本次设计制定了LH157ＱＭＪ－Ｃ左箱体工序卡及第一道工序的夹具。从审题到完成一般都要经过类似过程，分析如下：工件加工工艺路线；各个工序的内容及采用的机床和工艺装备；工件的检验项目及检验方法；切削用量；工时定额及工人的技术等。机床夹具是在机床上用以正确确定工件的位置，并可靠而迅速的将工件夹紧的机床附加装置。它主要有以下几个基本部分组成： 定位元件及定位装置、对刀及导引元件、夹紧装置、联接元件、夹具体及其他装置等。
关键词  加工工艺  夹具设计
Abstract
The school has designed a LH157QMJ-C left box processes cards and process the first fixture. Question from the trial to go through a similar process to complete normally, as follows: work piece processing line; all the content and processes used in machine tools and processing equipment; parts of test items and test methods; Cutting; the fixed hours of work and workers in the technology. Machine tool fixture is in the machine tools used to determine the correct position of the work piece, and a reliable and fast machine tool work piece clamping attachments. It mainly has the following basic components: positioning components and positioning device, tool and guidance components, clamping device, connected components, specific folders, and other devices.
Keywords   Processing craft  Jig design  
目  录
 
  1  引言 1
  2  生产纲领 2
2.1  计算生产纲领决定生产类型 2
2.2  计算生产节拍 3
  3  零件的分析 4
3.1  零件的作用方案设计 4
3.2  零件的工艺分析 4
  4  工艺规程设计 5
4.1  确定毛坯制造形成 5
4.2  基面的选择 6
4.3  制定工艺路线 7
4.4  机械加工余量、工序尺寸及毛坯尺寸的确定 11
4.5  确定切削用量及基本工时 12
  5  夹具的设计 38
5.1  问题的提出 38
5.2  夹具的设计 38
  总结语 42
  致谢 43
  参考文献 44

机械毕业设计|论文