摘要：在焊接领域也是如此，采用自动化焊接提高生产率和产品质量已是大势所趋。采用机器人进行焊接作业可以极大地提高生产效益和经济效率；另一方面，机器人的移位速度快，焊接质量优良且稳定。送丝是焊接过程中非常重要的一个操作环节，手工氩弧焊焊接的送丝方法多采用焊工手指捻动焊丝来完成送丝过程，焊工操作送丝时非常不方便，因此，手工送丝准确性差、一致性差、送丝不稳定，从而导致了焊接生产效率低下，焊接成型一致性差。另外，焊工手持焊丝长度有限，长时间焊接时需要频繁拿取焊丝，焊接效率较低，且每段焊丝焊接完成时都会留存一小段焊丝无法使用，造成了浪费。自动送丝机是一种自动驱动的机械化送丝装置，其主要应用于手工焊接自动送丝、自动氩弧焊自动送丝、等离子焊自动送丝和激光焊自动送丝。系统采用微电脑控制，直流减速电机传动，送丝精度高，可重复性好。9337
In welding field, using the automatic welding production efficiency and product quality has been the trend of The Times. Using robot welding operation can greatly improve production efficiency and economic efficiency; Robot, on the other hand, the displacement speed, excellent welding quality and stability. Wire is a very important operation steps in the process of welding, manual argon arc welding wire feeding methods more welder fingers twist wire to complete the wire feeding process, welding wire feeding operation is not convenient, therefore, manual wire feeding accuracy is poor, poor consistency, wire is not stable, resulting in the welding production efficiency is low, welding shape consistency. In addition, the welder with wire length is limited, for a long time frequently take when welding wire, welding efficiency is low, and each section of wire welding is completed over a short period of welding wire can't use, caused the waste. Automatic wire feeding machine is a kind of mechanized wire feeding device of automatic driving, it is mainly used in manual welding automatic wire feeding, automatic argon arc welding, automatic wire feeding, automatic plasma welding wire feeding and automatic laser welding wire feeding. System controlled by microcomputer, dc deceleration motor drive, wire feeding of high precision, good repeatability
Key Words：Automatic；wire ；feeding目录
1 绪论    
1.1 选题的背景    1
1.2自动化焊接的发展现状    1
1.3 课题的实际应用和意义    2
2.三自由度焊接机器人自动送丝机构设计的工作原理以及主体结构    4
2.1三自由度焊接机器人自动送丝机构设计的工作原理    4
2.1.1气体保护焊    4
2.1.2 CO2焊的基本原理：    4
2.1.3 CO2的种类：    4
2.1.4气体流量    7
3. 电动机的选择    7
3.1. 交流同步电动机    7
3.2 直流电动机    8
3.3 三相异步电动机    9
4.减速器设计    9
4.1.传动方案的拟订及说明    9
4.2输出轴理论力矩的修正    10
4.3输出轴功率计算    11
4.4传动装置的运动、动力参数计算    12
4.5传动设计    13
4.5.1选择材料、热处理方式和公差等级    13
4.5.2初步计算传动尺寸    13
4.5.3确定传动尺寸    14
4.5.4.校核齿根弯曲疲劳强度    15
4.5.5计算齿轮传动其几何尺寸    15
4.6齿轮上作用力的计算    16
4.6.1已知条件计算齿轮上的作用力    16 三自由度焊接机器人自动送丝机构设计+CAD图纸:http://www.751com.cn/jixie/lunwen_8019.html