【正文】 racy of the plane is easier than to guarantee the hole’s. So the design follows the principle of plane first and hole second. And in order to guarantee the working accuracy of the series of hole, the machining of the hole and the plane is clearly divided into rough machining stage and finish machining stage. The supporting hole of the input bearing and output bearing is as the rough datum. And the top area and two technological holes are as the finish datum. The main process of machining technology is that first, the series of supporting hole fix and machine the top plane, and then the top plane and the series of supporting hole fix and machine technological hole. In the followup working procedure, all working procedures except several special ones fix and machine other series of hole and plane by using the top plane and technological hole. The machining way of the series of supporting hole is to bore hole by coordinate. The bination machine tool and specialpurpose clamping apparatus are used in the whole machining process. The clamping way is to clamp by pneumatic and is very helpful. The instruction does not have to lock by itself. So the product efficiency is high. It is applicable for mass working and machining in assembly line. It can meet the design requirements. Key words gearbox machining technology specialpurpose clamping apparatus 課件之家精心整理資料 歡迎你的欣賞 課件之家精心整理資料 歡迎你的欣賞 目 錄 1 序言 ............................................................................................................................................. 1 ..................................................................................................................... 2 概述 ................................................................................................................................... 2 零件的作用 ....................................................................................................................... 2 零件的工藝分析 ............................................................................................................... 2 確定工藝方案的原則及注意問題 ................................................................................... 2 粗、精加工分開原則 ............................................................................................ 3 工序集中與分散的原則 ........................................................................................ 3 制定工藝方案應(yīng)注意的其它問題 ........................................................................ 4 確定箱體的生產(chǎn)類型 ...................................................................................................... 4 工藝規(guī)程的設(shè)計 ............................................................................................................... 5 確定毛坯材料及尺寸 ........................................................................................... 5 定位基準(zhǔn)的選擇 ................................................................................................... 5 制定工藝路線 ....................................................................................................... 5 工序尺寸的基本要求 ...................................................................................................... 6 粗銑上 蓋接合面 ..................................................................................................... 6 在上蓋接合面上鉆鉸定位孔 ............................................................................... 6 鉸兩定位孔 ........................................................................................................... 6 粗銑前端面，粗銑后端面 ................................................................................... 7 銑兩側(cè)窗口面和凸臺面（不含取力窗口面） ................................................... 7 銑取力窗口面 ....................................................................................................... 7 銑倒檔軸孔內(nèi)端面 ............................................................................................... 7 上蓋接合面，前后端面三面鉆孔 ........................................................................ 7 左右側(cè)面兩面鉆鉸孔 ........................................................................................... 7 .............................................................................................................. 7 粗鏜前后端面軸承孔，擴倒檔軸孔 .................................................................. 7 上蓋接合面及前后端面攻絲（三面攻） .......................................................... 8 兩側(cè)面攻絲 ......................................................................................................... 8 插槽 ..................................................................................................................... 8 精鏜前后端面軸承孔，鉸倒檔軸承孔 ............................................................. 8 精銑前端面，精銑后端面 ................................................................................. 8 去毛刺 ................................................................................................................. 8 清洗 ..................................................................................................................... 8 檢驗 ..................................................................................................................... 8 確定切削用量和基本工時 .............................................................................................. 8 工序 5 粗精銑上蓋接合面 ................................................................................... 8 工序 6 鉆鉸上蓋接合面定位孔 ........................................................................... 9 7 粗銑前后端面 ......................................................................................... 10 工序 8 銑兩側(cè)窗口面和凸臺面（不含取力窗口面 ） ...................................... 11 課件之家精心整理資料 歡迎你的欣賞 課件之家精心整理資料 歡迎你的欣賞 工序 9 銑取力窗口面 ......................................................................................... 11 工序 10 銑倒檔軸孔內(nèi)端面