半自動液壓專用銑床的液壓設計畢業論文(已修改)

　

【正文】 摘 要本次畢業設計的是半自動液壓專用銑床的液壓設計，設計主要是將自己所學的知識結合輔助材料運用到設計中，初步掌握正確的設計思想和設計的基本方法步驟,鞏固深化和擴大所學的知識,培養理論聯系實際的工作方法和獨立工作能力，以及達到正確繪制部件總裝圖和零件工作圖等方面的基本訓練及基本技能。整個設計主要完成了七個部分：參數的選擇、方案的制定、圖卡的編制、液壓系統的設計、PLC 的設計以及最后有關的驗算。主體部分基本在圖的編制和液壓系統的設計兩部分中完成的。通過這次畢業設計鍛煉了自己獨立思考和嚴謹的求學態度，了解了半自動專用銑床液壓系統的工作原理以及它的總體結構，同時我也明白了學習是一個長期積累的過程，在以后的工作、生活中都應該不斷的學習，努力提高自己知識和綜合素質。關鍵詞：液壓設計；半自動；銑床；…… IABSTRACTThis graduation design is a semi automatic hydraulic special milling machine hydraulic design, design is mainly to bine the knowledge of auxiliary materials used in design, the preliminary master the correct design idea and basic steps to consolidate, deepen and expand the knowledge, training theory with the actual method of work and work independently ability, and to achieve the correct rendering of part work and parts assembly diagram and other aspects of the basic training and basic skills. The design was pleted in seven parts: parameter selection, scheme, card making, hydraulic system design, PLC design and related calculation at. The main part of the basic in map pilation and the design of hydraulic system in the two part plete.Through this graduation design exercise their own independent thinking and rigorous learning attitude, understanding of the semi automatic special milling machine hydraulic system principle of work as well as its overall structure, at the same time, I also understand that learning is a longterm accumulation process, in the future work, life should continue to study, work hard to improve their knowledge and prehensive qualityKey words：hydraulic ；designautomatic；milling machine；II目 錄摘 要 ............................................................................................................................................IABSTRACT....................................................................................................................................II1 緒論 .............................................................................................................................................1 課題研究的目的 .................................................................................................................1 銑床的簡介 .........................................................................................................................1 銑床介紹 ....................................................................................................................1 銑床的發展 ................................................................................................................1 液壓系統的發展歷程及特點 .............................................................................................2 液壓的發展歷程 .......................................................................................................2 液壓系統的組成 .......................................................................................................3 液壓系統的設計步驟和內容 .............................................................................................3 本文的主要研究工作 .........................................................................................................4本章小結 ....................................................................................................................................4液壓系統的設計 .............................................................................................................................5 設計題目分析 .....................................................................................................................5 工況分析 .............................................................................................................................5 液壓缸外負載的計算 .........................................................................................................5 初步確定液壓缸參數及繪制工況圖 .................................................................................7 設計方案，初擬定液壓系統原理圖 .................................................................................9 計算和選擇液壓元件 .......................................................................................................10 驗算液壓系統性能 ...........................................................................................................153 液壓缸的設計 .........................................................................................................................20 液壓缸的主要零件及技術要求 .......................................................................................20 缸體 .........................................................................................................................20 缸蓋 .........................................................................................................................20 活塞 .........................................................................................................................20 液壓缸主要尺寸的確定 ...................................................................................................21. 液壓缸工作壓力的確定 .......................................................................................21 液壓缸內徑 D 和活塞桿直徑 d 的確定 .................................................................21 液壓缸壁厚和外徑的計算 .....................................................................................22 液壓缸工作行程的確定 .........................................................................................23 缸蓋厚度的確定 .....................................................................................................23 最小導向長度的確定 .............................................................................................24 缸體長度的確定 .....................................................................................................24 活塞桿穩定性的計算 .............................................................................................24III 液壓缸結構的設計 ...........................................................................................................25 缸體與缸蓋的連接形式 ........