【正文】 ............................................................................................ 3 主軸孔的加工 .................................................................................................. 3 孔系加工 .......................................................................................................... 4 第二章 減速機(jī)箱體加工工藝過(guò)程分析 .......................................................................... 5 箱體的材料、毛坯及熱處理 .................................................................................. 5 毛坯種類的確定。 processing technology。同時(shí)以 WH212 型 號(hào)減速機(jī)為例進(jìn)行工藝過(guò)程設(shè)計(jì)，編寫(xiě)相應(yīng)工藝卡片；其次再對(duì)減速機(jī)箱體的底孔、軸承孔的加工進(jìn)行 專用 夾具設(shè)計(jì)與精度和誤差分析， 實(shí)踐證明， 該工藝與夾具設(shè)計(jì)結(jié)果能應(yīng)用于生產(chǎn)要求。 保證零件加工質(zhì)量的前提下，提高了生產(chǎn)率，降低了生產(chǎn)成本，是國(guó)內(nèi)外現(xiàn)代機(jī)械加工工 藝的主要發(fā)展方面方向之一。 畢業(yè)設(shè)計(jì)（論文） 課程名稱： 減速機(jī)箱體零件加工工藝及夾具設(shè)計(jì) 進(jìn)行日期 2020年 9月 15日至 2020 年 11 月 20日 學(xué)生姓名： 專業(yè)班級(jí)： 指導(dǎo)教師： 所屬站點(diǎn)： 站 長(zhǎng)： Ⅱ 摘 要 摘 要 箱體是機(jī)器和部件的基礎(chǔ)零件， 由它將機(jī)器和部件中許多零件連接 成一個(gè)整體 ， 并使之保持正確的相互位置 ， 彼此能協(xié)調(diào)地運(yùn)動(dòng) 。箱體類零件由箱座、箱蓋組成，其結(jié)構(gòu)較為復(fù)雜， 其上通常有一些尺寸精度和位置精度要求都比較高的定位銷孔，用作相關(guān)零件定位或在加工過(guò)程中定位，故機(jī)械加工勞動(dòng)量相當(dāng)大，困難也相當(dāng)大 ，對(duì)工藝人員工藝、夾具設(shè)計(jì)提出很高要求。本文通過(guò)對(duì)減速機(jī)箱體零件圖及結(jié)構(gòu)形式 的分析 基礎(chǔ)上，對(duì)減速機(jī)箱體 零件 進(jìn)行工藝分析、工藝說(shuō)明及加工過(guò)程的技術(shù)要求和精度分析。 關(guān)鍵詞 ： 減速機(jī) ； 加工工藝 ； 定位 ； 夾具設(shè)計(jì) Abstract Abstract Box is the basis of machines and ponents parts, which makes many parts are linked into a whole, and make it maintain the correct mutual position, in a coordinated manner with each other movements. Boxtype parts are posed of the box seat, lid, whose structure is relatively plex, usually a number of dimensional accuracy and location of the relatively high precision positioning pin holes, as the relevant parts location or in the process of positioning. Therefore, it is difficult for process workers to design the process and fixture design. This Paper requires that with quality beg development, with benefits seek to live on to store , under the prerequisite of guaranteeing the quality of element processing, have raised productivity and reduced production cost, is one of mainly direction of domestic and international modern machining technology developing. Through knowing and analysis the configuration of the casing part drawing for WH212 gear reducer， so as to analysis the process， make process explanation and analysis the technical requirement and the precision of gear reducer. Then, carry out the design of clamping apparatus and analysis the precision and error for the processing of bearing hole and the base hole of the casing of gear reducer， this technology and the design result of clamping apparatus can apply in production requirement. Key words: gear reduce。 fixed position。 ......................................................................................... 5 毛坯的形狀及尺寸的確定： .......................................................................... 5 毛坯的材料熱處理 .......................................................................................... 6 減速機(jī)箱體的主要技術(shù)要求 .................................................................................. 6 減速機(jī)箱體的機(jī)械加工工藝過(guò)程 .......................................................................... 7 零件圖分析 .............................................................................................................. 8 減速機(jī)加工的 工藝路線 .......................................................................................... 8 加工方法的選擇 .............................................................................................. 8 加工階段的劃分 .............................................................................................. 9 工序的集中與分散 ........................................................................................ 10 加工順序的安排 ............................................................................................ 10 第三章 定位基準(zhǔn)的選擇 ................................................................................................ 14 粗基準(zhǔn)的選擇 ........................................................................................................ 14 精基準(zhǔn)的選擇 ........................................................................................................ 14 第四章 加工余量和工序尺寸的確定 ............................................................................ 16 加工余量的確定 .................................................................................................... 16 尺寸鏈的計(jì)算 ........................................................................................................ 16 第五章 夾具設(shè)計(jì)概述 .................................................................................................... 18 機(jī)床夾具的概念 .................................................................................................... 18 目 錄 Ⅱ 機(jī)床夾具的分類 .................................................................................................... 18 機(jī)床夾具的作用 .................................................................................................... 18 機(jī)床夾具設(shè)計(jì)過(guò)程 ................................................................................................ 18 減速機(jī)箱體夾具設(shè)計(jì) ............................................................................................ 19 第六章 鉆床夾具設(shè)計(jì) .................................................................................................... 20 設(shè)計(jì)任務(wù)分析 ........................................................................................................ 20 設(shè)計(jì)方案論證 ........................................................................................................ 20 切削力及夾緊力的計(jì)算 ........................................................................................ 20 設(shè)計(jì)及操作的簡(jiǎn)要說(shuō)明 ........................................................................................ 21 結(jié)構(gòu)分析 ............................................................................................................