在煤矿井下的生产过程中,需配制多种管路,所有这些管路是由管子及与之相配套的法兰盘相互联接起来的。一般是在地面上先把法兰盘焊在管子的两端,下井使用时再把法兰盘与法兰盘相互联接。在焊接法兰盘与管子的过程中,如果把管子直接放在地上,工作时很不方便,操作者需要长时间弯腰低头工作,劳动强度大,生产效率低。在长期的工作实践中,千秋煤矿根据焊接工人在工作中的身体姿式及工作方式,在保证焊接质量的前 In the coal mine production process, the need to formulate a variety of pipelines, all of these pipelines and its supporting flange connected to each other. Generally, the flanges should be welded on both ends of the pipe first on the ground, and the flanges and flanges should be connected to each other when they are used down. In the process of welding flange and pipe, if the pipe is placed directly on the ground, it is very inconvenient to work. The operator needs to bow a long time to bow his head to work, so that the labor intensity is large and the production efficiency is low. In the long-term work practice, Qian Qiu Coal Mine according to the work of the welder in the body posture and work style, before ensuring the quality of welding