電機外殼下蓋沖壓模具設(shè)計

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。本文針對端蓋的沖裁工藝性和拉深工藝性，分析比較了成形過程的三種不同沖壓工藝（單工序、復合工序和連續(xù)工序），確定用一幅復合模完成落料、拉深工序過程。介紹了端蓋冷沖壓成形過程，經(jīng)過對端蓋的批量生產(chǎn)、零件質(zhì)量、零件結(jié)構(gòu)以及使用要求的分析、研究，按照不降低使用性能為前提，將其確定為沖壓件，用沖壓方法完成零件的加工，且簡要分析了坯料形狀、尺寸，排樣、裁板方案，拉深次數(shù)，沖壓工序性質(zhì)、數(shù)目和順序的確定。進行了工藝力、壓力中心、模具工作部分尺寸及公差的計算，并設(shè)計出模具。還具體分析了模具的主要零部件（如凸凹模、卸料裝置、拉深凸模、墊板、凸模固定板等）的設(shè)計與制造，沖壓設(shè)備的選用，凸凹模間隙調(diào)整和編制一個重要零件的加工工藝過程。列出了模具所需零件的詳細清單，并給出了合理的裝配圖。通過充分利用現(xiàn)代模具制造技術(shù)對傳統(tǒng)機械零件進行結(jié)構(gòu)改進、優(yōu)化設(shè)計、優(yōu)化工藝方法能大幅度提高生產(chǎn)效率，這種方法對類似產(chǎn)品具有一定的借鑒作用。

關(guān)鍵詞：端蓋；模具設(shè)計；復合模；落料拉深











Stamping Process and Die Design of the Motor
down shell

ABSTRACT
With China's industries continue to develop and die industry is also becoming increasingly important. Based on the Cover of the stamping process and the deep drawing process, Comparative analysis of the process of forming three different stamping process (single processes, complex processes and continuous processes) confirm completion of a composite model blanking and drawing processes. On the cover of the cold stamping process, right after the Cover of the mass production, quality components, and the use of structural components of the analysis, research, in line with lower performance prerequisite to the identification of stampings, Stamping method used to complete the processing components, and a brief analysis of the blank shape, size, layout, the Conference Board, the number of Drawing, stamping processes in nature, number and sequence determination. For the process, the center of pressure, the die size and the tolerance of the calculation, design mold. Also analyzes the mold of the main components (such as punch and die and dump devices, drawing punch, slates, Punch plate, etc.) design and manufacturing, stamping equipment selection, punch-gap adjustment and establishment of a vital parts machining process. Die requirements set out a detailed list of parts, and gives a reasonable assembly. By fully utilizing modern manufacturing technology to mold traditional mechanical parts for structural improvements, design optimization, Process optimization methods can greatly enhance production efficiency, the method of similar products have some reference.

Keywords: Cover; Mold design; Composite molding; Blanking drawing
目錄
1.緒論 1
1.1我國沖壓技術(shù)現(xiàn)狀 1
1.2沖壓技術(shù)發(fā)展方向 2
1.3沖壓的定義和特點 2
1.4沖模與沖壓件的關(guān)系 2
1.5選題的目的與意義 3
2.工藝分析 4
2.1確定工藝路線與方案 5
2.1.1拉深工藝分析 5
2.1.2拉深成形工藝的確定 6
2.1.2工藝路線方案的確立 15
2.2排樣 15
2.3確定排樣圖和裁板方案 16
3.模具設(shè)計計算 17
3.1有凸緣圓筒形工件的拉深工序尺寸計算 17
3.1.1判斷拉深次數(shù) 17
3.1.2判斷能否一次拉成 18
3.1.3首次拉深 19
3.1.4確定拉深次數(shù) 21
3.2計算壓邊力，拉深力 22
3.2.1采用壓邊圈的條件 22
3.2.2拉深壓邊力的計算 23
3.2.3拉深力的計算 23
3.2.4壓力中心 25
3.3模具工作部分的尺寸計算 25
3.3.1拉深模的間隙選擇與計算 25
3.3.2凸、凹模工作部分的尺寸和公差 26
3.4本章小結(jié) 28
4.模具的結(jié)構(gòu)與零件 29
4.1模具結(jié)構(gòu)組成 29
4.1.1模具的工作原理 29
4.1.2輔助裝置 30
4.1.3導向零件 30
4.1.4模架 30
4.1.5導柱導套 31
4.1.6橡膠 32
4.1.7壓邊圈 33
4.1.8推件塊 33
4.1.9拉深凸模 34
4.1.10凸凹模 35
4.1.11模柄 35
4.2沖壓設(shè)備 36
總結(jié) 38
參考文獻 39
致謝 41
附錄A沖壓工藝卡 42
附錄B 零件圖 45
附錄C 圖紙清單 46