毕业设计（论文）-速左支架镗削夹具设计（全套图纸）.doc

摘要PAGE IV PAGE IV变速左支架镗削夹具摘 要机床夹具是在机床上加工零件时所使用的一种工艺装备，其主要作用是实现工件的定位和夹紧，它直接影响加工的质量、生产效率、生产成本和工人的劳动强度。所以，机械加工工艺准备中的一项重要工作就是机床夹具的设计。本文首先介绍了夹具所处的历史研究背景，通过查阅、整理和分析资料，了解了机床夹具的功能及其相关内容；通过对夹具的切实设计，学会了夹具设计的一般准则和具体的设计过程。此次设计以镗床夹具为例，首先对工件的加工工艺进行分析，确定多种定位方案和夹紧方案；然后通过定位误差和夹紧力的计算，从多种方案中选取最优方案；最后绘制夹具装配图及夹具中非标准零件图。本次设计是我们在毕业前对所学课程的一次深入、全面的总复习，为今后的设计工作提供一个历练的平台。关键词：镗床，夹具，设计，定位，夹紧全套图纸，加153893706Shift left bracket boring clampABSTRACTMachine tool fixture is a kind of process equipment used to machine parts on the machine tool, its main function is to position and clamp the workpiece, it directly affects the machining quality, production efficiency, production cost and labor intensy of workers. Therefore, an important work in mechanical processing technology is to design a reasonable set of machine tool fixture.Firstly, this paper introduces the historical background of the fixture. Through consulting, collating and analysising date, I understood the function of machine tool fixture and its related content; through the practical design of fixture, I learned the general principles and specific design process of the design of fixture. The design sets boring machine fixture as an example, first analysis of machining process of workpiece to define a plurality of positioning and clamping scheme; and then through the calculation of location error and the clamping force, choose the best scheme from many schemes; finally draw fixture assembly and fixture in non-standard parts diagram.This design is a general review in-depth, comprehensive course of study before our graduation and provides a training platform for future design work.KEY WORDS: boring machine，fixture，design，fix position，clamp前言目　录 TOC \o 1-3 \h \z \u HYPERLINK \l _Toc388980730 前　言 PAGEREF _Toc388980730 \h 1 HYPERLINK \l _Toc388980731 第1章 机床夹具概述及设计准则与要求 PAGEREF _Toc388980731 \h 4 HYPERLINK \l _Toc388980732 1.1 机床夹具概述 PAGEREF _Toc388980732 \h 4 HYPERLINK \l _Toc388980733 1.1.1 机床夹具的分类 PAGEREF _Toc388980733 \h 4 HYPERLINK \l