發(fā)布時間：2019-04-23 18:54

【摘要】：高檔數(shù)控機床是實現(xiàn)制造技術和裝備制造業(yè)現(xiàn)代化的重要基礎裝備,我國高檔數(shù)控機床設計與制造能力薄弱,嚴重影響了我國制造水平和創(chuàng)新能力的提升。機床方案的配置設計是高檔數(shù)控機床設計的重要環(huán)節(jié),直接影響機床的性能。本文結合國家科技重大專項課題,對高檔數(shù)控機床配置方案重構的關鍵技術進行研究,在此基礎上開發(fā)高檔數(shù)控機床配置方案重構的原型系統(tǒng),并通過應用案例進行應用驗證。全文的組織結構為：第一章介紹了高檔數(shù)控機床方案設計和配置方案重構技術相關的研究現(xiàn)狀,闡述了本文研究的背景、目的和意義,并給出論文的主要內容和組織結構。第二章給出了高檔數(shù)控機床配置方案重構的技術架構,并構建了配置方案重構的過程模型。第三章分析了高檔數(shù)控機床的評價指標,利用灰色關聯(lián)分析對機床配置方案進行評價擇優(yōu)。將性能指標權重分配問題轉換為多目標優(yōu)化問題,采用拉格朗日極值法進行權重求解。基于各機床配置方案的評價矩陣,計算各機床方案與理想方案解的灰色關聯(lián)度,利用可能度理論進行方案排序,得出最貼近理想方案的解。第四章通過對機床配置方案的配置單元進行劃分,構建了單元組和重構單元庫,研究配置單元間的映射關系,給出配置單元間的接口分布。對機床配置單元進行編碼,構建配置方案的編碼序列。根據(jù)評價指標權重順序確定配置單元的交叉順序,實現(xiàn)基于權重順序的配置方案重構。第五章闡述了高檔數(shù)控機床配置方案重構原型系統(tǒng)的體系結構,并介紹了系統(tǒng)模塊的功能。通過高檔數(shù)控機床配置方案重構的應用案例,對本文所提出的高檔數(shù)控機床配置方案重構技術進行應用驗證。第六章總結全文的工作和研究成果,并展望機床配置方案重構技術未來的發(fā)展方向。
[Abstract]:High-grade CNC machine tool is an important basic equipment to realize the modernization of manufacturing technology and equipment manufacturing industry. The weak design and manufacturing ability of high-grade CNC machine tool seriously affects the improvement of manufacturing level and innovation ability of our country. The configuration design of machine tool scheme is an important link in the design of high-grade CNC machine tool, which directly affects the performance of the machine tool. In this paper, the key technology of high-grade NC machine tool configuration scheme reconstruction is studied, and the prototype system of high-grade NC machine tool configuration scheme reconstruction is developed, which is verified by application cases. The organization structure of this paper is as follows: in the first chapter, the research status of high-grade NC machine tool scheme design and configuration reconstruction technology is introduced, the background, purpose and significance of this paper are expounded, and the main contents and organization structure of the paper are also given. In the second chapter, the technical framework of configuration scheme reconstruction of high-grade NC machine tools is given, and the process model of configuration scheme reconstruction is constructed. In the third chapter, the evaluation index of high-grade CNC machine tool is analyzed, and the grey relational analysis is used to evaluate and select the machine tool configuration scheme. The performance index weight allocation problem is transformed into a multi-objective optimization problem, and the Lagrangian optimization method is used to solve the weight problem. Based on the evaluation matrix of each machine tool configuration scheme, the grey correlation degree between the solutions of each machine tool scheme and the ideal scheme is calculated, and the solution which is closest to the ideal scheme is obtained by using the possibility theory to sort the schemes. In the fourth chapter, through dividing the configuration units of the machine tool configuration scheme, we construct the unit group and the refactoring cell library, study the mapping relationship between the configuration units, and give the interface distribution among the configuration units. Coding the machine tool configuration unit and constructing the coding sequence of the configuration scheme. According to the weight order of the evaluation index, the cross-sequence of the configuration units is determined and the configuration scheme reconstruction based on the weight order is realized. In the fifth chapter, the architecture of the prototype system of the configuration scheme of high-grade NC machine tool is described, and the function of the system module is introduced. Through the application case of high-grade NC machine tool configuration scheme reconstruction, the application verification of the high-grade NC machine tool configuration scheme reconstruction technology proposed in this paper is carried out. Chapter 6 summarizes the work and research results of this paper, and looks forward to the future development direction of machine tool configuration reconstruction technology.
【學位授予單位】：浙江大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：TG659

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相關博士學位論文 前1條

1 李浩;廣義產品模塊劃分與融合的關鍵技術研究[D];浙江大學;2013年

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本文編號：2463711