X5020B立式升降臺銑床拔叉殼體工藝規程制訂
加工工藝規程制訂及其工序專用夾具的設計
X5020B立式升降臺銑床撥叉殼體
摘 要：本次設計拋開以往的設計思想，濃縮了一個新方案。通過對X5020B立式升降臺銑床撥叉殼體
兩種加工工藝路線的比較分析，選定前者。該方案是以三個面作為基準，實現基準統一原則，簡化了隨行
夾具的設計，從而在保證所要求的質量和勞動生產率指標的前提下降低了生產成本。而且專用夾具的
設計嚴格按照先收集和研究有關資料，再確定夾具的結構方案，然后繪制夾具總圖，最后確定并標注
有關尺寸及技術條件的步驟進行，充分體現了提高勞動生產率、保證加工質量、降低勞動強度的原則，
論文中將以詳細的計算和說明證明這一說法。
關鍵詞：撥叉殼體；加工工藝；夾具
Abstract：This design gets rid of the traditional thoughts, and tries a new method. Through design techinics regulations for
machining of the X5020B vertical lift platform mill machine .There are two schemes to select. At last ,we choose the former after analyzing the structure and the efficiency of the part. In this scheme, we can get to the fiducial unity and simplify special clamp designing base on three planes，so that cut down the product cost with making sure the demand of the quality and labor productivity. Also, according to getting together and studying much datum, I design the special clamp for two holes .Firstly, decide the scheme for the structure of clamp ;Secondly, draw the collectivity drawing, At last, label the joint dimensions., which enhances the work productivity, and makes certain the product quality, and reduce the labor intensity .In the paper, we layout the detailed calculate and explation.
Keywords：extract fork shell；techinics regulations；clamp
目 錄
摘要
前言
１ 畢業設計任務書----------------------------------------------------------------------------------4
２ 零件的結構功用分析----------------------------------------------------------------------------4
３ 材料及毛坯種類的選用-------------------------------------------------------------------------5
４ 基面的選擇----------------------------------------------------------------------------------------7
５ 工藝路線的制訂----------------------------------------------------------------------------------8
６ 確定機械加工余量、工序尺寸及公差-------------------------------------------------------10
７ 確定切削用量、工時定額及切削力和切削功率-------------------------------------------21
８ 專用夾具設計
８.１ X5020B工件技術分析-----------------------------------------------------------------22
８.２ 工序內容總體方案的擬定-------------------------------------------------------------24
８.３ 定位方案的擬定-------------------------------------------------------------------------25
８.４ 夾緊力的計算和夾緊結構-------------------------------------------------------------27
８.５ 定位誤差分析及夾具精度分析-------------------------------------------------------29
８.６ 鏜模裝配總圖的繪制-------------------------------------------------------------------30
８.７ 零件圖的繪制----------------------------------------------------------------------------31
８.８ 部分典型結構及數據-------------------------------------------------------------------32
９ 結論
１０ 致謝
１１ 參考文獻
１２ 注釋
１３ 附錄 ...
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