汽車備輪架加固板沖壓工藝及模具設(shè)計(jì)

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摘 要
闡述了復(fù)合模的結(jié)構(gòu)設(shè)計(jì)工程及其工作過程，通過系統(tǒng)的工藝分析，采用沖孔、彎曲 、落料等工序進(jìn)行加工。通過計(jì)算工藝力以確定模具壓力中心，并選擇壓力機(jī)的型號。落料凹模通過凹模固定板與下模座連接來固定。模具采用下出料方式和彈性卸料卸料裝置。本模具結(jié)構(gòu)較簡單，性能可靠，工作平穩(wěn)，提高了生產(chǎn)效率，降低勞動強(qiáng)度和生產(chǎn)成本。

關(guān)鍵字：復(fù)合模，沖壓工藝，模具設(shè)計(jì)，沖孔，落料

ABSTRACT

The passage expounds on the structure designing project and work process of the compound die, and uses some working procedures, such as punching, bending, blanking and so on, to process through the technologic analysis of the system. Through calculating the process to determine the center of the die’s pressure, and select the model of the presses. Blanking die is fixed by connecting the die holder with the die set. The die adopts the way of lower ejection and elasticity discharge devices. Its structure is relatively simple, the performance is reliable and the work is steady. It has improved the producing efficiency and reduced the intensity of labor and cost of production.

Keywords: Compound die; Stamping process; Mold designing; Punch; Blanking



目錄
第一章 緒論……………………………………………1
1.1 中國沖壓模具現(xiàn)狀…………………………………………....1
1.2 沖壓模具的發(fā)展與展望………………………………………2
1.3 中國沖壓模具發(fā)展趨勢………………………………………3

第二章 沖孔落料復(fù)合模設(shè)計(jì)與計(jì)算…………………4
2.1 簡述……………………………………………………………4
2.2 設(shè)計(jì)任務(wù)………………………………………………………4
2.3 沖壓件的工藝分析……………………………………………6
2.4 確定工藝方案…………………………………………………6
2.5 沖裁工藝性分析及間隙的選擇………………………………10
2.6 沖裁力、卸料力、頂件力的計(jì)算及壓力機(jī)的確定和選擇…12
2.7 模架的選擇……………………………………………………16
2.8 凹凸模的設(shè)計(jì)…………………………………………………21
2.9 模具的動作過程………………………………………………25
第三章 彎曲模設(shè)計(jì)……………………………………27
3.1 簡述……………………………………………………………27
3.2 彎曲件工藝分析………………………………………………28
3.3 模具工作部分結(jié)構(gòu)參數(shù)的設(shè)計(jì)………………………………29
3.4 彎曲半徑的選擇………………………………………………32
3.5 壓力機(jī)的選擇…………………………………………………32
3.6 凸模的設(shè)計(jì)……………………………………………………34
3.7 凹模的設(shè)計(jì)……………………………………………………35
3.8 定位裝置………………………………………………………37
3.9 卸料裝置和推件裝置…………………………………………37
3.10 模架的選擇…………………………………………………..37
3.11 壓彎零件材料及其熱處理硬度……………………………..38
3.12 彎曲模具裝配圖……………………………………………..38
結(jié)論……………………………………………………..40
參考文獻(xiàn)………………………………………………..41
致謝……………………………………………………..42