光学玻璃精密模压成型设备结构设计

发布时间：2018-04-23 04:33

本文选题：玻璃模压机 + 结构　；参考：《深圳大学》2017年硕士论文

【摘要】：光学玻璃模压成型技术是一种精密复制成型技术。相比于传统加工技术,如抛光、磨削,它具有一次成型,高效率低成本,适合批量生产等优点。随着高精密光学玻璃透镜的使用日益广泛,这项技术得到快速发展。我国这项技术相对落后,国内使用的玻璃模压设备基本依靠进口,为适应国内高精密玻璃透镜的使用量急剧增长,我国亟需掌握玻璃模压成型技术,研制拥有自主产权的玻璃模压设备。本课题依托于深港创新圈项目(精密玻璃光学显微结构的微纳印压装置及加工技术之研发)对玻璃模压设备进行研发。玻璃模压设备分为四个部分:结构、加热系统、模具、控制系统。本设备设计中,将这四部分由四名研究生负责研发。本文对高精密光学玻璃模压成型机结构进行设计,主要内容如下:(1)根据工作原理设计玻璃模压机传动结构,设计三种传动方案,对比各方案的优缺点,最终确定最合适方案作为本设备传动方案。并对相关零部件进行选型。(2)本设备合模精度高,结构设计中针对精度保证进行多个方案设计,主要方法是分级精度控制与定心装置保证合模。即先用结构将上下模同轴度控制在定心装置误差调节范围内,在合模时通过定心装置调整上模位置,让模具导柱通过倒角的引导实现安全合模。(3)根据传动部件和其它零部件的尺寸及安装位置与安装方式进行机架设计,本设备机架由方钢焊接而成。机架结构设计完成后,用ANSYS Workbench进行静力仿真,对受力集中位置进行结构改进,最终确定机架结构。再对确定机架进行模态分析,查看机架振动特性,提出机架振动防止方案。(4)设计本设备其它结构,主要介绍了中间轴上零部件的设计。中间轴结构是本设备的核心结构,模具、传动、加热系统都安装于轴上相应位置。主要内容为:对受力大的部件进行受力分析,对水冷块进行结构设计,对密封位置的密封原理及密封圈安装位置进行设计。设计加热罩运动方案,采用无杆气缸带动加热罩上下运动。(5)设计机器外观钣金,完成最终装配体。
[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.
【学位授予单位】：深圳大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TQ171.63

【参考文献】