立角焊自动焊机机头的研制

Development of automatic welder head for fillet welding in the vertical position

根据立角焊焊接的特点,针对立角焊自动化程度低、调整困难、生产率低等缺陷,设计了一种立角焊自动焊机的机头。详细介绍焊机机头的总体方案设计、结构组成和设计以及技术要点,包括不同动力装置的对比分析,焊机机头的结构设计、工作原理分析和三维模型的建立,焊枪位姿数学模型的建立和分析。实现了焊枪与水平面夹角的自动化调整,焊枪的自动对齐焊缝以及焊枪(焊丝)与焊缝距离的自动补偿功能,焊机的自动化和柔性化程度都得到了很大提高。

The design of an automatic welder head for fillet welding in the vertical position is presented in this paper.The automation of this process is needed because of the low welding productivity and tedious adjustment,which are unavoidable in manuM welding and less automatic welding machines.Welding head is modeled and the mechanism is described.The design scheme of powerplant is also investigated, and the performance of different cylinders is compared.The mathematical model is established to analyze the welding torch position.The mechanism of the welding head is capable of automatic adjusting the angle between the welding gun and the horizontal plane,decreases the length of welding head and meets the demands of different workpieces.It also can align the welding gun to weld automatically.Moreover, the compensation of the distance between the welding gun and weld is possible.The welding head is not only highly automatic but also is flexible.