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...................................................................... 27 初選注塑機(jī) ...................................................................................................... 27 選擇模架 .......................................................................................................... 28 注射機(jī)性能參數(shù)校核 ........................................................................................ 29 注射量、鎖模力、注射壓力、模具厚度的校核 ....................................... 29 開模行程的校核 ..................................................................................... 29 模具在注射機(jī)上的安裝 .......................................................................... 29 第八章 推出結(jié)構(gòu)的設(shè)計 ................................................................................................. 30 合模導(dǎo)向機(jī)構(gòu)的設(shè)計 ........................................................................................ 30 推出機(jī)構(gòu)的組成及各部分作 .............................................................................. 30 推出機(jī)構(gòu)的分類 ............................................................................................... 30 推出機(jī)構(gòu)的設(shè)計原則 ........................................................................................ 31 推件力的計算 ................................................................................................... 31 確定 推出方式及推桿位置 ................................................................................. 32 復(fù)位桿的設(shè)計 ................................................................................................... 32 第九章 冷卻系統(tǒng)的設(shè)計 ................................................................................................. 33 模溫對制品質(zhì)量和生產(chǎn)效率的影響 ................................................................... 33 溫度對制品質(zhì)量的影響 .......................................................................... 33 溫度對制品生產(chǎn)效率的影響 ................................................................... 33 模具冷卻系統(tǒng)的設(shè)計 ........................................................................................ 33 冷卻水口的設(shè)計 ..................................................................................... 33 冷卻回路的設(shè)計 ..................................................................................... 34 模具加熱系統(tǒng)的設(shè)計 ........................................................................................ 34 第十章 排氣槽的位置及排氣方式 ................................................................................... 37 排氣槽位置的確定 .......................................................................................... 36 注射模的排氣方式 .......................................................................................... 36 第十一章 制品的脫模設(shè)計 ............................................................................................. 39 脫模結(jié)構(gòu)的設(shè)計原則 ...................................................................................... 39 脫模結(jié)構(gòu)的分類 ............................................................................................. 38 總結(jié) ............................................................................................................................... 39 感謝 ............................................................................................................................... 40 參考文獻(xiàn) ........................................................................................................................ 41 Xxxx 學(xué)院 2 摘 要 本次畢業(yè)設(shè)計是為了讓我們 能綜合運用機(jī)械制造工藝學(xué)中的基本理論,并結(jié)合生產(chǎn)實習(xí)中學(xué)到的實踐知識,獨立的分析和解決工藝問題,具備設(shè)計一個中等復(fù)雜程度零件的工藝規(guī)程的能力和注塑模設(shè)計的基本原理和放法,擬定夾具設(shè)計方案,完成夾具結(jié)構(gòu)設(shè)計的能力,也能熟悉和運用有關(guān)手冊、圖表等技術(shù)資料 及編寫技術(shù)文件等基本技能的一次實踐。 該課題從產(chǎn)品結(jié)構(gòu)工藝性,具體模具結(jié)構(gòu)出發(fā),對模具的澆注系統(tǒng)、模具成型部分的結(jié)構(gòu)、頂出系統(tǒng)、冷卻系統(tǒng)、注塑機(jī)的選擇及有關(guān)參數(shù)的校核、都有詳細(xì)的設(shè)計。通過整個設(shè)計過程表明該模具能夠達(dá)到此塑件所要求的加工工藝。也就是設(shè)計一副注塑模具來生產(chǎn) 計算器外殼 塑件產(chǎn)品,以實現(xiàn)自動化提高產(chǎn)量。針對 摩托車轉(zhuǎn)向燈蓋 的具體結(jié)構(gòu),該模具是 側(cè) 澆口的 單分型 面注射模具。通過模具設(shè)計表明該模具能達(dá)到 摩托車 轉(zhuǎn)向燈蓋 的質(zhì)量和加工工藝要求。 關(guān)鍵詞 : 模具,注塑模,塑料模具 ,摩托車轉(zhuǎn)向燈蓋 Xxxx 學(xué)院 3 Abstract The graduation project is to enable us to study the integrated use ofmechanical manufacturing processes in the basic theory, bined with the production of practical knowledge learned in practice, independent analysis and resolution of process issues, has designed a mediumplexity parts of the process specification capabilities fixture design and application of basic principles and put laws and the development fixture design, the ability to plete the fixture structural design, but also are familiar with and use of relevant manuals, charts and other technical information and preparation of technical documents and practice for basic the entire design process, show that the mold can be achieved in this plastic parts required for processing. According to the subject39。s main task is to design calculator shell injection mold design. Also is to design an injection mold to produce plastic parts calculator shell products, in order to achieve automation to increase production. The specific structure for the calculator shell, the mold is the side of a singlegate injection mold parting line. As the plastic shell has an oval hole, set the straight guide column, the advantage is to simplify institutions so that mold shape narrowed significantly reduce manufacturing costs of the mold. Indicates that the mold through the mold design can achieve calculator shell quality and process technology requirements. Xxxx 學(xué)院 4 Keywords: mold, injection molding, plastic mould, motorcycle lights cover 第一章 緒論 模具是利用其特定形狀去成型具有一定的形狀和尺寸制品的工具。在各種材料加工工業(yè)中廣泛的使用著各種模具。例如金屬鑄造成型使用的砂型或壓鑄模具、金屬壓力加工使用的鍛壓模具、冷壓模具 等。 近年來,模具增長十分迅速,高效率、自動化、大型、微型、精密、高壽命的模具在整個模具產(chǎn)量中所占的比重越來越大 近年 來 許多模具企業(yè)加大了用于技術(shù)進(jìn)步的投資力度,將技術(shù)進(jìn)步視為企業(yè)發(fā)展的重要動力。一些國內(nèi)模具企業(yè)已普及了二維 CAD,并陸續(xù)開始使用 UG、 Pro/Engineer、 IDEAS、 EuclidIS等國際通用軟件,個別廠家 還引進(jìn)了 Moldflow、 CFlow、 DYNAFORM、 Optris和 MAGMASOFT 等 CAE 軟件 。 日本的模具產(chǎn)能約占全球的 40%,居世界第一位,每年向國外出口大量模具 。 模具行業(yè)在美國工業(yè)總產(chǎn)值中所占的比重呈現(xiàn)出不斷下降的態(tài)勢,但是美國模具在全球模具的高端產(chǎn)品仍然占據(jù)著重要地位。德國擁有世界領(lǐng)先的汽車、船舶等制造技術(shù),受上游行業(yè)需求影響