Combined welding tool for preventing deformation of flange
A welding tooling and flange welding technology, applied in welding equipment, auxiliary welding equipment, welding/cutting auxiliary equipment, etc., can solve the problems of difficult control of welding deformation, no position positioning, easy deformation, etc., to reduce welding deformation , to meet the effect of welding precision
Inactive Publication Date: 2020-05-08
BEIJING POWER MACHINERY INST
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Problems solved by technology
[0003] For the existing flange welding method, the flange and the product are welded by scribing, the position line is drawn on the flange and the product by hand or machine tool, and the flange is installed and directly welded. The existing method can only guarantee The initial welding position of the flange, but there is no position positioning during the welding process. When the heat input is large, the welding deformation is difficult to control, and it is easy to deform after welding. Through the actual welding inspection, the maximum deformation of the flange end face reaches 0.8, and the flange The amount of deformation is close to failing to meet the requirements
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[0017] The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
[0018] This embodiment provides a combined welding tool for preventing flange deformation as an auxiliary welding tool for welding the flange to the product.
[0019] The inner profile of the product is generally round or oval. like figure 1 As shown, the combined welding tool includes a base plate 1, a pressure block 2, a mandrel assembly 3 and a bolt 4, wherein the base plate 1 is provided with a through hole that is consistent with the outer contour of the flange to be welded, and the pressure block 2 is fixed by bolts 4. On the base plate 1, the flange to be welded is pressed against the base plate 1 by 10 pressing blocks 2, so that the outer contour position of the flange to be welded corresponds to the contour position of the through hole on the base plate 1, and the pressing block 2 is to be welded along the flange. The outer contour of the sur...
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The invention provides a combined welding tool for preventing the deformation of a flange. When the flange is welded to a product, the deformation caused by heat input during the welding of the flangecan be prevented through the welding tool, the welding accuracy is improved, and the combined welding tool has the advantages of high accuracy, less deformation and the like. The combined welding tool can prevent the flange from being deformed during welding, the flange to be welded is tightly pressed by a pressing block, the end face of the flange is tightly fixed by the pressing force, the heatinput cannot cause deformation, so that the flange welding deformation is effectively reduced, the flange deformation amount is reduced from 0.8 to within 0.2, and the requirement of welding accuracyis well met. Through a mandrel assembly, an inner hole of the welded product does not shrink, the circumference of the product is shaped through the support effect of a mandrel, and the mandrel assembly can be applied to other similar products. The combined welding tool has the advantages of detachability and reusability.
Description
technical field [0001] The invention belongs to the technical field of welding processing, and particularly relates to a flange deformation control combined welding tool. Background technique [0002] Welding of flanges is a common process in mechanical products. Flanges are responsible for the functions of connection and sealing. There are higher requirements for the welding accuracy of flanges with higher precision products, and no deformation is allowed after welding. Usually the flange is welded on the fixed part, and the welding of the flange is completed by locating the line in the fixed product. [0003] For the existing flange welding method, the flange and the product are welded by scribing, the position line is marked on the flange and the product by hand or machine tool, and the flange is directly welded after installation. The existing method can only guarantee The welding initial position of the flange, but there is no position positioning during the welding pr...
Claims
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Login to View More IPC IPC(8): B23K37/053
CPCB23K37/0536
Inventor 王勇杰麻丽红王永飞罗远锋李昂陈刚苏小龙
Owner BEIJING POWER MACHINERY INST