“閥支架”沖壓工藝及模具設計（本科畢業(yè)論文設計）

摘    要

冷沖壓是一種先進的金屬加工方法，它是建立在金屬塑性變形的基礎(chǔ)上，利用模具和沖壓設備對板料金屬進行壓力加工，以獲得滿足一定形狀和尺寸要求的零件。沖壓加工方法與其它方法相比，具有生產(chǎn)效率高、加工成本低、材料利用率高、產(chǎn)品尺寸精度穩(wěn)定、操作簡單、易實現(xiàn)機械化與自動化等優(yōu)點，特別適用于產(chǎn)品的大批量生產(chǎn)。隨著國民經(jīng)濟的快速發(fā)展，沖壓加工在制造業(yè)中的應用越來越廣泛，沖壓工藝和沖壓模具設計與制造技術(shù)也得以快速地發(fā)展。[1]
本設計重點對“閥支架”進行了沖壓可行性分析和相應的工藝計算，并根據(jù)零件的特點經(jīng)過綜合分析和比較得到最佳的冷沖壓工藝方案，并在此基礎(chǔ)上詳細地講述了拉深脹形復合模的設計過程，并用三維軟件UG對主要工作部分零件進行建模。此外，還講述了沖孔模具的設計過程并簡單介紹了模具制造工藝。

關(guān)鍵詞： 閥支架，沖壓工藝，沖壓模具，拉深脹形復合模

ABSTRACT

Cold stamping is a kind of advanced metal processing method , it is based on the plastic deformation of metals , by using stamping dies and stamping equipments , the sheet metal is deformed and so an element of certain shape and dimension is obtained . Compared with other processing methods , stamping has its own advantages , eg: the production efficiency is high , the cost is low , the overall material utilization factor is high , the product size is stabilized , the operation is simple and the realization of mechanization and automation is easy . So stamping is very suitable for production of large quantity . Along with the fast development of national economy , the application of stamping in manufacturing industry is more and more extensive , and the stamping technology and die design and production technology also have fast development .
The text bellow has narrated the stamping feasibility and the technology calculation for “kickstand of valve” , and according to the characteristics of the element , we have got the best stamping scheme by intergration analysis and comparison . Then on the foundation of this scheme , we have narrated in detail the design course of the matrix , and designed the main working parts by three-dimensional solid modeling of UG . Besides , we have also narrated in detail the workmanship of the matrix .

Key words：Kickstand of valve , Stamping technology ，Stamping die ,  Compound die of  bulging and drawing

目   錄

中文摘要 Ⅰ
ABSTRACT Ⅱ
1緒論 …………………………………………………………………...1
1.1 前言…………………………………………………………………………………………1
1.2 板料成形工藝與模具設計及其研究狀況…………………………………………………2
1.2.1 基于經(jīng)驗的設計………………………………………………………………………2
1.2.2 基于CAD的設計………………………………………………………………………2
1.2.3 基于智能的設計………………………………………………………………………3
1.2.4 基于有限元的設計……………………………………………………………………3
1.2.5 基于快速成形的設計…………………………………………………………………4
2 閥支架沖壓可行性分析……………………………………………….5
3 閥支架沖壓工藝設計………………………………………………….7 
3.1 毛坯尺寸的展開計算……………………………………………………………………...7
3.2工序組合和方案分析………………………………………………………………………7
3.3各工序沖壓工藝計算………………………………………………………………………7
3.3.1拉深脹形工藝計算…………………………………………………………………….7
3.3.2沖孔工藝計算………………………………………………………………………….8
3.3.3翻邊工藝計算………………………………………………………………………….9
3.3.4切邊工藝計算………………………………………………………………………….9
3.3.5成形翻邊工藝計算…………………………………………………………………….9
3.4沖壓工藝卡的制定………………………………………………………………………...10
4.閥支架模具設計………………………………………………………..12
4.1拉深脹形復合模模具結(jié)構(gòu)設計……………………………………………………………12
4.1.1模架……………………………………………………………………………………..12
4.1.2導柱和導套……………………………………………………………………………..12
4.1.3模柄……………………………………………………………………………………..14
4.1.4出件方式…………………………………………………………………………………14
4.1.5模具裝配圖………………………………………………………………………………15
4.1.6模具工作過程……………………………………………………………………………15
4.1.7裝模高度的校核…………………………………………………………………………15
4.2復合模主要模具零件設計……………………………………………………………………16
4.3沖孔模模具結(jié)構(gòu)設計…………………………………………………………………………19
4.3.1模具裝配圖………………………………………………………………………………20
4.3.2模具工作過程……………………………………………………………………………20
4.4沖孔模主要模具零件設計……………………………………………………………………20
5.模具零件的三維建?！?..23
6.模具制造工藝…………………………………………………………...25
6.1模具制造的主要特點……………………………………………………………………….25
6.2模具制造的基本要求………………………………………………………………………25.
6.3 模具制造工藝流程…………………………………………………………………………26
結(jié)束語……………………………………………………………………29
答謝詞……………………………………………………………………30
參考文獻 …………………………………………………………. …….31