车床尾座套筒加工工艺规程设计说明书.docVIP

摘 要 本次毕业设计针对车床尾座套筒工艺规程进行设计，涉及套筒的选材、确定毛坯和机械加工余量及工序尺寸与公差、拟定工艺路线、选择工艺设备；并进行切削用量和时间定额的计算，填写机械加工工艺过程卡和机械加工工序卡片。为了保证加工质量，提高生产效率，对关键工序进行夹具设计。本文对夹具的工作原理、作用、分类和组成做了简单概述；着重分析了工序特点和要求，根据结果确定定位方案，设计定位元件、夹紧机构、对刀元件和夹具体。因此，保证了加工精度和设计质量。 关键词：车床尾座套筒；工艺规程设计；夹具设计；生产规划 Abstract This paper carries on the design in view of the tailstock sleeve technological process, involves the selection of the sleeve, the determination of semi-finished materials, the machining allowance, the working procedure size and the common difference. I draw up the sleeve route, and choose the process unit. And then I carry on the computation of the cutting specifications and the time norm, next I fill above-mentioned results in machine-finishing technological process card and the machine-finishing working procedure card. In order to guarantee the processing quality and enhance the production efficiency, I carry out the jig design to the essential working procedure. In this paper I have made the simple outline to the operating principle, the function, the classification and the composition of the jig. I have also emphatically analyzed the characteristic and the request of the working procedure, determined the localization plan according to the result, and designed the localization part, the clamp organization, the guiding component and the jig body. Therefore, the processing precision and the design quality have been guaranteed. Keywords: tailstock sleeve；Technological process design； Jig design；Production plan 目 录 第1章 绪 论 1 1.1车床尾座套筒加工技术现状及发展方向 1 1.2本课题研究的目的、意义 2 1.3课题的主要内容 3 第2章 车床尾座套筒的机械加工工艺规程设计 5 2.1车床尾座套筒的工艺分析及生产类型的确定 5 2.1.1车床尾座套筒概述 5 2.1.2车床尾座套筒零件的技术要求 5 2.1.3确定车床尾座套筒的生产类型和工艺特征分析 6 2.2车床尾座套筒的材料和毛坯确定 7 2.2.1车床尾座套筒毛坯材料、加工方法及技术要求 7 2.2.2车床尾座套筒毛坯的尺寸公差和机械加工余量 8 2.2.3绘制车床尾座套筒毛坯简图 9 2.3拟定车床尾座套筒工艺路线 9 2.3.1定位基准的选择 9 2.3.2表面加工方法的确定 9 2.3.3加工阶段的划分 10 2.3.4加工工艺路线方案确定 10 2.4机床设备及工艺装备的选用 11 2.4.1机床设备的选用 11 2.4.2工艺装备的选用 12 2.5加工余量、工序尺寸及其公差的确定 13 2.6确定切削用量及时间定额 14 2.6.1切削用量的计算 14 2.6.2时间定额的确定 16 2.7填写工艺文件 17 2.8工艺分析