Method for assembling and welding curved-surface sector-segment frames

A fan-shaped segment and frame technology, applied in the welding field of complex frames, can solve the problems of low product quality and production efficiency, heavy workload, etc., and achieve the effect of easy operation, reduced labor intensity, and uniform processing allowance

Active Publication Date: 2010-04-07
YICHANG JIANGXIA MARINE MACHINERY
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Problems solved by technology

Existing manufacturers of metallurgical equipment all adopt the method of plotting the ground sample line to assemble the inclined bearing blocks one by one according to the size. The workload is heavy, and the product quality and production efficiency are not high.

Method used

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  • Method for assembling and welding curved-surface sector-segment frames
  • Method for assembling and welding curved-surface sector-segment frames
  • Method for assembling and welding curved-surface sector-segment frames

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Embodiment Construction

[0023] A method for assembling and welding a curved segment frame, comprising the following steps:

[0024] 1) if figure 2 In the process, the ground sample line is first drawn on the steel platform, positioned by the positioning block 4, and the vertical plate 3, the bearing seat 2 and the pipe assembly 5 are welded to obtain the following image 3 In the vertical plate welding assembly, the positioning block 4 includes a reference block, which is used to determine the assembly datum of the workpiece;

[0025] 2) if Figure 4 In the process, two assembling process modules 6 are processed on a 15mm thick steel plate with a CNC cutting machine, and the tooling mating surface 7 is ground according to the process requirements, even if the spatial position and inclination angle of the tooling mating surface 7 are consistent with the six vertical plate welding components After rotating 180°, the spatial position and inclination angle of the bearing seat on it are consistent;

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Abstract

The invention discloses a method for assembling and welding curved-surface sector-segment frames, which relates to a method for welding complex frames. By adopting positioning blocks and special process modules, a plurality of working-equipment matching surfaces and bearing blocks of upstanding-plate welding components are positioned, assembled and fixed respectively. The method has the advantages of raising work speed, saving 17 hours of assembly, reducing work intensity, improving machining quality and reducing rework rate from 40 percent to 5 percent.

Description

technical field [0001] The invention relates to a welding method for a complex frame, in particular to a method for welding a curved sector frame. Background technique [0002] The working condition of the curved segment frame is relatively harsh, it is a vulnerable part, and the production volume is large. The number of bearing seats on the curved sector frame is large, and they are not on the same plane, and the machining accuracy is high. As a weldment, it is difficult to assemble and weld. Existing metallurgical equipment manufacturers all adopt the method of plotting the ground sample line to assemble the inclined-plane bearing blocks one by one according to the size, which has a large workload, and the product quality and production efficiency are not high. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a method for assembling and welding the curved segment frame, which can reduce the welding and assembli...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/00
Inventor 李菊香杨雄才
Owner YICHANG JIANGXIA MARINE MACHINERY
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