調(diào)刻機進氣門外殼落料正反垃深復(fù)合模設(shè)計
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摘 要
隨著中國工業(yè)不斷地發(fā)展，模具行業(yè)也顯得越來越重要。首先對加工零件進行了加工工藝和結(jié)構(gòu)工藝的分析。通過計算毛坯尺寸和拉深系數(shù)提出了四種方案，最后確定采用落料、正反拉深復(fù)合模。對模具的排樣做出了合理的布置，使材料利用率達到較高的水平。計算了沖壓過程中所需要的各種沖壓工藝力，包括落料力、卸料力、壓邊力、拉深力、頂料力等，并對壓力機進行了合理的噸位初選。復(fù)合模在結(jié)構(gòu)上采用了正裝的形式，計算出了落料、正拉深和反拉深工作部分的尺寸。對模具的閉合高度進行了合理的確定，還設(shè)計出模具的主要零件落料凹模、凸凹模、反拉深凸模、反拉深凹模、凹模固定板等。列出了模具所需零件的詳細清單，并給出了合理的裝配圖。由于拉深的深度較大，對壓力機的電機也進行了功率校核并提出了潤滑的附加工序，能使拉深順利完成。最后對模具的一個主要零件導(dǎo)套進行了簡單的加工工藝路線的制定。本設(shè)計對于采用單動壓力機進行正反拉深具有一定的參考作用。
關(guān)鍵詞 畢業(yè)論文；模具設(shè)計；復(fù)合模；正反拉深
Develops unceasingly along with the Chinese industry, the mold profession also appears more and more importantly. First has carried on the processing craft and the structure craft analysis to the processing components. Proposed through the computation semifinished materials size and the drawing coefficient four kind of plans, finally determined uses falls the material, the pro and con drawing superposable die. Has made the reasonable arrangement to the mold platoon type, enables the material use factor to achieve the high level. Has calculated each ramming craft strength which in the ramming process needs, including falls nearby the material strength, the ex-denning strength, the pressure the strength, the drawing strength, the top material strength and so on, and has carried on the reasonable tonnage primary election to the press. The superposable die has used the true thing form in the structure, calculated fell the material, the drawing and the counter- drawing effective range size. Closed has carried on the reasonable determination highly to the mold, but also designs the mold the major parts to fall the material concave mold, the convex-concave mold, the counter- drawing raised mold, the counter- drawing concave mold, the concave mold dead plate and so on. Listed the mold to need the components the detailed detailed list, and has produced the reasonable assembly drawing. Because the drawing depth is big, also carried on the power to the press electrical machinery to examine and to propose the lubrication attachment working procedure, could cause the drawing smoothly to complete. Finally led the wrap to mold major parts to carry on the simple processing craft route formulation. This design regarding uses the single acting press to carry on the pro and con drawing to have the certain reference function.
Key words graduation thesis; mold design; superposable die; pro and con drawing
目錄
1 緒論 1
2 分析零件的工藝性 2
3 確定工藝方案 4
3.1 計算毛坯尺寸 4
3.2.1 正拉深 6
3.2.2 反拉深 7
3.3 確定工藝方案 7
4 主要工藝參數(shù)的計算 9
4.1 確定排樣、裁板方案 9
4.2 確定各中間工序尺寸 10
4.3 計算工藝力、初選設(shè)備 11
4.3.1 落料、正拉深過程 11
4.3.2 反拉深過程 13
4.3.3 拉深功的計算 14
4.3.4 初選壓力機 14
5 模具的結(jié)構(gòu)設(shè)計 16
5.1 模具結(jié)構(gòu)形式的選擇 16
5.2 模具工作部分尺寸計算 16
5.2.1 落料 16
5.2.2 正拉深 18
5.2.3 反拉深 18
6 選用模架、確定閉合高度 20
6.1 模架的選用 20
6.2 模具的閉合高度 20
6.3 壓力中心 21
7 模具的主要零部件結(jié)構(gòu)設(shè)計 22
7.1 落料凹模 22
7.2 凸凹模 23
7.3 反拉深凸模 24
7.4 反拉深凹模 25
7.6 上墊板 28
7.7 凹模固定板 29
8 模具的整體安裝 30
8.1 模具的總裝配 30
8.2 模具零件 31
9 選定沖壓設(shè)備 33
9.1 壓力機的規(guī)格 33
9.2 電動機功率的校核 33
10 附加工序 35
11 主要零件的加工 36
12 總結(jié) 38
13 附錄 39
13.1參考文獻 39
致 謝 40 ...
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