本文選題：矯形器　切入點：可重構模具　出處：《寧波大學》2013年碩士論文　論文類型：學位論文

【摘要】：隨著數(shù)字化制造技術的發(fā)展，在上世紀八十年代，計算機輔助設計和計算機輔助制造（CAD/CAM）及逆向工程技術（RE）開始用于矯形器制造領域，為矯形器的制造帶來了重大變革。數(shù)字化制造技術是當代最受重視、最具有吸引力的制造技術之一，基于可重構模具的方法來研究人體矯形器的制造開拓了數(shù)字化制造的新領域。本文以人體腿部矯形器為例，對人體腿部數(shù)據(jù)采集、腿部矯形器的可重構模具設計、可重構模具調形及后處理等關鍵技術進行了研究，具體內容如下： 對國內外矯形器數(shù)字化制造的主要方法做了分析和總結，著重對矯形器數(shù)字化制造相關的專利和文獻做了介紹。 在人體腿部數(shù)據(jù)采集與處理方面，選用激光三角形法進行數(shù)據(jù)采集，先高斯濾波然后注冊合并數(shù)據(jù)的處理方法得到腿部數(shù)據(jù)STL文件，最后介紹了STL文件的讀取流程。 為了滿足人體腿部的基本尺寸和醫(yī)療器械對成形曲面表面的要求，設計開發(fā)了一款可重構模具。在消除可重構單元體孔隙方法，采用了上部為方形的螺帽的設計方案；在選擇可重構單元體驅動方式方面，采用了下部為螺桿的設計方案。 對針對矯形器制造的可重構模具成形面的造型原理進行了研究，提出了基于三維掃描技術的曲面造型方法，建立了可重構模具數(shù)字化模型，，詳細闡述了可重構單元體高度計算的原理。 對利用數(shù)控機床進行調形的原理、調形方法進行了研究，并開發(fā)了具有獨立自主知識產權的調形軟件。調形軟件集數(shù)據(jù)輸入輸出、可重構高度計算、虛擬現(xiàn)實、G代碼自動生成功能與一體，使可重構模具可在數(shù)控機床驅動下自動完成調形任務。 為了消除可重構臺階效應的影響，提出了利用數(shù)控機床對調形后的可重構模具進行后續(xù)加工的方法。通過對調形后的可重構模具進行銑削加工，大大消除了臺階效應的影響，提高了可重構模具表面質量。 通過以上的研究，解決了矯形器制造過程中的數(shù)據(jù)采集及處理、可重構模具設計、調形及顯示、臺階效應消除等關鍵問題，對矯形器的數(shù)字化制造做了有益的探索。
[Abstract]:With the development of digital manufacturing technology, in -20s, CAD / CAM and reverse engineering technology began to be used in the field of orthosis manufacturing. Digital manufacturing technology is one of the most important and attractive manufacturing technologies in modern times. Based on the method of reconfigurable mould, the research on the manufacture of human orthosis has opened up a new field of digital manufacturing. In this paper, taking the human leg orthosis as an example, the data collection of human leg and the design of reconfigurable mould for leg orthosis are discussed. The key technologies such as reconfigurable die profile adjustment and post-processing are studied. The specific contents are as follows:. The main methods of digital orthosis manufacturing at home and abroad are analyzed and summarized, and the patents and literatures related to digital orthosis manufacturing are introduced. In the aspect of human leg data acquisition and processing, the laser triangle method is used to collect the data. Gao Si filter and then register the data processing method to get leg data STL file. Finally, the reading flow of STL file is introduced. In order to satisfy the basic size of human legs and the requirements of medical instruments for forming curved surface, a reconfigurable die was designed and developed. In the method of eliminating the pore of reconfigurable unit, the design scheme of nut with square upper part was adopted. In the selection of reconfigurable unit drive mode, the lower part of the screw is adopted. The modeling principle of reconfigurable die surface for orthosis manufacturing is studied. A surface modeling method based on 3D scanning technology is proposed, and a digital model of reconfigurable die is established. The principle of height calculation of reconfigurable unit is described in detail. In this paper, the principle and method of profile adjustment using NC machine tools are studied, and the modulation software with independent intellectual property is developed. The software sets data input and output, and reconfigurable height calculation. The function of automatic generation of G code in virtual reality can make the reconfigurable mould realize the task of adjusting shape automatically under the drive of NC machine tool. In order to eliminate the influence of the reconfigurable step effect, a method of machining the reconfigurable mould with NC machine tool is put forward. The influence of the step effect is greatly eliminated by milling the reconfigurable mould after adjusting the shape. The surface quality of reconfigurable die is improved. Through the above research, the key problems in the process of orthosis manufacturing, such as data acquisition and processing, reconfigurable die design, shape adjustment and display, step effect elimination, etc., have been solved, and useful exploration has been made for the digital manufacture of orthosis.
【學位授予單位】：寧波大學
【學位級別】：碩士
【學位授予年份】：2013
【分類號】：TH789

【共引文獻】

相關期刊論文 前5條

1 劉樹峰;;數(shù)字技術于金隆備件制造中的應用[J];銅業(yè)工程;2014年02期

2 周楊;胡義剛;李琦;;基于CMM的曲面反求夾具設計[J];輕工機械;2014年05期

3 徐超;王兆青;鐵治欣;凌向峰;;一種基于模型驅動的建筑幕墻虛擬自動裝配方法[J];浙江理工大學學報;2014年09期

4 李瑞祥;王宗彥;李靜;;基于參數(shù)化變型設計的機床夾具庫設計[J];制造技術與機床;2014年09期

5 莫海軍;周佳軍;;基于Imageware的曲面重構研究[J];現(xiàn)代制造工程;2014年09期

相關會議論文 前1條

1 楊敏潔;王楊;段桂江;;無人機數(shù)字化檢測技術應用方案研究[A];2014（第五屆）中國無人機大會論文集[C];2014年

本文編號：1598979