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本科畢業(yè)論文-塑料端蓋的模具設(shè)計(jì)-資料下載頁(yè)

2025-01-16 15:12本頁(yè)面
  

【正文】 0 世紀(jì) 80 年代開始,發(fā)達(dá)工業(yè)國(guó)家的模具工業(yè)已從機(jī)床工業(yè)中分離出來(lái),并發(fā)展成為獨(dú)立的工業(yè)部門,其產(chǎn)值已超過機(jī)床工業(yè)的產(chǎn)值。改革開放以來(lái), 我國(guó)的模具工業(yè)發(fā)展也十分迅速。近年來(lái),每年都以 15%的增長(zhǎng)速度快速發(fā)展。許多模具企業(yè)十分重視技術(shù)發(fā)展。加大了用于技術(shù)進(jìn)步的投入力度,將技術(shù)進(jìn)步作為企業(yè)發(fā)展的重要?jiǎng)恿Α4送?,許多科研機(jī)構(gòu)和大專院校也開展了模具技術(shù)的研究與開發(fā)。模具行業(yè)的快速發(fā)展是使我國(guó)成為世界超級(jí)制造大國(guó)的重要原因。今后,我國(guó)要發(fā)展成為世界制造強(qiáng)國(guó),仍將依賴于模具工業(yè)的快速發(fā)展,成為模具制造強(qiáng)國(guó)。 中國(guó)塑料模工業(yè)從起步到現(xiàn)在,歷經(jīng)了半個(gè)多世紀(jì),有了很大發(fā)展,模具水平有了較大提高。在大型模具方面已能生產(chǎn) 48(約 122CM)大屏幕彩電塑殼注射模 具, 大容量洗衣機(jī)全套塑料模具以及汽車保險(xiǎn)杠和整體儀表板等塑料模具,精密塑料模方面,以能生產(chǎn)照相機(jī)塑料件模具,多形腔小模數(shù)齒輪模具及塑封模具。經(jīng)過多年的努力,在模具 CAD/CAE/CAM技術(shù),模具的電加工和數(shù)控加工技術(shù),快速成型與快速制模技術(shù),新型模具材料等方面取得了顯著進(jìn)步;在提高模具質(zhì)量和縮短模具設(shè)計(jì)制造周期等方面作出了貢獻(xiàn)。 盡管我國(guó)模具工業(yè)有了長(zhǎng)足的進(jìn)步,部分模具已達(dá)到國(guó)際先進(jìn)水平,但無(wú)論是數(shù)量還是質(zhì)量仍滿足不了國(guó)內(nèi)市場(chǎng)的需要,每年仍需進(jìn)口 10 多億美元的各類大型,精密,復(fù)雜模具。與發(fā)達(dá)國(guó)家的 模具工業(yè)相比,在模具技術(shù)上仍有不小的差距。今后,我國(guó)模具行業(yè)應(yīng)在以下幾方面進(jìn)行不斷的技術(shù)創(chuàng)新,以縮小與國(guó)際先進(jìn)水平的距離。 ( 1)注重開發(fā)大型,精密,復(fù)雜模具;隨著我國(guó)轎車,家電等工業(yè)的快速發(fā)展,成型零件的大型化和精密化要求越來(lái)越高,模具也將日趨大型化和精密化。 ( 2)加強(qiáng)模具標(biāo)準(zhǔn)件的應(yīng)用;使用模具標(biāo)準(zhǔn)件不但能縮短模具制造周期,降低模具制造成本而且能提高模具的制造質(zhì)量。因此,模具標(biāo)準(zhǔn)件的應(yīng)用必將日漸廣泛。 ( 3)推廣 CAD/CAM/CAE 技術(shù);模具 CAD/CAM/CAE 技術(shù)是模具技術(shù)發(fā)展的天津大學(xué) 2022 屆本科生畢業(yè)設(shè)計(jì)(論文) 6 一個(gè)重要里程碑。實(shí) 踐證明,模具 CAD/CAM/CAE 技術(shù)是模具設(shè)計(jì)制造的發(fā)展方向,可顯著地提高模具設(shè)計(jì)制造水平。 ( 4)重視快速模具制造技術(shù),縮短模具制造周期;隨著先進(jìn)制造技術(shù)的不斷出現(xiàn),模具的制造水平也在不斷地提高,基于快速成形的快速制模技術(shù),高速銑削加工技術(shù),以及自動(dòng)研磨拋光技術(shù)將在模具制造中獲得更為廣泛的應(yīng)用。 天津大學(xué) 2022 屆本科生畢業(yè)設(shè)計(jì)(論文) 致 謝 經(jīng)過三個(gè)月的畢業(yè)設(shè)計(jì)忙碌之后,設(shè)計(jì)最終完成,心理有一種說不出的輕松,設(shè)計(jì)過程中遇到許多的問題,在常老師和同學(xué)的幫助下予以解決。首先要感謝伍超老師對(duì)我的指導(dǎo)和督促,伍老師給我指出了正確的設(shè)計(jì)方向,使我加深了對(duì)知識(shí)的理解 ,同時(shí)也避免了在設(shè)計(jì)過程中少走彎路,伍老師的督促使我一直把畢業(yè)設(shè)計(jì)放在心理,保證按質(zhì)按量的完成;要感謝同小組同學(xué),是大家營(yíng)造了良好的學(xué)習(xí)環(huán)境,在做設(shè)計(jì)的過程中互幫互助,使我的 CAD操作水平比以前有了很大提高,同時(shí)較全面的掌握了 Word的編輯功能。 大專生活至此劃上了圓滿的句號(hào),在南京技師學(xué)院這塊土地上有眾多莘莘學(xué)子辛勤的耕耘,在這塊土地上我健康快樂的成長(zhǎng),我永遠(yuǎn)不會(huì)忘記可親的同學(xué),我永遠(yuǎn)記得這片土地。 天津大學(xué) 2022 屆本科生畢業(yè)設(shè)計(jì)(論文) 天津大學(xué)本科生畢業(yè)設(shè)計(jì)(論 文)開題報(bào)告 課題名稱 塑料端蓋的模具設(shè)計(jì) 學(xué)院名稱 機(jī)械工程學(xué)院 專業(yè)名稱 模具設(shè)計(jì)與制造 學(xué)生姓名 楊秀超 指導(dǎo)教師 常林楓 一、課題的來(lái)源、目的和意義、國(guó)內(nèi)外現(xiàn)狀及水平 1.課題來(lái)源: 塑料模具設(shè)計(jì)指導(dǎo) —— 塑料端蓋 2.目的和意義: 隨著社會(huì)的發(fā)展,人類生活水平的提高。人們對(duì)塑料產(chǎn)品的要求日益增高,不但應(yīng)有要求的效果,還應(yīng)有美觀大方的外表。設(shè)計(jì)和制造者都應(yīng)以人為本,創(chuàng)造人類的視聽夢(mèng)想。 塑料產(chǎn)品的材料主要來(lái)自塑料,即大部份的塑件都是以注塑模的制造。,因此,注塑模在塑料產(chǎn)品業(yè)中顯得相當(dāng)重要。 由于塑料產(chǎn)品應(yīng)用前景可觀,更新?lián)Q代較快,也就要求注塑模也應(yīng)跟上時(shí)代發(fā)展的步伐。 3.國(guó)內(nèi)外現(xiàn)狀及水平 國(guó)內(nèi)的塑料制品行業(yè)在近年有了明顯的提高,從而也帶動(dòng)了注塑模的迅速發(fā)展,但是與國(guó)際水平卻相差很遠(yuǎn),主要缺陷明顯的表現(xiàn)在精度不高,技術(shù)含量底、復(fù)雜程度底等缺點(diǎn)。嚴(yán)重的阻礙著國(guó)內(nèi)塑料制品業(yè)的發(fā)展。設(shè)計(jì)出好的產(chǎn)品卻無(wú)法做出是我模具業(yè)最大的不足。因此,注重科技含量,借簽了國(guó)外的先進(jìn)理論技術(shù)則尤為重要。 天津大學(xué) 2022 屆本科生畢業(yè)設(shè)計(jì)(論文) 二、課題研究的主要內(nèi)容、準(zhǔn)備采取的措施 1.課題研究的主要內(nèi)容: 本課題主要是塑料成型的工藝設(shè)計(jì)及制 造,也就是注塑模的工藝設(shè)計(jì)方案分析及確定工藝計(jì)算,模具結(jié)構(gòu)設(shè)計(jì)計(jì)算等內(nèi)容。生產(chǎn)主要是為了提高生產(chǎn)效率,因此在設(shè)計(jì)是要力求結(jié)構(gòu)簡(jiǎn)單,但是一定要保證其精度要求 。 2.準(zhǔn)備采取的措施: 先對(duì)塑件進(jìn)行結(jié)構(gòu)分析,確定型腔的布局,從各方面考慮其結(jié)構(gòu)布局,我也多次到成型部門進(jìn)行現(xiàn)場(chǎng)模具制造學(xué)習(xí),積累了生產(chǎn)實(shí)際經(jīng)驗(yàn),了解本課題一些相關(guān)技術(shù)要求及注意事項(xiàng)。 選題是否合適: 是□ 否□ 課題能否實(shí)現(xiàn): 能□ 不能□ 指導(dǎo)教師(簽字) 年 月 日 選題是否合適: 是□ 否□ 課題能否實(shí)現(xiàn): 能□ 不能□ 審題小組組長(zhǎng)(簽字) 年 月 日 天津大學(xué) 2022 屆本科生畢業(yè)設(shè)計(jì)(論文) 請(qǐng)您刪除一下內(nèi)容, O(∩ _∩ )O 謝謝!??! Many people have the same mixed feelings when planning a trip during Golden Week. With heaps of time, the sevenday Chinese 請(qǐng)您刪除一下內(nèi)容, O(∩ _∩ )O 謝謝!?。?National Day holiday could be the best occasion to enjoy a destination. However, it can also be the easiest way to ruin how you feel about a place and you may bee more fatigued after the holiday, due to battling the large crowds. During peak season, a dream about a place can turn to nightmare without careful planning, especially if you travel with children and older people. As most Chinese people will take the holiday to visit domestic tourist destinations, crowds and busy traffic are inevitable at most places. Also to be expected are increasing transport and acmodation prices, with the possibility that there will be no rooms available. It is also mon that you39。 ll wait in the line for one hour to get a ticket, and another two hours at the site, to only see a tiny bit of the place due to the crowds. Last year, 428 million tourists traveled in China over the weeklong holiday in October. Traveling during this period is a matter that needs thorough preparation. If you are short on time to plan the uping Golden Week it may not be a bad idea to avoid some of the most crowded places for now. There is always a place so fascinating that everyone yearns for. Arxan is a place like this. The beauty of Arxan is everlasting regardless of the changing of four seasons. Bestowed by nature, its spectacular seasonal landscape and mountains are just beyond word. Arxan is a crucial destination for the remended travelling route, China Inner Mongolia Arxan — Hailar — Manzhouli. It is also the joint of the four prairies across the SinoMongolian border, where people gravitate towards the exotic atmosphere mixed with Chinese, Russian, and Mongolia elements. As a historic site for the Yitian Battle, Arxan still embodies the spirit of Genghis Khan. Walking into Arxan, you will be amazed by a kaleidoscope of geous colors all the year round the Spring azaleas blooming red in the snow, the Summer sea wavering blue in the breeze, the Autumn leaves painted in yellow covering volcanic traces, and the Winter woods shining white on the vast alpine snowscape. Hinggan League Arxan city is situated in the far eastern area of Inner Mongolia Autonomous Region. Its full name Haren Arxan means hot holy water in the Mongolian language. Arxan is a tourism city in the northern frontier with a blend of large forest, grand prairies, vast snowfield, heaven lake cluster, thermium, as well as volcanic cluster. It is a rare and unique ecotourism base filled with healthy sunshine, clean air and unspoiled green. Nestled close to the country39。s largest virgin forest, and known for its spring and ecological environment, Arxan is marveled at by many tourists as the purest land on earth. You cannot miss out the Autumn of Arxan. It is definitely the best with brightlycolored scenery full of emotions. Autumn in the northern part of the country es earlier than the South. A September rain followed by the footprints of Autumn brings more colors to the once emerald green mountain and blooming grassland. Shutterbugs flock to see for themselves the marvel of splendid colors around the mountains and wate
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