Welding holder capable of automatically exchanging cores

Abstract

The invention discloses a welding holder capable of automatically exchanging cores. The welding holder comprises a housing, a material storing device which is arranged on the top surface of the housing and is used for enabling welding rods to be placed, a horizontal guide rail arranged on the bottom surface of the housing, a sliding block and a fixing block, wherein the tail end of the material storing device is a discharging opening formed in the top of the housing; photoelectric sensors which are over against the discharging opening and used for detecting the discharging situation of the discharging opening are arranged at positions, at the discharging opening, of the housing; and the sliding block and the fixing block are arranged on the horizontal guide rail. According to the welding holder capable of automatically exchanging the cores, through the cooperation of the photoelectric sensors, a relay and a push-pull type electromagnet, the automatic exchanging when one welding rod isused up is realized; a light signal is converted into an electrical signal, the movement of the sliding block is controlled by controlling the operation of the push-pull type electromagnet, further the clamping of the welding rod is realized, and the process of automatically exchanging the cores is completed; the welding holder is simple and reasonable in structure, and easy, convenient and feasible to operate, and the production rate can be effectively improved; and the welding holder disclosed by the invention has the advantages of being simple in equipment, flexible to operate, high in environmental adaptability and high in automation degree.

Description

technical field [0001] The invention belongs to the technical field of manual arc welding, and in particular relates to an automatic core-changing welding handle. Background technique [0002] Due to the advantages of flexibility, simple equipment, convenient operation, and wide adaptability, electrode arc welding is still a preferred welding method in many fields, especially in some maintenance, field, high-altitude, and underwater and other special applications. The occasion is under construction. However, due to its intermittent working characteristics, electrode arc welding has low production efficiency, large waste, and high labor costs. With the emergence of high-efficiency automatic welding, the application proportion of electrode arc welding has declined. At present, the weight ratio of electrode application to welding materials in developed countries is stable, while the application of coated electrodes in my country accounts for a large proportion of the total wel...

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Problems solved by technology

[0003] Electrode arc welding mainly relies on manual operation, and the selection range of welding process parameters is small. In addition, the welding rod must be replaced frequently during welding, and the weld slag must be cleaned frequently; the main disadvantage of manual arc welding is that the welding rod needs to be replaced frequently. When the electrode used is less than 2in (about 50mm), the arc must be extinguished and the electrode must be replaced. Since the electrode head has no coating and is affected by heat accumulation, it cannot be used. We must stop welding, remove the welding slag, and remove the The welding rod head needs to be replaced with a new welding rod before welding can be restarted. Since the length of the welding rod is not long, the welding rod needs to be replaced several times in one working day, which limits the improvement of productivity, and the actual load duration of the equipment is much lower than that of 25%

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