基于汽车发动机缸体零件夹持机械手设计(含CAD零件装配图)(任务书,设计说明书12000字,CAD图纸3张,答辩PPT)
摘要
本论文是结合目前实际生产中,常常发现仅用汽车发动机缸盖夹具不能满足生产工作要求,用汽车发动机缸盖夹具装夹工件生产效率低、劳动强大,加工质量不高,而且往往需要增加划线工序,而专门设计了缸盖夹手,主要包括夹具的定位方案,夹紧方案、对刀方案,夹具体与定位键的设计及加工精度等方面的分析。
本机器人缸盖夹具的工作原理是:由电机带动齿轮齿条机构,由齿轮齿条的啮合装置带动直线导轨来回移动,直线导轨与运动机械手指、气缸、法兰相连,从而实现整体机械手指的整体横向移动,调节机械手指之间的距离,从而实现发动机缸盖的夹持工作。
本设计缸盖夹手有良好的工作性能,针对性强,主要用于缸盖的夹持的操作。其具有夹紧力装置,具备现代夹具所要求的高效化和精密化的特点,可以有效的减少工缸盖夹持的基本时间和辅助时间,大大提高了劳动生产力,从而可以有效地减轻工人的劳动强度和增加劳动效率。缸盖夹手具有提高生产率、扩大工艺范围、减轻工人劳动强度以及保证生产安全等特点。因此,对夹具知识的认识和学习以及设计新式的适合实际生产的夹具在今天显得尤为重要起来。
关键词:汽车发动机;缸盖;夹具;
Abstract
In this paper is combined with the actual production, often found in automobile engine cylinder head fixture can not only meet the production requirements, with the automobile engine cylinder head fixture clamping workpiece production efficiency, low labor quality is not high, and often need to increase the marking process, specially designed for cylinder head hand, mainly including fixture locating scheme, the clamping scheme, the scheme of the knife, clamp locating and specific key aspects such as design and machining precision of analysis.
Cylinder head fixture this robot working principle is: by motor driven gear rack mechanism, driven by the meshing of gear and rack moving back and forth linear guide, linear guide, cylinder, flange and movement mechanical finger is linked together, so as to realize the whole mechanical finger lateral movement of the whole, adjust the distance between the manipulator hand, so as to realize the clamping of the engine cylinder head.
This design cylinder head hand good machining precision, pertinence, mainly used for clamping cylinder head machining.Its clamping force device, the qualifications for the modern fixture efficiency, and the characteristics of motors, can effectively reduce the processing time and auxiliary time, greatly improving the labor productivity, which can effectively reduce the labor intensity of workers and increase the work efficiency.Cylinder head clamp hand has to raise productivity, expanding the scope of the process, reduce labor intensity and ensure safe production, etc.Therefore, understanding of fixture knowledge and learning, and is suitable for the actual production in the design of new jig in today is particularly important.
Key words:Car engines; cylinder head;fixture;
目 录
第一章绪论 1
1.1 汽车发动机缸体零件夹持机械手概述 1
1.2 汽车发动机缸体零件夹持机械手的组成及作用 2
1.2.1 汽车发动机缸体零件夹持机械手的组成 2
1.2.2 汽车发动机缸体零件夹持机械手的作用 2
第二章夹持机械手的对发动机缸体抓取设计 4
2.1 夹持机械手对发动机缸体抓取设计关键技术参数要求 4
2.2 汽车发动机缸体零件夹持机械手的传动方案设计 4
2.3 汽车发动机缸体零件夹持机械手的驱动气缸选择 5
2.3.1 气缸活塞的永久润滑系统 6
2.3.2 气缸设计特点 6
2.3.3 气缸的设计 7
2.4 汽车发动机缸体零件夹持机械手的导轨选择 9
2.5 汽车发动机缸体零件夹持机械手的齿轮齿条选择 10
2.5.1 选定齿轮类型,精度等级,材料及齿数 10
2.5.2 按照齿面接触强度初步设计齿轮主要尺寸 10
2.5.3 按照齿根弯曲强度设计齿轮主要尺寸 13
2.5.4 几何尺寸计算 14
2.5.5 齿轮结构设计 15
2.5.6 齿轮传动的润滑方式 15
2.5.7 绘制齿轮零件图 16
第三章汽车发动机缸体零件夹持机械手对缸盖托板抓取设计 17
3.1 夹持机械手对缸盖托板抓取设计关键技术参数要求 17
3.2 夹持机械手对缸盖托板抓取传动方案设计 17
3.2.1 夹紧机械手的设计原则 17
3.2.2 夹紧力计算 18
3.2.3 夹紧装置的组成 19
3.3 汽车发动机缸体零件夹持机械手的真空吸盘选择 19
第四章基于solidworks夹持机械手的建模及装配 22
4.1 solidworks软件建模与装配概述 22
4.2 运用SolidWorks软件进行零件设计 22
4.3 运用SolidWorks软件进行零件装配 24
第五章结论 27
参考文献 28
致 谢 29
附 录 30
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