǒng)都安裝于軸上相應位置。主要內(nèi)容為:對受力大的部件進行受力分析,對水冷塊進行結(jié)構(gòu)設計,對密封位置的密封原理及密封圈安裝位置進行設計。設計加熱罩運動方案,采用無桿氣缸帶動加熱罩上下運動。(5)設計機器外觀鈑金,完成最終裝配體。
[Abstract]:Optical glass molding technology is a kind of precision copy molding technology. Compared with the traditional processing technology, such as polishing and grinding, it has the advantages of one-off molding, high efficiency and low cost, suitable for mass production and so on. With the increasing use of high-precision optical glass lenses, this technology has been developed rapidly. This technology is relatively backward in China, and the glass molding equipment used in China basically depends on imports. In order to adapt to the rapid increase in the use of high-precision glass lenses in China, it is urgent for our country to master the molding technology of glass. Development of independent property rights of glass molding equipment. This project is based on the Shenzhen-Hong Kong innovation circle project (the research and development of micro-nano-printing device and processing technology of precision glass optical microstructure) to research and development of glass moulding equipment. Glass molding equipment is divided into four parts: structure, heating system, mold, control system. In the design of the equipment, the four parts will be developed by four graduate students. In this paper, the structure of high precision optical glass molding machine is designed. The main contents are as follows: (1) according to the working principle, the transmission structure of glass mould press is designed, three transmission schemes are designed, and the advantages and disadvantages of each scheme are compared. Finally determine the most suitable scheme as the transmission scheme of the equipment. The equipment has high precision of die closing, and several schemes are designed for precision assurance in structural design. The main methods are classified precision control and centering device to ensure die closing. That is to say, the upper and lower mold coaxiality is first controlled in the error range of centering device by the structure, and the upper mold position is adjusted by the centering device when the die is closed. The guide post of die can be safely closed by chamfering. (3) according to the dimensions, installation position and installation mode of transmission parts and other parts, the frame of this equipment is made of square steel welded. After the design of the frame structure is finished, the static simulation is carried out with ANSYS Workbench, and the structure of the frame structure is determined by improving the position of the stress concentration. Then the modal analysis of the frame is carried out, the vibration characteristic of the frame is checked, and the scheme of preventing the vibration of the frame is put forward. The other structures of the equipment are designed. The design of the components on the intermediate shaft is mainly introduced. Intermediate shaft structure is the core structure of the equipment, die, transmission, heating system are installed in the corresponding position on the shaft. The main contents are as follows: the mechanical analysis of the parts with large force, the structural design of the water-cooled block, the sealing principle of the sealing position and the installation position of the sealing ring. The motion scheme of heating cover is designed, and the machine appearance sheet metal is designed by using rodless cylinder to drive the heating cover up and down, and the final assembly is completed.
【學位授予單位】:深圳大學
【學位級別】:碩士
【學位授予年份】:2017
【分類號】:TQ171.63
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