文档介绍：双螺旋搅拌摩擦焊焊机送料工作台的设计与控制
Desing and Controlling of The Feeding Table for Double-helical Friction Stir Welding Equipment
摘要
搅拌摩擦焊（FSW）是1991年由英国焊接研究所发明的一种固相焊接技术。这种技术广泛用于铝合金结构件的连接，有取代熔焊的趋势。其焊接特点克服了裂纹、气孔、砂眼等焊接缺陷。虽然这项工艺技术开发时间不长，但是已经应用在航空航天、航海造船、交通工具等行业，因其高效性、轻型化、低成本和无污染等特点被认可，具有广阔的市场环境。
自中国搅拌摩擦焊中心成立以来，我国的搅拌摩擦焊技术也逐渐发展起来，其相关设备和成品制造取得了明显的进步。为了开启中国市场对搅拌摩擦焊的研究开发以及大规模的应用，本课题将做相关设计开发。在理论研究和试验的基础上，基于开放式CNC数控系统，对双螺旋搅拌摩擦焊焊机送料工作台进行设计与控制，和焊机主体形成一个完整的双螺旋搅拌摩擦焊焊机。这个送料机构采用了运动控制卡控制步进电机的速度、方向和行程参数，依据控制电路，使用VC++编写了控制程序，实现了对工件的自动进给，已达到准确定位。还特别设计气动夹具系统，满足对工件的自动装夹，使机床实现自动化控制。本课题为今后搅拌摩擦焊技术的研究与发展提供了全新的实验平台。
关键词：搅拌摩擦焊，送料机构，开放式CNC系统
Abstract
FSW (FSW) is a solid-state welding technology invented by the British Institute of Welding in the 1991. This technique is widely used in the connection of the aluminum structure with the trend to replace the fusion. Its features overcome such welding defects as welding cracks, porosity, shayan. Although the development of this technology is not long,it has been used in aerospace, marine shipbuilding, transportation and other is known because of its high efficiency, light, low-cost and non-polluting with broad market environment.
Since China FSW Center is established, China's FSW technology has gradually developed and its related equipment and products manufacturers have made significant progress. In order to open the Chinese market on FSW research and development and large-scale application, the topic will make related design and development. In theoretical research and experiment, on the basis of the open systems CNC, we will design and control the double helix FSW welder feed table, and form a complete with the main double helix FSW welding machine. This tape feeder body adopted Motion Control Card to control the speed, direction and trip parameters, we prepared control procedures used VC + + based on the control circuit, Finally it realizes the workpiece’s feed , and reached