Deformation resistant welding clamp for pipeline assembly and method for preventing pipeline assembly from deformation by utilizing clamp

Abstract

The invention relates to the technical field of hot processing of pipeline assemblies, in particular to a deformation resistant welding clamp for a pipeline assembly and a method for preventing the pipeline assembly from deformation by utilizing the welding clamp. The welding clamp comprises a supporting seat, a fixing device and a regulating device, wherein the fixing device is used for clamping and fixing the pipeline assembly, and the regulating device is used for regulating the clamped position of the pipeline assembly; a plurality of deformation resistant limiting blocks are arranged on the supporting seat; each deformation resistant limiting block comprises a baseplate, a supporting plate and an arc-shaped plate, wherein the supporting plate and the arc-shaped plate are arranged above the baseplate, one end of the baseplate is bent downwards, a bending part for preventing the pipeline assembly from deformation towards a certain direction is arranged at one end of the baseplate in an extending manner, and the bending part is connected with the supporting seat in a clamping manner. Compared with the prior art, the welding clamp disclosed by the invention has the advantages of a deformation resistant function and being simple to operate, deformation towards the certain direction can be effectively avoided in hot processing processes of welding and the like, an operation procedure of deformation correction is omitted, errors of finished pipeline assembly products are reduced, and the processing quality of the pipeline assembly is improved.

Description

technical field [0001] The invention relates to the technical field of pipe fitting thermal processing, in particular to a pipe fitting anti-deformation welding jig and a method for preventing pipe fitting deformation by using the jig. Background technique [0002] Pipeline components (referred to as "pipe fittings") include main pipe fittings and multiple branch pipe fittings. During the production process, a large number of thermal processes such as plasma cutting and welding at different points are often involved. The resulting deformation of the pipe fittings is almost It is an unavoidable defect, and it may even produce "boat-like warping" deformation, and the adjustment of deformed pipe fittings often requires a lot of manpower and material resources, but the effect is not satisfactory. The reason is that the metallographic structure of the workpiece adjusted by local high-temperature fire has changed, resulting in secondary defects such as brittle fracture, cracks, an...

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Problems solved by technology

[0002] Pipeline components (referred to as "pipe fittings") include main pipe fittings and multiple branch pipe fittings. During the production process, a large number of plasma cutting, welding and other thermal processing at different points are often involved. The resulting deformation of the pipe fittings is almost It is an unavoidable defect, and may even produce "boat-like warping" deformation, and the adjustment of deformed pipe fittings often requires a lot of manpower and material resources, but the effect is not satisfactory

The reason is that the metallographic structure of the workpiece adjusted by local high-temperature fire has changed, resulting in secondary defects such as brittle fracture, cracks, and baking marks on the pipe fittings.

[0003] At present, there are no effective preventive measures for the pipe deformation that occurs during the welding of pipe fittings, and effective prevention cannot be carried out in advance. Only manual or mechanical corrections can be made to the pipes that have undergone welding deformation afterwards.

However, manual or mechanical correction of pipes that have undergone welding deformation requires a lot of manpower, material resources and time, and the larger the pipe, the more difficult it is to make corrections. The resulting pipe fittings have large dimensional errors, which seriously affects the processing quality and quality of pipe fittings. Subsequent assembly and use

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