Furnace tube welding centering and gas protection device
A gas protection device and furnace tube technology, which is applied in auxiliary devices, welding equipment, auxiliary welding equipment, etc., can solve the problems of difficulty in ensuring the concentration of shielding gas in the welding area, difficult to control product quality, and inability to protect the welding area, and save consumption. volume, reduce labor intensity, and overcome the effect of low centering accuracy
Active Publication Date: 2015-10-28
EAST CHINA UNIV OF SCI & TECH +1
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Problems solved by technology
In the previous welding process, since there was no special welding centering and gas protection device, manual visual centering was used in the welding process, the centering accuracy was poor, the operation was difficult, the product quality was difficult to control, and the labor intensity of the workers was relatively high; In the past, the welding gas protection was implemented by using a gas delivery pipe to pass the shielding gas from one end of the pipe to be welded, and using cotton cloth to block the pipe for sealing
This method is less effective, it is difficult to ensure the concentration of shielding gas near the welding area, and cannot fully protect the welding area
Method used
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Embodiment
[0036]Purpose of work: to assist in the centering of the furnace tube welding process and to provide gas protection
[0037] Implementation object: the inner diameter of the furnace tube is 110mm, and the length of a single furnace tube is 1.8m
[0038] Working process: Place the two furnace tubes to be welded on the welding support, and the distance between the two furnace tubes should meet the requirements of the welding process. Remove rubber pressing sheet 25, wear-resistant rubber skin 30. According to the inner diameter of the furnace tube, determine the number of sponge sheets 31, respectively wrap three sponge sheets on the large sealing seats 29 at both ends of the device, cover the wear-resistant rubber skin 30, and install the rubber pressing sheet 25 to compress the wear-resistant rubber skin 30 , check whether the fixation of the wear-resistant rubber skin 30 is reliable. After reliable fixing, connect two 1m-long inner control rod extension rods to the inner co...
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The invention relates to a weld centring and gas protecting device for furnace tube, the protecting device pushes and opens the jack catch through a slide block, and the jack catch is used for aligning two sections of furnace tube to be welded by supporting the inner walls of the furnace tubes. The slide block is pushed by a thread bushing, and which is connected to a control handle through a control rod, the control handle is rotated for controlling the radial movement of the thread bushing and controlling the movement of the jack catch. An internal control rod is sleeved in an external control rod for respectively controlling two groups of jack catches at the same side, the control rod can be lengthened through an extending rod for lengthening the control distance. A gas spreading structure is formed in the device for spreading the weld protecting gas, the protecting gas is injected from the end of the internal control rod, and the protecting device is provided with a sealing structure for preventing protecting gas leakage. The weld centring and gas protecting device for furnace tube can exactly align the pipe joints of two sections of furnace tubes, effectively adjust the straightness accuracy, guarantee higher protecting gas concentration for the welding area and greatly save the protecting gas consumption.
Description
technical field [0001] The invention relates to a device capable of centering two sections of objects with cylindrical inner cavities, in particular to a furnace tube welding centering and gas protection device. The device can center two sections of furnace tubes in the furnace tube welding process, and pass the protective gas into the inside of the furnace tubes. Background technique [0002] During the welding process of the furnace tube, it is necessary to center the two sections of the furnace tube to be welded and provide gas protection for the welding process. In the previous welding process, since there was no special welding centering and gas protection device, manual visual centering was used in the welding process, the centering accuracy was poor, the operation was difficult, the product quality was difficult to control, and the labor intensity of the workers was relatively high; In the past, the welding gas shielding was implemented by using a gas pipe to pass th...
Claims
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IPC IPC(8): B23K37/04B23K37/00
CPCB23K37/00B23K37/0531
Inventor 韩天宇展益彬江丰元安琦
Owner EAST CHINA UNIV OF SCI & TECH