Abstract
The most important trend in the development of modern technical production is increasing labor productivity and the quality of products. One of the main technological processes is the process of semi-automatic welding of various MIG units. The use of modern welding inverter semi-automatic machines allows you to obtain high-quality seams with the appropriate qualification of the welder. In a global scale, there are the acute shortage of qualified welders and the dependence of the resulting welded joints on the human factor. (Research purpose) The research purpose is analyzing the existing technology of welding transmission shafts in the production of small agricultural machinery at a particular enterprise and propose the introduction of an automatic welding machine for this operation. (Materials and methods) The article describes the complexity of performing the operation of assembling and welding two transmission shaft flanges for each standard size according to the existing technology and presents the timing results for each operation. (Results and discussion) An automatic installation with pneumatic holding and positioning of two flanges and a pipe was proposed to shorten the production cycle and eliminate the human factor. The article presents a block diagram of the installation with a programmable logic controller and a touch operator panel. The article also presents the design documentation, a prototype and results of production tests of the installation at the enterprise. Authors have developed a technological scheme for welding two ring seams. (Conclusions) The assembly process of the node by the worker was completely excluded from the technological map. The time of the full cycle for assembly and welding of the unit has been reduced by three times. The human factor was eliminated from the welding process and doesn’t influence the quality of the operation. The introduction of an automatic installation made it possible to use low-skilled personnel in this operation.
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