减速机箱体镗孔专用工装设计及三维装配【说明书+CAD图纸+SW三维+18张工序卡+过程卡+中英文翻译文献+开题报告+任务书】

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减速机箱体镗孔专用工装设计及三维装配【说明书+CAD图纸+SW三维+18张工序卡+过程卡+中英文翻译文献+开题报告+任务书】

摘要

本文是在减速机箱体的图样分析后进行减速机箱体的机械加工工艺路线的设计，同时按照其中的加工工序的要求设计夹具。

减速机箱体的主要加工内容是表面和孔。其加工路线长，加工时间多，加工成本高，零件的加工精度要求也高。按照机械加工工艺要求，遵循先面后孔的原则，并将孔与平面的加工明确划分成粗加工和精加工阶段以保证加工精度。基准选择以底面作为粗基准，以底面与两个工艺孔作为精基准，确定了其加工的工艺路线和加工中所需要的各种工艺参数。

在零件的夹具设计中，主要是根据零件加工工序要求，分析应限的自由度数，进而根据零件的表面特征选定定位元件，再分析所选定位元件能否限定应限自由度。确定了定位元件后还需要选择夹紧元件，最后就是确定专用夹具的结构形式。

关键词：减速机箱体；加工工艺；工序；专用夹具

Abstract

This paper is the design of mechanical processing routes of spindle box in the pattern analysis of spindle box after the design process, and in accordance with the requirements of the fixture.

The main processing spindle box is the surface and hole. The processing route is long, processing time, high processing cost, the machining precision is high. In accordance with the requirements of the machining process, follow the principle of the surface after the first hole, and the hole and the plane processing clearly divided into roughing and finishing stages of processing to ensure accuracy. Datum selection to the bottom as a rough benchmark, the bottom surface and the two holes as a precision technology base, various process parameters needed to process the machining and processing of the.

In the fixture design of parts, mainly according to the requirement of machining process, the number of degrees of freedom analysis should limit, then according to the surface characteristics of components selected location element, then analyze the selected location components can be qualified shall be limited degrees of freedom. Determine the location element also need to select the clamping element, the last is to determine the structure of the special fixture.

Key words: spindle box; processing technology; process; special fixture