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閥蓋加工工藝規(guī)程及工裝夾具設(shè)計(jì)-展示頁(yè)

2025-06-25 19:37本頁(yè)面
  

【正文】 tion through the clamp organization fixed motionless, this duty is pletes by the engine bed jig. Regarding the single unit, the small batch production, should use the universal jig as far as possible, like this may reduce the work piece the production cost. But because the universal jig is suitable each kind of work piece the attire to clamp, therefore time clamp often pares spends the time and operates plex ,the production efficiency is low ,also guarantees the work in gaccuracy with difficulty, for this reason must design the unit clamp. Through the curriculum design, the theory and production practice, exercise their ability to analyze and solve problems,in this process,I independently analyze and solve the process problems of parts in machinery manufacturing, design of the typical structure of machine tool fixture, and improve the design ability structure, Conducted an adaptive training for future work, so as to lay a solid foundation.Key word: Craft;datum;cutting;specifications;localization; datum,;positionerror 第 4 頁(yè) 共 36 頁(yè)目錄1. 緒論 6 6 機(jī)床夾具的分類(lèi) 7 8 9 10 零件的分析 10 零件的工藝分析 10 零件的生產(chǎn)類(lèi)型 11 閥蓋加工的主要問(wèn)題和工藝過(guò)程設(shè)計(jì) 11 確定毛坯的制造形式 11 定位基準(zhǔn)的選擇 12 確定工藝路線(xiàn) 13 確定機(jī)械加工余量、工序尺寸及毛坯尺寸 15 確定切削用量 17 小結(jié) 243. 專(zhuān)用夾具設(shè)計(jì) 25 對(duì)專(zhuān)用夾具的基本要求 25 夾具的設(shè)計(jì) 26 零件的加工工藝分析: 26 定位加緊方案的確定及論證: 26 小結(jié) 31參考文獻(xiàn) 33致謝 34第 6 頁(yè) 共 36 頁(yè)1. 緒論 畢業(yè)設(shè)計(jì)是對(duì)我們大學(xué)四年所學(xué)知識(shí)的總結(jié),同時(shí)我們也得到了鍛煉。 s cylinder, will pass through half finished boring, the finished boring, the fine articulation and the trundle successively for the guarantee hole39。s design is also an essential part, whether does it relate raises its processing efficiency the this both in the machinefinishing are the important links. Sleeve ponents main processing surface for hole and outer annulus surface. The outer annulus face work needs to request according to the precision to be possible to choose the turning and the grinding. The hole processing method39。關(guān)鍵詞:工藝設(shè)計(jì);基準(zhǔn)選擇;切削用量;定位誤差 THE VALVE COVER PROCESSING PROCEDURE AND FIXTURE DESIGN ABSTRACT Is the ponents craft establishment, holds the very important status in the machinefinishing, the Components craft establishes reasonable, whether do this direct relation ponents achieve the available quality requirement finally。但是由于通用夾具適用各種工件的裝夾,所以?shī)A,時(shí)往往比較費(fèi)時(shí)間,并且操作復(fù)雜生產(chǎn)效率低,也難以保證加工精度,為此需設(shè)計(jì)專(zhuān)用夾具。 在機(jī)床上對(duì)零件進(jìn)行機(jī)械加工時(shí),為保證工件加工精度,首先要保證工件在機(jī)床上占有正確的位置,然后通過(guò)夾緊機(jī)構(gòu)使工件在正確位置上固定不動(dòng) ,這一任務(wù)就是由機(jī)床夾具完成 ??准庸し?法的選擇比較復(fù)雜 ,需要考慮零件的結(jié)構(gòu)特點(diǎn) 、孔徑大小 、長(zhǎng)徑比 、精度和粗糙度要求以及生產(chǎn)規(guī)模等各種因素 。 閥蓋零件的主要加工表面為孔和外圓表面。城南學(xué)院 閥蓋加工工藝規(guī)程及夾具設(shè)計(jì)畢業(yè)設(shè)計(jì)閥蓋加工工藝規(guī)程及工裝夾具設(shè)計(jì)摘要 零件的加工工藝編制,在機(jī)械加工中占有非常重要的地位零件工藝編制得合不合理,這直接關(guān)系到零件最終能否達(dá)到質(zhì)量要求,夾具的設(shè)計(jì)也是不可缺少的一部分 ,它關(guān)系到能否提高其加工效率的問(wèn) 題。因此這兩者在機(jī)械加工行業(yè)中是至關(guān)重要的環(huán)節(jié)。外圓表面加工根據(jù)精度要求可選擇車(chē)削和磨削。對(duì)于精度要求較高的孔往往還要采用幾種不同的方法順次進(jìn)行加工。對(duì)于單件 、小批量生產(chǎn),應(yīng)盡量使用通用夾具 ,這樣可以降低工件的生產(chǎn)成本 。 通過(guò)該課程設(shè)計(jì),將所學(xué)理論與生產(chǎn)實(shí)踐相結(jié)合,鍛煉了自己分析問(wèn)題、解決問(wèn)題的能力,在這個(gè)過(guò)程中我獨(dú)立地分析和解決了零件機(jī)械制造的工藝問(wèn)題,設(shè)計(jì)了機(jī)床專(zhuān)用夾具的典型結(jié)構(gòu),提高了結(jié)構(gòu)設(shè)計(jì)能力,為今后的工作進(jìn)行了一次適應(yīng)性鍛煉,從而為以后打下了堅(jiān)實(shí)的基礎(chǔ)。 Jig39。s choice is quite plex, needs to consider the ponents the unique feature, the aperture size, the length to diameter ratio, the precision and roughness request as well as the scale of production and soon each kind of factor. Of then must use several different methods regarding the accuracy requirement high hole to carry on the processing in order. This design 39。s precision and the surface quality successively for the guarantee hole39。 能熟練的運(yùn)用機(jī)械制造工藝學(xué)及相關(guān)課程的基本理論,以及在生產(chǎn)實(shí)習(xí)中所學(xué)到的實(shí)踐知識(shí),正確的分析和解決一個(gè)零件在加工中的定位,加緊和工藝路線(xiàn)地合理擬定等問(wèn)題,從而保證零件制造的質(zhì)量,生產(chǎn)率和經(jīng)濟(jì)性。進(jìn)一步提高我們的計(jì)算設(shè)計(jì)制圖能力,能比較專(zhuān)業(yè)熟練地查閱和使用各種技術(shù)資料在設(shè)計(jì)制造中培養(yǎng)我們嚴(yán)謹(jǐn)?shù)墓ぷ髯黠L(fēng)和獨(dú)立的工作能力。其主要目的是讓學(xué)生不所學(xué)的工藝?yán)碚摵蛯?shí)踐知識(shí)在實(shí)踐的工藝,夾具設(shè)計(jì)中綜合地加以應(yīng)用,進(jìn)而得以加深和發(fā)展,提高學(xué)生分析和解決生產(chǎn)實(shí)際問(wèn)題的能力,為以后從事工作奠定了一定基礎(chǔ)。在這次設(shè)計(jì)過(guò)程中,廣泛的收集各種資料及標(biāo)準(zhǔn),課程設(shè)計(jì)中另一個(gè)重要的設(shè)計(jì)為專(zhuān)用夾具的設(shè)計(jì)。夾具是機(jī)械制造廠(chǎng)使用的一種工藝裝備,分為機(jī)床夾具、焊接夾具、裝配夾具及檢驗(yàn)夾具等。 對(duì)工件進(jìn)行加工時(shí),為了保證加工要求,首先要使工件相對(duì)于刀具及機(jī)床有正確的位置,并使這個(gè)位置在加工過(guò)程中不因外力的影響而變動(dòng)。 工件的裝夾方法有兩種:一種是工件直接裝夾在機(jī)床的工作臺(tái)或花盤(pán)上;另一種是工件裝夾在夾具上。這種方法無(wú)需專(zhuān)用裝備但效率低,一般用于小批生產(chǎn)。 用夾具裝夾工件有下列優(yōu)點(diǎn): 能穩(wěn)定地保證工件的加工精度 用夾具裝夾工件時(shí),工件相對(duì)于刀具及機(jī)床的位置精度由
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