外屏蔽罩拉深模設(shè)計(jì)【U形型件沖壓模具優(yōu)秀課程畢業(yè)設(shè)計(jì)含proe三維26張CAD圖紙】-cymj13
外屏蔽罩拉深模設(shè)計(jì)【U形型件沖壓模具含26張圖紙及proe三維】
摘 要
沖壓是利用安裝在沖壓設(shè)備（主要是壓力機(jī)）上的模具對材料施加壓力，使其產(chǎn)生分離或塑性變形，從而獲得所需零件的一種壓力加工方法。沖壓通常是在常溫下對材料進(jìn)行冷變形加工，且主要采用板料來加工成所需零件，所以也叫冷沖壓或板料沖壓。沖壓所使用的模具稱為沖壓模具，簡稱沖模。沖模是將材料（金屬或非金屬）批量加工成所需沖件的專用工具。沖模在沖壓中至關(guān)重要，沒有符合要求的沖模，批量沖壓生產(chǎn)就難以進(jìn)行；沒有先進(jìn)的沖模，先進(jìn)的沖壓工藝就難以實(shí)現(xiàn)。 拉深是利用模具使平板毛坯變成為開口的空心零件的沖壓方法，用拉深工藝可以制成筒形、階梯形、錐形、拋物面形、盒形和其他不規(guī)則形狀的薄壁零件，其中又以筒形件簡單和多見，而有凸緣筒形件又分為寬凸緣和窄凸緣件。 在拉深工藝設(shè)計(jì)時(shí)，必須知道沖壓件能否一次拉出，這就引出了拉深系數(shù)的概念。拉伸系數(shù)決定于每次拉深時(shí)允許的極限變形程度。在多次拉深中，對于寬凸緣拉深件，則應(yīng)在第一次拉深時(shí)，就拉成；零件所要求的凸緣直徑，而在以后各次拉深中，凸緣直徑保持不變。為了保證以后拉深時(shí)凸緣不變形，寬凸緣拉深件首次拉入凹模的材料應(yīng)比零件最后拉深部分實(shí)際所需材料多3%~5%,這些多余材料在以后各次拉深中，逐漸將減少部分材料擠回到凸緣部分，使凸緣增厚，從而避免拉裂。
關(guān)鍵詞：拉深 拉深變形 拉深力
ABSTRACT
Stamping is a method of applying pressure to a material by means of a mold mounted on a stamping device (mainly a press) to cause separation or plastic deformation to obtain a desired pressure machining method for the desired part. Stamping is usually at room temperature for cold deformation of the material processing, and the main use of sheet metal to be processed into the required parts, it is also called cold stamping or sheet metal stamping. Stamping used by the mold called stamping die, referred to as die. Dies are special tools for batching materials (metal or nonmetal) into the required pieces. Punching in the stamping is essential, did not meet the requirements of the die, batch stamping production is difficult to carry out; no advanced die, advanced stamping process is difficult to achieve. Deep drawing is the use of mold to make the flat into a hollow blank parts of the stamping method, with the drawing process can be made of cylindrical, stepped, tapered, parabolic, box-shaped and other irregular shape of the thin-walled parts, Which in turn cylindrical and simple and more common, and a cylindrical tube is divided into wide flange and narrow flange pieces. In the drawing process design, we must know whether the stamping out a pull, which leads to the concept of drawing coefficient. The tensile modulus is determined by the degree of ultimate deformation allowed at each drawing. In the deep drawing, for the wide flange drawing parts, it should be in the first drawing, it pulls; parts required flange diameter, and in the subsequent drawing, the flange diameter to maintain constant. In order to ensure that the flange after the deformation is not deformed, wide flange drawing parts for the first time into the die material should be more than the final part of the material required to extract the actual material 3% to 5%, these excess materials in the future Deep, will gradually reduce the part of the material squeezed back to the flange part, so that the flange thickening, so as to avoid cracking.
Key words: drawing die drawing deformation drawing force
目 錄 1
1.1外屏蔽罩拉深膜工藝性分析1
1.1.1拉深件拉深變形特點(diǎn)1
1.1.2拉深件要求1
1.1.3拉深件工藝分析2
1.2材料的工藝性能3
第二章 拉深工序計(jì)算4
2.1選定切邊余量δ4
2.2.計(jì)算毛坯直徑D4
2.3計(jì)算工件拉深次數(shù)及各次拉深尺寸4
第三章 工序壓力計(jì)算和壓力機(jī)的選擇5
3.2壓力機(jī)的選擇原則5
3.3排樣設(shè)計(jì)5
3.4第二次拉深壓力機(jī)的選擇5
3.5第三次拉深壓力機(jī)的選擇
3.6第四次拉深壓力機(jī)的選擇7
第四章 模具工作部分尺寸和公差計(jì)算9
4.1拉深成型模具設(shè)計(jì)9
4.2拉深模工作零件的結(jié)構(gòu)和尺寸10
4.3凸模與凹模之間間隙c10
4.4凸模與凹模工作尺寸與公差11
第五章 零件切削加工工藝規(guī)程11
5.1工藝規(guī)程設(shè)計(jì)11
5.2確定毛坯的制造方式11
5.3基準(zhǔn)的選擇11
5.3.1粗基準(zhǔn)的選擇11
5.3.2精基準(zhǔn)的選擇12
5.4制定工藝路線13
5.5機(jī)械加工余量、工序尺寸及毛坯尺寸的確定14
5.6選擇機(jī)床及刀具、量具14
第六章 工作零件結(jié)構(gòu)尺寸和公差的確定20
6.1落料拉深模選用原則20
6.2模具零件尺寸確定21
6.3模架選擇22
6.4模柄選擇22
6.5其他零件尺寸，材料22
第七章 拉深裝配圖的校核23
結(jié)論24
致謝25
參考文獻(xiàn) 26
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3D.stp
proe三維
上墊板.dwg
上墊板2.dwg
下墊板.dwg
下墊板2.dwg
下墊板3.dwg
凸模.dwg
凸模2.dwg
凸模3.dwg
凸模4.dwg
凸模板.dwg
凸模板2.dwg
凸模板3.dwg
凹模.dwg
凹模2.dwg
凹模3.dwg
凹模固定板.dwg
凹模板.dwg
凹模板2.dwg
凹模板3.dwg
壓邊圈.dwg
壓邊圈2.dwg
壓邊圈3.dwg
所有零件圖總匯.dwg
推板.dwg
推板2.dwg
推板3.dwg
文件清單.txt
裝配圖.dwg
說明書正文.docx
調(diào)研報(bào)告.doc
