【正文】 面 ............................................................................................................................8 工序 2；粗、半精、精鏜 CA6140 側(cè)面三杠孔 ..................................................................................10 工序 3：鉆頂面四孔 ..............................................................................................................................16 工序 4：鉆側(cè)面兩孔 ..............................................................................................................................203 專用夾具設(shè)計(jì) .........................................................................................................................................................23 銑平面夾具設(shè)計(jì) ............................................................................................................................................23 研究原始質(zhì)料 .........................................................................................................................................23 切削力及夾緊分析計(jì)算 ..........................................................................................................................23 誤差相關(guān)情況分析與各工況受力情況的計(jì)算 .....................................................................................24 鏜孔夾具設(shè)計(jì) ................................................................................................................................................25 切削力與夾緊力分析 .............................................................................................................................25 誤差分析與計(jì)算 .....................................................................................................................................27 鉆頂面四孔夾具設(shè)計(jì) .....................................................................................................................................28 切削力及夾緊力的計(jì)算 .........................................................................................................................28 誤差分析與計(jì)算 .....................................................................................................................................29 夾具設(shè)計(jì)及操作的簡(jiǎn)要說明 .................................................................................................................304 結(jié) 論 .....................................................................................................................................................................30參 考 文 獻(xiàn) ..............................................................................................................................................................31致 謝 ........................................................................................................................................................................321 / 380 / 381 緒論 機(jī)械制造加工在國民經(jīng)濟(jì)發(fā)展中的地位現(xiàn)代社會(huì)中，人們?yōu)榱烁咝А⒔?jīng)濟(jì)地生產(chǎn)各種高質(zhì)量產(chǎn)品，日益廣泛的使用各種機(jī)器、儀器和工具等技術(shù)設(shè)備與裝備。本課題在設(shè)計(jì)的過程當(dāng)中，遵循創(chuàng)新原則、安全原則、技術(shù)經(jīng)濟(jì)原則、工藝性原則、維護(hù)性原則的基本要求，并通過多方面進(jìn)行調(diào)查研究以及吸取各方面經(jīng)驗(yàn)，所制定出來的合理的、具體的設(shè)計(jì)方案。再擬訂較為合理的工藝規(guī)程，充分體現(xiàn)質(zhì)量、生產(chǎn)率和經(jīng)濟(jì)性的統(tǒng)一。0 / 38本 科 畢 業(yè) 設(shè) 計(jì) 題目 車床后托架工藝夾具設(shè)計(jì)及三維建模 系 別 工程技術(shù)系 專 業(yè) 機(jī) 械 設(shè) 計(jì) 制 造 及 其 自 動(dòng) 化 學(xué) 生 姓 名 學(xué) 號(hào) 指 導(dǎo) 教 師 職 稱 教授 2022 年 03 月 18 日1 / 38CA6140 車床后托架（零件號(hào) 831001）工藝夾具設(shè)計(jì)及三維建模Qq2604130359摘 要現(xiàn)代機(jī)械加工工藝技術(shù)的定義是通過機(jī)械加工的方法改變毛坯的形狀、尺寸、相對(duì)位置和性質(zhì)使其成為合格零件的全過程。機(jī)床夾具是在金屬切削機(jī)床上使用的夾具統(tǒng)稱。關(guān)鍵詞： 產(chǎn)品設(shè)計(jì)； 后托架； 機(jī)械加工工藝； 機(jī)床夾具 II / 38ABSTRACTThe machining process is blank machining method to change the shape, size, relative position and the nature of the whole process of making it a good part, is an important means to achieve product design, to ensure product quality, save energy and reduce consumption, workers a basis for processing. The subject CA6140 lathe bracket process planning, first through the analysis of the parts diagram to understand the structure of the workpiece, defined the specific technical requirements, which the various ponents of the workpiece surface to select the appropriate processing methods. The formulation of a more reasonable process of order, fully embodies the unity of quality, productivity and economy.Jigs and fixtures fixture collectively referred to as metal cutting machine tools. Modern production jigs and fixtures are an indispensable technology and equipment, which directly affects the accuracy of the machinery manufacturing process, labor productivity and product manufacturing costs, jigs and fixtures design in the product design and manufacturing, and production technical preparations occupies an extremely important position. Fixture design is an important technical work is an important part o