摘   要

    本論文應(yīng)用本專業(yè)所學(xué)課程的理論和生產(chǎn)實(shí)際知識(shí)進(jìn)行一次冷沖壓模具設(shè)計(jì)工作的實(shí)際訓(xùn)練從而培養(yǎng)和提高學(xué)生獨(dú)立工作能力，鞏固與擴(kuò)充了冷沖壓模具設(shè)計(jì)等課程所學(xué)的內(nèi)容，掌握冷沖壓模具設(shè)計(jì)的方法和步驟，掌握冷沖壓模具設(shè)計(jì)的基本的模具技能懂得了怎樣分析零件的工藝性，怎樣確定工藝方案，了解了模具的基本結(jié)構(gòu)，提高了計(jì)算能力，繪圖能力，熟悉了規(guī)范和標(biāo)準(zhǔn)，同時(shí)各科相關(guān)的課程都有了全面的復(fù)習(xí)，獨(dú)立思考的能力也有了提高。油封內(nèi)夾圈采用落料、拉伸、沖孔復(fù)合模，能較好地實(shí)現(xiàn)落料及落料件的修邊，模具設(shè)計(jì)制造簡(jiǎn)便易行。落料拉伸沖孔效果好，能極大地提高生產(chǎn)效率，但落料拉伸凹模設(shè)計(jì)較為重要，設(shè)計(jì)中應(yīng)充分考慮其落料拉伸模口形狀，否則易影響落料拉伸件的形狀。說(shuō)明書(shū)也分析了零件沖壓成形的工藝特點(diǎn)，介紹了油封外夾圈落料、沖孔、拉深翻邊復(fù)合模的工作原理和結(jié)構(gòu)設(shè)計(jì)過(guò)程，設(shè)計(jì)了一副包含落料、沖孔、拉深、翻邊的復(fù)合模，該模具設(shè)計(jì)合理，結(jié)構(gòu)緊湊,可靠性好，裝、拆、修磨方便,模具使用性能良好，應(yīng)用廣泛。可以在一個(gè)工步中完成夾圈毛坯的落料、成形、預(yù)沖孔、翻邊四道工序，生產(chǎn)率較舊的工藝方法有很大提高，經(jīng)濟(jì)效益顯著。通過(guò)沖裁件工藝分析等確定了模具類型。按照沖壓模具的一般步驟，計(jì)算并設(shè)計(jì)了本套模具的主要零部件，如：凸模、凹模、凸模固定板等。模架采用標(biāo)準(zhǔn)模架，選用了合適的沖壓設(shè)備。

關(guān)鍵詞：復(fù)合模，夾圈，落料，復(fù)合下料，沖孔，復(fù)合模，冷沖壓，繪圖能力

ABSTRACT

Thus the present paper applies this specialty to study the curriculum the theory and the production know-how carries on a time cold stamping mold design work the actual training to raise and to sharpen the student independent working ability, consolidated and expanded the content which curricula and so on cold stamping mold design studied, the method and the step which the grasping cold stamping mold designed, the basic mold skill which the grasping cold stamping mold designed had understood how analyzed the components the technology capability, how definite craft plan, had understood the mold basic structure, sharpened the computation ability, cartography ability, has been familiar with the standard and the standard, simultaneously various branches correlation curriculum all had the comprehensive review, independent thinking ability also had the enhancement. can enhance the production efficiency enormously, but falls the material to stretch the concave mold design to be important, in the design should consider fully it falls the material stretch mold mouth shape, otherwise easy to affect falls the material stretches the shape.  This project analyse the technology features of punch forming and introduce the operational principle and the structure design of the compound moulds of blank-and-cup piercing drawing and flanging. I designed a suit of compound moulds which contain blank-and-cup piercing drawing and flanging. This suit of compound moulds are reasonable designed and has compact structures , high reliability and widely used. This suit of compound moulds can complete blank-and-cup piercing drawing and flanging in a position, so the production efficiency and economic benefit are higher then the old technology features. Determine the type of the moulds by the technology anal yes of the part. Then calculate and design the parts according to the normal way, such as: male mould, female mould and mould holder.  

Keywords: compound moulds,blank-and-cup,falls material,strech mol

punch hole,superposeble die,cold stamping ,artography ability

目錄

前言 1

1概論 2

1.1引言 2

1.2.1沖壓模相關(guān)介紹 2

1.2.2沖模在現(xiàn)代工業(yè)生產(chǎn)中的地位 2

1.2.3我國(guó)沖壓模具市場(chǎng)情況 3

1.2.4 沖壓模具水平狀況 4

1.2.5我國(guó)沖模今后發(fā)展趨勢(shì) 6

2.1工件工藝性分析 6

2.1.1沖裁工藝性 6

2.1.2翻邊工藝性 7

2.1.3判斷能否一次性翻邊成形 7

2.2 工藝方案確定 8

2.2.1.油封內(nèi)夾圈工藝方案 9

2.2.2.油封外夾圈工藝方案 9

3排樣及計(jì)算材料利用率 10

3.1計(jì)算預(yù)沖孔大小 10

3.1.1內(nèi)夾圈預(yù)沖孔計(jì)算 10

3.3.2外夾圈預(yù)沖孔計(jì)算 11

3.2確定排樣方式 11

3.3計(jì)算材料利用率 12

3.3.1油封內(nèi)夾圈材料利用率計(jì)算 12

3.3.2油封外夾圈材料利用率計(jì)算 14

4沖裁力及壓力中心計(jì)算 15

4.1油封內(nèi)夾圈計(jì)算 15

4.1.1落料力計(jì)算 15

4.1.2翻邊力計(jì)算 16

4.1.3切邊力計(jì)算 16

4.1.4推件力計(jì)算 16

4.4.5總壓力計(jì)算 16

4.2油封外夾圈計(jì)算 16

4.2.1拉深力的計(jì)算 16

4.2.2壓邊力的計(jì)算 16

4.2.3拉深總工藝力計(jì)算 17

4.2.4翻邊力計(jì)算 17

4.2.5卸料力的計(jì)算 17

4.2.6沖裁力計(jì)算 17

4.2.7落料力計(jì)算 17

4.2.8總沖壓力的計(jì)算 17

4.3壓力中心的計(jì)算 18

5主要工作部分尺寸計(jì)算 18

5.1油封內(nèi)夾圈尺寸計(jì)算 18

5.1.1落料刃口尺寸計(jì)算 18

5.1.2沖孔切邊刃口尺寸計(jì)算 19

5.1.3翻邊工作刃口尺寸計(jì)算 19

5.2油封內(nèi)夾圈尺寸計(jì)算 20

5.2.1落料刃口尺寸計(jì)算 20

5.2.2沖孔切邊刃口尺寸計(jì)算 21

5.2.3翻邊工作刃口尺寸計(jì)算 21

6凸模、凹模及凸凹模的結(jié)構(gòu)設(shè)計(jì)及校核 22

6.1油封內(nèi)夾圈模具外形尺寸 22

6.1.1落料凹模結(jié)構(gòu)設(shè)計(jì) 22

6.1.2確定落料、翻邊凸凹模外形尺寸 24

6.1.3沖孔翻邊凸模外形設(shè)計(jì) 25

6.2油封內(nèi)夾圈模具外形尺寸 25

6.2.1沖孔凸模外形尺寸 25

6.2.2落料凹模形狀設(shè)計(jì) 26

6.2.3拉深翻邊凸凹模外形設(shè)計(jì) 26

7主要零部件設(shè)計(jì) 27

7.1模柄的設(shè)計(jì) 27

7.1.1油封內(nèi)夾圈模柄的設(shè)計(jì) 27

7.1.2油封外夾圈模柄的設(shè)計(jì) 28

7.2固定板和墊板的設(shè)計(jì) 28

7.2.1凸凹模固定板的設(shè)計(jì) 28

7.2.2墊板的設(shè)計(jì) 29

7.3定位零件的設(shè)計(jì) 30

7.3.1固定擋料銷的設(shè)計(jì) 30

7.3.2圓柱銷的設(shè)計(jì) 30

7.4出件機(jī)構(gòu)的設(shè)計(jì) 31

7.4.1推出件機(jī)構(gòu)的設(shè)計(jì) 31

7.4.2下出件機(jī)構(gòu)的設(shè)計(jì) 33

8模架的選擇 35

8.1模架的選擇 36

8.2模具的閉合高度計(jì)算 37

8.2.1模具閉合高度計(jì)算的意義 37

8.2.2計(jì)算模具的閉合高度 37

9選擇沖壓設(shè)備 37

10模具總裝圖及裝配工藝性……………………………………………………  39

   10.1模具總配圖……………………………………………………………… 39

   10.2裝配工藝性……………………………………………………………… 41

       10.2.1工作零件的固定裝配 41

10.2.2其他零件的裝配 42

參考文獻(xiàn) 43

總結(jié) 44

致謝 45