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11 加工方案確定 .............................................. 13 沖壓工藝方案確定 ................................................ 14 3 模具結構設計及沖壓工藝計算 ........................................... 14 沖裁模設計與計算 ................................................ 14 排樣設計 .................................................. 14 模具刃口尺寸計算 .......................................... 15 模具整體結構設計 .......................................... 18 彈性元件選擇與計算 ........................................ 24 沖裁力及沖裁壓力中心計算 .................................. 25 沖壓設備選擇 .............................................. 26 成形模設計與計算 ................................................ 26 成形工藝計算 .............................................. 26 模具總體結構設計 .......................................... 30 成形力計算 ................................................ 33 彈性元件選擇與計算 ........................................ 34 沖壓成形設備選擇 .......................................... 34 4 模具總體結構說明 ..................................................... 35 模具總體結構圖 .................................................. 35 三維造型圖 ................................................ 35 二維造型圖 ................................................ 35 模具工作原 理分析說明 ............................................ 36 落料沖孔倒裝復合模 ........................................ 36 復合彎曲模 ................................................ 37 3 5 模具零件詳細設計計算 ................................................. 37 工藝零件詳細設計計算 ............................................ 37 沖裁模工藝零件詳細設計計算 ................................ 37 彎曲模工藝零件詳細設計計算 ................................ 42 結構零件詳細設計計算 ............................................ 45 沖裁模結構零件詳細設計計算 ................................ 45 彎曲模結構零件詳細設計計算 ................................ 51 6 模具關鍵零部件加工工藝性分析 ......................................... 52 凸模加工工藝分析 ................................................ 52 凹模加工工藝分析 ................................................ 53 凸凹模加工工藝分析 .............................................. 53 7 其他需要說明的問題 ................................................... 54 8 小結 ................................................................. 54 9 參考文獻 ............................................................. 54 10 致謝 ............................................................. 55 4 緒 論 我國考古發(fā)現(xiàn),早在 2020 多年前,我國已有沖壓模具被用于制造銅器,而如今,我們生活工作中,所用到的產(chǎn)品,幾乎都離不開模具,所以說,模具是制造業(yè)之母,是永不衰退的行業(yè)。 Blanking。 and in the design we can obtain a prehension and get a deeper understanding of the expertise knowledge. In particular when encountering the difficulties as for the design, you can make up for something that you are not familier with in order to achieve the objective of the design. As the mold has itself features for design, by the design methods, such as viewing corresponding references and independent innovation we can carry out design calculations. This article has prehensively introduced the process of sheet metal brackets,and the blanking and bending properties of the structural design of mold design and parts, including the size of the calculation and structural designu use two die to blank and bend blanking,I use flipposite modulus to improve the production the bending use the plex shape to avoid the use of a workpiece forming scratches easily shortings. In the design of mold, the bination of modern design methods, using threedimensional modeling software to design the overall structure a better understanding of the mold. Key word: Die of design。 薄板托架 。在設計模具時,結合現(xiàn)代 設計方法,用三維造型軟件先進行三維設計,對整體的模具構造進一步了解。沖裁時,采用倒裝復合模,提高了生產(chǎn)效率。本設計完整的介紹了薄板托架的工藝特性和沖裁和彎曲模具的結構設計及零部件設計,包括尺寸計算和結構設計。,是對四年所學的綜合利用,用書本的知識來做一套模具提高自己的實踐能力的同時,在設計時對所 學的知識能有個全面加深,從而對自己的專業(yè)知識有更深的了解,尤其是在設計時遇到困難時,可以針對自己的不足,有針對性去了解自己不熟的東西,從而達到設計的目的。由于模具的本身設計特點,在設計的方法上采用借鑒和自主創(chuàng)新來進行設計和計算。本套模具采用兩套模具分別進行沖裁和彎曲。彎曲時,采用復合成形,一次加工成形,同時避免了采用一次成形時工件容易被擦傷的缺點。 關鍵詞 : 模具設計 。 沖裁;彎曲;三維造型 1 Abstract The design, is a utilization of our four ye