摘　要
在機械制造的機械加工，檢驗，裝配，焊接和熱處理等冷熱工藝過程中，使用著大量的夾具，用以安裝加工對象，使之占有正確的位置，以保證零件和工件的質(zhì)量。
本次設(shè)計主要是進行蓋體類零件的專用夾具的設(shè)計，是對我們以往所學(xué)知識的總結(jié)和對我們所掌握知識的一次擴展。本文主要從工藝規(guī)程的指定與夾具的設(shè)計兩方面出發(fā)。根據(jù)零件本身的特點，生產(chǎn)類型以及零件在具體工作時的作用選擇工藝規(guī)程和夾具。在工藝規(guī)程方面：確定生產(chǎn)類型，綜合考慮其準(zhǔn)確度高，生產(chǎn)效率高，消耗經(jīng)濟少等方面，選擇一個最優(yōu)方案；在夾具設(shè)計方面，因為是蓋體類零件，加工Ф10孔，選擇鉆床加工，考慮諸多因素擬訂最優(yōu)方案，最終完成本次設(shè)計。

Abstract
 The machine made in the machine processes, examining, assembling, welding with heat handle to wait cold and hot craft process in, use a great deal of tongs, in order to the gearing process object, making it occupy right position to promise the quality of spare parts and work piece.
This design is mainly the design of appropriation tongs which carries on covering body spare parts, is tally up the knowledge that we learn before and to the once expanding of the knowledge that we control.This text mainly sets out from the design both side of the specifying of craft rules distance and the tongs.According to the characteristics of spare parts, the function produced type and spare parts while concretely working choice the craft rules distance and tongs.In the craft rules distance aspect:Assurance produce a type, comprehensive consider its ccurate degree high, produce an efficiency is high, consume economy little etc. aspect, choose the superior project;Design aspect in the tongs, because of is cover body spare parts, process  Ф 10 bores, the choice drills a bed to process, considering many factors to draw up the superior project, end completion originally time design.

目 錄
1設(shè)計任務(wù)……………………………………………………7
2零件的分析…………………………………………………7
2.1零件的作用……………………………………………7
2.2零件的工藝分析………………………………………7
3確定毛坯的制造方法和毛坯的形狀………………………8
3.1毛坯的種類……………………………………………8
3.2毛坯的結(jié)構(gòu)工藝………………………………………8
3.3毛坯選擇的依據(jù)………………………………………8
3.4坯料尺寸公差與機械加工余量………………………8
4機械加工工藝規(guī)程設(shè)計……………………………………9
  4.1基準(zhǔn)的選擇……………………………………………9
  4.2零件表面加工方法……………………………………9
  4.3制定工藝路線…………………………………………10
5加工6×Ф7孔的專用機床夾具設(shè)計……………………11
5.1設(shè)計要求………………………………………………11
5.2制定工藝路線…………………………………………12
5.3定位元件的選擇………………………………………12
5.4夾具設(shè)計的有關(guān)計算…………………………………13
5.5夾具結(jié)構(gòu)設(shè)計及操作簡要說明………………………15
6方案綜合評價與結(jié)論………………………………………15
7本次課程設(shè)計體會與展望…………………………………16
參考文獻……………………………………………………17