墊片沖孔落料復合膜畢業論(存儲版)

　　

【正文】 echnical requirements of cold stamping die, plastic mold and a higher degree of plexity. Along with the industry to improve the quality of the products, stamping products production is present many varieties, small batch, plex, largescale, precision, renewal speed of change characteristics, stamping mould is efficient, precision, long life, largescale development direction. In order to adapt to market changes, along with the rapid development of puter technology and manufacturing technology, stamping die design and manufacturing technology is by hand design, rely on artificial experience and conventional machining technology to the puter aided design (CAD), puter aided design and manufacturing of CNC machining, CNC machining is the core of the (CAD/CAM) technology transition. In the graduation design using puter aided design (CAD) assembly drawing die main parts and mould, using a numerical control machining, CNC wirecut EDM and other advanced processing technology. In this design according to the requirements of the topic, the stamping parts are analyzed, analysis of size precision of the parts obtained by the general precision of the mould can meet the precision requirements, from the shape, dimensions and mass production situation, the processing scheme selection. According to the prehensive analysis of the parts, mold design I in this design is inverted blanking and punching pound die, mainly introduces the blanking, punching die structure and the design of the blanking die, blanking and piercing principle. Hope to be able to use the specialized knowledge and skills learned, successfully pleted the graduation design. Keywords: Mold NC production blanking 小四號黑體 小四號宋體 德州科技職業學院畢業論文 目錄 III 目 錄 中文摘要 ??????????????????????????? Ⅰ 英文摘要 ??????????????????????????? Ⅱ 1 緒論 … ???????????????????????????? 1 2 沖裁工藝設計 ........................................................ 3 沖裁件的工藝性分析 .............................................. 3 沖壓方案的確定 .................................................. 3 3 沖裁排樣設計 ................................................... 5 排樣方案的確定 .................................................. 5 搭邊的選取 ...................................................... 5 送料步距、條料寬度及板料間距計算 ................................ 6 排樣圖 .......................................................... 7 沖裁力和壓力中心的計算 .......................................... 7 4 刃口尺寸計算 .................................................. 10 沖孔刃口尺寸計算 ............................................... 11 落料刃口尺寸計算 ............................................... 12 5 沖裁模主要零部件的結構與設計 ................................... 13 模具類型的選擇 ................................................. 13 定位方式的選擇 ................................................. 13 卸料裝置與推件裝置的選擇 ....................................... 14 工作零件的設計 ................................................. 16 6 壓力機的選取與校核 ............................................. 20 德州科技職業學院畢業論文 目錄 IV 壓力機的選擇 ................................................... 20 裝模高度的校核 ................................................. 20 7 模具總裝圖 .................................................... 21 8 模具材料的選用 ................................................ 22 9 模具的裝配與檢測 .............................................. 23 模具的裝配 ..................................................... 23 模具的檢測 ..................................................... 23 結論 ........................................................... 24 致謝 ........................................................... 25 參考文獻 ....................................................... 26 德州科技職業學院畢業論文 目錄 V 德州科技職業學院畢業論文 1 緒論 第 1 頁 共 32 頁 1 緒 論 在現在工業生產中，模具是重要的工藝裝備之一，它在鑄造，鍛造，沖壓，塑料，粉末冶金，陶瓷制品等生活生產行業中得到廣泛應用。其中以冷沖壓模、塑料模的技術要 求和復雜程度較高。由于產品的材料和工藝特性不同，生產用的設備也各異，模具種類繁多，但用的最為廣泛的大約有以下幾種：冷沖壓模、塑料成型模、鍛造模、精密鑄造模、粉末冶金模、橡膠成型模、玻璃成型模等。 關鍵詞： 模具 數控加工 生產 沖裁件 德州科技職業學院畢業論文 Abstract II Abstract The social progress and development, so that the original product has been unable to meet the demand for material, however, some modities must depend on the mold to prod