變速齒輪箱體加工工藝及其夾具設(shè)計

1、目 錄摘要 .............................................................1關(guān)鍵詞 ...........................................................11 前言 ..........................................................22 零件的分析 ............

2、.........................................22.1 零件的作用 ...................................................22.2 零件的工藝分析 ...............................................23 確定毛坯、畫毛坯-零件合圖 ......................................43

3、.1 毛坯材料的選擇 ...............................................43.2 確定毛坯制造方法 .............................................43.3 鑄件加工余量和尺寸公差 .......................................43.4 繪制毛坯零件綜合圖 ................................

4、...........54 工藝規(guī)程 .......................................................64.1 定位基準的選擇 ...............................................64.1.1 精基準的選擇 ...............................................64.1.2 粗基準的選擇 ...........

5、....................................6變速齒輪箱體加工工藝及其夾具設(shè)計 變速齒輪箱體加工工藝及其夾具設(shè)計摘 要：隨著機械加工行業(yè)技術(shù)的迅猛發(fā)展，零件工藝規(guī)程的分析以及加工工藝裝備的設(shè)計與選擇已經(jīng)成為機械加工的前提和依據(jù)。本次設(shè)計完成了犁刀變速齒輪箱體的加工工藝的確定及鉆夾具、銑夾具的設(shè)計。論文介紹了箱體加工總體方案的設(shè)計過程。通過對參考文獻的分析，闡述了機械夾具的作用及設(shè)計方法。在技術(shù)路線中，論述

6、了定位方案的最優(yōu)化選取、夾緊方式的選擇，夾具總圖上尺寸、公差及技術(shù)要求的標注，工件的加工精度分析。關(guān)鍵詞：變速齒輪箱體；夾具設(shè)計；工藝裝備；工藝分析；The Design of Gearbox Processing Technology and FixtureAbstract: With the development of industry of the mechanism, the process analysis for part

7、s, the equipment design and selection of machining have become the premise and basis for mechanical processing. This design completed the confirm of the processing of the gearbox parts and the design of Milling machine f

8、ixture and Drilling machine fixture. The papers show us how to design and produce the box .By the study of the material and documents, the role of the mechanical fixture and the design of the methods has been discussed.R

9、efer to the process for technology, some problems which are important to the design, such as how to choose the best ways to positioning and clamping ,how to mark the size, tolerances and technical requirements of the fix