设计简介
摘 要
机械制造业在国民经济中占有重要的地位，是一个国家或地区发展的重要支柱。其中的工艺学包括对一个零件在加工中的定位、夹紧及工艺路线制定、工序尺寸确定等问题。工序设计的合理性往往是提高劳动生产率及降低零件报废率的主要因素。专用夹具设计的简单化、高效化和经济合理化是保证加工质量的前提条件。当前，制造工艺技术正向高精度、高效率、低成本、高智能化和洁净化等方面趋势发展。本篇论文共包括：铣床升降台零件的分析、工艺规程设计及镗孔夹具的设计三大部分。
关键词：工艺路线,镗孔夹具
ABSTRACT
The mechanical manufacturing industry holds the important status in the national economy, is a national or the local development important prop. Technology including to a components in processing localization, clamps and the craft route formulation, the working procedure size firmly grades the question. The working procedure design rationality often is enhances the labor productivity and reduces the components condemnation factor the primary factor. The unit clamp designs the simplification, is highly effective and the economical rationalization is guarantees the processing quality the prerequisite. Presently, the manufacture craft technology to the high accuracy, the high efficiency, the low cost, the high intellectualization and is pure and so on the aspect tendency development.This paper altogether includes: Milling machines with table of variable height with horizontal or vertical spindle-Testing component analysis, technological process design and boring jig design three major parts.
Key word: Craft route, boring jig
目 录
中文摘要………………………………………………………………………………….…...Ⅰ英文摘要……………………………………………………………………………………....Ⅱ
前言…………………………………………………………………………………………….1
第1章 零件的分析…….…....…………………………………………………………….....1
1.1 零件的作用…..........…………………………………………………………………......1
1.2 零件的工艺分析………......……………………………………………………………...1
第2章 工艺规程设计………...……………………………………………………………..2
2.1 确定毛坯制造形式……….………………………………………………………….…...2
2.2 基面的选择…...……………...……………………………………………………..........2
2.3 零件表面加工方法的选择….........……………………………………………….……….2
2.4 制定工艺路线…...……….……….…………………………………………….………...3
2.5 机械加工余量及毛坯尺寸的确定…....…….………………………………………………5
2.6 确定切削用量及基本工时…...…….……………………………………………………...6
第3章 夹具设计…...…………..………………………………………………….…….….31
3.1 问题的提出…......………………………………………………………………..…….31
3.2 夹具设计…...…...…...………………………………………………………..……….31
3.2.1定位基准的选择……….……………………………………………………………31
3.2.2切削力及夹紧力的计算…....….……...……………………………………………..33
3.2.3定位误差的分析…...………..………………………………………………...…….33
3.2.4夹具设计及操作的简要说明…....….…...…………………………………...............33
结论…………………………………………………………………………………………...34
参考文献………………………………………………………………………………….......35
致谢…………………………………………………………………………………...............36
