自动精辊机机械结构设计.doc

本科毕业设计（论文） 题目：自动精辊机机械结构设计 学 院 专 业 学生姓名 学生学号 指导教师 提交日期  摘 要 本文详细介绍了一种用于空调器轴套内孔的精辊加工专机的机械结构设计。在以往的加工中，该内孔的精加工工序均靠人工操作，次品率高、效率低；随着经济社会的发展，人工成本也不断增大，人工加工已不能满足生产要求。基于此，本课题设计了一种针对风机轴套内孔精加工的自动精辊机。 本文首先介绍了风机轴套的用途和自动化设备机械结构设计的国内外发展概况，分析风机轴套的加工要求，确定本课题的总设计方案。在送料部分，确定了以步进电机带动送料轮转动送料的自动送料机构；在夹紧装置方面，设计了以左右V型夹板夹紧的夹具装置，夹紧装置由两级气缸驱动，在夹具松开的同时工件下掉出料；在加工部分，采用双无间隙直线导轨滑块搭载交流电机进行精辊加工，电机水平运动由气缸驱动。在本文中将对上述设计作解析说明，阐明其工作原理，并详细描述了其工作过程。 在整机装配上的基础上，进行了现场调试和工作测试，并对调试和测试过程中需要注意的事项和出现的问题进行了说明和修正；产品实际加工结果表明该设备加工稳定，产品加工精度较高，生产效率有较大提高，能较好地满足生产要求。 关键词：风机轴套；内孔精加工；自动加工设备；机构结构设计  Abstract This paper describes the mechanism design of an automated machine which is using for the fine rolling processing of the inner bores in a kind of sleeve using in the air-condition. In the traditional processing methods, this operation relies on the manual and in this case, the processing produced many substandard products and the efficiency is not high. With the development of the social economic, labor costs are also increasing. Thus, manual processing cannot fit the requirements of industrial production. Based on these subjects, a kind of automated mechanical equipment which can process the inner bore of this kind of fan sleeve has been designed in this paper. This paper first introduced the using of fan sleeve and the development in mechanism design of automated processing machine, and analyses the processing requirements of fan sleeve, identify overall design scheme of the subject. In the feeding section, feeding wheel rotated by the stepper motor feeding is used as an automatic feeding mechanism. In the section of jig and fixture, we design a V-type splint fixtures which are driven by a twinstage cylinder and the workpieces in the fixtures falls when the fixtures loosen. In the processing section, fine rolling processing works by a AC motor which is installed on dual-unspaced guide rail sliding blocks. Horizontal movement of the AC motor is driven by the cylinde