【正文】 編號(hào)： 桂林電子科技大學(xué)信息科技學(xué)院 畢業(yè)設(shè)計(jì) (論文 )說明書 題 目： CA6140 開合螺母 加工工藝及夾具設(shè)計(jì) 院 （系）： 機(jī)電工程系 專 業(yè)： 機(jī)械設(shè)計(jì)制造及其自動(dòng)化 學(xué)生姓名： 蔣樹人 學(xué) 號(hào)： 1053100314 指導(dǎo)教師單位： 桂林電子科技大學(xué)信息科技學(xué)院 姓 名： 柏子剛 職 稱： 講師 題目類型 ： ?理論研究 ?實(shí)驗(yàn)研究 ? 工程設(shè)計(jì) ?工程技術(shù)研究 ?軟件開發(fā) ?應(yīng)用研究 2020 年 5 月 26 日 2 摘 要 本畢業(yè)設(shè)計(jì)是 CA6140車床上的螺母（也更準(zhǔn)確的說法也 可以 稱 之 為 開合螺母 ）的設(shè)計(jì)，包括以下幾個(gè)方面：設(shè)計(jì)的組件，計(jì)算過程和工作時(shí)間，兩套夾具設(shè)計(jì)（車床，鉆床，每一組），所要求的特殊夾具 ，和相應(yīng)的制卡和簡(jiǎn)單的運(yùn)動(dòng)仿真。 專用 夾具方案的確定 ，機(jī)械設(shè)計(jì)行業(yè)加工中，是一步非常非常重要一個(gè)步驟。專用夾具的 方案 適合與否，幾乎都直接決定了該零件能否進(jìn)行批量高效的加工。我們?cè)谧罱K肯定其 設(shè)計(jì)方案時(shí)應(yīng)遵循以下 幾點(diǎn)規(guī)定與法則：那么最開始第一點(diǎn)必須要保證 加工質(zhì)量， 設(shè)計(jì)的 結(jié)構(gòu)盡 可能要 簡(jiǎn)單 （只要滿足加工要求，夾具本身越單一越好） ，操作 起來要簡(jiǎn)單可行 ，比如鉆床同一個(gè)零件二次裝夾，就必須考慮到這一點(diǎn)，不然會(huì)大大降低加工效率） 制造 成本的經(jīng)濟(jì)效益較高，例如本零件的毛坯鑄造可用青銅，也可用 45或者灰鑄鐵，此時(shí)就要確定好是否符合經(jīng)濟(jì)效益原則。 特別是 我們的導(dǎo)師柏 老師 ，明明是中午午休時(shí)間，卻放棄了自己私人的午休，為我們做畢設(shè)的同學(xué)們犧牲了寶貴的時(shí)間，只為了我們能夠在這四年的總結(jié)中給母校交出滿意的答卷。 對(duì)于 我而言， 我希望在“此次的模擬的非實(shí)際加工產(chǎn)品”的設(shè)計(jì)可以鍛煉自己的綜合分析問題的方法，如何準(zhǔn)確和解決問題的能力，而且對(duì)同學(xué)們的未來就業(yè)與實(shí)操，打下了異常良好的基 礎(chǔ)性工作?？偟膩碚f， 這次畢設(shè) 所帶給我們的是平時(shí)無法學(xué)到的，收獲很多！ 關(guān)鍵詞： CA6140 開合螺母 。夾具設(shè)計(jì) 。工藝工裝設(shè)計(jì) . 3 Abstract This graduation design is on CA6140 lathe nut (also more accurately can also be called a half nuts) design, including the following aspects: the design of ponents, calculation process and working time, two sets of fixture design, lathe, drilling machine, each group), the required special fixture, and the corresponding fabrication and simple movement simulation. The scheme of special fixture design industry processing machinery, is very, very important one fixture scheme suitable for or not, almost all can directly determines the parts for efficient batch we sure the final design plan should follow the following rules and laws: then started the first must ensure the quality of processing, the structure of the design as much as possible, to simple, as long as meet the requirements of processing, fixture itself as a single as possible), to be simple and feasible to operate, such as the second clamping drilling machine with the same parts, must be with this in mind, or it will significantly reduce processing efficiency) the economic benefits of the manufacturing cost is higher, such as the blank casting bronze are available, and this part also can use 45 or gray cast iron, this will determine whether conform to the principle of economic our mentor teacher parker, it is at noon lunch break, but to give up their own private lunch, do you classmates for us at the expense of his precious time, in order to we can only in the four years of summary to his Alma mater to hand over a satisfactory answer. For me, I hope that in the the simulation of the actual processing products design can exercise their own prehensive method to analyze the problem, how to accurately and problem solving skills, and the students for the future employment and real operation, laid a good general, the project brings to us are usually unable to learn, a lot! Key world: open nut to CA6140。tong design。process design. 4 目 錄 引言 .................................................................................................................................................. 5 1 零件的分析 CA6140車床開合螺母加工工藝 .................................................................................. 6 CA6140該零件的作用 ........................................................................................................... 7 零件的工藝分析 ................................................................................................................... 7 ................................................................................................................... 7 確定零件毛坯的材料 ................................................................................................. 7 CA6140基準(zhǔn)面的選擇 ................................................................................................ 8 制定準(zhǔn)確合理的工藝路線 .......................................................................................... 8 零件的加工方法的選擇 : ............................................................................................ 8 .................................................................................................. 9 ............................................................................................................ 9 ................................................................................................................... 9 ................................................................................................................... 9 工序劃分的確定 ................................................................................................................... 9 確定切削用量及基本工時(shí) ....................................................................................................18 粗銑底平面 ..............................................................................................................18 精銑底平面 ...........................................................................................................18 粗銑燕尾 ................................................................................................................18 精銑燕尾 ..............................................................................................................19 粗銑Φ 80外端面 ....................................................................................................19 精銑Φ 80外端面 ...................................................................................................20 鉆底面Φ 12H7孔 ...........................................................................................