基于实例推理的数控滚齿加工工艺数据库的开发与研究
发布时间：2018-07-29 07:17
【摘要】：在机械行业中,滚齿是加工齿轮常用的一种方法,其加工因素较为复杂,加工工艺的确定大多依靠工人经验,还未形成较规范的加工工艺体系,这些问题给经验不足的工作人员带来了麻烦。考虑到这些问题,建立基于实例推理的滚齿加工工艺数据库,将实例推理技术应用于滚齿加工工艺中,用以往加工积累的数据和经验去解决新工件的加工,为解决新工件加工中的困难提供了一种有效的解决办法。同时,云存储平台的接入能够有效地存储大量工艺数据,实现了分布式数据存储与数据共享。本文主要内容有:1.认真分析了数据库的一些基本概念、设计过程,综合比较几种嵌入式数据库管理系统,最终选择SQLite作为数据库管理软件。分析了数据库的具体需求,并对数据库系统进行总体设计。2.在Windows系统下搭建云存储平台,将分布式云存储技术应用于数控滚齿加工工艺数据库,并建立数据共享浏览器,实现了数据共享与同步。3.实例推理技术与遗传算法相结合实现了数据库的智能决策。在实例检索中,利用整体相似度的计算公式查询出实例库中与新实例最相似的旧实例,并设定阈值提高检索效率。在实例修改中,用遗传算法优化工艺参数,对加工过程中切削参数的选取具有重要的意义。4.介绍了本系统的开发平台及运行环境,实现了系统各功能模块。针对数据库的安全性,将基于角色访问控制模型引入数据库系统的权限管理中,通过不同角色赋予不同功能的原则实现了数据的安全管理。
[Abstract]:In the machinery industry, gear hobbing is a common method of machining gear, its processing factors are more complex, the processing technology depends mostly on the workers' experience, and it has not formed a more standard processing system. These problems bring trouble to the less experienced workers. Considering these problems, the hobbing processing based on case reasoning is established. The process database is applied to the hobbing process. The processing of the new workpiece is solved by the data and experience accumulated in the past. It provides an effective solution to solve the difficulties in the processing of the new workpiece. At the same time, the access of the cloud storage platform can effectively store a large amount of process data and realize the distribution of the process data. Data storage and data sharing. The main contents of this paper are as follows: 1. the basic concepts of the database, the design process, the comprehensive comparison of several embedded database management systems, and the final selection of SQLite as the database management software are selected. The specific requirements of the database are analyzed, and the overall design of the database system is.2. in the Windows system. The cloud storage platform is built, the distributed cloud storage technology is applied to the CNC hobbing processing database, and the data sharing browser is set up. The data sharing and synchronization.3. case reasoning technology and genetic algorithm are combined to realize the intelligent decision of the database. The most similar old instance in the case base and the new instance, and setting the threshold to improve the retrieval efficiency. In the case modification, the genetic algorithm is used to optimize the process parameters, and it has important significance to the selection of the cutting parameters in the processing process..4. introduces the development platform and operating environment of the system, and realizes the function modules of the system. Full nature, the role based access control model is introduced into the authority management of the database system, and the security management of the data is realized through the different roles of different roles.
【学位授予单位】：合肥工业大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TG612;TP311.13
本文编号：2151925
[Abstract]:In the machinery industry, gear hobbing is a common method of machining gear, its processing factors are more complex, the processing technology depends mostly on the workers' experience, and it has not formed a more standard processing system. These problems bring trouble to the less experienced workers. Considering these problems, the hobbing processing based on case reasoning is established. The process database is applied to the hobbing process. The processing of the new workpiece is solved by the data and experience accumulated in the past. It provides an effective solution to solve the difficulties in the processing of the new workpiece. At the same time, the access of the cloud storage platform can effectively store a large amount of process data and realize the distribution of the process data. Data storage and data sharing. The main contents of this paper are as follows: 1. the basic concepts of the database, the design process, the comprehensive comparison of several embedded database management systems, and the final selection of SQLite as the database management software are selected. The specific requirements of the database are analyzed, and the overall design of the database system is.2. in the Windows system. The cloud storage platform is built, the distributed cloud storage technology is applied to the CNC hobbing processing database, and the data sharing browser is set up. The data sharing and synchronization.3. case reasoning technology and genetic algorithm are combined to realize the intelligent decision of the database. The most similar old instance in the case base and the new instance, and setting the threshold to improve the retrieval efficiency. In the case modification, the genetic algorithm is used to optimize the process parameters, and it has important significance to the selection of the cutting parameters in the processing process..4. introduces the development platform and operating environment of the system, and realizes the function modules of the system. Full nature, the role based access control model is introduced into the authority management of the database system, and the security management of the data is realized through the different roles of different roles.
【学位授予单位】：合肥工业大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TG612;TP311.13
【参考文献】
相关期刊论文 前10条
1 谢智明;邓朝晖;刘伟;刘涛;彭克立;;扩展型混合磨削云PAAS系统的研究与设计[J];中国机械工程;2015年21期
2 李尧;刘强;张伟;;面向制造服务的数控切削数据库系统[J];计算机集成制造系统;2014年09期
3 刘宇;闵栋;;HTML5在移动互联网中的机遇与挑战[J];电信网技术;2013年05期
4 王超;陈性元;;基于加权熵的访问控制策略安全性分析研究[J];电子学报;2013年01期
5 廖红强;邱勇;杨侠;王星刚;葛任伟;;对应用层次分析法确定权重系数的探讨[J];机械工程师;2012年06期
6 李春青;李海生;;Web数据库技术及其发展趋势[J];软件导刊;2012年02期
7 李冲;熊淑华;魏颖颖;;基于CSS与JavaScript技术的Tab面板的设计与实现[J];计算机技术与发展;2011年03期
8 陆勇;;云计算与分布式、并行处理以及网格计算的关系[J];记录媒体技术;2010年03期
9 刘冰;申丽红;李涛;;知识库系统原理探讨[J];软件导刊;2009年09期
10 蒋占四;陈立平;罗年猛;;最近邻实例检索相似度分析[J];计算机集成制造系统;2007年06期
，本文编号：2151925
本文链接：https://www.wllwen.com/kejilunwen/jiagonggongyi/2151925.html
