購買設計請充值后下載，，資源目錄下的文件所見即所得，都可以點開預覽，，資料完整，充值下載可得到資源目錄里的所有文件。。?！咀ⅰ浚篸wg后綴為CAD圖紙，doc,docx為WORD文檔，原稿無水印，可編輯。。。具體請見文件預覽，有不明白之處，可咨詢QQ:12401814
I 摘 要 隨著信息技術的進步和全球化制造技術的進步，企業(yè)為了提高自身的競爭力，要求配 置效率更高成本更低的加工設備，而傳統(tǒng)機床在未來的加工業(yè)中會遇到難以克服的困難， 例如在高速加工中（軌跡速度達到 50m/min）和高效空間曲面加工及機床的通用性方面將 無法滿足現代加工技術的要求。因此探索和研究一種現代化機床具有十分重要的意義。 虛擬軸機床與傳統(tǒng)的串聯式數控機床相比具有很多優(yōu)越性。傳統(tǒng)數控機床各自由度是 串聯相接的，呈懸臂結構，且層疊嵌套致使傳動鏈長，傳動系統(tǒng)復雜，累計誤差大，而精 度低，成本昂貴，至今多數機床只是 4 軸聯動，極少 5 軸。而虛擬軸機床的并聯式加工中 心結構特別簡單，傳動鏈極短，剛度大、質量輕、切削效率高、響應快，特別是很容易實 現六軸聯動，因而，能加工更復雜的三維曲面，且其加工精度和加工粗糙度都直接由控制 程序來保證，因此，硬件成本低，而軟件附加值高，是一種技術附加值極高的機電一體化 產品。 此研究課題針對現今的機加工趨向，制定了設計一部并聯機床實驗臺的任務，作者與 合作人共同設計。其中的并聯部分分配給了合作者，作者主要負責并聯機床實驗臺的總體 框架結構設計。 平臺大致由并聯機構——三根并聯絲杠（驅動電機） 、鑄鐵機架、裝卡平臺和電主軸以 及彈簧銑夾頭組成。 關鍵詞：并聯機構、虛軸加工、雅可比矩陣、正解算法 II Abstract With the progress of the information technology and the development of the global manufacturing techniques, enterprises require more efficient and lower cost machines by reason of enhancing their competitive ability. But conventional machine tools will encounter many difficulties which are hard to overcome in the future, for instance of high-speed machining ( path speed exceeding 50m/min)and high efficient space curved surfacing machining as well as flexibility of machines. Thus, it is very important to explore and study kind of modern machines. Be compared to the normal numerical control machine tool, it has larger rigidity, stronger carrying capacity, smaller error, higher precision, smaller ratio of self-weight and load, better dynamical capacity, less investment of hardware, but stronger function of software. All of these show its high additional technical valve. This research topic for the current trend of the processing machine, developed a design of a parallel machine test-bed task, which the Author co-design and a partner. Some of them parallel to the allocation of the partner, the author mainly responsible for the PMT test-bed framework of the overall structural design. Platform from roughly parallel bodies - three parallel screw (motor driven), cast iron rack, with card platform and Spindle and milling chucks of spring. Key words: parallel instruction, virtual axis processing, Jacobian Matrix, positive solution algorithm III 目 錄 第 1 章 緒論 ........................................................................................................................................1 1.1 課題背景與意義 ..................................................1 1.2 并聯機床發(fā)展歷史及現狀 ...........................................2 1.3 本文主要研究內容 .................................................5 第 2 章 重要零部件選型 ................................................................................................................6 2.1 依照主軸功率確定電主軸型號 ........................................6 2.2 選擇主軸下部刀具夾頭 .............................................7 2.3 選擇工件的裝卡方式 ...............................................8 第 3 章 實驗臺支承部分及其連接的方案 .............................................................................11 3.1 機架的設計方案 ..................................................11 3.2 鑄造機架的材料及熱處理 ...........................................14 3.3 機架的截面形狀、壁厚及周邊筋的布置 ................................14 3.4 立柱與底座的連接方式 ............................................16 3.5 底座的造型 .....................................................16 第 4 章 實驗臺驅動電路 ..............................................................................................................17 4.1 電路布線方案 ...................................................17 4.2 電路控制要求 ...................................................17 4.3 電路控制連線原理圖 ..............................................17 第 5 章 實驗結果及三維建模 .....................................................................................................18 5.1 設計并聯實驗臺結果 ..............................................18 5.2 實驗臺 SOLIDWORKS 建模 .............................................18 第 6 章總結與展望 ..........................................................................................................................19 參考文獻 .............................................................................................................................................20 致 謝 ..................................................................................................................................................20