本套畢業(yè)設(shè)計主要包括6張cad二維圖、PRO/E三維圖、開題報告、設(shè)計說明書。

目 錄

引 言
中文摘要 ┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉1
英文摘要 ┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉2
第1章 緒 論 ┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉3
1.1 我國塑料模具工業(yè)現(xiàn)狀 ┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉3
1.2 市場預(yù)測 ┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉3
1.3 今后的主要發(fā)展方向 ┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉4
第2章 塑件及其材料的分析和成型設(shè)備的選用 ┉┉┉┉┉┉┉┉┉┉┉┉5
2.1 塑件分析┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉5
2.2 塑件材料的分析 ┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉5
2.2.1 聚碳酸酯的化學(xué)和物理特性 ┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉5
2.2.2 聚碳酸酯的成型特性 ┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉6
2.2.3 聚碳酸酯的成型工藝參數(shù) ┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉6
2.3 成型設(shè)備的選用 ┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉8
2.3.1 確定成型方法 ┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉8
2.3.2 明確塑件批量 ┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉8
2.3.3 塑件的體積和質(zhì)量 ┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉8
2.3.4 注射機的選用及其參數(shù) ┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉8
第3章 模具方案設(shè)計 ┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉10
3.1 設(shè)計方案的選擇 ┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉10
3.2 分型面的選擇 ┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉10
3.3 凹、凸模零件工作┉尺寸的設(shè)計 ┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉11
3.3.1 Pro/E 模具組件設(shè)計的一般步驟 ┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉11
3.3.2 凹、凸模零件工作尺寸的計算公式 ┉┉┉┉┉┉┉┉┉┉┉┉┉┉12
3.3.3 計算修正系數(shù) ┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉12
3.4 型腔壁厚、底板厚度的確定 ┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉13
3.4.1 凹模型腔側(cè)壁厚度計算 ┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉13
3.4.2 承板厚度的確定 ┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉13
3.5 型芯以及推出抽芯機構(gòu)的設(shè)計 ┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉14
3.5.1 型芯結(jié)構(gòu)設(shè)計 ┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉14
3.5.2 推出抽芯機構(gòu)的設(shè)計 ┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉15
3.6 排氣系統(tǒng) ┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉15
3.7 模具熱交換系統(tǒng)設(shè)計 ┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉16
3.7.1 模具加熱系統(tǒng)的設(shè)計 ┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉16
3.7.2 冷卻系統(tǒng)的確定 ┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉17
第4章 結(jié)構(gòu)零件的選擇設(shè)計 ┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉21
4.1 模架的選擇設(shè)計 ┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉21
4.2 澆注系統(tǒng)的設(shè)計 ┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉21
4.2.1 澆口套的選擇 ┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉21
4.2.2 冷料井的設(shè)計 ┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉22
4.2.3 分流道的設(shè)計 ┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉22
4.2.4 澆口的設(shè)計 ┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉23
4.3 導(dǎo)向與定位機構(gòu)設(shè)計 ┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉24
4.3.1 導(dǎo)柱的選擇 ┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉24
4.3.2 導(dǎo)套的選擇 ┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉25
4.3.3 定位環(huán)的選擇設(shè)計 ┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉26
4.3.4 其他定位機構(gòu)的設(shè)計 ┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉26
4.4 脫模機構(gòu)的選擇設(shè)計 ┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉26
4.4.1 推出機構(gòu)的選擇設(shè)計 ┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉26
4.4.2 推桿復(fù)位機構(gòu) ┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉27
4.4.3 拉料桿的選擇設(shè)計 ┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉27
第5章 相關(guān)參數(shù)的校核 ┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉28
5.1 注射機參數(shù)的校核 ┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉28
5.1.1 最大注射量的校核 ┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉28
5.1.2 注射壓力的校核 ┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉28
5.1.3 鎖模力的校核 ┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉28
5.2 注射機安裝尺寸的校核 ┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉29
5.2.1 可安裝的模具高度校核 ┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉29
5.2.2 模具定位圈與注射機定孔的配合 ┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉29
5.2.3 噴嘴尺寸 ┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉29
5.2.4 模具外形尺寸與注射機的拉桿間距校核 ┉┉┉┉┉┉┉┉┉┉┉┉29
5.3 抽芯距與抽拔力的校核 ┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉30.
5.3.1 抽芯距的校核 ┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉30
5.3.2 抽拔力的校核 ┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉30
5.4 開模行程的校核 ┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉31
結(jié) 論 ┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉32
參考文獻 ┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉33
致 謝 ┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉34


摘  要

隨著塑料工業(yè)的發(fā)展，社會對塑料制品的需求愈來愈大，若要生產(chǎn)出較好的塑料制品，必須有先進實用的塑料模具。近幾年來，汽車、摩托車行業(yè)模具需求將占國內(nèi)模具市場的一半左右汽車、摩托車行業(yè)的發(fā)展將會大大推動模具工業(yè)的高速發(fā)展，特別是汽車覆蓋件模具、塑料模具和壓鑄模具的發(fā)展。針對這一行業(yè)發(fā)展趨勢，模具行業(yè)前景愈來愈廣闊，因此畢業(yè)設(shè)計指導(dǎo)老師為我指定了畢業(yè)設(shè)計題目——轎車前照燈燈罩的模具設(shè)計。
該篇畢業(yè)設(shè)計論文針對具體的零件進行模具設(shè)計，主要涉及到對塑件材料成型特性的分析、塑件的分析和模具方案的設(shè)計。其中模具方案設(shè)計又包括注塑機的選型、確定模具類型、型腔布置、確定分型面、設(shè)計澆注系統(tǒng)、選擇推出方式、側(cè)向分型和抽芯機構(gòu)設(shè)計、熱交換系統(tǒng)選擇、結(jié)構(gòu)零件的選用、成型零件的結(jié)構(gòu)設(shè)計和計算、各零件的校核以及注塑機參數(shù)的校核。

關(guān)鍵詞：  聚碳酸酯    側(cè)澆口    側(cè)型芯滑塊    斜滑塊      轎車燈罩   

Abstract

Along with the plastic industry development, the society is increasing severely to the plastic product demand, if produces the better plastic product, must have the advanced practical plastic mold. In the last few years, the automobile, the motorcycle profession mold demand will occupy the domestic mold market a half past one. About automobile, the motorcycle profession development can greatly impel the mold industry development have a highly speed, especially automobile cover mold, plastic mold and compression casting mold. In view of this profession development tendency, the mold profession prospect is increasingly broad, therefore the graduation project instructed teacher to assign in front of the graduation project topic- passenger vehicle for me the illuminator chimney mold design.
 This graduation project paper carries on the mold design of prescribed parts, mainly involves to models material to take shape the characteristic analysis, models analysis and the mold plan design. Mold plan design includes the casting machine shaping, the determination mold type, the cavity arrangement, the true parting line, the design pours the system, the choice promotes the way, lateral dividing and pulls out the core organization design, the heat-exchange system choice, the constructional detail selects, takes shape the components structural design and the computation, various components examination as well as the casting machine parameter examination.
Key word: polycarbonate    edge gate    side core-slide    angled-lift splits      Car louver