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目錄摘 要………………………………………………………………………………31.緒 論……………………………………………………………………5 ……………………………………………………3 …………………………………………………………?。?.蝸桿軸的加工工藝分析…………………………………………… 8……………………………………………………… 8…………………………………………… 9……………………………………………………… 10………………………………………… 11……………………………………………………… 15……………………………………………… 153.切削用量的選擇………………………………………………………18 主軸轉(zhuǎn)速的確定………………………………………………………18 背吃刀量的確定………………………………………18 進(jìn)給速度的確定……………………………………………………184.機(jī)床的選擇及參數(shù)………………………………………………………20 數(shù)控機(jī)床型號(hào)選擇及主要參數(shù)………………………………………21………………………………………235.填寫加工工藝文件……………………………………………………24參考文獻(xiàn)…………………………………………………………………………28后記………………………………………………………………………………29摘 要數(shù)控技術(shù)在當(dāng)今機(jī)械制造業(yè)中的重要地位和巨大效益,顯示了它在國(guó)家基礎(chǔ)工業(yè)現(xiàn)代化中的戰(zhàn)略性作用,并已成為傳統(tǒng)機(jī)械制造工業(yè)提升改造和實(shí)現(xiàn)自動(dòng)化、柔性化、集成化生產(chǎn)的重要手段和標(biāo)志。隨著我國(guó)工業(yè)化程度的不斷提高,企業(yè)之間的競(jìng)爭(zhēng)不斷激烈.這就要求各企業(yè)必須提出合理的生產(chǎn)方案和科學(xué)的工藝分析,在有限的資源中和有效的時(shí)間內(nèi)能夠合理利用設(shè)備,降低成本來提高生產(chǎn)效率,從而獲取更多的利潤(rùn)。本設(shè)計(jì)通過分析蝸桿軸的使用性能和技術(shù)要求確定毛坯材料、毛壞大小、熱處理要求。然后,分析軸的工藝特點(diǎn),主要加工表面,(其中有車削、銑削、磨削)及其有哪些技術(shù)要求并提出解決方法。最后根據(jù)分析選擇需要的機(jī)床、刀具、夾具、量具、冷卻液等及其相關(guān)參數(shù),確定加工工藝路線,最后編寫機(jī)械加工工藝文件。關(guān)鍵詞:生產(chǎn)效率 蝸桿軸 工藝分析 工藝設(shè)計(jì) 參數(shù)Abstract CNC technology in today39。s machinery manufacturing industry in an important position and great benefits, demonstrating its national infrastructure in the strategic role of industrial modernization, and has bee the traditional mechanical manufacturing industry to enhance the transformation and realization of automation, flexible, integrated production of the important the means and logo. With the continuous improvement of China39。s industrialization level, continued intense petition among enterprises. It demands that all panies must provide a reasonable production programs and the scientific process analysis, the limited resources and the effective period of time can be a reasonable use of equipment, lower costs to increase production efficiency in order to gain more profits. This design by analyzing the worm shaft to determine the use of performance and technical requirements of rough material, bad hair size, heat treatment requirements. Then, the analysis of shaft technology features, the main processing surface, (including turning, milling, grinding) and What are the technical requirements and propose solutions. Finally select the analysis of machine tools, cutting tools, fixtures, gauge, coolant, etc. and their associated parameters to determine the processing technology line, and finally the preparation of machining process file. Key words: production efficiency worm shaft Process Analysis Process Design Parameters 1 緒 論零件加工工藝畢業(yè)設(shè)計(jì)是對(duì)所學(xué)專業(yè)知識(shí)的一次鞏固,是在進(jìn)行社會(huì)實(shí)踐之前對(duì)所學(xué)各課程的一次深入的綜合性的總復(fù)習(xí),也是理論聯(lián)系實(shí)際的訓(xùn)練。隨著制造水平的提高, 數(shù)控機(jī)床在現(xiàn)代制造業(yè)中起著越來越重要的作用,為保證零件加工量,除了數(shù)控機(jī)床自身的精度外, 還與數(shù)控加工中的工藝措施密切相關(guān)。在編制數(shù)控工藝規(guī)程時(shí), 和編制傳統(tǒng)工藝規(guī)程一樣, 要考慮到機(jī)械的用途和性能, 零件材料, 生產(chǎn)條件和批量大小等。同時(shí), 要根據(jù)自身的特點(diǎn)和要求,在編制中作一些調(diào)整, 從而有效的保證產(chǎn)品質(zhì)量, 充分發(fā)揮數(shù)控機(jī)床的優(yōu)勢(shì),提高生產(chǎn)效率。機(jī)械制造廠生產(chǎn)的各種機(jī)械產(chǎn)品,可以是一臺(tái)機(jī)器,可以是機(jī)器中的某個(gè)部件,或是某個(gè)零件。機(jī)械產(chǎn)品的生產(chǎn)過程是將原材料轉(zhuǎn)變成為成品的全過程。 工藝過程是在生產(chǎn)過程中,直接改變生產(chǎn)對(duì)象的形狀、尺寸、相對(duì)位置和性質(zhì)等,使其成為成品或半成品的全過程。長(zhǎng)度與直徑比值大于5的軸通常稱為細(xì)長(zhǎng)軸,它在生產(chǎn)生活中有著廣泛的應(yīng)用,有些場(chǎng)合起著非常關(guān)鍵的作用。如機(jī)床的絲杠、光杠、發(fā)動(dòng)機(jī)的凸輪軸、拉床用拉刀、衛(wèi)星展開天線的螺桿等都是典型的細(xì)長(zhǎng)軸類零件。另外,在紡織、印染、造紙等機(jī)械中也有大量的用無縫鋼管制造的細(xì)長(zhǎng)導(dǎo)輥。車床車螺紋時(shí),進(jìn)給運(yùn)動(dòng)靠絲杠傳遞,車其它表面則靠光杠傳遞,因此車削后工件的精度與絲杠或光杠有直接的關(guān)系。凸輪軸是發(fā)動(dòng)機(jī)的第二大運(yùn)動(dòng)件,剛性差,但驅(qū)動(dòng)著整個(gè)配氣系